Annual report of the Regents . ed at a time, and one manand a boy can generally repress about 2000 a day. In asteam power machine two bricks are repressed at a time, and thecapacity is about 25,000 a day of 10 hours. In each case thepressure is applied vertically, and the dies and other parts of themachine have to be oiled frequently to keep the clay from sticking. Eepressing reduces the volume of the brick somewhat, thus inone case a brick before being repressed in a steam power machinemeasured 8| x 4f x 3^ inches, and after it 8li- x 4§ x 2|-. Drying The methods employed have already been en
Annual report of the Regents . ed at a time, and one manand a boy can generally repress about 2000 a day. In asteam power machine two bricks are repressed at a time, and thecapacity is about 25,000 a day of 10 hours. In each case thepressure is applied vertically, and the dies and other parts of themachine have to be oiled frequently to keep the clay from sticking. Eepressing reduces the volume of the brick somewhat, thus inone case a brick before being repressed in a steam power machinemeasured 8| x 4f x 3^ inches, and after it 8li- x 4§ x 2|-. Drying The methods employed have already been enumerated in thetable given on page 655. With few exceptions artificial drying is used only in connectionwith the stiff mud and dry press process. The drying of bricksshould never be hurried, as bricks dried too quickly are apt tocrack; but some clays can be dried much more rapidly than others,and so the drying capacity of the plant does not need to be as greatas in the case of clays that dry slowly. 00COCD Q) d CDO c C£ cc s. o o .aa ^ fl ?^o .£3 Olj o 1^ CO
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