US2612250A

US2612250A - Discharge chute assembly for concrete mixers or the like

Info

Publication number: US2612250A
Application number: US73685A
Authority: US
Inventors: Louis J Sarosdy
Original assignee: Blaw Knox Co
Current assignee: Blaw Knox Co
Priority date: 1949-01-31
Filing date: 1949-01-31
Publication date: 1952-09-30
Anticipated expiration: 1969-09-30

Description

Sept. 30, 1952 .1. SAROSDY 2,612,250

DISCHARGE CHUTE ASSEMBLY FOR CONCRETE MIXERS OR THE LIKE Filed Jan. 51, 1949 v s Sheets-Sheet 1 INVENTOR P 1952 J. SAROSDY 2,612,250

DISCHARGE CHUTE ASSEMBLY FOR CONCRETE MIXERS OR THE LIKE Filed Jan. 31, 1949 a Sheets-Sheet a 21 0 Fig.4

l H 1i lr n W 55 20- i: 57

I II I I H 22 g' I: E1 25 26 22 L m I INVENTOR L OU/S d. Sarosdy Patented Sept. 30, 1952 U T AT Es PATIENT ornosi CRET MiX'ERs :Louis 'sarosay, f Pittsb Blaw-Knox Company,

-norationof New-Jersey v I I niiisusatie iaiiuary 31,1949, -Seriiil lie. 1838 5 6 Claims; o1i 19a-im f'ihisirivehtiofi relates toa-new discharge zchute fassembly'i'or fc'oncrete mixers or the' like. More iparticulaflv it rlates to 'a removable discharge chute assembly for use with high discharge "type "transit vehicle mixers in which'a gatheringpan main tains its proximate positioning to the-'dis- -charge'spout of the'mixer' irrespective of the 'lib'riizonta1amizvertical angular'ity of a discharge "chute pivot'ed'thereto, and in which the support dependentlyof the *dru'ni so that thespoiu't serves both as a fcharging hopper and as a discharging spout dependent upon the angular position thereof around the axi'sof the drum. Discharge from "'su'cha revolvable dischargespout sometimes may occur before 'it' is in "directly downward position. I This ineahsth'at the material being discharged rtrom the drum begins to ran at some distance awayi-from the'ver'ti'c'al plane through the 'lcne'itirdinal center line of the 'Vehicle. I Moreover, for placement of the material from the mixer it is desirable to "guide the stream 'of material issuing from'the rumtoanv selected point within' an "ar'cof approximately 180 around the 'rear-ofjthe vehicle. i u 4 I He're'tofore', removable discharge chutes have been'used which are rotatable to effect such distribution Sometimes these chutes are-of a single length or of more than one connected length.

Furthermore, provision has-been made to have the upper end of such chutes positioned beneath i'the GischarQe SpOuts of the mixer. However, "flwithe'ach change in slope of said chute thedistance between the 'spout'and the upper end "of ='-"the chu'te' varies "correspondingly. Moreover. "with 'r'evol'vable hop'pe'r spouts, it' is notpractical ftofr'nak'e the' -iipp'erend of such dischargechutes s'umciently wide toFcatchmaterial from "the "spout 'in all of 'the rpositions it may have when some'disch'aie occurs. Still further, wherethe "supporting 'of suchehutes has involved the use "f'c'iPanhXten-siOn"frafiie "attached to the. mixer vegilt-3. fl'i' 'feffs fib'fifdiiisibhfor the 'dischaige "0f ma-t'e'iial b y' the ff'e' 5 fall thereof from the :"spout grallv riveted; .orvweltieri to :ajcrossple' the-frame ofsthe said ;vehicle.:.; -v

aring 48 whichcoengagesga sealing fins urgih l Pal, assign'or to 1 Pittsburgh, Pa., "a oo1'- forconcrete orthelike. haslanintegral. up 0 1 bracketsa 'm to ariischargeispout [9. 33 espout 4-9 is -a revolvable hopper 's'hown in I I con-- OR'THE LIKE A i ,v it into a receiving-conduit or form not come ed to the vehicle WithQutinterference trom'f'said- X tension frame. I v In the present invention these 'diflicui overcome. "Ir-respective of the horizon I vertical angularity-of the discharge chute; in an assembly made in accordance withv this invention, thereceiving end of the discharge assembly remains beneath and; inthe samefproxirnate'. vertical' relationship tc the discharge spoutilo'ithe mixer; This istrue whether is revolvable-or not, Moreoviy-the-structurenf this invention is somade that inateriahca'n be discharged by free fall forms or receptacles notattachedtof,thejmiiter or its frame. Other objects anti advantages oiithis invention will appear- ;f-rorn the roiiowingiu ssnption and from the iollowingtcirawings, which are illustrativeonly, inwhich V v Figure :1 is aviewin f eva't'ionoi .a, (11 c the -assembly-macle in accordance with this in ention and mounted on; the back ofahigh'd rEe type of transit eencrete miger;

Figure 2 is an enl rged vi w ofthe shown in Figure 1 which illustra'te' vlines the traveling position of the supportgfor the arcuate gathering pan andfitheldi'sch rge chute when the l-atter are removed;' I Figure 31s a viewin elevation takenal I i Fi-gure iis a vie v r 1 viv line V-V of Figure Referring to iF iguress I I transit mixer;

'a high discharge tynev o ing ring --l I which ride's I on-i'rdlle'r' lbeja'rings shown) :journaleci in upperirameinembrs l2.- Upper-f-rame membersl-Z are an offset. con a- =tion;'o'f lower vertical frameirnembers l3 ntelongitud-inal frame me'mbers 15 111;

members "12, I3, l4 and is constituteapor The upper end of drum I0 --sliclesaround ring ifi infirmer-locked I I relation thereto. sealing ring l -T."is amXe iby e epositionin soligislines in Eigureul iandin ch theidischa'rge spoilt directly- I into, conduits, v

. hicle onwhich drum Illis mounted.

f A hollow shaft 31, has a bearing flange 38 adapted to be rotatably supported in the vertical socket or sleeve 36 when support 25 is in the position shown infFigure l.

. structural features are not specific elements of the new discharge assembly of this invention.

A cylindrical cross member 29 horizontally spans the distance between the two vertical frame members l3. These frame members |3 also have weldedthereto two extension brackets 2|, suitably shape'd'for: strength and rigidity. Plates 22 comprising the opposed vertical surfaces of brackets 2| are drilled respectively and in registry at 23 adjacent the lower edge thereof and at 24 adjacent the upper edge thereof. A pyramidal support 25 has two integral vertical supporting arms 26 and connecting bottom and

top plates

21 and 28 respectively which complete the support 25. The inner ends of arms 26 fit between plates '22 and are drilled on centers corresponding to the centers of openings, 23 and 24 respectively. A sleeve 29 connects the lower pair of openings insupport 25 to which it is welded.

similar sleeve 30 connects the upper pair of openings in support 25. j A, pin' 3| is assembled through sleeve 29 and journaled in openings 23 whereit is held in lateral position by cotter pins 3 2 W ashers 33 -space support 25 inthe center of :flthe distance between plates 22. Another similar pin-34is assembled through sleeve 39 and is journaled in openings 24. Cotter pins 35 maintain pin 34 in place. The fit of pin 34 is sufiicientlyeasy'sothat it can readily bewithdrawn upon the removal of one of the cotter pins'35. At the outer end of support 25 a socket 36 is welded.

' The "axis of socket 36 is vertical when support 25 is in the position shown in Figure 1 with pins j 3 I andl341in place.

. When pin 34 is withdrawn, support 25 can be swun upwardlyand toward drum n until socket 35'rests against cross member 20 as illustrated by chain lines in Figure 2. In this latter position,

' 7 support 25 and socket 36 are wholly removed from beneath discharge spout |9 so that any material :i'discha'rged therefrom under such circumstances will fall freely into a receiving conduit, form, hopper or other receptacle not connected with the ve- In such support, the underside of fiange 38 bears against the upper an- 3 nular edge of socket 36. Welded to the upper side of flange 38 are two supporting webs39 which msupportyanarcuate funnel 49. -Webs 39 are welded or otherwise affixed to funnel 40. Funnel 49.serve's as a gathering pan for discharge spout i9 and is somewhat offset toward drum IU of the mixer from the vertical axis of hollow shaft 31. .Theouter upper perimeter or edge 4| of funnel 49 is substantially circular and in a horizontal plane.

bowl.-

. V V Webs 39 aredrilled at 45 adjacent lower edge 42 catch all discharge from spout l9 even if such The lower dischargefedg'e 42 isconnected to the -upperedge 4| by the curved substantially single surface43 which terminates in a vertical portion 4 4.at .the rear of the funnel. The forward face jof funnel. is open so that this funnel which is substantially arcuate or fan shaped when viewed in plan is somewhat like a half of a semispherical .4 discharge should commence before the spout reaches the full discharge position shown in Figure 1. This is so irrespective of the angular horizontal position of gathering pan 40.

A plate 49' is welded to the underside of upper end 48. Two ears 59 integral with plate 49' span the distance between the-outer sides'of webs 39 and are drilled in registry with openings 45. A hinge-pin 5| having a head 52 and a retaining chain 53 can be inserted respectively through ears 50, openings 45 and sleeve 46 to hold discharge chute 41in fixed position relative any horizontal rotation of pan 49. A cotter pin inserted through hole 54 prevents the removal of hinge-pin 5| until desired.-

The slope of dischargechute 41 can, however, be varied for eachhorizontal angular position of funnel 40. Reces'ses or notches 55 above pivot bearing openings 45 provide clearance for the upper edge of chute 4! for the various slopes which chute 4'! may be caused to assumeJ-R'I'his upper edge of upper end 4871s beneath and in overlapping relation to loweredge 42 of gathering pan 40.

A plate 56 is welded to the underside of chute 41 intermediate the ends thereof as illustratedin Figures 1 and 2. This plate has a bracket 51 extending toward drum IU of the mixer forpivotal connection at 58 with a brace 59. Pivotal connection 58 which is journaled in bracket 51 and held in position by cotter pins (not shown) .or other suitable means, can be disassembled if it is desirable to separate brace 59 from chute 41 for transportation or repair purposes. Adjacent the inner end of brace 59 a series of :holes Elliare drilled at spaced intervals. These holes cooperate in fixing the position of brace 59 relative to shaft 31 to determine the slope of chute 41. 1

The lower end of hollow shaft 31 is slotted at 6| upwardly from the bottom along diametrically opposed longitudinal'portions of the shaft walls. The width of the slots 6| is sufilcientto accommodate the diameter of brace 59 as shown in Figure 6. Two guide bars 62 are riveted to shaft 31 and extend across it in a vertical plane normalto the plane connecting slots 6|. Lower guide 'bar 62 may also be made removable if required to facilitate the disengagement of brace 59 andslots 9| A pin 63 having an enlarged head 64 is fastened to the lower end of shaft 31 by a retaining chain 65. The inner end of brace 59 is slid throughslot 5| between guide bars 62 until the desired slope of chute 41 is obtained. To hold discharge chute 41 in that position' pin 63 is inserted through the adjacent hole 60 on theouter side of shaft 31- as shown in Figures 1 and 2 and thus serves as a stop to maintain chute 41 in its predetermined desired sloping position. A cotter pin can be inserted through a hole 66 at the lower end ofpin 63'to lock chute 41 in position."

Intermediate the ends of shaft 31 a series of radial holes 61 are drilled completely through the shaft, as shown in Figure' fi. These holes have their centers on the same horizontal plane when the shaft is in operative position. A further pair of radial holes 68 is drilled completely through sleeve 36 in the same plane when in operative position as the plane in which holes 61. he. Holes 68 are also offset from the vertical 'centerline horizontal angular positions afforded by the numi ber of pairs of diametrically opposite holes 61in shaft 31. In operation, key 69is inserted through holes 68 and a registering pair of holes S las illustrated afiai I amazes eendsrsoriahat eit.cannot become-{disengaged Ef-rom skey 59,.3A'retainingnhain I liiswelded to tlreqhead :ilrey when-itiisremovedfor- "reassembly Tofithesdisdb'har'ge mechanismor. iorsiiotatioiiibf theidisdharge mechanism to a different horizontal angular position around the approximate semicircle to the rear of the mixer in which distribution can be made as a practical matter by chute 41. An outstanding ing 12 is welded to sleeve 36 and has an opening 13 immediately below the axis of rivet 16 when key 69 is in inserted position. Opening 13 is in such proximate relation to rivet Ill that the lower end thereof passes through the said opening and holds key 69 against any dislodgment during operation which might otherwise be caused by vibration or the jarring of the associated machinery and mechanism.

Thus, arcuate gathering pan 4! retains its proximate position beneath discharge spout IQ for every horizontal angular position of shaft 31. Moreover, for each such horizontal angular position discharge chute 4! can be caused to assume a variety of slopes dependent on the particular point of distribution to 49 of chute 41. This lower end terminates in a coupling collar 14 having laterally outwardly extending trunnion pins 15 to which a chute extension can be attached in a conventional manner. The slope of chute 41 is, of course, determined by the stop position eilected by pin 63 against shaft 31. When it is desired to have material discharged from spout 19 fall directly down into a receiving conduit or other receiving member not connected to the vehicle on which drum I is mounted and without loss of material by splattering or flowing over any portion attached to that vehicle, pin is withdrawn and then chute 41 and brace 59 are removed. Then pan 40 is turned after the withdrawal of key 68 so that shaft 31 can be lifted out of sleeve 36. Pin 34 is then removed and support 25 and socket 36 are swung toward frame members l3 until they come to rest in the position shown in Figure 2. These various members are light enough to be manipulated in this way.

Although I have illustrated and described but a preferred embodiment of the invention, itwill be recognized that changes in the details of construction disclosed may be made Without departing from thespirit of the invention or the scope of the appended claims.

I claim:

1. In a discharge assembly for concrete mixers or the like having a discharge spout in combination, agathering pan adapted to be positioned beneath said spout, said pan having an upper arcuate edge and a lower discharge edge, said edges being connected by a surface generally sloping toward said discharge edge,. a generally vertical shaft connected substantially solely to the outside of said pan, asocket for rotatably supporting said shaft, said socket being connected to said concrete mixer or the like, said shaft and socket enabling said pan to be horizontally rotatedwhile remaining beneath said spout, and a chute pivotally connected to said pan adjacent saiddischarge edge. 2. In a discharge assembly forconcrete mixers or the like having a discharge spout, in combination, -a gathering pan adapted to be positioned beneath said spout, said pan having an upper be reached by lower end i -arcuatearoiiter =edge-anli ailower discharge edge; Ssa'id' edgeslibeing-{connectedby va'is "generally '.sloping {towardsaid a senarg e "e, genera-11yvertical *s'haft connectdfsub's solely to the" outside or saidfpan; a -seeks tatablyjsup'porting said shaf sa dso'ck'et being connectedto said-concrete mixer or the-like, and a chute pivotallyconnected tosaid pan about a horizontal axisandextending beneath at least 11 0 the lower portion -of said:discharge' edge.=

'3. In a discharge assembly for concrete mixers or the like having a discharge spout, in combination, a gathering pan adapted to be positioned beneath said spout, said pan having an upper arcuate outer edge and a lower discharge inner edge, said edges being connected by a generally continuous curved surface sloping toward said discharge edge, at least one generally vertical web rigidly connected substantially solely to the underside of said. pan, a generally vertical shaft rigidly connected to said web below said pan, a socket for rotatably supporting said shaft, said socket being pivotally connected to said con-: crete mixer or the like, and a chute pivotally connected to said web about a horizontal axis and extending beneath at least the lower portion of said discharge edge.

4. In a discharge assembly for concrete mixers or the like having a discharge spout, in combination, a gathering pan adapted to bepositioned beneath said spout, said pan having an upper arcuate edge and a lower discharge edge, said edges being connected by a surface generally sloping toward said discharge edge, a generally vertical shaft connected substantially solely to the outside of said pan, a socket for rotatably supporting said shaft, said socket being connected to said con crete mixer or the like, said shaft being recessed in the lower portion thereof extending below said socket, a chute pivotally connected to said pan and extending beneath at least the lower portion of said discharge edge, a brace pivotally connected to the underside of said chute, the other end of said brace extending through said recess, and means for varying the length of said brace between said shaft and said chute.

5. In a discharge assembly for concrete mixers or the like having a discharge spout, in combina-' tion, a gathering pan adapted to be positioned beneath said spout, said pan having anupper arcuate edge and a lower discharge edge, said edges being connected by a surface generally 2 sloping toward said discharge edge, a generally vertical shaft connected solely to the underside of said pan, a socket for rotatably supporting said shaft, a polyhedral support rigidly connected to said socket, said support being pivotally connected to said concrete mixer or the like about a horizontal axis to enable it to be vertically swung from beneath said spout when said pan is not being used.

6. In a discharge assembly for concrete mixers or the like having a discharge spout, in combination, a gathering pan adapted to be positioned beneath said spout, said pan having an upper arcuate outer edge and a lower discharge inner edge, said edges being connected by a surface generally sloping toward said discharge edge, a generally vertical shaft connected substantially solely to the underside of said pan, a socket for rotatably supporting said shaft, keying means for engaging said socket and shaft to fix said pan in the horizontal position to which it may be swung, a polyhedral support rigidly connected to said socket, and spaced generally vertical -;bra.ckets rigidly connected to said concrete mixer or the like and extending generally in the direc- -tion*..0f said spout, said support being pivotally connected to said brackets about a. horizontal axis .to enable it to be' vertically swung from beneath 5 said spout when said pan is not being used.

. I LOUIS J. SAROSDY.

REFERENCES CITED The following references file of this patent:

8 I--UNI'IED4STATES PATENTS Number 2,488,292 are of record in the 10 V 7 Date Name Haywood Nov; 21,1901 Robb etal. Dec. 24,:1918 I Mosby- Aug. 31, 1920 Mandt Feb. 6, 1934 Rybeck Jan. 28;1936 Draeger '.'"Sept. 30, 1941 Hilkemeier Nov. 15, 1949