US1447651A - Locking-handle cock - Google Patents

Description

Mar. 6,1923.

C. C. FRMER LOCKING HANDLE COCK Filed Oct. l5, 1919 ATTORNEY i INVENToR de @Fc-armer Patented Mar. 6, 1923.

STATES ian, rarer eric:

W'ESTNG- HOUSEAIR BRAKE COMPANY, OF VILMERDING, PENNSYLVANIA, A CORPORA- TION OF PENNSYLVANIA.

v LOCKING-HANDLE COCK.

Application filed October 15, 1919.

To all 'whom t may con cem Be itknown that l, @Lynn C. Fenner, a; citizen of the United States, residing `at littsburgh, in the county of'Allegheny and State of Pennsylvania, have invented ne7 and useful Improvements in Locking-Handle Cocks, of which the following is a specification.

This invention relates to cocks, and more particularly to an angle cock as employed on railway cars for controlling communica tion through the brake pipe or other fluid pressure train pipe.

lt has sometimes happened that an angle cock in the train brake pipe has been closed y an unauthorized person or has been negligently closed, so that the engineer loses control or' the brakes ot the train, especially if an angle cock be closed near the head end of the train.

Serious accidents are then very liable to happen, as the engineer cannot apply the brakes to stop the train in case of necessity.

The principal object of my invention is to obviate the above difficulty by providing` a cock which can bel locked in the open and closed positions of the cock.

In the accompanying drawing; Fig. 1 is an elevation of an angle cock device embodying my invention; Fig. 2 a section of the locking handle portion of the cock on the line 2*2 of Fig. 3; Fig. 3 a section on the line 33 of Fig. 2; Fig. 4 a section similar to Fig. 2, showing the handle in its raised position; and Fig. 5 an end View of the locking member.

As shown in the drawing, the angle cock device may comprise the usual cock body l and a looking handle 2 constructed similarly to the locking handle disclosed in the prior Reissue Patent No. 12,5711 of Inches t Hosker, dated Dec. 11, 1906.

The handle 2 is pivoted to a member 3 which is secured to the cock key and is provided With a lug 4 adapted to engage stops 5 and 6 in the -cock body 1 when the key is turned to its respective open and closed positions.

The handle is also provided with lugs 7 and 8. the lug` 7 being adapted to engage the stop t when the handle is in its open posi tion, and the lng' S the stop 5, when the hann die is in its closed position.

According to my invention` a locking memsriai no. 330,787.

ber 9 is provided for preventing movement ot the handle 2. The key member 3 is pro vided With an upwardly extending lug 10', havingl a concavity 11 on its edge and the member 9 is provided with a cylindrical section 12 adapted to engage in the concavity 1l for locking the parts against movement, the opposite side ot' "the section away to providca` flat tace 13.

T he locking,r member 9 is mounted in an enclosing casing` 11i, forming' part of the handle 2 and at one end is provided With a cavity 15 for receiving;l a key 19. An escutcheon 1G is seciired in the casing' 1+iadjacent to the end of the locking; member 9.

An eccentric Weight l? is secured to the member' 9 and is so positioned as to tend to maintain the locking member in its locked position. A

ln order to turn the handle sary to first the lng 7 or stop 5 or 6.

lilith the locking' member 9 in the position shown in Fig. 2, the section 12 engages vvithin the concavity 11 and thus prevents the handle 2 from being lifted, so that the handie cannot be turned from either its open or its closed position.

If it is desired to operate the cock, a key 19, corresponding with the contour of the slot in the escntcheon, must be inserted and the member 9 turned, so that the flat tace 13 is adjacent to the concavity 1.1.

Then the handle 2 may be lifted and turned to the desired position.

When the handle has been lifted, the tlat face 13 will be adjacent to a face 18 on the lng 10, so that while in a lifted position, the member 9 cannot be rotated, nor can the key 19 be removed.

The handle 2 must therefore be moved toits full open or closed position and then allowed to drop to its locked position, before the member 9 can be rotated and then the key 1,9 must be turned so as to move the member 9 to its locked position, so that the key Will aline with the slot in the escutcheon and thus permit its removal.

The action ol.l the weight 17 snch that the member 9 `will be maintained in its locked position, regardless oli' jarring when the train in motion.

The above described construction prevents 2, it is necesliit the same, so as to disengage 8, as thecase may be, trom the being cnt the movement of the angle cock handle eX- cept by a person provided with the proper key, and it is intended that the trainman in charge ot the train shall keep possession of the keyv and held responsible for the same.

IIavinp,` now described my invention, what I claim as ne\v, and desire to secure by Letters Patent, is

1.- The combination with a cock device comprising a valve body having stops and a vertically movable handle having a projection ttor engaging one of the stops, of a member mounted on the handle for locking said handle against vertical movement from normal position and rotatable to a position for releasing the handle and means for prevent ing rotation of said member from its release position in the raised position of the handle.

2. In a cock device, the combination With a handle for operating the cook key and pivoted for vertical movement from anormal position, ot' a rotatable member' carried by the handle and adapted to lock the handle against vertical movement, a key for rotatingsaid member, and means :tor preventing rotation of said member and the turning of the key when the handle is in its raised position.

3. In a cock device, the combination With a member secured to the cool; key and a vertically movable handle pivoted to said mem ber for operating the key, of a rotatable locking' device carried by the handle tor engaging said member' toprevent vertical move'- ment ot lsaid handle said member having means for 'preventing rotation of the locking device when the handle is moved vertically.

In testimony whereof I have hereunto set my hand.

' CLYDE C. FARMER.

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