US1272419A - Loader. - Google Patents

Description

0. L. GILLILAND.

LOADER.

APPLICATION FILED JULY !7. 1916.

4 suasrs-snsn 1.

Patented July 16, 1918,

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. GILLILAND.

LOADER.

APPLICATION FILED JULY 17. 1916.

Patehted July 16, 1918.

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ZZZPIYJSGS O. L. GILLILAND.

LOADER.

APPLICATION FILED JULY 17, I916.

Patented July 16, 1918.

4 SHEETS--SHEET 3.

O. L. GILLILAND.

LOADER.

APPLICATION FILED JULY 17. 1916- Patented July 16, 1918.

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UNITED STATES PATENT OFFICE.

ORRA L.- GELLILANI), OF SUMMIT, SOUTH DAKOTA, ASSIGNOR TO NATIONAL SHOCK LOADER CO., MINNEAPOLIS, MINNESOTA, A CORPORATION OF SOUTH DAKOTA.

LOADER.

Specification of Letters Patent.

Patented July 16, 1918.

Application field July 17, 1916. Serial No. 109,628.

To all whom it may concern:

. do hereby declare the following to be a full,' clear, and exact description of the invention,

Be it known that I, ORRA L. GILLILAND, a citizen of the United States, residing at Summit, in the county of Roberts andState of South Dakota, have invented certain new and useful Improvements in Leaders; and I such as will enable others skilled in the art to which it appertains to make and use the same. e

My invention relates to improvements in loaders for use in loading bundles, shocks, hay, flax, fodder, manure and, the like; and, to this end,-generally stated, it consists of the novel devices and combinations of devices hereinafter described and defined in the claims.

In the accompanying drawings, which illustrate the invention, like characters indicate like parts throughout the several views.

Referring to the drawings,

Figure 1 is a fragmentary view of the loader principallyin plan, with some parts shown in horizontal section and with some parts shown in different positions by means of broken lines;

Fig. 2 is a right side elevation of the loader;

Fig. 3 is a longitudinal central section taken vertically through the loader;

Fig. 4 is a view in elevation, with some parts sectioned on the'line -1 4 of Fig. 2;

Fig. 5 is a detail view, principally in horizontal section taken on the line 55 of Fig. 2; I

Fig. 6 is a detail view, principally in section on the same line as Fig. 5, but on the opposite side of the loaderf Fig. 7 is a detail view of one of the fork bars, fork-positioning arms and attached chain, some parts being broken away and same parts being shown in section;

Fig. 8 is a left side elevation of the parts shown in Fig. 7;

, Fig. 9 is an inside elevation of one of the combined runway and cam plates removed from the machine; and

Fig. 10 is a detail view in section taken on the line 10-10 of Fig. i). Y

i The numeral 1 indicates a horizontal U- shape main frame, the transverse portion of which forms the rear end of the loader.

This-main frame 1 is. as shown )referabl loader.

made from channel bars, the flanges of which are turned horizontally outward. Theside members of the main frame 1 are rigidly connected at. the center of the leader underside of the tie-bar 2, at the transverse center of the loader and projects both forward and rearward therefrom. The tiebars'2 and 3 are'rigidly connected at their intermediate portions by a pair of edgcwise spaced bars 7, the front, ends of .which are directly secured to the .bar 3 and the rear ends of which are rigidly secured to the bearing plate 6. In addition to the main frame 1, there is a rear wheel frame 8 and a pair of front wheel frames 9, on which frames8 and 9 the main frame lis sup ported. 2 v

The rear Wheel frame 8, like'the main frame l,is U-shapewith the transverse portion thereof forming the rear end of the frame 8. This rear wheel frame 8 is relatively narrow and the front ends of its side members are rigidly connected by a bearing plate 10, on which the bearing plate 6 rests.

The frontend of the frame 8 is connected to the main frame lfor angular steering movement by a king-bolt 11, passed through a bearing 120m the back of the tic-bar 2 and alined perforations in the bearing plates 6 and 10. 'lhisking-bolt 11 is also extended through a tie-bar 13, which connects the side members of the frame 8 below the bean ing plate 10. A draft device 11, to which draftanimals may be attached at each side of the loader, is secured to the extreme lower end portion of the king-bolt 11.

\Vithin the main frame 1. is a segmental wearing channel bar 15. the flanges of which are turned toward the front of the loader. The ends of the bar 15 are rigidly secured to the side members of the main frame 1 and the inte' mediate portion thereof directly ongages the rear end member of said main frame and is rigidly-secured thereto. This wearing member 15 directly rats on the seg- -menta1 rear end member of the frame 8 and,

thereby prevent tilting movement of the main frame '1 on the frame 8.

A single wide traction wheel'lfi is located within theframe 8 and has its shaft 17 journaled in bearings 18 on the side members of,

- .said frame 8 at the longitudinal center thereof. parted to the traction wheel 16 by a hand wheel 19, an upright shaft 20; drum 21 and a'cable 22.' The hand wheel 19 is secured to the upperend of the shaft 20 and the drum f 21 is secured to the lower end'thereof. Up-

per and lower bearings 23. and 2 1, respectively for the shaft 20 are secured, the former to a horizontal member 25- carried by legs 26, and the latter to the rear end member of the main frame 1. The legs 26 are rigidily secured to and project above the main frame 1. The intermediate portion of the cable 22 is wrapped around the drum 21 and the end portion thereof extended in reverse directions and run over guide sheaves 27, journaled on the rear end member of the mainframe l. From the guide sheaves 27, the end portions of saidcable 22 are extended toward each other and anchored at 28 to opposite sides of the frame 8.

Each front wheel frame 9 is, as shown, made up of a pairor horizontally spaced angle bars, having, jour naled therebetween at their front ends a ground wheel 29. The intermediate portions of each pair of these bars are rigidly connected by a bearing 30, and in which bearing is j ournaled the adjacent projecting end of the shaft 1. viously, these bearings 30 connect the front wheel frames 9 to the main frame-.1 for vertical swinging movement. The twomembers of each frame 9, rearward of it's bearing 30., are brought together and rigidly connected by a pair of longitudinally spaced bolts 31. Therearmost of these bolts 31 is a long one and extended through a segmental slot 32 formed in the rear end portion of a east side frame 33 rigidly secured to the respective side mcln er of the frame 1. Spacing thimbles 31 on the long'bolts 31 hold the frames i) properly spaced from the side frames 33 and against horizontal twisting movement. The long'bolts 31"and spacingthimbles 34: are sufficiently loose to permit free oscillatory movements of the front wheel frames 9.

The following connections are provided for raising the rear ends of the front wheel frames 9 and securing the same in different vertical posit-ions. On the rear end member of the main frame 1, is a lock segment 35 to which is fulcrumed a foot lever 35 and a latch lever 35'" located in the same vertical plane, with the latter forward of the former.

Angular steering movements are 1111- connected A rock'shaft 35 extends transversely of the loader and is journaled in the side frames 33. On the outer projecting ends of this rock shaft 35, is a pair of arms 35 connected to the rear ends of the underlying front wheel: frames 9 by short chains 35 to the arms 35 and is connected to the foot lever 35 -by a long rod 35 1 T he adjustment of the wheel frames 9, of "course, raises and lowers the front end of themain-fra-me 1, the purpose of which will hereinafter be setforth. Each wheel frame 9 is connected to the adjacent side frame 33 by a counterweight spring 35. Mounted on -Also fixedto 1 i [the intermediate portion of the rock shaft .35,'is an arm 35 which extends at an angle the rear end of the main frame. 1,,-is.an optal tubular bar 37 and a multiplicity of laterally spaced curved tines 38 rigidly secured to said bar. Each bar 37 is horizontally supf ported by a pair of vertically disposed forkpositioning arms 39. These arms 39 have on their innerfaces, at the frontends thereof, hubs 40 which are telescoped into the respec tive bar 37 and rigidly secured thereto by rivets. On the outer face of each arm 39, are horizontally extended front and rear rollerequippedstuds-iland 12, respectively, and a trunnion 43, formed by reducing the outer end portion of a horizontally extended stud 4L4 integrally formed with said arm at the front upper end portion thereof;

By reference to Fig. 7 it will be noted that the trunnions 43 are located entirely outward of the roller-equipped studs41-42 and each axially alined pair thereof is jour-' naled in bearing lugs 15-, integrally'formed with certain of the links of a pair of sprocket chains 46 and project thereabove. These sprocket chains as hold-the forks 36 properly spaced, one in adva-nceof the other, and im-' part the ehdlesstraveling movement thereto.

Ri'gidly secured to the inner face of each side. member of the main frame'l and the side plate 33, is a vertically disposed casting 47. These castings 47 are of irregular shape and project rearwardly andupwardly from'the front end of the loader.

At the marginal edge of each casting a7, is j a laterally or inwardly pro ecting flange 48 continuous throughout its entire lengl'l-i, with the exception of a passageway 49 at the extreme upper end of said casting. These flanges 4L8 afford thcrewithin endless runways 50 for the chains =16. The central portion of each plate a7, within its runway 50, is laterally ofl'set toward the longitudinal center .of the loader and has formed therein and upper sprocket wheels 62 and 63, re-' spectively, and relatively large and small guide sprocket wheels 6t and 65 respectively.

All of these sprocket wheels are located in the respective runways 50. The sprocket wheels 62 are located at the lower extremities of the castings l7 and their shafts 66 are mounted in said castings. The sprocket wheels 6-t are located forward and slightly below the sprocket wheels 63 and their s-haftsliT are mounted in the castings 47. The sprocket wheels 65 are located rearward ofthe sprocket wheels 62 and slightly thereabove, with their shafts 68 mounted in the castings 47.. The sprocket chains 46 run over the sprocket wheels 6t and under the sprocket wheels 65. Shafts '69, on the inner ends of which the sprocket wheels 63 are fixed, extend through coincident horizontal slots 70, formed in the side frames 33 and castings 47, with their intermediate portions journaled in bearings brackets 71,

These bearing brackets 71 are mounted on horizontal flanges 72 integrally formed with the outer faces of the side frames 33 and are secured thereto in different horizontal ad- 1 justments by bolts 73, extended through cam channels and flanges will be wheel 76 is relatively small slots 74 in said bearing brackets and having screw-threaded engagement with the flanges 72. Obviously, these bearing brackets Tl afford chain tighteners for the sprocket chains 46.

Limited vertical oscillatory movements are imparted to the fork-positioning arms 39, for the purpose of changing the position of the tines 38, by the roller-equipped studs 1 and 42 traveling in the cam channels 59, 60. and 61 and subject to the several cam surfaces, heretofore identified. The relation of the roller-equipped studs it and l2 with the more fully set forth under. a brief loader, which will presently be described.

The sprocket chains 46 are independently driven from thelrartion wheel 16 by the following ctmncctions:

Rigidly secured to the left hand hub of the traction wheel 16, is a large sproclv'et wheel 75 over which and an alined sprocket wheel 76 runs a sprocket chain,TT. The sprocket and is keyed for rotation in a shall TS. hich extends parallel 'to the axis of the tra tion wheel 16 and' is journalcd at its ends la a pair of bearings 79 on the front end portion of the frame 8. Secured to the shaft 78 for rotation thcre description of the with, is a chain wheel 80, which is alined with a chain wheel 81 keyed to the intermediate portion of a long shaft 82, which extends parallel to the shaft 78 and is journaled in the east side frames A crossed chain 63 runs over the alined chain wheels and S1 and is held against lateral displacement therefrom, during the steering movement of the traction wheel 16 by a pair of vertical guide rollers 84 journaled on the bar 2. Fixed on each end of the shaft 82, outward of the frame 1, is a relatively large sprocket wheel 85 alined with a relatively small sprocket wheel 86, keyed for rotation with the overlying shaft 69.. A sprocketchain 87 runs over each pair of alined sprocket wheels 85 and 86. Also keyed to eachshaft 69, outward of the respective s n-ocket wheel 86, is a miter gear 86 which meshes with a miter gear 89, secured to a shaft 90 for rotationtherewith, but with freedom for axial sliding movement thereon. The shafts 90 extend at right angles to the shafts- 69 and are journaled in bearings 91 integrally formed with the brackets 71 and in bearings 92 on the east side frames 83. By the above described driving connections, the sprocket chains 46 are caused to travel in a direction to carry the forks 36 onthelowcr run thereof downwardly and forwardlyand the forks on the upper run thereof backwardly and upwardly.

' -At the forward end of the loader. is an upwardly and rcarwardly inclined deck 92) made up of a multiplicity of horizontally spaced members, between which the tines 38 o:": the forks work throughout part of their traveling movement. The lower end portion of the deck 93 is bent downwardly and rearwardly to a point directly under the sprocket wheels 65 and the upper end p=-rtion of said deck is bent rcarwardly and downwardly and is supported at its highest point or crown by an angle bar 9t. The angle bar 9% is rigidly secured at its ends to side boards 95 which, in turn, are rigidly secured to the main frame 1 and side frames 33. Each member of the deck 93 comprises a pair of laterally spaced angle bars 96 and a flat plate 97 riveted or otherwise rigidly secured to the inturned horizontal flanges thereof and which plates form the top surface ofthe deck The lower ends of the angle bars 96 of each pair gether and rigidly connected to the channel bar by a metal strap 98.

The tines 38 pick up the bundles Z and carry the same upward nearly, but not quite, to the highest point of the deck 93. The next following bundle or bundles are relied upon to carry or shove the uppermost bundle over the crown of the deck 93, from whence the same. will slide or roll down are dra \vn' tolass drum 112 where set.

This combined carrier and elevator is arranged to travel transversely of the loader and deposit the bundles into a' rack or box "on a vehicle, not shown, driven at one side of the machine;

whichfthe pairs of sprocket wheels 102 and 103 aresecured" are jou'rnaled in adjustable bearings'106 and fixedbearings 107, respectively. The bearings 106 are secured to the outerfend of a carrier frame 108 and the bearings 107 aresecured to the outer end of.

vanelevator frame 109; This frame 109 is pivoted on the shaft of the sprocket wheels 105 for vertical swinging movement.

The elevator frame 109 is raised and low-- cred and supported in different oblique positions by a cable 110 secured at one end to a 'pair of branch rods 111 pivotally attached,

one to each side member of the elevator frame 109, near the upper end-portions thereof- The other end of the cable 110 is attached to and adapted to be wound upon a windlass'dru'm 112, journaled in a bracket 113 secured to and projecting above the left hand pair of legs 26-. A suitable'pawl and ratchet device, not shown, will, in actual practice, be provided for holding the wind- The cable 110 runs over guide sheaves-114 and-115; the former is j'our'naled' in the upper'end of the bracket 113 and the latter is journaled on the upper end of an A framellti rigidly secured to the right" hand end of the carrier frame 108.

The carrier frame 108 is made up of upper and lower pairs of angle bars having their.

vertical flanges turned upward and their horizontal flanges turned inward to afford supports over which the chains 100 travel. The guide rollers 104 and sprocket wheels 105 hold the chain 100 onto the horizontal flanges. I

The bundles Z, indicated by broken lines in Fig. 8, during their upward movement on the deck 93, are held against endwise dis placement by the upwardly and outwardly inclined side boards '95. The left hand side board is extended rearwardly completely acros the frame 108 to prevent the bundles from -falling 0H from the left hand end of the carrier. At the rear side of the carrier frame 8, nearest the rear end of the machine, is a side board 17. This side board 17 and the reariend'portion of the deck 93 are so arranged that their lower longitudinal edge portions overlap the upper run of over alined sprocket the chains and terminate close to the ends of the slats 101. I

The upper run of the combined carrier and elevator travels over a deck 118 secured to the horizontal flanges of the upper. pair of angle bars of the frame 108 and adeck 119 secured to the frame 109'. A. brace rod 120 extends between'the carrier frame 108 and the rear end portion of the main frame .1. The combined carrier and elevator is driven by a sprocket chain 121, which runs wheels 122 on the shaft 90 and the shaft for the sprocket wheels 103. It will be noted that the shaft 90 is axially alined with the shaft on which the sprocket wheels are secured.

.The operation, of the improved loader ma be briefly stated as follows: a

s-previously stated, thechains 46 of the pickup device travel in the endless runways I 50 andare driven from the traction wheel 16 through the several'connections, heretofore identified. During the first part of the lower run of the pickup device, all of the studs 41 and 42 travel in the lower section of the runways 50 and the'tines 38 are held in substantially horizontal positions and project inv the direction .of travel of the.

loader. In the latter part of this run of the pickup device, the free upper ends of the arms 39 are rocked forward by the engagement of their lower extremities with the flanges 48 and the pull of the chains 46.

This rocking movement of the arms 39 ca r/ ries the studs 42 into the cam channels"60 and the studs 41 into engagement with the cam surfaces 58. In this position of the arms 39, the free ends of the tines 38 of a given fork are held downward and have a substantially parallel movement with the ground to pick up a-bundle in the path of movement of the improved loader. Under the continued forward movement of the tines 38, the studs 42 enter the cam channels 61 and move toward the forward endsthereof, until the studs 41 have passed the round-- ed ends, which connect the cam flanges 51 and 58, 1

After the studs 41 have passed these rounded ends, the arms 38 are moved endwise in an upward and rearward directionandthe tines 38 are oscillated to lift their free ends and carry a picked up bundle onto the deck 93. During the upward 'run of the pickup device, the studs 41 travel in the upper sections of the runways 50 and the studs 42 pass from the cam channels 62 into the cam channels 59. In the latter part of the upward and rearward traveling movement of the tines38, they are further oscillated to carry their free ends into still higher or releasing positions from the bundle held thereby and, at the same time, they are endwisely withdrawn from. said bundle and from between the members of the deck 93.

Before the held bundle is entirely released by the tines 38, the previously picked up bundle is shoved or lifted over the crown of the deck 93, from whence it rolls or slides onto the carrier section of the combined carrier and elevator. During the limit of the upward travel of the pickup devices, the rear ends of the arms 39 extend into the passageways 49 and the front ends thereof follow the chains 46 around the sprocket wheel 63 and into the lower section of the runway 50. From the carrier, the bundle is delivered to the elevator section of said combined carrier and elevator and deposited thereby into the rack or ho. on a wagon driven at one-side of the loader. The above described traveling and oscillatory movements of the pickup devices are such that the grain will be picked up and delivered to the combined carrier and elevator without shelling the same.

The operator, during the forward traveling movement of the loader, can, by means of the foot lever 35, raise and lower the front end of the main frame 1 to carry the lowermost fork 36 above the obstructions in the field, such as uneven places, stones and stumps, and also to facilitate the picking up of a bundle. The movements of the foot lever 35 are entirely independent of the latch lever 35* and when released, the front end of the loader will assume its normal position .under its own weight. If it is desirable to set the front end of the loader at a higher altitude than that shown in the drawings, the latch lever 35 may be pulled toward the operator and secured in any one of the several notches in the lock segment 35. This movement of the latch lever 35 will pick up the foot lever 35 and carry the same with it. The flexible connections 35 permit the front end of the loader to lift, in

- case the lowermost pickup fork engages and slides over any obstruction in the field, thus avoiding breaking any of the parts of the loader.

iVhile the invention has been illustrated and described as picking up bundles, the same is intended for general use as a loader,

as stated in the first paragraph of the specification.

IVhat I claim is 1. In a loader of the kind described, the combination with a truck, of a plurality of fork bars, means connecting the fork bars and causing the same to move in an endless course, said means including cam-actuated devices for bodily moving the fork bars transversely of the endless course they travel, and pickup forks carried by thefork bars.

2. In a loader of the kind described, the combination with a truck, of a pair of end less chains mounted on the truck and means for driving the same, opposite pairs of camactuated arms pivotally secured to the chains, a plurality of fork bars secured to the arms at points offset from their pivotal connections with the chains, and pickup forks carried by the fork bars.

In a loader of the kind described, the combination with a truck having side plates with cam surfaces and wheels, of a pair of chains arranged to run over the wheels, a plurality of opposite pairs of arms having one of their ends pivotally attached to the chains, studs on the other ends of the arms and engaging the cam surfaces on the side plates, a fork bar rigidly connected to each pair of arms at their intermediate portions, and a plurality of pickup forks carried by each fork bar.

4. In a loader of the kind described, the

combination with a truck having side plates with cam surfaces and wheels, of a pair of chains arranged to run over the wheels, a plurality of rearwardly projecting pairs of arms having their forward ends pivotally attached to the chains, studs on the rear ends of the arms and engaging the cam surfaces on the side plates, a fork bar rigidly connected to each palr of arms at their intermediate portions, and a plurality of pickup forks carried by each fork bar.

5. In a loader of the kind described, the combination with a truck having side plates with cam surfaces and Wheels, of a pair of chains arranged to run over the Wheels, a plurality of opposite pairs of arms having one of their ends pivotally attached to the chains, studs on the other ends of said arms and engaging the cam surfaces on the side plates, a fork bar rigidly connected to each pair of arms at their intermediate portions, and a plurality of pickup forks carried by each fork bar, said cam surfaces and studs arranged to constantly hold the arms with the pickup forks in forwardly projecting positions during the travel of course and for bodily oscillating the fork bars independent of the movement imparted thereto by the chains.

'6. In a loader of the kind described, the combination with a truck having side plates with cam surfaces and wheels, of a pair of endless chains arranged to run over the wheels, a plurality of horizontal fork bars having arms rigidly secured to their ends, a multiplicity of horlzontally spaced and forwardly projecting pickup forks on the fork bars, said arms being ecccntrically secured to the chain with respect to the fork bars, and studs on the arms and engaging the cam surfaces on the side plates, said cam surfaces, studs and arms arranged to impart bodily oscillatory movement to the fork bars independentent of the movement imparted thereto by the chains.

7. In a loader of the kind described, the combination with a truck having side plates with an endless runway and cam surfaces on their endless" each thereof," and Wheels joilrnaled in said tory mcvement or the arms,;and studs carrunways, of a .pair of endless chains ried by the arms and having erlgagement mounted in said runways and arranged to with the ,cam surfaces {for positioning the I run over the Wheels, apluralityjofhorizontihes- A 5 tal fork bars hztving at their en ds arms, a. In testimony whereof I aflix'm y signature 15 multiplicity of horizontally spaced and forin presence of-two Witnesses. 1 wardly projecting tines rigidly secured t0 .QRRA L,-GILLILAND. the fork bars; said armsfigbe'ing eccentrically Witnesses: secured'tc the chains with respect to the E. A. CHRISTENSEN,

o fdrk bars to permit limited vertical oscillw A. C. BARNETT.

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' i Washingtcn, D. 0.

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