Hand tool with toothed rotors for dislodging material from a sur

Details Hand tool with toothed rotors for dislodging material from a sur Hand tool with toothed rotors for dislodging material from a sur

1982-10-19

1985-03-05

Peters, Jimmy C.

Cutlery

Perforating or indenting implements

Traveling roller

30366, 30172, 15236R, A47L 1308, B26F 132

Patent

active

045022232

ABSTRACT:
A scarifying tool has a plurality of modules, each module consisting of a pair of cutter discs with bevelled teeth, rotatably mounted at an angle to the direction of travel to provide a sideways tearing action on the material to be dislodged as the discs are moved along the surface of the roof. Each module is mounted independently, to provide an independent suspension having several degrees of freedom. Adjustable depth control is provided by moving the discs relative to substrate contacting members to vary the depth of penetration of the cutters below the skids.

REFERENCES:
patent: 633465 (1899-09-01), Mertes
patent: 2435349 (1948-02-01), Hall
patent: 2471763 (1949-05-01), Merrick
patent: 2471793 (1949-05-01), Merrick
patent: 3123911 (1964-03-01), Snyder
patent: 3281938 (1966-11-01), Lee
patent: 3389466 (1968-06-01), Parris
patent: 3514854 (1970-06-01), Norfleet
patent: 3763563 (1973-10-01), Ott
patent: 4072197 (1978-02-01), Dunlop
patent: 4274202 (1981-06-01), Petrick

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