GB544423A - Improvements relating to hoisting gear - Google Patents
Improvements relating to hoisting gearInfo
- Publication number
- GB544423A GB544423A GB1647340A GB1647340A GB544423A GB 544423 A GB544423 A GB 544423A GB 1647340 A GB1647340 A GB 1647340A GB 1647340 A GB1647340 A GB 1647340A GB 544423 A GB544423 A GB 544423A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pulleys
- driven
- hoisting gear
- differential
- cosway
- 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
- B66D1/26—Rope, cable, or chain winding mechanisms; Capstans having several drums or barrels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D2700/00—Capstans, winches or hoists
- B66D2700/01—Winches, capstans or pivots
- B66D2700/0125—Motor operated winches
- B66D2700/0166—Winches with multiple drums or with drums with multiple parts of different diameter
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
544,423. Differential hoisting gear. COSWAY (SALES), Ltd., and COSWAY, G. P. Nov. 14,1940, No. 16473. [Class 78 (v)] A differential hoisting gear has two independent pulleys 11, 12 each driven by its own motor selectively in either direction. A single cable 17 passes round the pulleys and in one bight is suspended a counter-weight 18 and in the other the load 16. The pulleys may be of the same diameter and driven at different speeds, or of different diameters and driven at the same speed. When both pulleys turn in the same direction a full differential effect is obtained, by stopping one or the other of the motors either of two hoisting speeds can be selected, and by driving the pulleys in opposite directions a top-speed lift or drop is attained. The pulleys are of capstan form and a sufficient number of turns of the cable is wound round each to grip adequately. The counterweight 18 is approximately 30 degrees of the maximum load, and electric motors are preferably employed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1647340A GB544423A (en) | 1940-11-14 | 1940-11-14 | Improvements relating to hoisting gear |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1647340A GB544423A (en) | 1940-11-14 | 1940-11-14 | Improvements relating to hoisting gear |
Publications (1)
Publication Number | Publication Date |
---|---|
GB544423A true GB544423A (en) | 1942-04-13 |
Family
ID=10077968
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1647340A Expired GB544423A (en) | 1940-11-14 | 1940-11-14 | Improvements relating to hoisting gear |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB544423A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105947913A (en) * | 2016-07-18 | 2016-09-21 | 泉州市劲力工程机械有限公司 | Bidirectional tractor |
-
1940
- 1940-11-14 GB GB1647340A patent/GB544423A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105947913A (en) * | 2016-07-18 | 2016-09-21 | 泉州市劲力工程机械有限公司 | Bidirectional tractor |
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