US1630436A - Method and means for repressing bricks - Google Patents

Description

May 31 '1927.

H. K. KING METHOD AND MEANS FOR REPRESSING BRIcKs Filed July 14, 1926 1o sheets-sheet' 1 1.M.11l1 wmm 11111 111 .1.1wu11 1 111 1 o @@WM ..wL 1111\. 11 k 1 m. Vo o o, o -L 1 D 1 @Y DHU HHHU 1 D 11 Q16 o o ,1 .1 Il O 1 .111111 I@ Tn D@ 1 r 13); n@ bm.. 1 1- 1:,I 1 111- o o 1 14w 11|.d| |Ol. l|1 o Aw .IO |1111 111 .|1 n v O mmv NW n n-1 f11 t.. |C h. .5m 1 u. .QQ h. .om 9v n@ I @111 Nh. w m M,\ (Nm, e s e SNS. hvv n .1 o um.. .1 o vn .wc a, Nm, f NM bw. 1 o o mb. QN rtw.

Arroluvlay.`

` A 1630436 May 31,1927. H KKING METHOD AND MEANS FOR REPRESSING BRICKS Filed July 14, 1926 losheets-shget 2 u 71 f f 70 17539. 619

13 6.7 wig-1a 2. J6 6 l J3 4? @D o 30' o o .I .37` o o .ml/Enron:

zdr'dfjf A TTOHNEI.

Ma 31 1927. I

y lH. K. KING METHOD AND MEANS FOR REPRESSING BRICKS Filed July 14, 1926 1o sheets-sheet s ATTORNEY May 31, 1927. 1,630,436

H. K.`KING METHOD AND MEANS Fon REPREssING BR'IcKs Fi1ed July 14, 1926 1o sheets-shea 4 INVENToR lowardl I'irg,

ATTORNEY May 31,1927. 1,630,436

H. K. KING lMETHOD AND MEANS FIOR REPRESSING BRICKS Filed July 14, 1926 1o Sheets-s111191 5 INVENToR: Howardflzy,

BY www ATTORNEY May 31, 1927.

H. K. KING METHOD AND MEANS Fon REPREssING mucus Fiied July 14, 1926 1o sheets-shan 6 M ATToREY .m u@ m d n N Nwww $9 m ala l' KNEW w May 31, 1927.

H. K. KING METHOD AND MEANS FOR REPRESSING BRI-GKS Filed July 14, 1926 10 Sheets-Sheet 7 mi@ BY All IN VEN TOR.'

Jardin lll/1.

Ill/lll l l x g N a ATTORNEY May 31 1927 H. K. KING METHOD AND MEANS FOR REPRESSING BRICKS Filed July 14, 1926 1o Sheets-sheet a" ATTORNEY v Ma 31 v1927.

y H. K. KING METHOD AND MEANS FOR REPRESSINGy BRICK'S Filed July 14, 1926 10 Sheets-Shoot 9 INVENTOH.' Howarcll.

Arromvsr.

. May 31, 1927.

H. K. KING METHOD AND MEANS FOR REPRESING BRICKS Filed July 14. 1926 1o Sheets-Sheet, 10

IN VEN TOR wr-@Ema ATTORNEY Persuader@ 321,192?. Y

srs

cette,

BROTHERS COMPANY, A

rniiiisyrwiiiirii, AssiGNonTo oHAiyrnEn's comune-.Tron f I i PENNSYLVANIA.

rirnirrronfiinn 'MEANS- ron ranrnnssrnsnnroirsf ously, so as to vsecure uniform dimension of 20Veach brick notwithstanding the i' fact# that the different clots contain liicl'erentquartVV Vtitie's'ol" material. ,e The inventionl vralso" comprisesr ments in details of construction.-y Referring to the drawings, which. illus-r trate merel?.7 by Way of' example suitable f means foceii'ectin'g the inventions# F ig; 'l is afront elevation.l

Fig. Fig. l y Fig. isa section onlline 4,' tofFigfnQ Fig.V is a section on line 5, 5 of Fig.v l "Fig: 6 is a section 'on linel 6, G Qi' Fig. 3

the parts vbeing in different positions. iY Figs. 7,8V and .9 are sections similar 'that shown in Fig.` 6,' with the-parts in stilll i different positions. V f Fig'. lO is alsection onlinew, l0 oftFig.- ,'Al.f l Fig. ll 'aV fragmentary elevation ofthev isa section on line?, 2 offlPigxl.V

4Q valve actuating mechanism. e. a ,j Y )Y Fig. l2 is la similar View'fjvithparts y'in different positions. f .L LQ; 13'is a .section on line 18, 18 of..F.i: f.jl

. 2,-"on an enlarged scale. j x 45 14 a"fragmentaryelevationshows;

, ing'tli'e cuttingl blade andassociatetl'inecha 1 'nisn-i onhan enlargedscale.

ig. 'l5 is a fragmentary elci'fationslicw.- ing the cutting' bladev inv .di'ierenhposition#V 50 Fig. -16 -isafront eleyationofsame; Y

The iiiventioniincludes constant luniform dimensioirf tliepressiiig operas to leave aslight depression" vention alsofcomprises [method and means more clots simultanef improve?! Ysible to makeA brick that` alllliave the L y iI'itliem. .-'llhereis is aA section Von line 3, 370i: Fig.

: pendingon 'the accuracy .and temper of fthe :rj

. j prisei 'afin Appiicaiion iiiear'uly le, 192%. seiiaiiio. 122,492."

Fig. Fig. 17.

f Fig. 19 Fig'. 1"?. y, v

20. jis 'a fragmentary 'section cuttingblade'on an'enlargedscalely' i '.Fig. 2l is a View similar to Figlt', eficeptrr that cutting ofthe cutting blades. i p y i, v Fig. 22'is a yiew' similar to Fljwith.. cutting` `Wires substituted for a cutting ff' blade. Y'

Fig. .Q3-is a View` similar toF blade.y y.. j. Q4 is agsection on line '245, 24 "of,

Fig; 25 is au elevation' showing the Wire 70 tensioning" devioef showyihin lFig. i

enlargedv scale. 4

Fig. 26 is an enlarged.*Sectionfof'thecuts ting'yire aiidr-slickerblad throughout the severalfvieyvfs.'A y f As is .Wellknown inthe art,V itisnot pos-4 fefrepressilig 'either by" vby the stiff ,mud process.'

Similar numerals refer jtojsimila'r parts75 the softgmfud or always more or "less varia?.y

tion, which, .inthe usualniethodof repress-g 4 ing.-finake.I a. Variation"in theiliiclmess ofL g i ln themmanufacture ofire brickQitises-- $5. pecially desirable that the ,bricls'are uni-v v VotherY fdiinensionss Ilsually' vrepre'slsesfaref practically" uniform -pressLire;vto=all .theft bricks.l although there'is variation thiclniess 'tolfa'greater or less bricks as 'made before r-e'lpiessing..V In `ac'cordai'ice- With'j the present iriveiito n.5 a pfr ojecting panel is formedio'n the ,pp'eg :Thisf 'panel rfepr'e' flat face-ofitlieubricln sentis the. surplus material) in -theVV Clot from then shaved oli? leaving the l bricl Bricl; Arei'jress'es .now 'inrfcominonlllse: Coi'nf- 18 is section on line. of is, if section? .Oni iine 19,19 1 55,

Wiresare shown in ,iplace'v 69 ig; i5; with 65' a cutting substituted' for 'the "ciitiiiig` v f2 p y 1,630,436

fort-y to ftyfperf cent of the surface or face" of a brick oi standardv size. 1 l The machine is usually built toV repress two bricks vat a tim-c, so ythat the upper and klower plungers and the mold boxes aie l shown in duplicate. I Y

1 The upper plungers are mounted on'the l5, cross-head 80 which slidesiipand down vbetween suitable guides;l At cachendjo the; cross head is j'ournalled, as' at 3l, the upper ends or VVtwo connectingcrods 82. The lower ends of these connecting rods are journalled 20 to cranks 38, both cranks being on the same .Y shaft'see `Fig. 5. .c A The `lower plungersy' arejmounted onl the `cross head 36. The movement oit thiscross p "hea-d' is controlled byV the large Vcanif -25r mounted onr the crank shaft and directly lunder kthe lowerplunger 35 movement .being communicated from the' foam 37 to cross head v36 through theantifriction roller 38. The crank shaft 34 is provided with the gear wheels 39 .drijven by the pinions iOon sha-ital driven ybygpulley,,472-, y j The charging ldevice comprises the ira-'me 1 Q lhavingthe. tandemchargin'g Velements 44 V-andjfl This frame isroperated through the sliait`47. On shaft 47fisalso mounted the. :1r-m46 provided with the roller 48, op- Y.

erating in theclianiiel 49' of cam wheel 50g which is mounted .ontlicA crank shaft 34.l

filledwith suitable'oilfior voiliiig'the surfaces ofthe brick 'andthe-table on which'it slides. 'Pipes Y552, V from this 'tankare arranged to 4-5 drip oil vlon the roller to oigltbe top sur-f face Y or thebrickas lit is fed. by the Y charger, other pipes. Mare arranged tov drop fa small L amount of 'oil on the'part or thefreed table k5-5'over which the bricks slide.'v All of these 5e pipes Iaregcontrolledlrby suitable'valves as j shown; v This. o ilingl'system isin accordance Wwiththe usual practice. f

The Jframe elei'nent's'or portions 57 are con-` 'nectedV directlyftoV the cross head` (and `are .j given positive movement without, any relief g `sprinters,lthusv making Vthe brick to thickness,

y I. 'f i(iOf` except 'as tothe panel. YThe panel elements 56', areA rmounted'- on*the lpiston rods 58,' con-y .f

directed t'o'jpistonsf l.op(-'rating in' cylinders `the underside foifgpistons `59cvten i er; the'lpaneljelements elevated'againstthegpresfj Ten springs are shown.l The advantage oiV 1 connecting rods 43 by; varms 'a6r mount-ed onl springs.

t' the top of the press and heldin closed positiomjbythe Vspr ment of arm 75. A cani member) l l to the stationary tief frame ,51, cnxeja'gesihell vroller 76'to openfthe i-'alvejupon p redeter' The'cutti-iig or shavingdevice-orreniovf y Y lbe Veither .inthe ,torni oi Vafkni-fe'or a wire.`--ln to 10 and 114-. to I v 19,V Va vknife, is shown. These cifitting` knives;

60. The compression springs V.61. i-engagingi l'to maintain the frames :are Y lockedV ingp'osition ofy 'adj ust sure in cylindersGOl The engagement of they 'underside of pistons .59 with the cross headV 1 30 prevent the under face of the panel 4ele.'-

ments 56 from being forced below the sur-V rounding race of the frame elements 57 .y fl The `cylinders 60 are in communication withv eachother by means of the channel 62, see Fig. 4v, and are adaptedto'be brought into communication with cylinder Vmeans ofiV theipassage 64, controlled-by the otary cam actuatedvalve 65. There is an` other passage 66 between the cylinders '-60k and cylinder 63, whichy is controlled by the check valve 67, see lFigs. 2 and 13. Cylinder` 63' .is provided with ,the piston 68, which Yis controlled by a number of springs 69. These vsprings areset by means ',-oi the top plate 70 and bolts'l, with aten-sion to give Athe required pressure Vper square ,inch on the A panel plungers 56. #The cylindersandcom# l'municating' spaces arev illed withjadiquid sufiicient-in ouantit tomove )iston 68 u ,-7

'wardly against the pressure of springs 69,

preferably to provide a spacewbetweenv thel topof cylinder 63 and the underside 72,0 m y formation 73, which Ycarries the piston ,68. Thenumber of springs 69 pressing. downenV the upper piston `68 is not?` necessarily fixed.

However, when' theffaiiiountV of .liquid 'hef i105` The.; *Y valve member 165, has 'an arm Z5A vprovided .'1110 with the jrollerlr'' 6,.a-iidnormally controlied,y

a stop 78`llimi'ts thespringactuated min-ed movement of the ,'ci ssi-head 30.

The checkl valve 67 isgra ityactuated and Y permits the passage of iiiudiii one dire only, thatfis from cylinders; viofcy der 68. i

ing the fpanelt 'may lll i menthy means of mold-z hex 11T,

tionsSt and 85. This angle Yloeanir V83 is connected to the ends of levers 86 mounted on shaft 87, see 10.

cured the brackets 94 to which arevpivotally Y meunted,` as at 95, the Vcani 96 carrying' the chip or sharingcatchers 97. iscontrolled by spring 98 and is operated into the discharging- :positionagainst spring' tension, bythe roller 99 on lever or arinfli of the charging mechanism. The plate or 'shield 100acts as a stop for catcher 9T and also preventsthe discharge. ef the chipV or shaving 101 4until the catcher 97 is tilted into the discharging positioinas shown in Fig. 14. 'The roller 99is ed in slet 102.01? arm` 116. p f

The shaving knife 80 isbeveled on its underside, as at 103L-See Fig. 30, for slickiney the top ofthe bri`ck,`a-fter the shaving; is removed, in orderto prevent gor'sinooth Vvout any "particles raised'abovethe surface of the brick by the action of the shaving` blade. In case a cutting Wireis. used, a similar slicker device 104 80 to'convey-the.chip-.or shaving 101 tok the Vchip catcher 97. 'p Y In Figs. 21 to 26 inclusive, a construction is shown similar to that shoivnin Figs. 14

to 20 inclusive, eXceptthat a cutting' Wire is tension .thumb screw 113,engaging the lun'.

1121, forsecuring' the proper 'tension of Vthe Wire, seeFic'.

'shaving 101 to' the chip catcher 97.V Iuoperation:

. Th'e'lhric'l Vclots,indicated as are 7fed by hand onto the table i. pushingxtliem'into;l position over ltheV lower plunger 35,'ivh1ch at' tlietep ,surfaceV of the mold bemand fthe" surface of Atable ABefore the reach their 'final'Y position on plung'ers vii th with clots Bhhov'e-ver, tl'ieplungers have v'been Aluwered .slightly so that. the. rearfjvall of the the slot. and holtl cro`iiiiec-y H Shaft 87 carrieslever 88 having the roller 89 which cooperadjustably inount'- ,has been llowered for the is shownin FigxrQG. A'. vslide plate lllisprovided back of the blade "than-the' 4marred-*by thecutting blade@l "I'he'vhlade I eut, the panel flushwith,

a yoke or frame. 0i'` ,of the wir@V 1s- The Wire. is.

'canr 90- 'as alread secured to .Sehens thefpo'sition.ofthe cu y i y fbrick o'n a vertical'line below@theV A slide plate 115 is pro-v vided back oftheV Wiret'o convey the chip or "in'gfront of `the- Vcharger` elementltt; thisj charger 'element the. beginning of 'this'. f

voperation is inthe elevated"positionlinV the and-its top surfacellush inold'bei YWill act-ias a' stopjtoprevent the Vclots freni sliding-past the vmargin of the inrposition upon the-.lower plungers above describec.. "The initial position of the clots a on thetahlem is shovvnlin'FigaG. f 'Ehe final position of, theelot-on plunger 351 ready for *pressing i is shown in Fig. '8.' SQP After the 'clots have been pressed, they arecarried up by the lower' plunger 35 to level of lthe 'top of the mold'boX'asshmvn, as, Z), in Fig. 0. Then the charger.. iframe 'moves foruf'ard, the element @t5 pushes` the bricks off the plungers 35 along the top surface 118 off the mold box 117 so that the panel 119 of f the brick will engage the knife 80, which4- purpose,as shown in Fig. 7. ."lt should he noted however that ',510 thejknife "iselevateduntil. the head of the brick has passed beneath it; it is then-'loiny ered te engage thepanel 119, and after-Cuty i ting' through thenpauel. isagfain elevated to clear the surface of tliebrick at' thetail end 0 thereof. vrthe ividth Vof thehladejis slightly greater than that ofthe panel, hutfnai'rowei" tcp surfaceof 'the brick, so that the:v

top surface' of the'brickjis'not cngagedvor depressed so jas-to or slightly .below vthe surrounding surfac( of the brick-topproducef a face that e 1l nm` .interfere- With stackingv or laying.)` the lfn'icksll This. operation of the blade orknife Ais fse im cured-hy theitorni ol the depressionyQl of y 'described The .adjustL ment Yo1" this .depression is. secured by the slotted Iclen'ient?12.0, shown infgF' A. 101 .Fig' l l lladc after itfhus :completed .the *ci flthe panel. l It will henoted .that the sur le ofthe inoldibox is'erlztended 'to project-beneath thej*` pointjef. engagement ofthe cutting' -edgze of` theblafle Ve0 in-order .to siippert the brickduringfthe" cutting peration.. j From Ythe surface 118* the vbrick'"passes onto the .olf-bearing 'belt- 121;V '.Theshaving erichip- .101 i'izissesaheve the',` iii'e onto vthe chin catcher.V 97y as shown? iii/Figs, .Sand,9,.2`1'After vthehricks have'. passed heneatlithechip catcher 9,7,the cli., 101 ie catcher,.9?ontothe y t c 'efdun'iped by' helt' 121 .behind 'tlief brick. j

ange isjniovedlza i sliliioientlyv nts/lil and/.l5 ivil 'clear tli-eupperff The eliargzler.r

that-'elei e fi'aine ,remains In? this 'position-'yvlii-le 'th per .-'Pluneell f. rese' the nbrwk am .suleient '-lieiglit to Vis to Vdirchargige the nient tou'ar :the raise-d1 .position 122 elements. 56' are vzhich in turn .are connected to pistons `r operating Jin cylinder tol apply pressure in Fig. S. These operations of thechargei' 'traine are secured by the cani 50 and associated niechanisni above described.

The chief function otfthe lower plungers bricks troni the inold boX ai'ter they'hare been presser` .y `rl hey do hoivever have a slight upu'ar d the end oi the downward'presstthe upper rplungers inV order to both surtaces oit the rlChis is secured by iiignioveinent Ve bricks atfthe saine time.

cani 3?',see y1g.A Q.

The "control inechanisin The-two cylinders 60, one tor each plunger elenient 56, and they cylinder 63, are all rigidly mounted on the cross-head llt).r The secured to piston rods 58, 59

operating in cylinders (SO. Vrl`he pistonGS 63 'is connected to the Y, lhousing or` element 73, having the'tlange T3 against vwhich the lower ,ends ot springs 69 engage. The upperrends o'l' these springs engage the cap plate 7 heldin position by n' although one clot inafy` thansthe otheig panel material inents. f That is.

thefbolts 'Yilfthreading into the cross-head 3 the desired tension of are maintained `in coinnuinication by ineans' i otthechannel 62,50 that .the pressure in cylinders-@will al'uaysbe equal.VV This insures the saine pressure' on both brick clots I have niore material provided both clots contain enough inaterial to illthe niold box Vcoinpletely. Y v f "li/Then. the cross-head 30 descends the.r ess the [clots against l lunger eleinents 57 f pr Y the loujer `plnngersv rhis brings theniar- .gins' ot' the *faces tov exact size. The surplus forces rtheupanel i pistons 59 Whichjl'orces liquid 60 past fcheck lvalve 67 into cylinder 63 against the 'pressureot springs 69' actin-g on pistonfGS. lVhen`V heady 30 j ascende, Y

elements ot' the plungers-Ilitt -siinulf' the surrounding traine ele? tane'ously `with the ditiere'nce 'A in are Well clear r' NOtherwise thefpanel element `would v flatten l' the brick. Y

,Y taken ofi" the plungers #prevents vthe liquid cylinder 63 back f n p perinitl the eleinent to nieve backV over the inold Vbok into initialv d or pressing niove' on the tace of the' y tor the* panel elenient .56, is mounted on theeross-head V30.-

O.V `when in pressure l'Contact 'with t? Yunder vthe shaver,

y plungers upwardly. This results in aV corresponding Vupward' fnieveinent` of Vtroni 'cylinders the cross-v it visrilnpo'rtant that' the' n :the two... levels n'jiust be inaintained until theplungers y Yoit-fthe ibrick*l turning: freni 59 up against head '30 reaches apoint vWhere -t-he cani 79 engages roller 76 to open valve 5,]\vliereY sure or springs panel plun-g-ers down luntil their areitlush with the surroundingv `'lawine elenients 5T.' Y The operation ot' the press isshown pro gressiv'ely in Figs. e to 10inclusive.

ln Fig. t5 the brick or clot o hasjust been slid in iront of the charger elenient eil from the posi Y clined plate 124 z this partjot' the operation is done byhand.4 Brick 'D has'been pressed and raised by the louer. plunger to a position in iront ot the Achanger eleinentfl. andiready to be delivered by it; The:,upperI plunger 35 lower faces ready to descend. Brickc the shaver and is traveling lace of the tionf shown in dotted lines on thein.

,ugonv the liquid in cylinderwGB underpres- .69 i'n'ln'i'ediately `forces' the belt ready to be takenl ofi "byfhand.. The

lchip catcher has dumped the chip of the raised panel; this is'also beingcarried .away

Aby the ol'lfbearing belt.v

ln Fig.

into position on they lower plunger, While under and in contact wlneh'gputs a iihn ofA to prevent of the upper passing roll 52:3,

surface of theclot sticking` to the' tace he: clot. Brick 7) is being pushed. the chip or slab lOlxpassing over'the top ot the blade 80." During this. operati-onthe .theuili'per surface Y is extendedr .here forv this purpose. vis advanced somewhat 'further w bearing belt. In this ,'Fig. 7, plungerY 'has'desc'ended part `Way, While the lower plunger hasY remained stationary.

ln .8, the charger has pushed-.the bri-ck.: or. clot a 1entirelyf'upon the V`lower plunger. The lower plunger i A descend i ust previous to; this, ot the rear` Wall-foi the Vstop to prevent the clotftronisslipping to l lar, andato. assure `vitsAstoppii'rg vhenY charger stops.

rapidly vli'oin 'thisp'oint, with :plunger following. Brick ZJ yhas' pushed as farA asthe Yeli-anger so* that axpart the :upper alsok been new t'ree to" beicarried .arvayon theott-bearing belt. fBrick c -von`the olibearingy y Y n .now ino've Ybackslightly` to shown inrso thatlthe 'upper pl Will clear-it.-

fFig.. 9. shows box, with Vthe traineV element K torced toa predeterminedifpostion,

brick pressedfin the Araised panel torined.

With .an oiling oilonj-the top .A material troni.

plunger 9 brick is Alirn'ily and accurately supported by" 118 of the inoldboxwhichv Y'Brick c ith vtheA oli-f the .upper ihas .started'to is still'i'arther advanced Ybelt-.1v The chargerawillf theV position ingers-1` ineld box will torni. a

, the a rthe lowerf plunger v`descends .element l5 will' l Y pushV it. vThe'panel is entirely-shaved o il Y Vand the' shaving blader and chip catcher have been elevatefd'to' clear the-brick ,thefbrickV isV inioldl frlihe of the 4.upper plun.gerfhasQbeenkv Y V akingy 7 brick or elot'a is V,being'pushed 90. A

.niannei-.as to bringl the brick,V as to itsV outer margins, exactly the desired thicknessrthe panelffel'ementof the plunger has been raised, against the spring pressure suiiiciently to accommodate the surplus material,,meantime bricks?) and chave advanced on the oitbearing belt. j v

In Fig, i0-, the upper plunger is'ascending With the panel element thereot' still elevated above the surrounding jt'raine elen'ient. At af given point in this Vascent the Valve between cylinders o() and cylinder is opened and panel element described.- I The charger nouv` goes back,V plunger thenl pushes the brick up tlietop oi the mold box ready to be pushed ott by the charger as shown in Fig. 6.

Fig.l 10 shows the cam 50 that operates the charger and also cam 90 that raises and lowers the cutting blade or cuttingfivire. This figure also shows the positionv of the crank 33` that operates the 'upperplungers The machine illustrated in` the drawings is what is called Va double repi1ess,piessiiig twostandard bricks atene pressure. How-- is forced downas already ever, for larger bloclgsingle mold boxes andk v I j plus inaterialjto project Vabove the surroundplungersl ai'e`used pressing one at a stroke.`

The brick has itssides. ends, bottom and a substantial margin of the top faceprcssed into` exact dimension; surplusinaterial beM ing pressed into a entire brickand panel is however subjected to substantially predetermined pressure,

during the .entire pressing operationij 1 Y ,WhatI claim is 4l. The method of repressing bricksgwhicli consists in applyinglpressure thereto in such,

manner as to bring all the faces of the brick into exact dimension, 'except one face, with respect to which themargin is brought into exact dimension, lwhile' surplus material is permitted to project beyond-,the plane of said margin. .V v 2. The method of'repressing bricks, which pressure thereto in such manner as to bring all the faces of the brick into exact dimension. except Aone face, with respect to which the -marginis brought into exact dimension, While surplus material is permitted to project beyondvthecplane of. g, said project-j said margin, and maintainin ing` portion under a substantially predetermined. pressure during lthe entire pressing operation. 'Y Y e 3; The method ofV repressing bricks,piirhichl pressure thereto in such consists in apply-ino' ball the faces oi" the'brick vinto exact dimension, .except oneface, With respect to which th'emargin isbrought into exact dimension, .While surplus material `is permitted to project beyond the'plane of said margin, and'then vremoving said pro-V jecting portion. j Y j Y 4. vThe method of repressing bricks, which consists Vin applying' pressure thereto in such Q ysaid projecting th e lower iiushy with the .projecting I consists in "applying projecting point. Thel consists in applying material to. project brick. i f 9. rlhe method'ofrepressing bricks, 'whichA tacesof the of oneV tace,

'bringing all the facesiot.'

manneras to bring its sides, ends, kbottom exact kdimension While permitting surplus material" to project Vabove the surrounding margin ot said top -t`ace,-landmaintaining portionundera substantially predetermined pressure during the en-` tire pressing operation andthen removing.; ksaid .projecting portion lso as tobiing.y the entire topv face of the brickintosubstantiallyoneplane.v j, y l 5l VThe method `ojlrepressin'g bricks, which consists in applying pressurethereto in suoli manner as and a'substantial margin of'its top tace'i'nto exact dimension While permitting; surplus material tok projectl above the ,surrounding marginof said top tace anduthen shaving portion in a plane corresponding substantiallywitli said surround-` Y ing margin.

6. The method ,of-.repressing bricks, which manneras to bring and asubstantial margin of its top'ace into exact dimension While permitting sur4 to bringits sides,ends,bottonik I t so j pressure theretoA in such` v4its sides, ends, bottom ing margin o'sajid top face-and maintaining a yielding pressure onsaid projecting portion during the entire pressing operation.

7. The method o i'' repressing bricks, .which manner aszto bring and` a substantial margin of its top face into exact. dimension j While permitting surplus above the` surrounding margin of saidfto'p face* and maintaining sai e pressure during the en tire pressing operation, and lrelieving' the pressure upon the. proj eeting `portion ,and upon the' linainbody `of the neously. v v 1 j 8; The method of repressing consists in bringing all the. brick, exceptthe middle part into exact. Y

bricks, whichl vfaces ot'fthe` otgone face, dimension, and permitting saidmiddle partl to project above the face tothev extent Yrequiredfby surplus material sin' the consists, in bringing vfall* the brick, except Vthe -middle part into exact dimension, permitting 'said middle part to yproject above the faceto the extent required'by surplus material in thefbrick, and maintaining' all parts of the brickkunder pressure thereto in vsuchy its sides, ends," bottom l dl projecting. portion under y, a fsubstantially predetermined 105',

brick simulta-1 pressure during'the.entliejrepressing oper;

tion. 10..',l`he method. of .repressing a 4plurality of bricks simultaneously,

themiddlepart of one face ofv eaclibrick,y into exact dimension, and permitting ,said-l middle part toproject above lsaid face tothe which consists in i `each, brick, except elements kand j operating mechanism kassoci-v n Operation.

extent required by surplus material in the brick, and maintaining all the bricks under the same pressure during the entire repress- .j

ing operation. Y l

l1. ln a brickrepressing machine, the

combination of a mold element, and plungerVY ated and operating to bring all'faces 'ofthe brick into exactl dimension except the middle part lof one face and to permit said middle party to project above said face to tlieextent required by surplus material in the*v brick. 12. ln a brick repressingY machine, the combination of a mold' element and plunger elements and operating mechanism, associ-v ated andoperating to bring all. faces of the v brick into exact dimension except the middle part of one face and to permitlsai'd middle part to' project above said face to the extent required'by surplus material in the brick,

- and meansfor maintaining asubstantially constant pressure upon saidj middle part l.during t-lie rentire repressing operation.

13.In a brick repressing machine, the

combinationvof a in old'fbox kand plunger elements and operating mechanism associated and operating to'bring allfaces of thejbrick into exact dimension except the' middle'part y of' one face andzto permit said midlle part to Y project above said face to the extent required by surplus material in the brick, rand means j for maintaining ya yielding` pressure upon said middle part during the entire repressing 14.- In a brick iepressingV machine, the combination of a mold box andplunger elementsr and operating mechanism associated and operating'to bring all faces of the brick into exact dimension except the middle part of one face and to permit said middle part to project against yielding pressure above said face toltlie extentrequired by surplus material in thebrick. y Y,

15. In af brick' repressing machine, Vthe combination of a mold box and'plungergelements and operating mechanism associated and operating to bring all facesof'the brick into exact dimension except'the middle part of one face and to permitsaid Vmiddle part to project above said face tothe' extent re-v quired by surplus material in thel bricl ,and

of one face and to permit said middle part i' i to project above said face to the extent requiredby surplus material in thebrick, and

means for removing said middle part and vfor smoothing said face. i -17. In av brick repressing machine, the

combination of a mold boxandplunger elements and operating mechanism associated brick iepressing machine, the- Ameans for removing said middle part to ap*` pro'xiinately the plane of Ythe 'surround-ing margin.

18.V Ina brick repressing machina'. thel vcombination of a mold box and plunger ele-- ments and operating Vmechanism associatec and operating to bring all faces of the brickj into exact dimension except the middle part of 'one face and to permit said vmiddle `part to kproject above said face to the extent'required by surplus material in the brick, and Vmeans for'ren'ioving saidmiddlepart,'so as to 'leave a surface Within the margin of said rface slightly below the planeof said margin.

19.1na brick repressing machine, the combination of plurality of mold boxes, cooperating plunger elements operating mechanism associated and' operating to. bring Vall the faces of a plurality of bricks into Vexact dimension exceptk the-'middle part of one face of each brick and to permit said middle part to projectfab'ove said face to the extentrequired b surplusniaterial in the brick,1andmeans for exerting'an erljualized pressure on all the bricks .during the entire` Yl'cpressing operation'. Y .l n

20, In a vbrickA repressingmachine, the

combination lof a mold box and oppositely v actingv pl'ungers, posite, lcomprising a panel element and: a surrounding frame element, means-fon operating the frame element and the oppositelyA one plunger being 'com-i i acting plunger` with definite strokes, andr` means for operating the panel eleine'iit,coni

prising acylinder,` a piston operating there` in, and means forsupplying fluid under pressure'to said cylinder. Y i

21. ln a brick repressing machine, 'the combination of av plurality 'of mold boxes and cooperating oppositely acting'plungers, one of each pair of cooperating plungers being composite, comprising a panel element and a surrounding frame element, means ,for

operating `the frame element andthe oppositely acting plunger with delinitefstrokes and `means ,for operating the several'panel elements with an equalized. yielding ',pies` sure. y Y K 22.111.' a `brick repressing in'acliine,Y the combination ofa plurality of moldboxes andccoperating oppositely acting plungers',` one of each pair'of cooperating plungers being; composite, comprising a ypanel element and a' surrounding .frame leiement, means for operating the :traine .element and the oppositely acting VV.plunger ,with definite strokesv and means, comprisingcommunicat-` ing cylinders, pistonsoperating therein and means for supplying vfluid underl pressurer to said cylinders, lfor operating the several. 1

Hl i

einem pressure. V i L repressing machine,r the combination ofa mold boX, oppositely acting` plungers cooperating tl'ie'reiif'ith, one plunger being composite coniprising a paiiel'elemeiit and a surrounding frame element, means 'or operating the frame, element and the `opposite Iplunger Witlildetinitestrokes, and means o'roperating the panel element with ayieldf ing pressure stroke, comprising a fluid coiitaining cylinder, a pistonioperating` therein, a secon dv tluid containing cylin der communi-A cating 4with lthe lirst cylinder, a piston op-" 'eratingthereim ,and i'iieans movingv With ythe a plurality ot frame elenientfconnected by springsto actuate'the last mentioned piston for forcing liquid to the'lirst mentioned cylinder. ,i v i 24.1na" brick repressing combinationV ola mold box, oppositely acting pluiigerscooperating tlieren'itli, one plunger' being compositey comprisingv a lpanel element and a surrounding fra-me elemenhineans toi' operating the vframe element and lthe opposite j plunger with definite strokes, and means for for forcing operating the panel element with a yielding pressure stroke, coinprisinga liu-id contain` ing cylinder,'a piston operating' therein, a

secondV .fluid containing. cylinder communicating,Witlrthe first cylinder, a piston op lerating therein, `means moving with the frame element `connected by a plurality of springs to actuate the last mentioned piston liquid to the -tirst mentioned cyl-- inder, and vvalves orcontrolling the flow ot liquid from one cylinder' to the other.

25. In a brick repressing combination ot' a mold box, plungers cooperating therewith, one'plunger being composite comprising a panel element and a surrounding"frame element, means l'or operating the frame element and the opposite plunger With definite'strokes, means` for operating the panel element with a yielding pressure stroke, comprising a fluid containing cylinder, a piston operating therein, A`a second fluid containing cylindercommuni# eating with the irst cylinder, a piston operating therein and means moving With the frame element connected bya pluralityv of springs to actuate the last mentioned piston toijt'orciiig liquid to the first mentioned cylinder, and means for adjusting the initial tengion'oi the springs. i 'v 26. In a brick Yrepressing machine,thc

combination ofa mold box, oppositely acting plungers cooperating` therewith, mech ani sin associated op eratin g i mension, except the middle part of oneV face and to permit said middle part to jbrick, andV aY Acharging device f fork keriiig Ta .clot to machine, e the j' and to permit vsaid middle- Vmachine, the oppositely acting .to the means and operating to bringall the 'faces ot the brick to exact di-V,r

4 simultanef ously vdelivering a clot ,to the 'moldboir `and formoving ai repressed bricktotcooperate with the seiferingmeans.. v k- :2 n a! brick repressing'inacliine,v the i'oiiiliination cfa meld box, opposit'ely acting plungers cooperating` therewith, operating mechanism associated and all the faces of the .brick lto exact Adimension, except the middle part ot one face, 'andato pei-init saidniiddle part to project above;` said face to the-extent required by` surplus material `in the: brick, Amean.)4 for severing saidvn'iiddle `project-ing part from the brick', a charging Vdevice-tor simultaneously. delivthe moldA box. and. for4 moving a repressed brick 'lo cooperate with the-severing means, and f ii'ieaiistorV diverting the severed part. v; f'

'operating to bring ln a bi 'ai 'repressing machine, y coiiil'iination ol a mold box, oppositcl` niet inf" ng all the facesV iiiensioii, except the iiiitldle part olione `itace i ,to thepentcnt surplus ii'iateiia'l in the i brick, y eener-ing said iniildle proyecting4 part Lfr'oin and siiioothingtlie face oif'the l'iriclniifcliarg- 1 ling plungers cooperating thereWit-lnl.oberat- ,Y Y

mechanism associated and: operating to,k f

oi-'tliebrickto exactjdi-- f f partto project.-` requiied by y means.. for

ing device lor simultaneously,deliveriiigra clot tothe moldfboX` and for inovinga re, pressed brick and smoothing means. y Y Y Y 29.7Iii a' brick repressing machine, lthe coii'ibinat-ion of a plurality otinold. boxes,a

to cooperate with the,severing` plurality ot pairs ot' cooperating oppositelyrv acting plungers,one of each pair'of plungers being composite, comprising a p'anelpeleinent and surrounding traine element, means for operating the Vtrame elements and opposite plungers lWith delinite strokes, means Vfor oper-ating the panel elements comprising' communicating fluid l containing cylinders, pistons operating therein, means connecting the fluid containing cylinder adaptedV to `4rc om` miinicate'nfith'the first mentioned cylinders,

a pistn vroperatingtherein, a spring sup porting element? connected to said` plurality of springs having-their lower ends engaging said elen'ie'nha top the upper ends oifsaid springs means .forming Vapassage having a checky Valve forgpermitting iloivffroin the iii-st men-` tioned cylinders to the common cylinder,A

n'ieaiis'iforniing a 'second passagexbetw'een the first mentioned cylinders tothe common cylinder, a Valve forcontrolliilgsaid passage and means operated by moving parts of the machine, for controlling said valve.'V

piston, a

11o Y pistons "to the panel eleineiits,"a common platejengaging y and 'connectedI actuating the frame elements, t

30. In a brick repressing'machine,` thevr combination ot a plurality of mold boxes, a I plurality of pairs'ol" cooperating oppositely" aetingplungers, onefof each pair o' plnngersv being composite2 comprising a Ypanel element and surrounding frame element, means ier operating the frame elements and opposite plnngers vwith definite "strokes, meansvor operating` the panel elements Comprising eennnnnieating Huid containing` cylinders, "Jistons oneratin `therein means v l. D 7

connecting fthe vpistons to the `panel elements, a common cylinder,

. springs for pressing the pistoni vfluid containing cylinder adapted to communicatewitli `the first mentioned cylinders,

a piston operating'tlierein, a sprin` supporting element connected Vtosaid piston, a plu sagre, meansV operated by moving; parts et Vthe machine 'or controlling Vsaid valve, and

` against the the irstfmentloned cylinliquid lpressure in ders.' I

`3l. In a brick r'epressing machine, the `combination of a vplnralqf or' ino-ld boxes, a

plinality of pairs of' cooperating oppositely acting plungers, one of eaeli pair ofplnngers being` composite, com rising' a panelfgelenient Vand a; surounc ingfft'rame element,

means for operadfingl the frame elements and opposite plnngers with means for operating the panelelementseomprising Communicating vconnectingl tlie pistons to the panel elements, a'eonnnon iu'd containing 'cylinder adapted definite, strokes,

fluid*A containing` -tyl1nders, pistons operating -vtherenn' means Y to communicate with the flirst .mentioned l vcylinders, a pistonv A'operating therein, a

spring supporting element'eonneeted to said piston7 Va plurality ofsprings lhaving their lowerfends engaging said element, aA top plate eng-aging the upper fends offsad springs and connected to tliemeans actuating` the 'trame elements, means forming a passage liaving aj cheek valve 'for' permitting flow 'from the first. mentioned eylndersfto the Common cylmder7 means vormlng a seeond passage between the first mentioned" Cylinders tov the v`common cylinder, a Valve for "Controlling `said passage, means operated by nimfingl pertsiolt the machine for controlling saidV valve andrmeans for limiting the downi'rard movement of the .panel ele? ments. V e Y, .1

HOWARD l., KING.

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