Patent Model - Improvement in Flour-Bolts

Maker and role
Gaspar Richey, Patentee
Oscar Hadley, Assignee
Loyal Knappen, Assignee
William Stuart, Assignee
Gaspar Richey, Assignee
Production date
Oct 22 1878
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Object detail

Wood, brass, steel
12 x 11 3/4 x 5" (30.5 x 29.8 x 12.7cm)
Richey's invention has these advantages: "That the machine occupies only about one-sixth the space of an ordinary bolt to do the same work, and that it can be constructed at less than one-fifth the cost of labor and material of an ordinary bolt, and will bolt two or more kinds of material at the same time." (Patent Number 209,193)
Object number
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