US Patent: 872,641
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| Shaft-oscillator
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Patentee:
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| Will F. Bouché (exact or similar names) - Norwood, OH |
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Patent Dates:
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| Applied: |
Aug. 31, 1906 |
| Granted: |
Dec. 03, 1907 |
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Jeff Joslin
Vintage Machinery entry for Allis-Chalmers Mfg. Co.
Vintage Machinery entry for Bullock Electric Mfg. Co.
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Description: |
| "An oscillating movement given to a rotating element of a dynamo-electric machine, especially a rotary converter, causes the shaft of said element to operate in its bearings and prevents the wearing of the ridges and grooves in the commutator of the machine." |
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