US Patent: 1,415,515
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| Change Gear Mechanism
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Patentee:
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| Constant Bouillon (exact or similar names) - Torrington, CT |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Aug. 11, 1920 |
| Granted: |
May 09, 1922 |
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Joel Havens endey Machine Co. History "Vintage Machinery" entry for Hendey Machine Co.
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Description: |
| Southgate & Southgate - patent attorneys
Abstract:
This invention relates to change gear mechanism designed for use in lathes, drills and other machine tools, in which a wide range of working speeds is desired.
It is the object of my invention to provide a mechanism of this character by which a large number of speed changes may be maintained by means of a relatively small number of change gears, and by the use of simple and reliable controlling devices.
In the preferred form, I mount the gears upon three parallel shafts and control their positions by means of two hand shift levers.
By using three gears on each shaft, I obtain nine different speed ratios between the driving and the driven shafts. |
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