. The Civil engineer and architect's journal, scientific and railway gazette. Architecture; Civil engineering; Science. Fig. 1, is a side elevation of the machine, partly in section, to show the interior construction ; and fig. 2, is a plan, also partly in section. In this arrangement two horizontal fixed cylinders are employed, fur- nished with dies at their outer ends, and doors on the upper part for the admission of clay, which is forced out through the dies by the ac- tion of pistons working within the cylinders, in the manner commonly practised. The peculiarity consists in the mode of wor
. The Civil engineer and architect's journal, scientific and railway gazette. Architecture; Civil engineering; Science. Fig. 1, is a side elevation of the machine, partly in section, to show the interior construction ; and fig. 2, is a plan, also partly in section. In this arrangement two horizontal fixed cylinders are employed, fur- nished with dies at their outer ends, and doors on the upper part for the admission of clay, which is forced out through the dies by the ac- tion of pistons working within the cylinders, in the manner commonly practised. The peculiarity consists in the mode of working the pistons, a, a, are the horizontal cylinders, secured to a bed-pl,ite; fc, 6, are suitably-formed dies, bolted to the outer ends of the cylinders ; c, c, are doors hinged to the cylinders with a bdt rf, for se'curing them; e, e, pistons, attached together by a plate/,/. Upon one face of this plate are pins g, g, into which a pinion h, takes alternately on the upper and under side thereof, i, j, are semi-circular guides attached to the plate/,/, and intended to keep the pinion, when it has arrived at either end of the series of pins, still in gear therewith, in order that the traverse of the pistons may be continuous. The pinion h, \s motinted in a slotted bearing *, and its axle may be provided with a winch-handle, for communicating a rotating motion to the pinion. The cylinders a, are filled alternately with clay by the door c. When the cylinder is filled, the door is closed, and the rotation of the pinion h, will then bring forward the piston, and cause the clay to find an exit through the die b. While this is being efFected, the other cylinder is ready to be charged with clay, which in its turn will be forced out by the return motion of the pistons. It will now be un- derstood that the continuous rotation of the pinion A, in one and the same direction, will force the pistons alternately forward in their re- spective cylinders, and cause them to press the clay contain
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