US899176A - Crushing-mill. - Google Patents

Description

asuma-Sum' 1.

Patentedv sept 22, 190s.

w. M. MUELLBB. i c'usma um.; APPLIU'LTIOH FILED IAB. 13, 1901.

' TWIKNGIII Pfflll .,ll-ll'f.,l

i i i i lUNrrED STATES. PATENT OFFICE.

i `WALDEMAR M. MUELLER, OF LOS, ANGELES, CALIFORNIA.

f cRUsm'NmLr..

LER, a citizen. of theUnited S`tates, residing at Los Angeles,icounty of Los Angeles, and

State of California, have invented new and useful Improvements in Crushing-Mills, of wlnch the followmgfisa specification.

This invention 'relates tocrushing mills,

` and the main objects of the invention are to provide a simple and strong crushing mill of great durability 'which can be taken apa-rt and readily transported and put together.

. tical section on line :r2-m1'2 Fig. 1.

Another. object is to provide a construction in which screws and bolts are dispensed withas much as possible.

`Other advantages of the invention reside in details of' construction, arrangement' and combination, as will appear in the following description.

Referring to the drawings z-Figure 1`is a plan view of the machine. Fig. 2. is a ver- Fig. 3 is a cross section on line ars-'z3 Fig. 1, Fig. 4 is a perspective view, showing in detail a stationary shoe support and its train of related regulating artsslightly separated in the order inwhic 1 they are assembled, the lower portion of a rocking shoe and its arm being also shown. A Fig. 5 is a` perspective of a uleruin link. Fig. 6 is a perspective in detail, cfa journalbracket and adjacent parts.

1 designates a pair of beams each of Awhich is preferably constructeih ofwood ywith an iron' or steel surface armor, by the use of which rigidity and "strength are secured without undueweight. The beams] are connected together near their ends by a pair Y of cross bars 2, each cross bar'having a -the beams and Vis provided on each' side with 'tongue 3 which'passes through aV slot in the armor of the beams 1, and is secured by a key 4 passing through the tongue and lying close against the armor, as clearly shown in Figs. I and 3.

. Journal brackets 5 are mounted above the beams 1 and aresecuredthereto by long bolts 6, as shown in Fig. 3, which pass complet-@lv through the beam 1., Mounted in each bracket 5"is a split bearing sleeve 7, tl 1e two sections of which are arranged. on opposite sides of ai vertical line through the center of the journal', andmounted in the split sleeves 7 is a shaf t S. The sleeves 7 are held in place by screws 9, which. sn'l'ord means for taking up .."ear. The shaft 8 carries a ilywheel l0.'

fulcrum bar I1 extends across between Specication of Letters.: retenir'. Y Agpiicaaon sied maren 1:3, 1907.- serm No. 362,237.

Patented Sept. 22, 19708.

Keyed to. the shaft S is a sleeve 13 which 60' provided' with a series of c ccentrics 14, the eecentries belng preferably formed integral ment four eccentric-s are em loycd, each ecwiththe sleeve, and in the present embodicent1i'c,as shown in Fig. 3, raving a central 6 5.

flange 15. Mounted on'each eccentric is'a split head-block 16, each section of which is provided with upper and lower lugs I7, and secured to each head-block by means of bolts 19, is a pair of' operating arms 1S', the bolts 70- assing through the arms 1S and through the ugs 17,' thus Vholding the two sect-ions of the head-block 'together and holding the arms 18 in position thereon. Each operating arm 18 near the'alowerendfis'provided with a trans- 75 verse concave -groove 2O similar to the grooves 12 inl thc fulcrum bar 11. The lower end of each operating arm 1S has an operative connection with the fuler'um bar 11 by means of a solid fulcrum rocker or link 21 80 having rounded ends as shown iii-detail in Fig. 5, which link engages in the concave groove in arm 1S, and con l.ave groove 12 in fulcrum bar 11. Near the lower end of each operating arm 1S is a crushing shoe 22, 85

the upper portion of which has a sloping face 23, the crushing shoe being detachably fastened to the operating armlSbymeans of a wedge-shaped dove-tail 24 which engages in a correspondingly shaped socket 25/011 the 90 operating arm 1Q. Each crushing shoe may thus be quickly detached and replaced by a new one when necessary.,A

Extending across between the o'eams 1 are two tables 26 \\'jhich, for strength, are U- 95 shaped in cross section, as shown in Fig. 2, and have end plates-2T through whichfastening bolts 28 pass to secure the tables to the beams l. Auxiliary tables 2!) are provided slightly back of each table 26, each table 29 100`v being T-shapcd in cross section, as shownVv m Fig. 2,. and being fastened by bolts 30 to the beams 1. Resting upon each table 26 are four shoe holders` 31.5

iown in detail in Fig. 4,

eachshoe holder being hollow but having a solidend 32whichis provided with a dove-tail socket 24 similar to the dove-tail sockets on the opera-ting arms 1S, and a similar crushing `shoe 22'is carried b vcach shoe holder 31.

ivi-thin each shoe holder 31, abutting against *A the head 32, is a safety block 33 which 1sv hollow, as shown, and has four solid fac-es a, b,

y 6,11. Each facelaandcis punch-able lbeing rovided with a Shallo\vpoeken'-r, while the aces b and (l are plain a though they might y alsov be provided with' such pockets if deisired. 'A resistance pin 35, having a head 36, is mounted back of each safet)v block 33,

` the end of the 1pin 35 resting in theadjacent holders pocket 34, am the head 36 resting vuponthe table 29. The rear face of each 'head 36- is provided with an inclined groove 37, and the cross hars 2, before described','are provided with a series of Vc.'orrespmiding grooves 37,'

and engaging in the grooyes', between the heads'lti and the cross bars 2, are wedges 3S each having a lug 3) througliwlnch passes an wedges 3S provide a strong and sim ,le means -of 'adjusting the position of the shoe holders l31A to give the necessary-s ace between the crushing shoes 22, while tiescrews 40 prei vent the wedges 3S from workingdown and taking of the. necessary two combined movements of rocking and mov-ing bodily by reason of the fulcrum links 21. Ore or rock to be crushed is fed to each set of crushing shoes, and as one set of crushing shoes is o cned up` ore falls Ybetween them, and as tiey close the ore is crushed by the opera.- tion of the adjacent crushing shoes. The crushing shoe which is carried by the operatingarm 18 liasfa substantially vertical movement and also a rocking movement, and. the combination of these two` move- Aments results in effectively crushingihe ore.

Asthe movable crushing shoe retracts from the stationary shoe it partakes iii-st of a slight vertical raise and then of a downward V movement which facilitates the movement. of

' crushed orepast the shoes as well as facilitatiiig the crushing o )eration itself.

It will be noted tliat a large amount oi friction has been eliminated by the method of'ia'u'ticulating the lower ends of the opel'- .ating arms 18, and yet a very strong construction, is provided. The relativev movement between thc rounded ends ofeach fulcruin block 21', with their coaeting parts, is very slightfand there is thusilittle friction even though the fulcrum'link 'is under a heavy compression strain, whereas in other constructions 'of'..this type of mill in which the lower ends of the arms 1S slide along a support, there isaI great amount of friction adjusting screw 40, the lower end of which' screw 1s swiveled' 1n the cross bar 2. The

punctured .face -c with the resistance pm 35,

developed.v Thus the present construction ena-bles the mill to be operated with less"V power and with less wear ofthe parts.

lf inoperation anything should be fed to thev crushing shoes which the. latter were, unable to crush, the. resisting shoe holder 31 would sustain an extraordinary backward pressure, as the movable shoecan not yield,

and this strong back 4nessure on the shoe holds. would -result in orcing back the asso-V ciated safely block', causing the resistance pinB to puncture the wall a at the pocket 34, whereupon the shoe hold'er and sa together with thel crushing shoe would be moved back for quite a distance until the end ol the resistance pin 35 contacted with the wall c of the safety block, and this yielding movement would 'obviously in many inety blockstances prevent great damage to the nia-- chine and moreover would not necessitate the mill being stopped. as the interfering noncrushable 4piece would fall through between the jaws u )on the lnrckward movement of .the shoe he der. lWhen the wall has been 'thus p'unclui'edthe safety block is slipped out from the shoe holder and reversed so that its wall (l rests against head 32, and its nonisplaced m conJunction has been puncturm in similar manner, the safety block may be replaced by another one, or as is obvious't'he faces l) and d could serve in their turn, although with both walls aand c punctured it would be preferable to substltutea new safety block as the punetured walls a and c would probably not- Uive suiicient su Sporting strength to the otlier walls. Obvious y the walls of the safety bloc-k are made sulliciently 4strong to stand the ordinary heavy crushing pressure, but are made with a limited margin of strength such that an extraordinary pressure will result in a p l not ure and thus relieve the mill from strain.

or breakage.

What I claim is:-

1.111 a crushing mill, crushing shoes, means for producing a relative movement between the shoes, means for resisting the retraction of a shoe including a hollow safety block having a plurality' ofpuncturable faces, and a resistance piu abutting againstV one of the puncturable faces. A

2. In a crusl ng null, a frame provided with a f ulcrum bar aud two tables upon each side thereof, a hollow shoe holder upon one of said tables, one end of which is open and the other end is provided with a crushing shoe, a safety block in said holder, a pin adjustably mounted on the, other table at one end with its opposite end in eueageinent with said block, a eam shaft, a headilock thereon, two larms secured 'at their upper ends to said block and having their lower ends; one upon each 'side of said fulcrum bar, each arm being pro-vided with a crushing shoe opposite one After the wall c.

'ofeac 1 fille-rum cams, each head being split and having ofthe s hoes on said holders, and a link en gaginv with each bar andthe fulcrum bar.

3. nacrushinv ing shoe carried thereby, a inovablecrushng shoe, a hollow safetyblockm saldshoeholder, 4 a resistance pm. abutting against said safetyblock, a head on the resistance pin, a stationary bar, and a wedge bet\\ 'een said bar and head for adjusting said resistance pin and shoe holder.

4. In a crushing mill, a. frame comprising apair of me tal armored beams, cross braces connecting said beams, each cross brace having artonvue project-ing through the met-al armor, a 'ey -passing through eachtongue back of the armor, journal brackets bolted to said beams, a shaftmounted in the journal brackets, a cam keyed on said shaft, a plurality of heads mounted on the respective hws, a pair of operating arms for each head, bolts passim f through the operating arms and lugs head thus securing the arms and head together on the associated eccentric, the other endsof the arms'having concave grooves, a fulcrum bar having concave grooves 1n opposite faces,fu1crum blocks havnxg rounded ends interposed between the bar and the operating arms andV en-A .gaging in said concave grooves, crushi .shoes carried by the operating arms, an 111-111, a shoe holder, a. crushstationary adjustable shoes for co perating with the first named shoes.

5. In a crushmg mill, a frame provided '1' with a fulcrum bar a-nd a recessed cross bar on each side thereof, supports between said bars and the fulcrunrbar, oppositely located shoe holders on said supports, a removable vsh'oe on the inner' end of each holder, a pinv for each holder having arecessed head'to register with one of the recesses in said bars, a wedge for each pair of registeringrecesses, means for adjusting said wedge, a shaft above the fulcruin bar provided with a 'plurality of cams, one for each pair of o p0 sitely located removable shoes, a pair o deending arms for each cam havin their ower ends, one upon each side of t e fulcrum bar, each arm beinu' provided with a crushing shoe, and a link tbetween each arm and the fulcrum bar.

In testimony whereof, I have hereunto set my hand at Los Angeles California this 23d day of January 1907.

In presence of GEORGE T. HACKLE'Y, FRANK L. A. GRAHAM.

WALDEMAR M.1\1UELLER.v Y, Y.

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