Joining shackle or link
US4428187A · kind A · utility
Inventor
Key dates
| Filing date | Apr 30, 1981 |
| Grant date | Jan 31, 1984 |
| Priority date | — |
| Expiry date | Apr 30, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16G15/02
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A joining shackle or link is provided for joining link chain sections and comprises a link shaped assemblage of members including a detachable member or members enabling the joining link to be fitted on the chain sections. Opposed U-shaped parts (1,2) of the assemblage have abutting flanges (3) provided with wedge surfaces (4)and the assemblage is held together by couplers (5) which preload the wedge surfaces and the flanges. This preloading of the joining shackle enables the shackle to better withstand cyclic loading. Two separate U-members (1,2) are preferably present and provide opposed pairs of abutting flanges (3), and the couplers comprise half shells (6) fitting over mid-portions of the U-members and drawable together by screws (8) for preloading of the flanges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.