Cutting – By tool reciprocable along elongated edge – Arcuately oscillating tool carried on single pivot
Patent
1990-01-22
1991-10-22
Yost, Frank T.
Cutting
By tool reciprocable along elongated edge
Arcuately oscillating tool carried on single pivot
835811, 83662, 83748, 83786, B23D 4900
Patent
active
050584766
ABSTRACT:
A scroll saw has a base including integral walls forming a gear casing, a frame assembly mounted on the base, and lower and upper oscillating arm members pivotally mounted on the frame assembly. The gear casing houses gear and counterweight assemblies for driving and counterbalancing the oscillating motion of the lower and upper arm members. A saw blade is removably mounted between corresponding free ends of the lower and upper arm members. The ends of the saw blade are prepositioned between a pair of blade holders, and the entire assembly of blade and blade holders is then attached as a unit to the free ends of the arm members. Blade tension is adjusted by means of a tensioning system that indexes blade tension to rotation of a tension knob. The saw further includes a nonflexible tube which functions as a combination airblaster and blade guard for directing an air stream into a cutting area to remove sawdust and other debris while preventing accidental contact with the saw blade.
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Scroll Saw Users Manual, Oct. 1987.
Bartlett Robert L.
Flora David D.
Legler John G.
Shopsmith, Inc.
Smith Scott A.
Yost Frank T.
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