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US Patent: 1,264,528
Saw Filing Machine
John L. Keil - Plainview, NE

USPTO Classifications:
76/33, 76/41

Tool Categories:
woodworking tools : handsaws : saw sharpening tools
metalworking machines : filing machines


Not known to have been produced

none listed

Patent Dates:
Applied: Jun. 27, 1917
Granted: Apr. 30, 1918

Patent Pictures:
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Jon Vaughn-patent attorney

My invention relates, generally, to, improvements in that class of saw filing machines by which the toothed edge of a saw blade is longitudinally carried, in step-by step movements according with the spacing or number of teeth to an inch of length of the saw, to receive the action of a rotary file: reciprocated against and 'away from such toothed, edge; and particularly relates to the saw - carriage, its step - by - step movement actuating mechanism and accordingly intermittent saw-blade clamp; and the objects of my improvement are, first, to facilitate, attaching, the saw in the required position on the step-movement-carriage, when; said carriage is released from the step-actuating mechanism, and removed from the machine; second, to provide .new and more efficient means for attaching the saw to the carriage; third, to render the saw-blade clamp automatically centering as to the thickness of the saw-blade and the position of the revolving file; fourth, to provide guide-ways and an intermittent fastening lock for the saw-, carriage by which the carriage will be rigidly held at a predetermined, position vertically and laterally during the action of the file, but yieldably and releasably held to facilitate the longitudinal step-by-step movements and the complete separation of the carriage from the machine; fifth, to provide an arrangement of carriages each having two toothed-racks suitably nominated, and arranged thereon, whereby, a single carriage will correctly carry either of four, saws of differently spaced or sized teeth and allow the requisite changes to be made from one saw to another without tendency to mistakes; and, sixth, to simplify, and render more efficient the step-by-step mechanism for the carriage and the accordant intermittent saw clamp action connected therewith.

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