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Title: |
1921 Article-South Bend Lathe Works, Quick Change Gear Lathe |
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Source: |
Machinery, V28, Oct 1921, pg. 156 |
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Insert Date: |
6/13/2016 1:53:32 PM |
The quick-change-gear lathe shown in the accompanying illustration has recently been added to the line of lathes manufactured by the South Bend Lathe Works, 420 Madison St., South Bend, Ind. It is made in eight sizes ranging from 9 to 24 inches swing, and may be provided with either a straight or gap bed. The quick-change gear-box is the same as that provided on Flather lathes. and has forty eight changes of feeds and threads. These changes are also available for the cross-feed. Ail gears in the gear-box are made of steel forgings. The index-plate shows the holes in which to insert the plunger for the different changes, and the crank-lever above the box operates an inside clutch.
The bed has three vees and one flat way for guiding the headstock, tailstock, and carriage. The headstock is equipped with an improved reverse and a hollow spindle made of special steel and accurately ground. The tailstock is offset to allow the compound rest to be swiveled parallel to the bed and is provided with a set-over to enable the turning of tapered parts. The tailstock center is self-ejecting. The carriage is provided with T-slots for clamping work to be milled or bored. Both the automatic cross-feed and the automatic longitudinal feed of the carriage are operated from the front of the apron, and but one feed can be engaged at a time. Both feeds are driven by a splined screw and worm so that it is only necessary to use the lead-screw thread when thread cutting.
The compound rest is graduated to 180 degrees, and the cross-feed screw has a micrometer graduated collar reading to 0.001 inch. The regular equipment includes large and small faceplates, graduated compound rest, follow-rest (not included on 9- and 11-inch lathes), adjustable stop for thread cutting, semi-machined chuck-back, gear guards, wrenches, and double-friction countershaft. |
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1921 South Bend Lathe Works, Quick Change Gear Lathe
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