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 578
ston are forcedup, and the damper hegiiis to close, till it attains theposition, fig. 321G, when the draft is entirely shut. Theamount of pressure is controlled by the sliding weight orpea on the steelyard arm H, as shown in fig. 3210. Thediaphragm is composed of a cup or cylinder, and tliepatentee… … he observes, that aflat disc will an-swer, provided thecylinder is made asshown in the figures. These machinesare in successful op-eration throughoutthe country; theymaintain an even head of steam with economy inthe consumption of fuel, safety to the boilers, andgeneral saving in wear and tear.…
Mechanical engineering · Mechanics · Engineering
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