Vessel lid mounting and demounting apparatus

Details Vessel lid mounting and demounting apparatus Vessel lid mounting and demounting apparatus

1987-12-29

1989-10-17

Arnold, Bruce Y.

Metal working

Means to assemble or disassemble

With control means energized in response to activator...

29240, 29723, 29711, 29792, 376260, B23P 2100, B23P 1904, G21C 1900

Patent

active

048737607

ABSTRACT:
An apparatus for mounting and demounting a lid of a vessel on and from a body thereof. The lid and the body are fastened to each other by a plurality of stud bolt and nut assemblies. A turntable is supported on a sling to be fixed to the lid, for turning movement in a horizontal plane about a vertical axis passing through a center of the lid. A plurality of operating units are supported by the turntable and are arranged in circumferentially spaced relation on a circle having a diameter equal to that of a pitch circle of the stud bolts. Each of the operating units includes a device for transporting the nuts to and from the stud bolts, and a device for attaching and detaching the stud bolts to and from an end flange of the body of the vessel. A positioning arrangement is provided for moving the turntable in the horizontal plane relatively to the sling so as to bring the operating units into vertical alignment with the stud bolts.

REFERENCES:
patent: 4520446 (1985-05-01), Sato

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