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The Common Press with the Application of the Stanhope Power.

To face page 648.

hooks, fastened at each corner of the platten, cords are looped to suspend the latter, they being exactly adjusted, to hang it truly level.

Beneath the

with a double

The carriage, fig. 14, is a wooden frame lying horizontally, having its fore-part supported by a wooden prop called the forestay, fig. 15, while the other end rests on the winter; on the rails of this frame two long steel bars or ribs are fixed. carriage is placed an axis called the spit, fig. 16, wheel of beach wood fixed on the middle of it, round which leather girths are passed and fastened, the opposite ends being nailed to each end of the plank, fig. 17; under the plank are nailed short pieces of iron or steel, called cramp irons, which slide upon the ribs, when the carriage is run in or out, by the following means on the extreme end of the axis is fixed the handle or rounce, by which the pressman turns the axis, and this, by means of the wheel and girths, runs the forme, &c. in or out. Upon the plank, fig. 17, a square frame of wood is fixed, to form the coffin or cell, in which a marble or polished stone is inclosed, accurately bedded in bran, plaster, &c., for the forme to be laid upon. To this plank are fastened leather stay-girths, one to each end, being at the opposite ends fastened to the end rails of the carriage, to prevent the press running too far out or in. On the fore-part of the plank is a slight frame, called the gallows, fig. 19, which serves to sustain the tympan, when turned up from off the forme, on its hinges. The tympans, figs. 20,21, are square frames covered with parchment. The frames are made of three sides of wood, a slip of iron at the top, called a head-band. The two tympans are fitted

* I am not at all satisfied as to the propriety of the appellation which has been given to the two parts of the press represented by figs. 14 and 17. It seems that the term "carriage," would more properly apply to the part, fig. 17 (to which the motive power being given, it carries in and out the forme, paper, &c.), as comprehending under one term, the coffin, plank, cramps, &c., while that now designated the "carriage and ribs," fig. 14, might with more propriety be called, "the wooden and steel ribs." Dr. Rees, in his Encyclopædia, has adopted these distinctions; but as I find such authority as Moxon, and general custom, on the other side, I must conform to what my predecessor, Stower, has adhered to in this part of the description.

"Run in," or "run out" " the press," is the technical expression for working the plank, coffin, stone, forme, and tympans, to and fro.

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