GB716999A - Improvements in chain hoists - Google Patents
Improvements in chain hoistsInfo
- Publication number
- GB716999A GB716999A GB802052A GB802052A GB716999A GB 716999 A GB716999 A GB 716999A GB 802052 A GB802052 A GB 802052A GB 802052 A GB802052 A GB 802052A GB 716999 A GB716999 A GB 716999A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drums
- chain wheel
- shaft
- ratchet
- wheel
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/18—Power-operated hoists
- B66D3/20—Power-operated hoists with driving motor, e.g. electric motor, and drum or barrel contained in a common housing
- B66D3/22—Power-operated hoists with driving motor, e.g. electric motor, and drum or barrel contained in a common housing with variable-speed gearings between driving motor and drum or barrel
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
716,999. Chain hoists. MABY & CO. March 28, 1952, No. 8020/52. Class 78(5). Double chain wheel 13 elevates load hook 17, the surplus chainage being wound on to drums 25 driven from the wheel 13 by unidirectional clutches 19-20. Thus the motor drives the double chain wheel 13 through gearing 15-14 and shaft 12, the latter having extensions 18 carrying freely the drums 25. The latter are pressed by springs 26 against ratchet 21 (co-operating with pawls 24) freely mounted on the shaft, which are pressed against collars 19 fixed on the shaft. In hoisting, the motor drives chain wheel 13 which drives the drums 25 to wind on the free chains from along guides 30. In lowering, ratchet 21 is held so that the chain wheel lowers the chains, pulling them off the drums which slip against the ratchets 21.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB802052A GB716999A (en) | 1952-03-28 | 1952-03-28 | Improvements in chain hoists |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB802052A GB716999A (en) | 1952-03-28 | 1952-03-28 | Improvements in chain hoists |
Publications (1)
Publication Number | Publication Date |
---|---|
GB716999A true GB716999A (en) | 1954-10-20 |
Family
ID=9844250
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB802052A Expired GB716999A (en) | 1952-03-28 | 1952-03-28 | Improvements in chain hoists |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB716999A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4896662U (en) * | 1972-02-18 | 1973-11-16 | ||
GB2000097A (en) * | 1977-06-25 | 1979-01-04 | Fries Gmbh Heinrich De | Travelling hoists |
CN109279506A (en) * | 2018-11-14 | 2019-01-29 | 温岭市盛开物流设备科技有限公司 | A kind of boom hoisting |
US20200002033A1 (en) * | 2018-06-27 | 2020-01-02 | Xinrong Yao | Portable Binding Device |
US10882724B1 (en) * | 2020-08-10 | 2021-01-05 | Wired Specialty Equipment, LLC | Redundant multi-point chain hoist apparatus |
EP4292973A3 (en) * | 2021-09-23 | 2024-03-13 | Pewag Austria GmbH | Chain drive with double chain wheel, stop device therefor, and chain drive system |
-
1952
- 1952-03-28 GB GB802052A patent/GB716999A/en not_active Expired
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4896662U (en) * | 1972-02-18 | 1973-11-16 | ||
GB2000097A (en) * | 1977-06-25 | 1979-01-04 | Fries Gmbh Heinrich De | Travelling hoists |
FR2395221A1 (en) * | 1977-06-25 | 1979-01-19 | Fries Gmbh Heinrich De | HOIST TROLLEY |
GB2000097B (en) * | 1977-06-25 | 1982-01-06 | Fries Gmbh Heinrich De | Improvements in or relating to travelling hoists |
US20200002033A1 (en) * | 2018-06-27 | 2020-01-02 | Xinrong Yao | Portable Binding Device |
CN109279506A (en) * | 2018-11-14 | 2019-01-29 | 温岭市盛开物流设备科技有限公司 | A kind of boom hoisting |
CN109279506B (en) * | 2018-11-14 | 2024-05-24 | 温岭市盛开物流设备科技有限公司 | Hoisting device |
US10882724B1 (en) * | 2020-08-10 | 2021-01-05 | Wired Specialty Equipment, LLC | Redundant multi-point chain hoist apparatus |
EP4292973A3 (en) * | 2021-09-23 | 2024-03-13 | Pewag Austria GmbH | Chain drive with double chain wheel, stop device therefor, and chain drive system |
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