GB520952A - A new or improved friction brake or clutch device permitting unidirectional relative motion - Google Patents
A new or improved friction brake or clutch device permitting unidirectional relative motionInfo
- Publication number
- GB520952A GB520952A GB3197638A GB3197638A GB520952A GB 520952 A GB520952 A GB 520952A GB 3197638 A GB3197638 A GB 3197638A GB 3197638 A GB3197638 A GB 3197638A GB 520952 A GB520952 A GB 520952A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drum
- shoes
- winding
- links
- pair
- 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
- F16D41/00—Freewheels or freewheel clutches
- F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
- F16D41/063—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by moving along the inner and the outer surface without pivoting or rolling, e.g. sliding wedges
Abstract
520,952. Ratchet clutches. NEAL & CO., Ltd., R. H., and NEAL, N. R. Nov. 4, 1938, No. 31976. [Class 80 (ii)] [Also in Groups XXXIV and XXX] A device for permitting uni-directional rotation comprises two coaxial members, one stationary or held stationary for the time being and the other rotary, a shoe or shoes connected each by a pair of links to the rotary member and means for urging the shoes into frictional engagement with the other member, the links being inclined to the radii through the pivots thereof. A self-sustaining device for a hoisting winch is shown and comprises a series of friction shoes 14 connected each to a pair of inclined links 12, 13 pivoted at 11 between a pair of flanges 9, 10 on the winding drum and urged into contact with a brake drum 6 coaxial with the winding- drum by springs 20 abutting on brackets 17 secured to the flange 9. During the winding operation the drum 6 is held stationary by brake blocks 8 and as the winding drum turns counterclockwise the shoes 14 trail with respect to the drum 6 but if the winding-drum should tend to reverse, the shoes 14 are forced against the drum 6. To lower the load, the blocks 8 are released, the drums 6 and the winding drum then turning together. The rotatory. member to which the links are attached may surround the stationary member. According to the Provisional Specification the shoes 14 may be urged against the drum 6 by centrifugal force acting on weights connected by levers to the links 12, 13, the device then coming into action when the winding drum has reached a predetermined speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3197638A GB520952A (en) | 1938-11-04 | 1938-11-04 | A new or improved friction brake or clutch device permitting unidirectional relative motion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3197638A GB520952A (en) | 1938-11-04 | 1938-11-04 | A new or improved friction brake or clutch device permitting unidirectional relative motion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB520952A true GB520952A (en) | 1940-05-08 |
Family
ID=10331187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3197638A Expired GB520952A (en) | 1938-11-04 | 1938-11-04 | A new or improved friction brake or clutch device permitting unidirectional relative motion |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB520952A (en) |
-
1938
- 1938-11-04 GB GB3197638A patent/GB520952A/en not_active Expired
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