GB531936A - Improvements in operating gear for automatic slack adjusters of vehicle brakes - Google Patents

Improvements in operating gear for automatic slack adjusters of vehicle brakes

Info

Publication number
GB531936A
GB531936A GB2288139A GB2288139A GB531936A GB 531936 A GB531936 A GB 531936A GB 2288139 A GB2288139 A GB 2288139A GB 2288139 A GB2288139 A GB 2288139A GB 531936 A GB531936 A GB 531936A
Authority
GB
United Kingdom
Prior art keywords
rod
lever
casing
slack
brake
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
GB2288139A
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.)
Haldex AB
Original Assignee
Bromsregulator Svenska AB
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 Bromsregulator Svenska AB filed Critical Bromsregulator Svenska AB
Priority to GB2288139A priority Critical patent/GB531936A/en
Publication of GB531936A publication Critical patent/GB531936A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
    • B61H15/00—Wear-compensating mechanisms, e.g. slack adjusters

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

531,936. Adjusting brakes. SVENSKA AKTIEBOLAGET BROMSREGULATOR, and BROWALL, B. H. Aug. 8, 1939, No. 22881. [Class 103 (i)] Relates to operating means for automatic slack-adjusters that act both to increase and decrease slack and are arranged as at 7 in one of a pair of pull-rods 5, 40 connected to levers 2, 4 linked together as at 3 and operated as by a cylinder 1. In adjusters of this kind and as described for instance in Specification 418,492, the rod 5 is in two parts relatively slidable under the control of a casing 7 slidable on the rod and adapted to be moved in one direction at brake application against the action of a spring 8 and in the other direction at brake release. In order to reduce the reaction of the spring 8 on the brake piston, the operating rod 9, for the casing 7, in the arrangement shown in Fig. 1, instead of being connected to the lower end of the lever 4 is connected to a lever 11 linked by a rod 12 to the lever 2 so as to increase the leverage. As shown, the levers 2, 4 are adapted selectively to be connected by either of two links 3, 3a to vary the brake applying leverage according to the vehicle load. In Fig. 4, the operating rod 9 for the casing 7 is connected to the lever 4 but operates the casing through a lever 13a pivoted to the casing at 21 and bearing by a roller 22 on the rod 5 so that the leverage is increased. The increase of leverage reduces the extent of movement of the casing and thus of the slack reduction at a single brake operation and in order that an abnormally excessive slack may be reduced at one brake operation the lever 13a may be adapted to engage a projection 25 on the casing. after a predetermined movement so that it then has the same movement as the rod 9. The lever 13a may be arranged to abut on the flange 23 on the rod 5 below the pivot 21 near the end of the release movement so as to move the casing 7 relatively to the rod 5, sufficiently to lock the adjuster against slack-increasing action due to shocks. In a further arrangement, the lever 13a is so shaped that it ceases to be moved by the rod 9 after a pre-determined movement.
GB2288139A 1939-08-08 1939-08-08 Improvements in operating gear for automatic slack adjusters of vehicle brakes Expired GB531936A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2288139A GB531936A (en) 1939-08-08 1939-08-08 Improvements in operating gear for automatic slack adjusters of vehicle brakes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2288139A GB531936A (en) 1939-08-08 1939-08-08 Improvements in operating gear for automatic slack adjusters of vehicle brakes

Publications (1)

Publication Number Publication Date
GB531936A true GB531936A (en) 1941-01-14

Family

ID=10186540

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2288139A Expired GB531936A (en) 1939-08-08 1939-08-08 Improvements in operating gear for automatic slack adjusters of vehicle brakes

Country Status (1)

Country Link
GB (1) GB531936A (en)

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