US970870A - Concrete-mixing machine. - Google Patents

Description

jH. J. s. ALEXANDER. GONCBETE MIXING MACHINE.

LYPLIUATIOH YILBDBB. 19, 1910.

Patented sept 2o, 1910.,y

5 SHEETS-SHEET 1.

` H. J@ AUBXAND'BB..

GONGBE'IE MIXING MAGHREB.

' Jrfuonms runen rms. 1s, mes

970,870. Y 'Patented sepnzamo.

' K Azramq 5;. J. J. ALEXANDER. (Sexcams Mmm MACHINE. .f-yPLm'uxox Hanru-9.1mm Y 1 l n Patented Sept. 20,'1910.- l

.han

- gnam UNITED STATES PATENT OFFICE.

CHARLES L. BERRY, OF YOUNGSTOWN, OHIO.

CONCRETE-MIXNG MACHINE.

Specification of Letters Patent.

1'0 antw/mm 'it lmay concerti: l

Be it known that, I. IIAYi-:s J. J. Ann-XAN- iuui. :i citizen of the United States. residing` ut Youngstown,Y in the county of Mahoning und State of Uhio. have iurented certain new :uid useful luiprorcinciitsin Coiicretef Mixing Machines, of which the follo'wiiig is :i specification.

The present invention relates tol iiieaiis-fot mixing concrete or other analogous niatei rizils, and the primary object is to provide :i

`structure. hy in ezins of which concrete can lie continnouslv niixed. and delivered, thereby avoiding; thcneccssity 0i' stopping the` nun-lune for receiving the uninixed unite# riails, und for deiifveringthe concrete. after A further and iniptirta'nt,v ohiect is to provide a structureV thiitnI siiuple and ceinpuct, so that it will occupy hut little space, and

-can he readily transported from pince to plate. y y

(lne embodiment of the invention is disclosed in the accoiupuni'ing drawings, but it will be obvious froni nu inspection of the' cluinis hereto appended that tht` in\-'ent .ion

is by no ineens limited to the exact structure set. forth. y

kIn seid drawings: Figure 1 is a side elevation of the mixer. Fig. 2 is :i top plan view thereof. Fig. 3 is :i vertical sectional view through the structure. Fig. 4 is u horizontal sectional view. Fig. 5 is :i horizontal sectional view. on the line 5m?) ot" Fig. 3.A Fig. 6 is a detail vertical sectional view through the lower portion of the nui# chine. Fig. 7 is a detail perspective view of aY section of the lower supporting spider.

F'G. 8 is :i detail View of one of the contro ling gates..

Similar reference uuniemls designate corresponding paris in the several figures of4 side of the inner cusing.

toni is furthermore provided with a central hearingy step 19. I y y Arranged cent-rally in the outer easing is :i cylindrical inner casing 20 having :in open b ottoni disposed above and in spziced relution to the bottoni wiill 15 oi the outer cas- Patented Sept.. 20,1910.' Application ted February 19. 1910. Serial No.f544.919. v- 1 ing, oriuiufbr what muy he termed ii receivin;r ciniiuber 21. This inner casing;` is snpported by :x .spider s';.rii1.:tiix'e comprising an outer friisto-conicril riin ".12 having inwrirdlv extending :mns :23 and curved nungen fl that: are fitted against :init suitably secured `to the lower portion of the cylindrical casing Q0. The iii-ins Q3 are provided withl `oluiositely extending downwardly incl-ined flanges 2.3 that orni mouths communi-:utingl with the receiving chamber 21, as hereinlzitter explained. AThe rim 2:2 registers within`the hopper bottoni l1.

The' :irius u `cinistit'ute, theI lower ends or buses ot partition walls 9G that :ire secured lo Tsuiilni'iiis :incl extend rudi' lly between the outer :ind inner cusingis. th forming ninterinl holding' roinpzirtiiu-nts. which communicate with the receivingy ehuiuber 21, through The. passage of material to said chuniher 'from the ningu-V the before mentioned mouths.

s controlled by u plurality of vertisnidiii'g gutes 2T that operante over the mouths, .ind have vericully disposed langes 2S that slide upon the inner casing 20, the

ends ot' these flanges operating in guidcwiiys 29. formed hy the overhainging ends of the .spider thinges 2l. 'lhe gutes are ope-rated and helii ni diti'erent positions by means otV hangers comprising convergent :mns 30,` se.- cured to the gzitcs 2T und connected at. 'their upper ends to links or rods 31, which slidiibly pus-s through an :ingle bur in the. form ot'l un :inuuluil ring :itl secured to the outer Nuts 33, adjust:- ably threaded onthese rods and bearing upon the :ingle harserve, to. hold the gutes ut. lilt'erent heights. l f

For the purpose of mixing und ecvsiting thc material in the inner casing 20. :i screw or worin 3l, is eiiiployei'l within sind inner eus-ing, und is carried by n. sliuit 35, the

lower end of which is journaldd in the box lf?, the upper end carrying :i supporting collzir 3G secured thereto, und operating over a. box 3i' that is fastened to the cross hars 11 of the t'iuuie. Bearing halls 3S are preferably, though not necessurily, interposed between the iiunihcrs 36 :ind Si', und it! will thus be lupper surface of thesaid screw.

evident that the weight of therscreivnnd the thrust thereof is taken entirelyv by this upper bearing. The said' screw is'provided with a .pluralityy of inner bowed` detlector blades 39 of' slieetnietal, which are 'secured at inter-k vals to the shaft 35, und are located upon the ppm sitely disposed detlectorbladesl in the form of straight nictal strips :u'o preferably mounted on the outer portions of thc'soi'civ or worm. ltwill be noted thatthe sfiid eltrating and mixing screw or worm extends' below the lower end of thevinnei' casing 20, and thus into the receiving chamber :21, and its lower end is preferably provided with a scraper blade 41, whichvoperates upon the.

wear plate 18 bottom 15'.

` The conveyor and mixer is driven from a drive shaft 42 which is operated 'from any Suitable source. of power. This drive shaftr onl the upper face 'of the is provided with a sprocket wheel 43, around which passes a sprocket chain 44. The lat'- ier also passes around a sprocket chain 45,

yfixed to a countershaft i6 that is journals-:l

in the upper portion of tlierame. The

i countcrshaft carries a beveled gear 47 meshmachine is as follows.

ing with a beveled `.vorin shaft ofY The concrete or other material, after it. has been mixed and elevated, is delivered through a vdischarge.l opening 49 vformed in one side of the upper portion of the'iuner casing 20, and associated with this discharge opening, is a downwardly inclined chate 50. A controlling gate 5l operates over the disgear 48 mounted on the lcharge opening, and is connected by a link 52 with one end of a lever 53. The lever is `iulcriinied between its ends, as shown at 54, on the supporting frame, andl its outer end has an actuating link 55 suspended therefrom. y

AIn oi'der to supply the necessary moist-nre Vto the material, a pipe 56, leading from any suitable source of Water supply, is connectedy to a pipe 57 surrounding the lower portion of the outer casing, and this )ipe 57 has a plurality of inwardly exten ing delii-ery nozzles 58 that communicate with the rc-` ceiving chamber 21. n f v Briefly described, the operation of the` The different elementary materials are placed inthe dierent magazines formed between the inner and outer casings and the proportions fed to the conveyor and'mixercan be governed byy elevating the different gates to a greater or less extent. -Having supplied the magazines with the -materials,'the machinev is placed in operation, a proper amount of Water is' f admitted to the pipe 56 and the worin or screw will thereupon remove the materials as they gravitate into the receiving chamber and carry them upwardly in the inner casing. During this 'upward movement, they videro are thoroughly agitated, and' mixed, and are linally delivered through the discharge opening 49 down the chute 5G, into any de# lsirable receptacle. It. will hc evident that byv keeping the magazine supplied, the operation of the machine will he continuous,

.and no stoppage required' tosupply materims and discharge the product.

Ioreover, thostructurc is exceedingly simple and compact, so that it can be built at comparatively small cost and vcan be readily transported from place to place, as need may require. i

From the foregoing, it is thought that the construction, operation and many advantages-oi the herein described invention will be apparent to those skilled in the art with#r out further description, and it will be understood thatvarious changes in the size,

shape, proportion, aadminor details of construction, may be resorted to without de#V parting from the spirit. or sacrificing any of [the advantages of the invention.

I claim: Y

1. In a machine of the character set forth, the combination with a casing, of a rotaryL mieraiid elevator operating therein, a pluralitf: of material holding magazines having discharge mouths delivering to the lower portion of the casing, and :means for individually controlling the mouths.

2. In a niachineof the character sei'. forth,

the combination with an outer casing having a bottom, of an inner casing having an openk llower end terminating short of the bottom,

forming a receiving chamber, a mixer andv elevator operating inthe inner casing and in the receiving chamber, ay lurality of partitions interposed between ie outer and inner casmgs and v.forming material holding magazines communicating with the receiving chamber, and ineens for governing the p* ssage of inaterialfroni the magazines into the chamber.

3. Ina machine of the character set' forth, the combination with an outer casing having a bottom, of an inner casing having an open lower end terminating short of the bottoni, forming a receiving chamber, a mixer and elevator operating m the inner casing and in the receiving chamber, and av plurality of partitions interposed between the outer and inner casing-s and forming material holding magazines communicating with the receiving chamber, said partitions having downwardly inclinedvdeflector flanges.

4. In a machine of the character set forth,

the combination with an outer casing having a bottom, of an inner casing having an open lower end terminating short of the bottom, foi'minga receiving chamber, a mixer and elevator operating in the inner casing and in the reciting chamber, a plurality partit-ions interposed between the outer and inner casings and forming material holding eoureyei'foperating in the inner casing, paruiterpc'iserl between the ou. material holding inagnnzmes communicating n niountoiion the-inner crisi ythe combination with :i freine,

' open lower end, a mixer nndconveyer o rinner casing having an upper gaies operating herr ywithin 'the outer casing unil terminating 'holding compartments, gates for controlling upper endY of the shaft.

` omero l partitions each having orpositely extending and downwardly inc ined deflector flanges forming contracted mouths, and. gutesA controlling the mouths. 5. In a machine of thechurnct-er set forth, the combination with :in outer casing, of an inner-casing locnted (herein, a, mixer and titions interposed between the coniuge and forming mix'teriul holding magazines that communicate .with the inner casing, and controlling gates mounlccl on. said; inner casing for governing the passage of mixte.- riul from the magazines. f

6. In a machine of the character set. forth, the combinationr with an ont-cr casing, of au inner casing located therein and having :in

atingin the inner casing eindextending into ilie'lovser end of the outer caeing, partitions nge and forming with the lower endo.. he inner casing, vertlcizlly sliding gates controlling such communiciirion, hangers for eizsdendinv Said garce, and vactuating and holdingevices ng and connected` to the hangers.

7.. In a machine of the character set forth, heronilnnatmn with :in outer casing, of an 'delivery :md o lower inlet. portion arranged wit-hin Y the outer casing, partitions interposed between the msings and forming material holding?r mug.-izines :said partilions having oppositely disposed delico-tor ihn s', rei'firrzlly sliding litho (hinges, :ind n rotary conveyor and mixer arrnngixl within Ain and terminating short the inner casing. y

8. In a machine ot' the clmrnf'ter set. forth, 5 I of :in outer casing mounted therein. and lmring u hopper bottom, an' open endet! inner casing :arranged `short of the bottoni, partitions interposed hetweentlie casings :ind forming moterml Lhe pasmge of materiel from the comp niente into the space bolo the inner ce?` ng, u screw mixer unil elevator oi'rangeii withinn the inner cna-ing und having u shaft projecting above: the same, irrotary hearing foi-.tho

supporting the sinne magazines communicating with the receivl and the screw conveyor, means Eer rotating "ate for controlling' the del theshaft, und n frornthe upper endy of the livery of material:` :nner casingi 9. In a machine of the character set.fortli,

- the combination with av casing, of @mixing screw operating therein, oppositely dispose agitator# carried bythe screw, mid means for feeding materiel to the screw.'

10. In :i machine of the charaeterset and extending over the worm, und means for feeding material to the worin.'`

l1. forth, the combination with a casing, of n rotary mixing screw loczited therein :ind including a shaft, and a Wform mounted thereon, outwardly extending agitator blades secured to the shaft :ind located upon the worm, agitator blades secured to the outer portion of the worm, enrl means for feeding material tothe screw.

l2.- Izi a machine of the character set4 forth, the combination with an outer easing, of an inner open ended casing located there of the same, a mixer and conveyor screw operating in the inner casing, gates locate-fi between the casings und controlling to the screw, und means for delivering water into the outer eosin; below the gates. v

13. `In :i machine of 'the character Set i'orth the coml'fimition *Vith a frame of or.'

nrinnged within then-mer casing and in the lower portion or" the einer meing, means for suspending said screw anti rotation, means for rote means for delivering; tion of the casing.

In testimony when',

ting the some, :ind water to the lower porw @unto affix my .o Witnesses.

. 1'l'itnesses S. L. CLARK, IsAnni. Gers.

In u machine ofthe vcharacter set ermiltinlf its P o im .1. .i ALEXANDER. Y

the suppl),v of material

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