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 789
o feet thick, fifteen feet high, and a little over fifty feet long. These piers rest on a granite pavingBBB, laid on the rock C C of hard mica slate. The openings are covered with granite lintels D D D,about two feet thick, resting on the piers; wells E E being left for the gates F. Above the… … The gates F are made of white-oak timber, one foot thick, laid one above the other, and connectedtogether with four bolts, two inches in diameter, passing through the feet of the castings H, to whichthe screws I are attached, and passing down through the middle of the gate to a cast-iron plate…
Mechanical engineering · Mechanics · Engineering
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
