Machine Shop Tools And Shop Practice a book of Practical Instruction Describin
Machine Shop Tools And Shop Practice a book of Practical Instruction Describin
William Humphrey Van Dervoort
The book Machine Shop Tools And Shop Practice a book of Practical Instruction Describin was written by author William Humphrey Van Dervoort Here you can read free online of Machine Shop Tools And Shop Practice a book of Practical Instruction Describin book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Machine Shop Tools And Shop Practice a book of Practical Instruction Describin a good or bad book?
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258 MODERN MACHINE SHOP TOOLS. When the cuts are long it is advisable to use two cutters, the first with serrated cutting edge to break up the scale before putting the finishing cutter into the work. The pilot bars should be hard- FIG 370. ened and ground to correct size, as there is danger with soft bars of their seizing the surface of the bore. With the turret lathes, Figs. 263 and 269, where an indepen- dent carriage is provided, operations on the face and circumference FIG. 371. of the work... can be carried on at the same time the turret tools are operating on the bore. In Fig. 371 is shown a Gisholt lathe operating upon a stepped pulley. The bore having been finished, the long pilot bar is passed through it and entered into the bush- LATHE WORK ON FACE-PLATE, ETC. 259 ing in the nose of the spindle, thus forming a substantial support for the work. The heavy cast head secured to the carriage is provided with a cutting tool for each step of the cone, thus finish- ing all the steps in the time of the feed across one.
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