US1498987A - Loader - Google Patents

Description

` June 24 1924.,

H. H. vBRBER LOD'E R Filed Jan. 6.

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Emme 24, E924@ H. H. BARBER LOADER l Filled dan. 6-

1921 2 Sheets-Sheet 2 .Hei 24,1924.

" E f T A vE S HARRY HJ. BARBER, or AURORA, ILLINOIS,

LOADERu Application med January e, 1921. serial No. 435,480.

To all whom t may concern.'

Be it known that 1.HARRY H. BARBER,

a citizen of the United States, residing at Aurora, in the county of Kane and the State of Illinois, have invented certain new and useful Improvements in Loaders, of which the following lis a specification, reference being had tothe accompanying drawings, forming a part thereof.

This invention relates to a power-driven loaderof the endless belt type and its purpose is to provide a machine of this character especially adapted to handle snow for expeditiously cleaning city streets. It consists ofA the features and elements hereinf in the drawings after vdescribed and shown as indicated by the claims.

In the drawings Figure 1 is a side elevation of a 'loaderI embodying this invention.

Figure 2 is a transverse section taken through the conveyor and its frame as indicated at line, 2 2, on Figure 1, but not including. the vehicle frame.

Figure 3 is a detail plan view of the loader with a specially designed scoop or plow associated therewith, the view being taken as indicated at line, 3 3, on'Figure 1.

receiving end of the Figure Lvl is a detail plan view of cer' tain adjusting g devices being taken as indica'ted at llne,

4 4, on Figure 1.

Figure 5 is a side elevation of the upperl and' discharge end of the conveyor showing the adjustable wing for directing discharge. v

Figure 6 is a transverse section taken as indicated at the line, 6 6, on Figure 5.

Figure 7 is a horizontal plan view of the lower end of the conveyor showing the receiving scoop associated therewith. 1

Figure 8 is a medial section of the parts of the conveyor and of the scoop, shownV in Figure 7, being indicated at line, 8 8, on Figure 7 l Figure 9 is a detail section taken as indica-ted at line, 9 9, on Figure 8 to show the contour of the scoop.

Figure 10 is a partial side elevation showing a take-up for the drive chain.

The endless belt which constitutes the conveyor element of this loader is carried upon an upper drum, 1, and lower drum, 2, journaled in opposite ends of the inclined frame, 3, which may be fabricated in a lAssIGNoR 'ro BARBER-G come :1. n: or AURORA, ILLINOIS, A CORPORATION or ILLINOIs o vsuitable sprocket lthe accumulation o ,ofsnow or ice upon the drums, 1 and 2, would result in wasteful slippage of the belt ward along well understood manner from suitable members suchv as plates and angles forming lateral trusses and the necessary cross connections between them to provide a fairly rigid mounting for the belt and its carrying drums. The load supporting portions, 4, of the belt may consist of any suitable fabric or rubber, or combination of the two such as is' commonly vand this belting, 4, is attached at its lateral margins to steel chains, 5, which travel over wheels associated with the drums, 1 and 2, at'their ends. This is of particular importance when the conveyor is used for handling snow or sleet because even a small amount thereon if friction were depended upon for the drive. The belt,4, is attached tothe chains, 5, by suitable clips, 6, disposed at intervals along the chains and also' by means of flights, 7, of angular cross-section which used for this purpose are attached at their ends to the chains, 5,

by means of the same type of clips, 6, and to which the belt is riveted lor bolted at intervals in its width as indicated in Figure 3. The flights of course serve to retain the load of snow or other material picked up by the belt as-itiis carried up the incline to the dischar e end where the belt passes over the pul ey or drum, 1. The load is also retained and con.- lined upon the belt by means of side boards, 8, supported on the frame, 3, and preferably overhanging the chains, 5, as shown in Figure 2.

any suitable vehicle which, however, is preferably ofthe crawler tractor type indicated 9 at 9, in Figure 1 and surmounted by a rectangular frame from whose upper horizontal beams, 10, the conveyor frame is suspended by links, 11, pivoted to the beams by trun nions, 12, and to the frame, 3, by trunnions, 13. Any suitable motor, which may be an internal combustion engine such as that indicated at 14, is carried on the vehicle and connected by reduction gearing to the drive belt or chain, 15, runningjupon the drive sprocket,y 15a, which is fixed on one end of the shaft, 15b, of the drum or pulley, 1. y

At the lower or receiving end the conveyor frame is'provided with a duplex plow and scoop the bottom of which is iformed by a but the bottom blade, 16, is` considerably wider and its /laterallyextending portions continue upwardly past the space, 17 and alongside the belt, 4, in warped wings, 18, which converge toward the belt so as to direct material thereonas it is forced up along said wings by further accumulations ot material gathered upon the blade, 16, as the vehicle, 9, advances. Y

The wings, 18, are supplemented in their gathering action by blades, 18,v extending upward Irom the lateral margins-0f the bottom blade, 16, and also projecting forward from the ends of its lower edge so as to plow their way into a pile of snow or other material as the vehicle advances, and thus to define the width of the clearing to be made by the machine. The upper edges of 7the wings, 18, and the supplemental wings or plow-shares, 18a, are bent over at 18", curving inwardly toward each other, somewhat in the manner of a plow mold board so that when the material piles h-igh in the scoop, it will be thrown over toward the middle ot the scoop and onto the belt instead of spilling over the upper edges of For city street cleanin durin or after a snowstorm,`snow will requeiit y be moved from the middle of the street. toward the curbs by other plows 'and then picked up by a loading machine of this type and iscliarged into motor trucks for hauling away; 'p

to protectthe supplemental wings, 18, as they work beside the curbs they may/be reinforced by spaced parallel walls, 18, extending from the ground to a limited height beside the wings, 18a, and-secured thereto at the margins as seen in Figure 7.

As the crawler, 9, travels forward, its progress is resisted by the 'material encountered by the scoop and the driving torce for moving the scoop into the material is transmitted directly1`4 from the crawler,`9, to the conveyory frame, 3, by a pair of thrust beams, 19, pivoted at their rear ends to brackets, 20, on the frame which surmounts the crawler,l 9, and with their forward ends pivotally attached to the axle, 21` of the drum, 2. -To assist the blade, 16, of the scoop in riding the road surface, it is re-enforced at its laterally extending portions beyond the opening, 17, by approximately horizontal plates, 22, forming shoes extending bers, 27 i tlie wings.

rearwardly from the edge of the blade, as.

seen in Figures 1 and 8. Between the shoes, 22, and below the opening, 17, a curved plate, 23, forms a boot to retain the material temporarily'lodged in the 0pening,'17'. Side plates, 24, suitably flanged and connected to the shoes, 22, serve to stili'en and support them. The blade, 16, itself is resent'orced by a transversely positioned angle member, 25. secured to its under surface and also by oblique braces, 26, connecting the ends of the angle, 25, with members, 27. attached to the upper edges of the plates, 24. The wings, 18, may also be braced if desired by obliquely extending ariiis, 28, connected to the mem- ',Ihe entire scoop consisting of the blade, 16, plow wings, 18 and 18, and the shoes, 22, with. their side plates, 24, is pivotally mounted on the eiidsot the axle, 21, of the drum, 2. This permits adjusting the scoop up and down through a limited range to accommodate it tothe roads surface or prevent it from being snagged uponv any small obstruction therein without altering theangle of the main conveyor frame, 3. vSuch adjustment is effected by a hand wheel, 29, on ashaft, 30, journaled on the extending ends of the trame members, 10, the shaftcarrying sprocket -wheels, 31, for endless chains,32, guided upon idler wheels, 33, and connected with the rearwardly extending arms, 34, which are attached rigidly to the side plates, 24, of the scoop assembly. The operator standing on the platform,`35, at the side of the vehicle frame is thus able to suddenly lift the blade and the scoop above its normal working position and to quickly readjust it as closeto the road surface as his judgment dictates. For moving the machine about when not in use, or for getting itl into a convenient shelter, the conveyor frame, 3, may be swung to a more nearly horizontal `ositioii b v means of the hand wheel, 36, operating the worm37, and gears, 38, on the shaft, 39, whose drums. 40, are thus turned to wind the cables, 41. which are attached to the conveyor frame near its llower end as indicated at 42. Notwithstanding the fixed length of the thrust beams, 19, such' 2, so that the lOO be excessively extended and the material gathered by it. will be picked up b v the beit without the necessity oi orcing it up the incline any great distance. The use of the 5, as an integral part of the belt affords a means of driving it without dan er of slippage, and when the loader is empoyed for handling snow, these chains may travel directly in the angles, 43, which form the longitudinal members of the conveyor frame, as indicated in Figure 2, the snow and ice acting as an adequate lubricant between the chains and the angle members to prevent excessive wear. Obvlously if the material handled were not of this nature, the chainscould be ,provided with idler wheels to support them in the conveyor frame.

s the snow-or other material is discharged over the upper pulley or drum, 1, it will fall directly into the receptacle provided, which will ordinarily be the body of a motor truck or wagon. Since it is not always easy to back a truck or wagon under the end of the conveyor in a perfectly central position, the guard plates, 44, at this end lateral chains,

'are provided with hinged depending wings,

I 45, preferably connected by a link, 46, so as to converge Adownward and normally hanging as shown in section in Figure 6, but operable by means of arock shaft, 47, to discharge the material at either; side of the cendischarge of material in windy weather, both tral position,A as indicated in dotted lines in said Figure 6, in which the truck body is also shown in (otted lines at A. 'The depending wings, 5, also serve to control the by shielding it from the wind and by deflecting it if necessary to vcounteract the effect of the wind striking it. below said wings.

The machine is designed to be operated and controlled by one man'under ordinary circumstances, though the loading of the material into the scoop may be assisted to some extent by oneor two shovelers. The crawler vehicle is controlled in its move# ments by two levers, one of which, indicated at 48, operates the forward driving clutch Vwhen moved in one direction, or .connects the reverse drive when shifted to its other limit'. The lever, 49 is arranged to selectively. control brake vbands for retarding or arresting one or the other of the two crawlers so that by virtue of a differential gearing connecting them, the one whichis not h eld will assume the drive and the vehicle will -travel in a curve. All necessary steering can be accomplished in this way as is well understood.

Afthird lever, 50, may beunderstood as. operating any suitable form of clutch for connecting or disconnecting the belt conveyor form, 35, and the adjusting from the engine, 14. rlhus the vehicle and the conveyor may be `driven simultan ously or independently at will. The handle, 47, of the rock shaft, 47, extends within reach of the operator as he stands upon the platwheels, 29 and 36, are simultaneously accessible to him while he is operating the vehicle.

By reason of the oating suspension of sults in a longitudinal movement of the frame, causing the links, 11, to swing about their trunnions, 12. lSince the drive chain, 15, connects the wheel, 15, at the upper vend of the frame, 3, with a drive sprocket, 51, on the counter shaft, 52, lixedly journaled on the vehicle, the distance between these two centers will be altered by adjustment of the lower end of the frame, 3. A take-up wheel, 53, is therefore journaled at the end of a swinging arm, 54, fulcrumed at its lower end on a plate, 55, of the vehicle frame. A link` 56, is pivotally attached at one end to the arm, 54, at a point intermediate its fulcrum and the wheel, 53 which it carries, and said link is connected for control to the conveyor frame, 3, by means of a bracket, 57, attached to the plate, 58, of said frame,a cushion spring, 5.9, being inserted between the bracket, 57, and the adjusting nut, 60, on the end of said link. The arm, 54, being connected to the'frame, 3, by the' link, 56, is lswung about its fulcrum as the frame oats backwards or forwards upon its supporting links, 11, and thus acts as a lever vto multiply the` longitudinal movement of the frame, 3, so as to add or subtract the requisite Yamount from the effective length bothV plies of the chain, 15, and keep it sufliciently ing ply of the chain, 15, is further supported upon a fixed idler, 61, journaled on the beam, 10, so as to prevent it from .encountering the upper edge of a truck body when the latter is backed under. the dischar e end of the conveyor.

I diam:-

. 1. The combination of a vehicle and an endless belt conveyor carried thereon extending from a point near the ground ahead of the vehicle to an elevated discharge point rearward of the vehicle frame with a frame supporting said conveyor belt formed to overhang a clearance space at the rear of the vehicle high enough to admit a wagon or truck to receive the dischargefrom the conveyor, a pair of depending lateral wings attached to the conveyor frame and between which the material falls when discharged from the conveyor; and means for inclinlng said wings at will to direct the discharge.

' 2. In'the combination defined in claim 1,

llt)

a pair of depending lateral wings hinged to Wheel connected thereto,

discharge and means connecting said wings for simultaneously inclining them toward either side of the path of the vehicle to direct the discharge.

3. The combination, of a vehicle frame with a load-gathering fixture carried at the forward end and a frame for an endless belt conveyor extending fore and aft of the vehicle and suspended thereon by hangers adapted to swing fore and at of the vehicle together with a strut 'projecting forwardly from the vehicle VJframe for engagement with the forward end of the conveyor framewfor transmitting the pushing force of the vehicle directly thereto. d j

4. In the combination defined in claim 3, said load-gathering ixture being supported the forward end of the conveyor frame.

5. In the combination defined in claim 3, said strut being pivotally attached to the vehicle frame an to the conveyor frame and means for vertically adjusting said conveyor frame up on its hangers.

6. In combination a vehicle and an endless belt conveyor mounted in an in lined position thereon, said conveyor including a frame; means bywhich the forward end of the conveyor frame is adjustably supported upon the vehicle and a ulcrum'ior 'said conveyor frame rearward lof saidy adjustable support and movable ore and aft with respect to the vehicle `frame together with a thrust bar pivotally attached at one end to the lower part of otally connected at the other end to ward end of the conveyor frame.

7 In the combination a power plant on the vehicle with a drive a driven wheel associated with the conveyon belt at one end of the conveyor frame and a drive' chain connecting said wheel with the drive wheel on the vehicle vtogether with an idler for said chain mounted for movement ore and att on the vehicle trame-and means connecting its mounting with the conveyor frame to eect such fore and aft movement as the nlcrum of the conveyor'frame shifts upon thejvehicle. e

8. In the combination defined-in claim 6, a power plant on the vehicle with a drive wheel connected thereto, a driven wheel associated with the conveyor belt at the upper end of the conveyor frame and a drive chain the forthe vehicle frame and p1v defined in claim 6,l

connecting said wheel with the drive wheel on the vehicle together with atake-up idler for said chain mounted on a swinging arm fulcrumed on the vehicle with. a link connecting the conveyor frame with said arm ifor shifting the take-up wheel in proportion veyor frame upon its supporting links.

9'. In the combination of a vehicle with a pair of plows carried at the forwardY end, spaced apart and formed to deflect material toward each other into the path of advance -o the vehicle, and an endless conveyor mounted on the vehicle in an inclined osition with its lower end arran ed to pic up said material from between t e plowe, said plows being rigidly connected together by a transversely extending bottom plate to orm a scoop adjacent the lower end of the conveyor, said bottom p late being spaced away rom the lower end of the conveyor to form a receiving boot and a bottom plate for said boot supportedl on the conveyor frame independently of the'bottom of the scoop.

10. In combination a vehicle with aloadgathering fixture carried at the forward end and an endless belt conveyor mounted on the vehicle in position to receive said material and transfer it rearwardly for discharge, the conveyor belt comprising a widt of belting of flexible material withmarginal drive chains secured thereto, a frame-sup-V porting said conveyor and lower longitudinal railsV at each side, said rails being of angular 'cross-section, each having a aaige extending vertically and a liange extending transversely thereof with the vertical ianges spaced apart to receive the conveyor belt between them and the horizontal anges extendin inwardl to rsupport the chains of said elt in tv eir travel.I

to the longitudinal movement of the con- 11. In the combination defined claim 10, 4

side boards on the conveyor frame extending vertically at the margins ofthe belt to retain material thereon and disposed chains overhangrectly above said marginal ing' them. In testimon hereof, 'I have hereunto set my hand at' cago, Illinois,

this 5th day of January, 1921. f

"i BER.

belt including upper

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