. The Practical brick and tile book. e moulds, and presents themsuccessively to a conical hopper to be fed with clay; is a cross section of the mould-cylinder, showing itsconnection with the hopper ; and fig. 14 shows themeans used for locking the cylinder, so as to keep themoulds stationary while being filled and discharged. A A is the main framing of the machine, upon whichis mounted in suitable bearings a horizontal cylinder cylinder is cast with open ends, and it is fittednear the middle of its length with a series of fourmoulds, C C, arranged radially around it. These moulds
. The Practical brick and tile book. e moulds, and presents themsuccessively to a conical hopper to be fed with clay; is a cross section of the mould-cylinder, showing itsconnection with the hopper ; and fig. 14 shows themeans used for locking the cylinder, so as to keep themoulds stationary while being filled and discharged. A A is the main framing of the machine, upon whichis mounted in suitable bearings a horizontal cylinder cylinder is cast with open ends, and it is fittednear the middle of its length with a series of fourmoulds, C C, arranged radially around it. These mouldsare formed by recesses cut through the periphery of aprojecting band a a, that surrounds the cylinder, havingtheir ends closed by the rings b h (bolted to the cylin-der) : a series of close chambers, D D, are formed in asimilar manner between the moulds for receiving steamfor heating the latter. Immediately above this con-centric projection of the cylinder B, and in close prox-imity thereto, is situate the hopper E, in which a screw. ART OF MAKING BRICKS AND TILES. 225 is mounted for forcing down the clay into the mouldsas they arc presented to the former. Fitted into themoulds are plungers, F, the stems of which projectthrough the inner periphery of the cylinder B, and areintended for discharging the bricks from the moulds ;the inner periphery of the cylinder B is also pierced toreceive the ends of a cruciform arrangement of steampipes, G (fig. 18), for supplying steam from a centralpipe running in the direction of the axis of the cylin-der to the chambers D ; an intermittent axial motion isgiven to the cylinder, for the purpose of bringing themoulds severally imder the hopper to be filled, andsubsequently under the action of a plunger the clay thusfilled into the mould presented to it is compressedtherein. When this is efiected, and the cam in itsrevolution has passed out of action, the weighted cranklever draws back the plunger N out of the mould. An-other movement of the cy
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbr, booksubjectbricks
