GB463249A - Improvements in or relating to brake mechanism for road tractors - Google Patents
Improvements in or relating to brake mechanism for road tractorsInfo
- Publication number
- GB463249A GB463249A GB2631335A GB2631335A GB463249A GB 463249 A GB463249 A GB 463249A GB 2631335 A GB2631335 A GB 2631335A GB 2631335 A GB2631335 A GB 2631335A GB 463249 A GB463249 A GB 463249A
- Authority
- GB
- United Kingdom
- Prior art keywords
- trailer
- tractor
- brakes
- pedal
- lever
- 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
- B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
- B60T7/20—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger specially for trailers, e.g. in case of uncoupling of or overrunning by trailer
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
463,249. Vehicle brakes. TAPP, E. T. J. Sept. 23, 1935, No. 26313. [Class 103 (i)] The brakes of a tractor and a trailer vehicle are operated by a common pedal &c. and the transmission for the trailer passes through the coupling the arrangement being such that the proportion of braking power between the two vehicles is varied by fore-and-aft movement of the trailer relatively to the tractor, the trailer brake application being accentuated and decreased respectively by overrun and separation of the trailer relatively to the tractor and the' tractor brake application being correspondingly decreased and increased. A swiveltree d pivoted at f on a plunger e is connected by links h, i to arms on cross-shafts c, c<1> operated by pedal b and hand-lever a respectively. The plunger e is connected by cable j to a push rod k slidable in the tractor portion of the coupling and engaging a lever l on the trailer connected by rod n to the trailer brakes. Rods p, q are connected to the tractor brakes. The brakes may thus first be applied lightly by the hand lever, and the application be completed by the pedal. In order that the pedal stroke may be sufficient to apply the brakes completely by the pedal alone, the swivel-tree may have a stop g to prevent its movement in such an application and thus transmit the pedal movement without reduction. The plunger e may be connected to the swivel-tree at a point nearer to the hand connection than to the pedal connection. When the trailer brake has been manually applied, relative movement between the trailer and tractor turns the lever l due to its abutment on the rod k and thus effects a variation of the trailer brake pressure and an inverse variation of the tractor brake pressure. The extent of this action is determined by screw adjustment of the rod n and the adjustment may be such that the tractor brakes may be applied lightly and the trailer brake be applied only by overrun of the trailer. The coupling may be such as described in Specification 463,247 the push-rod k being mounted in the cross-head of that coupling and make contact with a lever pivoted on the forked draw-bar when the cross-head is embraced by the claws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2631335A GB463249A (en) | 1935-09-23 | 1935-09-23 | Improvements in or relating to brake mechanism for road tractors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2631335A GB463249A (en) | 1935-09-23 | 1935-09-23 | Improvements in or relating to brake mechanism for road tractors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB463249A true GB463249A (en) | 1937-03-23 |
Family
ID=10241681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2631335A Expired GB463249A (en) | 1935-09-23 | 1935-09-23 | Improvements in or relating to brake mechanism for road tractors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB463249A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2522855A (en) * | 1947-12-23 | 1950-09-19 | George Miller | Tow-bar brake actuator |
-
1935
- 1935-09-23 GB GB2631335A patent/GB463249A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2522855A (en) * | 1947-12-23 | 1950-09-19 | George Miller | Tow-bar brake actuator |
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