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Title: |
1895 Article-Betts Machine Co., Rotary Planers |
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Source: |
Modern Mechanism 1895 pg 627 |
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Insert Date: |
12/3/2011 10:56:50 PM |
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Rotary Planers — Figs. 7 and 8 show two forms of rotary planing machine, made by the Betts Machine Co., of Wilmington, Del. These machines are specially designed for facing plane surfaces on columns, chords, etc., in iron bridge building, architectural iron work, and many other jobs where large numbers of pieces of the same kind are used; on this class of work they have advantages over reciprocating planers; in many cases the finished work can be removed and replaced by new work while the machine is still facing at the opposite end. The cutters are secured in a heavy plate wheel, banded with wrought iron, and driven by worm and worm-wheel; this plate wheel has a heavy steel spindle and is carried in a travelling head on the bed plate, the work remaining stationary. They have automatic variable feeds, and the heads are moved back by an independent countershaft. In the machine shown in Fig. 7 the cutters are made adjustable. The spindles have an end adjustment, so that there is no necessity for moving the work to make the cut. These machines may have a cutter plate with fixed cutters put upon them, in place of the adjustable cutters, if so desired, and can be mounted on a turn table, and be swiveled through an angle of 90° by means of a pinion and segmental rack, the driving being so arranged as to permit this movement. This feature enables the pieces to be faced off at any angle, and saves the inconvenience of setting the work at an angle on the shop floor, thus economizing room. |
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1895 Betts Machine Co., Rotary Planer
1895 Betts Machine Co., Rotary Planer with Movable Tables
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