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Title: |
1896 Article-Gleason Works, Pit Lathe |
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Source: |
Machinery Magazine May 1896 pg 261 |
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Insert Date: |
3/22/2011 9:45:17 PM |
A NEW PIT LATHE.
This pit lathe is adapted to a great variety of work which can be done in a rapid and accurate manner. The face plate is 68 inches in diameter. The tools can be set in far enough towards the center to turn 36 inches in diameter and the cross rails moved far enough back to take in a diameter of 18 feet. By a use of a heavy bar in the compound rest, as is common on boring mills, even smaller than 36 inches could be turned. The four turning tools have power angular feed. The boring bar can be used simultaneously with the turning tools, and the five tools working together can bore a pulley, turn the face, edges, and the rest in quicker time than can any other form of machine designed for such work. There is an outward support for boring bar, so the bar cannot sag of its own weight, but is not shown in this cut. The angular adjustment of the turning tools is valuable when turning the grooves in rope drive wheels, as whatever angle is desired to give these grooves can readily be obtained. The advantage of a pit lathe for large pulleys is that they are said to be turned truer than when turned on their centers. Besides working on rope drive wheels, fly-wheels, pulleys and gears, the lathe has been used with good results boring large cylinders. The internal gear of the face-plate is of steel, machine cut. The ratio of gearing is 160 to 1. There is a uniform ratio of speeds from .35 revolutions per minute to 47.66 revolutions per minute. It is designed by the Gleason Tool Co., 25 Race street, Rochester, N. Y. |
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1896 Gleason Works, Pit Lathe
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