Patent Model - Vulcanization of Rubber Coverings for Electrical Conductors

Maker and role
John Smith, Patentee
Michael Smith, Patentee
Production date
May 12 1885
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Object detail

Cotton webbing, wood
1 x 2 1/2 x 5 1/2" (2.5 x 6.4 x 14cm)
The object of Smith and Smith's invention is to "vulcanize such coverings in such a manner as to avoid the detrimental effects of moisture on the insulating-coverings of electric conductors while such coverings are in process of vulcanization." (Patent Number 317,587)
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