Automatic stone cutter

Details Automatic stone cutter Automatic stone cutter

1983-06-06

1985-06-04

Pate, III, William F.

Boring or penetrating the earth

With self-acting cyclic advance and retraction of tool or...

299 15, E21C 4112

Patent

active

045208808

ABSTRACT:
This invention relates to an automatic stone cutter having a construction in which a base can slide on right and left rails, a cylinder main body having a drill is mounted to the base so as to be capable of elevating in the longitudinal direction and the base moves on the rails in the interlocking arrangement with elevation of the cylinder main body. Moreover, the drill can always bore a hole in a predetermined depth from the surface of a mass of stone even if unevenness exists on the surface of the mass of stone.

REFERENCES:
patent: 561367 (1896-06-01), Badger
patent: 1012569 (1911-12-01), Mowlds
patent: 1482396 (1924-02-01), Hansen
patent: 2341322 (1944-02-01), Hubbell
patent: 3307637 (1967-03-01), Jonsson
patent: 3570563 (1971-03-01), Hall
patent: 3655243 (1972-04-01), Fletcher

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