Model making; including workshop practice, design and construction of models, a practical treatise for the amateur and professional mechanic .. (1919)
Yates, Raymond F. (Raymond Francis), 1895- ed · New York, The Norman W. Henley Pub. Co. · leaf 52
er of threads to the inch. It is possible to regulatethe rotation of the lead screw relatively to the spindleof the lathe and get just about any pitch on the workthat we desire. If we want 12 threads to the inch, thenwe must make the lead screw turn half as fast as thework or spindle. If we want 3… … rig. 28—^Testing threads with a small pocket gauge how the gears control the pitch of the screw thread wecut, and what gears to use in order to.get a certain pitchthat may be desired. Let A, Fig. 26, be a gear wheel onthe spindle; C one on the lead screw; and B, an inter-mediate gear. First,…
Machinery
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