GB506972A - Improvements in hydraulic systems - Google Patents
Improvements in hydraulic systemsInfo
- Publication number
- GB506972A GB506972A GB20256/38A GB2025638A GB506972A GB 506972 A GB506972 A GB 506972A GB 20256/38 A GB20256/38 A GB 20256/38A GB 2025638 A GB2025638 A GB 2025638A GB 506972 A GB506972 A GB 506972A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- passages
- pivot
- spring
- july
- 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
- B60T11/22—Master control, e.g. master cylinders characterised by being integral with reservoir
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Transmission Of Braking Force In Braking Systems (AREA)
Abstract
506,972. Hydraulic transmission of power. GENERAL MOTORS CORPORATION. July 8, 1938, No. 20256. Conventiondate, July 16, 1937. [Class 69 (ii)] [Also in Groups XXXIV and XXXI] A master cylinder comprises a return spring so mounted that the mechanical advantage of the operator's foot against it increases as the plunger is depressed thus ensuring that the resistance to the operator's foot does not increase. The spring 59 is coiled round the connecting pivot 53 of two links 49, 43 pivoted to the master cylinder pedal 37 at 47 and a fixed point 41 respectively. The ends of the spring are each hooked round a link. Each link is fixed to one part of the pivot 53 which is in two parts having notch and lug engagement, in order to prevent alignment of the links and locking of the piston in the outermost position. In a modification this is prevented by an extension of the pivot 53 which is adapted to engage the piston 23. The piston 23 is guided in guides 21, 67 and a packing sleeve 77. A check valve 91 allows liquid to be drawn from the reservoir into the cylinder by the suction created on brake release. This liquid is returned through passages in the end of the piston which register with passages 71, 103 in release position. Passages 103, 69 supply fluid to the space behind the piston.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US506972XA | 1937-07-16 | 1937-07-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB506972A true GB506972A (en) | 1939-06-07 |
Family
ID=21966833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20256/38A Expired GB506972A (en) | 1937-07-16 | 1938-07-08 | Improvements in hydraulic systems |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE694752C (en) |
| GB (1) | GB506972A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2473803A (en) * | 1945-06-01 | 1949-06-21 | Hydraulic Brake Co | Master cylinder |
| DE913130C (en) * | 1952-03-02 | 1954-06-08 | Daimler Benz Ag | Foot actuation device of motor vehicles, in particular for actuating the clutch, the brakes or the like. |
-
1938
- 1938-07-08 GB GB20256/38A patent/GB506972A/en not_active Expired
- 1938-07-17 DE DE1938G0098296 patent/DE694752C/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2473803A (en) * | 1945-06-01 | 1949-06-21 | Hydraulic Brake Co | Master cylinder |
| DE913130C (en) * | 1952-03-02 | 1954-06-08 | Daimler Benz Ag | Foot actuation device of motor vehicles, in particular for actuating the clutch, the brakes or the like. |
Also Published As
| Publication number | Publication date |
|---|---|
| DE694752C (en) | 1940-08-08 |
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