Blade tensioning device for scroll saw

Details Blade tensioning device for scroll saw Blade tensioning device for scroll saw

B - Operations, Transporting

23

D

143/56

B23D 49/04 (2006.01) B23D 49/00 (2006.01) B23D 51/12 (2006.01)

Patent

CA 1269308

Abstract of the Disclosure A scroll saw is disclosed having upper and lower reciprocable arms terminating in upper and lower ends having a saw blade connected therebetween. A releasable blade tensioning device is mounted on the upper end including a blade support member having a central portion pivotally mounted to the upper end with a first end thereof extending along the upper arm and a second end connectable to the saw blade. The blade support member is pivotable between a first blade tensioning position and a second blade tension releasing position, and a manually rotat- able cam is mounted on the first end and a manually operable adjustment screw engageable therewith is mounted on the upper arm. The manually rotatable cam is constructed and arranged to force the first end and the upper arm apart in one rotated posi- tion thereof to move the blade support member to the first posi- tion, and to permit the blade support member to move to the second position in another rotated position thereof. The manually operable adjustable screw permits adjustment of the ten- sion on the saw blade.

510024

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