Patent Model - Improvement in Preventing Cyrstallization and Blow-Holes in Casting Metals and the Alloy

Maker and role
Theodor Fleitmann, Patentee
Production date
Jul 15 1879
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Object detail

Wood, brass
1 1/2 x 6 1/4 x 3" (3.8 x 15.9 x 7.6cm)
Fleitmann's patent "related to an improved process of casting metals, such as nickel, cobalt, and others which are to be used for plating metals and alloys, and which are apt to crystallize and to form air-bubbles in the process of casting, and also to the alloy derived from such process." (Patent Number 217,523)
Object number
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