ery truck, can be inch ram in the top end of it, this ram being weighted process. The mixers, washers, and calenders are utilized with it! so as to maintain a pressure of 2,000 pounds, and serv- So far from either system being, as stated, ‘‘a form ing to secure a uniform pressure at all times… … treatment of the crude rubber is the softening, which In making the cotton-covered rubber-lined hose, is accomplished by throwing it into hot water tanks, SMALL HYDRAULIC VULCANIZING PRESS. which is used for fire department purposes, a some- fromm which it is removed some hours later, cut up into…
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