US635751A - Hay-rake. - Google Patents

Description

No. 635,75l. woman. 3!, I899.

s. K. DENNIS.

HAY BAKE.

(Application filed Apr, 5, 18 99.) (No Model.) 5 Sheets-Sheet I.

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No, 635,;75l. Patented Oct. 3!, I899. S. K. DENNIS.

l'llAY BAKE. (NO MOI WL) (Application Apr- 1899) 5 Sheet8-sh68t 4 I i \v W K v A "cams PETERS co. moro'uma. wnsumarou, n. c.

No. 6 35,75|. Patented Oct. 3|, I899.

S. K. DENNIS.

HAY BAKE.

(Application filed Apr. 5, 189a. I ("0 Modem 5 Sheots8heet 5,

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SAMUEL K. DENNIS, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE PLANO MANUFACTURING COMPANY, OF SAME PLACE.

HAY-RAKE.

SPECIFICATION forming part of Letters Patent No. 635,751, dated October 31, 1899. Application filed April 5, 1899. Serial No. 711,763. (No model.) I

To all whom, it may concern:

Be it known that I, SAMUEL K. DENNIS, a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Hay-Rakes, of which the following is a specification.

My invention relates to certain new and useful improvements in hay-rakes whereby the stripper-arms are depressed for a time as the rake-teeth are raised, automatically or otherwise, in the act of discharging the collected load and subsequently raised, so as to permit them to pass freely over the hay as the discharge is completed. As these hay-rakes have been constructed prior to my invention the stripper-arms have been secured to the framework of the machine, so that while the framework was in its ordinary position in uset'. e. upon a 1evelthe stripper-arms always remained in the same position, which was substantially horizontal. The construction in which these stripper-arms remained horizontal did not assist materially in cleaning the teeth, except as the teeth were raised, and in case a construction was employed in which the dumping operation caused the frame to be depressed this depression of the frame brought the stripper-arms closer to the ground and interfered with the dumping operation, as they did not tend to ride freely over the pile of hay being discharged.

In my improvements I mount the stripperarms upon a rock-shaft which is so connected up with the framework of the machine and the bar carrying the rake-teeth that the act of dumping causes the stripper-arms to be first depressed to positively assist in cleaning the teeth, while the further operation toward the end of the dumping act causes the stripper-arms to be raised again to their normal position, or even beyond it, in order to facilitate the discharge of the hay.

To fully disclose my invention, I have shown it as embodied in the form which I at present consider best adapted to carry it out, and in. the drawings, in which the same letters of reference are used to designate identical parts in all the figures Figure l is a plan View of a rake constructed in accordance with my invention. Fig. 2 is a side elevation in section onthe line 2 2 of Fig. 1, showing the parts in their normal or unoperated position. Fig. 3 is a similar View, but on a larger scale and with the seat omitted, showing the position of the parts when the operation of dumping is about half completed. Fig. 4 is a similar view showing the position of the parts when the dumping operation is entirely completed and the parts are ready to be returned to their normal position, and Figs. 5 to 11 are detail views to be more fully described hereinafter.

A refers generally to the framework of the machine, which may be conveniently constructed of an angle-iron bent into the shape shown and provided with the underlying cross-piece B, which may also be an angleiron. The thills C are connected to the frame A and the cross-piece B, and the singletree D may be connected to the front end of the frame A between the thills in the manner shown. The seat E is carried by the bars F and G, which are connected to and supported by the cross-pieces B and the frame A, respectively, the weight of the rider thusbeing borne by the frame and assisting materially in the operation of dumping, as is common in rakes of this construction. The wheels H are of the ordinaryconstruction and are journaled on the short stub-shafts J which are rigidly secured to the tooth-supporting bar K, which is conveniently constructed of a piece of angle-iron extending across'the rake and to which the teeth L may be secured in any desired manner. The connections between the frame A and the tooth-supporting bar K are made by means of a pair of brackets M, which are of the-general shape shown in Figs.2 to 4, which arerigidly secured to the front side of the tooth-supporting bar K at points corresponding to the location of the ends of the frame A. These brackets M have projecting outwardly therefrom the pintles N, passing through corresponding apertures in the ends of the frame A and by which the frame A is pi'votally secured to the tooth-carrying bar K. The bar K also has centrally mounted upon it and pivotally secured thereto the adj usting-segment O, on which is pivotally mounted the bar or link P, the other end of which is secured to the lever Q, pivoted at its front end to the central forward portion of the frame A and having its rear end provided with a handle, which is located in convenient proximity to the seat E. The normal position of these parts is shown in Figs. 1 and 2, where it will be seen that if the handle of the lever Q be lifted the movement thereof about its pivotal point will necessarily draw the link I upward and forward, so as to compel it to rock the plate 0, and consequently'the bar K and the plates M, about their pivotal centers, which are the stub-shafts J of the wheels II. By comparing the position of the parts in Fig. 2 with those of Figs. 3 and 4 it will be seen that the result of this movement is to lower the framework of the machine from a position above the level of the axles of the wheels to a position considerably below that level and that the swinging of the bar K about its pivotal center will cause the teeth L to be raised from the position of Fig. 2 through that of Fig. 3 to that of Fig. 4. It will also be evident, as before stated, that the weight of the rider in causing the frame to descend materially assists this movement. As this form of rake has been hitherto constructed the stripper-teeth were projected rearwardly from the cross-piece B or some similarly-located cross-piece, and it will be observed that the downward movement of the frame A and the slanting position given to it in its lowermost position would cause the stripper-arms to be thrown very close to the ground at the conclusion of the movement, where their presence would seriously interfere with the free passage of the rake from over the hay to be dumped.

In my improved construction I mount the stripper-arms S rigidly in a rock-shaft T, which may be conveniently constructed of a piece of gas-pipe and which is pivotally supported in the bearings U, projecting rearwardly. from the longer side of the an gle-bar K and shown in detail in Figs. 5, 6, and 7. These bearings U may be conveniently constructed of the annular portion V, connected by the web IV with the flanged portion X, by which they are bolted to the bar K. The rockshaft T has rigidly secured thereto at points adjacent to the ends of the frame A the arms Y, upon which are pivoted the links Z, which are in turn connected to the cross-pieceB by the short arms A. The arms Y may be conveniently constructed of the annular portion 13, surrounding the rock-shaft T, and through both of which passes the bolt 0, which serves to secure the arm Y rigidly upon the rockshaft. The arm portion proper is provided with the pintle D, upon which the link Z is secured by a cotter-pin or any other desired construction. The arms A (shown in detail in Fig. 10) have the general shape shown in Figs. 3 and 4t and consist of the arm portion proper, having the outwardly-projecting pintle E, upon which is mounted the link Z,

which may be secured in place by a cotterpin, and the other end is formed with the flange F, by which it may be bolted to the vertical portion of the angle-iron B. To secure the spacing-bar G in place, I employ the following construction: This spacing-bar G, which is a flatbar extending above the stripper-arms and parallel to the rock-shaft T, is secured in place by the eyebolt H, (shown in Fig. 9,) which has the stripper-arm passing through its eye portion and which first passes through the end of the horizontal portion of the angle-piece J (shown in Fig. 11) and then through the spacing-bar G, where it is secured in place by a nut, as K. This anglepiece J has an aperture (not shown) in its short vertical portion which rests against the rock-shaft T, as seen in Figs. 4: and 5, and through which aperture the stripper arm passes. It will be seen that these parts form a simple structure which can be readily assembled to secure the spacing-bar G at the desired distance from and maintaining it parallel to the rockshaft T.

The mode of operation of the device will be apparent by reference to Figs. 2, 3, and 4. In Fig. 2 it will be seen that the stripper-arms S rest in their horizontal position when the raketeeth are down and the parts in a position of rest. As the rake-teeth are drawn upwardly by the operation of the handle the rock-shaft T is turned by reason of the movement of the rock-shaft relative to the arms A on the crosspiece 13, which movement separates these parts farther than their normal position, and the unyielding link Z compels the rotation of the rock-shaft to meet this divergence. The direction of the rotation of the rock-shaft is such as to throw the stripper-arms S downward, so as'to assist in tripping off the hay from the teeth L as they are raised. As these teeth are raised toward their highest position the relation of the rock-shaft T and the arms A in regard to the distance separating them becomes more nearly normal, and the action of the link Z is such as to rotate the shaft T in the opposite direction and raise the stripper-arms back to their normal position, where they are high enough not to interfere in the least with the passage of the rake over the hay which is being dumped. As the parts descend the reverse movement takes place until they reach the position of Fig. 2, when the rake is ready for another operation.

While I have shown my invention as embodied in the form which I at present consider best adapted to carry it out, it will be understood that it is capable of modifications and that I do not desire to be limited otherwise than may be necessitated by the state of the art.

What I claim, and desire to secure by Letters Patent of the United States, is-

1. In a hay-rake, the combination of the frame, with the rake-tooth-carrying bar or rock-shaft mounted thereon, the stripperarms pivotally mounted in relation to the IIO tooth-carrying bar, and operating mechanism for rocking said bar and stripper-arms simultaneously, said mechanism being so arranged and timed as to first depress and then raise the stripper-arms while the tooth-carrying bar is being raised, for the purpose described.

2. In .a hay-rake, the combination of the frame, with the rake-tooth-carrying bar or rock-shaft mounted thereon,a rock-shaft hav= ing the stripper-arms secured thereto journaled parallel to the tooth-carrying bar, and operating mechanism for rocking said bar and stripper-arm rock-shaft simultaneously,- said mechanism being so arranged andtimed as to first depress and then raise the, stripperarms while the tooth-carrying bar is being raised, for the purpose described.

3. In a hay-rake, the combination of the frame,- with the rake-tooth-carry'ing bar or rock-shaft mounted thereon, the rock-shaft journaled in the rake-tooth-carrying bar and having the stripper-arms secured therein, and operating mechanism for rocking said bar and stripper-arm rock-shaft simultaneously, said mechanism being so arranged and timed as to first depress and then raise the stripperarms while the tooth-carrying bar is being raised, for the purpose described.

4:. In a hay-rake, the combination of the frame, with the rake-tooth-carrying bar or rock-shaft mounted thereon, the rock-shaft journaled in the rake-tooth-carrying bar and having the stripper-arms secured therein, and mechanism connecting the stripper-arm rockshaft and the tooth-carrying bar, said mechanism being so arranged and timed as to first depress and then raise the stripper-arms by the motion of their rock-shaft while the toothcarrying bar is being raised, for the purpose described.

5. In a hay-rake, the combination of two directly pivotally connected members, such as the frame and the rake-tooth-carrying bar,

with a rock-shaft carrying the stripper-arms journaled in one of said members, and alink connecting said rock-shaftto the other mem her so that the rocking movement of the toothcarrying member upward to discharge the load first rocks the shaft to depress the strip per-arms and subsequently to raise them during the upward movement of the tooth-carrying bar.

6. In a hay-rake, the combination of the frame A, with the bar K supported by the wheels and pivotally connected thereto, the rock-shaft T carrying the stripper-arms journaled in bearings on the bar K, and the link Z connecting the frame and the rock-shaft to cause the stripper-arms to be depressed during the first part of the upward movement of the rake-teeth and to be raised during the last part, substantially as described.

7. In a hay-rake, the combination of the bar K having the axles for the wheels I-I eccentrically secured thereto, with the frame A pivotally secured to the bar K by the interposed brackets M rigidly secured to the bar K, the rock-shaft T carrying the stripperarms S journaled in bearings on the bar K,

and the link Z pivotally secured to the rockshaft T an d to the frame A, substantially as and for the purpose described.

8. In a hay-rake, the combination of the rock-shaft T and the angle-pieces J adjacent thereto, With the stripper arms S passing through the rock-shaft and the angle-pieces, and the spacing-bar G secured thereto by the eyebolts H through which the stripper-arms S pass, the bolt portions of which pass through the angle-pieces J and the spacing-bar G, substantially as shown and described.

SAMUEL K. DENNIS.

Witnesses:

E. J. TAYLOR, J. F. ADAMS.

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