Merchant, F. W. (Francis Walter), 1855-1937, Fessenden, Cortez, b. 1852 · Toronto : Copp, Clark · leaf 336
nts; the plates, D, should be left smooth.The points of the six screws, X, Y, and the centre ofgravity of the beam should be nearly in the same plane;the delicacy of the balance is increased by screwingdown the two screws, X; if they are too low, however,the beam will overbalance on either side and… … structing models of pumps. Lamp chimneys are used 328 PHYSICAL SCIENCE. for the barrels. The pistons are made by turning ablock of wood to the form shown, and the packing issupplied by wrapping the pistons with a soft cord. Thefeed-pipes are pieces of glass tubing inserted into woodenblocks made to…
Physics
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