Patent Model - Centrifugal Fan

Maker and role
Friedrich Pelzer, Patentee
 Production date
Nov 26 1889
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Object detail

Media/Materials
Tin, paint
Measurements
5 x 4 1/4" (12.7 x 10.8cm)
Description
Pelzer states, "To obtain the desired end the invention consists of a centrifugal fan or ventilator comprising a wheel having a closed end, with the spokes or arms thereof forming discharge-passages, and wings forming a screw for conducting the air to said passages..." (Patent Number 416,070)
Collection
Rothschild Patent Model Collection
Object number
2015.14.3929a,b
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