Patent Model - Improvement in Dress for Metallic Grinding-Rings
Maker and role
Edmund Howland, Patentee
Production date
May 23 1876
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Object detail
Media/Materials
Ferrous metal
Measurements
21 x 17 x 1 1/2" (53.3 x 43.2 x 3.8cm)
Description
Howland's patent was intended to "overcome the difficulties which have heretofore existed in adjusting the feeding ridges or drift with the grinding surface or drift, so as to make the feeding and grinding uniform." (Patent Number 177,718)
Collection
Object number
2015.14.2181
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