Small projections 29 on the end of the blade are then upset to fasten the plug in place. A small plug 26, having an annular flange 21 on one end, is entered in the notch 23 far enough so that the end of the blade enters diametrically opposed slots 28 provided in the flange 21. In this way the bearing at this end of the blade is made as large as the one provided at the other end, as will soon appear. The prong '22 is arranged to be passed through a hole 24 of larger diameter provided in one side wall of the hopper, whereupon a bushing 25 is pressed onto the prong to have a close working fit in the hole. The blade 20 is formed with a small axial prong 22 at one end and a notch 23 at the other end. 2, is of helical form, whereby to make for smoother and easier operation with the hand crank, one radial prong at a time being passed through between the bars, instead of the entire set of prongs. ![]() ![]() is supported on the side walls of the hopper by means of lugs 2| provided on the plate projecting through slots provided in the side walls of the hopper. 2 how the nut meats or other material to be broken will always drop down into the crotch in front of the teeth I 9, so as to be broken in the movement of the prongs between the bars forming said crotch. The plate I! is bent to V cross-section so that the bars l8 form a crotch, and the prongs IQ of the blade 20 move through the crotch in the direction indicated by the arrow in Fig. The two parts mentioned are stamped from sheet metal for economy in construction. The breaking or comminuting means 6 provided in the bottom of the hopper 1 consists preferably of a grate plate I! stationarily mounted in the hopper and slotted transversely to provide a plurality of equally spaced parallel grate bars l8, between which the breaker prongs IQ of a rotary blade 20 are arranged to operate. A47J42/24- Coffee mills Spice mills having pulverising beaters or rotary knives hand driven.A47J42/22- Coffee mills Spice mills having pulverising beaters or rotary knives. ![]()
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