US2209021A - Bibb seating tool - Google Patents

Description

Jul 23, 1940.

R. G. HAWKER BIBB SEATING TOOL Original Filed Sept. 6, 1935 90 public.

Patented July 23, 1940 v UNITED. STATES BIBB SEATING TOOL Roland G. Hawker, Burlington, Vt.

I Original application September 6, 1935, Serial No. 39,589. Divided and this application January 19, 1938, Serial N0. 185,782

10 Claims (01. 90-125) This invention relates to valve tools which are particularly adapted for renewing the seating surfaces of ball cock valves and analogous constructions and performing various operations on valve closures. This is a division of my copending application Serial No. 39,589, filed September 6, 1935.

The present tool is applicable to a wide range of sizes of valves, with which it is detachably engageable by means of a universal mounting or an adapter therefor. Such mounting'forms a guide fora revoluble cutter or other tool supporting shaft, and includes manually adjustable means for positively feeding the shaft and cutter, orother tool carried thereby axially independently of its rotation.

Ball cock type valves have presented a problem of long standing without anyone ever producing a reseating tool that has been acceptable to the The valve seat is oftentimesobscurely positioned, or the surrounding fixtures are such that they cannot be engaged successfully by adapters now on the market. It is well known likewise that suchsurrounding fixtures vary in contour, and that practicallyno two valves have the same surroundings. That beingthe case, it becomes essential to have an adapter whichis universally adaptable. U The object of the invention is to simplify the structure as well as the means and mode of operation of such devices whereby they will not only be cheap in construction, but will be more ellicient and convenient in use, accurate in operation, uniform in action, easily operable and unlikely to get out of repair.

A further object of the invention is to provide an improved formof mounting for the tool and to provide positive feeding means for the tool supporting and operating shaft.

A further object of the invention is to provide adapters by which the range of adaptation may be greatly extended to include valves of extreme sizes.

, A further object of this invention is to provide an expansible and contractible adapter unit for use with various sizes and types of valves.

Another object of this invention is to provide an adapter for removing obstacles from portions of the valve fixture.

With the above primary and other incidental objects in view as will more fully appear in the specification, the invention intended to be protected by Letters Patent consists of the features of construction, the parts and combinations thereof, and the mode of operation, or their equivalents, as hereinafter described or illustrated in the accompanying drawing.

In the accompanying drawing, wherein is shown the preferred but obviously not necessarily the only forms of embodiment of the invention, Fig.

1 discloses an adapter particularly adapted for use with ball cock attachments and illustrated with a drill attachment for removing a screw or other obstructions from a portion of the valve fixture.

Fig. 2 is similar to Fig. 1 showing the attachment engaging a ball cock valve.

Figs. 3, 4, 5, 6, 7 and 8 show parts of the adapters shown in Figs. land 2, Figs. and 6 having portions shown in section.

I Like parts are indicated by similar characters of reference throughout the several views.

In the accompanying drawing, I indicates a typical ball cock valve casing embodying a bore or opening 2 inwhich is located a valve seat 3 I5 c to be formed or refinished and with which a valve extends downwardly through and is freely rov tatable in anexternally threaded sleeve 8. The stem 6 normally is longitudinally movable a restricted distance in the sleeve 8 and is normally held against other than restricted longitudinal movement withrelation to the sleeve 8 by a collar 9 held in selected, position on the stem 6 by a screw Ill and having a dependingportion H in-. cluding a cavity l2 in which a collar l3 on the uppermost end of the sleeve 8, of greater diameter than the opening to the cavity, is disposed, the collar l3 being of less thickness than the depth of the cavity H as shown in Figs. 1 and 2. With. such construction, the stem 6 may freely rotate in the sleeve 8 but may not move longitudinally relativeto the sleeve except for a restricteddistance or upon loosening of the screw l0 and adjustment of the stem 6 relatively to the collar 9. The threaded sleeve 8 has an enlarged annular knurled grip I4 on its uppermost end for a purpose hereinafter apparent.

Upon the threaded sleeve 8 is mounted an internally and externally threaded tubular member I5, the internal threads of the member engaging the external threads of the sleeve 8. The external threads of the tubular member l5 provide for the mounting of an internally threaded annular member it which, as shown, has a flaring angularly disposed skirt portion made up of sectors I1 separated by notches l8. 3 F

Secured to the lowermost end of the tubular member l6 by means ofa suitable key 19 is a frusto-conical shaped member 20, made up of interconnected sectors2l separated by notches 22 which are angularly disposed as shown in Fig.

-the tool is adapted for use either in combination toward each other.

1 and extend from top to bottom of the member. The key I9 extends from the frusto-conical shaped member 20 into an annular channel 23 in the lowermost end of the tubular member I5, which permits free rotative movement of the frusto conical shaped member 20 with relation to the tubular member I 5.

A plurality of grippers 24 which take the form;

of elongated bar-like members rest within each of the respective aligned notches I8 and 22 in the member I6 disposed at the top of the tubular member I5 and the frusto-conical disc member 20 secured to the bottom of the tubular member I5 respectively, the gripper bars being thusangularly disposed with their lowermost ends converging In order that the ban-like gripping members 2 may move with movement of the member the gripping members 24 are provided with reduced portions 25, formed by oppositely disposed notches 26, which rest within the notches I8 of the member 20. To hold the grippers 24 in such position that they will lie within the angularly disposed notches 22 in the frusto- .conical members 20, a frusto-conical sleeve 2! is provided, the sleeve having interior threads 28.

which cooperate with exterior threads 29 on the frusto-conical member 28 By drawing the frusto conical member 27 further into the frustoconical member 20, the space between the inner and outer surfaces of the respective members is obviously reduced. It is preferable that such space between the members 29 and. 27 be sumcient to permit the longitudinal movement of the assembled members 2%! and 2'! relative to the barr like gripping members 24 as a result of adjustment of the threaded sleeve 8 upwardly or downwardly'with respect to the gripper bar supporting member I6, but insufiicient to permit excessive movement thereof whereby to accurately center the cutteror other tool with respect to the valve fixture. In order to maintain the desired position of the frusto-conical member 2i with respect to the frusto-conical member 20, the member 21 is provided with a slot 30 in which a set screw 3! engaging a suitable aperture in the frusto-conical member 28 is engaged. By tightening the set screvnany desired adjustment of the frusto-conical member 2'! with respect to the frusto-conical member 20 may be maintained.

Referring to Figs. 1 and 2, it is illustrated that turning the tubular sleeve I5 by means of the knurled flange portion 34 provided for the purpose, and which turns the tool and the tubular sleeve 8 relativelyto the members I6 and Jill when the member I6 is held against rotation, the frustoconical members 26 and 21 which rotate freely with relation to the tubular sleeve I5 are drawn closer to or moved further away from the notched .member I6 in which the bar-like gripping members 24 are supported. Due to the angular disposition of the bar-like gripping members 24 and the angularly disposed notches 22 in the frustoother.

conical member 20, such relative movement of the members I6 and 20 toward and away from each other results in a corresponding approach or separation of the lowermost ends'of the bar-like gripping members 24 toward or away from each Thus, to engage the valve closure 4 as shown in Fig. 1, the members I6 and 20, which have been initially positioned relatively apart from each other in order to separate the lowermost ends of the bar-like gripping members 24 are vmoved toward each other by rotation of the threaded sleeve I5, the sleeve 8 and the tool, relatively'to the member IS in which. the bar-like gripping members 2 are supported. Relative approach movement of the members I6 and 20 movesthe lowermost ends of the bar-like gripping members 24 gradually toward eachother until they engage and rigidly grip thevalve closure 4 therebetween. Having .thusgripped thevalve closure, the next step is: rotative adjustment .of the sleeve 8 relativelyto the. tubular member I5 to bring the tool 32 carried by the lowermost end of the stem 6 into ioperative engagement with the valve closure 4. Having been moved into operative position with respect to, the valve closure, 4, the tool can be operated by rotation of the stem .6 with relation to thesleeve 8., the stem 6 having linear movement corresponding to the depth of the cavity I2 with relation. to thethickness of .the shoulder I3. As hereinbefo-redescribed any further desired longitudinal adjustment of the stem 6. with relation to the sleeve 8 can be made by loosening the screw ill and adjusting the collar 9 and associated parts-relatively to the stem 6. Having completed the desired operation with the device, the members I6 and 28 are moved relatively away from each other for reversal ofthe operation set forth in producing gripping engagement of the membersZ with thevalve closurell, which will result in separationmovement. of the lowermost ends of the grippingmembers 24 and release of their engagement with thevalve closure 4.

In Fig. 2 of the drawing isillustratedapplication of thedevice to a valve fixture, of the ball cock type for the purpose .of forming, or re-forming, the valve seat 3 with which the valve closure cooperates. Insuch application of the device, the stem 8 carries a cutter 33, preferably'of the type disclosed in my copending application, Serial No. 39,539, of which this is a division, which is disposed below the lowermost ends of the bar-like gripping members" .24. To assemble the device with the valve fixture, the

members IE and 20 are first moved into such relatively close position as toengage the stem 5.

Then, the device is disposedinrelation to the valve body in such position that the gripping surfaces 35 and 36. are opposite those surfaces of the valve fixture which it is desired to grip. At

either the selected.surface:35, or the selected surent that there is thus provided a device of the character described possessing the particular features of advantage before enumerated as desirable, but which obviously is susceptable of modification in its form, proportions, detail construction and arrangement of parts without departing from the principle involved or sacrificing any of its advantages.

While in order to comply with the statute the invention has been described in language more or less specific as to structural features, it is to be understood that the invention is not limited to the specific features shown, but that the means and construction herein disclosed comprise the preferred form of several modes of putting the invention into effect, and the invention is therefore claimed in any of its forms or modifications within the legitimate and valid scope of the appended claims,

Having thus described my invention, I claim:

1. A universal mounting device for a valve seating tool engageable with a valve fixture comprising a tapered body portion having a plurality of channels in the tapered portion, gripper jaws one in each channel having a longitudinal movement to engage the work internally, and means having a longitudinal movement with respect to the tapered body portion for moving the jaws in said channels, said means including a member having flared sectors spaced to form slots engaging the ends of said clamping jaws.

2. In a mounting and supporting-member for a valve tool, a tool supporting and operating shaft, a sleeve in which the shaft is mounted for longitudinal and free rotative movement, means for restricting longitudinal movement of the shaft relative to the sleeve, and means associated with the sleeve for securing the tool in operative position with respect to the valve including individual members movable by a single instrumentality longitudinally for approach and separation thereof to engage or release the valve.

3. In a mounting and supporting member for a valve tool, a tool supporting and operating shaft, a sleeve in which the shaft is mounted for free rotative movement, and means associated with the sleeve for securing the tool in operative position with respect to the valve including individual members movable by a single instrumentality longitudinally for approach and separation thereof to engage or release the valve.

l. In a mounting and supporting member for a valve tool, a tool supporting and operating shaft, a sleeve in which the shaft is mounted for longitudinal and free rotative movement, means for restricting longitudinal movement of the shaft relative to the sleeve, said last named means being selectively operable to permit unrestricted longitudinal adjustment of the shaft relative to the sleeve, and means associated with the sleeve for securing the tool in operative position with respect to the valve including individual members movable by a single instrumentality longitudinally for approach and separation thereof to engage and release the valve.

5. In a mounting and supporting member for a valve tool, a tool supporting and operating shaft, a sleeve in which the shaft is mounted for free rotative movement, means associated with the sleeve for securing the tool in operative posi tion relative to the valve including individual gripper members movable longitudinally for approach and separation thereof to engage and release the valve, a sleeve supporting the gripper members and adjustably mounted on the first named sleeve and with respect to which the first named sleeve is adjustable to position the tool with respect to operative relation with the valve.

6. In a mounting and supporting member for a valve tool, a tool supporting and operating shaft,,a sleeve in which the shaft is mounted for free rotative movement, means associated with the sleeve for securing the tool in operative position relative to the valve including individual gripper members movable longitudinally for approach and separation to engage and release the valve, a sleeve supporting the gripper members and adjustably mounted on the first named sleeve and with respect to which the first named sleeve is adjustable to position the tool with respect to operative relation with the valve, said second named sleeve having guiding means for the individual gripper members associated therewith.

'7. In combination with a valve tool having a supporting and operating shaft, a member associated withthe shaft and with respect to which the shaftand tool are rotatable and longitudinally adjustable, and means carried by the member for securing the tool in operative position with respect to the valve including individual members movable by a single instrumentality longitudinally for separation and approach to engage and release the valve.

8. In combination with a valve tool having a supporting and operating shaft, a member associated with the shaft and with respect to which the shaft and tool are rotatable and longitudinally adjustable, and means carried by the member for securing the tool in operative position with respect to the valve including individual members movable by a single instrumentality longitudinally for separation and approach to engage and release the valve, and means associated with the first named member for supporting and moving the gripping members in unison into and out of engagement with the valve independently of movement with the shaft and tool supported thereby. i

9. In combination with a valve tool having a supporting and operating shaft, a member associated with the shaft and with respect to which the shaft and tool are rotatable and longitudinally adjustable, means carried by the member for securing the tool in operative position with respect to the valve including gripping members movable by a single instrumentality longitudinally for separation and approach to engage and release the valve, and relatively movable means carried by the member for supporting, guiding,

and moving the gripping members longitudinally.

tively movable means carried by the member and movable independently of movement of the shaft and tool supported thereby for supporting, guid- ROLAND G. HAWKE

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