US1000974A - Belt conveyer. - Google Patents

Description

L. ANDERSON. BELT GONVEYER.

APPLICATION FILED MABHZI 1911. 1,000,974.

.Patented Aug. 22, 191i.

lllnl coummu PLANOG LOUIS ANDERSON, OF CHICAGO, ILLINOIS.

BELT coNvEYEB.

Specification of Letters Patent.

Patented Au". 22, 1911.

Application filed March 27, 1911. Serial No. 617,302.

To all whom it may concern.

Be it known that I, LOUIS ANDERSON, a citizen of the United States, and resident of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Belt Conveyers, of which the following is a specification, and which are illustrated in the accompanying drawings, forming a part thereof.

The invention relates to belt conveyers, and more particularly to those used upon harvesting machines for conveying the freshly cut grain to the bundle forming mechanism. Such conveyers commonly comprise a continuous web of considerable width and the web is usually made of cotton fabric. This fabric is stretched by continued use and soon becomes permanently elongated.

The object of the invention is to provide improved take-up mechanism for belt conveyers of the kind described, and the invention contemplates the use of an adjustable bearing for the end roll of a belt conveyer at each side of the belt, and means for simultaneously adjusting both of said bearings from one side of the belt, including a removable shaft which normally extends be tween the two turns or lengths of the belt.

In the accompanying drawings Figure 1 is a plan view of a belt conveyer embodying the features of improvement provided by the invention, some of the parts being broken away; Fig. 2 is a sectional view taken on the lines 22 of Figs. 1 and 4; Fig. 3 is a section view taken on the line 3-3 of Fig. 2; and Fig. 4 is a detail side ele vation.

A pair of parallel rigid frame members are shown in the drawings at 10 and 11. Each of these frame members extends along one side of the belt conveyer for its entire length, and the two members will ordinarily be parts of a unitary rigid frame, such, for example, as the frame of the reaping platform or deck of a harvesting machine. continuous conveyer belt or web is represented at 12. This belt is preferably of sufiicient width to extend substantially the entire distance between the frame members 10 and 11, and it is supported in extended position byend rolls 13 and 14 which extend between the frame members.

One of the end rolls, as 13, will be mounted in any ordinary way as by gudgeons 15,16, provided at the opposite ends of the roll and turning, respectively, in bearing blocks 17 18, fixedin position on the frame members 10 and 11. A. sprocket wheel 19, applied to the end of one of the gudgeons, as 16, serves for receiving power to turn the roll 13 and drive the conveyer.

The roll 14 has gudgeons 20, 21, at its opposite ends, and these gudgeons are re-' movably engaged, respectively, with sliding bearing blocks 22 and 23, most clearly shown in Figs. 3 and 4. Each of the bearing blocks, 22, 23, is notched adjacent its outer end, as indicated at 24, for rotatably receiving the corresponding gudgeon 20, 21, and it is slidingly mounted between longitudinal ways 25, 26, provided on the frame member as 10, 11. A. cap plate 27 detachably secured to the Ways 25, 26, over the bearing block as 22, 23 by screw bolts 28 prevents displacement of the bearing block. A gear rack 29 extends longitudinally upon one side of each of the bearing blocks 22, 23, and pinions 30 and 31, engage the gear racks 29 of the bearing blocks 22, 23, respectively, for longitudinally shifting the bearing blocks to take up slack in the web 12. The pinions 30 and 31 are transversely journaled in the frame members 10, and 11 respectively, and they are preferably mounted in apertures, as 32 formed in the frame members below the slide ways 25, 26.

Provision is made for simultaneously rotating the pinions 30 and 31 from one side of the conveyer, whereby the two ends of the roll 14 are simultaneously adjusted. As shown, the pinions 30 and 31 are mounted in axial alinement and the shaft of each projects inwardly from the frame member 10, 11, as indicated at 33, 34. The projecting end, as 33, of the shaft of one ofthe pinions, as 30, is jointed, as indicated at 35, and the shaft is provided with an outwardly facing shouldered abutment 36 located beyond the joint, and removable means are provided for rotatably connecting the projecting ends 33, 34, of the shafts of the two pinions 30 and 31. As shown, a tube 37, having its opposite ends socketed, as indicated at 38, 39, to telescopically engage the ends 33, 34, of the pinion shafts, is employed. To fit the tubular member 37, in place one of its ends, as 38 is applied to the end as 33 of the shaft when the joint 35 is flexed, and the tubular member is then telescopically moved upon the end of the shaft to permit the other end, as 39, of the tubular member to clear the end 34 of the other pinion shaft when the joint 35 is straightened out. When the end 39 of the member 37 has been brought into alinement with the end of the shaft 34, the member 37 is moved to the right, as viewed in Fig. 2 of the drawings, to cause its socketed end 39 to receive the end 34 of the pinion shaft. Preferably a spring 40, coiled about the shaft end 33, in front of the shoulder 35, serves for preventing accidental longitudinal displacement of the member 37 and in order that rotation imparted to one of the shafts, as 34, may be communicated to the tubular member 37 and thence to the shaft 33, the sockets 38 and 39 upon the ends of the member 37 are designed for non-rotative engagement with corresponding shaft end 33 or 34. As shown the side walls of the sockets 38, 39, are longitudinally slotted, as indicated at 41, 42, and laterally projecting studs or pins 43, 44, are provided on the shaft ends 33 and for entering the slots 41 and. 42 respectively. The stud 43 provided upon the shaft 33 adjacent its end provides a stop for preventing the removal of the spring when the member 37 has been removed.

Any convenient means may be employed for rotating the gear pinions 30 and 31 from one side of the conveyer. As shown, a crank arm 45 is mounted upon the shaft of the pinion 31 beyond the frame member 11, coo'perating ratchet and pawl members 46, 47, mounted, respectively, on the shaft of the pinion 31, and upon the adjacent part of the frame member 11 normally prevent counter rotation of the pinions 30 and 31, whenthese have been rotated by the crank 45 to elongate the conveyer web 12. I

The conveyer web may be readilyremoved when the tension upon it has been slackened by releasing the pawl 46 from the ratchet 47 and reversely turning the pinions 30and 31.

'viewed in Fig. 2, against the efiort of the spring 40, and after it has been thus disengaged from the inner end of the shaft of the pinion 31 it may be readily withdrawn from the shaft end 33 if the joint 35 be flexed.

I claim as my invention 1. In combination, a roller, a continuous web turning over the roller, a gear pinion journaled in a fixed support at each side of the web, the two pinions being in alinement, a rack bar engaging each of the pinions, a bearing for the roller carried by each of the rack bars, a crank for turning one of the pinions and a removable jointed shaft rotatably connecting the pinions.

2. In combination with a continuous conveyer web and an end roll for supporting the web in extended position, a pair of bearings for the roll slidably mounted upon opposite sides of the web, a rotatable member for adjustably sliding each of the bearings, and a removable jointed shaft extending between the lengths of the conveyer web and operatively connecting the two rotatable members.

3. In combination a pair of separated spindles rotatably mounted in alinement, one of the said spindles being ointed, and a connecting member having socketed ends adapted for non-rotative telescopic engagement' with the adjacent ends of the spindles, the said connecting member being of greater length than the distance between the spindles.

LOUIS ANDERSON. Witnesses M.. C. ALLEN, CHARLES. B. GILLsON.

=O opies-of this patentmay be obtained for five cents each, by addressing the Commissioner of Patents,

1W ashington, D. C.

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