Surface-chiseling machine

Details Surface-chiseling machine Surface-chiseling machine

1985-08-14

1986-06-17

Whitehead, Harold D.

Metal working

Scale remover or preventor

Scraper or scalper

125 6, 173101, B21C 4300

Patent

active

045947597

ABSTRACT:
A surface-chiseling machine for refractory, concrete or other materials is disclosed, which includes a piston having at its one end a step portion and on a side periphery at its other end a through-hole, and a cylinder forming a first air chamber on a closed side of the step portion of the piston, forming an exhaust channel communicated with the through-hole of the piston and having an air hole for feeding a compressed air to the first air chamber. The cylinder at its rear end is closed with a back head for forming therein a second air chamber, while at its front end is closed with a front head which is provided with a plurality of chisel-inserting holes, into which are inserted chisels with their rear ends being contactable directly with a front face of the piston for providing a striking action on the chisels.

REFERENCES:
patent: 3023485 (1962-03-01), Barthod
patent: 3343246 (1967-09-01), Kelley
patent: 3571874 (1971-03-01), Von Aix
patent: 3680643 (1972-08-01), Cameron

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