US1674620A - Concrete machinery - Google Patents

Description

June 19, 1928.A 1,674,620

c. M. EBERLING CONCRETE MACHINERY Filed Fb. 13, 192e 2 sheets-sheet l (fill v Charles .lhl'blez'lng 4 [zzz/enforins 2 Sheets-'Sheet 2 -i Mwwwwluw,

Charles .M Ebex-Z j June 19, `1928.

C. M. EBERLING CONCRETE MACHINERY Filed Feb. l5, 1926 Patented June 19, 1928.

. '1U N I'TSED PATE-NrjPorri .f

CHARLES LM. fiminine,- F cLEviiLn-ivi), .oHIo, AssIGNoR-:mo `,'iH'E EBERLING MACHINES SALESCOMBANY,OF'GLEVELAND, OHIQAEORPORATION oF OHIO.

CONCRETE -iyrAoHmERi- Y l Applicartionjied ifigruarylia, 'iezefffsferiina 88,008.- 't A I 4This invention relates to concrete'lmachiiiery and thas'especial reference to c'oiiveying -inechanisni vfory 'freshly moulded conf crete articles,` The objects of the` invention 5 are'the'provisionof nevi7 and improved conveying mechanism wherebythei-agile7 nevvly-made7 articles can be conveyed .away

from the point of manufacture to a curing place Withoutfinj ury byv vibration oijarring 10 they ,provision of improved means for .sup-

porting and transporting,l and curing the ar-v ticlesLso as tolsa'vev time, space, and flfabor'; While further objects and advantagesof the invention will becomeapparent4 as the-descriptionproceeds...y V 'It hasf'lofngbeen rails and thereby convey'the.bricks'into .drying Chambers tened' argyikiing. 'its has, 10mg.

i been knownftha't concretezcan l'be'.lcau'sedk to ing, steam being turned 'f into ythe kilns, :but

the jeringa@ vibration@essere sie truc-kscaused serioustingury e to y the concrete7 especiagllyrin case the design was at alldeli-` cate;ortliin'lwalledr produ/(Etsy:

tough' and generally;ftliickgyvalled; ywould stand they jarring but `concrete, 4'espec iallyf the dry-pressedI 'varieties` made by `tile-ma-v chines, jivas disintegrated unless made eX travagantly thick iiiA` section richin jee,- ment. In, order to make a low priced tile the .ratio fof cement toY aggregatez-nee'ds to ,be` small gf in .orderl to stand the press operationl the mixture must beV handled, rather :dry 'thev freight and cartage kcosts -it is desirable yto make the articles cellular` and thinqwalled;

such an article .enhibitsample strength :after y steaming for alfew hoursbuty prior. to steai'n-V ing. it isvery ragi'leanchlthe usual conveywithout excessivev breakage,`

y customary in y the manu-` facturel of clay brick toi pile theyllrefshlymoulded bricks on Wheeled cars running on requisite:V moisture ,e being supplied by`v the steam; in oifde'r to savemateriahand tofprof. duct easilyy handledrarticles also Iteenf; able ready hydration as FWell asto .savef ing mechanism has beenV unable ltolhan'dleqit The important feature of my invention is the use ora. kind of flexible-cable' conveyor running on closely spacedrollers and carrying the tiered-pallets from the press to thecuring kiln'. lFor purposes oiiitliis applica-y tion I have' shown'cellularVl building tile, although itappliesto'all moulded concreteA articles. n j v ll isfa vertiallsectional 'view'thr'ougli a concrete curing kiln equipped' With. iii-yinvei'ition and illustrating therelation of the concrete press thereto; "Figs Q and 8 are vertical ysectional views corresponding to the lineZ-Q and.' 3 3 respectively olflFigL; 5;

Fig.Y 4' is ai perspective view oi two empty palletsyaiid Figg is aftop plan view of my improved trf'insport'iiigL systein"` showing the relation of thesa-me to the '.-kilnfand tothe concretepress. v E j j )'{Therpress may jb'e'oi any suitable or-dcsired type and' isasynibolized here zby 'Y "the forinor riinwayl'oiivvhich a Workinan may'Y stand to l lift i off fthe; pallets ask they are de# V'livveredwloy 'the rotation? of the sprockets liroduced by. the lbelt'wheel 4. {Located 'upon theopposi'te side of the .platform froinftlie oftbearingmechanisinfl and spaced alittle distance therefromv is 'a curing kilnv G which may be ofY kany 'desired length and Width depending upoiithe capacity of the press: andr is, preferably` provided, `with lmeans' -(not shown).l for f, the injection of stean'i--or moisture. 'I have shown vthe twoA sides of 4the kiln y*as provided With hinged doors Y 7 "7 'which can be openedy to 'permit thefiiisertion and removal vof lthe concreteV articles, for' 'closed -to retain'tli'e heat and i'iioisturel Sup 'horizontalfof'hearing chains or ca lesl-'l'k y ported upon thefaijther side oi this kiln` f with Y ytheir l*axes horizon-tal and* preferably inlineare a plurality; orspacedv rollersoi". sheaves y10-10 having cables 11y .Wrapped therearound. vCompanion Wheels orsheav'es.

lQlQ are-"located beneath-,the -platforniif2, one for-cachot tlielsheaves l0 and in the same plane therewithaiid'each ot thecables is looped about such .companion sheave. .The arrangement. is,` such tliat` ,the upper, runs of.

,bearings an oil trough 16 is preferably prol vided between each pair of rails into which the bottoni part of each roller projects. y

The concrete articles are delivered from the p-ress on suitable pallets, which vpieferably consist. of flat rectangular boards 2() having upright end pieces Zl-Ql of sufiicient height to shield the concrete when successive pallets are stacked one above the other. Each of these end pieces preferably extends below the board 20 as shown in Figs. 2 and ll so as to depend beneath the sup* port-ing cables in guiding relation as shown at 22, and the upper edge of each end piece is preferably notched as shown at 23 to enable the insertion of the worlrinans fingers. In order to center these pallets upon the cables I have shown short lengths of angle iron 9A: fastened" to the railsat the loading end, their upstanding flanges fitting within the depending edges of the end- 'lboards. The pallets are preferably piled to about four feet high which is about as .far as a workman can conveniently lift the weight- The distance between adjacent supportingl rollers is preferably not greater than half the width of the pallets so that there may be no swaying or shaking.

The cables are driven by rotating the sheaves l0, and a great many arrangements to this end may be employed. I have shown herein a preferred arrangement whereby the sheaves are coupled together in pairs and these pairs driven selectively. To this end the sheaves are secured to hollow sleeves rotatably sleeved on the drive shaft 3l which in turn is rotated by the sprocket 32 and chain 33. Onel end' of each sleeve is notched as at 3l lfor the engagement of a clutch spool 35, slidably mounted on the shaft but compelled to rotate therewith by a key or spline. Preferably I couple only one sleeve to the shaft at a time, and rotate the same continir ously at such a speed that each tier will have moved just far enough while being built up to permit a new tier to be started between it and the platform. As soon as the first tier reaches the far side of the kiln, the power is shifted to the next pair of cables. lVhen it is desired to en'ipty the kiln the same procedure is followed further, the pallets being drawn beyond a kiln to a platform 36 on which the workmen stand to remove the ar ticles from the pallets and place them on suitable conveyors 37 by which they are transported to loading or storage stations (not shown) while the empty pallets are returned to the press. In order to prevent overdrawing of the pallets I have sliowninclined friction rails 40 at the discharge end on which the same come to rest.

I do not restrict myself to any of the details of construction herein shown but claim my invention broadly as set forth in my anneXed claims.

Having thus described my invention what I claim is: r

l. The combination with a concrete curing kiln, of a plurality of rows of rollers leading from a point without to a point within said kiln, all the rollers having their axes horizontal and parallel, the rollers of each row being spaced apart and having their planes in line, endless cables lying on said rollers, one cable to each row, means for moving said cables, equally in pairs, pallets adapted to lie on said cables, each pallet being of alength to engage simultaneously a pair of cables,

and guiding means at the loading end to ceny ter said' pallets on the respective pairs of cables. p

2. The combination with a concrete cur-ing kiln, of a plurality of pairs of spaced parallel horizontal rails extending into said kiln, spaced, parallel, horizontal, transverse studs carried by said rails, grooved rollers` jouriialed on said studs, said rollers arranged in rows and the rollers of each row having their v grooves 1n line, terminal rollers' at each end' of each row, endlesscables looped around said terminal rollers and'having their upper runs lying in the grooves of the first named rollers, the lower runs of said cables being located below Said firsty rollers, and power connections for revolving said terminal rollers in pairs, selectively.

3. The combination with a kiln forcencrete articles of a plurality of cable con! veyors extending horizontally therethrough, pallets resting on said cab-les adapted to receive pressed concrete articles, guides for said apparatus located symmetrically as regards said cable conveyors and supporting rollers for said cables spaced apart a dis-1- tance no-t greater than about one-half the width of a pallet.

Ll. In concrete machinery, a pallet com-` prising a flat supporting element, parallel depending members extending below the lower surface of the same adapted' to overlap the carrying members of a cable conveyor in anti-shifting relation, and parallel upstanding members projecting abovev the upper surface of the same adapted to elevate a superposed pallet'out of contact with articles thereon.

5. In concrete machinery, a conveyor for concrete articles comprising a pair of parallel horizontally spaced flexible cables, means for pulling said cables horizontally, spaced rollers engaging the bottoms of said cables in supporting relation, guiding means v adjacent to said cables at certain points, and

pallets adapted to overlap said cables, each pallet comprising a at'supporting element` Y and depending end piece adapted to overlap vsaid cables and cooperate with said guiding 10 means.V v

In ytestimony whereof l hereunto ai'IiX myV v

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