GB870507A - Improvements in hinged bridging platforms for pit cages - Google Patents
Improvements in hinged bridging platforms for pit cagesInfo
- Publication number
- GB870507A GB870507A GB4005858A GB4005858A GB870507A GB 870507 A GB870507 A GB 870507A GB 4005858 A GB4005858 A GB 4005858A GB 4005858 A GB4005858 A GB 4005858A GB 870507 A GB870507 A GB 870507A
- Authority
- GB
- United Kingdom
- Prior art keywords
- platform
- pivot
- power
- cage
- cages
- 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
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B17/00—Hoistway equipment
- B66B17/14—Applications of loading and unloading equipment
- B66B17/16—Applications of loading and unloading equipment for loading and unloading mining-hoist cars or cages
- B66B17/18—Swinging bridges, e.g. for compensating for differences in level between car or cage and landing
Landscapes
- Types And Forms Of Lifts (AREA)
Abstract
870,507. Bridging devices for pit cages and the like. QUALTER, HALL & CO (SALES) Ltd. Nov. 26, 1959 [Dec. 11, 1958], No. 40058/58. Class 78 (4). A hinged platform a for loading and offloading colliery cages e is freely pivoted to a fixed deck c by a pivot b and has associated therewith a lifting member f which is movable into contact with the platform and retractable independently thereof. The member f is suspended from the platform a by a pivot g and is moved between two extreme positions in which the end f<SP>1</SP> is either up or down by an activator j which is preferably an electric but may be an hydraulic or other power unit. The electrical actuator can only be moved when the power is on, thus, if the power fails the member f is held until the power is re-connected. Fingers l may pivot downwards to allow the cage e to descend when the platform a is not raised out of the path of the cage. If the cage strikes the fingers l as it is rising the platform a pivots upwardly about pivot b.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4005858A GB870507A (en) | 1958-12-11 | 1958-12-11 | Improvements in hinged bridging platforms for pit cages |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4005858A GB870507A (en) | 1958-12-11 | 1958-12-11 | Improvements in hinged bridging platforms for pit cages |
Publications (1)
Publication Number | Publication Date |
---|---|
GB870507A true GB870507A (en) | 1961-06-14 |
Family
ID=10412970
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4005858A Expired GB870507A (en) | 1958-12-11 | 1958-12-11 | Improvements in hinged bridging platforms for pit cages |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB870507A (en) |
-
1958
- 1958-12-11 GB GB4005858A patent/GB870507A/en not_active Expired
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