B - Operations – Transporting – 27 – B
Patent
B - Operations, Transporting
27
B
143/44
B27B 21/00 (2006.01) B23D 49/16 (2006.01)
Patent
CA 1211685
ADJUSTABLE ORBITAL RECIPROCATING SAW Abstract of the Disclosure The jigsaw has a drive gear carrying an eccentrically mounted drive pin forming part of a Scotch-yoke mechanism for reciprocating the plunger and bladeholder along a generally longitudinal axis. The plunger is held by a pair of spaced swivel bearings; the lower bearing mounted to the housing while the upper bearing is mounted for oscillatory movement in a bearing carriage. Drive means synchronized to the reciprocal motion of the plunger urge oscillatory movement of the bearing carriage and upper bearing thereby causing orbital motion of the blade. A knob on the top of the housing adjustably limits or inhibits the oscillatory movement of the bearing carriage thereby permitting ready and convenient adjustment of the orbital blade motion.
446331
Hartmann James R.
Vassos Louis J.
Sim & Mcburney
Skil Corporation
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