GB848947A - Improvements in or relating to skips for hoists - Google Patents
Improvements in or relating to skips for hoistsInfo
- Publication number
- GB848947A GB848947A GB9377/58A GB937758A GB848947A GB 848947 A GB848947 A GB 848947A GB 9377/58 A GB9377/58 A GB 9377/58A GB 937758 A GB937758 A GB 937758A GB 848947 A GB848947 A GB 848947A
- Authority
- GB
- United Kingdom
- Prior art keywords
- skip
- door
- cylinder
- ram
- tension
- 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
- B66B17/08—Mining skips
-
- 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
- B66B17/26—Applications of loading and unloading equipment for loading or unloading mining-hoist skips
Landscapes
- Power-Operated Mechanisms For Wings (AREA)
Abstract
848,947. Operating doors of skips in shafts. PREPARATION INDUSTRIELLE DES COMBUSTIBLES. March 24, 1958 [Jan. 23, 1958], -No. 9377/58. 'Class 78 (4). The hydraulic mechanism for opening the door 1 of a skip in a skip hoist is operated through a cylinder 8 from power derived from the variation in tension of the usual balancing cable and is housed beneath and behind the body of the skip. In the construction illustrated liquid normally under pressure in an accumulator 9 can pass through a non-return valve 10 to the cylinder 8 when the tension in the balancing cable is low at the bottom of the wind, and is subsequently compressed in the cylinder 8 by the increasing tension in the balancing cable as the skip rises in its shaft. A valve 11 is subsequently operated automatically, as the skip reaches its discharge position, to connect the cylinder 8 to one end of a double-acting hydraulic ram 7 which acts through a linkage 6, 3, 2 to open the door 1. When the valve 11 is subsequently released the cylinder 8 is connected to the other end of the ram 7 to close the door. The linkage connecting the ram 7 to the door 1 passes over a dead-centre as the door closes to provide a lock. In an alternative construction the door 1 is hinged at its lower end and its opening is normally limited by a stop which is withdrawn hydraulically, should the skip be overwound, to permit the door to be opened beyond its normal position to lie within the plan area of the skip.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR848947X | 1958-01-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB848947A true GB848947A (en) | 1960-09-21 |
Family
ID=9314492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9377/58A Expired GB848947A (en) | 1958-01-23 | 1958-03-24 | Improvements in or relating to skips for hoists |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB848947A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102826434A (en) * | 2011-06-16 | 2012-12-19 | 中煤邯郸第三十一矿山工程有限公司 | Forwards inclined type skip bucket unloading frame hydraulic assisting device |
-
1958
- 1958-03-24 GB GB9377/58A patent/GB848947A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102826434A (en) * | 2011-06-16 | 2012-12-19 | 中煤邯郸第三十一矿山工程有限公司 | Forwards inclined type skip bucket unloading frame hydraulic assisting device |
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