US2472725A - Crushing and grinding machine - Google Patents

Description

June 7, 1949. efwv; RUIQDLE cnusnme AND GRINDING MACHINE 3 Sheets-Sheet 2 Filed Nov. 26, 1945 June 7, 1949. w RUNDLE CRUSHiNG AND GRINDING MACHINE s Shee ts-Sheet 3 Filed Nov. 26, 1945 George Wliuwdle;

Patented June 7, 1949 UNITED STATES I PATENT omen: cittishmo m ifiomc monmt George W. Roadie, Edit Angl6, l2al1, ossiguor to Rudolph- L. Pummdg, James sullen,

all of Lot Angeles omit.

3ndsilvey Thi invention relates to cf'iis'hli'igfind grind iiig hieohoiiisoi and ha as it ofi'rhaty' otjeot the rovision of o maohiiio whit-in is taftimiiarly at glicabl fof use iii the dohiotit eisiiooal of got a'g;

Another oojeot it to provide a ortishet and grinaegwhioh aaoptea to to aoiiliea to the conventional hitoheh shut and to a sewer iiho aha operated to fiet i-e'dutioh of refu e food stiiffs' by a ci'iishiiig and gi indiiig 'aetloh in soon fhiofl that the ioiind irleltfidm may to mooted into the sewer main and thus to dishosed of.

Another object is to provide a dii'islief it"nd giindef iii homo atria similott ouhotanoes may he initially" crushed one than siibjocted to a grinding action so to tofoddt ''i-i'h Eiib'sttiflfi into s'iiificifi' y" fine oo'r'ti'olet 5% to poniiit thoii being iiitrodudd into a tower oioe through the uisiil titft stniomr'ez Anothf ohjoot it to otoi iae a 'iitsliiiig and grinding meohaiiiofii of tho above character em booting an arrangement or crooning toilets and a g'tiiidi'i'i'g' mochanisin in than feolatoihent of woffior bfokn hattfi may to reodii'y' etioota.

A fdithr object is to oroviae a finishing and grinding machine tvliih the tarts are to formed and arrahg'a as to be readily prod-hood and assembied and whih tnaohine l highly enicieiit in operation-t With the foi goingotjotts in View, togthet with such othi objots and advantages: as may subsequntiv aiiifleai, the invention fsidS in tho parts and iii the ofribiiifitin, oofistruttioh 93nd arrangement of lfilits hef'liiaitf defiiibd and claimed, and illustrated by way" of example in the accompanying drawings", in which:

Fig. 1 is a view in vortiogl' "sootioii, hartly in elevation of the ftisliifig and grinding mac-hm;

Fig. 2 is aoiogtamot the goat tianmission mechanism iiiuot ateo Fig: 1;

Fig. 3- it a detail horizontal sect-ion taken on the lih 3 3 at Fig. 1;

Fig. 4 is a viw ifi mi iev than or the (Hustl iflg and grindifi" i'hlidfiis'r'ii with the housin thereof line -4'--4 of Fig i: g

Fig. 5 ifs a heisiiett'i've View or a stationary grinding element;

Fig. 6 is a iieitootive viow'oi stationary filli block designed to bfisdcidted-with the gi'ind in eiemeht shown in Fig.- 5 and with rotary rinding" iollerii:

Fi '7 is a perspective View oi a oi'ushmg tenor; Fig. 8 is a detail in end elevation taken- Oh the line B ll of Fig. 1, as soon in t e direction ii'itiiin voi tiool section taken on the the tetotitrarrangement of a pair of crushing roiiors; and

- g; 9" SS7 a mom view of the" pair or oft-thing v parts of the machine 236 mounted and efiflsd monitor :5 and through a nodhy the end the motions A- and B bein as by bolts In engaging flanges II and I: on the seotiono A mid B rospeetively; sections C and ti bein ooniieotodtogether by bolts :3 connoottng flQfi l4 and IE on the sections C and D: the sections D and E being connected togethot by bolts l6 engaging flanges l1 and I8 on the Sta-13 tions D and E, whi'lo the sections A and B' are collectively" connected to the united sections D and E by bolts is passing through. flanges 20 and 2 I on the sections A and B and engaging Wall 'poi' tions 22 and 23 oh the sections D and E respo tivly'. The 'se'tiotis A and B constitute a 02$ iitg tot on elctrio motor 24'.

The interior (if the housing formed by the set? trons C, 1 3 and E is divided into chambers 25 and 26 by a partition 21 formed collectively of por thin of the sections G, D and E; the chamber 25 containing the crushing and grinding mech anisxh of the machine, while the chamber 26 contains a transmission mechanism for driving the trashing and grinding mechanism as will presently be dciibed and is designed to contain a suitalol'o lubricant.

The dflve shaft 28 or the motor 24 extends into is journaued in a bearing 29 carried in a standard 39 formed integral with the section E,- and mounted on the drive shaft 29 is a S'fiui goat 3i meshing with a gear wheel 32 on a stud shaft 33 journalled in and extending tlaro'ixgh the upper end portion of the standard '3 A toothedgettiwheel 34 mounted on the Stud shaft 33- meshs with ti, gear "wheel 35 on a shaft 36 'extndi'hg through the partition 21 acrosstheartition 3'1 sepomt in; the chamber 25 from a gear chamber at foifild on the end wan 3'9 of the housing soo tions 6 and D opoosite the partition 21. Tho gear wheel 34 also meshes with a gear Wheel M on a shoot 6! whioh; extnds through a bushing in the partition?! across the chamber 25 and is j'ti'i-fialld at its outer iid iii a bearing 4: oar wall 39 of the s'eotions D and E. Ttl oiitt end of the shait 3B is fittod with a gosh" Wheel 43 in tho ohambot with a corresponding gear wheel 44 on a shaft 45 extending through the partition 31 and across the chamber 25 with its opposite end journalled in the partition 27 as indicated at 46 in Fig. 9.

Mounted on the shafts 36 and 45 is a pair of complementary crushing rollers 41 and 46 formed with longitudinally extending teeth a of angular cross section with adjacent teeth defining an angular channel I) therebetween; the crushing ,rollers being arranged in offset circumferential relation to each other so that on rotation thereof the teeth of one of the rollers will move in and out of the angular spaces defined by the teeth of the companion roller. The crushing rollers are disposed in such spaced relation to each other as to afford a clearance between the faces of a tooth and the tooth a surfaces defining the opposed channel b of the adjacent roller, as particularly shown in Fig. 4.

Mounted on the shaft 4| in the chamber 25 is a pair of opposed toothed frusto- conical grinding rollers 49 and 58 having circular marginal portions 5| and 52 respectively which extend into circular recesses 53 and 54 formed in the opposed faces of the partition 2? and the outer end wall '39 of the housing in close proximity to the margins of the recesses. Teeth c and d on the tapered faces of the rollers 4'9 and 50 extend longitudinally and radially thereof.

The interior ends of the grinding rollers 49 and 5D abut a spacing collar 55 on the shaft 40 which collar has tapered end portions 6 and f leading inwardly from the mid-center of the collar to the ends thereof which lies contiguous the inner end portions of the teeth and d of the grinding rollers.

Arranged within the chamber 25 and projecting between the grinding rollers 69 and 59 is a stationary grinding element 56 having tapered side walls formed with teeth g and 72 arranged with the teeth extending downwardly at an inclination to the horizontal and in oblique relation to contiguous teeth c and d of the grinding rollers 49 and 59. The outer edge of the element 55 is formed with a V-groove 57. The grindin element 3 is arranged in the chamber 25 with its teeth g and it slightly spaced from the teeth 0 and d of the rollers 49 and 59 and with the Walls of the channel 5'! spaced from the tapered walls 6 and f of the collar 55.

A filler block 58 is arranged in the chamber 25 opposite the grinding element 55 and has inclined side walls 2' and a leading .to a longitudinal V-groove 59 on the reduced edge of the block. The block 58 is arranged in the chamber 25 with the inclined walls 2' and 9' thereof spaced a short distance from contiguous opposed teeth 0 and d of the grinding rollers 49 and 59 and with the surfaces of the groove 59 slightly spaced from the inclined surfaces e and ,f of the collar 55.

The upper ends it and Z of the grinding element 56 and the filler block 58 respectively are inclined downwardly to afford a hopper-like arrangement to feed materials between the grinding rollers 49 and 50 and the fixed grinding element 56. The grinding element 56 and filler block 58 are demountably secured in place within the housing by bolts m and 11 respectively, as particularly shown in Fig. 4.

The upper end of the section C is formed with an intake opening 66 through which materials to be crushed or ground may be fed to the chamber 25 above the crushing rollers 47 and 48 the opening 60 being preferably encircled by an annular threaded neck 6| adapted to be screwed 4 into engagement with the outlet of a sink or hopper. The lower end of the chamber 25 opens to discharge through an outlet passage 62 adapted to be connected to a waste pipe leading to any suitable point of discharge, Such as a sewer.

Means are provided for delivering wash water to the interior of the housing which is here shown as embodying a spray nozzle 63 opening to the chamber 25 through the section C above the crushing rollers 47 and 48, which nozzle is attached to a conduit 64 leading from a cutoff .valve 65 attached to a water feed pipe 66 leading from any suitable source of water supply under pressure. Also connected to the discharge side of the valve 65 is a conduit 67 which leads to the outlet passage 62 to direct flushing water to the latter for the purpose of augmenting discharge of ground materials from the machine. The valve 65 is of conventional construction and embodies a stem 68 fitted with a handle 69 connected to one end of a manually operable lever 10 fitted with a handle H; the lever being pivoted at 72 and being operable to swing the arm 69 to efiect opening and closing of the valve 65. The lever 70 is adapted to operate an electric switch 13 to close electric circuit through conductors l4 connecting with the terminals of the electric motor 24 so that on operating the lever 16 to open the valve 65 the switch 13 will be closed to direct current to the motor and on operating the lever 10 to close the valve 65, the switch 13 will be opened to cut off the current to the motor.

In the operation of, the invention when it is desired to effect crushing and grinding of material such as garbage, the lever 10 is swung from the position shown in full lines in Fig. 4 to the positionindicated in dotted lines so as to close the switch 73 and open the valve 65, whereupon the motor 24 will be actuated so as to drive the shaft 25 and the train of gears 3|, 32, 34, and and thereby revolve the shafts 36 and 4|; revolution of the shaft 35 acting through the gears 43 and 44 to drive the shaft in a direction opposite that of the shaft 36. The crushing rollers 47 and 48 being fixed in the shafts 36 and 45 are revolved therewith and move in the direction indicated by the arrows in Fig. 4. Rotation of the shaft 4| drives the grinding rollers 49 and 5D. The materials to be reduced are fed through the opening into the chamber 25 where they are engaged by the crushing rollers 4'! and 48 and fed therebetween where coarse and hard materials such as bones are subjected to a crushing action. The materials after passing between the crushing rollers are fed between the grinding rollers 49 and 50 and the toothed grinding element 56 where the materials are subjected to the grinding action and reduced sufiiciently to be readily passed to discharge through the outlet 62. During this operation of the machine jets of water are delivered into the upper portions of the chamber 25 above the rollers 41 and 48 through the nozzles 63 and at the same time a stream of water is delivered to the outlet 62 from the pipe 61 so as to eifect fiushing of the ground materials and augmenting their discharge from the machine. After termination of a crushing and grinding operation the hand lever in is restored to the full line position shown in Fig. 4 thereby opening the switch '13 to stop the motor 24 and closing the valve to terminate the flow of water to the machine.

While I have shown and described a specific embodiment of my invention I do not limit myself to the exact details of construction set forth, and the invention embraces such changes, modifications and equivalents of the parts and their formation and arrangement as come within the purview of the appended claim.

I claim:

In a crushing and grinding machine, a hous ing having an intake opening in its upper end and an outlet passage in its lower end, a pair of cooperative crushing rollers on horizontal axes in the upper portion of said housing contiguous the intake opening, a pair of rotatable conical grinding rollers mounted on a shaft in said housing arranged with their tapered faces extending toward each other, the conical rollers being located beneath the crushing rollers and mounted with their axes parallel to the axes of the crushing rollers, radially extending teeth on the tapered faces of said grinding rollers, a grinding element fixed in the housing on one side of the grinding rollers and having inclined side walls extending between and slightly spaced from the toothed tapered faces of said grinding rollers, downwardly inclined teeth on said inclined faces, extending in oblique relation to the contiguous teeth on the grinding rollers, a filler block fixed in the housing on the opposite side of the grinding rollers and having inclined side faces overlying contiguous opposed teeth of the grinding rollers, a collar on the shaft abutting the inner ends of REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 12,977 Wilson May 29, 1855 66,536 Thomas July 9, 1867 996,958 Wallick July 4, 1911 l,%59,7l3 Beggs June 26, 1 1,968,515 Coble et al. July 31, 1934 2,172,886 Gable Sept. 12, 1939 FOREIGN PATENTS Number Country Date 572,572 Germany Mar. 18, 1933

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