US1129646A - Hay-stacker. - Google Patents

Description

J. H. COPE.

HAY STAGKER.

APPLIOATION FILED MAY 11, 1914.

- Patented Feb. 23, 1915.

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Momma o J. H. COPE.

HAY STAGKER.

APPLICATION FILED MAY 11, 1914.

Patented Feb. 23, 1915.

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vwamfoz THE NORRIS PETERS CO.. PHOTC-LITHQ. WASHINGTON, D. c.

J. H. COPE.

HAY STAOKER.

APPLIQATION FILED MAY 11, 1914.

1,1 29,646. Patented Feb. 23, 1915.

3 SHEETSSHEBT 3.

THE NORRIS PETERS ca. PHOTG-LITHO.. WASHINGTON, D. C.

JOSEPH H. COPE, OF WINDSOR, COLORADO.

I-IAY-S'IACKER.

Specification of Letters Patent.

Patented Feb. 23, 1915.

Application filed May 11, 1914. Serial No. 837,854.

To all whom it may concern Be it known that I, JOSEPH H. Corn, a citizen of the United States, residing at WVindsor, county of Weld, and State of Colorado, have invented certain new and useful Improvements in Hay-Stackers; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which is appertains to make and use the same, reference being had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this specification.

My invention relates to improvements in hay stackers of the class set forth in my previous Patent No. 710,257, dated May 27, 1902, in which an extensible head is em ployed, the same being arranged to be projected outwardly from the frame as it is lifted, thus making it practicable to leave the head close to the frame when on the ground or in the lowest position, and at the same time, raise the hay to any desired height as the head is lifted. In a construc tion of this character, the head of the rake is equipped with arms or bars which extend rearwardly and are slidably connected with a lifting frame composed of other arms or bars which are pivotally connected with the frame or structure which is, relatively stationary during the movement of the head in the regular performance of its function. Arms or .links are pivotally connected with the slidable bars of the head at one extremity and s0 mounted and connected at their opposite extremities that as the head of the rake is raised, it is simultaneously extended or moved outwardlv by a sliding action on the bars of the lifting frame with which the bars of the head are slidably connected.

In my previous patent one extremity of each of the extension links is pivotally connected with the frame at a point located above the plane of the rake head when in its lowest position, or above the pivotal point of the lifting frame. In my present construction, the corresponding extremities of these links are pivotally connected with the frame at points at least as low as the rake head when in its lowest position, or as low as the pivotal point of the lifting frame, and rearwardly of the points where the lifting bars are pivotally connected with the stationary frame. By virtue of this last named construction, the rake head is extended during the upward movement, and this extension or lifting action continues until the'head has reached a position as far rearwardly as the rear pivotal points of the then lowermost extremities of the links, with the result that the stacker head occupies a position farther rearwardly than the points where the lifting bars are pivotally connected with the frame. Hence, the rake head, together with the entire lifting structure, is rearwardly inclined when the head has reached its limit of extension to such an extent as to discharge the load carried by the head. In other words, the rake head continues to move upwardly and outwardly until its load is discharged, which is an important advantage in a structure of this character, and the farther rearwardly that the extremities of the links are located which are connected with the stationary part of the frame, the greater may be the rearward inclination of the rake head and lifting structure when the head is in the load discharging position. Hence, the advantage of pivoting the extremities of the links which are connected with the stationary frame, in

a position rearward with reference to the pivotal points of the lifting bars, or those with which the bars of the rake head are slidably connected during the operation of the machine.

Having briefly outlined mv improved construction, I will proceed to describe the same in detail, reference being made to the accompanying drawing, in which is illustrated an embodiment thereof.

In this drawing,-Figure 1 is a side ele vation of a hay stacker equipped with my improvements, the parts being shown in two positions, the lowermost position being'in full lines and the raised position in dotted lines. Fig. 2 is a similar view showing the raised position of the stacker in full lilies. Fig. 3 is a top plan view of the stacker when the head is in the lowermost position. Fig. 4 is a side elevation illustrating another form of construction.

The same reference characters indicate the same parts in all the views.

Let the numeral 5 designate the relatively stationary frame work which may be of any suitable construction. Pivotally connected with this frame work at points 6 is a lifting frame 7 composed of two bars 8 which are suitably spaced and upon which are slidably mounted rea-rwardly extending bars 9 whose forward extremities are rigidly secured to the rake head 10. The slidahle bars 9 of the rake head are connected in slidable relation with the bars 8 by means of metal straps 11 and 12. The straps 12 are connected with the bars 8 and engage the bars 9 in slidable relation; while the straps 11 are connected with the bars 9 and engage the bars 8 in slidable relation. This connection is such that the bars 9, during the operation of the machine, slide freely on the bars 8 in either direction.

In the form of construction shown in Figs. 1, 2 and 3, the links or extension arms 1 1 are pivotally connected with the bars 9 as shown at 15, and with the stationary frame work as shown at 16. The points 16 are located at least as low as the plane of the rake head when in its lowermost posi tion, or as low as the pivotal points 6 of the lifting frame, and are rearwardly located with reference to the said points 6 where the lifting frame is pivoted to the main frame. The points where the pivoted extremities of the links or extension arms 14 are connected may be varied. That is to say, the rear parts of the side members of the stationary frame 5 may be provided with a number of openings 17, while the slidable arms 9 of the rake head are provided with a corresponding number of openings 18. When the rear extremities of the arms are pivoted at the rearmost opening 17 of the stationary frame, the degree of extension or outward movement of the rake head during the lifting operation will be greatest. Now, if it is desired to adjust the extension arms to reduce this outward extension or movement of the rake head, the rear extremities of the links or extension arms may be connected at the openings 17 next in front, while their forward extremities are connected with openings 18 next forwardly in the bars 9. In this manner, it is evident that the degree of extension of the rake head during its upward movement may be regulated as desired, as long as the pivotal points 16 are in therear of the pivots 6 of the bars 8 of the lifting frame. In this way, the adjustment may be obtained by employing the links or extension arms 14. If, however, it is desired to obtain a similar adjustment without changing the pivotal points 15 of the extension arms, a number of sets of these arms may be employed, the arms of each set being of different length and so arranged that while the points 16 are located at different distances from the points 6, the forward extremities of the'links will be in the same position.

In the construction shown'in Fig. 4, the forward extremities of the links or extension arms 14 are adjustably connected with the bars 9 by metal brackets 4:2, which are secured at their extremities to the 1 frame bars 9 as shown at 13. Between their extremities, these brackets form elongated openings or slots 14, in which pins 17 carried by the links 14:, slide freely. These brackets are provided with vertically disposed openings 4C5 which register with similar openings 46 formed in the bars 9 and adapted to receive removable stop bolts 48,

which may be adjusted to allow the pins 417 v to move a predetermined distance in the slots at before they engage the stop bolts 4-8, and consequently, before the links 14 be gin to perform the stacker head extension function.

The other features of the structure illustrated in the drawing are substantially the same as heretofore employed in the construction of my commercial machine, and nothing is claimed thereon in this application. An A-shaped frame 19 has its separated extremities pivotally connected with the stationary frame at points 20, while its connected extremities are pivotally connected as shown at 21 with rods 22 whose opposite extremities are pivotally connected as shown at 23 with the bars 8 of the lifting frame.

Extending upwardly from the rear extremity of the stationary frame are two braces 24, whose lower extremities are rigidly secured to the stationary frame, while their upper extremities which approach each other are connected by a bracket with which are also connected the upper extremities of a stationary A-shaped frame 26, the lower extremities of the bars of this frame being connected with the stationary frame as shown at 27. Upon this bracket are mounted two pulleys 28 and 29, which cooperate with a pulley 30 mounted on the upper extremity of the A-frame 19. A cable 31 employed in lifting the loaded rake head passes over a pulley 32 mounted in a holder 33 secured to the rear extremity of the frame 5. To the free extremity of thiscable may .be hitched a horse or other power connected for operating purposes. This cable 31 passes from the pulley 32 upwardly over the pulley 28 and thence forwardly around the pulley 30 and thence rearwardly around the pulley 29 and thence forwardly, where it is secured, as shown at 3 1, to the upper'extremity of the A-frame 19. I

Assuming that the structure is in the lowermost position or that shown by the full lines in Fig. 1, if it is desired to raise the rake head and connected parts to the position shown in dotted lines in the same figure and in full lines in Fig. 2, the power is applied to the cable for this purpose and during'the lifting operation the points 15 where 7 the extension arms are connected with the arms 9 of the stacker head, will move in dotted arcs A (see Figs. 1 and 2), while the corresponding points 35 on the bars 8 of the liftingframe will move in dotted arcs B.

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It will be seen that these arcs diverge as soon as the lifting operationbegins and when the stacker head is in its highest position, these arcs will be spaced as indicated at C and D, the distance between these two points being the degree of extension of the rake head due to the operation and function of the links or extension arms 14:. In other words, the points of the arms 9, if the said arms were rigidly connected with the arms 8 of the lifting frame, would be in the position D when the rake head is in its highest position; while by virtue of my present construction, these same points of the bars 9 are in the more elevated position C.

During the upward movement of the stacker head, the upwardly traveling structure, composed of the bars 8 and 9, engages a cross piece 36 of a buffer frame, including upwardly extending bars 37 pivotally connected with the stationary frame work, as shown at 38, and yieldingly connected with the stationary A-shaped frame 26, by spiral springs 39, the said springs being connected with the frame member 26, as shown at 40, and with the upright bars 38, as shown at 41. As soon as the upwardly moving structure engages this buffer member, the latter is carried rearwardly and the springs 39 distended, whereby the stacker head is at its highest position, as indicated by the dotted lines in Fig. l, and by full lines in Fig. 2, and the buffer frame, in a corresponding position. Hence, as soon as the load is discharged from the rake head, the recoil of the springs 39 will move the stacker head forwardly until it occupies a position forward of the points 16, where the extension arms or links 14 are-connected with the stationary frame and hence forward of the structure, which serves to support the rake head and its slidable frame composed of the arms 9. Hence. the head will automatically move downwardly to its normal position, or into position to receive the next load.

During the lifting operation, the A-frame 19 will move from the position shown in full lines in Fig. 1, to the position shown by dotted lines in the same figure, and by full lines in Fig. 2. During this movement, the pulley 30 approaches the pulleys 28 and 29, due to the operation of the cable, whereby the stacker head and the load carried there by are elevated.

Having thus described my invention, what I claim is,

1. In a hay stacker, the combination with a relatively stationary frame work, of a lifting frame pivoted thereon, a stacker head slidably connected with the said lifting frame, and a link connection between the stationary frame, the point of connection with the frame and a part rigid with the stacker head being in the rear of the lifting frame pivot, and at least as low as the plane of the stacker head when in its lowermost position.

2. In a stacker, the combination with a relatively stationary frame, of a lifting tionary frame and connected with the lift- 7 ing frame in suitable operative relation, and

a stacker head slidably connected with the lifting frame, and links connected with a rigid part of the stacker head at one extremity and with the stationary frame at the opposite extremity at points in the rear of the lifting frame pivot, and at least as low as the plane of the stacker head when in its lowermost position.

l. The combination with a suitable stationary frame, of a lifting frame pivotally connected with the stationary frame and having two parallel bars, a stackerhead provided with two bars rigidly connected with the head proper and slidably connected with the parallel bars of the lifting frame, and links connected with the rigid bars of the head at one extremity and with the stationary frame at the opposite extremity at points in the rear of the pivoted points of the lifting frame, and at least as low as the plane of the stacker head when in its lowermost position.

5. In a stacker, the combination with a relatively stationary frame, of a lifting frame pivoted on the stationary frame, a stacker head having bars rigidly connected therewith, guides forming a slidable connection between the bars of the stacker head and the lifting frame, and links connected with the bars of the stacker head at one extremity and with the stationary frame at the opposite extremity at points in the rear of the pivot of the lifting frame, and at least as low as the plane of the stacker head when in its lowermost position.

6. In a stacker, the combination with a relatively stationary frame, of a lifting frame pivoted thereon, a head having bars rigidly connected therewith and slidably connected with the pivoted frame, and links connected with the rigid head bars at one extremity and with the stationary frame at the opposite extremity, at points in the rear of the pivot of the lifting frame, and at least as low as the plane of the stacker head when in its lowermost position, the said links being adjustable to vary the degree of the stacker heads extension during the upward movement.

7 In a stacker, the combination with a relatively stationary frame, of a lifting frame pivoted thereon, a head having bars rigidly connected therewith and slidably connected with the pivoted frame, and links connected with the rigid head bars at one extremity and with the stationary frame at the opposite extremity, at points in the rear of the pivot of the lifting frame, and at least as low as the plane of the stacker head when in its lowermost position, the stationary frame and the head bars having perforations spaced to permit forward and rear- 15 ward adjustment of the links, substantially as described.

In testimony whereof I aflix my signature 1n presence of two Witnesses.

JOSEPH H. COPE.

Witnesses MAZE KIRBY, A. J. OBRIEN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

Corrections in Letters Patent No. 1,129,646.

It is hereby certified that in Letters Patent No. 1,129,6i6, granted February 23, 1915, upon the application of Joseph H. Cope, of Windsor, Colorado, for an improvement in Hay-Stackers, errors appear in the printed specification requiring correction as follows: Page 3, line 62, after the Word frame insert the Words and a part rigid with the stacker head; and same page, lines 636at, strike out the Words and a part rigid With the stacker head; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Offioe.

Signed and sealed this 16th day of March, A. D 1915.

' J. T. NEWTON,

Acting Commissioner of Patents.

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