US1038806A - Apparatus for handling concrete. - Google Patents

Description

B.. WELGEQER, APPARATUS ma HANDLING CONCRETE. APPLICATION FILED MAY 26, 1910.

wfu ,'atented. Sept. Ef?, 11912.

WH'NESSES: l l Mmmm, MMG g RUDOLPHVVELCKER) ATTORNEY.

R. WBLGKBR, APPARATUS POR HANDLING CONCRETE.

APPLIOATION rILBD MAY 2e, 1910. I P

Patented Bepi. i J, wm

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1'0 1 `v'()fligu 3. The said-ports are in line, and

through the upright anges' of channels d which are ybolted to the 'beams D and D2. Thebottom of the casing is completed'by a casting or receiving part G having down- ;wardly and inwardly inclined sides. This receiving part is provided at its inner end with. a small port within which is fitted the air-supply pipe o3, and a larger discharge port, K, for dischargingthrough a pipe section L and pipe a, in the direction of arrow i 'uporiinjection of air through the downwardly and rearwardly -beveled vend c1 of the alr-supplypipe, the Vconcrete is driven out, with the air through the port K. Material'may be filled into the casing through j the collar'm and opening H, and the container may have a top plate, I. The'casing will preferably havevmovable concrete-admission. means, 4readily permitting supply of concrete while' still maintaining substantially air-tight the portion of the casing be low said means; thus a container will have a substantially air-tight chamber, W, into which 'the concrete falls, and which may have altapering bottom to guide the concrete toward the discharge port K, The

-movable concretefadmission means, may be one having a plurality of blades and having side plates,lso as to provide a succession of compartments. Itm'ay be mounted on and rotatable with an axle y, andmay itself be made of circular side-plates or disks R and S, and of blades T, T, T2, T3, secured to angle-irons which, in turntare secured to the parts R, S. .As a consequence the blades may be arranged as shown in Fig. 4, in which oase, as 1s well understood, the con- A' crete (supplied through opening H) falls upon thevblade T', accumulating in the compart-ment between the side disks, R, S, until the weight causes a partial rotat-ion of ,the axis sutlicient to bring the top of plate T in position to receive concrete., The continua.- 'tion of the rotation of the device will cause the concrete to drop from the blade T into the casting G. The side plates (a7, as) of the container, are curved, as before mentioned, and sufficiently to have the edges' of the blades, or of air-tight packing (t, t, t2, t3) thereof sweep, for a major portion of their rotation, against such plates a7, as. By this vmeans,the space below the admission device is maintained substantially airasa whole, to the left, the packings t, 2 and t3 will be compressed and the area of blade T will be shortenedwhile that of T3 will be increased. This shifting may be attained by moving the concrete-admission device relatively to the base D. To permit this, I have shown a construction wherein two adjustments are necessary. The first of these comprises the formation of cut away portions all and au in the edgesv of the plates a5 and a", to permit the passage of rods a', a2; 'the second of said adjustments comprises means which permit the extremities of the lower arms m2 m3 of each frame M, to have a slight movement widthwise of 'the base or truck D. In the latter event, cach extremity, O, of the arms, carries a bolt Q, fitting slots in the'channels D D and J (Fig. Upon loosening the nuts carried by these bolts, and upon loosening nuts carried by the upper'tie-rods a and n2, the casting M and the axle y' may be shifted, either forwardly or rearwardly, for a slight distance, the holes a* (Figs. 3 and't) vin the plates v0,5 and a, through which the axle y passes being made larger than the axle for that purpose. After the adjustment has been made all of the nuts are again tightened.

I-Iereinbe'fore, it has been pointed out that the Acompressed air may be supplied intermittently, or in blasts, into the chamber W, of the container. This may be effected in any desired manner, but I prefer that the arms .e shall be operatively controlled byv the rotation of the concrete admission means. To assure this, the rod, Y, may have a hook end V which is engaged successively by each of the arms U of a part rotating in unison with axle y. Any suitable means (not shown) will. return the rod Y, and the latter may be slidably guided in eyesformed in'parts g/s and y.

What I claim is:

1. In an apparatus for handling concrete and the like, the combination of an air tight casing having side walls sloping down-v wardly and inwardly and terminating in an L elongated channel extending lengthwise' .of

the bottom of the casing; an outlet conduit at the exit end of the channel; an air supply pipe at the rear end ofthe channel and so disposed as to deliver a'blast of air lengthwise of the channel; and means above the sloping walls for dropping small masses of concrete upon said walls for direction thereby into said blast of air.

2. In an apparatus for handling concrete and like material, the combination of an air-tightA container adapted to hold highly compressed air therein and having a down- Wardly projecting tapering extension at its gated receiving part secured to the lower lower part; a downwardly narrowed elonlav '= and like material,,thejcombination of anl ing' aI continuation thereof; air supply' moved athigh velocity into the discharge pipe', whereupon the pressure of the. air 1n v the `casing is added'to'- theY momentum of the masses..v V 3. In anr apparatus for'jhandling concrete approximately ecylindrical axially horizontal-casingiprovided with `a hopper like extension on its upper 4partk and a downwardly projecting tapering extension at its lower part; a downwardly vnarrowed elongated cast metal receiving'part secured to the lower part of said taperingextension and forming a continuation thereof; anair supply pipe entering the lower part of one end of the receiving part parallel to the axis thereof; a discharge pipe of much larger diameter than the supply pipe and extending from the opposite end of the receiving part coaxial therewith, a rotatable passing longitudinally through the casing, and a rotatable device formed of blades and compressible paclings mounted on said axle and fitting snugly within the casing.

1l. In an apparatus for handling concrete and the like, the combination of a substantially cylindrical air-tight casing having an outlet near the bottom thereof, and having a central opening in each end thereof; means for supplying fluid under pressure to said casing; horizontally adj ustabl'y supported bearings in line with said central openings, an axle passing through said bearings and openings; a rotatable device formed of compressible rotatable blades mounted on said axle and fitting in said casing.

5. Anapparatus comprising an approximately cylindrical air-tight casing having inlet and outlet parts and having itsi ends each provided with a central opening, horizontal pieces `supported adjacent to the ends of the casing; bearing supports adjustably mounted on the horizontal pieces respectively and eachhaving its bearing adjacent to one of said central openings; an axle passing 'through the casing, said cent-rai openings and said bearings; and a rotatable device formed of rotatable blades and compressible packings therefor mounted on said axle, said device being adjustable eccentrically of the casing by adjusting the bearing supports on the horizontal pieces.

6. An apparatus comprising an approximately cylindrical oasing provided with an ai. i' i sofsialaiodk Vchanrrei pieces.

atene 'otits Iupper part and having its ends Aeach provided -with-.a central opening and an edge iiange haxfingy cut away portions in the -upper part thereof; anelongating receiving part communicating with .the bottom of the. casing, an air supply pipe 'through the upper endsof `the .respective X-shaped pieces, t the upper bolts passing also through thefcut away portions; Athe lower bolts connecting and. through. the re-i spective channelI pieces and also passing throughthe edge flange;` an axle passing throughthe easing, said central openings and the bearings; and a rotatabledevice formed ot rotatable blades and compressiblel paclzings therefor mounted on said axle; saidl device being` movable eccentrically vof the casing by adjusting the X-shaped castings on the channel pieces and moving the axle in the central openings.

7. An apparatus comprising an approximately cylindrical casing provided With an inlet at one side of its upper part and a downwardly projecting extension at its lower part and having its ends provided with a central opening; and an edge -fiange provided with cutaway portions .in the upper part thereof; an elongated receiving part securedto the lower part ot said extension; a bevel-ended supply pipe entering the lower part of one end of the receiving part; a discharge pipe of larger diameter than the supply pipe extending from the opposite end of the receiving part approximately in line therewith and with the supply pipe; channel pieces disposed at the ends of the casing; X-shaped castings each having its lower ends adjustably secured to the channel pieces and its upper ends adjacent to said cut a tay portions, and each having a central hearing; lower bolts passing through. the opposite channel pieces and through the ends ci.: ile upper bolts passing through the A ends of the X- sluiped member and l meh said cut away portions; an axle pa @trough the feasing, said centrai ej, d said boa rings; and a rotatable dev f lmed of rotatable blades and compressible j )aclings mounted on said axle said device being movable eccentrica-ily of the easing by moving the axle in the central opening by adjust-ing the lower ends or the X-shaoed castings on the 8. In an apparatus for handling #concrete and'the lille, 'a casin having a' .discharge ope'nir'ig, a movable evice for the admission of concrete thereinto and ada ted to maintain theV latter substantially air-tight,

.outlet near the bottom thereof, and havlng a central o ening in each endthereof; means for supp yingruid under vpressure t said casing; 'horizontally adjustably Asupported I bearingsfinline-v'vith said central openings,

an aide` passing through lsaidbearings andv openings, a rotatable device formed' ofcompressible rotatablevblades mounted on said axle and fitting in said casing; and a means operatively connected to 'said rotatable device for at intervals cutting off the supply 10. An apparatus comprismg an approxi- `mately cylindrical air-tight 'casing' having I e casin and a device opg' inlet and outlet parts and having its ends each provided,A with a central opening, horizontal pieces supported adjacent to the ends of the casing; bearing supports adjustably mounted on the horizontal pieces respectively and each having its bearing adjacent to one of said central openings; an axle.

passing through the casing, Asaid central openings and said bearlngs; an air supply p1pe communicating with the casing; a discharge. pipe opposite the air supply pipe; a "rotatable device mounted on said axle for feeding concrete in fro.-t of the air supply",

pipe a cut-oli' device for said air supply`y pipe; and an operative connection between the rotatable device .and the cut-olf device for at intervals cutting oil the supply of' air I to the air supply pipe.v

' v-In testimony whereof, I have signed my nameto this specification 'in the presence of two Ysubscriblng Witnesses.

RUDOLPH WELCKER.

, Witnesses:

WILLIAM H. Buurman,` i ALFRED R.,ANnEBsoN.

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