Milling apparatus
OwnerJohann Georg Schnitzerinventor
Life of this patent
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Abstract
Upper and lower millstones are provided in a milling apparatus adapted to mill a wide range of cereal grains and other kernels. The upper millstone is stationary and is pierced by a central orifice through which the drive shaft of the rotating lower millstone passes. Cutting teeth protrude radially from the drive shaft in the region of the central orifice and cooperate with guide channels in the orifice wall to break kernels larger than would pass through the annulus between the shaft and the orifice, thereby supplying pre-milled kernel fragments to the opposing milling surfaces of the upper and lower millstones. Radially spiralling furrows in the milling surfaces further reduce the feed to flour, prior to discharge at the outer periphery of the milling apparatus.
Claims19
An apparatus for the milling of feedstocks, including an upper millstone, rigidly held in a housing and provided with a central opening for the admission of said feedstock, and a lower millstone, rotatably secured to a driveshaft, having a pre-milling means for the reduction in size of said feedstock prior to the entry thereof into the fine-milling region between said millstones, said pre-milling means comprising:
- a hob mounted on an extension of said driveshaft and being situated in said central opening;
- cutters, located on said hob, jutting out from the surface of said driveshaft and being substantially at right angles thereto, said cutters being separated by gaps;
- and
- at least one feedslot in the wall of said central opening narrowing in the direction of feed travel.
Dependencies are inferred from the claim text.