Patent Model - Improvement in Rock-Drilling Machines
Maker and role
John Cody, Patentee
Production date
Aug 13 1872
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Object detail
Media/Materials
Steel, copper, brass
Measurements
13 x 7 3/8 x 4 3/4" (33 x 18.7 x 12.1cm)
Description
Cody's invention has for its object "to furnish an improved steam-drill which shall be simple in construction and convenient in use, enabling a hole to be drilled in a horizontal direction or at any desired angle..." (Patent Number 130,412)
Collection
Object number
2015.14.1466a,b
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