GB443784A - Improvements in or relating to braking apparatus for trailer vehicles - Google Patents

Improvements in or relating to braking apparatus for trailer vehicles

Info

Publication number
GB443784A
GB443784A GB25448/34A GB2544834A GB443784A GB 443784 A GB443784 A GB 443784A GB 25448/34 A GB25448/34 A GB 25448/34A GB 2544834 A GB2544834 A GB 2544834A GB 443784 A GB443784 A GB 443784A
Authority
GB
United Kingdom
Prior art keywords
lever
brakes
trailer
bar
pivoted
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
GB25448/34A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Projectile & Engineering Compa
Original Assignee
Projectile & Engineering Compa
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
Application filed by Projectile & Engineering Compa filed Critical Projectile & Engineering Compa
Publication of GB443784A publication Critical patent/GB443784A/en
Expired legal-status Critical Current

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)
  • Hydraulic Control Valves For Brake Systems (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)
  • Braking Systems And Boosters (AREA)

Abstract

443,784. Trailer vehicle brakes. PROJECTILE & ENGINEERING CO., Ltd., New Road, Wandsworth Road, London. Sept. 4, 1934, No. 25448. Convention date, March 28. [Class 103 (i)] Trailer-vehicle brakes of the kind that are applied by the overrun of the trailer when the towing vehicle is retarded comprise a lever connected to the trailer draw-bar and connected to the brakes, a second lever pivoted to the first lever and also connected to the brakes and a non-fluid frictional shock-absorber for preventing too sudden application and release of the brakes and comprising a damping device disposed in the central plane of the first lever. The lever 3 pivoted at 4 to the trailer forecarriage 1 is connected at 5 to the draw-bar 2 and by the chain 24, rod 22 and equalizer bar 21 to the cam-shaft levers 16 of the brakes. The lever 3 as shown is of U-form at its upper part. The shock-absorber comprises a damper bar 25 connected to lever 3 and sliding between a pair of spring-pressed friction members 26, 27, the pressure being adjustable by nuts 38. The brakes may also be applied by the lever 7 pivoted at 8 to the lever 3 and connected by the chain 23 to the rod 22. The lever 7 may be operated by hand or by a chain 11 extending to the towing vehicle whereby the brakes are applied in the event of the trailer breaking away from the tractor. The lever 7 may be locked in an applied position by a pawl operated by a lever 10 and engaging a ratchet 6 on the lever 3. Operation of the brakes by the lever 3 can be prevented when desired by the engagement of a pawl 42 with a stop 40 on the rod 25. The pawl may be controlled from the driver's cab by a cable 43.
GB25448/34A 1934-03-28 1934-09-04 Improvements in or relating to braking apparatus for trailer vehicles Expired GB443784A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE443784X 1934-03-28

Publications (1)

Publication Number Publication Date
GB443784A true GB443784A (en) 1936-03-04

Family

ID=6531477

Family Applications (3)

Application Number Title Priority Date Filing Date
GB25448/34A Expired GB443784A (en) 1934-03-28 1934-09-04 Improvements in or relating to braking apparatus for trailer vehicles
GB7417/35A Expired GB443807A (en) 1934-03-28 1934-09-04 Improvements in or relating to braking apparatus for trailer vehicles
GB35720/35A Expired GB443834A (en) 1934-03-28 1934-09-04 Improvements in or relating to braking apparatus for trailer vehicles

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB7417/35A Expired GB443807A (en) 1934-03-28 1934-09-04 Improvements in or relating to braking apparatus for trailer vehicles
GB35720/35A Expired GB443834A (en) 1934-03-28 1934-09-04 Improvements in or relating to braking apparatus for trailer vehicles

Country Status (1)

Country Link
GB (3) GB443784A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0426922A1 (en) * 1989-11-06 1991-05-15 Christian Hervier Brake lever with four-bar linkage and with self assistance for trailer

Also Published As

Publication number Publication date
GB443834A (en) 1936-03-06
GB443807A (en) 1936-03-04

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