Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 375
ceived on reference toFig. 1055, are also improvements. An auger hole, a little smaller than the screw of the bit, being firstbored, the thread will cause the bit to advance as fast as the chisel and gouge can conveniently cut,and thus the whole labor is confined to turning it. The instrument now… … By means of irons and the dowell, the cross-ties are secured to the sills in such a manner as to makeit impossible that the carriage should spread; and by thus tying the sides to the centre, the cross-tim-bers convert the oblique force of the shores into vertical pressure; and care is taken in…
Mechanical engineering · Mechanics · Engineering
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