US2072083A - Casement window operating means - Google Patents

Description

L L E B P M A C E. H.

CASEMEN WINDOW OPERATING MEANS Filed April 50, 1956 INVENTOR #4e/@y i 64M/ 255g Patented Mar. 2, 1937 UNITED STATES PATET OFFICE CASEMENT WINDOW OPERATING MEANS Application April 30,

13 Claims.

The general object of the present invention is to provide improved means for adjusting a casement window into, and maintaining it in difierent positions.

5 A more specific object of the present invention is to provide a Casement window arrangement in which the window sash is biased for movement from its fully closed position into its wide open position, and may be adjusted into, and

l held in, dierent open positions, and may be locked in its closed position, by manual adjustments given the inner end portion of a flexible operating element connected at one end to the sash and extending from the latter to the inner l side of the casing, and cooperating with means carried by the casing, and including parts through which the said adjustments of said element lock the sash to, or unlock it from the casing, when the sash is in its closed position, and,

when the sash is in an open position, cause saidelement to be either gripped at one or another point along its length or released, and thereby hold the sash in one or another open position, or permit opening and closing movements of the sash.

In a preferred embodiment of the invention, the sash is given its bias for opening movement by spring hinge connections between the sash and the window casing, and the flexible operating connection through the vnndow sash is a light pull chain, and the cooperating means carried by the casing includes a member which is pivoted to the casing and is formed with a guide passage for the exible element,

and is adapted to be given pivotal movements by lateral adjustments of the portion of the element at the inner end of said guide passage. The said pivoted member is provided with a locking hook moved by the pivotal movements of 4o said member into and out of locking engagement with the sash when the latter is in its closed position. In the specic form of the invention illustrated and described, in detail herein, when the sash is out of its fully closed position, pivotal movements of the said pivoted member move said element into and out of engagement with the stationary walls of a slot which is adapted to receive a link of the chain but is too narrow to permit longitudinal movement of the chain through the slot.

' The various features of novelty which characterize my invention are pointed out with particularity in the claims annexed to and forming a part of this specification. For a better under- I standing of the invention, however, its advan- 1936, serial No. 77,114

tages and specic objects attained with its use, reference should be had to the accompanying drawing and descriptive matter in which I have illustrated and described preferred embodiments of the invention.

Of the drawing:

Fig. 1 is an elevation of a easement window construction as seen from its inner side;

Fig. 2 is a horizontal section on the broken line 2-2 of Fig. l;

Fig. 3 is a partial section on the line 3-3 of Fig. 1;

Fig. 4 is a perspective view of a chain guiding and holding and window locking element of the construction shown in Figs. 1, 2 and 3;

Fig. 5 is a fragmentary elevation of a portion of the. window casing and sash construction shown in Fig. 1, and taken at right angles to that iigure;

Fig. 6 is a partial section on the line 6--6 of Fig. 3; and

Fig. 7 is a side elevation of a portion of a modied form of the element shown in Fig. 4.

The window construction shown in the drawing comprises a metallic window casing element I adapted for inclusion in a building wall, and in the form of a rectangular frame surrounding a rectangular window opening adapted to be closed by a lmetallic window sash member 2, which is hinge connected to the casing frame I at one side of the latter. As shown in Fig. 2, the casing frame is of Z bar cross section, comprising inner and outer parallel flange or rib portions 3 and 4 connected by a transverse web portion 5. `The sash 2 comprises a marginal frame portion of similar cross section, and in the closed position of the sash, its inner and outer frame flanges 6 and 'I abut against the casing flanges 3 and 4 respectively, with the transverse sash web 8 alongside and spaced some distance away from the casing web portion 4. As shown, the sash comprises central vertical and horizontal bar portions 9` and lil, respectively, which in conjunction with the sash frame, provides seats for four glass panes I I. The latter may be anchored against their seats in any usual or suitable manner which need. not be illustrated or described herein, as the invention is not concerned with the mounting of the window panes, or with the shape or number of the latter.

The window sash 2 is hinged at one side to the corresponding side of the window casing by upper and lower hinge connections, each shown as comprising a bracket I2 welded or otherwise attached to, and projecting outwardly from, the outer flange 4 of the casing, a generally similar bracket part I3 welded or otherwise attached to the outer flange 1 of the window casing, and a bolt or analogous connection I4 between the two brackets and serving as a hinge pintle. Each hinge connection includes a spring I5 shown as comprising a body portion of spring wire coiled about the hinge pintle, and tangential end extensions I6 and II. The extension I9 passes through an opening formed for the purpose in a lug or projection I8 from the adjacent side of the corresponding bracket I2. The other spring end extension II lies in the corner-space at the adjacent side of the bracket I3 and in front of a vertically extending flange portion I9 of the bracket part I3. The spring I5 is under tension tending to spread its end portions I6 and I1 apart, and thereby subjects the sash to a constantly acting spring opening force.

The exible window operating element 20 used in Eaccordance .with the present invention includes suitably short sections which can move laterally into the narrow portion of a keyhole slot alterhating with sections which are not longitudinally movable through said slot portion but which as well as the first mentioned sections are longitudinally ,movable through the large diameter portion of the slot.v Preferably, the element 2 0 is a. chain, andordinarily and as shown, is formed with sheet metal links. As shown, the chain 20 is connected to the sash at the free edge of the latter and about midway between the top and bottom of the sash, by means of Va hook or eye part 2|, having a threaded stem passing through the sash-flange 6, and held in -place by a nut 2l bearing against the outer side of the flange.

As shown, the chain y29 extends through, and is longitudinally movable in the upper portion .of a vertically elongated opening 22, formed in the casing iiange 3, the attachment part 2| being in register with the upper portion of the opening 22 when thesash is in itsclosed position. The chain 20 also extends through an opening formed in a metallic part 25 secured to the window casing flange `3, .at the front or room side .of the latter, of keyhole form, the last mentioned opening comprising a rounded upper portion 23 large enough `f or the free longitudinalmovement of the chain 2,0', and an elongated lower portion 24, which is wide enough to receive the shank or body por` tions of the chain links but is too narrow for the longitudinal movement of the enlarged ends of thechain links, as is plainly shown in Fig. 6. As shown, the part 25 comprises a bar-like body portion Vformed adjacent its ends with holes 2B for securing bolts passing through ,those holes and ythreaded intothe casing flange 3. At its front side), the member 25 is formed with lugs or ears 21, serving as hinge brackets or ears, apertured to receivel the ends of a pivot pin 28 on which is journaled a lever' member 29. The latter com- `'prises a flat blade portion or locking part 30 through which the pivot pin 28 extends and which is received between the ears 21, and extends through the keyhole opening portion 24, and opening 22. As shown, a portion of the member 29, in 'front of .the p art 25, is thicker than the blade portion 30 and comprises curved shoulders 3I in abutting relation with the rounded edges of the hinge ears 2l, and also comprises a tubular portion J32, extending transversely to the general direction oi the blade portion 39. The bore or passage 33 through the lever portion 32 is of a diameter .to Ypermit free longitudinal movement therethrough or the chain 20.

At its rear end, the blade portion 3U of the lever element, is provided with a lateral projection 34. The latter, in the locked condition of the window engages the rear side of a locking lug or projection 35, which is rigidly secured to the sash, and, as shown, is a projection from a bar-like part 31 screw connected to the sash web portion 8. In effect the blade 39 and its projection 34 form a sash locking hook portion of the member 29. The engaging surfaces of the cooperating locking parts of 34 and 35 are rounded and shaped to conjointly provide a camming, or wedging, action by which the sash ilanges 6 and I are pressed snugly against the casing iianges 3 and 4, respectively, when the sash fis locked in its closed position. In that condition, the shank of one of the chain links is received in the portion 24 of the keyhole opening.

To move the sash out of its fully closed and locked position, the lever member 29 is turned in the direction to move its portion 32 out of the depending position of the latter, shown in Fig. 4

the portion of .the chain 2D previously received in the narrow portion 24 of the keyhole opening through the part 25, into .the enlarged rounded upper portion 23 of that slot. With the lever 29 in position shown in dotted lines in Fig. 3, the sash is free to move in the opening direction under the action of its spring hinges, unless and except as such movement is prevented or reversed by force transmitted to the sash through the chain 20. Y

The sash may be secured in any open position into which it is moved as a result of the opposing actions of the spring hinges and the pull on the chain 2U, by turning the lever element 2,9 from its dotted line position into its full line position shown in Fig. 3. When the lever element is so turned into its full line position, the chain is moved laterally or downward out of the larger ,upper portion `2,3 into the narrowed lower portion 24 of the keyhole opening in the member 25. The window sash may thus be secured inany .open position in which one or another of the chain links has its shank or body portion received in the portion 24 of the key-hole slot.

The projection 36 from the part 25 isadapted for use in latching in kplace a window screen, not shown, and forms no part of the invention claimed herein. As shown, the lever member 29 is provided with a projection 38 engaging the member 35 and preventing over-movement of the lever member when the latter is turned from its dotted line vposition into its full line position of Fig. 3. In the normal position of the lever 29 shown in Fig. 4, the projection 38 closes the lower end of the slot portion 24 in the member 25, as is especially desirable because of the lateral en-r largement 24 of said slot portion at one side provided to accommodate the movement of the lever locking part 35 between its full and dotted line positions shown in Fig. 3, and in the assembly of the parts 25 and 29. As shown, also, the member 25 is formed with a recess 39 at its side adjacent the flange 6, which slidingly receives a bar-like part 49. The latter is gravitationally held in engagement with the chain 29 and closes the upper portion of the slot 22 when the lever member 29 is in its position shown in full lines in Fig. 3.

As Ywill be apparent to those skilled in the art, the sash locking and adjusting means shown are compact, simple in construction, positive in action, and easily operated. All necessary operative actions may be effected by forces applied by the hand of the operator to the portion of the chain projecting into the room through the passage 33 in the lever member 2S, since the lever member 29 may be readily turned between its full line and dotted line positions shown in Fig. 3, by force applied to the free end of the chain in the direction to bodily rotate the portion of the chain within the passage 33 about the axis of the pivot pin 28. By such lateral movements of the chain the latter is caused to engage and disengage the means provided to engage and hold the chain against longitudinal movement when the window is to be held in its diiierent open positions, said means, in the form shown, consisting of the portions of the part 25 which form the side walls of the portion 24 of the opening through the part 25.

Those skilled in the art will appreciate the advantages in construction simplicity, ease of operation, obtained by the single simple pivoted member, such as the lever 29, to positively lock the sash in its closed position, and to guide the chain element 20 in its longitudinal and lateral movements, and which may be given all necessary movements by forces applied to it through the operating chain element.

In Fig. 7, I have illustrated a modification of the construction shown in Fig. 4. The modiication shown in Fig. 7 includes parts 23a, 24a, 25a, 26a, 27e, 28e, 29a, 39a, 3N, 32a, 33a and 40e, corresponding respectively to the parts 23 to 33, and 40, of the construction. The lever 29a differs, mainly from the lever 2Q, only in the shape oi its shoulders Sie, and in the form of its locking part 34a; the latter, instead of being a lateral projection from the blade portion 3!)a of the lever, is a hook end extension of the blade portion lying between the planes of the sides of said portion. The sash carried locking projection 35a is elongated for engagement, as shown in Fig. 7, by the hook extension 3de. With the locking part arrangement shown in Fig. '.7, the slot portion 2s in the member 25a need be no wider than is required by the thickness of the blade portion 30e, and is lled by the latter in the position of the parts shown in Fig. 7 so that the covering function of the part 38 shown in Fig. 4 is not required, and the lever 2e includes no part like the part 38. Excess movement in the locking direction of the lever is prevented in the construction shown in Fig. 7, by the special shape given to the lever shoulders Sie, and the edges of the ears 2a engaged by those shoulders, when the parts are in the positions shown in Fig. 7. The lower portions of the shoulders 3|a are flat, as are corresponding portions 2lb of the edges of the ears 212L engaged by the at portions of the shoulders 3 la.

As shown, the outer face of the part 25a immediately below the rounded portion 23a of its keyhole slot, is recessed or indented at 27C to receive the rounded end of the chain link engaged by the edges of the slot portion 2lia when the sash is locked in an open or partly o-pen position. The notches 21C facilitate the locking of the chain element against longitudinal movement and may be provided in the construction of Fig. 4, as in that of Fig. 7.

The construction of Fig. 7 has certain practical advantages over that shown in Fig. e, particuu larly in that the lever 2TH is easier to make than the lever 21, though each form of lever may be cast and requires little machining. It is advantageous also that the lower end of the slot portion 2lia need not be laterally enlarged, as the slot portion 24 of Fig. 4 is enlarged for the passage of the lateral locking projection 34.

While in accordance with the provision of the statutes, I have illustrated and described the best form of embodiment of my invention now known to me, it will be apparent to those skilled in the art that changes may be made in the form of the apparatus disclosed without departing from the spirit of my invention as set forth in the appended claims and that in some cases certain features of my invention may be used to advantage without a corresponding use of other features.

Having now described :my invention, what I claim as new and desire to secure by Letters Patent, is:

1. In a casement window, a window casing, a window sash hinged to said casing. to turn between open and closed positions, means tending to turn said sash away from, and opposing its return to its closed position, a flexible window operating element connected at one end to said sash and extending therefrom to the inner side of the window, sash locking means mounted on said casing and rendered operative and inoperative by movements of a portion of said element at the inner side of the window in directions transverse to the length of said portion and adapted, when rendered operative, to pro-vide a locking connection between said casing and sash which is independent of said element, and means mounted on said casing for holding said element against longitudinal movement and adapted to be rendered operative and inoperative by said transverse movements of said element portion.

2. In a casement window, a window casing, a window sash hinged to said casing to turn between open and closed positions, means tending to turn said sash away from, and opposing its return to its closed position, a iiexible window operating element connected at one end to said sash and extending therefrom to the inner side of the window, a sash locking member pivotally mounted on said casing and comprising a guide passage through which said element extends and adapted to l,be moved between sash locking and unlocking positions by movements of the portion of sai-d element extending away from said passage at the inner side of said window in directions transverse to the length of said portion, and means actuated by said transverse movements of said portion to hold said element against. or release it to permit longitudinal movement of the element.

3. In a casement window, a window casing, a window sash hinged to said casing to turn between open and closed positions, means tending to turn said sash away from, and opposing its return to its closed position, a exible window operating element connected at one end to said sash and extending therefrom to the inner side of the window, a sash locking member pivotally mounted on said casing and comprising a portion including a guide passage through which said element extends and adapted to be moved between sash locking and unlocking positions by movements of the portion of said element extending away from said passage at the inner side of said window in directions transverse to the length of said portion, and casing carried means between said member and said sash portion adapted when in operative engagement with said element to hold the latter against longitudinal movement, and said element being adapted to be brought into and out of operative engagement with said means by the said transverse movements of said element portion.

4. In a casement window, a window casing, a window sash carrying a locking part and hinged to said casing to swing relatively thereto between its open and closed positions, means tending to move the window sash away from and opposing its return to its closed position, a exible window operating element connected at one end to said sash, a member pivotally mounted on the casing and formed with a guide passage for said element and with a locking part and adapted to be given said pivotal movements by lateral movements of the portion of said element extending away from the end of said passage remote from said sash, and means adapted to be rendered operative and inoperative to hold said element against longitudinal movement by the said lateral movements of said element portion.

5. In a casement window, a window casing, a window sash carrying a locking part and hinged to said casing to swing relatively thereto between its open and closed position, means tending to move the window sash away from and opposing its return to its closed position, a flexible window operating element connected at one end to said sash, element holding means carried by said casing, and a member pivotally mounted on the casing and formed with a guide passage for said element and with a locking part and adapted by its pivotal movements to move said element into and out of engagement with said holding means and, when said sash is in its closed position, to move its locking part into and out of operative engagement with the rst mentioned locking part.

6. In a casement window, a window casing, a window sash carrying a locking part and hinged to said casing to swing relatively thereto between its open and closed positions, means tending to move the window sash away from and opposing its return to its closed position, a flexible windowV operating element connected at one end to said sash, element holding means carried by said casing, and a member pivotally mounted on the casing and formed with a guide passage for said element and with a locking part and adapted by its pivotal movements to move said element into and out of engagement with said holding means and, when said sash is in its closed position, to move its locking part into and out of operative engagement with the first mentioned locking part, and adapted to be given said pivotal movements by lateral movements of the portion of said element extending away from the end of said passage remote from said sash.

7. In a casement window, a window casing, a sash carrying a locking part and hinged to said casing to swing relative thereto between open and closed positions, means tending to swing the sash away from, and opposing its return to its closed position, a flexible element connecting at one end to said sash and extending therefrom to the inner side of the window, and element guiding means, a movable locking part, and element holding means carried by said casing, said guiding means permitting free longitudinal movement of said element but restricting transverse movement of the portion of said element immediately adjacent said casing to a range between two predetermined positions of said portion and said movable locking part being moved into and out of operating engagement with the rst mentioned locking part, when said sash is in its closed position, by movement of said element portion between said two positions and said element holding means being rendered operative or inoperative to hold said element against longitudinal movement, when said sash is out of said closed position, by movements of said element portion between said two positions.

8. In a casement window, a window casing structure provided with an opening comprising portions of diiierent widths, a window sash, spring hinges connecting said sash to said casing structure and tending to move said sash to an open position, a flexible element connected at one end to said sash at a point thereof which is adjacent said opening when the sash is in its closed position, and extending through said opening and longitudinally movable through a wider portion of said opening and laterally movable into and out of a narrower portion of said opening and held against longitudinal movement when in the last mentioned portion by engagement with the walls thereof, and a lever mounted on said casing structure for angular movement into and out of locking engagement with the sash, when the latter is in its closed position, and by said movements moving said element between said narrower and wider portions of said opening.

9. In a casement window, a window casing formed with a keyhole opening, a member rigidly attached thereto and formed with an opening in register with the rst mentioned opening, a window sash, a spring hinge connection between said sash and casing at a side of the latter remote from said opening and tending to move said sash to an open position, a flexible element connected at one end to said sash at a point thereof adjacent said openings when the sash is in its closed position and extending through said openings and longitudinally movable through'a wider portion of the first mentioned opening and laterally movable between said portion and a narrower portion of the first mentioned opening and held against longitudinal movement when in said narrower opening portion by the walls thereof, and a lever pivotally mounted on said member for movement into and out of locking engagement with said sash and holding said element in said narrower or wider opening portions accordingly as said lever is in one angular position or another.

10. In a casement window, a window casing formed with an opening, a Window sash hinged to said casing at a side thereof remote from said opening to turn between open and closed position, means tending to turn said sash away from and opposing its return to its closed position, a flexible window operating element connected at one end to said sash and extending therefrom to the inner side of said window through said opening, a part detachably secured to said casing, a lever member pivotally mounted on said part and comprising a sash locking hook portion extending through said opening and provided with an element guideway at the inner side of the window which extends transversely to the axis of the pivotal mounting of said lever and being adapted to be turned into and out of locking engagement with the sash, when the latter is in its closed position, by lateral movements given the portion of said element extending away from said guideway at the inner side of the window, and means adapted to be rendered operative or inoperative by the said lateral movements for holding said element against longitudinal movements.

11. In a casement window, a window casing formed with an opening, a window sash hinged to said casing at a side thereof remote from said opening to turn between open and closed position, means tending to turn said sash away from and opposing its return to its closed position, a flexible window operating element connected at one end to said sash and extending therefrom to the inner side of said window through said opening, a part detachably secured to said casing and formed with a keyhole slot opening comprising an elongated lower portion and an enlarged upper portion, a lever member pivotally mounted on said part and comprising a blade like portion terminating at its end in a sash locking hook, said blade-like portion extending through said lower portion of said keyhole slot opening and through said casing opening, said lever member being provided with an element guideway at the inner side of the window, which extends transversely to the axis of the pivotal mounting of said lever, and said lever member being adapted to be turned into and out of the position in which said hook is in locking engagement with the sash, when the latter is in its closed position, by lateral movements given the portion of said element extending away from said guideway at the inner side of the window, and means adapted to be rendered operative or inoperative by the said lateral movements for holding said element against longitudinal movements.

12. In a easement window, a window casing formed with an opening, a window sash hinged to said casing at a side thereof remote from said opening to turn between open and closed position, means tending to turn said sash away from and opposing its return to its closed position, a iiexible window operating element connected at one end to said sash and extending therefrom to the inner side of said window through said opening, a part detachably secured to said casing, and formed with a slot in register with said opening and formed at its inner side with ears at opposite sides of said slot, a lever member extending between and pivotally mounted in said ears and comprising a sash locking hook portion extending through said opening, and provided with an element guideway at the inner side of the window which extends transversely to the axis of the pivotal mounting of said lever and being adapted to be turned into and out of locking engagement with the sash when the latter is in its closed position by lateral movements given the portion of said element extending away from said lguideway at the inner side of the window, said ears being edge surfaces and said lever member having shoulders adapted to engage said surfaces and thereby limit the pivotal movement of said member in the sash locking direction, and means adapted to be rendered operative or inoperative by the said lateral movements for holding said element against longitudinal movements.

13. in a easement window, a window casing formed with an opening, a window sash hin-ged to said casing at a side thereof remote from said opening to turn between open and closed position, means tending to turn said sash away from and opposing its return to its closed position, a window operating chain connected at one end to said sash and extending therefrom to the inner side of said window through said opening, a part detachably secured to said casing and formed with a keyhole slot in register with said sash opening through which said chain extends, and a lever member pivotally mounted on said part and comprising a sash locking hook portion extending through the lower portion of said slot through said opening and provided with a guideway for said chain at the inner side of the window which extends transversely to the axis of the pivotal mounting of said lever, said member being adapted to be turned into and out of locking engagement with the sash, when the latter is in its closed position, by lateral movements given the portion of said chain extending away from said guideway at the inner side of the window, and being adapted by said movements to move a portion of said chain, between said guideway and sash, between positions respectively in the enlarged and narrow portions of said slot, the narrower portion of said slot being wide enough to receive the body portions of the chain links but too narrow for the longitudinal movement therethrough of the connecting portions of adjacent links, said part being formed at its inner side with a recess adapted to form a seat for the end of the chain link at the inner side of and connected to a link having its body portion received in the narrower portion of said slot.

HARRY E. CAMPBELL.

Images