US890641A - Concrete-mixing apparatus. - Google Patents

Description

PATEL TED JUIEE 16, 1908.

P. G. HAINS, SE. GUNGRET E MIXING APPARATUS.

APPLIGATIOIF FILED MAR. 31, 1908.

2 SHEBTS-3HEET l.

172 yen/Z 07: 2e? 6. Haz ng, 6?.

MZinesses PETER O. HAINS, SR., OF WASHINGTON, DISTRICT OF COLUMBIA.

CONCRETE-MIXING APPARATIJS.

Application filed March 31, 1908. Serial is. 424,322.

' I T all whom it may concern:

Be it known that 1, PETER C. Hams, Sr., a citizen of the United States, residing at Washington, District of Columbia, have invented an Improvement in Concrete-Mixing Apparatus, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts. I

The invention to be hereinafter described relates to concrete mixing and handling ap paratus, whereby the constituent elements composing the mixture may be brought into proper relation and the product deposited in the desired location, the present invention being a further development of the device disclosed in Patent No. 818,929, dated April 24, 1906, to which reference may be had.

In the patent referred to, a series of substantially conical hoppers were connected together in such manner that they could be nested one within the other or successively raised from such nested relation, each of the upper hoppers being provided with a door hung upon arms and operated by a connection to the next lower hopper to open said door as the hopper was raised from the one below it.

The present invention aims to simplify the door construction particularly with reference to its opening and closing movements, and in other respects to modify the apparatus of said patent, all as will hereinafter more fully appear.

In the drawings: Figure 1 is a side elevation of the apparatus showing the series of hoppers raised successively from their nested position and the material passing into the lower hopper; Fig. 2 is a partial sectionand side elevation, of the hoppers illustrating their relation in nested position, the top hopper of the series being charged with the materials to be mixed: Fig. 3 is a bottom view of the lower hopper, showing the door mounting thereof; Fig. 4 is a sectional detail representing the-relation of the walls of the hoppers and the door operating fins, the fin of the upper door resting on the top of the lower door; and Fig. 5 is a bottoin view of one of the doors of an upper hopper and its connection with thelugs of the door ring or flange.

Referring to Fig. 1, which shows one embodiment of the present invention, A, A, A

Specification of Letters Patent.

and A represent a series of ho pers or fejcptacles of any desired or pre erred forni'or Patented .l'ime 16,1908.

number adapted to be nested togetherfasjin dicated in Fig. 2. Preferably, these he" pers or receptacles are of general conical siape; and each has a bottom opening a, through which the materials to be mixed may pass. as

will hereinafter ap ear.

The receptacle 1 may be termed the top hopper is preferably provided with an upwardly extended flange or ring portion a to give additional strength and increase its capacity. To the top hoppenA is connected any usual or dewhich for identificationv sired form of lifting bail or sling b to which at b may be connected the derrick-lift b These parts are appropriately constructed to support the weight not only of the top hopper and contained material, as shown in Fig. '2. but of all thehoppers, as will appear.

As in the patent referre 'to, the several ho pers of the series are' connected together, t e con necting element in the present form of the invention being shown as chains 0, secured to the top hopper at suitable points, as c, and provided at intervals of t eir length with rings 0 which engage pins or studs secured to the lower hoppers A and A and have their lower ends secured to the bottom hopper, as will be explained.

Each of the upper ho pers A, A, and A is preferably provided wit 1 an angle iron or rib extending along its outer surface, as shown,

said angle iron or rib being secured to its" hopper by a series of rivets or bolts d.

Exterior to the bottom opening a of each' of the hoppers there is secured a member '6,"

which, for identification, may be known .as"

the bottom ring.

This ring e may be formed of any suitable material, preferably castmetal; and is secured about t which on the inner surface of the hopper, are

countersunk, as shown, to present a'snilioth V ewing :Fig; "4." it

e outer surface I of the hopper adjacent the opening (thy su'1t-" able bolts or rivets e, Flg. 4, the "heads of bottom of the hopper. From this construc l tion, it will be noted that the lower circular edge e of the bottomring thus presents'e sharp edge for the bottom door, as will now iecting from it the lugs e whic be: explained. The bottom I ring serve as a tinge supporjtyfor the bottom door.

. The bottom door of each of the upper hoppers consists of twb'semi-citrcrilar parts, a bottom view of one of which .is shown in Big. 5. Azhalfdoor, as. indicated in Fig. 5, con-' sir of a door plate f which is somewhat lar er than. the bottom opening of the hopper formed by the circular edge e of the bottom ring, so that the door plate f will extend over and form a close joint with the edge of-the up or ring, as illustrated by the dotted and ful lines in Fig. 5'.

Theunder surface of each of the semi-circular plates or. doors f has secured thereto an angle iron f said angle iron preferably being of the double flanged type and its brid ing wall being secured to the bottom of the oor late f by suitable rivets or bolts f Fig; 5.

'buitably secured by bolts or rivets. f to the downwardly extending portions of'the angle iron f, are the door operating members 9.

These door operating members g preferably 125 consist of flat plates, one being secured to each of the downturnedflanges of the an le iron f and having upwardly andbackwar'dly extending portions g which serve as one member of. a hinged joint connecting the *tal, the pur ose being that when the hoppers doors to the bottom ring.- As oneforin of such hinged connection, and as shown 'in Figs. '4; and 5, a suitable rivet or bolt 9 passes through suitable holes formed in the proj ecting portions 9 of the door operating mem 35 bers and-similar holes in. the rojecting lugs .e of the bottom ring, all as est shown. in Figs. 4. and 5.

The door operating members 9 have their .outer edges .9 curved, as shown in Fig. 4,

andltheir lower edges substantially horizoncome toget er in nesting position, the 1nclined' or. curved portion 9 the door operating members 9 will first contact with the v inclined surface or inner wall of the next lower hopper, thereby causing the doors to be turned on their hinges into closing position. When in closing position, as indicated in Fig. 4, the door operating members g rest by their inclined in an upward direction, so thatthis in clined edge or wall of the door closing member, coming in contact with the inclined interior surface of its other next lower hopper as the hpippers are nested, will assist in bring lng tl e '0 e has pro- -1S secured, said link h forming or into closing position and main-- tam t' in such pcsition, and as the hoppers are successively arranged one from the. other by the derrick-lift and the co'nnectin the inclined wall g will ride along the lower edge of the next adjacent hopper beneath to effect a gradualo [string of the doors'as the hoppers are move to their full separated position, as defined by the connectin chains 0.

It will be obvious to-those skil ed in the art, of course, that the door operating members g, while of the preferred character hereinbefore described, may, nevertheless, be changed either in form or general character of construction, or maybe secured to the bottom of their respective doors by means other than that herein specifically set forth in this special-embodiment of the invention, the essentials being that these door operating members will serve to automatically close the doors of the free hop ers asthey are brought together into neste osition, and will rest upon a support beneat such as the top of the door of the next lower hopper, against the inclined surface of the hopper itself, and as the hoppers are raised from nested position, will ra'dually allow the doors" to open automatica ly, such automatic operation being effected without special operating devices, as heretofore used.

The lower hopper A is preferably provided with three sup ort-ing members or legs h, which may be of any usual construction, but which are herein shown as formed of metal straps having a vertical portion terminating at its upper end in an eye, to which a link h the connection for the lower end of-the chains 0 with the lower hopper, indicated in Fig. 1. These 0 chains legs or suppprting members it are also bent to" provide a bearing portion it against the outer surface of the lower hopper, and a bracing portion [t connecting the said portion h with the lower or supporting portion of the-leg, all

as indicated in F'ig. 1.

Secured to one of thesupportin legs h is a plate 71 extending transversely tliereof, to which is pivotally connected at i handles or operating'members i for the doors is of the lower hopper. The doors is of'the lower hopper are of substantially the same shape and contour as the doors f of the upper hoppers but instead of swinging upon pivotal connections as do the doors of the upper hoppers,

the doors 7c of the lower hopper rest upon one of the handles or operating members i", hereinbefore described, In order to sup ort these doorsin their closingposition an to relieve the hinged COIIIIGCUOILSWI', of the handles oroperating members 17, of undue strain, the door operating endsofthe handles 11 restupon' a transverse supporting member P, the ends of which are securedat it t0:.tl1e legs h of the lower hoppers. From; the COD.-

struction described, it will be noted that the lower doors can be moved from their closed position, as shown by full lines in Fi 3; to their open position, shown by dotted ines of one of the doors, by merely moving its operating handle i The top hopper is adapted toseatwithin it and have seated over its bottom opening a preliminary mixer mwhich is or may be substantially as shown and described in the patent hereinbefore referred to, and needs no further description here. I In operating this device, the hoppers are} first brought together and nested, as indicated in Fig. 2, the flanges d of the upper hoppers respectively resting u on the similar surface of the next adjacent ower hopper, to thereby properly support and position the hoppers with respect to each other. In this position, as already noted, the door operate mg members 9 will have closed the doors of the up er hoppers and will hold them closed 20 prefer-til) the next adjacent lower door. The doors of the lower hopper will have been closed by their operating handles and the preliminary mixing device m Will be seated as indicated in Fig. 2. With the hop ers in this position, the desired quantity oi cement is first placed in the upper hopper, over this is then placed the requisite quantity of sand p, and upon this is scattered the desired quantity of cracked stone Q, a suitable amount of water being then properly scattered over the entire top surface of the stone. The derrick-hoist b is then raised which first lifts the preliminary mixing device m from its seat and drags it up through the materials from position shown in Fig. 2 to that shown in Fig. 1. The derrick-hoist I) being then straightened out taut, the top hoppin 'fi' is iirst raisin, and as it leaves the next adjacent lower hopper, the door operating members 9 will ride over the top surface of the door of the lower hopper and along? the lower portion of the bottom opening of? said next lower hopper, thereby permitting; the contents of the upper hopper connectingj chains 0 continueto rise, the hopper A will! he lifted with the result that its doors will ,be gradually opened and the con-- tents receijved by it-from the top hopper be allowed tojfall into the next adjacent lower hopper. his action of the successive hoppers will cpntinue until the bottom hop or is reached, at which time the materialwilliave been thoroughly mixed and the boom of the derrick, if used, can swing the entire mixing ,device into position where the concrete is to .ib'e used, whereupon the door operating hanfdles t of, the lower hopper can be opened any 5 amount desired and the material be allowed. to fall to place. I I claim:

1. In a concrete mixing and handling aparatus, the combination of a plurality of iioppers having bottom openings and adaptly by resting upon the top surface of to fall intiij the next lower hopper. As the ed to be nested one within the other, means for connecting the stud hoppers in series to permit them to be success vely raised from their nested position, doors for the bottom. openings ot said hoppers, and means carried by and projecting from the doors of the up; per hoppers for contacting with a part pertaining to the hopper beneath for closing said doors as the hoppers are nested together.

2. In a. concrete mixing and handling apparatus, the combination of a plurality of fins secured to the doors of the upper hoppers for engaging a part of the next lower hopper, and serving to close said doors as the hoppers are nested together.

3. In a concrete mixing and handling apparatus, the combination of a plurality of hoppers having bottom openings and adapted to be nested one within the other, means for connecting said hoppers in series to permit/ them to be successively raised from their nested position, doors hinged to one side of the bottom openings of the upper hoppers, and door operating fins secured to said doors for engaging a part of the next lower hopper and serving to close said doors as the hoppers are nested together.

In a concrete mixing and handling apparatus, the combination of a plurality of hoppers having bottom openings and adapted n sted one Within the other, means for connecting said hoppers in series to permit them be successively raised from their nested position, a bottom ring secured about the bottom opening of each of said hoppers, and a bottom closing door hinged to each of the rings of-the upper hoppers, and means to close said doors as the hoppers are nested.

In a concrete mixing and handling ap para-tits, the combination of a plurality of hoppers having bottom openings and adapted to be nested one within the other, means for connecting said hoppers in series to permit them to be successively raised from their nested position, swinging doors for closing the bottom openings .of theupper hoppers, said. doors being adapted to open automatii ally as the hoppers are successively raised, and door operating fins secured to the bottom of each of said doors to close the same when the hoppers are nested.

6. In aconcrete mixing and. handling apparatus, the combination of a plurality of hoppers having bottom openings and adapted to be nested one within the other, means for connecting the said hoppers in series to permit their; to besuccessively raiser. from their nested position, doors for closing the 4 Y soccer bottom 0 enings of said hoppers, and angle 1 name to'this specification, in the presence of irons or anges secured to the outer surface two subscribing Witnesses. of each of the upper hoppers to contact with W the interior of the hopper beneath to sup- BLER 5 port the upper hoppers when they are nest Witnesses:

ed together. EDWARD H. JONES, 1 In testimony whereof, I have si med my CLARENCE Rt Dix.

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