GB727990A - Improvements relating to chain hoists - Google Patents
Improvements relating to chain hoistsInfo
- Publication number
- GB727990A GB727990A GB928252A GB928252A GB727990A GB 727990 A GB727990 A GB 727990A GB 928252 A GB928252 A GB 928252A GB 928252 A GB928252 A GB 928252A GB 727990 A GB727990 A GB 727990A
- Authority
- GB
- United Kingdom
- Prior art keywords
- teeth
- chain
- clutch
- chain hoist
- slipping
- 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
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/54—Safety gear
- B66D1/58—Safety gear responsive to excess of load
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
Abstract
727,990. Chain hoist clutches. YALE & TOWNE MANUFACTURING CO. March 19, 1953 [April 10, 1952], No. 9282/52. Class 78 (5). A slipping clutch is inserted in the electric motor drive to a chain hoist, the clutch slipping at a load less than that which breaks the chain. As shown, motor shaft 1 carries slidable clutch sleeve 5, the teeth 6 of which are pressed by spring 10 into engagement with teeth 7 of loosely-mounted driven pinion 8 which drives the chain hoist. The teeth slope so that when the predetermined load is exceeded the said teeth separate to cut off the transmission, the clatter of the teeth warning the operator. Collar 9 formed on sleeve 5 may be adjustably fixed thereon.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB928252A GB727990A (en) | 1952-04-10 | 1952-04-10 | Improvements relating to chain hoists |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB928252A GB727990A (en) | 1952-04-10 | 1952-04-10 | Improvements relating to chain hoists |
Publications (1)
Publication Number | Publication Date |
---|---|
GB727990A true GB727990A (en) | 1955-04-13 |
Family
ID=9868978
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB928252A Expired GB727990A (en) | 1952-04-10 | 1952-04-10 | Improvements relating to chain hoists |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB727990A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3301533A (en) * | 1965-08-27 | 1967-01-31 | Pfaff & Kendall | Control means for lowering device cables |
CN107879266A (en) * | 2017-11-28 | 2018-04-06 | 华强方特(芜湖)文化科技有限公司 | A kind of high-altitude dancing ball lifting machine |
-
1952
- 1952-04-10 GB GB928252A patent/GB727990A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3301533A (en) * | 1965-08-27 | 1967-01-31 | Pfaff & Kendall | Control means for lowering device cables |
CN107879266A (en) * | 2017-11-28 | 2018-04-06 | 华强方特(芜湖)文化科技有限公司 | A kind of high-altitude dancing ball lifting machine |
CN107879266B (en) * | 2017-11-28 | 2023-06-23 | 华强方特(芜湖)文化科技有限公司 | Ball lifting machine for high altitude dance |
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