US723992A - Hay-stacker. - Google Patents

Description

PATENTED MAR. 31, 1903..

J. H. COPE.

HAY STAOKER.

APPLICATION FILED MAY 5. 1902.

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PATENTED MAR. 31 1903. J. H. COPE. HAY STAGKEB. APPLICATION FILED MAY 6. 1902.

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No. 723,992. PATENTED MAR. 31, 1903. J. H. COPE.

HAY STAGKER. 'APPLIOATION FILED MAY 5. 1902.

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' NITED 7 STATES PATENT OFFICE.

JOSEPH H. COPE, OF NEW WINDSOR, COLORADO, ASSIGNOR OF ONE-HALF TO HARRISON TELLER, OF. NEW WINDSOR, COLORADO.

HAY-STACKER.

SPECIFICATION forming part of Letters Patent No. 723,992, dated March 31, 1903. Application filed May 51 1902.- Serial No. 106,087. (No model.)

To all whom it may concern;

Be it known that I, JOSEPH H. COPE, acitizen of the United States of America, residing at New Windsor, in the 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 it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

My invention relates to improvements in hay-staokers; and it consists of the features, arrangements, and combinations hereinafter described and claimed, all of which will be fully understood by reference to the accompanying drawings, in which is illustratedan embodiment thereof. r 7

Certain features shown. and described in the application, but not claimed herein, are claimed in a previous application filed by me August 12, 1901, Serial No. 71,694.

In the drawings, Figural is a side elevation of my improved construction,the stackerhead being shown in the lowermost position. Fig. 2 is a side elevation with the stackerhead in the raised position. Fig. 3 is a plan View of the construction with the parts in the relative position shown in Fig. 1. Fig. 4 is an enlarged sectional view taken on the line a; m, Fig. 1. p

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

'Let the numeral 5 designate a relatively stationary framework provided withbottom bars 5 and upwardly projecting bars 5 and 5. Upon the rear portion of this frame near the bottom is pivotally connected, as shown at 6, a lifting-frame composed of twobars 6. The head 8 of the stacker is secured to two arms 9, whichare slidably connected with the bars 6 of the lifting-frame in any suitable manner. As shown in the drawings, a metal strap or guide-casting 10 is secured to each arm 9 and passes around the'adjacent' bar of the liftingframe. Near the forward extremity of each bar 6 is also secured a guidebracket 12, which passes around the adjacent arm 9 of the stacker-head. The arms 9 slide freely in these brackets. Another similar guide-bracket 13 is made fast to each arm 9 and projects on opposite sides of the adjacent bar 6 of'theli-fting-frame.

s5 Each of these last-named brackets 13 is pivotally connected with one extremity of a bar 14, whose opposite extremity is pivoted on the frame at a point 14 above the pivotal points 6 of the bars 6 on the lifting-frame.

l Pivotally connected at their forward extremities with the stacker-head or liftingframe are two levers 15, one on each side of the machine. Each lever 15 is fulcrumed on one end of a lever 16, as shown at 17. Each lever 16 is fulcrumed at 119 on a bar 5 of the frame. The two levers 16 are connected by 'crossbars 18, located on opposite sides of the lever-fulcru ms. Each lever 16 is provided'at its extremity remote from its connection with the lever 15 with a pulley 20. Each lever 15 is provided at its extremity remote from the stacker-head with a pulley 21. A rope or cable 22 is connected with the pulleys of the levers 15 and 16 on each side of the machine a cable 27, whose opposite extremity is connected with the central part of one of the bars 18, as shown at 28. Between the weight and its connection with the bar 18 the cable passes over a pulley 29, mounted on the upper extremity of a vertical bar 30. A cable 31 is connected with the drum intermediate the parts 23, and a team is hitched thereto for the purpose of hoisting the stacker-head, as will be readily understood. As power is applied to these cables the stacker-head will be lifted from the lowermost position (shown in too Fig. 1) to the uppermost position. (Shown in Fig. 2.) During this operation the extremities of each lever 16 will travel in arcs 32 and 33 and in the directions indicated by the arrow-heads at theextremities of these arcs, referring to Fig. 1 of the drawings. As the pulley extremity ofeach lever 15 moves downwardlyfrom the position shown in Fig. l the pulley 21 passes rearwardly of the pulley 25 and takes the cable from the pulley 25 as the pulley 21 starts forwardly to the position shown in Fig. 2. During the operation of raising the stacker-head the counterbalance weight is raised to its upward limit of movement. (See Fig. 2.) After the pull on the cable ceases to act and it is desired to lower the stacker-head the weight will perform its function until the stacker-head and the lifting-frame form an angle of about forty-five degrees with the horizontal, after which the stacker-head and lifting-frame will move downwardly by gravity. During the gravity movement of the head and lifting-frame the weight 20 is raised and resists the downward travel of the parts sufliciently only to prevent injury to the said parts by too-rapid movement. During this downward movement of the stacker-head each lever 16 follows the arcs and moves in the direction indicated by the arrow-heads at the extremities of these arcs, as shown in Fig. 2.

As the stacker-head moves upwardly it is projected outwardly from the frame by reason of the connection of the bar 14 and the arms 9 and the slidable relation between the arms 9 and the bars (3 ol' the lifting-frame. The degree of the stacker-heads extension or outward movement is the distance between the arcs A and B at the points 0 and D, referring to Fig. 1 of the drawings. Hence by reason of my construction the stacker-head is raised to the same height as it would be if it were of ordinary construction and the head were farther removed from the frame to the extent of the distance between the points 0 and D. It is evident that the nearer the stacker-head is to the frame when in its lowest position the greater the advantage in applying the lifting power through the instrumentality of the cables 22, since the initial lifting force is applied more nearly in a vertical plane or in a plane at right angles to the original direction of the head and its arms 9. The lower arm of the lever 16 forms a movable or swinging fulcrum for the lever 15. The fulcrum-point 17 of the lever 15 must move rearwardly (see Fig. 1) far enough during the raising of the stacker-head to allow the forward extremity of the lever 15 to move in the are 34, which is struck from the pivotal point 6 of the lifting-frame as a center.

Having thus described my invention, what I claim is h 1. In astacker, the combination with a relatively stationary frame, alifting-frame hinged or pivoted thereon, and a stacker-head connected with the lifting-frame, of levers pivrecess otally connected with the stacker-head or lifting-frame, other levers upon which the first-named l'evers are fulcru med, the second levers being fulcrumed on the frame, lifting ropes or cables connected with the two sets of levers, and suitable guides mounted on the frame and engaged by the cables whereby as power is applied to the latter, the liftingframe and stacker-head are raised, substantially as described.

2. In a stacker, the combination with a relativelystationary frame,alifting-frame hinged or pivoted thereon, and a stacker-head connected with the lifting-frame, of means for raising the stacker-head and lifting-frame, comprising two sets of levers, one set being connected with the stacker-head or 1iftingframe and fuleru med on the levers of the other set which last-named set of levers is fulcrumed on the frame, ropes or cables connected with the two sets of levers, and guides on the frame for the cable, substantially as described.

3. In a stacker, the combination with a frame and a stacker-head pivotally connected therewith, of levers pivotally connected with the stacker-head or lifting-frame, other levers upon which the first-named levers are fulcrumed,the second levers being fulcrumed on the frame, and cables connected in operative relation with the two sets of levers, the connections and arrangement being such that as power is applied to the cables, the stackerhead is lifted, substantially as described.

4:. In a stacker, the combination with a stacker-head pivotally connected with the frame, of means for raising the stacker-head, comprising a set of levers pivotally connected with the part to be raised, and another set of levers upon which the first-named set of levers is fulcrumed, the second set of levers being fulcrumed on the frame, guide-pulleys mounted on the two sets of levers, and cables engaging the lever-pulleys, whereby as power is applied to the cables the stacker-head is lifted.

5. In a stacker, the combination with a stacker-head, of means for raising the same, comprising levers connected at one extremity with the part to be raised, guide pulleys mounted on the opposite extremities of the levers, other levers fulcrumed on the frame and provided with guide-pulleys on one ex.- tremity, the first-named levers being fulcrumed on the opposite extremities of the second levers, and ropes or cables engaging the pulleys of the two sets of lovers, the connection and arrangement being such that as power is applied to the cables the stackerhead is raised.

6. In a stacker, the combination with a stacker-head, of means for lifting the said head comprising levers connected at one extremity with the part to be raised, other levers fulcrumed on the frame, the first-named levers being fulcrumed on the second levers, ropes or cables engaging the two sets of 1evers in operative relation, whereby as power is applied to the cables the stacker-head is raised, a counterbalance-weight, a rope connecting said weight with the second set of levers, and a guide-pulley over which the rope passes, substantially as described.

7. In astacker, the combination with a suitable relatively stationary frame, of a liftingframe hinged or pivoted thereon, a stackerhead slidably connected with the liftingframe, alink connection between the stackerhead and the frame, the point of connection with the frame being above the stacker-head when the latter is in the lowermost position, whereby the head is projected outwardly as the lifting-frame is raised, and means for raising the lifting-frame, comprising levers connected at one extremity with the liftingframe, other levers upon which the firstnamed levers are fulcrumed, the second levers being fulcrumed on the frame, and cables connected with the two sets of levers whereby as power is applied to the cables the lifting-frame is raised, substantially as described.

8. In a stacker, the combination with a frame and a stacker-head hinged or pivoted thereon, of a lever connected with the stackerhead or lifting-frame, another lever upon which the first-named lever is fulcrumed, the second lever being fulcrumed on the frame,

and a rope or cable connected with the two levers, the arrangement being such that as power is applied to the cable the stacker-head is lifted, substantially as described.

- 9. In a stacker, the combination with a relatively stationary frame and a stacker-head-

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