Cut-off saws

Details Cut-off saws Cut-off saws

1984-02-28

1985-03-05

Olszewski, Robert P.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

5116577, 83530, 125 1355, B24B 2706

Patent

active

045022518

ABSTRACT:
My invention is particularly adapted to saws for cutting metal, and especially abrasive disc saws, wherein the saw is fixed to a shaft which is rotatable within a bearing located at one end of a rocker arm. A drive motor, preferably an electric motor, is mounted on the other end of the arm and the latter is pivoted intermediate the saw and the motor on a bracket extending upwardly from a base. The arm swings about the pivot to move the saw toward and away from the work to be cut, which work is clamped within a vise secured to the upper surface of the base. The improvement herein disclosed comprises a manually settable timing system for adjusting the amount the saw moves in a direction away from the work, after the cut has been made, so that upward movement of the saw is limited to a position wherein the saw is only a very slight distance above the uppermost surface of the work. The embodiment herein disclosed employs a time delay which is activated when the saw has completed the cut in the work to in turn activate a circuit to move the saw upward. The time delay is correlated with the vertical thickness of the work so as to interrupt the "up" circuit just as the saw leaves the work. The time delay is adjustable for correlation with work of different thickness.

REFERENCES:
patent: 2982056 (1961-05-01), Edqvist
patent: 3465628 (1969-09-01), Komendowski et al.
patent: 4075792 (1978-02-01), Schreiber
patent: 4091698 (1978-05-01), Obear et al.

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