GB1500271A - Lift safety device - Google Patents
Lift safety deviceInfo
- Publication number
- GB1500271A GB1500271A GB5090173A GB5090173A GB1500271A GB 1500271 A GB1500271 A GB 1500271A GB 5090173 A GB5090173 A GB 5090173A GB 5090173 A GB5090173 A GB 5090173A GB 1500271 A GB1500271 A GB 1500271A
- Authority
- GB
- United Kingdom
- Prior art keywords
- car
- hydraulic
- catch gear
- ram
- gear
- 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
- B66B5/028—Safety devices separate from control system in case of power failure, for hydraulical lifts, e.g. braking the hydraulic jack
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Types And Forms Of Lifts (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
1500271 Elevator catch gear BECKER EQUIPMENT & LIFTS Ltd 3 Feb 1975 [1 Nov 1973] 50901/73 Heading B8L Safety gear for a lift car 10 vertically movable in a shaft 12 by an hydraulic piston and cylinder arrangement 13, 14, 15 comprises an hydraulic ram 21, 22, 23 in hydraulic communication with the chamber 16 of the car lifting ram 13, 14, 15 and which maintains catch gear 18 on the car 10 in the inoperative position unless the hydraulic pressure falls below a predetermined level when the car 10 would otherwise fall. The catch gear 18 comprising cams is spring biased towards the operative position in which it locks the lift car to guide rails 11 along which the car moves. The hydraulic communication between the pressure chambers 23 and 16 of the two rams is either by means of a tube 24, passing through the cylinder rod 13 of the lifting ram or by means of loose tubing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5090173A GB1500271A (en) | 1973-11-01 | 1973-11-01 | Lift safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5090173A GB1500271A (en) | 1973-11-01 | 1973-11-01 | Lift safety device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1500271A true GB1500271A (en) | 1978-02-08 |
Family
ID=10457827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5090173A Expired GB1500271A (en) | 1973-11-01 | 1973-11-01 | Lift safety device |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1500271A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2025635A1 (en) * | 2007-08-16 | 2009-02-18 | William Mark Adams | Movement apparatus |
| CN107381290A (en) * | 2017-09-07 | 2017-11-24 | 山东天和纸业有限公司 | Lift Cargo Lift anti-falling safety device and lifting Cargo Lift |
| CN108100801A (en) * | 2018-01-04 | 2018-06-01 | 桐城市靖伦塑料有限公司 | Hydraulic elevator safety device |
-
1973
- 1973-11-01 GB GB5090173A patent/GB1500271A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2025635A1 (en) * | 2007-08-16 | 2009-02-18 | William Mark Adams | Movement apparatus |
| CN107381290A (en) * | 2017-09-07 | 2017-11-24 | 山东天和纸业有限公司 | Lift Cargo Lift anti-falling safety device and lifting Cargo Lift |
| CN107381290B (en) * | 2017-09-07 | 2023-09-19 | 山东天和纸业有限公司 | Lifting goods elevator |
| CN108100801A (en) * | 2018-01-04 | 2018-06-01 | 桐城市靖伦塑料有限公司 | Hydraulic elevator safety device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |