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Title: |
1911 Article-W. F. & John Barnes Co., #3 Horizontal Radial Drill |
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Source: |
Machine Tools Commonly Employed In Modern Engineering Workshop, V2, 1911, pg. 36 |
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Insert Date: |
5/10/2020 9:36:40 PM |
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No 3 Horizontal Radial Drill vertically instead of horizontally, being pivoted on the end of the table upon which the work is mounted, either directly or upon a turntable. The driving-cone spindle axis coincides with that of the pivot, so that the tightness of the driving belt is not affected when the radial arm is rotated. Tools of this description are of particular value for drilling and tapping holes in the sides of work which can only be set up readily on the table upon its base; and it will be seen that, by swinging the arm and raising or lowering the spindle saddle, all parts on the sides of the work can be brought within the range of the drill. The machine, which is intended for work of a comparatively light class, is belt - driven from the countershaft shown upon the table. The spindle has a diameter of 1 15/16 in. and is fed by power, or worm-gear handwheel, or by the long hand lever shown in the illustration. Radial arms can be mounted on both ends of the beds of machines of this type for operating simultaneously on two sides of the work. |
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1911 W. F. & John Barnes Co., #3 Horizontal Radial Drill
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