[1]Patented Mar. 25, 1952 2159Ot795 UNITED STATES PATENT OFFICE 2,590,795 GYRATORY CRUSHER Harvey H. Rumpel, Whitefish Bay, Wis., assignor to Smith Engineering Works, Milwaukee, Wis., a corporation of Wisconsin Application April 7, 1948, Serial No. 19,470 ]In Canada June 17, 1947 3 Claims. (Cl. 241-216) 2 The present invention relates generally to improvements in the crusher art, and relates more speciflcauy to improvements in the construction and operation of gyratory crusher for reducing hard substances such as rock, ore and the like; 5 and this application is a continuation in part of my prior application, Serial No. 729,708, filed February 20 1947, now abandoned. The prim@ry object of my invention is to provide an Improved gyratory crusher which is sim- 10 ple and durable in structure, and which is also highly efficient in operation. Many different types of gyratory crushers for reducing hard substances such as rock and ore, have heretofore been proposed and used exten- 15 sivel ' y, and some of these prior gyratory reduction crushers are operable at high speed and with relatively extensive crushing stroke in order to utilize impact as well as mere pressure in effecting rapid and efficient crushing. These im- 20 pact gyra@ory crushers ordinarfly employ a relatively long upright eccentric revolvable at high speed within a sturdy frame in order to gyrate freely rotatable crushing head cooperating witil fixed crushing concave to form an annular 25 outwardly and downwardly flaring crushing zone; and the actuating eccentric of each of these prior machines, is ordinarily mounted upon a stationary thrust bearing coacting with the lower end thereof, while the crushing head coacts with the 30 opposite upper end of the eccentric through a revolving thrust bearing, the intervening portion of the eccentric serving as a guide bearing coactiilg *ith the fixed frame and with the head Joumal shaft. These remotely separated thrust 35 bearings are preferably of the anti-fricti-on tyde, a@ shown in my prior Patent No. 1,993,900, granted March 12, 1935, and when the head is gyratable and rotatable about an axis which is inclined relative to the central vertical axis of 40 the eccentric, the stationary thrust bearing is disposed horizontal or perpendicular to this central axis,.while the revolvable thrust bearing is disposed perpendicular to the inclined eccentric axis, that is, at an inclination relative to the 45 horizontal fixed bearing. It has been discovered, that this widely separated disposition of the thrust bearings associated with the opposite ends of the elongated, eccentric, tends to produce uneven loading of the 50 intervening external eccentric guide bearing thus introducing extremely high and -excessive local pressures which cause undesirably rapid bearing failures. It has also been found that the wide separation of these thrust bearlng4 gncl the 55 mounting of the eccentric upon a flxed thrust bearing located remote from the crushing zone, permits the elongated eccentric to tilt relative to the stationary thrust bearing, thus also causing relatively rapid and non-uniform wear in this thrust bearing and in the outer guide bearing. The location of the other or revolving thrust bearing near the crushing zone and between the head and the eccentric, is however perfectly satisfactory, since the internal eccentric guide bearing cooperatds with this movable thrust bearing to positively prevent relative undesirable tilting of these coacting elements. A proposal has heretofore been made, to eliminate the use of the relatively long internal and external eccentric guide bearings in crushers of this type, by providing ball bearings at the upper and lower ends of the eccentric sleeve sepa:rateld by a long intervening,space. In this prior proposal the eccentric is provided at its upper end with a flange the bottom of which coacts with the frame of the crusher through a ball bearing and the top of which coacts with the head through a similar ball bearing. The lower end of the eccentric also coacts with the crusher frame through an external ball bearing and with the head guiding shaft through an internal ball bearing and the upper and lower sets of ball b6aring; are separated by the intervening vertical space which is devoid of contact between the eccentric and the frame and head. The ball bearings alone must therefore resist both the vertical and horizontal components of the enormous crushing pressures, and this is highly impractical because the ball bearings must be made too large and cumbersome to permit installation thereof within the available space. Then too, the ball bearings of this previous proposal were not properly mounted to maintain them accurately centralized relative to their respective axes of rotation, thus introducing further objection to the proposed structure. It Is therefore a more speciflc object of my present invention to provide an improved bearing assemblage for gyratory crushers, which functions to firmly confine th6 parts in proper relative position and thus vastly prolongs the life of such machines. Another specific object of this invention is to provide iinproved bearings for the head and eccentric of a gyratory impact crusher, which will most effectively resist normal crushing pressures and will also positively eliminate tilting of the eccentric and of the head carried thereby relative to the main frame.
[2]A fur'ther speci-9c obj'ect of the iii-@,7entioii is to provide an iniprov@,d drive for gyrato-,-,y tion crushers or the !-Ike, N-vhich is c-,-@,trenqc-ly di,-raiale and ef.Licieiit ha oieration, Ilad which iiia-1, also be auie@,IY a--,-id converiently o;sseir.'Lli@3@-I @-1, dismantled. Still anot'4,ler speciiie object of ri-iy ;--,iventioii is to provide an improved in,.ounti,.-ig i@o--,, ae'LUa@iiig eccentric ard crushing head of a high gyratory crusher, vihe--.-e'uy 'Lhe h.--,@),d is mr-,s@. e4ficiently freely rc-tatably sopported upoia a,nd is effect4@Vely gyratable by Viie ecce--itric, @vhile the latter is also most eff@icic-nt--,y -Iouriia',Ied for rot-@ltion relative to 'Llie mai-ii cr,,;sher.Lr,,)riie. An additional speci,-ic object o,-' -Cie i)resei,@t 3iiveiition is to provide @iii irn-.,jroved 'ng assemblage for tlie eccentric of a gyratcry Crusli-ier actuating me,-.Iiaiiism Is vie!! r-ro'uccted a.@ainst rar@id wear and o'u-her possible d@Lrilag-@, ,%vhile being suseei3tible o-F nbund@qnt ilibi:icaticn, clurhig nor@-nal use. These and o' ,her objects and advantages of tiie invention will be appar,-iit fro--i the _folloviiii@, det-ailed description. A clear conception o.c t',"e var-10as featu-.-@,os coiistituting my present iinp,,ove@- nent, aiid o4@'. the mode of coilstrue,ing and of operat-iii.- a typ@cal high speed gyratory reducl@ioii erj,.sher, ing tie inventiol.-@, m,-,,y be had by r-@-Ferrin', to the draw-in.- occompa-@iyi-ii,@ and forna;.,ig a o:F this specificatio-q, wh,,reii-i -@ike rcfer@-nee ep.-,.racters designate t@lie same or s-ILmilar The single fig@,ire of the dra,,,jin.- is P, vertical section t.Liroiigh a typical high sz)ced gyra.tory crushe,@ emboa-ying n,,.y improvcd h@@ad -,,,,pp(rtiiig and gyrating -nechailism. While the inventioii has be-,n showii -.@,nd described herein as b@-ing advantap@eously ppplicable to a high speed, long throw gyratory crosher ivlierein the concave is stationary a,@acl the head is suPport6d a--qd gyratable f2orn Ler@,,ath so as to provide an uiiob,@tructed f--ed i-alet, it -is not my desire or intention to upnecessaril@y restrict the scope of utility of the i--,iprove,@-ic-,Iit 'ry - ,7@irt-oo o-f tl-iis 1-imited disclosure. Referring to the dra@;,jilip;, the liigh specd gycatory reduction crushe@ diselosed therein by way of illustration, comprises in @erieral, a ri, aiii frame 4 haviiig ail integr,-@l rield ce,-itral hib 5 pr,3vided with a:i tip@right bore 0 and a-so hav-1r@,- there-,,i an anliular crush@-d riaterial dischar.le space T; a concave 8 carri.-3d by the 'Lrame P, 2,bove the :hub 5 and havi,@i, a reiiewable linp-1. 9 provi-dedcentral fr6sh mater-lal iillet o-,,3ehing I i disposcd coaxial relalive to the cehtr,,ii a-.,,is @ 2 fra-,no bore 6; an eloiigat.-d eccentric haii-ng a--el outer cylindrical peripherai sui-face journblled fo-,-, rotation in thp- irame bore 6 ancl also havipg an internal ta_oered eccentri-- bo@--e 1,,-, gcnerated about an axis IO which is inclinecl. rel@ative to a--qd i-ntersects the axis 12 nea,. the --'z-ed oi@-aninr,, 11, the eccentric 14 being provided v.@ich -, rigid @.-,,tegral flange 17 Lroject-l,-,i.- out,,vrardly fromi i-ts upper end and over the frai-.ae hub 6 and al,5o h?@17ing an i,,Itegral annular extension 29 pro-ject'-iiig i-lpv-iardly beyond the flange i 7; a lo-@ver aii,@ii-iiar roller-type thrust bearir-, g .1 1.1 int@-rposed betxieen ti ie bottqm of the eccentric fiange I and the toi3 o@' the frame hub 5 and lying i.n pla;@,e to the vertical axis a sim-ilar ulp,-,i- 2,n-,-,iula--rollertype thrust 1:,ea--iiig 2'0 c3.ispo@sed dire.-tlx,7 above the intlegral ec,,ei-itr-ic fiaii,-e 17 and ,n,,i.,ly surrounding the rigid extensio-.i 2,@'; by lying iii a Plane peipendi-cular to the axis I'@z at-Id inc'iiicd with an annular cruqhinq 13 0.-,id wi-th I 2,590,795 4 to 'uhe a-:;Is 12; a hcad 21 coacting witli the t,@-P of the EaT-ige @ 7 th-roogh the iipper thrust 23 aiid hjviiig P, rene\x@@@ble i.-.aiii -Tnantle @2 with -@r, a@-inul@@,r crushing surface 23 5 con,-,erati- @,,Tith tr,,c conc:).ve sur'ace 10 to ProV; 2.n c@u-t-,,,.iardly @,,id downv,,ardly fi,,iring eiushzor@e 'Uhe head 2 @ a'@,so being provided with ce-itrol gcicie s',aaf@-. C"') -ioarT-ia'@led for free the -,apored eccentric bore 15; io ,i bev@,l gear 2,17, socc.,red to the lower end of ccr@c,@ntr-ic f r@ c,,)act-ng with a dr: ' ving piriicii 27 @e@@u-c@-d to erasher driving shaft 2a. riii@,"n fn@ me li sho',Ild be of sturdy conth@@ la-@-,.b 5 h?.s an integro.1 upward 15 the lo-@,7er roller aild 's p.:e'er@-;',,-),Iy cast iii-egral with the ou'be,,, f,:az,@ie 1)einf,, connected tlierewith ',,,y he,,lvy i.lite-ral ribs 3;3, ,,,nd the upl)er @i:ushi.n.- ol-, coreal7e 8 is ti'@tably ,noull-tC,) ed ul,,o-,i a su-,-.,oortizig r-',V-- 3,' vvhich is vertically s@,.cu,.@2Cz to the frelrfic -qjall by :n@,@aas if on wede-c 62. As shown, the I-:iiei: 0 's i@rgvided viith an al.)proxiiriate',y ci:-o,,-,hiiig sui-f-,ce 10 which ,liith a -,phn -rical crushiiiq surf,-ce 23. c?,i 4@-he he@-,d 11-o p.-OC3-.tice the -flarcru,-,hiiicZ z,)ne ',Ii, but @ ese surfaces ,h 23 -in sh-,,-@e +.o suit (ii.,@ierent T,:,-,e Iiiier 9 is C,.etachably 'uo th@, cc-;icavtL- L@ by b@,I'bs 33, a.,id the con@-,iith ?,n@ft ;s nrz,.i-ia'ily 1,@eld s.,,iugiy a,@ainst ),niiul,-,r r'@--',ge l@, foriiied on +.he sup:Y.,eanF, o@r aiirlular -,erieF, @p.,in-s 33. The.@e sp;:Ings '6 -,cncav@@ fk@l,nge react 2,n aO -,Tihich is conliectc d to t.aa- t b.@7 ra ds Z 9, aiid which cari-3-cs, fc@,d '@3 ha-viiig ,,n outlet vcr',,.i,-a! tile concave @, I E,;.-,d dar-,.,ig conditions ;.n cl@,3ci-at-to)-, c-,' tie 36 may -@s to perir,,".t tlie o-oiicove 8 to i-.-.o7@e @-@7,,-ay tie i.-ad 2 @ and to thus preveilt i.-) to th,- -,induly s@@resscd cru@-her par'u,',. Ilowp-,,@ por@.-iop- o@ the coiicave supp(,,rtin,,-, y 3 -- r t h,, e a d c cl -@'i h -l,@ e t h e e x j -is ',@'ted "l-i ari a-@inu-,or @er,@'es aii,,t aiinu,sar wedge 31@ pe5@) thi@ea,@--s cor)@ceral,)Ie -@,,ith the r e,,@ c -s cil ',he ni -,iid has an iil'orial. s@,i--@'cace f@2 ,Fihi--Ih vvedgingly cocperable @@.74th 9, tai,,ered e,@l.'ernal --crface forried oil the o-c -fra-@me 4. A ratchet ?@3 which is 55 cl)era'Qlc b7l,- of E,,, lcv(@r C@-.3 pivotally a@@sov,,;Itli ti,@e (,, i@i operable to re-,7olve s,,-..ppo-;--t-;-,.I@,, 3@, --'@-cut the annular wedge so ,,,s to -ca"@se or lower the coiicave 0 @Lo 'uh,@re'3y -,,ary the vertica'A width of the kiO zone ,i-fd '@hc- clinulir wedge @12 may be si:@3.,@,ad 'co tliie eteme-.its iii ad';t,,,,.'U-,d posiby 4 0_ e lij s r ' p@, -e 0 , 9,,- :F) 1,@o cq-rr, , by -;.,i order !-.o protect the adgr@@t aiid du,@.'Q,, the c,oii95 a-ve s 1DPal,ti-," is a'Aso provi.deci v,@ith an -alin, :oacts with r;:) .@ih ch sc y of t'., c O"Itey frar-ie w,,,i3.1 Prc)und t'@ICc,.,-cLsced iiate::ial d'@scharge srjace '@, @nd wear shiell@, @-i niay o,@,o ',)e 1:)iovi@cled above fl.-a-.,7ze r-lbs i,,3 4 U - - ,o rr.,alled -,@or rota'@-'an tha bore o' of t,-ie fral-iie hub D aj--iCE e,,,tei-ision to, @3i,eferably has the -L-i'liage @7 v,,ad e,-,Lension 29 7.r) iiitegro.1 .,i;lth il@'s ijpl)e,- end, ard 'the v,7ei.-ht ,@ava 8 h,.t,,i an flonge 31", which
[3]of this eccentric as well as the maior downward pressures exerted thereagainst, are obviously borne by this sturdy flange 17 so that the long frame bore 6 serves primarily only as a guide bearing for preventing lateral displacement of the upright eccentric. The anti-friction thrust bearings 19, 20 between which the flgnge 17 is interposed, are preferably of the annular roller type, each comprising a series of cylindrical rollors radiating from the bearing axis and having individual axes lying iii a common plane; ai-id the plane of the 10wer roller beariiag 19 is disposed perpendicular to the central axis 12 of the eccentric guide. bearing bore 6, while tlle plane of the upper roller bearing 20 is inclined relative to the horizontal and is in fact perpendicular to the central axis 16 of the ta-pered eccentric bore 15. The annular roller bearings 19, 20 are accuratel@,positioned and centralized relative to their respective axes by the rigid extensions 18, 29 Nvhich also @erve to lengthen the guide bearings-, and are enclosed by a; freely rotatable vertically extending sealing ring 49 carried by the rigid flange 17 aiid coacting through labyrinth seals 64, 65 respectively with the bottom of the head 21 and with the top of a wall 50 formed integral with the frame 4 and providinu a lubricant chamber 51. A counterweight 48 which counter-balances the weight of the head 21 relative to the eccentric sleeve 14, is secured to the periphery of the ring 49 between and outwardly beyond the roller thrust bearings 19, 20 nea@- the upper ei-id of the eccentric. The seal-'Ing ring 49 additionally coacts with the interior of the anriular stationary frame wall 50 through a snap ring 52, thereby effeetivel@ protecting the various tlirust aiid giiide bearings a,gainst entry of foreign matter aiid possible escape of lubricaiit. While the eccentric 14 is suspended diroctly from the top of the frame hub 5 by virtiie of the direct coactioxi of the flange 17 with t,cie'lower thrust bearing 19, the ciushing liead 21 is supported directly upon the eccentric 14 by virttie of similar coaction with the upper thrust bearing 20, thus concentrating tlle thrust beariiigs for both the eccentric aiid the head as near as possible to the crushing zone 24. Tne head 21 is positively prevented from shifting sidenvise relative to the upper thrust bearing 20, by the rigid eccentric extension 29 and by the tapered shaft 25, the latter being rigidly secured t@o the head and coacting with the guide bearing or eccentric bore 15 but being freely rotatable therein. The main head protecting mantle 22 which has the crushing surface 23 formed ther6on and coacting with the frustro-coiiical crushing surface 10 of the concave liner 9 to produce the crushing zone 24, is adapted to be firmly secured to the head 21 by means of a mantle attaebing stud 53 and nu'T, 54 coacting with an auxiliary upper mantle section 55, and these fastening elements may be protected by means of a cap 56, as shown. Alth6ugh the crushing head 21 is freely rotatable relative to the crushin_g conea-ve 8 and to the eccentric 14, the latter is positively rotatable at any desired speed, by means of the gearing coa.cting with the lower extremity of the eccentric. The bevel gear 26 is firmly but detachably secured to the bottom of the eccentric 14 by one or more cap screws 58 and a radial key 57 shown in crosssection near the axis 12 relieves these caD screws of shear, and the gear 26 is enclosed within the lubricantconfiriing chamber 51 by a bottom closure plate 59 removal of which gives free access to the gear 26 and pinion 27. The con2,500,796 6 struction of the bev@l gear 26 and the attaeliment thereof to the eccentric 14, are somewhat simplified by eliminating all thrust bearings for the eccentric at the bottorli thereof, and the bevel pinion 27 which is secured to the Inner end of the driving shaft 28 is also housed within the chamber .51. The horizontal drive shaft 28 is mouiited in bearings 60 carried by a tubular bearing box detachably secured to the frame 4, aiid 10 this shaf IV' 28 may be rotated at any desired speed by means oil a pulley or otherwise. In order to insure proper lubrication ol@ all of the bearings, the plate 59, gear 26 and eccentric 14 are provided with suitable lubricant conducting pas15 sages, ports and grooves communicating with the chamber 51, aiid through which lubricant is adapted to be constantly circulated by means of a p@imp 62 operable by i;he drive shaft 28 whenever the crusher is operating, 20 Duriiig normal operation of the improved gyratory crusher' when power Is applied to the dri-ving pulley 61 and shaft 28, the eccentric 14 will be rotated through the intermeshing gears 27, 26 to gyrate the head 2 1, and the lubricating pump 25 62 will be siinultaneously actuated to circulate abundant lubricant to all of the bearings and motion transmitting gearing. Raw or fresh material delivered to the supply hopper 40@ will gravitate into the crushing zone 24 through the 30 central inlet opening I I of the concave liner 8, and will gradually advance donvnwardly and outivardly through this zone 24, being reduced or crushed as it proceeds, by the gyrating head 21 cooperating with the normally fixed concave S. 35 The finally reduced material is eventually delivered from the annular 6utlet opening at the discharge end of the zone 24, and drops by gravity through the annular space 7 and slides down th e inclined surfaces of the shields 47 to suitable 40 receptacles. During this reduction of the material, tlle head 21 and its retaining shaft 25 are free to either revolve with the constantly rotating eccentric 14 and extension 29, or to revolve renrersely of tile 4.r) direction or rotation of the eccentric, or to remain fixed with respect to the head axis I 6, but the head 21 will be constantly gyrated about, the central crusher axis 12 whenever the eccentric is rotating. The major downward pressures exerted upon the head 21 as well as the weight of the eccentric 14 @and gear 26, will obviously be borne by the roller thrust bearings 19, 20, and the long guide bearings for the eccentric 14 and shaft 25 afforded by the frame and eccentric bores 6, 1 5 and by t-he extensions 18, 2 9, will be sul)jected to very slight components of downward pressure and to o@@,her components of horizontal or lateral pressure distributed uniformly throughout the extensive areas of these guide (io bearings. While the roller thrust bearings 20, 119 will obviously permit radial displacement of the head 21 and eccentric sleeve 14 in order to compensate for looseness or wear in the guide bearings 15, 6, the eccentric and hub extensiori,-, C@5 29, 18 will also resist any tendency of t:@e thrust bearings 19, 20 to shift laterally to a,,iy undesirable extent and will thus rqaintain these annuiar bearings generally centralized relative to their respective axes 12, 1 6. If abnorma.1 pressure de7o velops within the crushing zone 24, the springs 35 will promptly function to relieve such pressures by permitting the concave 8 to rise or tilt with respect to t I he supporting ring 31, and the degree of reduction of the material may be read7r) ily varied by raising or lowering the concave 8
[4]2,500)795 7 Nvit,!,i the aid of the r,,,.tr.,het P,3 and ic-vor rollers -interpos,-@d. Cti2:ec,@,ly betweeii the bottom iiiereasinp., or the vartical o,i. of sa-ld fiarge and an ubper surface of said frame tb.e crushing zone 24. outwp r(fly bp-yonrj. said frarne bearing and conFi-om the foregoiirPS detailed s'6itiitin,- '@he qole me@).Tis for slipporting the be appareri'@ 'that ):iy p--cec----,it 5we-ight c-i. sa'td sieeve a.,-id of the ele-Tnents resti-ng P,;,Ovi@@es q ".Iev" , yi,-tory -,t c-rlishing head dieposed above said crusher which slr@@,ve and having a r,'Lgidly attached dependiiig extre,r).ely d-arable "s alsp, h' s--"ia-ft '-ror free rotatio-@l within said ef,li,.ie.,,-it i-,i operat-'@c,,-- ,.. ecceiit i,-."c bea:,'.,.-..-ig az,.d a'@so hav-iiig an upper surt,'@on aild 6-isp.@s;t":,-i.-i of ti@.e 10 face cool,:,eratirig v@jith concave to pi:ovi-de an and the@.r coacti-or. v@;lt'Li 1,1'e aiid outixiardly flaring an Lirper thrus', bearing coms-,ries c , - @ r a d i a l r o l l e r s i n t e r s a i d h e a d , , . n d a n u p p e r iieii.t.-, of the 15 said L-ian@,-a ovtvvardly beyond said ecv e @ - , t l c q @ l l y e : @ @ ' e n d i n g r i n g s u r e x t e i - . l s i v e b e a @ . , i . , @ i s , S u . - c , a c c - s c f so,- '@d and a sealing means lc bear-iigs, ira,-cs l,ire,isurc,s Pi).d cori-e.,- i z,@,-.d ond tia.- alld also having u,, 7- jear 'heqc _:,i This of th@ r@-,eoxz betwe,,n said head and ,@hru.st cc 2. j@iid a ,oa-,iterwa@gh@' @or said head assopact 1--ut du):,,iL)le ;- @@ril@hery of s,-,id r-ir@g betweeii + tric and frame 2'j, alid niiiiir.,iur@'i po-\TTc,, b'7 pi:; a.-,--.t dif.tribiltirg the pos,@(@, Ci'rc,-.3@Gly lii'olic!@,t-loil c@@ 5, a suopcrt fo-@- -.@cad 2@ -_,,yra'@ory orcishel-,, a, h a v i n . - a i i - r z ) r e , @ l n o - - . , i - . i a l l y r a d i a l l y l o a d e d t"eLi.. The c.@L a-@' th@-uc@'@- subs',ant@'.ally throughout the th,, eiil c,@ tl,,,:@ a, L;P,,- id fia3 @@ ie bcji: -,, .1, iica:; , a' y stati o@ia ry the di,iv e - nd c c; p. " @ a v e b y s E ),- J d fr a ril e c o a xi al ly tp,ch-c,aen@ a-- ,id a a'@ ,)i:e, a slec-ve jourrialled for rota7,i 'Ln sa'd '.@ear-lag and havirg an eceen.c,f the,, ea-,,3 scre@,@,s til- cf- the ti:i.c 'e a,4-s cj' whi-@13:@, i-,itersects the axis carri-('t thereby. T'-iie 01--, sa;cl, sz,,,icl. sl@leve, a norhub ;- a -- ,a',Iy -oacA@- fJ e---:t,,@ndiDg substantc7,i,z4@c.)a I ',,,oth ',h L - l e n g t h ( , f s o , - I d e c c e i i t r i c b o r e , saic7i sleo-i7a P, riF4ri i,,,pper.'Llange proj, @iiiet cver @iie udp@r eiid of said r, tl, -.e '@oa:e, a io;ier t,iruz@ I)eariiig irt@rposed iqaiige and an t- h c g b y b et -,ci he bof s o.L@ sa-"d ru'u@Tlar dly beyqn d ,F c@-,,d c.." ti --c,@e a'; I'@ the sole cf- "cc corcal!-o i@ w e i @ . , L i t o f s - d s , e e - t r e i f ze hC' 'I ai:id a ,@nd said lower the iigsP -I-, 17 oiirust sci-io-s of radial L @ e l @ e r i 3 c - r @ d i c u l a r t c ) s a i d , j r v v a i : 7c-, d s c @ - , - e a b o v e s a i C , 1 7 a - ,@t,,Ched del:e-qdi-n,, a-@il@! the enti.- @,e 'Is L f,-ee said ec-.acrj.,p -.s -ay -ty L@di iias e- rii, - j2,c; - ,il,Lvin,,@ ,;-II Lipper surface spacc, occup@n--, ig c-.per, ay, co". d to - rovide ar. ant(, pi-odi,,,ce crushed riular a-@id c-LttNva3:Ctly L-ipriiig crushth, interposed ily t-,) sai--' ,@nd a--,i tipper surface operation. of said -,'@a,.jg,3 oatwarcil@7 br;@-o--id said eccentric 1',@ siloul.('@ be ti-iat -'--t - n , 'G b a--oiii- havirig an -ti? !Li it.tL,,s tg or to tio prec@@@c 55 lyli-.- i:a a plane ' c o s a i d o c c , , D i a ' u - i i c b o r e , a , v e r t i . c a l l y @hc-i,ein s-@'Ao-in @@Lr,4c rJ e s @, r'; o r v -q -c (I IF cxteri @,-,na an.@l, havt;,e o'c ai)'i)e,,Idef!, be@vi@-,en sai,,-,, frari@e and the - .ce ai,).d e.'lso hgvi@iig -,dCilional iijeaiis @Tin.ay @o P:arso-@,,s iii t'@,, .@7t]so in@,eiided that spec@'fic hecqd d.,na the riiig, and a counterhere,iz, ' be riveii the b--tcadcs@l',)-@,7 tile Feriphery of tic,,n consis'@--iit v,7ith, tne ::i-.,- @g said 1:0'11@.-L' bearir@gs, I
