Straight line abrading tool with balancing counterweight

Details Straight line abrading tool with balancing counterweight Straight line abrading tool with balancing counterweight

1978-01-13

1979-03-27

Whitehead, Harold D.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

B24B 2300

Patent

active

041458478

ABSTRACT:
A portable abrading tool having a shoe mounted for straight line reciprocating movement relative to a body, and driven by a reciprocating piston in the body through two spaced gear units, with a counterweight being driven by those gear units to reciprocate essentially with the piston and oppositely from the shoe, and with the counterweight desirably having two enlarged end portions and an intermediate reduced width portion carrying oppositely facing toothed racks engaging the two gear units respectively. The counterweight is desirably confined vertically between the body of the tool and the reciprocating shoe, and is slidably located within recesses in the under surface of the body.

REFERENCES:
patent: 3793781 (1974-02-01), Hutchins
patent: 3932963 (1976-01-01), Hutchins
patent: 4052824 (1977-10-01), Hutchins
patent: 4073349 (1978-02-01), Sumida

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