US1575937A - Grain-elevating conveyer - Google Patents

Description

March' 9 1926.

C. L. RHOTEN GRAIN ELEVATING CONVEYER 2 Sheets-Sheet Filed Sept. 8, 1925 a wan/W W/fneses March 9 1926.

c. L. RHOTEN GRAIN ELEVATING CONVEYER 2 Sheets-Sheet Filed Sept. 8, 1925 Qwuenkoc 'tion and Fatented Mar. 9, 19 2 5.

a rs sw strata-1 rarer orsice.

CARL narrowest, or snares, cononnno.

enAm-nnnvarrns ooNvnY'E'n.

Application and September 8, 1925. Serial No; sane.

for automatically permitting the flow of.

grain to the elevator whenthe sameis placed into operation.

A further object of the invention is to provide a grain feed controlling device for grain elevating conveyers wherein the amount'of grain allowed to flow to the conveyer is automatically regulated .in proportion to the speed of operation of the conveyer so that the feeding of an excessive amount of grain to the cenveyer is prevented. I

Still another object of the invention is to 1. rovide a grain feed controlling device of the above kind which is extremely simple and durable in construction as well as efficient in operation. Y f I Other objects will appear as the nature of the invention is better understood, and the saine consists inthe novel form, combinaarrangement of parts, hereinafter more fully described, shown in the accompanyino drawings and claimed.

in the drawings, wherein like reference characters indicate corresponding parts throughout the several views, I V

Figure 1 is a fragmentaryview partly in side elevation and partly in vertical section, of a grain elevating conveyer equipped with a grain feed controling device constructed in accordancewith the present invention,

' Figure 2 is a fragmentary vertical section taken substantially upon line 2- 2 of Figure 1,

, Figure 3 is a horizontal sectional view taken substantiallyupon line 3 -'3 0f 'Fig ure 1, and ,I I r Figuresis an enlarged fragmentary def tail view with parts broken away and in section, and illustrating details of the feed controlling device.

Referring more in detail to the drawings, a grain elevating conveyer is herein shown embodying a casing composed of a pair tr;

grain the hollow shaft 13, and the u of the bell crank levers 25 are weighted at vvertical'legs5. and'G which communicateat their lower ends with opposite sides of a boot veyer member herein shown as'embodying a parrot endless cha1ns8 which are suitably driven and wh1ch pass around sprockets 9 Movable in this casing is an endless consecured upon a foot shaft 10 journaledtransverselyofthe boot portion 7 of the elevator casing. The chains 8 are connected at intervals by means of bucket-s 11 which complete the endless movable member of the conveyer,

and the chains are caused to travel so that the buckets move downwardly in the leg of the casing so as to dip'int-o the grainin the boot 7 and then carry the same upwardly in the'leg 6.

In accordance with the present invention, 7

horizontal superimposed spaced brackets 12 extend between and rigidly connect the legs 5 and 6, and a hollow vertical shaft 13 is journaled in bearings 14; carried by these brackets. The upper bearing forms part of a thrust bearing, the otherpart 15' of which is secured on the upper end of the hollow shaft 13 and forms the hub of a horizontal fly wheel 16. In this way the weight of the fly wheelie effectively supported. Y I

Suitably supported in a horizontal position by means of a shaft hanger 17. carried by the brackets 12 is a transverse shaft 18 (see Figure 2) and secured upon the inner end of this shaft 181is a beveled gear 19 which meshes with a beveled gear, 20 fixed upon the intermediateportionof the hollow shaft 13. A pulley'21 is fixed upon the outer end of the shaft 13 and this pulley is operatively connected by means of. an endless driving belt 22 with the pulley 23 fixed upon a projecting end of the conveyor foot shaft 10. It is thus apparent that when: the endless member of the conveyor is driven, ro tation of shaft 10 ;will be imparted to the hollow vertical shaft 13 and consequently to the fly wheel 16 for a pupose. which .will presently become apparent. I I I Pivotally mountedas at 2 L upon the margin of the fly-wheel 16 are a pair ofopposed bell eranklevers 25, the axes of which are parallelv andhorizontal so that said bell crank levers swing vertically. The lowercarms of the bell crank levers 25 engage the under side of adisc v26 which is .fixeduponthe upper end of a shaft 27 slidably movable in er arms their free ends as at 28 whereby the disc 26 and. shaft 27 are normally allowed to lower by gravity.

The lower end of the shaft .2? hasgroovedring or a pair of: collars 29 fixed thereto between which collars orfia-nges of the grooved ring is jonrnaled a ring 30 rigid with the inner'end or a horizontal arm 31 which is rigid with the intermediate portion or? a .horizaontal rod 32. The rod 32 lies-at one side ofthe conveyer and the arin 31pro jects laterally from one s de .thereo transversely of the conveyer so as'to connect with the shaft 27 as described, and llgKiWltll the ends-of the rod are further horizontal arms .Openinginto the boot 7 at the.

manner, and the flow of the grain to the boot is controlled by means ofvertically slidable gate valves 35. Each endar1n33 of the rod 32 is connected to the upper end of one of the gate valves 34 by means of a link 36 V which is of such length as to permitthe gate valves 35 to completely close the chutes when the shaft 27 is in its norinal lowered position. V a p In operation, when the conveyer is rendered operative tlie shaft 10 rotates and coininnnication of the rotation thereof to the hollowshait 13 is eii'eoted through the gearinn hercinbefore described. Upon rotation otl'he shaft 13 the fly wheel 16 is caused to turn and the weigh-tedbell crank levers 25 swing under the action of centrifugal force so as to cause the shaft 27 to move upwardly by engagement with the disc 26; "The upward movement of the shaft 2;? is transmitted to the rod 32 so'that'an up rard pull is sinniltaneonslv exerted upon the gates 35 and the grain thereby allowed to jilow into the boot 7. The opening movement oi the. gates will be proportional to the speed (it travel of the endless member elite convever so that. the proper amount of grain fed into the bootis' insiired. In other words, the faster the conveyer travels, the greater the carrying or conveying capacity oi" the same, and a corresponding increase in the feed of grain throngh the boot is had. By

preventing excessive flow of grain to the elevator liIS inost edicient operation is in.-

snre d .withorit loss of ower.

Then the co'nveyeris rendered inoperative.

the shaft 27 will automatically lower so as to permit the gate valves 35 to con rp'letelv close the chutes 3% and completely ent off the flow or grain' to the bent. 1V, i this done the grain c lninped into the bins will be prevented from flowing into the boot 7 and clogging the conveyer. V

Minorchangesinay be made without departing from the spirit and scope of the inventionas claimed. r

What. I claim as new is:

1; In coinbi itio'n, agrain elevating conveyerincnding a casing having a boot and embodying a transverse driven. foctshaft jonrnaledin the boot, an endless conveyer IPQIYllDCI movable inthe casing and operatively associated with said foot shaft, and

governor operated means operatively con nected to said foot shaft for controlling flow of grain "into said boot, said controlln'ig means including dump; bin chutes discharg inginto the .boot and provided with controlling gatevalves and a slidable governor operated vertical rod connect-ed to said valves, thexconnection between said vertical rodand said valves embodying a horizontal rod .having rig d lateral armsrespectively connected to said vertical rod and; said valves. i a

2. In coinbinatioin a grain elevating conveyer including a casing having a 'boot and a pair of vertical legs; an endless conveyer member novablein said casing, a foot shaft journaled in the boot and operatively associated with said endless conveyor nie'nibeig vertical hollow shaft journaled between the casing legs and having a fly wheel secured 1 thereon, operative connections between said foot shaftand said hollow vertical shaft, chutes arranged to discharge into said boot gate valvesv for controlling the flow of grain through the chutes, and speed responsive nieansassociated with the iivwheel for opera'ting said valves and inclndinga shaft slidable in said hollow shaft. V i

3Q In combination, a-grain elevating conve vei' including av casing having a boot and a pair of vertical legs, an endless conveyer .ineinber movable in said casing, a rename jonrnaled in the boot and operatively associated with said endless conveyer inembena vertical hollow shaft journalcd between the casinglegs and having a fly wheel secured thereon, operative connectionsbetween said foot shaft and said hollow vertical shall, chutes arranged to discharge into said boot.

gate valves for controlling the flow of grain through the chutes, and speed responsive means associated with the fly wheel for opc-iratnra said valves and mending a shaft slid'able in said hollow shaft, and weighted levers pivoted on the fly wheel, said sliidablcshaft having a disk, secured o'n'its ripper end engaged by said levers.

' In testimony whereof I aiiiri nivsignatnre-

Images