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US Patent: 111,859
Turning Lathe
Frederick B. Miles - Philadelphia, PA

USPTO Classifications:
74/348, 82/140

Tool Categories:
metalworking machines : metal lathes : engine lathes

Ferris & Miles - Philadelphia, PA

Ferris & Miles - Philadelphia, PA

George G. Shelmerdine
R. P. McCall
Oscar C. Ferris
Walter H. Henszey

Patent Dates:
Granted: Feb. 14, 1871

Patent Pictures: [ 1 | 2 ]
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VintageMachinery.org entry for Ferris & Miles
This invention relates to engine-lathes for turning metals. It consists in a new and improved arrangement of the feeding and screw-cutting gearing, whereby the various changes for cutting screw-threads and effecting different degrees of feed can be made without adding or removing any gear-wheels or any other parts or pieces. By its means the operator can, at pleasure and without loss of time, convert the lathe from turning to screw-cutting and also can instantly change from a thread of one pitch to one of another pitch, and is also saved from any mistakes in compounding gear.

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