GB451256A - Improvements relating to the control of manually operable brakes - Google Patents
Improvements relating to the control of manually operable brakesInfo
- Publication number
- GB451256A GB451256A GB381535A GB381535A GB451256A GB 451256 A GB451256 A GB 451256A GB 381535 A GB381535 A GB 381535A GB 381535 A GB381535 A GB 381535A GB 451256 A GB451256 A GB 451256A
- Authority
- GB
- United Kingdom
- Prior art keywords
- switch
- lever
- brake
- magnet
- pawl
- 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
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/08—Brake-action initiating means for personal initiation hand actuated
- B60T7/10—Disposition of hand control
- B60T7/102—Disposition of hand control by means of a tilting lever
- B60T7/104—Disposition of hand control by means of a tilting lever with a locking mechanism
- B60T7/105—Disposition of hand control by means of a tilting lever with a locking mechanism the lock being released by means of a push button
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Elements And Transmission Devices (AREA)
- Braking Arrangements (AREA)
Abstract
451,256. Locking brake - levers. GEMMILL, D. T., 'Nellan, Drumchapel Road, Bearsden, Dumbartonshire. Feb. 6, 1935, No. 3815. [Class 79 (iii)] [See also Group XXXIV] A locking device for a hand brake-lever is adapted to be released by a magnet controlled by a switch on the hand-lever in conjunction with another switch which may be the ignition switch of the vehicle, the object being to prevent unauthorized release of the brake. The device shown in Fig. 5 comprises a magnet 15 mounted on the brake hand lever 10 and an armature plate 25 carrying a pawl 13 slidable in guides 24 on the lever and adapted to engage a rack 14 secured to a frame member of the vehicle. The plate is further guided by spring-pressed pins 27 thereon extending into the cores of the magnet. A cover plate 29 secured to the lever prevents access to the armature 25. In Fig. 1, the pawl and magnet are arranged above the rack. The circuit of the magnet shown in Fig. 1 includes leads d, f, a push-button switch 16 on the hand lever and the switch 17 which is also that for the engine ignition circuit b, c and may be closed only by a special key. Thus the pawl 13 may be disengaged to release the brake by closing the switch 16 only when the switch 17 also has been closed. In addition to the ignition switch an additional key-operated switch may be provided whereby the brake may be released by persons such as garage workers who are not, however, authorized to start the engine. The lever may be provided with a positive locking device for preventing movement in both directions instead of with the ratchet-and-pawl device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB381535A GB451256A (en) | 1935-02-06 | 1935-02-06 | Improvements relating to the control of manually operable brakes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB381535A GB451256A (en) | 1935-02-06 | 1935-02-06 | Improvements relating to the control of manually operable brakes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB451256A true GB451256A (en) | 1936-07-31 |
Family
ID=9765422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB381535A Expired GB451256A (en) | 1935-02-06 | 1935-02-06 | Improvements relating to the control of manually operable brakes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB451256A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2210344A (en) * | 1987-10-01 | 1989-06-07 | Eric Jeffrey Edmunds | Anti-theft lock acting on vehicle brakes |
| GB2262075A (en) * | 1991-12-06 | 1993-06-09 | Reginald John Williams | Vehicle anti-theft device |
| WO2004056629A1 (en) * | 2002-12-23 | 2004-07-08 | Per Espen Vik | Device of a brake system |
| CN110395277A (en) * | 2019-08-01 | 2019-11-01 | 广东韶钢松山股份有限公司 | Reduce the method and drone version tractor of tractor failure influence time |
-
1935
- 1935-02-06 GB GB381535A patent/GB451256A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2210344A (en) * | 1987-10-01 | 1989-06-07 | Eric Jeffrey Edmunds | Anti-theft lock acting on vehicle brakes |
| GB2210344B (en) * | 1987-10-01 | 1991-09-04 | Eric Jeffrey Edmunds | Anti-theft lock |
| GB2262075A (en) * | 1991-12-06 | 1993-06-09 | Reginald John Williams | Vehicle anti-theft device |
| WO2004056629A1 (en) * | 2002-12-23 | 2004-07-08 | Per Espen Vik | Device of a brake system |
| CN110395277A (en) * | 2019-08-01 | 2019-11-01 | 广东韶钢松山股份有限公司 | Reduce the method and drone version tractor of tractor failure influence time |
| CN110395277B (en) * | 2019-08-01 | 2020-12-04 | 广东韶钢松山股份有限公司 | Method for reducing influence time of tractor fault and unmanned tractor |
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