US1447652A

US1447652A - Cut-out-cock device

Info

Publication number: US1447652A
Authority: US
Inventors: Clyde C Farmer
Original assignee: Westinghouse Air Brake Co
Current assignee: Westinghouse Air Brake Co
Priority date: 1919-10-15
Filing date: 1919-10-15
Publication date: 1923-03-06
Anticipated expiration: 1940-03-06

Description

Mar. 6, 1923. 1,447,652

c. c. FARMER GUT-OUT COCK DEVICE Filed Oct. 15, 1919 I if 20 9 Q INVENTOR ATTORNEY Patented Mar. 6, 1923.

UNITED sr rEsrarnNr caries.

B RRIE 9E ITTS B GH PENNSYL NI 'ASSIGNOR TO H E I WILMEBDING, PENNSYLVANIA, a coerce-ev LYDE e:

HOUSE are BRAKE QOMPANY, TION or .IENNWLVAMA' CUT-OU-TeCOCK DEVICE.

. Application filed October 15, .1918. Serial No. 339,790.

To all w how it may concern.-

Be it known vthat I, CLYDE. C. FARMEB, a citizen of the United States, residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented new and useful Impr v ments in Gut-Ou q k Devices, of which the following is a specification.

This invention relates to means for controlling the flow of fluid through a train pipe, and is more particularly designed to be applied in connection with the brakepipe of afiuid pressure brake system.

' vIjlereto-fore, the usual practice has been to provide an angle cock device at each end of the car for controlling communication through the brake pipe of the brakesystem.

If one of the angle cocks should be closed, without the engineer being aware of the fact, then he will be unable to apply the brakes for the purpose of stopping thetrain and a serious accident is liable to occur.

In order to avoid the possibility of accidental closing of an angle cook, the principal object of my invention contemplates dispensing with angle cocks at the ends of a car and providing instead, a cut-out cock for controlling the brake pipe, which is so located that it can only be operated from the side of the car and therefore only when the car is standing.

Means, including a key, are provided for locking the cut-out cock in its different operating positions, and since only the trainman, authorized to operate the cock, is provided with a key, no unauthorized person can tamper with the cock.

In the accompanying drawing, Fig. 1 is a central sectional view of a construction embodying my invention, showing the parts in normal position; Fig. 2 a similar view, showing the parts unlocked and in position for turning the cut-out cock; Fig. 3 a section on the line 3-3 of Fig. 1; Fig. 4 a. section on the line H of Fig. 1; and Fig. 5 a section on the line 55 of Fig. 1.

According to the construction shown in the drawing, a cut-out cock is provided comprising a casing 1 adapted to be secured underneath the car and having a plug valve 2 for controlling communication through the brake pipe 3 and the: branch pipe 4:, leading to the usual triple valve device. Y

For operating the valve 2, a hollow shaft 5 is mounted underneath and transversely of the car and has secured thereto a gear wheel (5 adapted mesh with a gear wheel '7, which secured to the operating stem of the valve 2.

Extending into each end of the hollow shaft 5 from opposite sides of the car, is a shaft 8, carrying a handle 9 and between the inner ends of the shafts S is mounted a locking device 10 adapted to move longitudinally within the hollow shaft 5 and having a projecting latch 11, normally adapted to engage notches 12 formed in lugs 13 carried by the casing and arranged to correspond with the different positions of the cock. T he lat-ch 11 is movable longitudinally in a slot 14, of the shaft 5 and prevents rotation of the shaft when the latch engages within one of the notches 12.

Coil springs 15 act on opposite sides of the locking device 10 and tend to maintain same in its normal locking posit-ion.

ach shaft 8 is provided at an intermediate point with a squared section 16, adapted when the shaft is pushed inwardly to engage a squared socket 17, provided in the hollow shaft 5.

In order to normally look the shaft 8 in its inoperative position, said shaft is provided with a collar 18 and adjacent to the collar is a pivotally mounted pawl 19 which normally lies in the path of the collar 1.8, so that the shaft cannot be moved longitudinally.

The pawl 19 is mounted in and enclosed by a casing 20 secured at the side of the car and can only be operated by means of a key which must be inserted through the opening in an escutcheon 21 in order to engage the pintle 22 of the pawl 19. v

In operation, when the parts are in the posit-ions shown in Fig. 1, the rotation of either handle 9 will not cause the rotation of the hollow shaft 5, since the pawl 19 prevents the movement of the shaft 8 so as to permit engagement of the section 16 within the aperture 17.

If it is desired to operate the cut-out cock, the trainman must insert the proper key through the escutcheon 21 and then turn the pawl 19, so as to permit the inward movement of the collar 18 and the shaft 8.

The section 16 will then engage in the corresponding aperture 17, so that upon turning the handle 9, the hollow shaft 5 will be rotated, thus rotating the

gears

6 and 7 and the plug valve 2. V

The inward longitudinal movement of the shaft 8 causes the longitudinal movement of the locking device 10, so that the latch 11 is disengaged from the notch 12 and thus permits the rotation of the shaft 5.

During this movement of the parts, the

coil spring 15 which is-remote from the handle 9 is compressed and the adjacent shaft 8 is pushed outwardly, as shown in Fig. 2 of the drawing.

When the cut-out cock has been rotated to the desired position, the handle 9 being released, the spring 15, which is compressed, acts to return the parts tonormal position, and upon removal of the operating key, the pawl 19 will drop by gravity, so as to lock the shaft 8 in its normal inoperative position. I

The cut-out cock may have four positions as indicated by figures in the casing 20. In position 1, communication is opened through the plug valve 2 to the branch pipe 4, and also through the brake pipe 3. In position 2,'the brake pipe at one side of the cock is cut off, while the brake pipe at the opposite side is connected to the branch pipe 4-. In

position 3, the brake pipe at the other 'side of the cock is cut off, while the other brake pipe connection is opened to the branch pipe. In position t, the branch pipe 4 is cut off, while communication is opened through the brake pipe 3,

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

1. The combination with a cock, of a clevice for operating said cock, comprising a hollow shaft extending transversely of a car and operatively connected to the cock, opposing rotatable shafts, each adapted to be moved longitudinally to operatively engage the hollow shaft, a handle for operat ing each rotatable shaft, and means for locking each rotatable shaft against longitudinal movement.

2. The combination with a cock, of a device for operating said cock, comprising a rotatable member operatively connected to the cook, a device for locking said member against rotation, and movable longitudinally to release said member, manually operated means for longitudinally moving said device and adapted tobe operatively connected to said member for rotating the same, and a device for locking said means to prevent said longitudinal movement.

The combinationwitha cock, of a device for operating said cock,.comprising a rotatable member operatively connected to the cook, a. device for locking said member against rotation, and movable longitudinally in opposite directions to release said member, and spring means tending to move said device from either release position to its locking position; e

4:. The combinationwith a'cock,of a rotatable member operatively connected to said cook, a manually operable device at opposite sides of the cock, each having aposition fol-operatively engaging said member and a non-operating position, and means for normally holding said devices in their nonoperating positions.

The combination with a cock, of a rotatable member operatively connected to said cook, a device for locking said member against rotation and movable axially of said member for releasing-the same, and a manually operable member having a position for operatively engaging said member and anon-operating position and adapted to shift said locking device to release said member uponmovement thereof from the nonoperating'position to the operative position.

In testimony-whereof I have hereunto set my-h'and.

-' CLYDE C. FARMER.