Mining or in situ disintegration of hard material – Hard material disintegrating machines – Sidewall-working
Patent
1980-01-28
1981-12-01
Purser, Ernest R.
Mining or in situ disintegration of hard material
Hard material disintegrating machines
Sidewall-working
238219, E21C 3512
Patent
active
043032761
ABSTRACT:
A conveyor chute for chain scraper conveyors, comprises, a plurality of chute sections joined together with a clearance therebetween for free motion. Each of the sections includes a guide plank having a reinforcing plate portion adjacent a respective end thereof and a pin extending outwardly from the reinforcing section. A common connecting plate interconnects the separate sections and it has spaced apart eye openings therethrough into which a respective pin segment extends. The plates have a web between adjacent pins of adjacent sections and the eye openings and the segments are spaced to provide the clearance therebetween. Each guide plank comprises an auger thread plank for coal which is made of a box-like section construction. Each box-like section has an exterior wall covering the pin segments and an inner wall spaced from the exterior wall forming a locking pocket therewith, which receives the locking or connecting plate. The locking or connecting plate has an exterior surface which is flush with the exterior surface of the exterior wall and forms a tread bridge between adjacent sections.
REFERENCES:
patent: 3897108 (1975-07-01), Krohm et al.
patent: 4205882 (1980-06-01), Hauschopp et al.
Braun Ernst
Braun Gert
Halbach & Braun
Purser Ernest R.
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