US Patent: 1,463,806
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| High Speed Gear Generating Machine
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Patentee:
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| Edwin R. Fellows (exact or similar names) - Springfield, Windsor County, VT |
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Patent Dates:
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| Applied: |
Sep. 30, 1921 |
| Granted: |
Aug. 07, 1923 |
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Joel Havens
"Vintage Machinery" entry for Fellows Gear Shaper Co.
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Description: |
| Wright, Brown, Quinby & May - patent attorneys
This invention relates to machines adapted to cut gears at high speed, with utilization of the principle disclosed in prior patents secured by me of cutting grooves in the face of a gear blank by a gear-shaped planing cutter, and generating in the sides of such grooves the correct curves of gear teeth by giving simultaneous rotary movements to the cutter and gear blank of the same character as the movements of a pair of intermeshing conjugate gears. More particularly, the invention is an improvement on the type of high-speed gear shaper disclosed in my pending application, Serial Number 351,126, filed January 13, 1920. The invention has the same objects as those set forth in the aforesaid application, and the further object of adapting the high speed type of gear-generating machine to a wider range of work, by enabling a single machine of a given size to turn out so finished work of a wider range of sizes than is possible with the machine illustrated in the aforesaid application. These further objects are accomplished by a novel mode of adjusting and feeding the cutter for depth of cut, and a new and improved mode of backing off the work during the return strokes of the cutter, and of holding the work in position to be cut during the cutting strokes of the cutter.
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