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    • 2. 发明专利
    • Valve lifter
    • GB181225A
    • 1922-06-15
    • GB1442521
    • 1921-05-24
    • GILBERT JOSEPH WHITE
    • B25B27/26
    • 181,225. White, G. J. May 24, 1921. Cramps; prizing-tools.-A valve-spring compressor and holder comprises a U-shaped member, the lower end of which is provided with a bifurcation forming spring arms, means slidable on the arms for forcing them together, a vertically slidable bar in a bearing of the U-shaped member and in a bearing of an extension thereof, lever means connected to one end to the slidable bar for forcing downwardly, and a spring-actuated detent to engage ratchet teeth on the slidable bar for holding it in any position. The U- shaped member 1 is formed with spring arms 3 which normally tend to spring apart, being forced together by a slidable collar 7 to engage the valve-rod 6 in the recesses 5 which are shallow so as to allow the pin 8 on the rod 6 to pass between the arms 3 when they move upwardly to lift the washer 9 and compress the spring 10. The other end of the member 1 has an extension 13, 15, 18, bearings being formed at 14 for a slidable bar 16 which engages with the valve 16 . A lever 19, which is pivoted to the bar 16 at 20 and to the member 1 by a link 22, on being moved in the direction of the arrow a presses the end of the bar 16 against the valve 16 and lifts the member 1 thus compressing the spring 10 and allowing of the removal of the pin 8. A pawl 24, nivoted in an aperture 25 in the member 15 and actuated by a spring 28 engages with teeth 27 nn the red 16 so as to hold it in any desired position. The upper end of the pawl 24 engages an aperture in a pivoted member 30 by which it can be released from engagement with the rod 16. The member 18 is grasped by the hand to steady the arrangment during its operation.
    • 4. 发明专利
    • Improvements relating to braking apparatus for railway and other vehicles
    • GB446289A
    • 1936-04-27
    • GB3088934
    • 1934-10-27
    • JOSEPH WHITEWESTINGHOUSE BRAKE COMPANY OF
    • B60T8/34B60T8/74
    • 446,289. fluid - pressure brakes. TOMLINSON, A. V., 65, Victoria Street, Westminster.-(White, J. ; 5, Edward Street, Concord, near Sydney, and Westinghouse Brake Co. of Australasia, Ltd. ; George Street, Concord West, near Sydney, Australia) Oct. 27, 1934, No. 30889. [Class 103 (i)] The braking effort of fluid-pressure brakes exerted on the wheels of an axle or axles subject to similar conditions of adhesion is automatically determined by an inertia control valve according to the pressures obtaining between the wheels and the track rails during braking. When a vehicle is braked, the pressure between the front wheel and track is increased and between the rear wheels and track is decreased, therefore according to the invention the brake cylinder pressure acting on the rear wheels is limited by means of a valve operated by an inertia governor to prevent sliding of the rear wheels. In Fig. 1, brake cylinders 1, 2 are on the front bogie and brake cylinders 3, 4 on the rear bogie. When the vehicle is travelling from right to left and the brakes are applied, the supply to the rear cylinders 2, 4 of each bogie through a passage E is cut off by a valve 8 operated by a pendulum 6 only a supply at a reduced pressure is permitted through a spring check valve 15. When the vehicle is travelling from left to right the cylinders 1, 3 are similarly controlled by the valve 8, a passage C and a check valve 17. Pressure fluid for braking is supplied by a pipe G to the chamber D containing the pendulum 6 and then to passages C, E. The pendulum 6 is locked when the brakes are not applied by the conical end of the piston rod of a spring- pressed piston 25 adapted to be depressed to free the pendulum on brake application by the pressure in the chamber D. In a modification, two further inertia controlled valves are arranged in the system so as to compensate for the difference of wheel adhesion of the two bogies each considered as a whole.
    • 9. 发明专利
    • Improvements relating to automatic control valves for variable load braking apparatus for vehicles
    • GB719665A
    • 1954-12-08
    • GB1594652
    • 1952-06-25
    • JOSEPH WHITE
    • B60T8/18
    • 719,665. Fluid-pressure brakes. WHITE, J. April 24, 1953 [June 25, 1952], No. 15946/52. Class 103(1) In an automatic control valve device for variable load braking apparatus for vehicles, a valve governs communication between a first and second chamber and a measuring piston or diaphragm has its working face subjected to the pressure in the first chamber and acts through a first spring to extend a measuring member against the opposing action of a second spring; a dash pot device is included comprising a pair of axially aligned and rigidly spaced apart movable abutments, the arrangement being such that the valve is opened by the movement of the abutment in one direction and allowed to close by the movement of the abutment in the other direction. In one form, the vehicle is equipped, in addition to the usual brake pipe, triple valve, brake cylinder and auxiliary reservoir, with means for measuring the deflection of the vehicle springs and thus the load carried by the vehicle, a variable volume device and an automatic control valve which forms the subject of the invention and functions in such a manner that when the vehicle is fully loaded, the communication between the brake cylinder and the variable volume device is cut off and when the vehicle is empty or partially loaded and is established, when a brake application is initiated, until a predetermined proportion of the compressed air supplied to the brake cylinder has passed into the variable volume device, thus reducing the brake force exerted by the brake cylinder by an amount determined by the vehicle load. The automatic control valve comprises a cylindrical body having end casings 2, 19 housing the working parts, and mounted on the vehicle underframe. In operation, upon the initiation of a brake application. compressed air is supplied to the brake cylinder (not shown) and passes into the communicating supply chamber 15, the measuring piston 16 thus being forced outwards against the action of the spring 18, the length of its stroke depending upon the deflection of the vehicle springs. This movement is transmitted through the cross member 21 and longitudinal rods 5, 30 to the yoke 1 and through the yoke to the calibrated spring 3 which is compressed accordingly and transmits a corresponding thrust through the oil dashpot device 10 to the diaphragm 12 which controls the opening of the spring loaded valve 13 controlling the flow of air from the supply chamber 15, connected with the brake cylinder, to the second chamber 26 connected with the variable volume device, until the pressure in the latter, acting on diaphragm 12, overcomes the opposing force exerted by the calibrated spring 3 and allows the valve to reclose. Upon release of the brakes, the pressure in the brake cylinder falls below that in the variable volume device and the valve accordingly opens to allow air from the latter to pass back into the brake cylinder and thence to atmosphere. Specifications 602,382 and 719,666, [Group XXXII], are referred to.