Vehicle mounted temporary roof support

Details Vehicle mounted temporary roof support Vehicle mounted temporary roof support

1979-04-16

1981-02-24

Taylor, Dennis L.

Hydraulic and earth engineering

Earth treatment or control

Shoring, bracing, or cave-in prevention

173 23, 175219, 405290, E21D 1559, E21C 1102

Patent

active

042524750

ABSTRACT:
A temporary roof support for mounting to a mining vehicle comprising a boom pivotally mounted to the vehicle and positioned in front thereof for rotation in a vertical plane and an extensible standard pivotally mounted to the front of said boom. An extensible hydraulic device secured at one end to the standard and at the other end to the boom adjusts the angular relationship therebetween. A transverse beam is mounted to the top of the standard for restricted angular movement.

REFERENCES:
patent: 2574857 (1951-11-01), Ball
patent: 2711634 (1955-06-01), Joy
patent: 2738081 (1956-03-01), Lee
patent: 2772871 (1956-12-01), Caine
patent: 2795934 (1957-06-01), Jenkins
patent: 3892100 (1975-07-01), Jamison
patent: 4026118 (1977-05-01), McCay
patent: 4079792 (1978-03-01), Paul et al.
patent: 4108253 (1978-08-01), Woodford

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