GB389552A - Improvements in brakes - Google Patents
Improvements in brakesInfo
- Publication number
- GB389552A GB389552A GB29351/31A GB2935131A GB389552A GB 389552 A GB389552 A GB 389552A GB 29351/31 A GB29351/31 A GB 29351/31A GB 2935131 A GB2935131 A GB 2935131A GB 389552 A GB389552 A GB 389552A
- Authority
- GB
- United Kingdom
- Prior art keywords
- anchor
- shoes
- shoe
- spring
- drum
- 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
- F16D51/48—Self-tightening brakes with pivoted brake shoes, i.e. the braked member increases the braking action with two linked or directly-interacting brake shoes
- F16D51/50—Self-tightening brakes with pivoted brake shoes, i.e. the braked member increases the braking action with two linked or directly-interacting brake shoes mechanically actuated
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
389,552. Brakes. BENDIX BRAKE CO., 401, North Bendix Drive, South Bend, Indiana, U.S.A. Oct. 22, 1931, No. 29351. Convention date, Oct. 25, 1930. Addition to 378,542. [Class 103 (i).] In an internal-expanding brake wherein the operating member comprises a floating lever disposed within the drum and having cam members disposed between the ends of the shoes or other friction member, as described in the parent Specification, the anchor for the friction member is wedge-shaped and the ends of the friction member conform to the anchor. A pair of floating shoes 48, 50 pivotally connected by an adjusting member 56 to which they are held by a spring 58 have their free ends notched to conform to a wedge-shaped anchor 14 and have also rounded shoulders 66, 70 for engagement by cams 44, 46 upstanding from a floating-operating lever 36 which straddles the anchor and is disposed within the drum and actuated by a cable 40, kept taut in the released position by a spring 80 attached to the cam 46 and the shoe 50. Release springs 72, 74, 76 for the shoes extend therefrom to the anchor plate and to a projection 30 on the anchor 14. The spring 76 is stronger than the spring 74 so that when applying the brake the shoe 48 is first moved and its end slides along the anchor with a radial movement to engage the drum. With normal counterclockwise drum rotation, the shoe 50 does not leave the anchor and with clockwise rotation the shoe 48 does not leave the anchor. The objectionable click caused by the return of the shoes to the anchor is thus avoided. A retaining plate 32 for the shoes is secured to the anchor.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US389552XA | 1930-10-25 | 1930-10-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB389552A true GB389552A (en) | 1933-03-23 |
Family
ID=21902886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29351/31A Expired GB389552A (en) | 1930-10-25 | 1931-10-22 | Improvements in brakes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB389552A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4122672A1 (en) * | 1991-07-09 | 1993-01-14 | Teves Gmbh Alfred | Duo servo drum brake with high braking moment - has pretensioned spring connecting brake shoe to support bearing |
| US5305606A (en) * | 1991-08-16 | 1994-04-26 | Alfred Teves Gmbh | Actuating unit for hydraulic brake systems |
-
1931
- 1931-10-22 GB GB29351/31A patent/GB389552A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4122672A1 (en) * | 1991-07-09 | 1993-01-14 | Teves Gmbh Alfred | Duo servo drum brake with high braking moment - has pretensioned spring connecting brake shoe to support bearing |
| US5400882A (en) * | 1991-07-09 | 1995-03-28 | Alfred Teves Gmbh | Duo-servo drum brake |
| DE4122672C2 (en) * | 1991-07-09 | 2000-11-09 | Continental Teves Ag & Co Ohg | Duo servo drum brake |
| US5305606A (en) * | 1991-08-16 | 1994-04-26 | Alfred Teves Gmbh | Actuating unit for hydraulic brake systems |
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