Rubber hand stamps and the manipulation of rubber; a practical treatise on the manufacture of India rubber hand stamps, small articles of India rubber, the use of rubber in surgery and dentistry, rubber tires, the hektograph, special inks, cements and allied subjects, also giving the sources of India rubber and its history .. . called. Originally rubber stamps weregenerally made in chamber vulcanizers. The next cut shows a combined matrix making,moulding and vulcanizing apparatus of very conven-ient and compact form and adapted for rapid the press stands in the cut the matrix press iss


Rubber hand stamps and the manipulation of rubber; a practical treatise on the manufacture of India rubber hand stamps, small articles of India rubber, the use of rubber in surgery and dentistry, rubber tires, the hektograph, special inks, cements and allied subjects, also giving the sources of India rubber and its history .. . called. Originally rubber stamps weregenerally made in chamber vulcanizers. The next cut shows a combined matrix making,moulding and vulcanizing apparatus of very conven-ient and compact form and adapted for rapid the press stands in the cut the matrix press isseen in front. A box or chase is carried under itsplaten by two trunnions, so as to be free to oscillateto a limited extent. The type model is secured inthis box. Above this box or chase is a cross-barwith screw and platen attached, connected at will totwo standards or pillars, so as to constitute thematrix press. A matrix plate swings on a hinge joint betweenthe two presses. The hinge-pin is removable. Its 02 RUBBER HAND STAMP MAKING ends can be seen projecting to right and left of thepress columns. The hinge is at such a height thatwhen the matrix plate is swung forward over thetype box it will rest upon it in a nearly horizontalposition. The pivoted box will adjust itself so asto come into parallelism with the Matrix Making, Moulding and Vulcanizing Apparatus. When the matrix plate is swung back it fallsupon the base plate of the vulcanizing press seen inthe rear. In use the composition used for the matrix isspread upon the matrix plate, which may for this AND THE MANIPULATION OF RUBBER. 63 purpose be removed from the apparatus, It isreplaced and the hinge-pin is pushed home. Thisis done with the composition coated side facing thefront of the apparatus as it stands in the cut. Theplate is then swung forwards, the platen of thematrix press being turned forward out of the way, ancis pressed down upon the type or other model thatrests in the type box. If desired the pres


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License: Licensed
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Keywords: ., bookcentury1900, bookdecade1910, bookidrubberhandst, bookyear1912