US1857671A - Method of and means for manufacturing bricks - Google Patents

Description

May 10, 1932iv A. J. THERRIEN 1,857,671

METHOD OF AND MEANS FR- MANUFACTURING BRIcKs Original FiledV May 28, 1928 3 Sheets-Sheet 1 .May 10, 1932- A. J. THERRIEN `1,857,671

METHOD OF AND MEANS FOR MANUFACTURING BRICKS original' Filed May 28, 1928 -3 sheets-sheet 2 oooo oooo May 10, 1932. A. J. THERRIEN v 1,857,671

METHOD of' AND MEANS FOR MANUFACTURING BRICKS Original Filed May 28, 1928 3 Sheets-$11661'I 3 /dl/hm mx m m m/L-MZ/ Patented May 10, 1932 ARTHUR J. THERRIEN, or nonrrrisaoox, rumors, Assienoit 'roirui'iiioivieir;` 13310K- 'Aralar Orf-Fics COMPANY, `or" oraoaeo, 'rLLiNors A GORPORATION'DF'ILLINois METHOD OF AND MEANS FOR MANFACTRING BRIGKS original @replication fusa Mayas, 192s, serial No. 281,018.V Patent N0. 1,773,827, dated Agigust'as;v 1930.

Divided this application led May 18, 1929. Serial 'I-To; 364,021.A 1 Y This application is a division of my .pending application SerialNo. 281,018, filed May 28, 1928, now patent No. 1,773,827 August es, 1930. Y

The present invention relates to the manu` facture of brick, and more particularly to the means for receiving unit piles of'bricks and for guidingformation of the piles to the Y end that one orV more transverse arches may be formed in the -unit piles; the specific device isrshown as a transfer or drying fcar, the invention is not to be limited to that specific embodiment. .i

In hacking the bricks onto the cars, known as transfer or drying cars,as disclosed in my priorV application, certain difficulties were encountered in alining the. bricks to form the arches, and this difficulty I overcome, by providing guides for defining the arches,

" these guides, however, being so ,designedas not to interfere with the use` of the automatic lifting forks employed for lifting and transporting unit piles of bricks..

These guides are ,also designedto prevent the ngers of the lifting fork from becoming caught when the tines of the fork areV in-V serted into the openings left in the bottom of the unit pile for that purpose. Y

The guides are preferably mounted upon base plates 'shiftable laterally on the car for the purpose of'permitting better accessofthe hot gases in the drying oven or dryer, the plates with their snperposed piles of brick being moved together to form a unitary pile at the time that the fork is to be inserted. i

When the piles have passed through the dryer and been consolidated and taken up by the fork, they are then placed inV position in the kiln, and the kiln is built up with arches of green brick of a single brick-length in width extending from side'` to side of the kiln. The kiln- ,is scovedin anyv preferred manner, as for example, by smearingover the surface along the ,sides andA ends Va mixture of brick dust and water,or brick dust clay and water, burners Vare inserted at each-end of each arch and burning `is .then begun.,

Preferably, but not necessarily dogfhouses or small tubular extensions( of the`arches formed of burned'bricks are employedsoas burners. i

andsatisfactory and results -in lessl slaggingr tion.

to,bringthe refrom the burner nozzles Vout I nearer to the outside surface ofthe kiln.`

Obviously, removable scoving havingl suitable restricted openings for communicating with the ends of the arches may be employed 1f` desired. `Firing fis carried `on from'l each endY of the arches, and the object ofthe firing is,"of course, to burn thegbricks, `and this is Y accomplished most eifectively by fllingthe arches from end to end with Vlire. from the Due to the relatively large ratiofofvescape openings between bricks tothe 4volume defined bythe arch, the burning is much more rapid -ploy'ing-,the same, there are certain features of my invention which may be employedin the manufacture of brick regardless of the-kind of lkiln employed. The kiln, its method of formation and burning are disclosedvin my prior copeii'ding Patents Nos.. 1,757,786 and 1,790,882. e

Now in order to acquaint those skilled in y vso the art with the manner of constructing and operating a device embodyingv inyinvention and practicingmy process, I shall describe in connection with the accompanying drawi ings a typical layout including the dryer car,

In the drawings Y i if Y Fig. l is aside elevational view vof'a dryer or transfer car embodying my invention.

Fig. 2 is a plan view of the saine; y 7 Fig. 3 is a cross sectional view taken on theline3--3ofFig.2."'V A i y thereupon.

l Y i 95 Fig. 5 is a side elevational View of the liftL takenon the line66 ofFigj andsho'wing JOU the kiln and the intermediate apparatus. Y .8,5

vFigjl is a perspectiveview of one of the i :base plateswith a' spring guardA or guide kiwi' some of the pickup bricks between the tine of the fork.

Fig. 7 is a top plan view of a kiln with certain of the layers removed to show the manner of building the same, and showing the burners in position.

Fig. 8 is a top plan View of a fragmentary part of the kiln, showing Vthe manner o f closing 'up' the arches between unit piles, as is performed in the center'of the kiln shown in Fig. 9 is a section through a part of the kiln illustrating diagrammatically the manner of making upthe kiln; and

Fig. l0 is a plan view of a modified or alternative methodl of mak-ing up the arches from solid unit lpiles of brick. i

f According to a well known methodof making the* green brick, Vthe clay is takenfrom the pit, tempered, pugged and' squirted through adie of single or multiple form onto a cutting tablewhere the longitudinally extrudingstream Yof clayv is cut into brick lengths.A Froniv thence the green bricks go onto' a hacking table,which is generally a belt traveling at a rate of speed greater than the rate ofsp'eedV at which the clay is extruded from'the brickl machine, so that the bricks will be-v separated from each other a short space as they come to the men who take the bricks Yfrom the hacking table and pile them upon the transfer or dryer car. Azsuitable track for the dryer cars runs alongside'the hacking-table, and' in Figs. 1, 2 and 3 Ihave shown one offithe dryer cars of my invention such'as isemployed for formingunit piles of brick for making upv 'the bottom layers of the kiln. x f

The car 1 is adapted to run onrails 2 mounted'upon suitable ties or other supports Y suchasf forming a track. The car 1 coinprises -a bottom frame-4 having bearing "brackets 5 forV mounting the axles 6, 6v upon which arey secured' flanged wheels' 7, 7 guided upon'v the vrails 2, 2. I

The ,frame 4 is preferably made of longitudinal'and transverse channel bars .forV :ling

' to the stakes or posts 8, 8 at each end and dis-i CTI v GG

the side 'andend sills and bolsters respectively. Atthe corners there are mounted upright posts or-stakes'8, 81preferably-made of angle iron having cross bars or plates 9, 9 secured posed atv elevation which will bring them tiers the end faces ofxthe brick may abut againstsaidplates 9, 9.v The'inside or facing surfaces ofythegplates 9, 9 aresmooth so that the unit piles maybe pushed together, or consolidatedwithout difficulty.

Shortldiagonal braces 11, 11 at the corners brace the ends ofthe car, vWhichafre thus formed byzthestakes 8.and the crossplates 9, to' the,v side sills of theeframe 4. Y

A series of T-bars, 12,113, 14 and 15' are yconnected between the side sills of the frame 4, these T-bars having their ends riveted to the upper flanges of the angles of the sills,

as indicated at 16 and 17 in Fig. 3, the headr tion serve as guides or Ways upon which are mounted a series of inverted channel bars 18, 1 9, 20 and 21. The channel bars have down- .wardly extending flanges, 'and the flanges are notched as indicated at 22, 22 so as to be guided on the upwardly extending flanges of the TLbars. Y

The channelbars 18,' 19, 20 and' 21 have their webs perforated bya series of holes 23 for Jthe purpose of permitting hot-gases toV rise therethrough for drying the bricks mounted* upon the same. Preferably these holes are placedbetween the groupsof pickup bricks, as will be apparent from a comparison. n

of Figs; 1'-l andv 4. Y

Each one'of the inverted'channels 18,19, and 21 has two guides 241 and 25.. formed ofl relatively thin spring metal and ofv substantially the same width as the channel'secured thereupon; These guides24 and r 25 comprise* a foot'member 26'bent at right an'- gles to the main body ofthe guide for clamping as by means of bolts to the top of the corresponding channel. At their upper ends` the guides 24-'an'd 2 5 have an integral horizonL tal-portion 27,'r then a vertical portion 28 and a short horizontal portion 29, may be'seen from Figs.1 and 4. Thehorizontal portion 27 is of a rlength approximately one-third brick-length. The'vertical portion 28 has a heightof approximatelyone vbrickwi'dth and the upper Ashort horizontal: portion has a length preferably slightly less than the thickness o f a brick.. These dimensions'inay'vary slightly, but should yconform fairly closely for 'best results. Y n

The guides 24'and 25; on each channel are placed backto back and vdefine-1between theni a pier which separates :one arch 30 from the other arch 31. VThe chan- nels 18, 19, 2O and 2 1 are of a widthv substantially equal to one brick-length, and likewisethe guides 24and 25 are `of width substantially equal to.` one brick-length; 3

When the carV is prepared for hacking bricks thereupon the Ychan-nels or base' plates 18, 19, 2O and '21. are preferablyy arranged shown in Fig. thatis, the plates -18 and 19 substantiallyV in -contact' andthe plates or channels 20 and21 substantially in Contact,

arated by Aa space fwhichis approximately equalto two inches: If desired', the plates or', channels. may lall be `spaced substantially equidist-ant, but placing the base plates 'or Y Zontally, nine brick-width high and ten brick-- length long. It really consists of rfour piles closely grouped together, but these four piles after the car passes through `the dryer are closely pushed together as by means of a crow-V bar applied to the outer one of a pair of the base plates such `as20 and 21 to push the base plates all closely together so that -thefour pileson the four base plates are all inV contact and are more easily handled bythe fork shown in Fig. 5.V

In piling the bricks onto the cars shown `in Fig. 1 eleven groups of pickup brick are first set in fours `and in alinement on each of the channel bar base plates. Thespaces such as 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42 and 43, between adjacent groups of pickup bricks or immediately outside of them are adapted to receive the tines such as 44 ofthe fork 45. The fork 45 is a well known device employed for this purpose, and in the f practice of my invention in connection with the unit pile shown in Fig. 1 I employ a fourteen-tined fork.

It will be observed that between the unit groups 46 and 47 and their corresponding guides 24 and 25 no pickup bricks are included, but that is not necessary. The reason whyithey arenotnecessary is simply that there are no bricks above them to be supported by such pickup bricks, andthe guides 24 and 25 may, therefore, be placed between adjacent tines of the fork." ltwill be observed that the foot member 26 is preferably of a length approximately equalv to twice the thickness of a" brick so'that these guides will not in any-wise interfere with thejintroductionA of the tines of the fork into the spaces between pickup bricks.

VIt will also be observed that ofthe groups 46 and 47 the two innermost bricks of the tines since the tines 44,44 have upon them a Y groups have nothing resting upon them and therefore are not essential tosupporting the unit pile of brick above them. They are useful, however, to fill up the space between the series of laterally `moving gripping fingers 50 which are projected. laterally whenv the weight of the unit pile comes upon the tines 44 for picking up with Athe unit pile'the group of pickup brick upon which the unit pile rests. Y o

The fork 45 employed for lifting the unit pile from the car 1 shown in Fig. l has fourteen tines.' `It will be observed that betweenV thefourthand fifth'tine and the" tenth and eleventh tine the pickup bricks are not em- `three on three.

ployed since the arches come at thispoint. Thek additional-I pickup f bricks, which form part of the thirdv and ninth groups, maybe removed after the unit pile l() has been picked v ofi1 of the car 1 and deposited in the kiln. @I j have vfound in practice that it is not necessary to remove the loose pickup'bricks except at the outer ends of the kiln. They are removed' byV racing them arches. v

Each group of pickup bricks :for a single i section of the Vunit pile comprises four bricks l f placed edgewise two bricks widerand two bricks high, with thejlength ofthe bricks transverse to the base plates or channels, such as 21. Y

out of the open endsiof the These pickup bricks comprisetwo layers V or tiers.v A.The neXt tier, that is, Vthe thirdV` counting upwardly, comprises bricks dis-y posed transverselyt'o the pickupfbricks and extending longitudinally. "The f guides y241' i and 25 accuratelygdefine the -pierwhich Vis formed `between arches, and thelend plates 9 define the,` limit Vof outward setting of the longitudinally arranged bricksl foreach of the four vertical4 sections ofthe unitpile. The fourth, fifth` and sixth tier-sare-` piled The seventh pile is Y three, but it will `be observed that between also mainly on A the outermost three Vbricks disposedf-'longi--- tudinally, namely 51 atthe leftand' 52.-at the right, a single brick as at 53 and 54 isV laid crosswise beforev the next longitudinal bricks y are placed; This is done to project the lon-V gi'tudinallydisposedbricks and 56A out over the edges'of bricks below the same to close in the topof the arch. 'This building 'of' the bricks inwardly toward. each other is termed Jetting or turning of the arches."y

interposed between longitudinal bricks `so as to Vbring the bricks. 58 and 59 likewise over lthe bricks below them to turn ior j et the archv from the pier. `.The upper end -of the-guides 24sand 25 definethe placing of thebricks 58 and 59 so that the work of 4the menV at the hacking table is. greatly facilitated.l 1 f z The eighth and ninth` tiers of brick are next laidand these tiers, itwill be observed, are

so disposed as tobring the bricksA 60 and-61 lengthwise over the gap between thebricks 58 and 55 respectively. 'Also the bricksV porting the'bricksO andl; A z

The top layer has longitudinally ldisposed bricks rat the ends bearing against the-end',Y

guards or plates l9 and has two bricks end to end at the.'center,"and the remainder of theA tier comprises transversely disposed bricks.

After the car 1 has been lilleditis then :7

Y i v"1'05, V`Upon the o-pposite side of each arch like- Y Y wise a single transverse brick 56 and v57 is,

passed on and pushed into the dryers'where the bricks are subjected to hot gases for dryL ing, the arrangement ofthe separate channels Orbase plates 18, 19, 2()V and 21 andthe perforations through these plates facilitating the passage of hot gases up along` thesides of the bricks for drying the same to facilitate burning. After the cars pass through the dryer a workman insertsa `bar between one of the side frames and the outer one of thebase plates or channels and forces the channels with the bricks piled upon them sidewise as closetogetheras possible so that the unitpile is'compacted crosswise ofthe oar.

Thereupon the lifting fork 45 is brought into position with the tines 44 of the fork in register; with the spaces between pickup bricks.. The fork comprises a substantially Ufshaped frame with one side of the VU forming thetines and the upper side of the U .forming-a frame, as indicatedv at 63 in Fig. 5.

This U-shape'd frame being suspended as on the links 64 and-65 on-a turntable frame 66,

which is mounted as by means of the ballA Y bearingsA 67upon anfupper frame68 carried mechanism`70. connected to the turntable s frame 68 so vthat the fork may be-brought to any position within the kiln space, and due to the swivel or turntable construction, as shown in Fig. 5, the fork.V may be turned into any angular position desired.

The car 1 shown in Fig. 1 is employed only for producing unit piles with transverse arches 30, ltherethroughto be used in forml ing the lowermost` layer. of; unit piles in conf structing the Vkiln indicated generally inFig 7. In taking the unit piles 10` showninFig. 1' from the car. 1 the fork is inserted Vbetween the pickupl bricks and the crane then raises 'I 50 couldbe projected-in lifting the pile.

the fork,'whereupon the fingers 50 are projectedfrom the sides of the tines, and grip the lowermost pickup bricks by laterally ap-r i plied pressure, and then the entireunit pile is raised olf of the car.

LSince the guides 2d and=25 are pushedtogether edgewise, they do not present'any opening into which the ends of the fingepts.

i the topedge of one of the tines shouldinad'- vertently catch on the. short horizontal endsV 29,l 29 :ofthe guides-24,25. they are easily dis-v lodged by bending the guides orpushing them away, these' guides beingfpreferably formed of spring metal so that theyV may bereadily bent without assuminga permanent set. In

piling thebrick into the kiln the unit piles 10 with transverse arches in them are set upon the kiln floor, as shown in Fig. 7. First a unit pile such as is set at one corner of the kiln with the longitudinal axis of the pile vextending longitudinally of the kiln floor and with the arches 30 and 31, which-are formed therein, disposed transversely of the kiln iioor. Thereupon a seriesof unitl piles such as 76, 77 and 78 are set upon the floor in contact with each other and all with their archesY in alinement. Likewise upon the opposite side of the kiln floor and beginning at one corner there will beplaced a similar series of unit piles beginning at the outer end and set inwardly towards the center. The reason for setting in thismanner is'because the track 71, 72 for-the crane 69 does not permit the` crane car70 and hence the fork 45 to be car# ried beyond the line ofthe track on either side, and hen-ce to iillthe entirel kiln floor as full as possible it isnecessary to startf'piling at the outer edge and pile' inwardly. Tn the instance shownn in Fig. 7, there are four unit piles 75, 76, 77 and 78onthe lefthand side,

and likewise there lare four unit piles on` the right hand side, leaving a space between: them substantially ten brick-lengths wide. y

This space is necessary to permit. withdrawal. of the fork from the innermost unit Y pile after it is set. This center spacer is then filled withA solid. unit piles,that is, unit piles having no arches formed thereinwhen the bricks are hackedonto the car. y For. forming the unit piles placed in'this center space, cars having the plates or pallets 18,19, 20 and 21 without guards 24: and 25 thereuponv are-employed, and solid unit piles are hacked onto the cars, dried, compacted,V liftedV with the. fork and deposited in the center. The outer# most pile in the center part ofthe lowermost layer of the kiln indicatedl at 80 is of only two-'brick-lengths in thickness'such as would be provided by piling the bricks on two yof. the pallets or base plates such asf20 and 21, and this halfunit pile 80 isset with its innermost edge in line with the adjacent edgeof the arch 30 and with its outermost 'edge in line with the edges of thetrunnelled vpiles i 75, 76, 77 and 7 8, and like trunnelled piles on the right handside Aas viewed in Fig. 7.

The nektA unit pile 81.which.is put in the center space betwee-nthe tunnelled piles, is'of v'four brick-lengths horizontal thickness, and so likewise areVthe .remainder of the piles 82, 83, etc. 1 1

After the central piles such as 80, 81,82 etc. areA set intoqplace, workmen with eXtra dried bricks turn the arches-by the following operation,.as illustrated inFig; k8, and as disclosed'v andV claimed V in my copending Patent No. 1,773,827ja'foresaid, that isitojsayfa layer of brick on edge is projected out'transversely Voverhanging the spaceet between thetwo piles 8O and 81, this space Sflbetween the pilesbeinginalinement with the arch 30. Likewise from the pile 81 a` row of bricks on edge is projected out transversely over to close oif the top `of the arch'. These'bricks such as indicated at85 and 86on opposite sides of the space 84, extend outwardly an amount substantially equal to the thickness of a brick, and then a row of brick as indicated at 87 arranged end to end is laid back of the bricks 84:. A similar row of bricks 87 end to end is set back of the bricks 86 to l'ill in the space which is left by the advance of the bricks 86 out over the edge ofthe pile.

In the lowerright hand corner fFig: 8 the operation of Jetting these bricks out in order to turn the arches is shown in process.' That is to say, the bricks 88 and 89 are shown as pulled out from the positionr formerly occupied by them, and bricks 90 and 91 as being placed backof the bricks 88 and 89. In this manner arches are formed as continuations of the arches 30 and 81 in the unit piles 75, 76, 77, and 78 and` so on entirely through the bottom layer of unit piles inthe kiln. In this manner the entire lower layer of the kiln is completed with arches running transversely thereacross. It will be noticed that the space between piles such y asv 80, 81 or 81, 82 and the like are not completely closed over in the lower layer, but that a space as shown in Figs. 7 and 8 is left in the topmost tier of bricks of the unit piles is `placed on top of the lowermost layeror tierof piles, these unit piles above the lowermost layer or tier are all solid unit piles. The pickup bricks of the solid piles span the space remainingbetween the piles such as 80, 81, 82 and the like, and complete the arch thereby.

The unit pilesof the second layer or tier in the kiln are indicated at 98,' and they may be set in any desired position so long as they bridge over the arches between piles 80, 81, 82,.etc. Thereafter additional layers or tiers of unit piles of brick without arches, as indicated at 94, are set in place in any desired or usual manner to bring the kiln by successive layers or tiers to the desired height.

Thereafter the outside of the kiln is scoved' as, for example, by piling a single layer of burned brick 4or brick stacks around the.. out side of the kiln except in line with the arches, and daubing the same with a suitable sealing materialwhich may be clay and brick dust.

The ,outer layers of the kiln may have powdered coal incorporated therein to assist in making up the loss of heat due to radiation, as is Well known in the art. Dog houses may be builtout from tbearches to receive the burners indicated at 9,5 vand 96at oppor'A fsite ends of the arches so as tobring the flame reduce the burning time to kabout 48 hours. s 80, 81 etc. When thenext layer of unit piles j Afrom-:these burners in'contactfwith theouter- Amost layers ofthe brick of the kiln.- The burners'k 95 and 96 arefsupplied withsuitable v fuel, for example, oil and steamV or oil and air,

as by meansof apair of manifolds 97 andf98 .running i along; 'the 'kiln shed.; Suitable branches from eachofthe npcs-97 98 extend to the burners where valves are provided for the control of the relative propor- 4`tionand. for the totalquantity In burning the V,brick the burner endeavorsto lkeep Y.

the arch filled from end to, end with hot gases or products of combustion, which is termed fire, solthat the entire bottom of the arch may, when the burning has progressed to the Y point of getting the lowerflayers hot, be subbrick-length.. As' a result thediremaybe` madefto'penetrate` the lower layers of the kilnrmore rapidly than has, heretofore been possible, andthe saving in time ,of burningis r'.V

ofgreat importance. Whereas it has taken about 76 hours heretofore to burn a kiln of brick set with arches ofthe usuall size,l itis now possible with a kiln of my inventionto The saving in labor by having thenarrow i arches is also `of great importance. 4 y While I -use a greater number of; arches, that is, in a kiln of approximately 1 one million bricks, vit

Ywas'customary previous to my invention'to 'if provide substantially` twenty-five y arches. According to my present invention I employ about thirty arches, but because of the much smaller i number of l bricks toy be set by hand,

tion it 'is necessary to handle only about yione hundred `bricks for eachyarch where the arches arefconstructed as shown in VFigs.-7 and 8.-:y

gle brick-length arch, lI may employ: only solidpiles as at the centerof the kiln.4 shown vin Figs. 7 'and` 8, and construct the arches .byu .setting the piles alltransversely of the gfloor,

as indicated in Fig. 10A in the lowermost course of the kiln, separating the solid pilessuch as 100, 101 and102byspaces1for arches,

whichvspaces are indicated at 103 andlOllin a Fig. 10 'of a single brick-length in width.:

Then the vturning ofthearches byjetting outthe bricks is the same as shown in Fig.. 8.

A.wheregarch'es are of :a widthlgreater than a l Asfan; alternativeiform of making thelsin-y izo Thereafter the second layer is set as shown 'in Fig. 9, and so on upthrough therest V.of

the lowermost layers-it is not necessary to,

preform the 'arches in `the unit piles, and

Vhence all -of the unit piles may be hacked on cars without guides such as 24 and 25. o

Vhile I have shown in Fig. '7 the two methods `of forming thearches in combination, it is to be understood that either method may be practiced alone if desired, but in the event that the preformed arches are employed throughout the lowermost'layer ofl the kiln, lspace must be provided along oneside ofthe kiln for withdrawing the fork. VrThis is possible in many installations where there is a loading shed alongside Vof the Vkiln floor and the'crane is employed to spanboth the kiln floor andthe loading space. f p

I do not intend to be limited to the details shown and described.

I claim:

l. AIn combination, a platform for support- '3. In combination, a'truck having a plat-KV form for supporting a unit pile of bricks, said Vplatform having guides along the ends theren of for defining the ends of the unit pile, and an open guide disposed on kthe platform be- Y ,twee-n said end guides for defining one side of al transverse arch through the unit pile.

4.,Invcombination, a. platform of greater Y length than width for supporting a unit pile of bricks, and a pluralityl of spring metal guides for guiding the piling of bricks thereupon to define transverse arches through the ile. p 5. In combination, a plate or platform for supporting a unit pile of bricks, said plate having a pair of spring guides extending upwardly therefrom, said plate being substantia-ilyl ten brick-lengths in length and substantially vone brick-length in width, said guides comprising each a longitudinal portion extending vertically not less than six brickwidths in height, and having a horizontal portion above said vertical portion. Y

6. In combination, a plate having a pair of spring guides extending upwardly therefrom', said plate being.l substantially ten brick-lengths in length, vand substantially one brick-length in width, said guides comprising each a. vertical portion not less than six brick-widths in height, and having a horizontal portion above said vertical portion substantiallyT one brick thickness inv length, and a. short vertical portion above.,

said lhorizontal portion of substantially one brick-width in length.

v7. In combinatioma plate having a .pair ofspring guides extending upwardly'v therefrom, said plate being substantially ten bricklengths in length, and substantially'-Y one f brick-length in width, 'said guides comprising each aV vertical portion not less than.` six brick-widths in height, and having a horizontal por-tion above saidA vertical kportion substantially one brick'thickness in length, a short vertical portion above said horizontal portion of substantially one brick-width in lengths in length, and 'substantially one brick-length in width, said `guides comprising each a verticall portion not less than ysix brick-widthsin height, each of said guides having a foot portion secured to the `plate of approximately two brick thickneesV in length. L y

`9. InY combination, a platform substantiallyten brick-lengths long,ihaving end lguides approximately nine brick-widths high, and having two spring guides four brick-lengths' apart along their major por- V ti-on'and having shoulders four brick-lengths and two brick-widths apart at their upper ends, said shoulders defining the upper ends of arches when bricks are piled lonto the platform. Y l

' 10. In combination, a platform substantially ten Vbrick-lengths long havingA end gui-des approximately nine brick-widths high, guides on the platform for defining two transverse arches in a unit pile of bricks on the platform, and a fourteen-tained lifting fork for lifting the pile clear of the guides.

11. In combination, a platform substantially ten brick-lengths in length'having end aY pair of guides for forming arches symmetrically disposed on the platform and having their mainv portions separated by a distance substantially equal to four brickvguides substantiallypnine brick-widths high,

lengths for defining a pier between them,

said pier having five sets of pickup brick in the 'lowermost course thereof, the pile of brick having arches adjacent the guides and on opposite sides of the pier, the outside of the arches being defined by half-piers each substantially two brick-lengths in width and bricks in the bottom layer thereof, said platn form having end guides and intermediate guides, a fork having tines for engaging the clear of the.

pickup bricks of the pile and for lifting the pile, said guides lying wholly between ad-V jacent tines of the fork.

13. In combination, a platform for supporting a unit pile of bricks, said platform having intermediate its ends upwardly extending guide means for determining the location and form of a transverse arch through the unit pile of bricks.

14. In combination, a platform for supporting a unit pile of bricks, said platform having end guides for determining the length and height of the unit pile of bricks and symmetrically disposed guides between `the ends of the platform for dening between them a pier and between said latter guides and the ends, arches extending transversely throng the pile of bricks.

15. In combination, a platform for supporting a unit pile of bricks, said platform having end guides for defining the length and height of the unit pile of bricks supported by the platform, intermediate spring guides extending upwardly from the platform and being of less height than thel end 'guides for defining transverse arches through the unit pile.

16. In a device for guiding the formation of a unit pile of bricks and for supporting (the same, a channel iron base member of a width approximately equalto the length of a brick and of a length approximately equal to ten brick lengths said channel member having a substantially flat back portion and a pair of arch dening guides comprising a pair of flat spring bars secured upon the back of said channel.

17. In a device for guiding the formatio of a unit pile of bricks and for supporting the same, a channel iron base member of a width approximately equal to the length of a l brick and of al length appproximately equal to ten brick lengths said channel member hav-V ing a substantially flat back portion and a pair of arch defining guides comprising a pair of flat spring bars secured upon the back of said channel, said guides comprising each a main portion extending substantially at right angles to the back of the channeland a top portion for defining the top of an arch in the ile of bricks.

18. brick receiving and supporting structure comprising a base frame having longitudinally extending end frames, narrow transverse guides across the base frame, longitudinally extending channel bars having their flanges notched to lit said guides and separate arch dening guides secured to the backs of the channel bars and extending longitudinallyand being of a less height than the end guides. c

In witness whereof I hereunto subscribe my name this 14 day of May, A. D. 1929.

ARTHUR J. THERRIEN.

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