US Patent: 4,534,684
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| Apparatus For Milling A Gear For A Double Enveloping Worm Gear Drive
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Patentee:
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| Bernard H. Johnson (exact or similar names) - Plymouth, Wayne Count, MI |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Sep. 30, 1982 |
| Granted: |
Aug. 13, 1985 |
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Joel Havens
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Description: |
| Abstract:
Apparatus for milling a gear for a double enveloping worm gear drive. A rotating milling cutter is advanced toward a workpiece spindle to mill a flank of a gear tooth by tilting the milling cutter supporting frame about an axis that passes through the axis of rotation of the workpiece spindle to form a predetermined change in the helix angle from the top to the root of the tooth. The initial tilt setting of the cutter is adjusted to suit the root helix angle. |
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