US2642175A - Portable conveyer - Google Patents

Description

' T. 'R. MAHONEY 'June 16, 1953 PORTABLE CONVEYER 3 Sheets-Sheet l INVENTOR Filed Jan. 50, 1950 ATTORNEYS June 16, 1953 1'. 'R. MAHONEY PORTABLE CONVEYER 3 Sheets-Sheet 2 Filed Jan. 30, 1950 QLM ATTORNEY5 T. R. MAHONEY PORTABLE CONVEYER June 16, 1953 3 Sheets-Sheet 3 7 Filed Jan. 30, 1950' glgllL-j EIEIEIEIEIEI I l||ll'l lllllll.

IIIIII-IIIIIIIIIIH I I D" INVENTOR fla llakoney ATTORNEY I5- Patented June 16,1953

, attain signor, by mesn'e assignments; to The Chase Foundry; Ye -Manufacturing" Company, columsn q 1 ;magma n lys so, 1950,.seria1 b. 141,249

This invention relates tola portable-iconveyor.

- fi -Claims. (Cl. 198 -121) An objectof' this inventionsis to provide' a'portable elevator for usein elevating'gr'ain or other material, the elevator'including' collapsible propssol-that the. elevator may be} lowered to a substan' tially horizontal collapsed position wherebysthe elevator may be moved from one location to another.

Another object of thisinventionis to provide inagrain lift or elevator, antimproved conveyor wherein the wear between the conveyor-and frame have been-greatly reduced, and the noise of the conveyor chains hasbeen materially reduced.

A- further objectof this invention is to provide a grain lift or elevatorincludingscreen means intl'ie elevator structure for screening out loose material.

A'lf'urtlier object of this invention is to provide a grain lift'or elevator including an. improved means for raising and lowering the elevator, the means incmain ia-wo m ana w rm gear so that the elevator will be loclieclin any. selected adjust mentth'er'eof.

Witli tlie above aridothe'r object's inview, invention consists 'inith'e arrangement; combination and details of construction -disclos"edi in the drawings and" specification, and'ther'r more-par ticularly,pointedoutiin the appendediclaims';

Irrthedrawings:

Figure l" is a" detailed" side elevation of. a port'- ableelevatorconstructed accordingto an embodi mentof this-invention" showing the elevator in" extendedoperative position.

Figure? is a transverse sectional view taken on t'he'line'Z -Z'of'Figure-1L Figure'B'is afragnientary planview 'of'the' rear 1 end of" theelevator showing" the driving? means for-th conveyor; Figure 4' is a detailed side elevation partly broken away of the rearend of'the" elevator;

Figure 5" is a fragmentary sectional view through'theworm for-the windingd'ru'm; v

Figure 6 is a fragmentary plan viewof on'e'of' the chains. I

Figure 7" is a" fragmentary "side elevation of one of the conveyorchain's.

Figure 8 is a"fragmentary planiview"taken in thez'one"indicated-bythe lines"3"8 ofFig'u'r'e 1'.

Figure 9*isa fragmentary sectional view taken on'the-line 9-=9"0fFi'gure-8.

Figure '10 isiafragmenta'ryisectionalfview taken and-lowerangle members H which are connected to the upper angle members i6 by means of a plurality of spaced apartconnecting bars 58. A plurality'of bottom bars IQ are fixedly secured at spaced'intervals between the lower angle members' I'I.

An elongated trough generally designated as 2?] is disposed lengthwise of the frame i5 and includes a bottom plate 2i having secured to the oppositelengthwise edgesthereof flanges 22, and the fiangesZZ haveextending right angularly and upwardly therefrom side walls 23. The side walls 23" terminate at their upper edges in outwardly projectingflanges 2d which are secured'by fasteningmean'sidto the upper angle members it; The bottom member 2| vof the trough 29 has fixed'to the opposite lengthwise edges thereof a pair cinch-metallic runners 26 which are secured to thebottom 2i by'iastenihg members 21.

A conveyor generally designated as 28 is movably disposed within the frame [5 and comprises a pair of endless chains 29 having their upper runs engaging over the runners 23. A plurality of transversely extending cleats 3B are securedbetween the. runs of'the chains 29 being secured to thechains 29-by means of triangular lugs M which are secured tospaced links of the chains 291 The'chain's 29" are trained over a pair of driving-sprockets 32 which are secured to a shaft 33 journalledin bearings fi l-carried by the frame 15 adjacent the rear of the frame. The chains 29'are also trained over idler sprockets 35 carried by an'idler'shaft'iifi' which is journalledin a pair ofa'djustable bearing blocks 37 carried by the for ward-end ofthe'frame' l 5; v .The shaft SS- has fi'xedthereto a relatively large s'prooket t about which a-chain 39 engages, and

the chain 3i engages about a relatively small sprocket' flfl' which is carried-by an intermediate or jack shaft dijournalled in bearings t2 carried by ythe frame it; theretbarelatively large pulley d3 about which more endlessbelts 4d engage; and thebelts 4 lengage= aboutfldriving pulleys 35 carried by a power shafted;- The shaft t3 is rotated by a power member" 4? which may be an electric motor or an internal combustion' engine The trough 2i! isformed between the ends thereof with an" opening es, and a grill or screening member 49*engagesbeneaththe opening .8" and isadapted toascreen out any loose material which Referring-to the drawings; the" nusar l5 designatesgenerally an elongated frame structur'e' 'which 'is form'e'cl of' -upp'eran'gle' members" i 6" is movedfalongthe bottom of the trough -2El 2 The sc-reen or grill'deis formed of a-plurality' of parallellengthwiseextending bars 50 which are securedto aloopedframe- 5i, and'therear The shaft ti has fixed and forward ends of the frame are secured to transversely extending bars 52 which are secured by fastening means 53 to the bottom 2| of the trough.

A mobile frame 55 is disposed below the frame l5 being provided with a pair of wheels 55, and the frame 54 is connected to the rear portion of the frame 85 by means of elongated links 55. The links 55 are pivotally connected between the frame i5 and the frame 55, the purpose for which will be hereinafter described.

A second pair of elongated links 5'! are pivotally connected at their inner ends to the frame 54 and are provided at their outer ends with rollers 53 which movably engage beneath the frame I5. The links 5'1 are adapted to be locked relative to the frame 5 1 so as to either extend or retract the frame i5 by means of a flexible member 59 which is trained over a pulley carried by the outer portions of the links 57!. The flexible member 59 is secured at one end to the sheave frame 5i and is then trained about an intermediate pulley 62 carried by the frame E5 forwardly of the pivotal connection of the links with the frame IS. The flexible member 59 is extended rearwardly and is wound about a winding drum 6-3 which is carried by a'shaft M- journalled across the frame 55.

A worm gear 55 is fixed to the shaft 54, and

the gear has meshing therewith a worm 65 which is slidable but non-rotatable on a shaft 6?. The shaft 51 is journalled at one side of the frame l5 lengthwise of this frame in bearings 58 and 59.

A spring Hi is disposed about the shaft 6? bearing at one end against one end of the worm 55 and bearing at its other or rear end against a collar H which is fixed on the shaft 61. The

shaft 5? is rotated by means of a bevel gear 12,

which is fixed on the shaft 4|, and gear i2 is adapted to mesh with a selected one of a pair of gears i3 and it. The gears 73 and '54 are fixed on the shaft 5'! being held in spaced apart relation by means of a sleeve 15 engaging about the shaft 61. A selected one of the gears 13 or 14- is moved into mesh with the gear i2 b means of a shifting fork is pivotally carried by a supporting bar Ti and engaging between a pair of collars 18 which are secured to the shaft 61. The shifting fork 15 includes an elongated lever [19 having a spring pressed pawl 85 which is adapted to engage in a notch 8! carried by an arcuate keeper bar 82. The dog or pawl 89 when engaged in the keeper notch 3! is adapted to hold the gears '53 and it in neutral or disengaged position with respect to gear 12.

In the use and operation of this elevator, the rear end of the elevator may be coupled to a tractor means by means of coupling or hitch members 83 which are carried by the rear end of the frame l5. When it is desired to use the elevator for raising grain or other material, the elevator is raised at one end by operating the power member 41 and shifting one of the gears on the shaft 62 to provide for rotation of winding drum 53 in a winding direction.

Winding of the flexible member 59 on drum 63 will pull the links 5? rearwardly and upwardly so as to thereby raise the forward end of the frame [5. When the elevator is disposed in the desired inclination, shaft 5? is declutched or uncoupled from shaft 3!. The material, which may be corn or other grain, is then discharged onto the lower end of the conveyor, and as the corn which is on the cob passes over the screen or 4 grill 49, the loose corn or other relatively small material will drop through the screen 49. The remaining material will be carried upwardly and discharged from the upper end of the conveyor 28. By providing the non-metallic or other runners 26 for the chains 29 on the upper runs of these chains, a substantial amount of noise is eliminated, and in addition the wear on the chains will be very materially reduced.

Where the material is relatively small such as small grain or the like, a plate may be disposed over the opening 48 in the trough bottom so that the small materialwill not drop through the opening 18.

'This elevator will provide a means whereby grain or other material may be elevated and discharged into an upper storage bin, and where electric power is not available, the power member 41 may be in the form of a small internal combustion engine.

. What is claimed is:

1. A portable elevator comprising an elongated frame, a pair of endless conveyor chains having upper and lower runs, driving means for said chains carried by said frame, spaced cleats connected between said chains, a wheeled frame, a pair of links pivotally connected between said first frame and said-wheeled frame, a second pair of links pivotally connected to said wheeled frame and extending oppositely from said first pair of links, rollers carried by said second pair of links engaging beneath said first frame, and means for moving said second links relative to said first frame to thereby raise or lower the latter, said means comprising a sheave secured to said second links, a pulley connected to the underside of said first mentioned frame, a shaft carried by said first mentioned frame, a flexible member formed about said sheave and pulley and adapted to be secured to said shaft and seleetively wound and unwound about said shaft upon rotation thereof to vary the angular relation of said second mentioned link relative to said first mentioned frame, a gear carried by said shaft,.a second shaft carried by said frame at right angles to said first mentioned shaft, a worm gear meshing with said first gear carried by said second shaft oppositely disposed spaced bevel gears carried by said second shaft spaced from said worm gear, a driven bevel gear selectively engageable with one of said opposite bevel gears, means for moving said second shaft from central gear disengaged position to selectively engage one of said oppositely disposed bevel gears selectively to rotate said second shaft and hence said first shaft in either of two directions, said last mentioned means including a double collar on said second shaft and a manually operable pivoted shifting fork engaging said collar, and means including a collet secured to said second shaft and a coil spring surrounding said second shaft positioned between said collet and said wormgear whereby said shaft maybe moved relative to said worm gear without affecting the driving connection therebetween.

2. A portable elevator comprising an elongated frame, a pair of endless conveyor chains having upper and lower runs, driving means for said chains carried by said frame, spaced cleats connected between said chains, a wheeled frame, a pair of links pivotally connected between said first frame and said wheeled frame, a second pair of links pivotally connected to said wheeled frame and extending oppositely from said first pair of links, rollers carried by said second pair of links engaging beneath said first frame, and means for moving said second links relative to said first frame to thereby raise or lower the latter, said means comprising a sheave secured to said second links, a pulley connected to the underside of said first mentioned frame, a shaft carried by said first mentioned frame, a flexible member formed about said sheave and pulley and adapted to be secured to said shaft and selectively wound and unwound about said shaft upon rotation thereof to vary the angular relation of said second mentioned link relative to 7 said first mentioned frame, a gear carried by said shaft, a second shaft carried by said frame at right angles to said first mentioned shaft, a worm gear meshing with said first gear carried by said second shaft, oppositely disposed spaced bevel gears carried by said second shaft spaced from said worm gear, a driven bevel gear selectively engageable with one of said opposite bevel gears, and means for moving said second shaft from central gear disengaged position to selectively engage one of said oppositely disposed bevel gears selectively to rotate said second shaft and hence said first shaft in either of two directions, and means including a collet secured to said second shaft and a coil spring connected between said collet and said worm gear wherebysaid shaft may be moved relative to said worm gear without affecting the driving connection therebetween. I

THOMAS RYAN MAI-IONEY.

References Cited in the file of this patent UNITED STATES PATENTS.

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