Bar-type puller
US4761869A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 1987 |
| Grant date | Aug 9, 1988 |
| Priority date | — |
| Expiry date | Jun 22, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/5387
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A bar-type puller having a cross block with a central section and a pair of end sections with a forcing screw threadably mounted in the central section. A pair of work-engaging members, such as pulling jaws, can be radially and axially adjustably mounted on the cross block by end sections of the cross block having spaced-apart arms to define spaces therebetween which receive the work-engaging members for infinite lateral adjustment along the arms. The work-engaging members have spaced-apart pins which span the top and bottom of the arms, with a slight clearance to facilitate lateral adjustment. The pins are caused to move into binding relation with the cross block when the work-engaging members are under load to lock the members in radially adjusted position. There is also provision for axial adjustment by providing additional spaced pins on the work-engaging members providing an alternate mounting location for the members to the cross block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.