Haulage drive
US4501447A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 1982 |
| Grant date | Feb 26, 1985 |
| Priority date | — |
| Expiry date | Feb 18, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G2201/02
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A link component is adapted for interfitment with like link components to form a flexible chain free of hinge pins and cooperable with a drive sprocket. The link component has complementarily-shaped end parts (10, 11; 10' 11') whereof each is the true or inverted image of the other. Each end part comprises a transverse recess (20) located between transverse walls (21, 22) of which the longitudinally outer wall (22) is shorter than the inner wall (21). The shorter end of the outer wall (22) and the recess (20) have complementary rounded formations so that when the end part of one link (10 or 10') interengages with the end part (11 or 11') of an adjacent link, the respective outer walls (22) locate in the corresponding recess (20). Parallel side braces (12, 12') space the end parts (10, 11; 10' 11') apart through integration therewith and have external surfaces spaced laterally beyond the width of the end parts. A scraper-chain conveyor comprises conveyor line pans (26) and a mining machine movable therealong, said pans having elongate channel sections (13) in which a haulage linkage is located for engagement by drive sprocket means (35) on the machine, said haulage linkage comprisin…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.