GB586294A - Improvements relating to colliery winding and like machinery - Google Patents
Improvements relating to colliery winding and like machineryInfo
- Publication number
- GB586294A GB586294A GB17049/44A GB1704944A GB586294A GB 586294 A GB586294 A GB 586294A GB 17049/44 A GB17049/44 A GB 17049/44A GB 1704944 A GB1704944 A GB 1704944A GB 586294 A GB586294 A GB 586294A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cylinders
- weights
- pistons
- fluid
- valve
- 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
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/24—Operating devices
- B66D5/26—Operating devices pneumatic or hydraulic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D2700/00—Capstans, winches or hoists
- B66D2700/03—Mechanisms with latches or braking devices in general for capstans, hoists or similar devices as well as braking devices actuated electrically or by fluid under pressure
- B66D2700/035—Fluid operated braking devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
586,294. Fluid-pressure controlled brakes. WILD & CO., Ltd., M. B., and BATTY, A. W. H. Sept. 6, 1944, No. 17049. [Class 103 (i)] [Also in Group XXX] In a winding drum brake mechanism of the kind in which brakes co-operating with drums are applied by weights and released by hydraulic or pneumatic means, additional hydraulic or pneumatic means counteract in part the brake applying weights and are put into and out of action by valve mechanism. As shown the winding drums a are on a common shaft and clutching means (not shown) are provided so that both drums may rotate together or alternatively one drum may remain stationary while the other rotates. Brake shoes b are applied by weights c and are released by the action of hydraulic or pneumatic pistons d and cylinders e. The weights c are counteracted in part by cylinders n driving pistons m secured to the pistons d. The supply of fluid to the cylinders n is controlled by a valve s the setting of which is determined by the relative position of levers u, t which also operate respective isolating valves q controlling fluid supply to the cylinders e. In operation when the levers u, t are set to position the isolating valves q to supply fluid pressure to both the cylinders e, the valve s is set by a linkage y coupled to the levers u, t to supply fluid to the cylinders n. Normal control of the brakes is effected by the pistons d under the control of a valve p and lever v. When one drum is to remain stationary the respective lever u, t is manipulated to cut off pressure from the respective cylinder e and due to the linkage s this causes pressure to be cut off from both cylinders n so that the full force of the respective weight c is applied to the brake of the active drum The force exerted by either piston m may be half the corresponding weight c.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB17049/44A GB586294A (en) | 1944-09-06 | 1944-09-06 | Improvements relating to colliery winding and like machinery |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB17049/44A GB586294A (en) | 1944-09-06 | 1944-09-06 | Improvements relating to colliery winding and like machinery |
Publications (1)
Publication Number | Publication Date |
---|---|
GB586294A true GB586294A (en) | 1947-03-13 |
Family
ID=10088335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB17049/44A Expired GB586294A (en) | 1944-09-06 | 1944-09-06 | Improvements relating to colliery winding and like machinery |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB586294A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2677442A (en) * | 1951-07-16 | 1954-05-04 | William T Bell | Selective fluid pressure brake with emergency weight operator |
-
1944
- 1944-09-06 GB GB17049/44A patent/GB586294A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2677442A (en) * | 1951-07-16 | 1954-05-04 | William T Bell | Selective fluid pressure brake with emergency weight operator |
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