| US Patent: 20,258 
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| Meat-chopper | 
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| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Granted: | May 18, 1858 |  USPTO (New site tip)
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                        Jeff Joslin
 Vintage Machinery entry for Dole, Silver & Deming
 
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| Description: |  | This invention is of interest because the inventor was a co-founder of tool and machinery maker Dole, Silver & Felch, which became Dole & Silver, which became Dole, Silver & Deming.The 29 May 1858 issue of Scientific American described this invention as follows: "This machine consists of a circular and revolving tub mounted on legs. Two knives vibrate up and down in said tub, and mince the meat perfectly. The tub has a very slow circular motion imparted to it by a peculiar system of gearing, while the knives have a rapid up and down movement by means of a crank shaft. The machine, as a whole, is very compact and effective in its operation." |  |