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Title: |
1895 Article-Pedrick & Ayer, Steam Chest Seat Milling Machine |
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Source: |
Modern Mechanism 1895 pg 513 |
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Insert Date: |
6/24/2011 12:36:14 PM |
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Portable Steam-Chest Seal Milling-Machine.—Fig. 12 shows a machine built by Pedrick & Ayer, of Philadelphia, adapted to supersede the slow and expensive operation of cutting a groove in the surfaces adjoining the steam-chest seat with hammer, chisel, and file. This machine is also adapted to the drilling either of new holes for studs or the drilling out of old studs when broken off. It is supported and adjusted to the surface to be grooved or milled by four studs, running through two hollow arms, which in turn support the Vs or slide. This slide carries a head containing a spindle, similar to a drill-press, and this head receives a transverse movement by means of the screw, as shown, the milling spindle being driven by beveled gears and a transverse shaft. The cutting or grooving is performed by a face-milling cutter inverted in the end of the spindle, and is fed up and down by means of a screw and small wheel, and when the proper depth for a cut is readied the horizontal movement of the spindle is prevented by means of a check-nut on the small screw. The sliding or tool head is fed in either direction by means of change feed-gears at the end of the screw. |
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1895 Pedrick & Ayer, Steam Chest Seat Milling Machine
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