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Title: |
1895 Article-Niles Tool Works, Car-Wheel Lathe |
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Source: |
Modern Mechanism 1895 pgs 460-461 |
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Insert Date: |
6/18/2011 9:03:39 PM |
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Fig. 7 illustrates a car-wheel lathe built by the Niles Tool Works, of Hamilton. O.H., especially designed for turning steel-tired car and truck wheels on their axles. The problem presented in this case is to grip the axles by their journals, keep them in line with each other, and revolve them about their common centers, whether these should be true with the original centers of the axle or not. This is accomplished in the following manner: The lathe is arranged with two face-plates revolving on hubs projecting from each head turned true and placed in exact alignment. Within these face-plates and revolving with them are placed two very strong, self-centering chucks, with four swivel jaws. They are operated by gearing mounted on each head-block. These grip the axle firmly about the centers of the journals, and with the face-plates revolve them in exact line. The two faceplates are geared together in the same manner as on driving-wheel lathes, by a heavy forged steel shaft. The chucks above mentioned are used only to center the work and insure the wheels being turned true with the journals. The wheels are revolved by two drivers on each face-plate, which engage with the heads of the bolts used to secure the tire to the wheel-center. These drivers are adjustable both lengthwise and radially to suit any wheel. Each head is arranged with a sliding spindle, with centers, which are capped to prevent end-motion of the axle when used for turning truck-wheels with inside journals. These caps can be removed and the spindles run out beyond the face-plates, when the work may be carried on the centers. The right-hand head is movable on the bed by rack and pinion. As the chucks have swivel-jaws, they will accommodate themselves to the work as it is put into the lathe. The feeds are operated from the driving-shaft by means of a rock-shaft placed in front of the machine, and work through the means of a ratchet-lever in the same manner as on driving-wheel lathes. |
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1895 Niles Tool Works, Car-Wheel Lathe
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