GB432861A - Improvements in and relating to mechanism for lifting floating bodies - Google Patents
Improvements in and relating to mechanism for lifting floating bodiesInfo
- Publication number
- GB432861A GB432861A GB1072234A GB1072234A GB432861A GB 432861 A GB432861 A GB 432861A GB 1072234 A GB1072234 A GB 1072234A GB 1072234 A GB1072234 A GB 1072234A GB 432861 A GB432861 A GB 432861A
- Authority
- GB
- United Kingdom
- Prior art keywords
- motor
- drum
- hook
- shaft
- rope
- 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
- B66D1/28—Other constructional details
- B66D1/40—Control devices
- B66D1/48—Control devices automatic
-
- 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
- B66D2700/0108—Winches, capstans or pivots with devices for paying out or automatically tightening the cable
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
432,861. Winches. POLLAK, J. E., 20, Holborn, London.-(Kampnagel Akt.- Ges. vorm. Nagel & Kaemp; 4, Barmbeckerstrasse, Hamburg, Germany) April 10, 1934, No. 10722/35. Divided out of 433,392, under which a Specification was laid open to inspection under Sect. 91 of the Acts, Jan. 23, 1935. [Class 78 (v)] [See also Group XXXIII] In winches for lifting and lowering floating bodies which are rising and falling owing to wave motion, means is provided for giving the lifting hook a similar up-and-down movement to that of the body before attachment of the hook thereto, thus preventing collisions between the heavy hook and the body, which may be a fragile structure, such as a sea-plane. The hook 12 is carried by a rope 11 wound round a drum 10 freely mounted on a shaft 19 and on an extension 16 of the casing of a main motor 13. The motor pinion 26 drives the drum 10 through a gear-wheel 25 meshing with a toothed ring 27 fixed inside the drum 10, the wheel 25 being carried on a frame 18 fixed to the shaft 19. A secondary drum 50 is fixed to the shaft 19 which is driven through pinions 21, 22 by a secondary motor 14. A cable 51 wound on the drum 50 passes freely through a guide 52 on the hook 12. Fixed to the drum 50 is a ratchet wheel 30 adapted to be locked from rotation in one direction by pawls which are automatically electrically retracted when the current to the motor 13 is switched off. In operation the cable 51 is attached to the floating body and the effect of the motor 14, which may be electric or weight-operated, is to maintain the cable 51 taut. The shaft 19 thus oscillates in time with the wave motion, and imparts its swing to the drum 10, the motor pinion 26 being held against rotation, when the motor 13 is not energized, by an automatic brake 28. The hook 12 thus rises and falls with the waves, and its position relative to the floating body can be adjusted by operation of the motor 13, thus facilitating attachment. On energizing the motor 13 the ratchet 30 is gripped and therefore the shaft 19 held stationary, thus allowing the rope 11 to lift the load. The motor 14 may be replaced by a weight attached to a rope, or may be arranged inside the drum 10. The differential effect on the hook 12 may be obtained by two separate drums, one driven by the motor 13 and the other by the motor 14, the drums carrying the ends of a single rope reaved over a pulley on the hook. Specification 433,392 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1072234A GB432861A (en) | 1934-04-10 | 1934-04-10 | Improvements in and relating to mechanism for lifting floating bodies |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1072234A GB432861A (en) | 1934-04-10 | 1934-04-10 | Improvements in and relating to mechanism for lifting floating bodies |
Publications (1)
Publication Number | Publication Date |
---|---|
GB432861A true GB432861A (en) | 1935-08-02 |
Family
ID=9973082
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1072234A Expired GB432861A (en) | 1934-04-10 | 1934-04-10 | Improvements in and relating to mechanism for lifting floating bodies |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB432861A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102992222A (en) * | 2012-12-11 | 2013-03-27 | 武汉科技大学 | Lifting appliance of draw shaft video probe |
CN112299276A (en) * | 2020-11-05 | 2021-02-02 | 庞华俊 | Electric hoist for hoisting equipment |
-
1934
- 1934-04-10 GB GB1072234A patent/GB432861A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102992222A (en) * | 2012-12-11 | 2013-03-27 | 武汉科技大学 | Lifting appliance of draw shaft video probe |
CN102992222B (en) * | 2012-12-11 | 2014-10-08 | 武汉科技大学 | Lifting appliance of draw shaft video probe |
CN112299276A (en) * | 2020-11-05 | 2021-02-02 | 庞华俊 | Electric hoist for hoisting equipment |
CN112299276B (en) * | 2020-11-05 | 2022-10-25 | 庞华俊 | Electric hoist for hoisting equipment |
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