Mining machine conveyor with deflectible boom

Details Mining machine conveyor with deflectible boom Mining machine conveyor with deflectible boom

1975-08-14

1977-02-22

Blunk, Evon C.

Conveyors: power-driven

Conveying apparatus entirely supported by mobile ground...

Conveyor shiftably mounted on vehicle

198864, 299 64, B65G 2112

Patent

active

040087972

ABSTRACT:
A mobile mining machine having an elevatable conveyor boom with a vertically deflectible end section. The end section of the boom is connected to the main section of the boom by a pivoted connection to provide relative vertical tilting movement. Stacks of leaf springs fastened flatwise to upper and lower surfaces of the boom side rails at the pivoted connection normally hold the end section in a working position aligned with the main section but enable vertical deflection of the end section when an abnormal and possibly destructive force is applied to the end of the boom.

REFERENCES:
patent: 2388385 (1945-11-01), Cartlidge
patent: 2439219 (1948-04-01), O'Connor
patent: 2606063 (1952-08-01), Clarkson et al.
patent: 2792791 (1957-05-01), Kreissig
patent: 3616893 (1971-11-01), Knadle
patent: 3750858 (1973-08-01), White
patent: 3762532 (1973-10-01), Nelson

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