A new machine for the preparation of vul
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Wheatley, R. ;Porrit, B. D.
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Article
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1915
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Wiley (John Wiley & Sons)
⚖ 236 KB
I ( 5 ) More than ono qrialitv of rubber cqm oiind. inny be employed in uiakhg i4p np a r t i c t , for 1 instnncc, tlie sole, lieel and upper of a shoe, and Afcclinq kcld u1 Glauqoio on TuesdnU, 20th d p r i l , I 1915. ! ( 0 ) Tlie r:uv material rimy not be uniformly 1 inivecl nnd tlie vulcanisati