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Title: |
1900 Article-Pratt & Whitney Co., Turret Engine Lathe |
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Source: |
English & American Lathes, 1900 pg 122 |
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Insert Date: |
12/19/2012 7:50:59 PM |
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A favorite form in America is that of a common engine-lathe, Fig. 219, with the usual tool-carriage, with change-wheels and lead-screw, but with friction-geared head, and with turret on its carriage. Screws of any pitch can be cut by the lead-screw and wheels, while the turret affords the means of turning, etc., and of cutting screws by dies. Fig. 219 is one of the Pratt & Whitney lathes, made in centres ranging from 5 in. to 13½ in. |
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1900 Pratt & Whitney Co., Turret Engine Lathe
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