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Title: |
1895 Article-Pratt & Whitney Co., Gear Rack Cutting Machine |
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Source: |
Modern Mechanism 1895 pg 394 |
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Insert Date: |
6/14/2011 1:13:30 PM |
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The Pratt & Whitney Rack-Cutting Machine, shown in Fig. 5., cuts the teeth of racks at any pitch, the spindle driving two cutters, which block out and finish teeth at the same time. Several racks may be cut at one time. The receiving-table has a vertical adjustment and a transverse horizontal traverse. The feed is automatic, with self-acting adjustable stop-motion. The cone is driven by a belt, and actuates the cutter-spindle through the medium of gears. |
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1895 Pratt & Whitney Co., Gear Rack Cutting Machine
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