Appleton's dictionary of machines, mechanics, engine-work, and engineering (1861)
Appleton, firm, publishers, New York. (1852, D. Appleton & Co.) · New York : D. Appleton · leaf 387
keel-blocks w w and chock-blocks t, and of the swingingbeams, bj means of the adjusting-screws m, 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… … The vessel to be repaired is then floated into the dock, brought over the keel-blocks, and the hydro-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 in by…
Mechanical engineering
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