Bearing assembly for C-arm scroll saw

Cutting – By tool reciprocable along elongated edge – Arcuately oscillating tool carried on single pivot

Patent

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Details

83698, 83700, B23D 4900

Patent

active

046191712

ABSTRACT:
A scroll saw is disclosed having a base with a table mounted at one end and a horizontal pivot shaft mounted at an opposite end of the base. A yoke member having upper and lower arms and a curved bight connecting the arms is mounted on the pivot shaft at the curved bight. The arms of the yoke member terminate in upper and lower ends having a saw blade connected therebetween and extending through the table, and means are provided for reciprocating the yoke member and pivot shaft to effect movement of the saw blade. The opposite ends of the pivot shaft are mounted in tapered roller bearings disposed in bearing support openings in the base. Cap members are provided at each end of the bearing assembly to hold the roller bearings and shaft in place and a wave spring is mounted between one cap and one roller bearing to apply a compressive force to the roller bearings in the direction toward the yoke to hold the bearings, pivot shaft and yoke in place. The yoke member is adjustably locked to the pivot shaft by a pair of set screws which can be released to permit axial adjustment thereof.

REFERENCES:
patent: Re7726 (1877-06-01), Plummer
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patent: 2090195 (1937-08-01), Grob
patent: 2208843 (1940-07-01), Hedgpeth
patent: 2692622 (1954-10-01), Heese
patent: 2721587 (1955-10-01), Dremel
patent: 4503742 (1985-03-01), Sutton
The Eagle Precision Scroll Saw, exclusive "C" Arm for Safety, manufactured by RBI Industries, Inc., Pleasant Hill, Mo.

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