Pulling tower structure
US4386517A · kind A · utility
5Cited by
5References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 13, 1981 |
| Grant date | Jun 7, 1983 |
| Priority date | — |
| Expiry date | Jul 13, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S72/705
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A pulling tower structure especially adapted for use in automotive frame-straightening equipment is improved by structure providing easy and simple vertical adjustment of a sheave over which a chain or the like is trained for attachment to a vehicle to be repaired so as to assure a straightline pulley. The tower includes an upright support of channel section having within its side walls a pair of members having semicircular notches for selectively receiving a sheave-supporting shaft. Handle structure is provided for enabling manual vertical adjustment of the sheave among selected pairs of transversely alined notches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.