GB312107A - Improvements in safety suspending appliances for lift cages and the like - Google Patents
Improvements in safety suspending appliances for lift cages and the likeInfo
- Publication number
- GB312107A GB312107A GB508928A GB508928A GB312107A GB 312107 A GB312107 A GB 312107A GB 508928 A GB508928 A GB 508928A GB 508928 A GB508928 A GB 508928A GB 312107 A GB312107 A GB 312107A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cage
- frame
- brakes
- pilot
- guides
- 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
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
312,107. Schank, A., and Bittel, O. Feb. 17, 1928. Catch gear of mine-cage type.-A safety suspending appliance for lift cages &c. has a frame movable relatively to the cage and carrying the main brakes, the frame also carrying pilot brakes, which are normally kept out of action by triggers operated by a spring-pressed plunger on breakage of the winding cable, so as to cause the pilot brakes to be applied, the subsequent movement of the cage applying the main brakes. The cage b has uprights c on which a horizontal frame d slides. Brackets n on the frame carry co-axial rods o provided at their ends with brake shoes p and forming the pilot brakes. The pilot brakes are adapted to be pressed against the guides a by springs r but are normally retained out of action by pivoted bent levers s connected to a vertically slidable plate v. The cage is suspended from the winding cable by a frame b<1> bearing through a coil spring y on a leaf spring x mounted in a frame x<1> to which the cable is connected. When the rope breaks, the coil spring presses a plunger w against the plate v thus releasing the bent levers sand allowing the pilot brakes to engage the guides. As the cage moves downwards relatively to the frame, bent levers j pivoted to the cage push outwards wedge blocks i mounted between the main brake levers f and so cause the main brake shoes g to engage the guides and stop the cage.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB508928A GB312107A (en) | 1928-02-17 | 1928-02-17 | Improvements in safety suspending appliances for lift cages and the like |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB508928A GB312107A (en) | 1928-02-17 | 1928-02-17 | Improvements in safety suspending appliances for lift cages and the like |
Publications (1)
Publication Number | Publication Date |
---|---|
GB312107A true GB312107A (en) | 1929-05-17 |
Family
ID=9789550
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB508928A Expired GB312107A (en) | 1928-02-17 | 1928-02-17 | Improvements in safety suspending appliances for lift cages and the like |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB312107A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2142904A (en) * | 1983-06-15 | 1985-01-30 | Litton Systems Inc | Safety brake for vertical lift |
-
1928
- 1928-02-17 GB GB508928A patent/GB312107A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2142904A (en) * | 1983-06-15 | 1985-01-30 | Litton Systems Inc | Safety brake for vertical lift |
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