Distributor

Details Distributor Distributor

1987-03-11

1988-04-12

Corbin, David H.

Hydraulic and earth engineering

Earth treatment or control

Ground stabilization or reinforcement

91170MP, E21D 2316

Patent

active

047370521

ABSTRACT:
The invention relates to a distributor for controlling hydraulic distribution between hydraulic consumers of a mine roof support unit and hydraulic supply lines extending along a mine working. The distributor comprises a supply block provided with a plurality of pairs of main hose connections and a plurality of branch hose connections. The hose connections of each pair of main hose connections are connected by a respective main passage. Each branch hose connector is connected to a corresponding main passage by a respective branch passage. The supply block is provided with two sets of shut-off valves, the shut-off valves of one valve set being arranged in the main passages, and the shut-off valves of the other valve set being arranged in the branch passages. The hose connections of each pair of main hose connections are connected into a respective hydraulic supply line, and the branch hose connections are connected to the hydraulic consumers of the roof support unit.

REFERENCES:
patent: 4159671 (1979-07-01), Allen
patent: 4327628 (1982-05-01), Weirich et al.
patent: 4379662 (1983-04-01), Block

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