US1405707A - Concrete mixer - Google Patents

Description

R. R. B'EERS.

CONCRETE MIXER.

APPLICATION FILED MIIYIa, 1920.

...4.J @e e Patented Feb 7, 1922 2 SHEETS-SHEET l.

vRTR. BEERS.

CONCRETE MIXER.

APPLICATION FILEDv MAY 15, 1920.

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To all fw hom z't-may concern: f

Beit known that I, RovlR..l l3nnizs,`aciti zen ofthe United States,gresid1ng: at Alva, in thefcounty of Woods" and'State of Okla homa, have invented certainmew- 'and usefulA improvements in Concrete Mixers, of whichl the followingis a specification. 1 f

This invention relates to a lconcrete.-` mixer of-'thatftype-Whichis adapted todrec'eiilrethe il' nts tobelmixedat to an f isc iargey l i mgmt le Y p a'rtoggleconnection-17E is -afeedbucketslS "Which'vmay bevdumpedfas'shovvn yin Fig. 2

the mixed ingredients at-tvhebottoiiin The invention has as' one of- 'its obJects; the

- provision `of agvertical*concrete' mixerihavingvla series of baile elements-disposed in1 axial alignment? and the saidfbaflles servey toe ith-and mix; themateria uringv4 I engag W 'l i f l" ber 22and pivoted at 23 v-and'24I v'respec`tively;

its course through the mixer.- v Y Another obj ectof Ythe invention` resides in providing a `gravity operated `concrete Amlxer iii Whichlthe weightlof .thematerial falling on one `element oftheinixer causes-such. material tok be projected. therefrom onto another mixing element. a

A further feature of the invention consists in providinga series of gravity actuated rotating baffles in which the incomingjected centrifugally from a moving conical surface to a fixed conical surface and feeds by gravity from a fixed conical surface onto a movable conical surface. Y In the drawings: y l

F igurel is a side elevation of a-concrete mixer constructed according to the present invention;

Fig. 2 is a vertical longitudinal section;

Fig.V 3V is an enlarged detail View of one unit of the mixer; Y n

Fig. 4 is a top plan View of themoisture controlling valve and feed control;

Fig. 5 is a top plan view of one of the conical mixing bales or distributors.

In detail: i

The invention, as herein shown, comprises handle 30 andimounted en 'a -support3l lso Y thatthe said valve members may be opened .andclosed. They are normally retained in in the uppermost part thereof an inverted 'itven-tedreb; 7,",'19225L Y Apgiicaaonmed Ma`yi15,1 192e: seria; 111.' 381,170.

l a series of vertically superposed tubular axiallyf'alinedsections 1,12,vv 3, 4, 5, 6jand 7 i having, 1at the top, an'inlet-hopper 8 and at the bottom an outletffunnelf9 provided-With a vflange l0 to'fwhich ya spout 11- similarly '60 flanged asiat 12 `maybe secured by bolts' 13" :asfsho'wnv Arranged above the'fhopper 8f and pivoted rfor swingingA dumping move-g; ment'fas at 14 on a 'supporting` structure 115 Y and operated `byahandle 3member lr6 ln'alvin'g le5y to discharge its contentsfintothehopper 8, The -outlet19 ofr the vhopper v8 is closed' by j the valve members l 20V and 21 consisting of iiatf-pieces of metal/riding onfthelseat memf These Eval-ve members areL actuated through i the medium] of cables 25 and ,26"jrunning' over sheaves 27 and over'fsheaves 28 and' finallyliconnecting.=withia reel 29 hav-ing a their closed position by the coil spring 32 connected withears 33 and 34 on projections 35 and 36 resectivelyofthe valve members 20 and 21.` eneathithe outlet 19 and theV valve members 20 and 21 and in axial alinement with the mouth or outlet of the hopper Y .8 is a shower ring 37 having outlet openings 38 and fed with water through a valve 39 connected with the supply pipeg40, saidvvalve be- Y ing actuated to the closed position by a spring 41 connected with the operating member 42 90 of the valve, which operating member is also connected with one end of the cable 43 running over a sheave 44 carried on a support 45 and said cable is connected with the reel l29 so that movement of the handle 30 operates both the valve and the shower or spray.

The top section fits into the vflange 46 of the next adjacent section and is held by suitable means 47 such as screws or the like and the bottom of the section 2 fits into the fiange 48 of the section 3 and is similarly held, these joints all being indicated ingeneralby the reference numeral 49. Eachl of the sections 2, 3, 4, 5, 6 and 7 has positioned `which carry bearing seats52 receiving the bearing cap members 53 carried by vertical shafts 54 and sustained on the balls 55 whereby the end thrust on the shaft is compensated for.

There are two of these vertical vshafts 54` and each carries cones 56 having distributing varies 57. concrete mixer into two superposed umts.

- The result is that, due lto the spacing of the distributing cones 56 iny alternate relation with respect to the funnels or inverted receivingvcones` 50 the material, inv its downward course through the concrete -mixer7 is first deiected from a revoluble distributing cone to `a receiving surface and thence passes onto another receiving cone and so on through the iirst unit until it reaches a fixed cone 58 carried by aspindle59 supported in the web 60. .After passing the fixedv cone 58 the material passes downwardly through the second unitover its battles 50 and 56.

By reason ofthe shape of the vanes 61 on lthe cones. 56 the material acts on said cones to cause them to rotate while at thel same time centrifugally distributing the material yand vmixing the same by reason of such rotation. i The rotation of the cones 56 has the effect of` centrifugally distributing and mixing the material by causing it to j leave the lower edvevof the cone in a relatively thin `film of uniform thickness.

If desirable sight openings 62 may be provided in .each section for the purpose of obedge 63 of each lopening must be above the The two shafts 54 divide the openings are not essential to the mixer but serving the action of the mixer. In the event I that such openings are' provided the lower b'ottomedge 'of each vof the distributing cones 56 so that material 'will not fiy out through the said openings.

defining an' arc having radius of the spreader for its chord and spreader extending from the center of the spreader to the'ed'ge ,there-- of` whereby material falling on-said spreader,

from asuperposed baie will effect rotation of the spreader, there being a free annular spacevbetu'een the lower edgeof'the spreader and the wall ofthe casing through which material will becentrifugally'discharged.

In testimony wherofl aflix my signature. Y. ROY R. BEER-S. [11. s] l on said shaft concentric therewith and alter- Vnating with the inverted open-ended baffles,

vanes` on the upper surface of each spreader

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