Structure for damping the oscillation of building cranes
US4303164A · kind A · utility
1Cited by
6References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 22, 1978 |
| Grant date | Dec 1, 1981 |
| Priority date | — |
| Expiry date | Aug 22, 1998 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F15/28
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An apparatus for inhibiting the oscillation of a vertical crane or similar structure with a horizontal main jib supporting a load hoist apparatus. The main jib has a counter jib which supports a counterweight mass by a linkage system. The linkage system permits the counterweight mass to swing through an arc so that it dampening the swinging movement of the crane. The linkage system also permits the counterweight mass to be vertically adjustable relative to the main jib so as to accommodate crane structure of different sizes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.