Lifting and handling equipment unit, especially for shipside operations
US4277053A · kind A · utility
Inventor
Key dates
| Filing date | Sep 29, 1978 |
| Grant date | Jul 7, 1981 |
| Priority date | — |
| Expiry date | Sep 29, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66C13/02
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Under the action of relative motion between a hoisting machine support and a load, a movable component such as a pulley-block carried by the hoisting machine is capable of free displacement under gravity between two end positions of abutment when that end of the movable component which is intended to cooperate with the load is stationary with respect to the load, thereby compensating for any variation in distance between the load and that portion of the hoisting machine which carries the movable component. The equipment unit is designed primarily for hoisting operations performed at sea or on wharves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.