GB729043A - Improvements in or relating to hoists - Google Patents
Improvements in or relating to hoistsInfo
- Publication number
- GB729043A GB729043A GB752452A GB752452A GB729043A GB 729043 A GB729043 A GB 729043A GB 752452 A GB752452 A GB 752452A GB 752452 A GB752452 A GB 752452A GB 729043 A GB729043 A GB 729043A
- Authority
- GB
- United Kingdom
- Prior art keywords
- platform
- winch
- pulley
- hoist
- march
- 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
- B66B5/08—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for preventing overwinding
Landscapes
- Invalid Beds And Related Equipment (AREA)
Abstract
729,043. Platform hoists. BRITISH HOIST & CRANE CO., Ltd., and EVANS, P. N. March 24, 1953 [March 24, 1952], No. 7524/52. Class 78 (5). In a platform hoist having an end stop gear actuated by the platform, the control cable 22, which is jerked by the platform as the latter reaches its limit to stop the winch, passes round pulley 30 biased by spring 32 to keep the cable tight. As shown, pulley 30 is carried by piston 29 pressed by the spring 32 to move within cylinder 28. The rope from pulley 30 passes, on its way to the winch drum, round pulley 37 carried by plug 33 rotatably mounted on cylinder 28, so that the pull caused by the platform reaching its upper or lower limit is transmitted to the winch control to switch off the winch. The hoist is preferably of the type set out in Specification 647,525.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB752452A GB729043A (en) | 1952-03-24 | 1952-03-24 | Improvements in or relating to hoists |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB752452A GB729043A (en) | 1952-03-24 | 1952-03-24 | Improvements in or relating to hoists |
Publications (1)
Publication Number | Publication Date |
---|---|
GB729043A true GB729043A (en) | 1955-05-04 |
Family
ID=9834780
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB752452A Expired GB729043A (en) | 1952-03-24 | 1952-03-24 | Improvements in or relating to hoists |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB729043A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5490577A (en) * | 1994-06-22 | 1996-02-13 | Otis Elevator Company | Flexible elevator hitch |
-
1952
- 1952-03-24 GB GB752452A patent/GB729043A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5490577A (en) * | 1994-06-22 | 1996-02-13 | Otis Elevator Company | Flexible elevator hitch |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1311767A (en) | Tower cranes with counterbalancing arm | |
GB729043A (en) | Improvements in or relating to hoists | |
GB814642A (en) | Overload device for hoists and cranes | |
FR2426637A1 (en) | Safety device for load lifting machines - has secondary cable to take load if primary system should fail | |
GB1101788A (en) | A jib crane | |
GB686173A (en) | Improvements relating to power operated hoists or winches | |
GB1074465A (en) | Control device for winches | |
GB267825A (en) | Improvements in luffing cranes | |
GB802732A (en) | Improvements in or relating to rope guides for mine hoist installations | |
GB997993A (en) | A crane | |
GB825671A (en) | A device for maintaining the hoisting cable of cranes under tension | |
GB665527A (en) | Improved hoist | |
GB1462412A (en) | Telescopic crane jibs | |
GB1042557A (en) | Hoist safety device | |
GB992832A (en) | Improvements in or relating to rotatable tower cranes | |
GB681442A (en) | Improvements in or relating to hoists, cranes or the like | |
GB694502A (en) | Improvements in or relating to heavy hoisting blocks and tackle | |
GB2012719A (en) | Crane safety device | |
GB284814A (en) | Improvements in or relating to hoists or derricks | |
GB772959A (en) | Improvements in or relating to hoists | |
GB562005A (en) | Improvements in or relating to winch blocks | |
GB898187A (en) | Improvements in or relating to rotatable tower cranes | |
GB1241831A (en) | Level luffing jib crane | |
GB968398A (en) | A multi-purpose machine adapted to be used as a bucket crane | |
GB731145A (en) | Improvements in or relating to electric chain hoists and the like |