US Patent: 4,369,958
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| Rotating table positioning device with minimum backlash
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Patentee:
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| Robert A. Maynard (exact or similar names) - Holland, NY |
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Patent Dates:
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| Applied: |
Nov. 17, 1980 |
| Granted: |
Jan. 25, 1983 |
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Jeff Joslin
Vintage Machinery entry for Aronson Machine Co.
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Description: |
| This rotary table is intended primarily for use in arc welding. USPTO records show that this patent was originally assigned to Airco, Inc., and on 1985-09-27 that assignment was transferred to K. N. Aronson, Inc."A motor-driven rotating table positioning device has a bullgear engaged by two pinions each driven by the high-efficiency worm and gear set. These two worm and gear sets are connected by a coupling shaft and an adjustable coupling which allows a desired torsion to be maintained in the coupling shaft thereby eliminating any table backlash caused by the bullgear, pinions and high-efficiency worm and gear sets. For safety in the event of motor failure, the motor is coupled to the coupling shaft by a low-efficiency or self-locking worm and gear set." |
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