Cable lifting device
US3945502A · kind A · utility
Inventor
Key dates
| Filing date | Jul 18, 1974 |
| Grant date | Mar 23, 1976 |
| Priority date | — |
| Expiry date | Jul 18, 1994 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66C23/18
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A device for lifting cables to an overhead structure is disclosed. The device includes an A-frame jib pivotally supported through a pair of yoked clevises on an elongated shaft fixed to a base clamping member. The uppermost section of the jib includes a head assembly having a stationary shaft to which a pulley is rotatably mounted and a bifurcated purchase is pivotally mounted. A hoist is hung from the purchase for lifting cables to the overhead structure. An adjustable guy line or boom hoist cable is secured at one end of the head assembly and at the other end to the overhead structure. Any adjustment made to the boom hoist caable will be reflected by a corresponding pivotal movement of the jib about its yoked clevis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.