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Title: |
1911 Article-Newton Machine Tool Works, Portable Drilling & Milling Machine |
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Source: |
Machine Tools Commonly Employed In Modern Engineering Workshop, V2, 1911, pgs. 33-34 |
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Insert Date: |
5/4/2020 9:28:26 PM |
One example of the many types of portable drilling machines, made by the Newton Machine Tool Company, of America, is illustrated in fig. 259. This machine can be laid down on the floorplate beside the work, and is intended for light milling in addition to the ordinary drilling operations. For example, it may be employed for milling the dovetail section slots in the spicier of an electric generator. A short spindle may be substituted for the longer one to enable the machine to be set up inside the motor frame when it is required to mill out the frame slots for the coils. In the machine illustrated, the upright is mounted upon a base-plate, along which it can be adjusted; but the column cannot be swiveled about its vertical axis, as is the case in other machines of a similar type made by the same makers. The spindle head, which is counterbalanced by external weights on each side of the standard, can be raised or lowered through a considerable range along the standard guides, and all the usual spindle feed and speed adjustments are provided. On the top of the standard is mounted the driving motor, which, in the No. 1, 4½-in.-diameter spindle machine is of 5 h.p., and of 10 h.p. in the larger No. 2, 5½-in. spindle machine.
Several portable tools, including the one above described, are shown in fig. 260, grouped around a portion of a large electrical generator on the floorplate of the Schenectady shops of the General Electric Company. The tools are laid down where required on the floor by means of the overhead crane, and the baseplate is clamped down, as shown in the illustration, when the machine is correctly positioned to suit the work. |
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1911 Newton Machine Tool Works, Portable Drilling & Milling Machine
1911 Newton Machine Tool Works, Portable Drilling & Milling Machine in General Electric Factory
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