| 摘要 |
<p>1,244,562. Fluid pressure brakes; valves. COMPAGNIE DES FREINS ET SIGNAUX WESTINGHOUSE. 13 June, 1969 [17 June, 1968], No. 30097/69. Headings F2F and F2V. A fluid-pressure control device 16 which is placed in the linkage to one of the rear wheel brakes of a tractor and which controls the operation of the brakes of a trailer has a body portion 25 with a pressure fluid control valve comprising a flap 44 disposed between an inlet port 29 and an outlet port 31, an actuator rod 43 movable relatively to the body 25, a piston 40 being disposed between the rod 43 and the control valve to open it in response to relative movement, pressure fluid which has passed through the valve acting on the piston to oppose the relative movement between the actuator rod and the body and force transmitting means co-operating with the piston, body and actuator rod is in the form of a plate 34 having lugs 35, 35a to which are pivoted levers 37, 37a, the ends of which bear on the piston 40 urged by a saddle member 42. In a modification, the member 42 is replaced by an annular plate (55) and the levers 37, 37a are replaced by an annular resilient disc (56).</p> |
