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US Patent: 1,490,783
Feed Gearing
Patentee:
Howard A. Pedrick (exact or similar names) - Bala, Montgomery County, PA

USPTO Classifications:
74/333, 74/342

Tool Categories:
metalworking machines : metalworking machine mechanisms : metalworking machine gearing
metalworking machines : metalworking machine mechanisms : metalworking power transmission

Assignees:
Howard A. Pedrick - Bala, Montgomery County, PA
Albert A. Pedrick - Oldmans, Salem County, NJ
Pedrick Tool & Machine Co. - Philadelphia, PA

Manufacturer:
Pedrick Tool & Machine Co. - Philadelphia, PA

Witnesses:
none listed

Patent Dates:
Applied: Oct. 27, 1920
Granted: Apr. 15, 1924

Patent Pictures: [ 1 | 2 ]
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"Vintage Machinery" entry for Pedrick Tool & Machine Co.
Description:
Abstract:

This invention relates to mechanism for controlling the rate of feed of a cutting tool or equivalent device and more especially a tool carried by a supporting structure such as a rotary boring bar. One object of said invention is to provide a novel form of feed gearing particularly designed to permit of a quick and convenient adjustment whereby a cutting tool may be caused to feed at a relatively slow rate such as is required when using a drill to bore a hole in solid material or to feed at a faster rate as when it is operating on the inside surface of a previously formed hollow structure. Another object of the invention is to provide a device of the above character which shall be substantial in construction, not likely to get out of order and of such a nature that it may be readily applied to apparatus already in use without requiring serious alteration thereof.

Claim:

The combination of a rotary boring bar; a gear driven thereby, a feed screw; a spindle connected to said feed screw ; a second gear-'on the spindle having a number of teeth different from that of the first gear; a third gear meshing with the two first gears and mounted to move bodily : with means for holding the third gear from bodily movement to cause rotation of the first gear by the boring bar to turn the second gear and the feed screw.

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