Skip

Details Skip Skip

1991-02-25

1992-06-16

Spar, Robert J.

Material or article handling

Elevator or hoist and loading or unloading means therefor

Valved

414403, B66B 1708

Patent

active

051220288

ABSTRACT:
A skip to be suspended in a mine shaft has a discharge opening at the lower end region of a chamber defined by a skip body. A door closes the opening and can open to discharge material from the chamber. Door operating members at opposite sides of the body are pivotable about a common axis between a closed position in which the door is closed and an open position in which the door is open. Connectors connect the members and the door and the connectors cross the pivot axis as the door moves between the open and closed positions. The connectors can be at least partly flexible. It is desirable for the chamber to be generally of a greater cross-sectional area at a level above the operating members than at the level of the members and for the body to extend above and at least partly cover the operating members.

REFERENCES:
patent: 1317366 (1919-09-01), Greenough et al.
patent: 2649983 (1953-08-01), Finlay et al.
patent: 2790569 (1957-04-01), Leonard
patent: 2828041 (1958-03-01), Leonard
patent: 2969886 (1961-01-01), Taylor et al.
patent: 2995264 (1961-08-01), Thomas
patent: 3052367 (1962-09-01), Clark

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