Rotary Food Mixer

Handheld rotary whip or food mixer, metal and wood. Large crankwheel mounted on upper framework, set vertically above a smaller cog wheel which enables the mixing motion when cranked by the crank grip, an attached knob-shaped unpainted wood handle. One flat mixing component, sheet metal, pierced throughout with circular holes, which rotates. Knob-shaped unpainted wooden handle at top. Outer side of crank wheel is marked:"DUNLAP'S/SANITARY/CREAM & EGG WHIP/NO SPATTER NO WASTE/COLUMBIA METAL PRODUCTS CO./CHICAGO U.S.A./SOLE MFRS & DISTRIBUTERS/PD/SEPT, 1916/FEB. 26, 190(missing) MAY 15, 1906".
The only Patent Number listed for a beater or whip under this company is US 1744445 A, January 21, 1930, William J. Casey, Chicago, Illinois, assignor of Columbia Metal Products Company, Chicago, Illinois. It is possible that the dates stamped on the crankwheel are for prior patents that led to this invention.
Maker is Columbia Metal Products Company, Chicago, Illinois.
Currently not on view
Object Name
date made
Physical Description
metal (overall material)
wood (handle material)
overall: 3 in x 11 1/2 in x 4 1/2 in; 7.62 cm x 29.21 cm x 11.43 cm
place made
United States
United States: Illinois, Chicago
place used
United States: Ohio, Columbus
ID Number
accession number
collector/donor number
catalog number
Domestic Furnishings
See more items in
Home and Community Life: Domestic Life
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
Gift of Mary Eloise Green
Additional Media

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