Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 4,149
Coffee Mill
Patentee:
Beriah Swift - Washington, Dutchess County, NY

USPTO Classifications:
241/163, 241/261

Tool Categories:
agricultural machines : coffee mills

Assignees:
None

Manufacturer:
Unknown

Witnesses:
Isaac Lawton
Henry C. Haight

Patent Dates:
Granted: Aug. 16, 1845

Patent Pictures: [ 1 | 2 ]
USPTO pdf tiff
Google Patents
Report data errors or omissions
Martin J. Donnelly Antique Tools
Description:
My invention consists in cutting the inner or grinding surfaces of the mill plates into circular rows of teeth, concentric with the axis of the plate and projecting from the surfaces of the plates, so arranged that the teeth of one plate extend into the spaces between the rows of teeth of the other in combination with furrows in depth equal to the teeth and in lines running from the inner periphery outward technically termed " eight quarter dress " and also in combining with this arrangement of teeth on the plates a cone or cylinder of breaking teeth to prepare the grain, &c., &c., for the grinding teeth by which I increase very greatly the quantity of grinding surface in a mill of given size and enable it more effectually, uniformly and quickly to grind the substance under treatment.

Copyright © 2002-2018 - DATAMP