GB568550A - Improvements in or relating to electric lifts - Google Patents
Improvements in or relating to electric liftsInfo
- Publication number
- GB568550A GB568550A GB1098143A GB1098143A GB568550A GB 568550 A GB568550 A GB 568550A GB 1098143 A GB1098143 A GB 1098143A GB 1098143 A GB1098143 A GB 1098143A GB 568550 A GB568550 A GB 568550A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gate
- shaft
- pawl
- lift
- energized
- 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
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/02—Door or gate operation
- B66B13/14—Control systems or devices
- B66B13/16—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Lock And Its Accessories (AREA)
Abstract
568,550. Lift gates. FOTHERGILL, J. R. July 6, 1943, No. 10981. [Class 78 (iii)] Means for holding open a lift gate G against the self-closing action of a weight W &c. comprise a rotatable shaft R having serrations R<x> along one edge with which engages a pawl P mounted on the gate. The pawl P can be raised manually when desired by a handle H and link connection L. The rotation of the shaft R is effected by solenoids A and B, one of which is energized when the landing gate is closed and turns the shaft R out of engagement with the pawl P, and the other energized to return the shaft when the starting button is pressed. A time delay switch may be provided to prevent the car gate from closing before a predetermined period of time. If the lift is stopped between floors, the car gate holding device does not operate and the gate always closes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1098143A GB568550A (en) | 1943-07-06 | 1943-07-06 | Improvements in or relating to electric lifts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1098143A GB568550A (en) | 1943-07-06 | 1943-07-06 | Improvements in or relating to electric lifts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB568550A true GB568550A (en) | 1945-04-10 |
Family
ID=9977856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1098143A Expired GB568550A (en) | 1943-07-06 | 1943-07-06 | Improvements in or relating to electric lifts |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB568550A (en) |
-
1943
- 1943-07-06 GB GB1098143A patent/GB568550A/en not_active Expired
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