GB550348A - Improvements in internally expanding brakes - Google Patents
Improvements in internally expanding brakesInfo
- Publication number
- GB550348A GB550348A GB1131941A GB1131941A GB550348A GB 550348 A GB550348 A GB 550348A GB 1131941 A GB1131941 A GB 1131941A GB 1131941 A GB1131941 A GB 1131941A GB 550348 A GB550348 A GB 550348A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shoes
- carriers
- pair
- drum
- shoe
- 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
-
- 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
- F16D51/00—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like
- F16D51/46—Self-tightening brakes with pivoted brake shoes, i.e. the braked member increases the braking action
- F16D51/54—Self-tightening brakes with pivoted brake shoes, i.e. the braked member increases the braking action with three or more brake-shoes, at least two of them being linked or directly interacting
- F16D51/56—Self-tightening brakes with pivoted brake shoes, i.e. the braked member increases the braking action with three or more brake-shoes, at least two of them being linked or directly interacting mechanically actuated
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
550,348. Internal expanding brakes. KIRKSTALL FORGE, Ltd., and COWELL, F. R. Sept. 4, 1941, No. 11319. [Class 103 (i)] In a brake such as described in Specification 542,112 comprising a pair of carriers adapted to be moved outwardly each to apply a pair of shoes to a drum in such a manner that one end of each shoe is presented to the drum before the other end, the shoes being permitted limited circumferential movement on the carriers, one shoe of each pair is arrested by a stop and one end of one shoe of a pair abuts the adjacent end of a shoe of the other pair whereby the shoes are tilted to press these ends against the drum. As shown, the carriers 10 are. pivoted on rods 11 carried by an adjuster 12 and are forced apart at the upper ends by an expander 17. Two pairs of shoes 19 19a, bear each at one end 21 on rollers 23 carried by the carriers. Stops 27 mounted on the anchor plate of the brake are disposed between adjacent ends of each pair of shoes. When the carriers are moved outwards, the shoe ends 21 are initially pressed against the drum and if the drum is rotating in the direction of the arrow the end 21 of the shoes 19 abuts on the stops 27 while the ends 29a of the shoes 19a abuts on the end 29 of the shoes 19 whereby these ends are forced against the drum and a self energising action is also obtained. The brake is equally effective with the opposite direction of drum rotation the ends 21 of shoes 19a thus abutting on the stops. Springs 24 hold the shoes in normal position in relation to the carriers. In a modification each pair of adjacent rollers 23 is mounted on the ends of a link pivoted at its midpoint to the respective carrier 10 whereby an equalized pressure is applied to' the shoes by the rollers. Automatic adjusting means as described in Specification 550,349, for taking up excessive clearance that would otherwise develop between the shoe ends and the stops 27 as the linings wear, and one form of which is indicated at 30 is provided. An expander may be arranged at both ends of the carriers, the pivot device 11, 12 being dispensed with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1131941A GB550348A (en) | 1941-09-04 | 1941-09-04 | Improvements in internally expanding brakes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1131941A GB550348A (en) | 1941-09-04 | 1941-09-04 | Improvements in internally expanding brakes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB550348A true GB550348A (en) | 1943-01-04 |
Family
ID=9984082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1131941A Expired GB550348A (en) | 1941-09-04 | 1941-09-04 | Improvements in internally expanding brakes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB550348A (en) |
-
1941
- 1941-09-04 GB GB1131941A patent/GB550348A/en not_active Expired
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