Gantry crane for maintenance of incinerators and the like

Details Gantry crane for maintenance of incinerators and the like Gantry crane for maintenance of incinerators and the like

1988-01-15

1989-05-02

Basinger, Sherman D.

Traversing hoists

Having boom shiftable vertically along a linear path

Length of hoisting cable between boom and load decreases...

212166, 212218, 212220, B66C 1900

Patent

active

048260240

ABSTRACT:
A gantry crane for facilitating the installation and removal of cast iron hearth plates in a refractory incinerator includes an elongate rectangular frame assembly having parallel side and parallel end members. An elongate central beam, positioned between and parallel to the side members, is movable along the end members, and a user-actuable lift mechanism is mounted for movement along the central beam. A plurality of support legs support the frame assembly above the hearth plates within the incinerator, and the lift mechanism is positioned over the individual hearth plates by adjusting the positions of both the central beam along the end members and the lift mechanism along the central beam. After raising a hearth plate, the plate can be removed from the incinerator by moving the lift mechanism along the central beam and the central beam along the end members. The size of the gantry crane is adjustable so as to permit use within similarly designed incinerators of various sizes and shapes. A vertically movable door, at one end of the incinerator, can be utilized to engage the gantry crane and thereby secure the crane within the incinerator.

REFERENCES:
patent: 910038 (1909-01-01), Andrews
patent: 1614769 (1927-01-01), Amsler
patent: 1952238 (1934-03-01), Dice
patent: 3826196 (1974-07-01), Wallace
patent: 4648647 (1987-03-01), Patton
patent: 4715762 (1987-12-01), Lanigan

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