US Patent: 3,192,806
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| Thread Cutting Attachment for an Engine Lathe and the Like
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Patentees:
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| William A. Bisbee (exact or similar names) - Los Angeles, Los Angeles County, CA |
| George C. Kaiser (exact or similar names) - Rosemead, Los Angeles County, CA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jul. 01, 1963 |
| Granted: |
Jul. 06, 1965 |
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Joel Havens
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Description: |
| Claim:
Modern engine lathes are designed so that they may be used to cut threads into a workpiece mounted in a chuck connected to the power driven headstock of the lathe. In order that the lathe may be used to cut threads, it is equipped with a lead screw and a carriage which is slidable along the bed of the lathe. The lead screw conventionally is connected to the headstock through a gear box which is so designed that a large number of gear ratios are available to define the nature of the connection between the headstock and the lead screw. The carriage may be engaged with the lead screw so that the carriage is moved parallel to the axis of rotation of the headstock along the lathe bed at a rate determined by the gear ratio between the headstock and the lead screw and by the pitch of the lead screw. The amount the carriage advances with each rotation of the headstock determines the pitch of the thread to be cut into a workpiece by a cutting tool mounted on the carriage. |
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