US1772790A - Lock - Google Patents

Description

- 12, 1930;, J. M. WEAVER 1,772,790

' LooxY l I 'Filed Deo. 21; 1925 s sheets-sheet s' Z22 ven/02 A Patented ug. l2, 1930 JAMES M. WEAVER, OF LOS ANGELES, CALIFORNIA LOCK y Application led December 21, 1925. Serial No. 76,582.

This invention has to do generally with locks, and is particularly well adapted for embodiment in locks wherein the bolt and bolt throwing spindle are of cylindrical form whereby only two axially perpendicular holes need be bored in a given door to prepare it for installation of the lock; in contradistinction to usual locks which, due to their configuration, necessitate considerable chiseling and cutting of the door. However, it will be understood that the invention, considered in its broader aspects, is not limited to embodiment in a lock having these particular characteristics. For instance, the bolt assembly shown may be used in combination with a type of throwing spindle other than that illustrated; or vice versa.

It is among the general objects of the invention to provide a lock that is simplerand sturdy, one which is unfailing in action, and

Y one which may be installed with minimum eort and with minimum mutilation of the door.

A special feature of `the invention resides in the provision of means within the spindle for locking the bolt in extended position. To accomplish this I have utilized a spindle of tubular form, the bolt locking memberbeing movable longitudinally. through the spindle bore, though it lies within the scope of the invention to provide a'locking member within the bore which is movable to and from locking position by movement other than longitudinally.

The locking member is adapted to be con-l trolled in its movement by means provided at the ends of the spindle, the means preferably,

.. thoughnot necessarily, being key-controlled.

.f As will be made apparent in the detailed 'specicatiom the throwing of the locking member may be accomplished either by rotaytion or longitudinal movement of the externally accessible portion of the actuating mea-ns, and, therefore, I do not wish my broader claims to be construed as being limited to any particular type of actuating means.

Preferably, I, utilize spring means for holding the locking member normally ,in retracted position, and in certain embodiments of the invention I employ automatically acting latch means orholding the locking member' in extended position against the action of 'the spring, the latch means being releasable from either end of the bolt throwing spindle. Other novel. features and objects of the invention will be made apparent in the following detailed description, reference being had to the accompanying drawings, in which: Fig. 1 is a fragmentary elevation showing a door and casing equipped with my lock;

Fig. 2 is an enlarged section on line 2-2 of Fig. 1;

Fig. 3 is a section on line 3--3 of Fig. 2V; Fig. 4 is a fragmentary side elevation of the bolt housing as viewed from the position of line 1 -4 in Fig. 2;

Fig. 5 is a section on line 5,-5 of Fig. 2;

Fig. 6 is a section `on line 6-6 of Fig. 2;'

Fig. 7 is a view similar to Fig. 6 but showing the bolt manually thrust to the position it is put when assembly or disassembly of the bolt andv throwing spindle is being accomplished; v

Fig. 8 is a view similar to Fig. '6 but showing the bolt thrown to retracted position by rotation of the throwing spindle;

Fig. 9 is a view similar to Fior. 6 but showing a slightly modified type of olt throwing spindle; A

Fig. 10 is a detached section on line 10-10 of Fig. 2;

F'g. 11 is a section on line 11-11 of Fig. 10; f

Fig. 12 is a section on line 12-12 of Fig. 10; i 1OFig. 153 is a section on line 13,-13 of Fig.

a Fig. 14 is a fragmentary view similar in part to Fig. 10, but,I showing the locking member thrown to extended or operative position;

Fig. 14a is a'fragmentary plan view of Fig. 14 as viewed from position of line 14a-14?;

Fig. 15 is a vertical section through a bolt throwing sprindle having a somewhat different type of lock member actuating means and key-controlled mechanism therefor;

Fig. 16 is a section on line 16,-16 of Fig. 15

Fig. 17 is a plan view of the tubular plungentirely at one side of the door.

-more, it is to be understood that certaln of er shown in Fig. 16 as viewed from line 17- 17 in that ligure;

Fig. 18 is a section on 17 Fig. 19 is a View similar to Fig. 15 but showing the bolt locking member thrust to locking position, with the key as yet unremoved from the lock;

Fig. 20 is a section on line 20-20 of Fig. 19;

Fig. 21 is a view similar to Fig. 19 butl showing the condition of the lock after the key has been removed therefrom;

Fig. 22 is a view of the lock shown in Fig. 15, adjusted in a manner whereby the locking member may bemoved'to operative position by manipulation of a sleeve or bushing about the cylinder without the application of a key;

Fig. 23 is a view of the mechanism shown in Fig. 16 but showing it in a different position;

Fig. 24 is a fragmentary view similar, in part, to Fig. 15, but showing a modified type of latching andrelease mechanism; and

Fig. 25 is a section on line 25-25 of Fig. 24.

At the outset, I wish to make the reservation that while I will describe the precise make-up of the lock with a degree of particularity, it will be understood the, invention, considered in its broader aspects, is not limited to certain of thesel particularities. It will also be understood that while, for convenience, I have specified particular types of locking member control means on the throwing spindle at the outer side of the door and different types of control means on the endyof the spindle at the inner side ofthe door, these specifications arenot to be considered as limitative; for in certain situations it may be desirable to provide control means of any of the illustrated types on both sides of the door or to eliminate the control means Furtheriine is-is of Fig.

my claims are drawn to certain features of the bolt assembly or to the spindle construction and are not limited to the incllglsion of any type of locking means.

In the drawings, numeral 10 designates a fragment of a door,which is adapted to close against stationary door casing 11, there being a catch plate 13 of any suitable design mounted on the inner face of the casing and adapted to take the bolt of my lock. v

In preparing the door for installation of my lock, there are bored two axially perpendicular and intersecting holes 14; and 15, hole 14 being bored from the edge of the door, and hole 15 being bored through the door from side face to side face.

Il will first describe the bolt assembly A. This assembly is made upof a tubular sleeve or housing 15 which has at its outer endY a flange 16 which formsa face plate adapted to engage the edge of the door, being secured to said edge by screws 17. Bolt 18 is cylindrical throughout the major portion of its extent and is adapted to slide longitudinally through housing 15. The bolt is made up of a nose piece 19 preferably having a flat face 2O which is adapted to engage the flat face 21, formed at the mouth of keeper 15 by flange 21a, to hold thev bolt from rotation within the keeper. Fitted tightly over the reduced portion 22 of nose piece 19 is a tube 23 which has longitudinally extending and diametrically opposed armsI 24. rlhe ends of these extensions are turned inwardly into end opposition to provide angular fingers or hooks 25, the ends of the hooks being spaced apart as clear; ly shown in Fig. 6 to allow the passage therebetween of amember to be hereinafter described. The ends of arms 24 are of reduced width, as clearly shown in Fig. 2, to provide end shoulders 26.

The inner end of nose piece 19 is recessed at 27 to take one end of spring 28, and an abutment plate 29 (Figs. 3 and 6) is attached to said keeper and extends across the bore thereof; spring 28 acting between abutment 29 and nose piece 19 in a manner normally to thrust the bolt to extended position, as in Figs. 2 and 6. Plate 29 is of such width that it is taken between arms 24 so it will not form an obstruction against the stroking of the bolt. When the bolt andits housing are disassembled from the throwing spindle, hooks 25 engage the abutment plate to limit the movement of the bolt in its spring-urged direction through the housing 15, the bolt and housing thus beingmaintained in assembly.

Furthermore, when the bolt is moved against the action of the spring to such a position that plate 29 extends between arms 24, said plate v and arms coact in a manner to prevent positively other Athan a very limited amount of relative rotation between the bolt and housing.

While any suitable means may be employed for detachably holding abutment 29 in position, the illustrated type of attachment is preferable and is the subject matter of certain claims of a patent granted to me on mortise catches, No. 1,106,760, August 11, 1914. One end of plate 29 is provided with a central projection 30, while the opposite end has furcations 31. Furcations 31 are adapted to extend through suitable apertures in housing 15, while projection 30 extends through an opening 32 in the housing. Adj aanl cent to openmg 32 is a tongue 33 which is first pressed outwardly to allow projection 30 to be inserted through said opening 32 from Within the tube (plate 29 having een thrust longitudinally through the tube in At the left of abutment 29, as viewed in Fig. 6, the opposite walls of housing 15 are apertured at 34, said apertures being in line with holes 15a when housing 15 is in place within bore 15a. Apertures 34 and bores 15a are of sufficient diameter to admit the passage of bolt throwing spindle therethrough, ample clearance being left to insure that all elements on the peripheral face of the spindle may pass freely through said apertures and bores. However, the spindle may be considered as having spaced bearing in the wall of housing 15, since the clearances and thickness dimensions of the tubes are exaggerated in the drawings in order to avoid confusion.

Intermediate its ends, tubular spindle 35 is cut away or notched at 36 suiiiciently to accommodate hooks 25, there being left only `a small section 37 of the spindle as a connecting bar vbetween the two spindle ends. Connecting portion 37 may be considered as the throwing bar of the spindle. With the bar thus formed, it will be seen that when the spindle is rotated, the diameter of the path of circumferential movement of the bar is no greater than that of the spindle itself, a feature of decided advantage since it holds the over-all diameter of the assembly to a minimum.

After the bolt assembly has been positioned i within the door, bolt 18 is manually thrust to the left, as shown in Fig. 7, until hooks 25 clear apertures 34. vSpindle 35 is then thrust longitudinally through bores 15aA and apertures 34 until opening 36 is inline with hooks 25. Thereupon manual pressure is relieved from the bolt, spring 28 acting to throw the bolt to the right and into' the position of 6,-th'is longitudinal movement of the bolt being limited by the engagement of hooks 25 with bars 37. As the defining edges 36" of notch 36 form shoulders which are normal to the spindle axis and the tongues 25 are of `substantially the same width as the notch,

shoulders 36" and the opposing shoulders 25" on tongues 25 cooperate to hold the spindle against subsequent appreciable movement in the direction of its axis. Since bar 37 is radially spaced or offset from the axis of rotation of spindle 35, angular movement of said spindle from the position of Fig. 6 tends to retract the bolt against the action of spring 28 (Fig. 8) to withdraw* nose 19 from catchplate 13.

It will be noted that spindles 35 may be considered broadly as extending through the bolt and beyond opposite sides thereof, for it has been made apparent that arms 24 and hooks 25 may be considered a part ofthe bolt and they, in effect, define a hole through the bolt and taking the spindle.

Preferably, there are providedfon the peripheral face of spindle 35, at opposite sides of opening 36, lugs or shoulders 38. These lugs may each be formed by pressing a tongue ofthe metal voutwardly and then bending it upon itself, as clearly shown in Fig. 2. Lugs 38 are so located that they contact with shoulders 26 when the bolt is in full retracted position, and by this coaction between lugs and shoulders, further angular movement of the spindle in the given direction is prevented; otherwise, angular movement of the spindle might be continued with the result that bar 37 would be returned to normal position and spring 28 would extend the bolt before such extension was intended. When spindle 35 is subsequently released, spring 28 extends the bolt, hooks 25 acting against bar 37 to return the spindle to normal.

ln certain instances, it is desirable that the lock be used as a night latch, that is, it is to remain inoperative for protracted periods and only thrown into operat-ion during certain hours. capability of being maintained in inoperative position, it may be made in accordance with the modification shown in Fig. 9. In this modification lugs 38 are omitted from spindle 35" so said spindle may be rotated through 360". By rotating the spindle 180 from its normal position (that is, with the bolt fully extended,) the bolt is fully retracted to the position of Fig. 9, and when the operators hand is released from the throwing spindle, throwing bar 37a serves to maintain the bolt in retracted position, since said bar is then in direct line with the longitudinal axis of the bolt. Bar 37a may be slightly flattened at 37b where it is engaged by hooks 25, in order that there may be no likelihood of the throwing spindle being jarred or otherwise accidentally returned to normal and bolt 18 consequently being returned to extended position under the action of spring 28. However, when it is desired to extend the bolt, it is only necessary that the operator rotate spindle 35b slightly until bar 37 a is out of line with the longitudinal axis of the bolt, whereupon spring 28 is free to extend the bolt, hooks 25 acting against bar 37a to return the throwing spindle to normal.

y While any suitable type of escutcheon plate outer face of the door is provided with atubular extension 44a. Spindle 35 is threaded `at 45 to take the hubs 46 of knobs 47. Set

screws 48 in hubs 46 are adapted to hold the knobs in adjusted position along the spindle. Before spindle 35 is thrust into assembly with bolt mechanism A, the knob which is to be at the outside of the door is threaded on the spindle and screws 48 are set. These screws Whenthe lock is to have this are so located that when the spindle is fully assembled with the bolt mechanism, they will lie within tubular extension 4411, this extension then preventing the screws from being removed, either through accident or malicious intent. 'I heknob on the inner face of the door is then threaded on the spindle and set by'its screws 48. A friction tight keeper ring 49 is then moved along the hub of the inner knob and over its set screws to prevent them from backing out.

I will now describe the releasable means for locking bolt 18 in extended position. Generally, this comprises a member provided within spindle which is movable to and lfrom a position behind hooks 25 (and hence, in effect behind bolt 18) when the bolt is in extended position. It lies within the scope of Mmy broader claims to provide a locking member which is movable in any desired manner into its locking position, but as a preferred type of locking member I have illustrated a plunger 50 which is mounted for longitudinal reciprocation within the bore of spindle 35, I have illustrated spring means formaintaining this locking member normally in retracted or inoperative position, and I have shown several different types of actuating and control means whereby the locking member is moved to extended or operative position. It will be understood that my claims, except when they expressly so specify, are not limited to any particular type of means for shifting the locking member. It will also be understood thatv the several types of locking member actuating means need not be combined in the precise manner shown.- For instance, both ends of the locking spindle may be equipped with the same type of actuating members, 0r only one end of the spindle may be provided with an actuating member.

In order that certain auxiliary mechanism may be more easily applied to the locking member, I prefer to make this member in the form of a -t-ubular plunger, but it will be understood that the invention, considered in its broader aspects, is not limited to a plunger of this type.

I will first describethe locking memberA shown in Figs. 2to 14, inclusive, this type of mechanism being an extremely simple one and consequently particularly well adapted for use in comparativelycheap installations. The locking member is thrown to extended or operative position by rotation of keys provided at opposite ends of the throwing spindle,the key on the outside of the door preferably, of course, being a removable one. Extending from-'side to side of spindle 35 are `spaced pins 51, these pins extending. through limit slots 52 in member 50. The pins 51 thus serve to hold member 50 against rotation andl limit the retractive movement of the'locking pins 51 and abutment 54 secured within tube 50 serving to hold member 50 normally and yieldingly in retracted position. When thus retracted,the end 55 of tube 50 is out of line with hooks 25, these hooks then being capable of reciprocation with bolt 18 to allow said bolt to be moved from extended to retracted position or vice versa. It is desirable that tube 50 have a fairly close fit within spindle 35, for obvious reasons, and, therefore, it is necessary that where end 55 is adapted to be projected across opening 36 that said end be cut back as at (F ig. 2) in order to clear hooks 25. It will be evident that when member 50 is moved against the action of spring 53, by means to be described immediately, to bring end 55 behind hooks 25 that bolt 18 may notv thereafter be moved to retracted position nor may spindle 35 be rotated. The end of mem-V ber 50 is inclined as at 57, the end 58 of an actuating member 59 being complementarily inclined and, when member 50 is in retracted position, cam faces 57 and 58 are in substantially full engagement, as show-n in Fig. 10. f

Member 59 is in the form of a short, tubular cylinder, its end 60'being closed except for apertures 61 which are adapted to take the end projections 62 on key 63. Actuating cam 59 is confined between member 50 and cylinder 64, the latter being fixed rigidly within lthe action of spring 53 and into the position of Fig. 14. This movement of member 50 projects end 55 across opening 36 and back. of hooks 25, thereby preventing subsequent rotation of spindle y35 and retractive movement of hooks 25xand bolt 18.

By rotating the key through 180 the points of cams 57 and 58 are brought intoopposi-V tion as shown in Fig.l 14, so, when keyf63 is 'subsequently removed, member 50 will be maintained in its locking position against" the action of spring 53. Preferably, the point of one cam is adapted to seat in a recess in the point of the other cam to insure that members 50 and 59 be not accidently returned to normal. For instance, the slightly rounded end 58@l of cam 58 may seat in recess 57a of cam 57 (Fig. 14?).

When the door is to be unlocked, ke'y 63 is reinserted and turned through 180 in either direction, this movement returning actuating member 59 to normal position as shown in Fig. 10, and allowingspring 53 to return member 50 to retracted positlon and out of the lpath of the bolt hooks.

In order that member 50 may be actuated yfrom theother end of spindle 35, I provide it with an internal stem or rod 67 which is adapted to extend through spindle and through cap 68 secured at the inner end of the spindle. Exteriorly of cap 68, rod 67 is provided with a key or knob 69. It will be seen that member 5() may be thrown to and from locking position by rotation of ke 69 in a manner exactly similar to that described in connection with `its operation by key 63. Of course, the locking member may be thrown to extended position from either end of the spindle and released for retraction by spring 53 by proper movement of the key at the opposite end of the spindle. It will be seen that due to the spacing of the ends of hooks 25, as previously described, rod 67 does not interfere with the assembly or disassembly of` the spindle and the bolt mechanism; for referring to Figs. 6 and 7 it will be seen that the bolt may pass to and fro from limit to limit without causing hooks 25 to engage rod 67.

I will now describe a locking mechanism adapted particularly for use where a pin-tumbler lock cylinder is to be used, though not limited to such use. As will hereinafter be made apparent, the lock cylindermay be employed as the actuating member for moving the locking member to extended or operative position, a longitudinal thrust being exerted upon said cylinder forso moving the locking member. lAccording to the type of lock employed, as will hereinafter be made evident, it may or may not require the application of a key to secure suchendwise movement of the lock cylinder. But in any event it requires the application of the key to the cylinder before the locking member may be returned from extended to retracted position. The means for throwing the locking member to extended position from the opposite end of Vthe spindle may also be of the push and pull type, and the' means at said op osite end of the spindle for releasing the loc 'ng member so its retracting spring may. function, may be of the twist or reciprocatory type.

' I prefer to provide automatically latching means lfor releasably holding the locking member in extended or operative position, and a part of this latching mechanism may be femployed as a part of the means for throwing the locking member to extended position from the end of the spindle which is opposite to the end equipped with the pin tumbler lock.

Referring now to Figs. 15 to 21, inclusive,

I have shown an assembly similar to that previously described as regards bolt assembly .A and spindle 35, except that the spindle 35el shown in these figures is cut somewhat shorter at one end. Locking member is generally similar to locking member 50, having' the same type of pin and slot connection 51, 52a;

cut off end 55,and spring 53B acting between ing pins 51a and closed end 59a and adapted normally and yieldingly Y to maintain locking member 50a 1n retracted position.

Extending through the end 591i and the bore of member 50a is a latch rod 67 A collar on rod 67 a engages the outer face of end 59a and the end 71 of rod 67a beyond this collar is of polygonal cross-section. Knob 72 includes a body member 73 having a hub 7 4 which is threaded on spindle 35a at 45a and set in position by screws 48a. Body 73 has a bore 75 and a key 7 6; Bushing 77 is mounted in bore 75 and has a key-way 7 8 coacting with key 76 to prevent relative rotation between body 73 and bushin shown, a set screw 9 is threaded through body 73 into bushing 77 to prevent relative longitudinal movement between the bushing and body member. However, when the lockA is adapted to be actuated in a manner somewhat different from that now to be described, screw 7 9 is removed in order to allow bush- 7 7 to have longitudinal movement through bore 75, thespline connection between bushing and body member still acting to prevent relative rotation. When the bushing is thus adapted to have longitudinal movement, spring 80, which is preferably of bushing and the inner end wall of bore 75 lthe conical, telescopmg type, between said acts yieldingly to'hold said bushing against ,end flange 81 of knob sleeve 82, the latterbeing removably secured to body 73 by Screw 83 andl having a knurled hand-grip 84.

However, when the lock is to be operated in the manner now to be described, set screw 79 holds the bushing rigidlylagainst longitudinal movement and spring 80 has no function. Bushing. 77 carriesthe usual tumblers 85 which are normally .urged by y springs 86 Vacross the parting'line between bushing 77 and cylinder C to prevent relative rotation and ,longitudinal movement between said bushing and cylinder. Usual key actuated pins 87 in cylinder C limit the downward movement of bushing pins 85. `The end of Y cylinder C is provided with a socket iece 88 having a socket 89 complementarily 1n cross l section to that of rod end 71, and it'may be stated at this time that the relative longitudi-y nal movement between socket 88 `and end -71 is definitely limited so that said end never becomes entirely disengaged from the socket,

piece.` Due to the polygonal cross section characteristics ofend 71 and socket 89, cyl\ rotation but are capable of relative longitu- -dinal movement.

. Latch rod 67 terminates in a hook 90,l

.This `hook is adapted to engage a keeper 91 when member 50 is thrust to extended Vpos'ition i'n the manner'to be described, and this keeper 91 as being mounted on a .movable 12o f inder C and rod 67a are held againstl relative plunger 92 which will later be described. in detail, but for the purposes of. describing the action of the locking mechamsm as brought about by actuation of the pin tumbler lock, keeper 91 may be consldered as stationary 4vwith respect to spindle 35a, and certain of my claims are of such breadth that they contemplate and cover such a rigid mounting of lug 91.l l

When the door is to be locked, key K is thrust into cylinder C to cleartumbler pms 85. Then the cylinder is thrust forwardly into the position of Fig. 19, the endwise movement of the cylinder causin coincldent endwise 4movementof latch ro 67a and locklng member 50. Rod 67 a has suilicientinherent spring to allow its terminal hook 90 to hook Fig. 21, key K may be removed since tumbler ins 85 and 87 are then in line. With the e thus removed, it will be seen that cylin er C is locked against both rotation and endwise movement, and that rod 67a holds member 50n in extended or operative locking position. v When the door is to be unlocked, key K is reinserted in the cylinder, clearing pins 85, and rotated either in clockwise or counterclockwise direction. Due to the connection betweeny socket piece 88 and nthe square end 71 of rod 67, rotation'of cylinder C causes coincident rotation of rod 67 n, this movement of the rod rotating hook 90 angularly clear of keeper lug 91. Thereupon, spring 53a acts immediately against the closed end 59a of member 50a and returns said locking member 50la to retracted. position. End 55a thus being cleared from the path of hooks 25, bolt 18 may subsequently be retracted by rotation of spindle 35a.

In certain instances it is desirable that the operator be able to lock the door without application of his key. Where such a conditlon is desirable, set screw 7 9 is removed so bushing 77 is capable of longitudinal movement within .body 7 3,- ,though held against rotation with respect to said body by the reviously described spline connection there tween. Spring 80 then acts normally and yieldingly to maintain bushing 77 and hence cylinder C in the position of Fig. 15'. When the door lis to be locked, manual pressure is exerted against the end of either cylinder C or of the bushing, and the bushing and cylinder assembly being moved as one y to the right against the action of spring 80 .(Flg. 22) to project locking member 50a into locking position. 'When the manual pressure is relieved from the bushing or cylinder, spring 80 returns the bushing and cylinder. assembly to the position of Fig. 15, latch hook 90 having engaged keeper 91, in the meantime, to hold member 50a in locking posltlon. Hook 90 is released from keeper 91 by application of the key to cylinder C and rotation thereof, as previously described.

I will now describe the preferred type of means for moving member 50u to latching position from the other end of spindle 35, and for releasing the locking member latch from said opposite end of the spindle, irrespective of which locking mechanism has been actuated to throw member 50a to locking position. Tubular plunger 92 is mounted for longitudinal reciprocation within the bore of spindle 35a and has an operating knob 94 on its outer extremity 95, which extremity projects well beyond the end of spindle 35a. A positioning pin 96 is secured to spindle 35a and extends across the bore thereof. Plunger 92 has diametrically opposed slots 97 through which pin 96 extends, these slots each having a reduced portion 98 at one 4end and an enlarged portion 99 at the other end, a cam face 100 extending between portions 98 and 99. The pin 96y is,

of course, adapted to limit the longitudinal movement of plunger 92 with respect to spindle 35, and spring 101 is interposed between the end flange 102 on the plunger and an abutment plate 103 secured to spindle 35a. This spring normallyv acts against lunger 92 to retain it yieldingly at the limit of its movement to the right as viewed in Fig. 16. in which position pin 96 is seated within the restricted portions 98 of slots 97 to hold the plunger against rotation with respect to the spindle. Keeper lug 91 extends inwardly from'the walls of tubular plunger 92, and is longitudinally spaced from end flange 102. When member 50a is in retracted position, hook 90 is disposed between lug 91 and flange 102. Spring 101 is of considerably greater eective strength than spring 53a so, when member 50a is projected to locking position, as previously described, and hook 90 is sprung over keeper 91, spring 101 is competent to holdy rod 67m and member 50a to the rlght against the action of spring 53a. Since plunger 92 is now held from rota-tion due to the coaction of pin 96 with the restricted portions 98 of slots 97, when rod 67 is subsequently rotated by actuation of key K, there is no danger of the frictional engagementbetween hook 90 and keeper 91 setting up coincident rotation of plunger 92, and.

therefore, it is assured that such rotation of rod 67a will clear hook 90 from keeper 91.

Should member 50a be in operative locklng position with hook 90 engaging keeper lug 91 to maintain it in this position, and it be'desired to release said hook from the inside of the door, manual pressure is first exerted bring the enlarged portions 99 of slots 97 into register with pin 96, plunger 92 is rotated y to the left, as viewed in Fig. 18, by manual rotation of yknob 94. This rotation of the plunger moves keeper lug 91 out of engagement with hook 90, so, when pressure is relieved from knob 94, spring 101 acts to return plunger 92 to the normal position of Fig. 16 without causing a coincident return of rod 67 As spring 101 thus returns the plunger 92 to the right, as viewed in Fig. 16, cam face 100 engages pin 96 so plunger 92 is rotated back to normal position as well as moving longitudinally, the extent of slots 97 being sutlicient to insure that cam face 100 does not rotate lug 91 beneath hook 90 at the start of the return stroke of the plunger.

' Assuming thatthe lug is in the condition of Fig. 16 and that it be desired to project member 50a into operative locking position by manipulation of knob 94, this knob is :thrust straight in, (Fig. 23) moving plunger 92 to the left, the engagement of lug 91 with hook 90 springing rod 67 to allow said hook to engage behind said lug. Then when pressure on knob 94 is relieved, spring 101 acts to return plunger 92 to its normal position, lug 91 acting against hook 90 to draw rod 67 a and lmember' 50a into locking position, it being remembered that spring 101 is of sufyiciently greater strength thanspring 53a to cause such movement. The locking member may subsequently be released so spring 53"1 may return it to normal position by operation either of-cylinder C or plunger 92, as described above. It will be noted that in this l' assembly rod 67a acts both as a connector between plunger 92 and member 508L for moving said member to locking position, and as a latch member for holding the locking member in locking or extended position. p

. Inv the assembly above described, it will be seen that from the inside of the door, locking'is effected by thrusting a plunger endwise and then releasing itto allow an` operating spring to act indirectly against the locking member, and that unlocking is effected by thrusting inwardly against the same plunger and then rot-ating it. I will now describe a mechanism wherein locking from the inside of the door is e'ected in the same manner, but unlockingfrom thatv side of the door is e'ected by manipulation of a second plunger. For this purpose, attention is directed to Figs. 24 and 25. Plunger 92a and keeper lug 91a thereon, are similar to plunger 92 and lock ,91, respectively, except that the slots 97a through which the spindle carried pin 96 extends, are of 'uniform width -er 92". The end 105 of plunger 92a is open so release plungerl 106 lmay extend therethrough. Plungerf'106 has slots 107 to take the pin 96, and its?y exposed end may carry a key or operating knob 108. The opposite end of release plunger 106 has an upturned release cam 107a which also provides an anchor for one end of spring 109. The opposite end of this spring is secured to pin 96, the spring thus act-ing normally to hold plunger 106 yieldingly at the end of its stroke to the right, as viewed in Figs. 24 and 25, and as determined by the coaction of pin 96 with the end walls of slots 107.

When it is desired to lock the door from the inside, knob 94a is thrust inwardly to carry .keeper 91*L beneath hook 90, as described above in connection with Fig. 16, and then released to allow spring 101 to thrust plunger 92a back to normal, and, through the coaction between hook 90 and lug 91a, to draw rod 67a and member 50a into the position of Fig. 19. When it is desired to release member 50a, plunger 106 is thrust inwardly, spring 109 yielding lengthwise to allow this movement, until cam 107a engages beneath cam face 90b on 'hook 9,0, -further movement of the release plunger causing cam 107 to lift hook 90 from keeper lug 91a, whereupon spring 53 acts to return locking member 50a to retracted position. As soon as manual pressure is relieved from knob 108, spring 109 returns release plunger 106 to normal position.

' It will be understood the drawings and description are to be considered merely as illustrativev of and not -restrictive on the broader claims appended hereto, for various changes in design, structure and arrangement. may be made without departing from the spirit.and scope of said claims.

I claim:

1. In a lock, a bolt adapted to be reciprocated longitudinally to and from extended position, means for retracting the bolt and including a tubular rotary spindle arranged substantially axially perpendicular to the bolt and operatively connected thereto, and a. locking member within and movable longitudinally through the bore of the spindle into and out of locking engagement with the bolt when said bolt is extended and adapted, when in such engagement, to h old said bolt against retractive movement, and selectively operable means at oppositeends of the spindle for moving the locking member into locking engagement.

.2. In a lock that includes a bolt adapted to be moved from extended to retracted position by rot-ation of a tubular spindle that is operatively connected thereto, releasable means I ed Within the tube bore for reciprocation longitudinally into and out of locking position, spring means adapted normally to urge and hold the member out of locking position, and means operable from the end of the spindle for moving said locking member into locking position against the action of said spring means. v

3. In a lock that includes a bolt adapted to be moved from extended to retracted position by rotation of a tubular spindle that is operatively connected thereto, releasable means for holding said bolt against retractive movement that includes a locking member mounted Within the tube bore for reciprocation longitudinally into and out of lockL ing position, spring means adapted normallyA to urge and hold the member out of locking position, andkey-controlled means operable from the end of the spindle for moving said llocking member into locking position against the action of said spring means.

4. In aI lock that includes a bolt adapted to be moved from extended to retracted position by'rotation of a tubular spindle that is operatively connected thereto, releasable means for holding said bolt against retractive movementthat includes a'locking member mounted Within the tube bore for reciproca-l tion longitudinally into and out of locking position, spring means adapted normally to hold the member out of locking position, and y.

means operable from either end of the spindle for moving said locking member into lockingposition against the. action of said spring means. l

5. In a lock that includes a bolt adapted to be moved from extended to retracted position by rotation of a tubular spindle that is operatively connected thereto, releasable means for holding said bolt against retractive movement that includes a locking member mounted within the tube bore for reciprocation longitudinally into and out of locking position, spring means adapted normally to urge and hold the member out of locking position, means operable from the end of. the spindle for moving said locking member into locking position against the action of said spring means, and releasable means adapted to hold said member in locking position.

6. In a lock that includes a bolt adapted to be moved from extended to retracted position by rotation of a tubular spindle that is operatively connected thereto, releasable means for holding said bolt against retractive movey ment that includes a locking member mounted Within the tube bore "for reciprocation longitudinally into and out ,of locking position, spring means adapted normally-to urge means, releasable means adapted to hold said member in locking position, and means operable'from the end-ofthe spindle adapted to be actuated to release said holding means.

7. In a lock that includes a bolt adapted to be moved fromextended to retracted osition by rotation of atubular spindle t at is operatively connected thereto, releasable means for holding said bolt against retractive movement that includes a locking member mounted Within the tube bore for reciprocation longitudinally into and out of locking position, sprin means adapted normally to urge and hold t e member out of locking position, means operable from the end of the spindle for moving said locking member into ,locking position against the action of said spring means, releasable means adapted to hold said member in locking position, and key-controlled means operable from the end of the spindle adapted to be actuated to release said holding means.

8. In a lock that includes a bolt adapted to bel moved from extended to retracted position by rotation of a tubular spindle thatl is operatively connected thereto, releasable means for holding said bolt against retractive movement that lncludes a locking member mounted Within the tube bore for reciprocation longitudinally into and out of locking position, spring means adapted normally to urge and hold the member out of locking position, means operable from the end of the spindle for movingsaid locking member into llocking position against the action ot said spring'means, and releasable means for holding the locking memberI in locking position and including a latch member supported by the spindle, and a latch member supported by the locking member, said latch members bein adapted to engage operatively when the ocking member is moved to locking position. f

9. In a lock that includes a bolt adapted to be moved Jfrom extended to retracted position by rotation of a tubular spindle that is opllO eratively connectedy thereto, releasable means for holding said bolt against retractive move- 'ment that includes a llocking member mounted Within the tube bore for reciprocation longitudinally into and out of locking position, spring means adapted normally to urge and hold the member out of locking position, means operable from the end of the spindle for moving said locking member into locking position against the antion oi' said spring means, releasable means for holding the locking member in locking position and including a latch member supported by the spindle, and

a latch member supported by the locking member, said latch members being adapted to engage operatively when the locking member is-moved to locking position, and `.means ian operable vfrom the end of the spindle for disf engaging said latch members.

vv10. In a lock that includes a bolt adapted urgeA and .holdthe memberout of locking tion longitudinally into and out of locking position, spring means adapted normally to P sition, means operable from the end o the the locking memberin locking position and including a latch member supported by the spindle, and alatch membersupported by the locking member, said latch members being adapted to engage operatively when the locking member is moved to locking position, and key-controlled means operable from the end of the spindle for disengaging said latch members.

11.- In combination with a door, a lock embodylng a tubular bolt housing extending in- -.vvardly from the edge ofthe door, a bolt adapted to be reciprocated; longitudinally through the housing, said housing having dilametrica-lly opposite side openings in registration with side openings extending inward- `ly from the side faces 'of the door, a tubular bolt-throwing spindle having bolt-locking means Within its bore, said spindle with Vits locking means being movable bodily longitudinally through said side openings .1nto operative association with the bolt both as regards its bolt-throwing and bolt-lockingfunctions, and shoulders on the spindle and bolt, which shoulders are in opposition when said spindle and bolt are in such operative association,

the shoulders on said spindle being normal to the spindleaxis, the shoulders on the spindle and bolt thereafter cooperating to hold the i i spindle against appreciable movement in the f direction of its axis.

to be moved from extended to retracted po- 12. in a lock that includes a bolt adapted sition by rotation of a tubular spindle that \is operatively connected thereto, releasable means for holding said bolt against retractive movement 'that includes a locking member mounted within the tube bore for reciprocation longitudinally into and out of locking position, sprin means adapted normally to hold the mem er out of locking position, ,and a key-controlled actuating member operable from the'end of the spindle and movable longitudinallyin one direction to move the locking member into locking position against the action of the spring means and beingthen moved longitudinall in the other direction without moving the ocking member from its locking position.

13. In a lock that includes a bolt adapted to be moved from extended to retracted-position by rotation of a'tubular spindle that means for holdin said bolt against retractive 'movement that includes a lock-ing member mounted within the tube bore for reciprocation longitudinallyl into and out of locking position, spring means adapted normally to urge and hold the member out of' locking position, an actuating member operable from the end of the spindle and movable both longitudinally and rotatably therethrough, said actuating member being movable longitudinally in one direction to move the locking member into locking position, and means adapted to hold the locking member releasably in locking position; said actuating member being thereafter rotatable to release said holdin means.

14. n a lock that includes a bolt adapted to be moved from extended to retracted-position by rotation of a tubularspindle that is operatively connected thereto, releasable means for holding said bolt a ainst retracti-vefmovenfent that includes a` ocking member mounted within the tube bore for reci rocation longitudinally into and out of loc ing position, spring means adapted normally to hold the member out of locking position, an actuating member operable Ifrom the end of the spindle and movable both longitudinally and rotatably, said actuating member being movable longitudinallyv in one direction to move the body member into locking position, means adapted to hold the locking member releasably in locking position, said actuating member being thereafter rotatable to release said holding means, and key controlled means releasably holding said actuating member against rotation.

15. In a lock that includes a bolt adapted to be moved from extended to retracted position by rotation of a tubular spindle that is operatively connected thereto, releasable means for holding said bolt against retractive movement that includes a 'locking mem.- ber mounted Within the tube bore for reciprocation longitudinally into and out of locking position, spring means adapted normally 4 to hold the member out of locking position, and a key-controlled lock cylinder movable bodily longitudinally in the direction of the spindle axis to move the Alocking member into locking position against the action of said spring means.

16. ln a lock, a rocated to and fromextended position, means bolt adapted to be recipthe bore of the spindle into and out oflock-l Y mg engagement with the bolt when said b'olt is extended, andadapted, Whenin .suchl engagement, to 'hold said bolt again'steective within and movable longitudinally through 1251,

retraction, and selectivelyand n dependentlyf v *1.30"*

movable means at opposite ends of the spindle for moving the locking member into such locking engagement.

17. In a lock that includes a bolt adapted to be moved from extended to retracted position by rotation of a tubular spindle that is operatively connected thereto, releasable means for holding said bolt against retractive movement that includes a locking member mounted Within the tube bore for reciprocation longitudinally into and out of locking position, a spring means adapted normally to urge and hold the member out of locking position, and means operable from either end of the spindle for moving said locking member into locking position against the action of said spring means.

18. In a lock that includes a bolt adapted to be moved from extended to retracted position by rotation of a tubular spindle that is operatively connected thereto, releasable means for holding said bolt against retractive movement that includes a locking member mounted Within the tube bore for reciprocation longitudinally/.into and out of locking position, a spring means adapted normally to hold the member out of locking position, and selectively operable and independently movable means at opposite ends I of the spindle for moving the locking member into and out of locking position.

19. In a lock, a bolt adapted to be reciprocated to and from extended position, means for retracting the bolt and including a tubular rotary spindle arranged substantially axially perpendicular to the bolt and operatively connected thereto, a locking member Within and movable longitudinally through the spindle bore into and out of locking positionwhen the bolt is extended and adapted, When in such position, to hold said bolt against eiective retraction, `and a key-controlled member movable in substantial parallelism with the .spindle axis and effective y such movement in one direction,4to move saidl locking member into locking position and being thereafter movable in the opposite direction without moving said locking member out of locking position.

20. In a lock, a bolt adapted to be reciprocated to and from extended position, means for retractin the bolt and including a tubular rotary spindle arranged substantially axially perpendicular to the bolt and operatively connected thereto, a locking member Within and movable longitudinally v through the spindle bore into and out of locking position when the bolt is extended and a apted, when in such position, to hold said bolt against effective retraction, andav rotatable key-controlled member movablein substantial parallelism Withthe spindle axis and effective, by such movement in one directi'on, to move said locking'member into locking position and being thereafter movable in the opposite direction without movl ing said locking member out of locking posi- .tion; said key-controlled member being fur-

Images