Mechanical chain adjuster for scraper elevator chains
US4128952A · kind A · utility
21Cited by
10References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 14, 1977 |
| Grant date | Dec 12, 1978 |
| Priority date | — |
| Expiry date | Nov 14, 1997 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2007/0874
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A chain tension maintenance device for use with the bowl loading elevator of the excavating scraper variety which is adjustable to vary the slack in the chain and paddle structure. At least one idler arm having bell crank geometry is pivotally mounted to the elevator frame through a first pivot point. An idler wheel axially mounted at a second pivot point of the idler arm, is urged into tension maintaining contact with the elevator chains by force exerted through the third pivot point of the idler arm by an adjustable turnbuckle grounded to the elevator frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.