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Title: |
1900 Article-Prentice Bros., Engine Lathe |
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Source: |
English & American Lathes, 1900 pg 92 |
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Insert Date: |
12/15/2012 10:56:36 PM |
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There is one exception to the otherwise universal practice of setting to turn taper by the attachment at the back of the lathe, or by setting over the loose poppet. It is embodied in one of the 6-in., and in the 7½-in. centre lathes of Prentice Brothers, of Worcester, Mass., shown in Fig. 181, In this the head and tail-stocks are mounted on a swiveling-plate, pivoted at the centre of the lathe-bed, and bolted to it after adjustment. The slide-rest carriage, therefore, runs on vees on the main or bottom bed, and the heads are fitted on vees on the swiveling-plate. Presumably the tool operates more rigidly than is the case when the top-slide is connected loosely to the usual taper strip, between which there is generally to be guarded against. Tapers can also be turned along the whole length between centres. |
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