GB521980A - Improvements in hydraulic receivers more particularly for hydraulically actuated brakes - Google Patents

Improvements in hydraulic receivers more particularly for hydraulically actuated brakes

Info

Publication number
GB521980A
GB521980A GB3486638A GB3486638A GB521980A GB 521980 A GB521980 A GB 521980A GB 3486638 A GB3486638 A GB 3486638A GB 3486638 A GB3486638 A GB 3486638A GB 521980 A GB521980 A GB 521980A
Authority
GB
United Kingdom
Prior art keywords
piston
cylinder
spring
pistons
small
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3486638A
Original Assignee
Gratzmuller Jean Louis
Lionel Rene Ignace
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to LU521980X priority Critical
Application filed by Gratzmuller Jean Louis, Lionel Rene Ignace filed Critical Gratzmuller Jean Louis
Publication of GB521980A publication Critical patent/GB521980A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00Parts or details
    • F16D65/14Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/16Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
    • F16D65/22Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for pressing members apart, e.g. for drum brakes

Abstract

521,980. Hydraulic motors. GRATZMULLER, J. L., and IGNACE, L. R. Nov. 30, 1938. No. 34866. Convention date, Dec. 2, 1937. [Class 69 (ii)] [Also in Groups XXXIV and XXVI] A hydraulic receiver, e.g., for actuating brakes, comprises small and large pistons 14 and 4 adapted to operate in succession, the small piston 14 being connected with the part to be actuated and mounted in a bore 13 in the large piston 4 which works in a cylinder 2 and is subject to the return action of resilient means such of a spring 7. Communication between the cylinder 2 and bore 13 is controlled by a check valve 9 initially unseated by engagement with the end of cylinder 2. Fluid is forced into the cylinder 2 and exerts a pressure on both pistons, but initially the pressure is insufficient to overcome the spring 7 so that at first 'the small piston 14 only is displaced. When the resistance to movement of piston 14 increases, as when the slack in the brake mechanism is taken up, the fluid pressure increases until it is sufficent to overcome spring 7. The large piston 4 then commences to move outwards, the check valve 9 immediately closing so that the two pistons move in unison to apply an increased force. In a modification a rubber or other elastic liner interconnects the large piston and cylinder 2. The return spring 7 is then omitted.
GB3486638A 1937-12-02 1938-11-30 Improvements in hydraulic receivers more particularly for hydraulically actuated brakes Expired GB521980A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
LU521980X 1937-12-02

Publications (1)

Publication Number Publication Date
GB521980A true GB521980A (en) 1940-06-05

Family

ID=19732839

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3486638A Expired GB521980A (en) 1937-12-02 1938-11-30 Improvements in hydraulic receivers more particularly for hydraulically actuated brakes

Country Status (1)

Country Link
GB (1) GB521980A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2513192A (en) * 1948-03-18 1950-06-27 Packard Motor Car Co Multiple piston hydraulic motor for planetary gear brakes
US2633712A (en) * 1951-02-16 1953-04-07 Chrysler Corp Servo cylinder
US2638750A (en) * 1950-03-24 1953-05-19 Borg Warner Transmission brake servomotor
US2675678A (en) * 1954-04-20 english
US2769307A (en) * 1950-07-14 1956-11-06 Studebaker Packard Corp Hydraulically operated servo-motor
US2776540A (en) * 1955-01-06 1957-01-08 Hannifin Corp Hydraulic punching apparatus
US3056264A (en) * 1959-07-13 1962-10-02 American Brake Shoe Co Hydraulic brake cylinder

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2675678A (en) * 1954-04-20 english
US2513192A (en) * 1948-03-18 1950-06-27 Packard Motor Car Co Multiple piston hydraulic motor for planetary gear brakes
US2638750A (en) * 1950-03-24 1953-05-19 Borg Warner Transmission brake servomotor
US2769307A (en) * 1950-07-14 1956-11-06 Studebaker Packard Corp Hydraulically operated servo-motor
US2633712A (en) * 1951-02-16 1953-04-07 Chrysler Corp Servo cylinder
US2776540A (en) * 1955-01-06 1957-01-08 Hannifin Corp Hydraulic punching apparatus
US3056264A (en) * 1959-07-13 1962-10-02 American Brake Shoe Co Hydraulic brake cylinder

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