Bridge scraper

Details Bridge scraper Bridge scraper

1977-06-07

1978-10-17

Makay, Albert J.

Conveyors: power-driven

Conveyor system for arranging or rearranging stream of items

By laterally or vertically moving successive items in...

198519, 198520, B65G 6528

Patent

active

041204085

ABSTRACT:
A bridge scraper is mounted on a main frame for vertical pivotal movement between a raised inoperative position and an operative position, where the bridge extends generally horizontally and is in wheeled engagement with an outer track of a dump, a scraper chain carried by the bridge extends along the bridge and in an operative position scrapes bulk material from the dump toward the main frame. A slope-breaking assembly is carried by the bridge and is engageable with the dump when the bridge is operative, a rocker mounted on the frame for vertical pivotal movement, has a counterweight arm extending away from the bridge, a linkage connecting the rocker to the bridge is arranged to hold the counterweight arm in a substantially horizontal position when the bridge is operative and imparts a downward pivotal movement to the counterweight arm as said bridge is raised. A bridge-actuating arrangement moves the bridge between inoperative and operative positions.

REFERENCES:
patent: 4037735 (1977-07-01), Althoff

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