This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1907 Excerpt: ...column. As it is especially desirable on such large machines that the work should be finished with as little resetting as possible, feeds suitable for milling and facing are given to both column and saddle. After once setting the work on the table it is then possible to bore all parallel holes and to face all flat ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1907 Excerpt: ...column. As it is especially desirable on such large machines that the work should be finished with as little resetting as possible, feeds suitable for milling and facing are given to both column and saddle. After once setting the work on the table it is then possible to bore all parallel holes and to face all flat surfaces within reach. The saddle is counter weigh ted and moves on broad, flat ways. The face-plate on the spindle has teeth cut on its edge and is directly driven by a cut pinion. Quick traverses as well as power feeds are provided for all the adjustments, and the controlling levers and handles are all within easy reach of the operator's platform. From this one position he can control the speed of boring, can raise or lower the saddle, or can move the column either way. Some machines are provided with tapping attachments by which holes may be drilled and tapped without resetting the machine. In finishing beds and frames of unusual weight and size, it is practicable to move a machine of this character to the work and perform all necessary operations without disturbing the piece operated on. If an outboard bearing is needed for the boring bar, a column is bolted to the floor plate for this purpose. 89. Tilting Table. Fig. 64 illustrates a so-called universal machine for drilling and boring holes at any angle. The bed and column of this machine are similar to those just described, but in place of the usual floor plate is substituted an adjustable table. This table has a horizontal motion to and from the column, a rotating motion on a vertical axis, and a tipping motion from 0 to 90 degrees. To quote the language of the makers, 'it is possible on this machine to drill and face holes on five sides of a cube without re-chucking.' The adjustments of th...
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Add this copy of Frames of Southern Mind: Reflections on the Stoic, Bi to cart. $16.86, good condition, Sold by ThriftBooks-Baltimore rated 5.0 out of 5 stars, ships from Halethorpe, MD, UNITED STATES, published by University Press of Southern Denmark.
