US1463691A - Sand-handling apparatus - Google Patents

Description

Jill 31,1923.

1,463,691 J. GRUNT SAND HANDLING APPARATUS Fi led Jan. 6,1922 A s Sheets-Sheet 1 July 31, 1923.

J. GRUNT SAND HANDLING APPARATUS Filed Jan. 6, 1922 e Sheets-Sheet 2 July 31,1923.

' J. 'GRUNT SAND HANDLING APPARATUS 6 Sheets-Sheet 3 I Filed Jan. 6, 1922 aMeM Eo'c Jaagv/v July 31, 1923.

SAND HANDLI NG APPARATUS J. GRUN Filed Jan. 6, 1922 6 Sheets-Sheet 4 July 31, 1923. 1,463,691

J.- GRUNT SAND HANDLING APPARATUS Fi led Jan. 6. 1922 e SheetsSheet 5 awve'wltoz rfoesa vh Gran? J. GRUNT SAND HANDLING APPARATUS ,July 31, 1923. 1,463,691

Filed Jan. 6, 1922 v 6 Sheets-Sheet 6 amen 6oz (70.; 0,14% Q'rani Patented July 31, 1923.

uni-rener Josnm: Gemini. or CLEVELAND, onto.

sannfie mme iran rvs-ic Application-filed January 6, 1922 SerialNo. 527,491. a

To all'ioh'om'it may concern,

Be itknown that 1, JosEPH- GRUNT, a cit;-

izen of the UnitedjlStates of America; resid ing atClevelandin the county ofCuyah oga and State of'Ohio, have invented certain new and useful Improvements in"S'a nd Handling Apparatus, of which the follow ing is a specification.

I This invention relates to certain new, and useful improvements in sandhandling appa-' rains for metal foundries and-'hasiparticlilar reference to ,the provision] of cooperative devices for scooping sand continuously from apile anddelWering,the same to a sifting apparatus so that thej sifted sand" will be delivered to; an gelevatingconveyor and from thence to delivery chutes associated with spouts through; which the material passes f r li a' amll'mo sfi An object offtheinvention is to provide means for continuously. scooping the sand fromapile and d'elivering the sarneto a sift,- ing apparatus, ;which,1neans is Y mounted" so as to effectively operate upon a comparatively large 1 pile.

Another objectoffthe inventionis to provi de a} sand} handling device for metal foundries of generally simplified; and improved construction; i

Viththe. above general objects in view, and others that willappear asthienature ofthe invention is better understood; the same consists in the novellform, combination and'arrangement of parts hereinafter more fully described in connection withthe accompany.- ing. drawings, in which like reference; char acters indicate similar partsthroughout the view-sf 1 1n the drawings.

Figure 1 is a sideelevational view ofa sand handling devicec'onstructed in accordance withthe present invention Figure 2 is a horizontal sectional view takensubstantially u'pojnline 1 15-11 of Fig.- ure :1'.

Eieurefi a V ragmentary v r ical io li ewken ubstantia y pon i III-$1151, of Figure I,

ure: ity s a iew simil r. QFigLU-" 131011 linelIFZ-rIV of Figure-7,1, "secti na Vi w en central longitudinal; sectional view of the ure 6,

' device show-nin Figure land--drawn on'a larger scale; V

Figure? is an enlargedfragmentaryde tailview-show-ingthe pivotal connection of the-in ner -end of the-scoopihgdeviee with the frame-of" the sand handling-apparatus;

Figure Sis afragmentary viewpartly in sect-iono'f one of the mold 1 filling spouts? and adjacentparts, i

Figure 9 is a sectional fragmentary -view showing the forward end o-f*tlie scooping apparatus and illustrating one of the scoops further advanced than illustrated in Fig;

FigurelO is a. view similar to'F ig-ureeQ withthe scoop-still further advanced,

Figure 11 is av-iew similar-to E-igurealo withthe scoop advanced slightly further than in Figure 10 towardiduinping position, and

Figure 1.2 is a view similar to Figure-11 showing the scoop in-dumpingposition.

Referring more in i detail to J the several views, the invention preferably embodiesia platform 5 having a plurality of" uprights 6 near one end thereof which '1 arerigidly connected and mounted soas to for-ru n frame for an upright tioned elevating conveyor which L preferably includes apair of spaced chains: 7 which pass around sprocketwheels 8' which .are

transversely. -p osi suitably fixedi upon a longitudinally an 7 are pivoted; each bucket 14 being? provided with a pair of upwardlyextending I hooks 15 arrangedto; engagean adj acent cross bar IG V whieh connectsthe chain-a7 ne ar each bucket whereby said buckets/are 1 allowed:- itomtilt backward-1y when inelevated dump ing-Ppos'ition as shown-- 1I1 Flgl114 butare prevente' fronitilt-i-ng in' the opposite direction when operativelydisposed to scoop s'a-nd-ifromg-the hopper- 12? as --shown in- Figure: Y Betweenj d An inclined chute-52 issuitably supported between the vertical strands of the-chains?- of 'the e'levating conveyor so that its inner end'is highest; and this higher inner end of the chute 52 is provlded with a foraminous bottom 53 situated to-have the contents of .the scoop 26 dumped thereon, while theremaining portion ofthe bottom of the chute 52 is iinperforate." As shown clearly in Figures land-2 the portion of the chute 52 whichis provided with the foraminousbottom is enlarged and is provided witha lateral arm 54, the outer end Iof which is pivotally engaged by another arm 55 fastened to ailongitudinally arranged shaft=56 which is suitably ournaledin" a horizontal position to extend alongside of the elevating conveyor. The portion of the shaft 56 to which the arm- 55 is attached is offset to provide a-crank 57 and asprocket wheel58 is secured upon theother end of said shaftr56 in line with a larger sprocket wheel 59 that is fastened upon the foot shaft 9 of the elevatmotion ofshaft' 9 is transmitted toishaft 56 andthrough the medium of the -cranl: 57 and arms 5& and 55, the chute-52 wis verticallyvibrated for causing the finer f nous bottom hopper 12 while the larger particles are" ing conyeyor while a chain 60 passes around thesprocket wheels 58 and 59 so that rotary the particlesto be sifted through the foraini- 53 onto the inclined wall of the caused totra'vel down the chute to its lower end and thencfrom the chute to a desired point of deposit such as in a receptacle properly placed'for this purpose. -The" sand sifted through the foraminous bottom 53 will pass downwardly inposition tobe engagcd by the scrapers 19 and the buckets'M of the-elevating conveyor.

iii beam 61 is suitably supported at each side of the beam/ 26v so that said beams 61' are parallel with the beam 26 andslightly lower whereby oppositely inclined chutes '62 are properly supported by sa1d beams 26 and 61 inwarcilyof the elevating conveyor so that adjacent higher ends of the chutes 62 are end to end and the chutes extend transversely of the machine as shownin Figure 5. A transverse chute 63 is also supported in an inclined positionwith its higher 1 end between the strands of the chains 7 of the elevating conveyor. directlyibeneath the head shaft 11 ofsaidconveyor andinlposition to receive the contents of the buckets 1% as the latter areiinverted, and the lower end of the chute 63 is positionedto discharge onto the. chutes 62 asishow'n clearly in-Figure 1. The shaftllextends inwardlyand above the chutes 62 and has a large spur .{rear 64: fastened uponthe inner end, thereof which is in mesh .,witl1= a sspur-ypinion: 65

that :isi-fastcneduponthe power shaft 66 of a motor 6.7,snpportedbya suitable-bracket 63 carried by a a trameiiplate 169:;ofthesmachine. wA crank shaft 7 Ois supported-.bythe "frame plate 69 and anOtheriframeTplate-f71 parallel ."therewith,v and .i said; crankeishaft170 has a pinion 72; upon one end thereof-in mesh with the pinion 65.

At 7, the opposite side of the gear 64:;is another crank shaft 7 73 journaledi in the plates 69and 71-:a-nd

having a pinion 7 t'securedon. one end-thereof to ineshwit-h the gear 164. Eachcrank shaft 70 and ,7 3 has apairiofangulararins 75 pivoted thereon in spaced parallelrelation with the shorter portionsof said angular arms vertical and depending towardthe chutes 62 as seen inFigure 5, the, longer portions of said arms 75 extending laterally outwardlywithin the adjacent chute-62 as shown in Figure 1. These longer portions of the angular arms 75 are connected atsuitable intervals by transverse verticalplates '76ft1IlCl the extremefouter end portionsof the horizontal, members of the arms 75Hsl'idably rest upon a roller 77 journaled on an {upstanding frame 78 which is of inverted U- 1 shape and which hasthe free endiportions of itslegs ,outturnedx to provide pivots upon which theupperen'd of a fillingspout -7 9 is swingingly mounted. The legs oftheframe V travelling of the lower-spans of the chains 31 and as the scoops '36 move therewith the sand is caused to be scooped from tl16:13lttform 5 and delivered onto the foraminous bottom 53 of thechute52. The motor 67 causes travelling movement of the chains 7 of the elevatingconveyorso thatithe strands ofsaid chainswhich are at the right/in Figure 3 move downwardly for causing the" buckets l lto engage the sand inthe hopper '12 and to-elevate said sand above the chute 63, the sand-being,delivered into the hopper l2 throughtheforaminous bottom 53 while i the larger particles suchas stones will travel downthe' chute 52 and off of the lower end thereof. Just-prior to theqengagementof 1 each bucket, 14 withthez'sandinthe hopper I12 said sandis-heapedby a scrapenl9 i-for effectively filling the ibucLet- 14c andi when said .bu'cketZ reaches the upper :shaft 11 {and then continuesto move, it-is invertecl;to de- Y liverIitsi'contentsionto the chute 1V hile this is taking place, the sifting operation is surely: is 10. .-by: reas0 tith shi 105 known means. The motor 42 causes inward i tion of the-chute 52 through the mechanism above described involving the shaft 56, etc. The sand passes down the chute 63 by gravity onto the chutes 62, some of the sand passing down one chute and some down the other and as the crank shafts 70 and 73 are rofated, the ar is 75 are given an orbital movement'so as to first move toward the bottoms of the chutes 62, then outwardly so that the sand is separated into desired quantities and I moved toward the adjacent filling spout 7 9.

The arms 7 then move upwardly out of engagement with the sand and return to their original 1305511110151. This ycle of operation is continuous when the machine is operated and by reason thereof predetermined quantities "of sand are intermittently delivered to the filling spouts. It will, of course, be understood that the scraper plates 76 are normally inoperative as shown in Figure 5 but that when the end sections 80 are caused to swing downv-ardly by a downward pull upon the filling spout-s, said plates 76 will and-appreciated by those skilled in the art.

Minor changes may-be made without departing from the spirit and scope of the invention as claimed. 7 V

What is claimed as new is: I

1. In a sand handling machine of the-class described, a mold 'iilling spout, means to deli erpredetermined quantities of sand to said spout intermittently, sandv sifting mechanism beneath said delivermg means, means to elevate the sifted sand to said e livering means, and scooping mechanism to deliver unsifted sand to the sifting mecha nism.

In a sand handling machine of the class described, a mold filling spout,

spout intermittently, sand sifting mecha nism beneath said delivering means, means to elevate the sifted sand to said delivering means, and scooping mechanism to deliver unsifted sand to the sifting mechanism, said scooping mechanism embodying a frame pivoted at one end upon a vertical axis whereby V the same may operate upon a pile of sand. within a considerable radius.

3. In combination with a mold filling spout and means for intermittently delivering predetermined quantities of sand theretransverse means to deliver predetermined quantlties of sandto said.

to, means to elevate sand to said delivering means including an endless conveyor having a plurality of buckets and scraper members alternately with the buckets and formed to stack the sand in the path of said buckets;

4. In a sand handling device for metal foundries, a sifting mechanism, and scooping mechanism to deliver unsifted sand to said sifting mechanism, said scooping mechanism comprisingapair of spaced parallel endless chains connected at intervals by transverse rods,substantially U-shaped members having legs with portions extending at'an angle to each other and with the intermediate portion of the legs pivotally' engaged with said rods whereby the U-shaped members are mounted for vertical swinging movement, scoops pivotally mounted upon the intermediate portions of the U-shaped members, and means at one end of the scooping mechanism to engage the free ends of the legs of the U-shaped members for causing upward swinging movement of the scoops to a position above the sifting mechanism.

5. In a sand handling device for metal foundries, a sifting mechanism, and scooping mechanism to deliver unsifted sand to said sifting mechanism, said scooping mechanism comprising a pair of spaced parallel endless chains connected atintervals by rods, substantially U-shaped members having legs with portions extending at an angle to each other and with the intermediate portions of the legs pivotally engaged with said rods wherebythe U-shapod members are mounted for vertical swinging movement, scoops pivotally mounted upon the intermediate portions of the U-shaped members, means at one end ofthe scooping mechanism to engage the free ends of the legs of the U-shaped members for causing upward swinging movement of the scoops to a position above the sifting mechanism, means to cause travelling movement of said tilting of the scoops after the latter are raised for dumping the contents of the scoops. I

6. In a sand handling device for 'metal foundries a siftin mechanism and scoon'' ing mechanism to deliver unsifted sand to sald sift-mg mechanism, said scooping mechanism comprising a pair of spaced parallel endless chains connected at intervals by transverse rods, substantially U shaped members having legs with portions extending at an angle to each other and with the intermediate portions of the legs pivotally engaged with said rods whereby the U- shaped members are mountedforvertical swinging movement,- scoops pivotally mounted upon the intermediate portions of the U-shaped members, means at one end of the scooping mechanism to engage the free chains, and cooperating lugs for causing ends of the legs of the U-shaped members for causing upward swinging movement of the scoops to a position above the sitting mechanism, means to cause travelling movement of said chains, and cooperating lugs for causing tilting of the scoops after the latter are raised for dumping the contents of the scoops and a frame, said lugs being carried in cooperative relation by theframe and said scoops.

7. In a sand handling device for metal foundries, a sitting mechanism, and scooping mechanism to deliver unsifted sand to said sifting mechanism, said scooping mechanism comprising a pair of spaced parallel endless chains connected at intervals by transverse rods, members having legs with portions extending at an angle to each other and with the intermediate portions of the legs pivotally engaged with said rods whereby the U- shaped members are mounted for vertical swinging movement, scoops ed upon the intermediate portions of the substantially U-shaped' pivotally mount- U-shaped members, means at one end of ment of said chains, and cooperating lugs for causing tilting of the scoops after the latter are raised for dumping the contents of the scoops and a frame, said lugs being carried in cooperative relation by the frame and said scoops, track members arranged to be engaged bythe free ends of the legs of the U-shaped members for'limiting the up Ward swinging movement-of the scoops to a position wherein the latter are located forwardly of the rods, said scoops being arranged to engage the surface from which the sand is scooped thereby when the scoops are positioned in their normal relation slightly behind and below said rods,

In testimony whereof I aflix my signature.

JOSEPH GRUNT.

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