Vehicle-braking system

Claim 1

IN A VEHICLE-BRAKING SYSTEM FOR A VEHICLE HAVING A SHAFT COUPLED WITH WHEELS OF THE VEHICLE AND FLUID-RESPONSIVE WHEEL-BRAKE MEANS, IN COMBINATION: A HYDRAULIC DECELERATOR COUPLED TO SAID SHAFT AND OPERABLE UPON AN INCREASE OF HYDRAULIC PRESSURE APPLIED TO SAID DECELERATOR FOR REDUCING THE SPEED OF SAID SHAFT; FLUID-RESPONSIVE BRAKE-ACTUATING MEANS COUPLED WITH SAID WHEEL-BRAKE MEANS FOR ENERGIZING SAME, SAID BRAKE-ACTUATING MEANS INCLUDING: DIFFERENTIAL-VALVE MEANS FORMED WITH A PASSAGE COMMUNICATING FLUID TO SAID WHEEL-BRAKE MEANS, AND MECHANISM CONTROLLED BY SAID DECELERATOR FOR SELECTIVELY BLOCKING SAID PASSAGE TO CONTROL THE FLUID PRESSURE APPLIED TO SAID WHEEL-BRAKE MEANS IN ACCORDANCE WITH THE DEGREE OF BRAKING OF SAID SHAFT BY SAID DECELERATOR; AND CONTROL MEANS OPERATIVELY INTERCONNECTING SAID HYDRAULIC DECLEARATOR AND SAID BRAKE-ACTUATING MEANS FOR INCREASING THE HYDRAULIC PRESSURE APPLIED TO SAID DECELERATOR UPON OPERATION OF SAID BRAKE-ACTUATING MEANS TO ENERGIZE SAID WHEEL-BRAKE MEANS, SAID DIFFERENTIAL-VALVE MEANS COMPRISES A VALVE HOUSING, A SEAT-FORMING MEMBER IN SAID HOUSING SHIFTABLE UNDER THE ACTION OF A FLUID-PRESSURE DIFFERENTIAL APPLIED THEREACROSS, SAID SEAT-FORMING MEMBER BEING PROVIDED WITH SAID PASSAGE AND SUBDIVIDING THE INTERIOR OF SAID HOUSING INTO A HIGH-PRESSURE CHAMBER AND A LOW-PRESSURE CHAMBER INTERCONNECTED BY SAID PASSAGE, SPRING MEANS IN SAID HOUSING BIASING SAID SEATFORMING MEMBER INTO A PREDETERMINED NORMAL POSITION AND RESISTING DISPLACEMENT OF SAID SEAT-FORMING MEMBER IN OPPOSITE DIRECTIONS OUT OF SAID POSITION, SAID HIGH-PRESSURE CHAMBER COMMUNICATING WITH SAID BRAKE-ACTUATING MEANS FOR PRESSURIZATION THEREBY TO ENERGIZE SAID WHEEL-BRAKE MEANS, SAID LOW-PRESSURE CHAMBER COMMUNICATING WITH SAID WHEEL-BRAKE MEANS FOR COMMUNICATING THERETO FLUID APPLIED TO SAID DIFFERENTIAL-VALVE MEANS BY SAID BRAKE-ACTUATING MEANS.