Suspended valve control device

Details Suspended valve control device Suspended valve control device

1977-05-18

1978-02-14

Taylor, Dennis L.

Supports

Pipe or cable

Extending through plate

61 63, 248357, E21D 1500

Patent

active

040731502

ABSTRACT:
A multiple valve control device is suspended by means of a chain or other flexible supporting means such as a cable from a rod or bar carried on a walking mine-roof support frame, the chain or other flexible supporting means being movable with and/or along the rod or bar and being adjustably hooked or otherwise releasably fastened in any one of a line of recesses in a balance beam secured to the control device.

REFERENCES:
patent: 1870385 (1932-08-01), Seaman et al.
patent: 3125200 (1964-03-01), Kaman
patent: 3295331 (1967-01-01), Blaser et al.
patent: 3431983 (1969-03-01), Jacobson
patent: 3514961 (1970-06-01), Shuttleworth
patent: 3564974 (1971-02-01), Painter
patent: 3884365 (1975-05-01), Thomson

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