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 381
keel-blocks w w and chock-blocks t, and of the swingingbeams, by means of the adjusting-screws in, to the suspending chains. The cylinders are then dis-charged, the rams fleeted back, the pawls loosed, and the cradle of swinging beams sunk again by itsown weight, the mainstraps being checked from… … c The vessel to be repaired is then floated into the dock, brought over the keel-blocks, and the hydr>static engines and pumps set to work until sufficient pressure is created to raise the swing beams up tothe keeL The motion is then stopped, and the traverse frames q and chock-blocks t hauled…
Mechanical engineering · Mechanics · Engineering
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