Safety arrester for mine-shaft conveyances using tubing guides

Details Safety arrester for mine-shaft conveyances using tubing guides Safety arrester for mine-shaft conveyances using tubing guides

1981-08-03

1984-04-24

Rollo, Joseph J.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

187 88, 187 81, 187 86, B66B 518

Patent

active

044442939

ABSTRACT:
A safety arrester for mine shaft passenger cages is provided wherein a pair of arresting cams are arranged to straddle the sides of a tubing guide positioned on each side of the mine shaft which tubing guide is used for stabilizing the movement of the cage. If the lifting cable should fail, a spring biased actuation mechanism will move causing the arresting cams to move into contact with the guide. As the cage is falling, the arresting cams act on the surfaces of the tubing guides to deform these surfaces. Also, the surface of the arresting cam comprises a deformable material so that, as the cage is falling, more and more of the surface of the arresting cam comes into contact with the surface of the tubing guide. Thus, the falling cage is gradually brought to a safe stop.

REFERENCES:
patent: 124592 (1872-03-01), Klee
patent: 2507046 (1950-05-01), Pearce
patent: 2561060 (1951-07-01), Lancaster

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