. The Encyclopaedia Britannica; ... A dictionary of arts, sciences and general literature. A plate is secured on one end of thejournal. The entire space between the two iron plates isthen to be tilled with circular pieces of paper or pasteboard,exceeding by about I inch in diameter the iron plates, andhaving each a correspondent perforation, through whichthe iron journal passes. A cylinder is thus formed, thesubstance of which is of paper locked together by platesof iron at the extremities, and susceptible of immensecompression which it receives in a hydraulic press. Afterundergoing this prepa
. The Encyclopaedia Britannica; ... A dictionary of arts, sciences and general literature. A plate is secured on one end of thejournal. The entire space between the two iron plates isthen to be tilled with circular pieces of paper or pasteboard,exceeding by about I inch in diameter the iron plates, andhaving each a correspondent perforation, through whichthe iron journal passes. A cylinder is thus formed, thesubstance of which is of paper locked together by platesof iron at the extremities, and susceptible of immensecompression which it receives in a hydraulic press. Afterundergoing this preparation, the cylinder is exposed tostrong heat in a confined apartment in which the papeicontracts and becomes loose. It is again put into thepress, more sheets of paper are added, and this process goeson till the cylinder has gradually acquired the requisitecompression. It is then re-exposed to the ordinary tem-perature of the atmosphere, and by its re-expansion pre-sents a body almost remarkably compact, its specificgravity in this state being greater than even that of eihret 12 <. 11 C A L —C A L 683 The only operation now required is that of turning i(8eaperficiea until correctly cylindrical ; and this is a workof immense labour and patience. For dressing muslins, gauzes, lawns, and other goods ofa light kind, a smaller species of calender is employed. Itconsists of only three cylinders of equal diameter (gene-rally about 6 inches), and is easily moved by a commonwinch or handle. The middle cylinder is iron, and theothers are of wood or pasteboard. All the cylinders areof equal diameter, and are moved with equal velocities bymeans of small wheels. This machine is always used in acold state. By means of the calender, also, is produced the wavedor watered surface, known as moire among the French,and best seen in the silk textures called moire antique, andin woollen moreens. The effect is produced in a varietyof ways, the principal method employed consisting of pass-ing tw
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectencyclo, bookyear1902
