ment,@of the invention bas ,bLenshDwn 'and illmtrated, it will be @undergtoad tligt various @modifications may be -made witliin the scope 'of 'the appended claims without ,,departing @from 'the spirit of the @invention, What I @claim is: 1. In a flight conveyer, elongated @conveying means moving in @an extended path, swiv--l blocks carried by said ,conveying means in spaced apa.,t rela;tion, conveyer flights yieldingly mgunted on sa,id conveying mffans and @pivotally attached to sa,id swivel blocks to swing fro-m,a normal position perpendicular to the conveying means in a direction opposite to the ;diredtion :of -conveyet trav.el and limited against mavement in the direction of @conveye-r travel @beyond -the norma-Iperpendicular position, and resilient brates ranged between so@ld conveying means'a-nd said fl,ig.hts and yieldinglyurging said flig@h-.ts agair-st their normal positions of lirnited trav6l and ilito posit-'.ons transverse to, said egnveying r@ieans About the axes of said swivel blocks and pivot,,al attachmen+. of. said flights, the axis of said swivel blocks and flight pivots being at right @angles one to, the other. 2. In a flight conveyer, elongated conveying means moving in an extended path, snvivel b@'ocks rota,ta;bly carried by said conveying means in spaced Ppart relatio-n, conveyer fligh,',s Yieldingly mounted on said conveying means and pivotally atta6hed to said swivel blocks to swing from a norm-al position perpendicular to the conveying means in a @dirertion opposite to the directiGi-I of conveyer travel and limited agoanst - @noverr..Ont ,in the direction of conveyer travel beyond the normat perpendicular position, and resilient bra,ces engaging the rearward walls Gf said flights and secured to said conveying means for yieldingly ur,@ing sa;id flights against their normal positions of limited travel and into positigns transverse to said conveying means about tli:e axis of said swivel blocks and the axis of pivotal attach,.,n(-nt of sa@id flights, the axes of said swivel ))locks and fligl,,ts being offset and e,,Ktending at right angles to olil- a-nother. 3. In a flight conveyer, elongated conveying means moving in an.extende path, swi mounted on sa;id co@nveying means to p:ivot in a plane parallel with the 'PlAne of the cOnveYer means, conveyer flights yieldingly mounted on said conveying means and pivotally atta;ched to sa.i,d swivel blocks to swing in a plane transverse to the pivot plane of said swivel blocks, and resihent braces bent into arcuate form arranged between said conveying means and said flights and yieldingly urging said flights into positions transverse to, said conveying means. 4. In a flight conveyer, elongated conveying means moving in an extended path, swivel blocks mounted Gn said conveying means to pivot about an axis extending transversely thereof, conveyer flights yieldingly mounted on said conveying means and pivotally attached to said swivel blocks to pivot about an axis at right angles to said swivel axis, @and resilient braces having crossed arms arranged between said conveying means and said flights and yieldingly urging said flights into positions transverse to said conve3fing rnearls. 5. In a fl@ight conveyer, elongated conveying means moving in an extended path, swivel blocks mounted on said conveying means topivot about an axis extending transversely thereof, conveyer flights yieldingly mounted on said conveying means and pivotally attached to said swivel saidtswivel a.,ds, an:d resilient bmms havihg Intermediate portions secured to zWd conveying means gnd arm's ,extending therefr@om 'ti) said flights for yieltingly,urging ,said flights into ,po@ sitions,transverse to said conveyiilg nleans @about the @ni-ulti-plane axes thtreof. 6. In a fif@ht -conveyet, @elongated means moving -in anextende@d path, mounted -on se@id conveyingmeans to pivot,,about 10 an axisextending transversely!theroof, iconveyer flights yieldingly mounted :6t Mid Oonivey.'mg ' nieans @and pivatal-ly ratta;ched to -8aid swivel blocks to pivot about an axis at r@ight angles to said zwivel axis, .qnd resilien@t @,braces hov-i ng in15 term, ediate -por-tioiis secur-ed to 'said conveying means and terossed arms iextending @ther,&frGm,,to sai-d tights for,yialdingly urging saidilights into positions -transv-erse to said convey-ing nlean@. '7. In a Eight @oonveyer-, tlongated conve3iing 20 ir@eans moving in an lextended path, svvivel blocks inounted on said,,conveyingmeans to i@ivot about anaxis extending @transversely thereof, - conveyer fJIghts yieldi-ngly MoUnted on said con-veying means and pivotallyattached to @said swivel blocks 25 to pivot About an axis at right angles to said swivel axis, and re8ilien't braces having intermediate portions secured to said egnveying means and areuately bent arms extending therefrom -t-.o sa;id fhghts and yieldin,,gly urging said M-ghts into 30 positions transverse to said,conveying means. 8. In a flight conveytr, el@ongated conveying means moving in an extended path, coh-veyer flights yieldingly and pivotally mounted on said conveying means to pivot 9,,bout a pair of axes at 35 right angles to each other, -and spring strips having flat portionsextending along said conve3fiiyg means and bent portions extending obliquely outward from -said flat portions to said flights and yieldingly urging said flights into positions trans40 verse to said conveying meam. 9. In a flight conveyer, elongated conveying means moving in an extended path, conveyer flights yieldingly and pivotally mounted on said conv-eying meam to pivot abgut a Ijl;ir bf axi@t 45 at right angles to each other, and sprihg strips having flat portions extendifig along sa@id conVeYing nleans and bi@nt portions extending obliquely 6utward from said flatportions to said 50 flights and.yieldingly ur-ging said Eights into positions transverse to said conveying means, said spring strips having aportion bent over the outer edge of said flight. 10. Tn a flight conveyqr, elongated -conveymg means 55 . having link members connected by pivot pins moving inan extended path, conveyer flights yieldingly inounted Gn said conveying means, and resilient braces of approximately U-s@haped form secured at their mid-portions to the pivotl>ins of 60 said conveying means and at their outer ends to saidflights. 11. In a flight conveyer, elongated conveyiiig means moving in ali extended path, can-veyer flights yieldingly mounted on said conveying 65 means, and resilient braces of approximately Ushaped form secured at their midPortiong to sadd conveying means -and at their outer endt td said flights, said mid--poi-tions of said bradeg be@ ing inversely belit into 100ps. 70 12. In a -flight conveyer, elonga;ted conveyliig means moving in an extended poth, conveyer flights yieldingly mounted on said coxiveying means, and xesilient brgees of approximately Aishaped form zecured at their inid-portloft to blgcks to pivot about an axis at right angles to 75 said conveying means and having arms bent,

arcuately outward and secured at their outer ends to said flights. 13. In a flight conveyer, elongated conveying means moving in an extended path, conveyer flights yieldingly mounted on said conveying means, and resilient braces of approximately Ushaped form secured at their mid-portions to said conveying means and having arms bent arcuately outward and secured at their outer ends to said flights, said mid-portions of said braces being,inversely bent into loops. l@l. In a flight conveyer, a conveyer chain having hnks, and pivot pins, flight supports pivotally secured to said pivot pins to swivel in a plane parallel with the plane of said conveyer chain, flights pivotally secured to said flight supports to swing from a normal position perpendicular to the conveying means in a direction opposite to the direction of conveyer travel and limited against movement in the direction of conveyer travel beyond the normal perpendicular position and resilient braces extending from said conveyer chain to said flights and yieldingly urging said flights against their normal positions of limited travel and into positions transverse to said conveying means, said flight supports providing a surface engageable by said fiights to limit a.-ainst pivotal movement of said flights in said direction of conveyer travel beyond the normal perpendicular position. 15. In a flight conveyer, a conveyer chain having links and pivot pins, flight supports secured to said pivot pins, flights pivotally secured to said flight supports and resilient braces extending from sadd conveyer chain to said flights and yieldingly urging said flights into positions transver@e to said conveying means, said resilient braces having their mid-portions secured to said conveyer chain,and crossed arms extending outwardly therefrom to said flights. 16. In a flight conveyer, a conveyer chain having links and pivot pins, flight supports secured to said pivot pins, flights pivotally secured to said flight supports and resilient braces extending from said conveyer chain to s@id flights and Yieldingly urging said flights into positions transverse to said conveying means, said resilient braces having their mid-portions secured to said pivot pins of said conveyer chain and cross6d arms extending outwardly therefrom to said flights. 17. In a flight conveyer, a conveyer chain having links and pivot pins, flight supports secured to said pivot pins, flights pivotally secured to sadd flight supports and resilient braces extending from said conveyer chain to said flights and yieidingly urging said flights into positions transverse to said conveying means, said resilient braces having loops at their mid-portions secured to said pivot pins and arms extending outwardly therefrom to said flights. 18. In a flight conveyer, a conveyer chain having links and pivot pins, flight supports secured to said pivot pins, flights pivotally secured to said flight supports having struck-up lugs projecting rearwardly from said flights and resilient braces extending from said conveyer chgin to said flights and yieldingly urging said flights into positions transverse to said conveying means, the ends of said braces being held secured to said flights by being received in openings in said struck-up lugs on said flights. 19. In a flight conveyer, elongated conveying means moving in an extended path, conveyer 2,391,700 flights yieldingly mounted on said conveying means, -and resilient braces arranged between said means and said flights and yieldingly urging said flights into positions transverse to said conveying means, and pivoted adjustable tripping means engageable with said flights and adapted to forcibly tilt the fjights to facilitate the discharge of the materials carried thereby. 20. In a flight conveyer, elongated conveying 10 means moving in an extended path, conveyer flights yieldingly mounted on said conveying means, and resilient braces arranged between said means and said flights and yieldingly urging said flights into positions transverse to said con15 veyin- means, tripping means engageable with said flights and adapted to forcibly tilt the flights to facilitate the discharge of the r-qaterials carried thereby and means for adjusting the position of said tilting means relatively to said con20 veyer flights. 21. In a flight conveyer, elongated conveying means moving in an extended path, conveyer flights yieldingly mounted on said conveying means, and resilient braces arranged between 25 said means and said flights and yieldingly urgin.said flights into positions transverse to said conveying means, flexible tripping means engagealble with said flights @and adapted to vibrate the flights to facilitate the discharge of the material 30 carried thereby. 22. A conveyer comprising a housing having an inlet and discharge station adjacent each end thereof, conveyer sprockets mounted at each end of the housing, an endless conveyer chain trained 35 over said sprockets, resiliently mounted flight members carried by said chain, o, division plate extending longitudinally of the housin.- and separating the conveyer courses, means for guiding said conveyer chain over the discharge opening 40 at one end of the conveyer to discharge the material and to prevent the discharge course from frictionally contacting the walls of said housing and means adjacent the discharge station for vibrating saidresilient-ly mounted flight members 4t, to agitate and dislodge material thereon. 23. A conveyer structure cgmprising a conveyer housing having inlet and discharge openings, an endless conveyer mounted in the housing, flights mounted on the endless conveyer, an idler 50. sprocket located adjacent the discharge opening for guiding the conveyer in a tortuous path above the discharge opening and for tilting the flights as they traverse said discharge opening and means pivoted on the axis for said idle sprocket 55- for engaging and vibrating the flights as they traverse said operiing to dislodge material therefrom into the conveyer discharge. 24. A conveyer structure, compr@ising a conveyer housing having inlet and discharge open60 ings, an endless conveyer mounted in the housing havin@ its courses traveling through independent chambers therein, a conveyer sprocket mounted at each end of the housing, an idler sprocket lgcated between one of said sprockets c5 and the d-ischarge opening to cause said conveyer to be guided in a toltuous path above the discharge opening and tc> tilt and dislodge material, from the conveyer flights into said opening and means adjacent the discharge opening pivoted 70 @about the axis of theidler sprocket for vibrating the conveyer during its travel past said discharge and prior to its tilting operation. HENRY W. I-IAPMAN.

Patented Dec. 25, 1945 21391@700 UNITED STATES PATENT OFFICE 2,391,700 RESILIENT FLIGHT CONVEYER Henry W. Hapman, Detroit, Mich. Application March 23, 1942, Serial No. 435,847 24 Claims. The present invention r@,lates to conveyers, and more particularly to flight conveyers. One object of this invention is to Provide a flighb conveyer wherein tle flights are pivotally mounted upon the conveyer chain and are.also resiliently and Yieldingly connected to the conveyer chain by resilient ihembers such as spring braces. Another object is to Provide a flight conve@,er wherein the flights are formed with ears adjacent one edge thereof, these ears being pivotally mounted upc>n the conveyer chain, spring braces being pr-ovided for yieldingly holding the flights in - position substantially perpendicular to the path of travel of the conveyer chain. -Another object is to provide a flight conveyer as set forth in the preceding objects wherein the resilient braces are formed of spring wire having a b,-nt loop for engaging one of the pivot Pins of the cop-veyer chain. A,.iother bbject is to provide a flight conveyer a8 set forth in the preceding objects wherein the resilient braces are yieldable so that the flight conveyer may travel under a material load and the fights of the conveyer may yield opposite and laterally of the direction of conveyer travel so that said flights will yield in two different planes Anbiher object is to provide a fligbt conveyer as set forth in the preceding objects wherein stop meaiis is provided for limiting the motion of the flight in cne direction such as the direction of conveyer travel. Another object is to provide a flight conveyer having resiliently mo@unted flights supported on a conveyer ci-iain, means being provided for forcibly tilting the conveyer flights adjacent the discharge opening of the conveyer and at a predetermined position relative thereto so as to o.ssist in discharging and dislodging the materialls carried by the flights. Anot-her object is to provide a conveyer I-ousing having parallel adjacent courses uniquely ''arranged to eliminate friction between the conveyer fiights and the wall surfaces of the conireyer housing and to provide a housing structure in which the divisional wall extends to the axis of one of the conveyer sprockets. .Anot-ti--r c,biect of the invention is to provide a co,-iveyer )'light member which is limited ag-ainst movement in one direction by a portion of tle supportitig aiid carrying chain and@ preferably iieo,r the h-tnge of said chain so that the movement of the mpterial will be effected in one direetion- and t!'Ie load therbof will be supporteci by (Cl. 198-170) the flexibie braces in a yieldable manner a-id the material will be discharged by vibrating the flight and causing the material to be agitated and discharged at the discharge station. Another object of ti-e invention is to cause the material being conveyed to be thrown forward toward the discharge opening of the conveyer and to@,dislodge material therefrom during the circuitous travel of the conveyer as it passes the 10 conveyer discharge, which i accomplished by offsetting one of the conveyer sprockets and providing an additional sprocket to cause a portion of the conveyer to traverse tle disch-arge opening diagonally thereof. iq ' Another object &f tle inventioii i@ to double tiit the conve@er flights above the conv6yer @discharge point so that the flights will be rocked in first one direction and then the other to facilitate the removal of matetial adhering thereto. 20 @Another object of the invention is to provide a conveyer having rigidly mounted flights with resilient vibrating means engaging said flights adjacent,,the conveyer discharge to vibrate the flights.and dislodge material adhering thoreto. 2.5 Inthe,drawings: . Figure I is a top plan view, partly in sect on, of a -portion of a flight conveyer according to a preferred- embodiment of the invention; Figure 2 is a side elevation, partly in section; @3 Figure 3 is a vertical cross section taken along the line 3-3 of Figure 2 looking in t'Lle direction of the arrows illustrating in detail the connection between the conveyer flights and the yieldable braces att-ached to the convey cha ; .135 Figure 4 is a perspective view of a modified forin of ti- e invention; Figure 5 is a top plan view of another modified form of the invention; Figure 6 is a side elevation of the modification 40 shown in Figure 5; lqgure 7 is a vertical cross section taken along the line 7-7 of Figure 6 looking in the direction of the orrows showing in detail the construttion and manner of connecting the yieldable braces to 45 the conveyer and flights; I riigure 8 is a perspective detail view showirig the means for holding the outer ends of the sp@ing braces; Figure 9 is a top plan view of one of the spring .50 braces; Figure 10 is a side elevation partly in section, of the flight conveyer of the invention as applied to a run-around type of conveyer; Figure 11 is a vertical cross section taken along r)5 the line I 1-1 I:of Figure 10 looking in the direc-

2 2)391,700 tio n of the arrows illustrating the position of the flight, conveyer chain and spring braces; Figure 12 is a side elevation, partly in section, showing an endless conveyer of the type set forth in the present invention wherein additional r) means is provided for forcibly tilting the conveyer flights to facilitate discharge of the materials carried thereby; Mgure 13 is a horizontal section taken along the line 13-13 of Figure 12 looking in the direc10 tion of the arrows showing an adjustable tripper for vibrating the conveyer flights; Figure 14 is a view similar to Figure 13 but showing a modification thereof in which a single adjmting means is providec@t for rocking the 1.5 tripper members; Figure 15 is a side elevation of a further modifled form of the device for forcibly tripping the resilient conveyer flights; Figure 16 is a horizontal section taken along 20 the line 16- 1 6 of Figure 15 looking in the direction of the arrows illustrating the structural details thereof; Mgure 17 is a front elevation of a modified form of tripping member illustrating a resilient 25 vibrating bar to be used in lieu of the vibrating bar shown in Figures 12 to 16 inclusive; Mgure 18 is an edge elevation of the same showing the manner in which the flexible 'vibrating bar is anchored to the supporting shaft 30 for adjustment relative thereto; - Figure 19 is a fragmentary sectional view showing a still further modified form of the invention employing rigidly mounted flights adapted to be vibrated by a flexible tripper simi35 lar to the tripper shown in Figures 17 and 18; and Mgure 20 is a top plan view of one of the yieldable spring braces employed in the form of the invention shown in Figures I to 3 inclusive. 40 General arrangement In general, the flight conveyer of this invention consists of a conveyer chain with links and pivot pins traveling in the usual orbital path. 45 one set of pivot pins carries plate-like flights, each of which is connected to the pivot pin immediately preceding it by means of a spring brace, which spring brace is tensioned slightly greater than the weight of the load imposed on 50 the flight. As the flight is pivotally mounted upon the chain pivot pin, and as the spring braces are resilient, a resilient mounting of, the conveyer flight is thus accomplished so that the flights will have a multi-plane swing in a direc35 tion opposite to the direction of conveyer travel when the flights are overloaded or encounter obstructions in the path thereof. . The spring brace preferably consists of a wire bent approximately into U-shaped formation Go with the lower ends joined by a midportion. This mid-portion is mounted in a slot in one rf the chain pivot pins which slot is of a depth to limit the inward movement of the mid-portion and prevent binding of the conveyer chain pivot (,5 pins, and said mid-portion is further secured in place by means of a cotter Pin or other suitable pin. The free ends of the spring brace are connected in any suitable way to the conveyer flight at locations near their outer side edges and when 7o positioned as above, are flexed so that said free ends wili remain in position relative to the flight and under tension. The modification shown in Figure 4 substitutes a resilient flai strip for the spring brace of Fig- 75 ures 1 to 3 inclusive. The inner end of this spring strip lies parallel 'with the side links of the conveyer chain and is secured to the pivot pins thereof. The modification shown in Figures 5 to 9 inclusive is similar to the form shown in Figures I to 3 inclusive in that a spring brace is also employed. The modified spring brace, however is of approximately U-shaped form with diverging ends coinected to the flight near its opposite edges. The mid-portion of the spring is provided with a loop of circular formation which is secured to the adjacent pivot pin of the conveyer chain (Figure 9). In the rnodification shown in Figures 10 and 11 the conveyer flights are mounted on one side only of the conveyer chain so as to form a runaround conveyer. The conveyer chain passes through the conveyer conduit in a path near the top thereof. The conveyer conduit is ordinarily horizontal, so that the conveyer flights extend downward beneath the conveyer chain. In the modific o F gures 1 to 19 inclusive, various means are provided for forcibly tripping or tilting the conveyer flights as they arrive opposite the discharge spout or conduit. This provides a snapping and vibrating action which dislodges material from the conveyer flights and facilitates the easy u oading and discharge'of the material carried thereby. P, light conveyer with crossed brace construction Peferring to the drawings in detail, Figures 1 to 3 inclusive and 20 show one embodiment of the invention as including a conveyer chain, generally designated 10, having flights generally designated I 1, pivoted thereto and braced by a U-shaped brace generally designated 12 (Figure 20). The chain 10 is of approximately the same construction for the different forms of the invention. The chain IO consists of a flat pair of outer and inner I,' nks 13 and 14 respectively (Figtire 2), having apertures 16 and 17 therethrough for the passage of pivot pins 18. A rotatable conveyer flight support (9 is also provided adjacent the head 20 of the pivot pin 18, and has a bore 21 theretbrough for the pasqage el the pivot pin I 8 so that the flight support I 9 may freely rotate upon said pivot pin 18. The fligl-it support 19 is approx,imately in the form of a thick wa,-z@her having a portion 22 projecting laterally therefrom ond provided with a transNierse bore 23 at right angles to the bore 2 1. The bore 113 is arran.-ed to receive a pivot pin 24 upon which the fli.@hts I f are pivotally supported and one eiid of the pivot pin 24 is provided with a rivet-like head 25 while the opposite end of the pin 24 is provided with a, transverse opening for receiving a coitter pin 2$a for preventing the withcli@av@,al of said pivot pins. The chain Pivot Pins I 8 a-re also provided with ivasllers 26 adjacent their outer ends, these bei-,ig slotted as at 27 to receive the mid-portions of the yieldable braces 12 and said slots are formed of a depth ito limit the inward movement of the mid-portions of the braces 12 to allow free play of the pivot pins 18 and prevent bindiiig of the conveyer chain elements. The pivot pins 13 adjacent the slots 27 are also provided with transverse bores 28 for receiving cotter pins 29 adapted to hold the bra-cea 12 therein as described below. The flights I I (Figure 3) include plate-like portions 30 having spaced ears stamped out of an aperture 32 in the lower edge of the portion 30. The ears 3 I are bent parallel with each other

2)391 700 ancl have apertures 33 tberethrough for receiving @48 and 49 so as@ to@ pass aro-und the flight s7jpthe pivot pins 24 so that. said fughts may rock on sa4d pivot pins iri a @ direction opposite to the conveyer travel. The aperture 32 i-s provided Alilth,an extension aperture.34 (Figure 3) adopted to pernait, the flight II to tilt @to grid fro witbout iriterfering with the Ilead 20 of the pivot pin 18. The flights I I are also provided @witli bosses 35 (Mgure 1) struck out of plate-like portions 30 and havirig opertures 30 therethrougb. The braces 12 @ are preferably of spring wire 6r rod stock initially bent as showii in Figure 20 with one pair of ends ioined. The free:ends,of the braces 12 are crossed and placed utider tension to cause the straight portions to curve and flex as, shown in Figure I so tbat@ the flig@hts 30 will be yieidingly urged against the conveyer load a,nd against the stop@ shoulder 32 abutting the rgtatable flight support I 9. The extreme free ends o-f the brace 12 @are bent as at 37 and liave straight end portions 38 passing through the apertures 36 in the bosses 35. The .9,upporting portions 39 of the brace 12 are crossed as at 40 nnd beyond the crossing point are bent at 41 to provide a connecting portion, 42 extending betv@7oen the bent portiolis 41 and seated in the @ilot 21 of the pivot pin 18 behind the cotter. pin 29. The braces 12 may be pulled or pushed into. flaitter or more strongly curved arcs, thereby permitting the flights II to yield in two different planes. When the cgnveyer flight is tilted or rocked, on the Pivoted fligh,.t support 19 relative to the pin 18, one of tlle spring braces $9,would -have a tendency to assume a more strongly curved @ are while the other portion 3,9 would, hove a.tendo,,ney to be attenuated. In the operation of the form of the invention shown in Mgures I to 31@inclusive and 20, the conveyer chain IO with its attaobed flights II s,nd braces 12 is caused to pass through- a %uita-ble conduit 43 (Figure 3) and is propelled by sprockets (not shown) of conventional design and driven by conventional mechanism (not sho.wn). The flights I I carry along with them the materiai which is fed into the conveyer conduit 43 and delivered at the desired location. Should the flights I I encounter an obstructio-n or be jammed by material adhering to. the flights or conduit 43, they wili yield around their pivot nins 24 or about the axis of the pivot pin 18@ and t-be sdring braces 12 will store up energy as they are,, blent into arcunte form. When tiae obstruction is passed, the flights I I will be pushed back or returned to their normal pdsition by the resilir--nce of the spring braces 12. If one of the ')races 12 should break, it can be easily and quickIv reolaced rnerely bywithdrawing the cotter pin. The spring braces 12 are installed so that the in-itial tension imposed on the flights jr, greater than the load intended to be conveyed so th9,t t'@ie flights will normally repel said load and will or,i-ir flex whe-n the load is lneressed beyond 0, predeterrnined point. Modified resilient flight cQnVeYer In the modificati@@ o@f Figure 4 the conveyer chain IO and flights I I are similar to those sliowri in Fi@ures I to 3 inclusive and are similarly designated. In lieu of the spring brace .12 in ngures 1 to 3, there is provided a flat spring brftee, generally designated 44. This spring @brace has a fiat portion 45 which extends between tWa of the pivot bolts 46 which are used instead of the pivot of Figures I to 3 i lusive. , BeWncl th,-, ,pins I 8 Tic port I 0,@ and book itself @round ' the upper edge of the@-fligbt 11. The:intermediate portions Gr edges, of the inclined spring brace 50 are reclueed in width so that the flight II may rotate with the washer 19 by reason of the reduced portion of the inclined brace 50. The inclined brace is thus allowed to twist sliahtly to facilitate the rocking of the @ flight II within certain limits 10 about t-he axis of the pivot 46. Said flight I I is also capable of swinging moverqent on the pivot 24 in a direction opposite to the direction of conveyer In the operation of the modification shcywn in 15 Figure 4, when the flight I I encounters an ob@struction or irregularity in the conduit 43, the inclined portion 50 of the spring brace 44 springs backwards so as to y,@'eld and perinit the obstruction to be passed. When this occurs the 20 flight pivots around the pivot pin 24 9,nd swings -backward. The flight may yield in two planes and may swing laterally or longitudinally of the conveyer. After the obstruction or irregularity has been passed, the flight I I swings back to its 25 normal pozition by the resilience of the spring brace 44. . In the modification shown in Figures 5 to 9 inclusive, the construction of the conveyer chain ID and flights I I are approximately the same as 30 in the -fgrm sho-v@7n in Mgures I to 3 inclusive, with minor variations described below. The spring braces, generally designated 51, hgwever, are of approximately W-shaped form with arcuately curved side arms 52 whicb are normally 35 straight as shown ill,Flgure 9 baving their free ends 53 passing through the struck-up guides 54 in th6 flights I I and engaging struck-up tabs 55 (Figure 8). The guides 54 are pressed do-wn upon the ends 53 of the soring ibraces 51 so as to hold 40@the latter firmly. The relatively straight spring -braces 52 are bent into arruately curved shape when applied to the conveyer and :ffight to place the flight under tension, 'which tension is greater than t-he weight of the load being conveyed. 'IO The mld-portion of the spring brace 5 I is formed witti a reverse loop 56 (Fio,,ure 9) by bending the brace back on itself at the bends 57, leaving a gap 58 therebetween. The loop 56 thus formed receives the pivot bolt 59 which is 60 substituted for the pivot pin 18 of Mgures I to 3 inclusive and is beld in position by the nut 60 ihreaded upon the end thereof. A washer 61 beneath the nut 60 prevents the loosening of the connection through vibration or other causes. 55, In the operation of the modification shown in Figures 5 to 9 inclusive, the conveyer, as before, traverses the conieyer conduit 43 (Fia,ure 3) and carries tl-ie niaterial along with it. When an obstruction or irregularity is encoutitered, the flight 00 I I swi-ngs -rearwardly around its pivot pin 24 or sv4ngs gbout the pivot piii 59, causing the side portions 52 of the spring brace 51 to bend into arcs of shorter radii, storing up energy. When the obstruction has been passed, the fli-ght@s I I 65 are. Pushe6 back tD their nonnal positions by the resilience of the spring braces 51. On the other hond, the spring braces 51 may be attenuated, tliereby !nabling the flights to yield in a -multiplane swing. 70 The modification shown in Figures 10 and 11 eriaploying the same type of conveyer chain 10, flight I I and spring brace 12, 44 or 51, is o-f the runaround type of conveyer. The chain 10 has flights II on only one side of the ebain, which flight II, the spring brace 44 is be@nt V,,5 lpt 47, 75 Pwes tbrough the conduit 62 at a point near the

4 2,391,700 ,top waU 63 thereof. The latter is sedured as @bt 64 to the trough portion 65 of the conveyer conduit 62. The conveyer conduit 62 is usually arranged in a horizontal orbit so that the single row Df flights I I extend downwardly from the chain 10 and carries the material from Gne location to another. When an obstruction or irregularity is reached, the spring braces yield and the flight I I swings rearwardly as before about its Pivot pin 2 4 or may swing about the pivot pin'] 18, but is restored to its original position later by the resilience of its spring brace. Mechanism foi- forcibly tilting resilien I t ft I ights Mgures 12 to 18 inclusive show a flight con- 1,5 veyer of the type described previously whereiia means is provided for forcibly tilting the flights as they arrive opposite the discharge opening. The endless conveyer and its flights are of the type shown in Figures I to 3 inclusi-Ve, and ac- ,i) cordingly bear similar reference numerals. This endiess conveyer is mounted on sprockets 70 and 71 (Figure 12) mounted respectively on shafts 72 and 73 and engaged by an idler sprocket 74 mounted on a shaft 75 in the upper end of tiie 2,5 housing 76 adjacent the discharge conduit 77 thereof. Near the opposite end of the conveyer housing 76 an inlet 78 is provided into which th(@ materials are dumped for conveyance elsewhere. A siack take-up device 79 is connected to the@,it) shaft 72 for adjusting the position of the shaft 72 and consequently taking up slack in the conveyer chain. The idler sprocket 74 is located adjacent the discharge opening 77 to cause the flights I I to,!;.-, tilt thereabove so that the material will drgp therefrom into said discharge. Continued travel of the flights about the sprgcket 71 causes the same to tilt in the opposite direction and thereby dislodge any matierial adhering to the flights sO@ ':!@ that the material will fall downwardly into the discharge chute 77. A central division wall 76a extends from a point adjacent the sprocket 70 to the sprocket 71 and terminates at a point hori-.-, rial falling from the flights as they are tilted in reverse directions while traversing the .- ,prockets 74 and 71 will fall downwardly into the discharge chute and the material will not be carried down the unloaded side of the conveyer. Mounted upon tlie shaft 75 on opposite sides of the sprocket 14 are hubs 80 provided with arms 81 and 82. The arms 82 project inwardly toward the conveyer flights I I so that the free ends en- _. gage and tilt the flights with a snap action as'@@t)5 the flights I I move past the ends of the arms 82.. The arms 81 are engaged by abutments and 84 on screw shafts 85 threaded through threaded bosses 80 mounted on the casing 76 and adjusttions of the ends of the tripping arms 82 may be adjusted relative to the conveyer flights I I so as to regtilate the extent of the tripping and vibrating action. The modification shown in Figure 14 is similar to t.hat of Figure 13, except that a @ 65 single screw shaft 88 is provided and connecied to a yoke 89 which in ttirn is connected to the arms 81 in a siniilar way. A threaded hand wheel 90 serves to adjust the positions of the tripping arr.,i 82 relatively to the flights I 1. The modification 70 shown in Figures 15 and 16 is similar in principle to the modification sl@iown in Figures 12 to 14 inclusive, except that a different adjustment is provided for t.-he tripping arms 82. These are rigidly or resiliently mounted upon the shaft 91 75 zontal.with respect to the shaft 73 so that mate-, 45 the resilient action of the spring arm 101, able by hand wiieels 87. By this means, the posi- @ 60 movement in the other direction. That is, the whereas the si3rocket 74 is loosely mounted thereon. The shaft 91 carries an arm 92 mounted on the outer end thereof and provided with a lockin@ pin 93 movable into and out of engagement with locking holes 94 arranged in an arcuate path ' A coil spring 95 urges the locking pin 93 into the holes 94, whereas a head 96 Is provided for pulling the pin 93 and enabling the readjustment of the arm 92 and consequently the repositioning of the tripping arms 82. In the modification shown In Figures 17 and 18, a resilient tripping and vibrating member may be secured to tlle shaft I 00 which corresponds to the shaft 75 in Flgures 12 to 14 inclusive. As shown in Figures 17 and 18, a resilient trip member 101 formed of a relatively flat spring is secured to the shaft IC 0 by means of a divided collar 102 having opposed flange portions 103 betweerl which the flat spring vibrating member is adai3ted to be seated and held in place by a bolt 104 having a nut 105 threaded on the opposite end thereof. The flanged members 103 are provided with slots 106 in which the bolt 104 may operate so that the resilient spring agitator 101 may be moved toward or away from the conveyer flight to a predetermined position so as to adjust the degree of vibration or agitation of said flights r@sulting in the dislodgement of the materlal' carried thereby into the discharge outlet. In the modification shown in Fqgure 19, the coiiveyer casing 76 is substantially identical to the form of the invention shown in Figures 12 to 16 inclusive and said casing is prgvided with a shaft 73 carrying a sprccket 71 mounted in the upper end thereof. Beneath the shaft 73, a shaft 100 rnay be provided and secured to said shaft is an idl6 sprocket 74 to cause the conveyer chaili 101, to traverse the discharge opening 77 for dis16dging the material carried by the flights II". The conveyer I 01, is shghtly different from the conveyer shown in Figures 1 to 16 inclusive and has the flights I I,, rigidly secured thereto. By employing a resilient vibrator IC 1, the rigid flights will receive a vibratory action set up by The tripping arm IC 1 shown in Fig. 19 may be s-u-bstituted in lieu of the tripping arm 82 shown in Figs. 12 to 16 inclusive, or if'desired, the conveyer I may have rigid flights with resiliently 50 mounted flights interspersed throughout the conveyer course. By employing a resilient tripping spring arm 101 both types of flights may be accoinmodated when the conveyer is made up of both resiliently mounted and rigid flight members. It is to be understo(>d, that the flights of the conveyer shown in Mgures I to 16 inclusive are capable of being tilted in a direction rearwardly of the conveyer travel and are limited against flights I I may tilt against the action of the prestressed springs 12 so that the load wiR be resiliently supported, and said limiting movement in the other direction such as the direction of conveyer travel is effected in Mgures I to 3 inclusive by the shoulders 32 engaging the annular rotary member 19 on the chain pintle IS. Similarly, the limiting of the movement of the flights I I in the direction of travel is controlled in Mgure 4 by the shoulder of the cutout 32 engaging the top edge of the rotary flight support 19. Likewise, the flights shown in Flgures 5 to 11 inclusive are hmited iagainst movement in a direction with the flight travel by said notched shoulder portions 32. While a specific embodi-