GB502056A - Improvements in or relating to hydraulic brake and other power transmission systems - Google Patents
Improvements in or relating to hydraulic brake and other power transmission systemsInfo
- Publication number
- GB502056A GB502056A GB1972/38A GB197238A GB502056A GB 502056 A GB502056 A GB 502056A GB 1972/38 A GB1972/38 A GB 1972/38A GB 197238 A GB197238 A GB 197238A GB 502056 A GB502056 A GB 502056A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- pressure
- flange
- spring
- space
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
- B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
- B60T11/16—Master control, e.g. master cylinders
- B60T11/224—Master control, e.g. master cylinders with pressure-varying means, e.g. with two stage operation provided by use of different piston diameters including continuous variation from one diameter to another
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Transmission Of Braking Force In Braking Systems (AREA)
Abstract
502,056. Hydraulic transmission. HYDRAULIC BRAKE CO. Jan. 20, 1938, No. 1972. Convention date, Jan. 22, 1937. Addition to 443,154. [Class 103 (i)] A hydraulic transmission system comprises a low-pressure piston 90 forward of the highpressure piston 48, the pressure being gradually transferred from the lowto the high-pressure piston. The high-pressure piston 48 is formed by a part 54 and a flange 68 formed on a sleeve 76 integral with the low-pressure piston 90. A spring 70 is arranged between the flange 68 and a flange 58 on the part 54. The part 54 is in one with a piston 64 working in the sleeve 76 and carrying a rod 100 having a head 102 fitting in an aperture in the face of the piston 90. When the brake pedal, which is connected to the piston rod 120, is depressed, liquid is forced into the brake pipe lines 36 until the pressure. is sufficient to overcome the spring 70 whereupon the part 54 and the piston 90 approach one another and the head 102 raises the leak-proof cup 112 and connects the spaces in front of the piston 90 to the space 20. The pressure in this space however has been reduced in view of the movement of and the difference in the diameters of the pistons. The parts therefore move back again until a higher pressure is reached in the chamber 22 whereupon this cycle of operations is repeated. Finally the pressure attained is such that the spring 70 is permanently compressed and the space 20 is open to the pipe lines 36 and the braking pressure is exerted by the high-pressure piston which comprises the cups 74, 104 mounted on the flange 68, the piston 64 respectively.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US443154XA | 1933-09-16 | 1933-09-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB502056A true GB502056A (en) | 1939-03-10 |
Family
ID=21931681
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB24104/34A Expired GB443154A (en) | 1933-09-16 | 1934-08-21 | Improvements in hydraulic brake and other power transmission systems |
| GB1972/38A Expired GB502056A (en) | 1933-09-16 | 1938-01-20 | Improvements in or relating to hydraulic brake and other power transmission systems |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB24104/34A Expired GB443154A (en) | 1933-09-16 | 1934-08-21 | Improvements in hydraulic brake and other power transmission systems |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE404809A (en) |
| DE (1) | DE639483C (en) |
| FR (1) | FR777206A (en) |
| GB (2) | GB443154A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0140779A1 (en) * | 1983-10-31 | 1985-05-08 | Allied Corporation | A master cylinder |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE753835C (en) * | 1939-05-10 | 1952-10-13 | Teves Kg Alfred | Two-stage liquid pressure generator |
| DE858201C (en) * | 1949-06-18 | 1952-12-04 | Teves Gmbh Alfred | Stepped master cylinder, especially for hydraulic brakes, with automatic charging of a pressure accumulator |
| DE1132015B (en) * | 1958-02-26 | 1962-06-20 | Renault | Device for preventing the locking of the wheels of a vehicle equipped with hydraulically operated friction brakes, in particular a motor vehicle, and master cylinder for this system |
-
1934
- 1934-08-16 FR FR777206D patent/FR777206A/en not_active Expired
- 1934-08-20 BE BE404809D patent/BE404809A/xx unknown
- 1934-08-21 GB GB24104/34A patent/GB443154A/en not_active Expired
- 1934-08-28 DE DEH141055D patent/DE639483C/en not_active Expired
-
1938
- 1938-01-20 GB GB1972/38A patent/GB502056A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0140779A1 (en) * | 1983-10-31 | 1985-05-08 | Allied Corporation | A master cylinder |
| US4559781A (en) * | 1983-10-31 | 1985-12-24 | Allied Corporation | Master cylinder |
| AU568577B2 (en) * | 1983-10-31 | 1988-01-07 | Allied Corporation | A master cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| BE404809A (en) | 1934-09-29 |
| FR777206A (en) | 1935-02-13 |
| GB443154A (en) | 1936-02-21 |
| DE639483C (en) | 1936-12-12 |
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