Bisbee daily review., 1910-05-29

The Quinner mill.-This mill was in vented by Mitt Quinner. who had be-
 fore this time invented an ore car.
 which he sold to Frazer & Chalmers.
 He then invented device for a sew in machine. which he disposed of to
 the Singer Sewing Machine people.
 Iheore crushing machine consists
 essentially Of a drum revolving on
 trunniols. the outer surface of which
 is made up of steel bars one inch thick
 by two inches wide by six feet long.
 The arrangement of the bars with small opening between enables the
 machine to act as a tronmei besides as a pulyerizer The material Is fed
 into the mill at one end and he mill Is so arranged that the oversize can
 be discharged at the other end. The
 hammers, while rigid. in motion are flexible. They are double, and have
 three chain links between the hammer
 and its attachment to the central
 shaft The hammers are square. but
 are so set that they present q wedge 1 surface to the material 90 be broken i They have a 20-inch swing. and re
 Volve at the rate Of 400 times per min.
 nte. having striking force of lSOC
 pounds. The mill Is six feet long
 and forty inchs in internal diameter
 and requires floor space Of five and
 one half by fifteen feet. and requires
 sixteen horse power 10 operate. The
 mill i1 use crushes to eight mesh but it can be regulated to crush finer
 The capacity is about zoe tons in
 ten hours of ordinary mine run. and
 Will handle some material which a
 stamp mill cannot. The number of
 hammers has been reduced from 7t
 Co 36. lt should be a good mill fol preliminary grinding for a tube mill
 and for cement work or for concrete It combines in one mill rock disiu iegrator pebble mill. and a tromme ? screen, as disintegration. pulverizins and screening are performed with tho same machine, By regulating th, | feed. adjusting the hammers so as ts irc-eas" or lessen the spiral and there
 hf fr '2se or decrease the carryin.
 tafac.t9 so as 70 choke the discharge end. ali Of the material can be pu through the screen. The mill cost
 $500. and is covered by patents botl p in the United States and Mexico - Some of the features patented are tn . Arrangements of the hammers. th flexible hammer the shaft and tron D mel revolving in oposite directions q and other special features Whil c this is a comparatively new mill. an
 has not been tried on regular min y ore. it win crush very hard quart q or limestone fed to it. It does nor l work than is necessary in breaking u s the boulders which carry no vaIu' 'i This mill has supplied a place in tn l. field of ore dressing. but as tO ho' D wide or limited it's field of operation
 is viii only be determined by tryin
 it elsewhere. It is successful, in ham d ling the congiomerate at fiOIGdo. an ei it Involves some radically new re le lures. and should at least prove ST m cessfnI in certain special case le Whether 1t is more efficient than rel Is or culshers will have to be determine It. Roy < Titcomb. of Nosales. are ma Es ing some of these mills and a coi ie pany has been formed to take oy es the patents and pun the mill on q ,h market At present only three mil is have been put to work. but others a he being turned out for the placer fiel he as rapids as facilities yin permit
 he -o---
 ,w In the sad straits into which ( L. ra a.....Ll...... .......- ha- fallen Inc cn