US957831A - Corn-harvester. - Google Patents

Description

P. D. 6; A. D. WILSON.

001m HARVESTER. APPLICATION FILED MARA, 1908, I

Patented May 10, 1910.

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Patented May 10, 1910.

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Patented May 10, 1910.

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Patented May 10, 1910.

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Patented May 10, 1910.

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I avian/M s JfLlOlJLMQ, W "a GUM/v?" K9. l W4 K FREDERIC D. WILSON AND ALBERT D. WILSON, F OTTUMWA, IOWA.

CORN-I-IARVESTER.

To all whom it may concern:

Be it known that we, FREDERIO D. WVIL- SON and ALBERT D. VVILsON, citizens of the United States, residing at Ottumwa, in the county of Wapello, in the State of Iowa, have invented certain new and useful Improvements in Corn-Harvesters, of which the following is a specification,

Our machine is an invention relating to the harvesting of Indian corn or maize and has for its object the provision of an improved machine which detaches the cars from the stalks and removes the husks therefrom and automatically delivers the ears unhusked.

Our invention consists in certain novel constructions and combinations of parts more particularly described and claimed hereinafter and illustrated in the accompanying drawings, in which Figure 1 is a front plan View, partly broken away, of our improved machine; Figs. 2 and 3, side views; Fig. 4, a rear elevation; Fig. 5, a plan view, partly in section; Fig. 6, a detail view of the snappingrolls and their "mountings; Fig. 7, a detail view of the knocker-arm and its mounting; Fig. 8, a cross-sectional view of the husking-rolls; and Fig. 9, a detail view of the buffers for steadying the action of the knocker-arm.

In the drawings, similar reference characters indicate corresponding parts throughout all of the views.

The base-frame of our machine comprises the longitudinal beams 1, 2, and 3, connected by means of beam 4 at their rear.

5 indicates the main drive-wheel journaled on stud-shaft 6, secured to beams 1, 2, and 7 indicates a traction-wheel journaled on shaft 8', secured to beam3 and bar 9, having its ends secured to beam 3 and inclosing said wheel 7.

10, 11 and 12 indicate upright bars on which is journaled the main shaft 13 of the machine driven by means of chain 14 geared from sprocket-wheel 15, secured to the drive-wheel 5, and sprocket-wheel 16, keyed to intermediate shaft 17, journaled on beams 1 and 2 at the rear of wheel 5, and another chain 18, connecting a second sprocket-wheel 19 on said shaft 17 and sprocket-wheel 20 on the main shaft 13.

21 indicates a brace connecting upright l2hand bar 9.

22 indicates a cross-bar connecting the Specification of Letters Patent.

Application filed March 4, 1908.

Patented May 10, 1910. Serial No. 419,238.

front ends of beams 1 and 2 and then bent ownwardly, as shown at 23, and horizontally, as shown at 24.

25 indicates a brace-bar connecting the front end of beam 2 and upright 11, 26 a similar brace-bar connecting the front end of' beam 3 and upright 12, and 27 a crossbar connecting said brace- bars 25 and 26 near their upper ends.

28 indicates a bar secured at its rear end to cross-bar 27, While its front end 29 is secured to bar 30 at one end. The other end of bar 30 is secured to horizontal extension 24 of cross-bar 22, this construction forming the guide-point for the stalks 011 one side of the machine.

31 and 32 indicate bars secured to beam 3 and bar 9, respectively, which are secured together at the front of the machine and form the guide point on the opposite side of the machine.

33 indicates a cross-beam connecting the top ends of uprights 10, 11, and 12, and 34 a slanting platform secured to cross-beam 33 at its upper and rear end, formed with an opening indicated at 35, and its lower and front ends pointed, as shown at 36, and 37, and secured to the angles formed by bars 29 and 30 and bars 31 and 32, respectively.

38 and 39 indicate sprocket-Wheels keyed to stud- shafts 40 and 41, respectively, said shafts 40 and 41 being driven by means of beveled gear- wheels 42 and 43, meshing'with beveled shaft 13.

46 indicates idler sprocket-wheels journal ed on platform 34, and 47 and 48 chains geared to said sprocket- wheels 38 and 39, respectively, and to idlers 46, said chains being arranged on each side of opening 35 and having fingers 49 projecting laterally therefrom that extend over opening 35 and serve to carry the tops of the standing stalks back while being operated on by the snappingrolls to be hereinafter described.

50 indicates a divider secured to the upper end of platform 34, between chains 47 and 48, to assist said chains in carrying away broken portions of the stalks that are not disposed of by the snapping-rolls, tobe hereinafter described, said pieces of stalks being carried over the upper end of the platform 34 and dumped in the rear of the machine or at either side.

51 and 52 indicate housings over the two sides of the platform 34 to prevent pieces gear- wheels 44 and 45, keyed to of stalks, leaves, etc., from interfering with the chains 47 and 4S, and as said housings are formed pyramidal, as shown, serve also to straighten any listed stalks that may be encountered so that they are made to pass through the snapping-rolls, hereinafter described, in a substantially upright position.

The snapping- rolls 53 and 54 are cylindrical in shape, except their forward ends, which are pointed, as shown at 55. Roll 53 has its front end 55 journaled in box 56 secured'to bar 29 and its upper end journale'd on cross'bar 27.

57 indicates a beveled gear-wheel keyed to shaft 13- and meshing with a beveled pinion 58- secured to the end of extension 59 on roll 53 torotate it. The upper end of roll 54 is journaled in box 60, slidably mounted in slot 61 in the cross-bar 27, and its lower end in a box ('32,. slidably mounted in a slot 63 in bar 64,. secured to bars 31 and 32.

65 indicates expa-nsible coil-springs interposed between journ-al- boxes 60 and 62 and clips 66 to hold the roll 54 normally in engagement with roll 53, but permitting side play of said roll 54, so as to accommodate the space between the rolls to the thickness of the stalks being operated upon.

67 and 68 indicate meshing pin-ions secured to extension 59 and the end of roll 54, respectively, to insure simultaneous rotation of the rolls.

The upper half of rolls 53 and 54 are formed with longitudinal corrugations 69 that serve to pull the stalks downwardly as they pass through the rolls.

70 indicates spiral projections from the surface of the rolls 53 and 54, which may be formed integral therewith, or formed by wrapping and securing bars thereon.

71 and 72 indicate uprights at the rear of beams 1 and 3, 73 a cross-bar connecting the upper ends of said uprights, and 74 and 75 horizontal bars connecting the tops of uprights 71 and 72' with the upper ends of uprights 10 and 12, said structure forming a rectangular open frame at the rear of the machine. This frame,- as well as other parts of the machine, hereinbe-fore as well as hereinafter described, is braced so as to make it substantial and at the same time make the machine as light as possible, it being thought unnecessary to fully describe said braces as they do not enter into the novel features of the invention and would make the description unnecessarily prolix.

76 and 77 indicate uprights seen-red to beam 2 and having a horizontal bar 78 connecting them, on which are j ournaled the upper ends of husking-rol-ls 79, the lower ends of said rolls 79 being journaled on be 80, secured to uprights 10 and 71 by means of bars 81. We have shown the huskingrolls feur in number and geared together in pairs by means of pinions 82 at the upper ends of the rolls, the outer of said rolls being connected by means of universal joints 83 with one end of shafts 84 and S5. The other ends of shafts S4 and 85 are journaled on cross-bar 86, secured to uprights 12 and 72 intermediate of their ends.

87 indicates a sprocket-wheel keyed to shaft 13, 88 and 89 sprocket-wheels keyed to shafts 84 and 85, respectively, and 90 a chain geared to said sprocket-wheels and to idler 91, journaled on shaft 92, secured to uprights 12: and 77..

The inner two of the husking-rolls are journaled on arms 93, pivotally secured to bars 78: and 80, and springs 94 connect the free ends of said arms 93, this arrangement allowing a suflicient play to the rolls to permit them to accommodate themselves to the differing thickness of husks passing between them.

95 indicates a shaft journaled under platform 34 and over the upper end of snapping-roll 54 and having its upper end projecting above the upper edge of said platform 34 and formed with crank 96.

97 indicates a crank on the end of shaft 84, and 98 a pitman connecting the ends of cranks 96 and 97, so that the rotation of said shaft 84 imparts a rocking motion to shaft 95.

99 indicates arms rigidly secured to shaft 95 and 10.0 a bar connecting the free ends of arms 99-, having teeth 101 projecting therefrom.

102 indicate bars secured at their upper ends near the outer edge of platform 34 and having their lower ends secured to bar 26,. said bars 102 being provided with holes 102, and 103 indicate rods secured to arms 99 and slidably mounted in the holes 102 on said bars.

104 indicates coil-springs on rods 103 on each side of bars 102, and 105 shoulders or projections on said rod and engaging one end of the springs, while the other ends of the springs engaging the bars 102 act as butters to steady the action of the shaft. 95 and arms 99 and bar 100, which constitute the knocker-arm for snapping the ears of corn from the stalks passing through the machine and which throw them into the conveyer 106. Conveyer 100 consists of the frame 107 secured at its lower end to extension 24 of crossebar 22 and at its upper end by cross-bar 73, being also supported intermediate of its ends by means of bar 27.

108 indicates a roller journaled adjacent to the upper end of the frame 107 and having a sprocket-wheel 109 keyed to its axle which is geared to sprocket-wheel 110 on shaft 84 by means of chain 111.

112 indicates an idle roller journaled adjacent to the lower end of frame 107, and 113 a conveyer apron mounted on: said rollers and having ribs 114 to carry the cars snapped offthe stalks by the knocker-arms above described to the trough 115 leading to the husking-rolls 79. Said trough 115 is secured on the rear side to uprights 71 and the upper end of conveyer-frame 107, and its other side to braces 116 and 117 secured to horizontal bars 78 and 80.

The trough 115 extends above the husking-rolls and has a spiral 118 mounted therein and rotated by means of chain 119 geared to a sprocket-wheel 120 on shaft 84 and sprocket-wheel 121 keyed to an extension 118 projecting through the end of trough 115. The purpose of spiral 118 is to straighten the ears of. corn delivered into the trough from the conveyer-apron 113, so that they reach the husking-rolls 79 end foremost.

A conveyer may be employed at the end of husking-rolls 79 to carry the husked cars into a wagon or other receptacle at the side of the machine or the ears may be dropped at the side of the machine.

122 indicates the draft-beam secured to cross-bar 22.

123 indicates a beam secured to beam 1 and supported by braces 124, secured to bar 22, having an upright 125 on its front end on which is fulcrumed a bell-crank lever 126 fulcrumed thereon. One arm of bell-crank lever 126 is connected with draft-beam 122 by means of rod 127, while its other arm is connected with operating lever 128, journaled on beam 123 by means of rod 129.

130 indicates a segmental rack secured to beam 123 to engage a pawl 131 on lever 128, this construction providing for adjusting the front end of the machine while in operation to suit the condition of the surface of the harvest field. Coil-springs 132, secured to bell-crank lever 126 and to rod 133 secured to upright 125 operate to steady the action of said adjusting levers.

Having thus described our invention, what we claim is 1. In a corn-harvester, the snapping-rolls inclined downwardly in the direction of the draft, a rock-shaft parallel with said snapping-rolls, a knocker-arm secured to said rock-shaft and arranged to reciprocate over said snapping-rolls to snap the ears of corn from the stalks passing through the machine, means for operating said rock shaft, husking-rolls, and a conveyer to carry the snapped ears to the husking-rolls, substantially as shown and described.

2. In a corn-harvester, snapping-rolls, a rock-shaft parallel with said snapping-rolls, a knocker-arm secured to said rock-shaft and having laterally-extending teeth, substantiallyas shown and described.

3. In a corn-harvester, snapping-rolls inclined downwardly in the direction of the draft, a rock-shaft journaled adjacent to said snapping-rolls and parallel thereto,

arms secured to said shaft, a bar connecting the free ends of said arms, teeth projecting laterally from said bar, huskingrolls, and a conveyer located adjacent to said snapping-rolls to carry the snapped ears to the husking-rolls, substantially as shown and described.

4-. In a corn-harvester, the snapping-rolls inclined downwardly in the direction of the draft, each of said snapping-rolls having spiral projections thereon and longitudinal corrugations, a rockshaft journaled adjacent to said snappingrolls, arms rigidly secured to said shaft, a bar connecting the free ends of said arms, teeth projecting laterally from said bar, husking-rolls, and a conveyer located adjacent to said snapping-rolls to carry the snapped ears to the husking-rolls, substantially as shown and described.

5. In a corn-harvester, a frame, a platform secured to said frame having an opening therein for the standing corn, conveyerchains at each side of said opening, the snapping-rolls located beneath the said opening and parallel therewith, and inclined downwarclly in the direction of the draft, a knocker-arm mounted on the said platform and arranged to reciprocate over said snapping-rolls, husking-rollers, a conveyer located adjacent to said snapping-rolls and knockerarm, wheels journaled on said frame, and gearing connected with one of said wheels to actuate the conveyor-chains, snapping-rolls, conveyer, husking-rolls, and knocker-arm, substantially as shown and described.

6. In a corn-harvester, a frame, a platform secured to said frame having an opening therein for the standing corn, snappingrolls located beneath said opening, parallel therewith and inclined downwardly in the direction of the draft, one of said rolls being yieldingly mounted, a rock-shaft journaled on the underside of said platform, arms secured to said rock-shaft, a bar secured to the free ends of said arms, laterally extending teeth secured to said bar, conveyerchains mounted on the platform on each side of the opening therein and having fingers projecting therefrom over the opening, a pointed divider secured to the upper end of the platform in the line with the opening and between the chains aforesaid, huskingrolls, a trough leading to the husking-rolls, a spiral rotatably mounted in said trough, a conveyer located adjacent to the snappingrolls and delivering into the trough, wheels for supporting the frame, and gearing connected with one of said wheels to actuate the snapping and husking-rolls, the conveyer, the conveyer-chain, the spiral, and the rockshaft aforesaid, substantially as shown and described.

7. In a corn-harvester, in combination with the stalk-conveyer chains, a pointed divider between the delivery ends of the chains, substantially as shown and described.

8. In a corn-harvester, in combination with the stalk-conveyer chains a pointed divider between the delivery ends of the chains to assist them in carrying off broken pieces of stalks, substantially as shown and described.

9. In a corn-harvester, in combination with an oscillating knocker-arni, rods secured to said knocker-arin, bars suitably secured and having holes to receive said rods,

and springs secured to the rods and bearing on each side of the bars, substantially as shown and described.

In witness whereof, we have hereunto Set our hands in presence of two subscribing witnesses.

FREDERIC D. WILSON. ALBERT D. WILSON.

itnesses P. S. TILSON, M. A. HnNNnss.

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