Patent Model - Apparatus for Crushing and Pulverizing Ore, Cement, &c.
Maker and role
Miles Dodge, Patentee
Aug 15 1882
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12 x 12 x 8 1/4" (30.5 x 30.5 x 21cm)
Dodge's patent "relates to certain improvements in that class of pulverizers in which the ore or cement is crushed or pulverized in a rotating cylinder or chamber by means of balls or rocks and mutual attrition of the particles..." One objective of his "improved device is to separate these cobble-stones from the auriferous material and throw them to one side, meantime utilizing them in breaking up the remainder of the cement." (Patent Number 262,652)
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