Patent Model - Improvement in Machines for Rifling Cannons
Maker and role
Adolphus Bonzano (b.1830, d.1913), Patentee
Mar 17 1863
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8 x 4 x 4 1/2" (20.3 x 10.2 x 11.4cm)
For creating grooves inside cannon barrels, Bonzano's patent is "especially applicable to a rifling machine having its parts constructed, combined, arranged, and operated in such a manner to make it portable, that it may be attached to and supported by the gun to be rifled..." (Patent number: 37,898)
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