US1547773A - Haystacker - Google Patents

Description

July 28, 1925.

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C PEARSON HAYSTAQKER Flled June 19, 2

July 28,1925. 1,547,773

c. PEARSON' HAYSTACKER Filed June 19, 1922 5 Sheets-sheet 2 July 28, 1925. 1,547,773

C. PEARSON" HAYSTACKER Filed June 19, 1922 3 Sheets-Sheet 5 Patented July 28, 1925.

UNITED STATES 1,547,773 PATENT OFFICE.

CHARLES PEAR-SON, OF CHICAGO, ILLINOIS, ASSIGNOR, T0 INTERNATIONAL HAB- I VES'IER COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF NEW JERSEY.

HAYSTACKER.

Application filed June 19, 1922. Serial No. 569,357.

To all whom it may concern.

Be it known that 1, CHARLES PEARSON, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Haystackers, of which the following is a full, clear, and exact specification. Y

My invention relates to a hay stacker and more particularly to an extensible type of swinging stacker.

One object of the present invention is to provide a hay stacker which will be strong and durable in construction and efficient in operation and which will elevate and stack proved extensible mechanism for extending theheight to which the fork of the stacker may be elevated.

A still further object is to provide a means for adjustably controlling the height of the extensible lifting members.

Further objects and advantages will appear in the following description, it being understood that various changes in form, proportion and minor details of construction maybe resorted to within the scope of the appended claims.

In the accompanying drawings forming part of this specification- Fig. 1' is a side elevational view of my improved extensible hay stacker;

Fig. 2 is a top plan view of the stacker shown in Fig. 1; and

Fig. 3 is a side elevational view showing the stacker in its elevated or extended position.

My improved extensible hay stacker as shown in theaccompanying drawings comprises the main frame base member 10 secured together by the transverse brace member 11 connecting the forward ends of the base members 10. The rearward ends of the base member 10 are connected by a cross board 12. Extending transversely andsecured centrally to the base members 10, is a crossbar 13. Swiveled in the cross bar 13 is a vertically disposed standard 14. The standard 14 is held rotatably supported at its upper end in a bracket 15. The bracket 15 is provided with four downwardly extend ng sock t '16- wh ch-a adapted to at 23 are two sheaves 24 for the purpose hereinafter set forth. Pivotally mounted adjacent the upper end of standard 14 at 25 are two angularly extending lifting memhere 26. These members are positioned on the opposite sides of the standard 14 and are braced together by transverse bars 26. These transverse bars are further reinforced by cross brace rods 26 secured to the cross bars 26. Rotatably mounted between and adjacent the rear end of the lifting mem- I bers 26 are two sheaves 27 for the purpose hereinafter set forth.

My improved extensible mechanism for adjustably extending the fork of the stacker to a greater height comprises a pair of oppositely disposed parallel bars 28 Divotally secured at 25 to the standard 14. The front end -of the bars 28 are connected together by a transverse block 29 and, through an eye bolt 30 connected to the cross block 29 and chain 31, the bars 28 may be adjustably connected to the standard 14 by a hook 32 fixed to the standard 14. The upper and rearmost part of the bars 28 have pivotally secured thereto brackets 33 which in turn are fixed to a supplemental frame 34 comprising two. oppositely disposed diverging members 35. Pivotallysecured intermediate 1 the ends of the supplemental lifting members 35 are brackets 36 which are fixed to one end of oppositely disposed bars 37. The oppositely disposed bars 37 are braced together by transverse members 37 securingithe upper and lowerends respectively. These transverse members are further reinforced by cross brace rods 37 v(see Fig. 2). The forward ends of the bars 37 are pivotally secured to the forward end of the lifting members 26 by means of pivot brackets 38. This construction provides substantially parallel pivoted connections am 37 sp ed ap rt l n l y of the frames 26 and 34. Secured to the forward end of supplemental lifting members are the forwardly extending arms 39 which have mounted thereon the fork 40. The fork 40 comprises a plurality of longitudinally extending tines 41 fixed to a transverse cross bar 42 and a rear guard 43 braced to the fork by brace rods 44. Se cured to the rear guard 43 by means of an eye bolt 45 is a rope 46 which normally maintains the fork 40 in its horizontal position and controls the same for dumping the hay when the fork has been raised to its elevated position. The rope 46 extends rearwardly and is trained about a sheave 47 po sitioned between and secured to the rear ward end of the supplemental lifting frame 34. From here the rope 46 extends forwardly and is trained about a second sheave 48 fixed to the forward cross bar 26 secured to the lifting members 26. From here the rope 46 extends rearwardly and is trained about a third sheave 49 journaled between the lifting members 26. From this point the rope 46 extends downwardly and is adjustably secured to a bracket 50 which 7 is pivotally secured to a lever 51 pivoted to the lever 19 at 52. The lever 51 is normally held in the position shown in Fig. 1 by a stop or a lock 53 secured to the lever 19. From the above description it will be understood that the tilting or dumping of the fork 40 is controlled through the rope 46 to the manually operable lever 51. The mechanism for lifting and lowering the stacker comprises a cable 53 having one end securedto the lever 19 at 21. From here the cable 53 is trained about the sheaves 27 and 24 journaled on the members 26 and on the lever 19 respectively. From the forward sheave 24 the cable 53 is trained about a sheave 54" journaled in a bracket 55 pivotally secured to ahook 56 which in turn is secured to the standard 14. From here the cable 53 is passed around the friction clutch controlling sheaves 57 which control the elevating and lowering of the stacker by the hand operated lever 58. For a more detailed description of this hoisting or friction controlling mechanism see my Patent No. 1,012,005, December 19, 1911.

In the operation of the above described device, the extensible mechanism may be a'djustably controlled by connecting the chain 31 with its various links to'the hook 32 fixed on the standard 14. In other words, if theoperator desires to elevate the fork to its maximum height, the chain is connected to the hook 32 so that the entire slack in the chain is eliminated, that is, when the stacker is in the dotted line'position' shown in Fig. 1, and thus, by the draft being applied to the cable 53, the lifting frame 26 'is swung in a clock-wise direction about the pivot 25*an'd the lifting bars 28 in substantial parallelism with the lifting frame 26 and thus elevating the fork 40 to its maximum elevation. If it is desired by the operator, not to employ the extensible mechanism, the chain 31. may be disconnected from the hook 32 and thus the regular stacker, with the lifting frame 26 and the supplemental lifting frame 34, swing about the pivot 25 as a single frame. It will be understood from the above description that positions intermediate the two positions justdescribed may be attained by adjustably securing the various links of the chain 31 to the hook 32 fixed to the standard 14. It will be further understood that when the fork is elevated to a predetermined height, the stacker may be swung in a horizontal plane on the standard 14 by means of the lever 19 and when the desired elevation is attained. The tilting of the fork 40 is obtained by releasing the lever 51 from the stop 53 and thus, through the rope 46, the load on the fork 40 is. discharged.

While I have described one embodiment which my invention may assume in practice, it will be understood that the same is capable of modification and that modification may be employed without departing from the spirit and scope of my invention as expressed in the following claims.

What I claim as my invention and desire to secure by Letters Patent is:

1. In a hay stacker, a main frame, a standard swivelly mounted in said main frame, a lifting frame pivotally. secured to said standard, asupplemental lifting frame having a fork positioned at one end thereof and connected to ,move upwardly'from said first mentioned lifting frame, said connection comprising bars pivoted between their ends to said standard and connected to said supplemental lifting frame for moving said supplemental lifting frame upwardly-with respect to said first mentioned lifting frame.

2. In a hay stacker, a main frame, a standard pivotally mounted in said main frame, a lifting frame pivotally securedto said standard, a supplemental lifting frame having a fork positioned at one end thereof and connected to move upwardly and outwardly from and parallel to said first mentioned lifting frame, said connection comprising bars pivoted to said standard between their ends and connected to said supplemental lifting frame for moving said supplemental lifting f *ame with respect to said first mentioned lifting frame;

3. In a stacker, a support movable on, a vertical axis, a main lifting frame pivotally mounted on said support to'swing vertically,a supplemental frame positioned above the main frame and connected therewith by vertically swinging pivoted members, and means comprising a connection between the support and one of said members for causing movement of said members on their pivots through actuation of the main lifting frame.

4. In a hay stacker, a main frame, a standard swivelly mounted in said main frame, a lifting frame pivotally carried intermediate its ends by said standard, a

supplemental lifting frame having a fork positioned at one end thereof, longitudinally spaced connecting members pivoted to said lifting frame and said supplemental lifting frame, one of said connecting members having a pivot co-axial with that of the lifting frame on the standard, means for controlling the swing of said member on said pivot, and means for raising and lowering the lifting frame on its pivot.

In testimony whereof I affix my signature.

CHARLES PEARSON.

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