Self-advancing support for use in the pit of coal or metal mine

Details Self-advancing support for use in the pit of coal or metal mine Self-advancing support for use in the pit of coal or metal mine

1976-03-03

1977-01-11

Taylor, Dennis L.

Supports

Pipe or cable

Extending through plate

248357, E21D 1544

Patent

active

040020371

ABSTRACT:
A self-advancing support for use in the pit of coal or metal mine designed to support the pit roof after the mining operation by a shearer and having a mechanism for enabling the self-advancing support to be moved without using such means as a truck and a lift, said mechanism being housed within the self-advancing support and/or detached therefrom.

REFERENCES:
patent: 2752757 (1956-07-01), Joy
patent: 3693729 (1972-09-01), Blurton et al.
patent: 3898845 (1975-08-01), Plevak et al.

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