Apparatus for guiding a powered circular saw along an elliptical

Cutting – Rotatable disc tool pair or tool and carrier – With means to support work relative to tool

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Details

834771, 83490, 834772, 83483, B27B 518

Patent

active

045108358

ABSTRACT:
Apparatus for controlling the operating relationship of a rotatably driven circular saw blade to an adjacent workpiece includes a base carrying an elongated slide plate having a longitudinal slot adjacent one end. An indexing assembly is disposed between the base and the elongated slide plate and engages within the slot of the slide plate to constrain one of its ends to longitudinal movement, and a crank rotatably connects the base to the medial portion of the slide plate. A first motor is mounted on the other end of the slide plate to rotatably support the blade, and a second motor may be carried by the base for rotating the crank to move the slide plate from side to side and up and down along the slot and thereby move the saw blade along an elliptical path. In operation, the second motor turns the crank to cause the blade to be brought into contact with the workpiece along a path generally parallel with a major axis of the elliptical path.

REFERENCES:
patent: 3183950 (1965-05-01), Sherman
patent: 3263716 (1966-08-01), Albers
patent: 4030393 (1977-06-01), Steiner

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