GB590129A - Improvements in or relating to winches and the like - Google Patents
Improvements in or relating to winches and the likeInfo
- Publication number
- GB590129A GB590129A GB928145A GB928145A GB590129A GB 590129 A GB590129 A GB 590129A GB 928145 A GB928145 A GB 928145A GB 928145 A GB928145 A GB 928145A GB 590129 A GB590129 A GB 590129A
- Authority
- GB
- United Kingdom
- Prior art keywords
- clutch
- spring
- bolt
- shaft
- nut
- 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
- 241000189662 Calla Species 0.000 abstract 1
- 108090000028 MMP12 Proteins 0.000 abstract 1
- 102000003729 Neprilysin Human genes 0.000 abstract 1
- 239000002131 composite material Substances 0.000 abstract 1
- 230000000875 corresponding Effects 0.000 abstract 1
- 239000002965 rope Substances 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/04—Driving gear manually operated
- B66D1/06—Safety cranks for preventing unwanted crank rotation and subsequent lowering of the loads
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
590,129. Winches. GYRAL GEARS, Ltd., and CALLA, W. M. April 13, 1945, No. 9281. [Class 78(v)] In a winch of the kind wherein power is transmitted through a slipping clutch and reduction gearing to a winding drum, pressure is applied to the clutch by two springs, one of which is adjusted initially to give a predetermined adhesion value between the clutch faces and the other of which has hand adjusting means for compressing it and the first spring in order to relax the pressure exerted by the first spring on the clutch members. The driving handle 1 is mounted on a sleeve 2 which is formed integral with a clutch member 4 and is rotatably mounted on a hollow shaft 3. The other member 5 of the clutch forms part of a sleeve 6 which surrounds and is keyed to the shaft 3. A pinion 9 on the shaft 3 engages the gear 10 of a composite pinion 10, 11, 12, the gear 12 of which engages a ring 16 of internal teeth fixed within the casing 30. The gear 11 engages a ring of internal teeth 15 secured to the rope drum 14. The sleeve 3 contains springs 17, 19 which are disposed around bolts 18, 20 and abut at their inner ends against the bolt heads 22, 21. These heads bear against a freely movable cylindrical element 23. The outer end of the spring 17 bears against a plug 24 through which passes freely the bolt 18. A nut 25 on the outer end of the bolt 18 bears against a disc 26a mounted in the sleeve 2, and by adjusting this nut the tension of the spring 17 can be varied. The outer end of the spring 19 bears against a collar 26 which is movable within the shaft 3. The collar is moved inwards by a nut 27 on the bolt 20 which is engaged by a tool inserted through the end of the shaft. By this means the pressure on the clutch elements can be relaxed so that slipping will occur at a load less than that corresponding to the initial setting. This setting is restored by screwing a member 28 inwards along the bolt 20 and continuing to turn it after it abuts against the nut 27. Specifications 519,927 and 537,266 are referred to.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB590129A true GB590129A (en) | 1947-07-09 |
Family
ID=1629729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB928145A Expired GB590129A (en) | 1945-04-13 | Improvements in or relating to winches and the like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB590129A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2196929A (en) * | 1986-09-10 | 1988-05-11 | Vital Chain Block Mfg | Hoist |
-
1945
- 1945-04-13 GB GB928145A patent/GB590129A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2196929A (en) * | 1986-09-10 | 1988-05-11 | Vital Chain Block Mfg | Hoist |
| GB2196929B (en) * | 1986-09-10 | 1990-01-10 | Vital Chain Block Mfg | Manual hoisting apparatus |
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