. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . and the frontslicker being water lubricating, each being oper-ated respectively as already explained. Good re-sults have also l)een obtained with a so-calledlirass scale finishing die in which the outerpart of the slicker is an iron casting, into whichis fitted j» wood(>n lining, wliich in turn is linedwith strips of spring brass. This slicker is ])ro-vided with a large number of channels, conduct-ing the water o
. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . and the frontslicker being water lubricating, each being oper-ated respectively as already explained. Good re-sults have also l)een obtained with a so-calledlirass scale finishing die in which the outerpart of the slicker is an iron casting, into whichis fitted j» wood(>n lining, wliich in turn is linedwith strips of spring brass. This slicker is ])ro-vided with a large number of channels, conduct-ing the water or steam from the outside of theslicker to the scales, thus lubricating the barof clay effectively as it passes through the still another form of die each corner of the bar111 clay is lubricatml separatily, and by means ofa brass plug at ejuii corner the flow of steam canlie reguliiteil or entirely shut off from any oiu ormore corners at any time desired. Thus, if onecorner of the die becomes clogged, so that thest(>am does not reach the corner of the bar ofclay, causing it to rulTle or tear, the steam can beshut off from the other three cornets. This will. Fio. C—Hand brick-repressing press. allow the fidl head of steam to reach the corner which is clogged, blowing out the obstruc-tion. BRICK-MACHINES. 97 Brick-Represfiing Machines.—Up to within a few years, the process of making orna-mental bricks, tiles, etc., was carried on entirely by hand, requiring skilled labor, and pro-ducing but a few pieces of work per day. An example of a repressing hand-press, whichwill produce designs of the most complicated pattern, and manufactured by Messrs. C. & Co., of Dayton, Ohio,is given in Fig. 6. The dies, whichare sujiported upon the fixed stand-ard al>ove, are made of finishedbrass ; and as one die can easily bechanged for another, the range ofpatterns possible is endless. Theclay is first struck out by a ma-chine, or molded by hand, in orderto insure
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Keywords: ., bookcentury1800, bookdecade189, booksubjectmechanicalengineering
