GB456733A - Improved automatic adjustment means for gearing having reciprocating or oscillating movement - Google Patents

Improved automatic adjustment means for gearing having reciprocating or oscillating movement

Info

Publication number
GB456733A
GB456733A GB1386635A GB1386635A GB456733A GB 456733 A GB456733 A GB 456733A GB 1386635 A GB1386635 A GB 1386635A GB 1386635 A GB1386635 A GB 1386635A GB 456733 A GB456733 A GB 456733A
Authority
GB
United Kingdom
Prior art keywords
brake
worm
wheel
lever
rack
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
GB1386635A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1386635A priority Critical patent/GB456733A/en
Publication of GB456733A publication Critical patent/GB456733A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/38—Slack adjusters
    • F16D65/40—Slack adjusters mechanical
    • F16D65/52—Slack adjusters mechanical self-acting in one direction for adjusting excessive play
    • F16D65/56—Slack adjusters mechanical self-acting in one direction for adjusting excessive play with screw-thread and nut

Landscapes

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

Abstract

456,733. Cranks, links, and levers. ROWLAND, T. C. E., 49, Silhill Hall Road, Solihull, and PARKER, H., 71, Hazelhurst Road, King's Heath, Birmingham, both in Warwickshire. May 11, 1935, No. 13866. [Class 80 (iii)] [See also Group XXXIV] Automatic adjustment means for brake operating gear including a worm-wheel associated with the part through which a brake lever operates to apply the brake, a transverse pin in the body having a worm meshing with the worm wheel and having a ratchet wheel or other one-way drive device adapted to be operated automatically when excess motion occurs, has the said worm wheel mounted within a body itself mounted on the brake lever. In the form shown in Fig. 1, a body 3 engages a trunnion 4 on the brake lever 1 and is arranged around the actuating rod 2 over which is screwed a sleeve 5 having a worm-wheel 6 formed thereon. This wheel is engaged by a worm 9 mounted on a pin 8 carrying at one end a pair of ratchet wheels 10 with staggered teeth engaging a rack 11 pivoted at 12 to the lever, or to a fixed bracket, and drawn towards the lever by a spring 18. For normal movements, the ratchet wheels do not move far enough relatively to the rack for a tooth to be disengaged. If, however, due to wear, excessive movement is required to apply the brake, a tooth on the wheels will move beyond a tooth on the rack, so that on release of the brake the wheels and worm are given a rotation thus screwing the sleeve over the rod 2. In the construction shown in Fig. 4, a pair of brake shoes 20 are adapted to be expanded by a cam 21 against a drum 19. The cam pin 22 is actuated from a rod 25 through a lever 24 abutting the end 26 of an arm 23 on the pin. The abutting part 28 engages a screw 30 formed with a worm-wheel 31 adapted to be rotated by ratchet wheels engaging a rack 36 mounted by a flexible arm 37 on a lug 38 on the back plate of the brake. According to the Provisional Specification, the invention is applicable to two sections of a rod connected by screw and nut gear and to clutches or brake bands used with epicyclic gearing.
GB1386635A 1935-05-11 1935-05-11 Improved automatic adjustment means for gearing having reciprocating or oscillating movement Expired GB456733A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1386635A GB456733A (en) 1935-05-11 1935-05-11 Improved automatic adjustment means for gearing having reciprocating or oscillating movement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1386635A GB456733A (en) 1935-05-11 1935-05-11 Improved automatic adjustment means for gearing having reciprocating or oscillating movement

Publications (1)

Publication Number Publication Date
GB456733A true GB456733A (en) 1936-11-11

Family

ID=10030817

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1386635A Expired GB456733A (en) 1935-05-11 1935-05-11 Improved automatic adjustment means for gearing having reciprocating or oscillating movement

Country Status (1)

Country Link
GB (1) GB456733A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1285901B (en) * 1966-05-14 1968-12-19 Paul Josef Device for automatic readjustment of the brake play in brake actuators

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1285901B (en) * 1966-05-14 1968-12-19 Paul Josef Device for automatic readjustment of the brake play in brake actuators

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