India rubber world . II. upper andlower halves of mold ; 12, rubber tire ; 13, valve stem ; 14, 15, coils for magnetiz-ing and heating upper half of mold; 16, 17, coils for magnetizing and heatinglower half of molds. engineer for The Diamond Rubber Co. (Akron, Ohio), and anexpert both in mechanics and electricity. Patents have beensecured by him in Great Britain, France, Germany, , Italy, Switzerland, Russia,Finland, Japan, Australia, Mexico,Canada, the United States, andsome South American countries. The inventions consist, broadlystated, in making use of an electriccurrent, to


India rubber world . II. upper andlower halves of mold ; 12, rubber tire ; 13, valve stem ; 14, 15, coils for magnetiz-ing and heating upper half of mold; 16, 17, coils for magnetizing and heatinglower half of molds. engineer for The Diamond Rubber Co. (Akron, Ohio), and anexpert both in mechanics and electricity. Patents have beensecured by him in Great Britain, France, Germany, , Italy, Switzerland, Russia,Finland, Japan, Australia, Mexico,Canada, the United States, andsome South American countries. The inventions consist, broadlystated, in making use of an electriccurrent, to close the parts of amold, or the platens of a press,and also to heat electrically themolds or the platens and thus eflectvulcanization. The currents used are preferablythe direct, for closing, and thealternating, for heating. Whileneither current is strong enough to be in the slightest degreedangerous, any degree of heat up to 400° F. is easily obtained,and may be controlled with absolute accuracy for any length of. ^o ^a FIG 2 —Mold for curiiigClincher Tires. Description: i8,19, upperand lower halves of mold ; 20, clincher lire; 21, key piece; 2a, infiat-iiig ha^ ; 23, valve stem; 24. single magnetizing antl coil,with wires running through valve stem.


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Keywords: ., bo, bookcentury1800, bookdecade1890, bookidindiarubberworld31phil