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Title: |
1896 Article-Pratt & Whitney Co., Double Head Milling Machine |
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Source: |
Cassier's Magazine Sep 1896 pgs 349-350 |
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Insert Date: |
7/22/2011 9:14:38 PM |
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In Figs. 13 and 15 are shown two duplex milling machines built by the Pratt & Whitney Company, of Hartford, Conn. The tables of these machines are driven by a short screw of large diameter, engaging in a rack, which is a segment of a nut. |
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1896 Pratt & Whitney Co., Double Head Milling Machine
1896 Pratt & Whitney Co., Double Head Milling Machine
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