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Title: |
1893 Article-McNaull Machine & Foundry Co., Boring Mill |
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Source: |
Iron Trade Review, V26, 15 Jun., 1893, pg. 11 |
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Insert Date: |
9/19/2020 9:26:36 PM |
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M. D. McNaull; successor to the McNaull Machine & Foundry Co., of Ronceverte, W. Va., has brought out a special boring machine, designed for boring pulleys, gears, cylinders, car wheels for mine and mill work. A No. 2 mill is manufact. ured for boring standard car wheels. The face plate is revolved by a powerful gear driven by a cone with four steps, for a 3-inch belt, on a No. 1 mill, and a cone with five steps on the No. 2 mill. The boring bar has a 20-inch traverse, with automatic feed, with three changes on cones and has quick return, by which the boring bar can be raised from the work with a considerable saving of time. The spindle which carries the boring bar is balanced by a weight which hangs in main upright column. The face plate has two long bearings adjustable to line, as with the spindle. There is furnished with the machine a set of chuck jaws and clamps for holding pulleys, etc. |
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1893 McNaull Machine & Foundry Co., Boring Mill
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