Method and apparatus for installing a cutterhead upon a box hole

Details Method and apparatus for installing a cutterhead upon a box hole Method and apparatus for installing a cutterhead upon a box hole

1975-08-07

1978-05-16

Lanham, C.W.

Metal working

Method of mechanical manufacture

Assembling or joining

175 85, 214512, B23P 1904, B60P 102

Patent

active

040891003

ABSTRACT:
In order to install a heavy cutterhead upon a box hole boring machine, within the confined working space available in underground mining operations, the cutterhead is placed upon a wheeled dolly having a central opening through which the attachment stem of the cutterhead depends downwardly, a temporary bridge including a pair of rails is rested upon the top of the machine frame, and the dolly with cutterhead supported thereon is moved along the bridge to a position where the cutterhead can be attached to the machine. The vertical drive of the machine is then utilized to lift the cutterhead, and the dolly and temporary bridge are removed.

REFERENCES:
patent: 3090514 (1963-05-01), Black, Sr. et al.
patent: 3099323 (1963-07-01), Kelley
patent: 3357582 (1967-12-01), Wittek
patent: 3460638 (1969-08-01), Millsapps, Jr.
patent: 3613906 (1971-10-01), Deyo et al.
patent: 3695363 (1972-10-01), Kelley, Jr.
patent: 3902561 (1975-09-01), Friberg et al.

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