Scraper-chain conveyor
AssigneeGewerkschaft Eisenhutte Westfalia
InventorHelmut Temme
Life of this patent
Estimating the term…
Abstract
A scraper-chain conveyor, for use in inclined mine workings, comprises a plurality of channel sections joined together end-to-end, and a scraper assembly. Each channel section has a pair of side walls interconnected by a floor plate. The scraper assembly comprises a plurality of scrapers connected to a drive chain. The side walls of the channel sections are shaped to define, together with the floor plates, three vertically-spaced, generally trapezoidal ducts. The uppermost and lowermost ducts provide guidance for the scrapers when the scrapers are respectively in their upper and lower runs. The middle ducts accommodate coupling members, such as toggle bolts, for connecting the channel sections together.
Claims12
A scraper-chain conveyor comprising:
- (a) plurality of channel sections directly joined together end-to-end,
- (b) each channel section having a pair of side walls interconnected by a floor plate,
- (c) a scraper assembly comprising a plurality of scrapers connected to a drive chain,
- (d) the side walls of the channel sections being shaped to define, together with the floor plates, three vertically-spaced ducts,
- (e) the scrapers being guided in the uppermost and lowermost ducts,
- (f) coupling means operatively associated with the middle ducts for connecting the channel sections together,
- (g) said coupling means includes a toggle bolt having a shank provided at each end with an enlarged head,
- (h) each toggle bolt mating with complementary recesses formed in a pair of inserts located at the adjacent ends of the middle ducts of the corresponding side walls of a pair of adjacent channel sections,
- (i) the inserts of each pair including complementary projecting and recessed portions which mate with one another so that free play is provided between the channel sections when they are directly coupled together.
A scraper-chain conveyor channel section comprising:
- (a) a pair of spaced, continuously formed, side walls interconnected by a floor plate and defining three vertically spaced ducts opening inwardly along the inside of the side walls and including an uppermost duct, a middle duct and a lowermost duct,
- (b) the uppermost and the lowermost ducts being effective to provide guidance for a scraper-chain conveyor, and
- (c) coupling means located in the inside of the side walls and at each end of the middle duct to directly connect each channel section to an adjacent section,
- (d) said coupling means including recesses formed at each end of the middle ducts to connectingly engage a toggle bolt having a shank with an enlarged head at each end thereof to provide a freeplay between the channel sections in all directions.
A scraper-chain conveyor comprising:
- (a) a plurality of channel sections directly joined together end-to-end,
- (b) each channel section having a pair of side walls interconnected by a floor plate,
- (c) a scraper assembly comprising a plurality of scrapers to a drive chain,
- (d) the side walls of the channel sections being shaped to define, together with the floor plates, three vertically-spaced ducts,
- (e) the scrapers being guided in the uppermost and lowermost ducts,
- (f) coupling means operatively associated with the middle ducts for connecting the channel sections together,
- (g) the floor plate of each channel section separates the middle duct from the lowermost duct to form an open communication between the uppermost duct and the middle duct,
- (h) the lower edges of a pair of cover strips are rigidly connected to the floor plate of each channel section,
- (i) the upper edges of said cover strips being rigidly connected to the upper edges of the lower portions of the adjacent side walls.
Dependencies are inferred from the claim text.