US790340A - Straw-stacker. - Google Patents

Description

3 SHEETS-SHEET 1.

- PATENTED MAY 23, 1905 J. B. BARTHOLOMEW.

STRAW STAOKER. grrmoumn nun MAY 26, 1000. RENEWED GOT. 27.1904.

Witnesses I :PATENTED MAY 23, 1905.

J. B. BARTHOLOMEW.

STRAW STAGKBR, ABPLIOATION FILED MAY 26, 1900. RENEWED OO'I. 27,1904.

- 3 SHEETS-SHEET 2.

Aviation: It.

UNITED STATES Patented May 25, 1905.

PATENT OEEIcE.

JOHN B. BARTHOLOMEW, OF PEORIA, ILLINOIS, ASSIGNOR, BY MESNE ASSIGNMENTS, TO THE SATTLEY STAOKER COMPANY, OF IN DIAN- APOLIS, INDIANA, A CORPORATION OF MAINE.

S'II'RAW-STACKE'R.

SPECIFICATION forming part of Letters Patent No. 790,340, dated May 23, 1905. Application filed May 26, 1900. Renewed October 2'7, 1904:. Serial No. 230,261.

To all whom, it may concern:

' ing had therein to the accompanying drawings.

. This invention relates to improvements in the machines for receiving the straw from threshing and separating machines and carrying it upward and backward to points remote therefrom and delivering it in such way that stacks can be built therewith.

Figure 1 is a side view of a suflicient portion of a threshing and separating machine and of a stacker mechanism embodying my im provements. Fig. 2 is a side elevation of the same, partly in section. Fig. 3 is a top plan view. Fig. 4 is a plan view of a portion of the mechanism for oscillating the stacker from side to side. Figs. 5 and 6 are detail views of the support or bracket of the outer section.

The stacking mechanism is herein shown as being attached .directly to the thresher; but it will be understood that a number of the features of construction which I have devised can be applied to stacking mechanisms of other sorts.

In the drawings, A indicates a part of the framework and casing of a thresher and separator suflicient to illustrate the manner of applying my improvements thereto. At the bottom and the rear end of the separator-frame there are sills or beams a, which extend backward to form a support for the stacker.

The stacker B is composed of two elements one at b and the other at b. idly secured together, the shorter bottom part I) being approximately horizontal and the part at 6 being sharply inclined therefrom. It is arranged on lines approaching the vertical. At the upper end it isconnected with the section C by a hinge at c, this section being arranged to swing vertically around the hinge. This vertically-swinging section has combined with it an improved mechanism for swinging it vertically which I have devised. Hereto These are rig-- fore in machines of this sort use has been made of elongated arms extending beyond the U ward to drums on a shaft mounted transversely of and extending from side to side of the framework 7); but from practical experience with constructionsof this earlier sort I have found thatserious disadvantages are incident to them with respect to the application of power in lifting and'controlling of the swinging section. The arms connected to that section furnish a leverage which varies within wide limits according as the section is in one or another of the positions in its path. One of the purposes of the present invention is to provide a lifting mechanism which shall be more nearly constant in its leverage irrespective of the positions of the swinging section.

D indicates a curved rack concentric with the axis at c, it being rigidly secured to the swinging section C. With this rack there engages a pinion E, mounted on the section B. Preferably there are two of such racks, one at each side ofthe part 0, Fig. 3, and two corresponding pinions. On the shaft E of the pinion E there is a sprocket-wheel F, with which, engages a chain G, which extends downward to and engages with a second sprocket-wheel H, mounted on the shaft I, situated at a line low enough to be readily accessible from the ground and to which a crank j can be directly applied. two sets of said gearing F G H, one at each side of the stacker, Fig. 3. When it is desired to move the swinging section O in either direction, it can be readily accomplished by means of these parts. If this section is to be carried from its rearmost position upward and I prefer to employ over the vertical planes and downward to the top ofthe thresher, the crank at f is turned or cord is used, as heretofore, it is necessary to rotate the power-shaft first in one direction and then in the other, whereas with the present mechanism, as above described, the swinging section can be carried from one end of its path to the other by a continuous movement of the-crank.

The. curved rack D may be a continuous circle in case the section 0 moves through all of its paths around a single axis, as when a single elevator carrier-belt is employed, extending from the bottom of the part B to the outer end of the part 0; but when the part C is arranged to describe part of its path around one axis and the other part of its path around another axis, such as c, the rack can be shaped, as shown at (Z d in Fig. 1, so as to have a part concentric with each of the axes; but even in such case the pinion E will be adapted to be followed by the two curves of the rack andeifect the entire movement of the section.

In another respect the present machine differs from those heretofore used. It has been common-to use endless belts to elevate the straw from the receptacle or hopper at N, such belts extending from the inner side of the hopper first horizontally to the bottom of the rising part I), thence upward through the latter, and either outward over the entire length of the section C and then back over the latter, down through the part Z), and under the hopper, or after reaching the top of the part I) returning directly down along the same. These long carriers, necessary for this work, are very objectionable, as they are apt to get out of order and to be injured and displaced. One of the purposes of the present invention is to employ a superior mechanism for elevating the straw through this part of the machinethat is, the part at b. I dispense with endless carriers and employ in place thereof a reciprocating elevator, as shown at O. This is formed of a series of bars P P, which extend from the bottom to the top of the part I). Each of these is connected to a crank 19 on a crank-shaft p. The throw of the cranks is so selected as that a wide opening shall be provided at the bottom of the elevator for the admission of the straw. Vhile the elevator-bars are thus adapted to be oscillated at their lower ends, they are provided at their upper ends with suitable guiding means. In the construction illustrated such means consist of rods or stirrups 0', fixed on the bars P and adapted to reciprocate in apertures formed in a transverse guide-bar R, the latter being fixed in the sides or frame of the part 5. Under the combined influence of the said operating and guiding means the lower ends of the elevator-bars will be caused to travel with considerable range of movement in elliptical paths, as indicatedin dotted lines in Fig. 2, where the direction of such movement is also indicated by arrows. In order to facilitate the gathering in of the straw from the hopper N, I prefer to provide the lower ends of the elevator-bars with hooks or teeth 1. The in ner faces of the lower ends of said bars are provided with notches, steps, or shoulders adapted to engage positively with the straw on the upward movement of the bars and elevated for a distance equal to the throw of the cranks p, and the straw thus elevated is retained from downward movement by corresponding teeth orshoulders 2, attached to the bottom and rear board of the elevator-lrmne. Various forms of elevating and retaining devices may be combined with the bars P. Thus I have shown the upper part of the elevatorframe as provided with upwardly-pointing wire or metallic teeth 1)", adapted to permit the upward movement of the straw, but to positively prevent its return. Cooperating with said teeth areoseillating fingers 3, pivotally mounted at 4 on the elevator-bars in staples or eyes suitable for such purpose. Said linge-rs are preferably U-shaped, as seen in Fl 3, each with its two finger portions lying at the sides of the elevator-bar and extending across the straw-space toward the bottom or rear wall of the elevator. As the elevatorbar moves downward the lingers 3 are free to turn in their bearings 4 into a more orless upwardly-inclined position as may be rendered necessary by the resistance of the straw and in such position are free to move downward or along through the straw until the elevator-bars have reached their lowermost position. Thereupon as the bars are moved upward the fingers 3 will turndown ward into a position substantially at right angles to the elevator-bars, in which position they are arrested by stop-pins 5. T hereafteras the bars move upward said lingers act eiiiciently to positively hold and elevate the straw. The mass of straw thus elevated passes from the part 6 through the throat 6, where it is delivered upon the outwardly-traveling carrier Q, mounted in the upper swinging section 0 between the sideboards or fenders 3i and the hopper-boards 35 of said section.

The crank-shaft 1' is provided with a chain wheel or pulley 7, which is engaged and rotated by a chain 8, driven in turn by a wheel 9 on a shaft 10, mounted transversely on the bars 11, which form the top supports of the elevator and stacker frame.

With the elevating means above described I prefer to combine an oscillatory or otherwise movable hopper in the nature of a chute, by the action of which the straw is fed to the lower end of the elevator. To this end 1 mount the hopper N on links 12 and 13, the former of which are pivoted at 14 on the part b and the latter of which are carried by a rockshaft 15. The latter is also provided with an arm 16, from which a pitman 17 extends to a wrist 18 on the shaft By this means the hopper N is oscillated bodily toward and from the elevating devices, and the feeding of the IIS - straw toward the latter is promoted'by the 4 hopper may be connected with the stationary part of the elevator by a stripor sheet of flexible material, such as leather or canvas, to prevent the downward escape of straw. The

- straw is delivered from the threshing-machine into the hopper N in any usual or preferred manner, as through a hood 21.

Recurring now to the vertical oscillation of the outer section C and starting from the po sition shown in Figs. land 2, said section will first turn (in the particular construction illustrated) on the axis 0, the hinge being furnished by the through driving-shaft 38 ofthe inner pulleys of the belt Q. This shaft and the section G by means of, brackets 39,.attached to its side boards or fenders, 34, are carried by links'36, in the lower ends of which said shaft has its bearings and the upper ends of which are pivoted at c to the stacker-section B by bolts or studs 37. The action of these links allows the inner end of the carrier Q to be carried below the throat 6 and also in folding to turn over thepart 7). 40 indicates lugs on the said brackets, Figs. 5 and 6, which as the section O nears a vertical position will encounter the rear sides of the links 36 and prevent further turning of the section relative to the links. Further turning or folding of the section 0 will be in company with the links on the pivots 37 and axial line 0. At the time when the lugs thus engage the links the centers of the rack-segments d have been shifted to coincide with the line 0 and the lower ends of said segments will have reached the pinions E, so that the further inward folding of the section will be effected by the action of said pinions on the segments 03.

The stacker-frame elements 6 6, together with the bars or frame 11, form a frame oscillatory in horizontal planes upon a vertical axis. The lower pivot of this axis is shown at 22, fitting in a suitable bracket 23 on the beams a. The upper pivot of said axis is indicated at 24:, on which the frame 11 turns relative to the frame 25, which latter is attached to the thresher and carries any suitable,

oscillating mechanism. A suitable mechanism for this purpose-that is to say, for oscillating the stacker in horizontal planesis fully described in my said application, Serial No. 7 36,148, and herein illustrated sufiicientlyfor the purpose of the present invention. Of such mechanism 26 is the horizontal gear or segment rigidly connected with the frame 11 and concentric with the pivot 24. 32 33 are the pinion and worm-wheel for driving the gear 26. 27 28 are the belt-wheel and shaft from which the wheel 33 is driven.

The shaft 20 is actuated by suitable gearing from a horizontal sprocket 31, driven by a chain 30 from a sprocket 29, concentric with the pivot 24:. The sprocket 29 is actuated by any suitable bevel or other gearing from the shaft 28. The belt Q, is also, by preference, driven by mechanism such as I have set forth in my said application, Serial No. 736,148 that is to say, by a chain 41, driven from the shaft 10 anolactuating a train of gearing 42, the upper member of which is a sprocket and pinion on one of the studs 37, the intermediate member an idler-pinion on one of the links 36, and the lower member a pinion on the shaft 38.

I do not herein claim, broadly, the outer same being the subject, in part, of my application, Serial No. 18,098, filed May 26, 1900.

While I have illustrated and above described an entire mechanism in detailembodying my improvements, it will be seen to comprise features of construction relating to one part of vthe mechanism, which while shown as coacting with other features of construction can nevertheless ,be employed in conjunction with modified apparatus. For instance, the means for uniting the stacker pivotally to the thresher-frame, together with those by which it is moved horizontally and vertically, are presented in combination with a specific form of straw-elevator associated with the inner section of the stacker-frame; but it will be understood that there can be modification in this respect, and I do not in this application claim the specific form of straw elevating or carrying devices, the same being the subjectmatter of a divisional application filed May 1, 1905, the claims herein being confined to the aforesaid means for pivotally mounting the stacker-sections and the means for effecting their movements.

What I claim is- 1. In a straw-stacker, the combination with the inner part of the elevator having the lower part and the upwardly-rising part rigidly secured together, and the swinging section pivoted to the inner section on two axes eccen tric to each other, of the adjusting and lifting gear wheel mechanism for the swinging section, and the means for rotating the gearwheels, substantially as described.

2. In a straw-stacker, the combination, with the inner elevator section, having the upwardly -rising part with means therein for lifting the straw, of the swinging section C pivoted to the inner section, the gearing comprising the eccentric racks D for adjusting and lifting the swinging section arranged adjacent to the pivot thereof, and power-transmitting devices extending downward from the gearing, substantially as described. I

3. Inastraw-stacker, the combination, with the inner elevator section, having the up- -section hinged on two transverse axes, the

IIO

wardly-rising part with means therein for lifting the straw, of the swinging section C pivoted to the inner section on twoaxes eccentric to each other, and the gearing for adjusting and lifting the swinging section arranged adjacent to the pivot thereof, comprising curved racks, portions of which are concentric with one of said axes and portions of which are concentric of the other of said axes, substantially as set forth.

4. In a straw-stacker, the combination, with a suitable support, of a swinging elevator or elevator-section hinged on said support, on two axial lines one above the other, and toothed gearing for causing said elevator to swing upward first on the lower axis and then on the upper axis.

5. In a straw-stacker, the combination of an inner upwardly extending elevator section having an elevator or carrier, an outer stackersection hinged on the first section on two axial lines one above the other and having a carrier, and toothed gearing for causing the outer section to swing upward on the lower axis with the inner end of the outer carrier below the upper end of the inner carrier, and

to swing backward on the upper axis to raise the outer carrier clear of the inner carrier.

6. In a straw-stacker. the combination of an inner upwardly extending elevator section having an elevator or carrier, an outer stackersection hinged on the first section on two axial lines one above the other and having a carrier, links 36 connecting said sections, means whereby the outer section after swinging upward engages said links to turn with the links on their upper hinge-points and toothed gearing adapted to cause such swinging ol the outer section. I

7. In a straw-stacker, the combination of an inner upwardly-extending elevator section having an elevator or carrier, an outer elevator-section having a carrier, and brackets 39 having stops 4:0, and links 36, connecting said sections.

In testimony whereof I afiix my signature in presence of two witnesses.

JOHN B. BAR'ITHOLOMElV.

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