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Title: |
1903 Ad& Article-Joseph C. Nicholson Tool Co., Collingwood Hollow Spindle Treadle Lathe |
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Source: |
Page's Engineering Weekly, Jun 1903, pg 15 & English & American Lathes, 1900 pg 102 |
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Insert Date: |
12/16/2012 7:21:17 PM |
Fig. 193 is one of entirely English type, by the Nicholson Tool Co., Newcastle-on-Tyne. It is of 5-in.
centre, and weighs 8½ cwt., has hollow steel mandrel, with ball-bearings to take end-thrust. The treadle-motion runs in anti-friction roller-bearings and is provided with a heavy fly-wheel in addition to the driving-wheel. The base of the slide-rest is graduated for turning taper. The tail-stock also has a side adjustment.
This represents the usual type of English treadle-lathe. It is one, which divides favour here with the straight axle and outside drive. A principal variation in detail is the substitution of rods for chains, or the use of a single crank in place of double ones. One crank is by some considered better than two, on the ground that there is no difficulty in adjusting the lengths of the pitman or of the chains exactly alike. But two are employed in lathes exceeding about 4 feet in length. Most axles are fitted with a fly-wheel, as shown, so that they run easily, smoothly, and regularly. Most lathes, too, have one of the wheels weighted opposite to the crank, so that the cranks come above the centres when the lathe is at rest, ready to start the treadle without pulling at the belt first for adjustment. |
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1903 Joseph C. Nicholson Tool Co., Collingwood Hollow Spindle Treadle Lathe
1900 Joseph C. Nicholson Tool Co., Collingwood Hollow Spindle Treadle Lathe
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