US554952A

US554952A - poole

Info

Publication number: US554952A
Authority: US
Publication date: 1896-02-18
Anticipated expiration: 1913-02-18

Description

3 Sheets-Sheet 1. S. D. POOLE.

OULTIVATOR.

(No Model.)

Patented Feb. 18, 1896..

3 Sheets-Sheet 2. S. D. POOLE.

OULTIVATOR.

N0 Model.)

N0. 554,952. Patented Feb. 18, 1896.

(No Model.) asheetssheet a.

s. D.'POOLE.

UULTIVATOR.

No. 554,952! Patented Feb. 18, 1896.

UNITED STATES PATENT OFFICE.

STALEY D. POOLE, OF MOLINE, ILLINOIS, ASSIGNOR TO THE DEERE & COMPANY, OF SAME PLACE.

cu LTIVATO R.

SPECIFICATION forming part of Letters Patent No. 554,952, dated February 18, 1896. Application fil d December 28, 1895. Serial No. 573,646. (No model.)

To all whom it may concern:

Beit known that I, STALEY D. POOLE, acitizen of the United States, residing at Moline, in the county of Rock Island and State of Illinois, have invented certain new and useful Improvements in Cultivators; and I do hereby 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.

This invention relates to cultivators, but more particularly to those employing disks.

The primary object of my invention is to provide means whereby the disks may be shifted at such an angle with relation to the line of draft that the greater resistance offered by the disks on one side of the machine over those on the other side will cause both sets of disks to move to the right or to the left, according to the position in which they are placed, without the necessity of shifting the disks by main force or. shifting the frame with said disks, yet permitting the disks to readily assume their proper positions when shifted the desired distance.

Another object is to provide means whereby the disks may be adjusted vertically on separate stems, and to so connect the stems that those composing each gang may be simultaneously adjusted to different angles.

A further object of the invention is to provide means for yieldingly holding the disks to their work and to permit both gangs of disks to be either simultaneously raised or lowered.

With these and other objects in view the invention consists in the construction and combination of the several parts, substantially as hereinafter described, and more particularly defined in the claims at the end of the description.

Referring to the accompanying drawings, forming a part of this specification, Figure 1 is a perspective View illustrating the invention as applied to a double-gang cultivator. Fig. 2 is a section on the line II II of Fig. 4,

showing in elevation the gang heads or frames and connections removed from the machine. Fig. 3 is a plan view of Fig. 2 on a somewhat smaller scale, showing the disks in their normal position. Fig. 4 is a similar view to Fig. 3, except that the disks are in a position to cause the same to move to the right. Fig. 5 is a fragmentary plan View illustrating the extent to which the angle of the disks may be varied. Fig. 6 is a perspective View of one form of lifting attachment for the disks and means whereby said disks may be readily guided by the operator from the rear of the machine; and Fig. '7 is a detail front perspective View of the lifting attachment shown in Fig. 6, illustrating how the seat for the driver may be removably attached to the frame.

In the drawings, A A may designate the wheels, B the arched axle, and O the tongue, all of which may be of the usual or of any preferred form. The tongue may be connected to the arched axle by the straps c c and the braces c c, from the former of which extend rearwardly the arms 0 c provided with hooked inner ends 0 0 adapted to pass under the lower edges and embrace the sides of said straps. These arms rest upon the axle B, and have converging outer ends upon which is supported a seat 0, as shown in Fig. 7, so that by lifting the arms to disengage the hooks c c the seat may be readily removed from the frame.

The draft-beams D D are preferably secured to the tongue 0, so that they may be raised, lowered, or shifted laterally on the same, and may have their upper ends secured to outwardly-extending arms 0 c of a yoke 0 which latter is loosely supported on said tongue, or said beams may be connected to the tongue in any other preferred manner. These beams extend downwardly and may be rigidly secured together at their rear portions by the brace (Z, and have extending outwardly therefrom the bars d cl which carry the stirrups d (P; or said bars may have secured thereto the rearwardly-extending handles d d as shown in Fig. 6, so that the angle of the disks with respect to the line of draft may be changed either by the driver While in his seat or While walking in the rear of the machine, as will hereinafter appear.

At E E are brackets secured to the ends of the draft-beams, to which are pivotally secured the heads or gang-heads E E, each head preferably comprising two plates e e, which are rigidly secured together by belts or otherwise. The plates 6 e, comprising the gangheads, are approximately L-shaped, but I do not desire to confine myself to any particular form, as the same will vary according to the location of the disks.

The upper plates of the gang-heads may have raised central portions 6 6 in which are arranged rotatable studs or spindles c e forming second pivoting-points for said heads, and these spindles may be connected by an arched bar 6 the ends of which are provided with a series of perforations e, so that the bolt securing the bar to the spindles may be changed to vary the distance between the gangs.

The gangs or disk-carrying heads E E have a series of castings or hollow sleeves G, journaled between the plates 6 e, in which are arranged the stems g which support the disks 9', the said stems being vertically adjustable in the sleeves and held in the desired position by means of the set-screws 9 Each sleeve G is provided with an outwardly-extending arm which is pivotally connected to a strap or bar 9 by means of the bolts y so that all the disks in each gang may be simultaneously adjusted or placed atany desired angle.

The strap or bar g may be retained in an adjusted position in any approved manner, but I preferably provide a series of apertures g in the plates 6 of the gang-heads, arranged in the arc of a circle with one of the sleeves as a center, and in which is placed a pin g which engages a like aperture in one of the arms of each gang. This arrangement permits the disks of each gang to be adjusted to the desired angle by simply shifting the pin from one aperture to another and moving the strap or arm of one of the sleeves in position to be engaged by the pin.

For the purpose of raising the entire gang or gangs of disks I may provide toothed arcs II II, which are located above each gang and secured to the arched axle B and the braces c. To these arcs are pivoted the bell-crank levers h h, having the usual spring-catch to engage the teeth of the arcs for retaining the levers in different positions, the said levers each having a chain or other suitable connection h with the ends of the arched bar a, so that by shifting the levers the gangs will be raised or lowered as desired.

Instead of the lifting attachment shown in Fig. 1 I may prefer to use an attachment such as shown in Figs. 6 and 7. I11 this case a shaft is journaled in standards 7t k arranged upon the axle B or other portion of the frame, the standard 7: being provided with a rack at its upper end and adapted to be engaged by a spring-pressed pawl operated by a thumb-lever k, the latter being pivoted near the upper portion of the operating-lever L. 011 the inner end of the shaft 7i is a crank m, secured thereto or formed integrally therewith, which is connected by a link on or otherwise to the central portion of a cross-bar m in the ends of which are pivotally or otherwise arranged apertured blocks m m through which the upper ends of vertically-disposed rods m m are passed. These rods are adapted to slide in the apertured blocks, and have pins or stops on m at their upper ends to limit their downward movement and to engage the blocks or cross-bar m when said bar is raised, and at their lower ends are provided with hooks or eyes adapted to engage the arched bar 0-, so that the gangs may be simultaneously raised when the cross-bar is lifted by the lever L. Arranged upon the rods 172 112 are the collars m m and the spiral springs m m the latter being interposed between the blocks m m and said collars in order that the gangs may be yieldingly held to their work, so that ob structions may be readily passed, either independently or in conjunction with each other. The lever L is secured to the shaft 7.: and may have a block or projection 01 thereon, which is provided with an aperture, through which is passed the end of a slidable rod or bar it, the lower end of said bar being pivotally secured to a stud 01 located 011 the standard It and provided with a spring a surrounding the same and interposed between its pi votingpoint and the projection n, so that as the lever is moved in a direction to lower the disks the spring will be compressed, while an opposite movement of the lever will be assisted by the recoil of said spring, thereby assisting the operator in lifting the ga n The operation of the machine will be readil y understood from the foregoing description in connection with the drawings.

It will be seen, should the disks be adjusted to the desired position and angle, as heretofore described, and it is wished to move the disks either to the right or to the left, that if the driver shifts the draft-beams D D to the right, illustrated in Fig. 4, by means of the stirrups d (l or by the handles (1 d the gang of disks on this side will assume a greater angle with respect to the line of draft than the disks on the left, thereby causing the disks during the forward movement of the machine to move to the right on account of the resistance offered by the disks on this side overcoming the resistance of the gang of disks on the left. When the disks have moved sufficiently to the right, and the pressure on the stirrups or handles is released, the gangs will assume the position shown in Fig. 13y shifting the draft-beams to the left the reverse movement of the disks will occur, thereby shifting the disks in that direction. This arrangement permits the disks to be shifted to the right or to the left to compensate for any unevenness in the rows of corn or other plants without the necessity of shifting the disks by the main force of the operator or of shifting the frame together with said disks. At the same time the disks, through the springpressed rods m and the connections between said rods and the operating-lever L, will be yieldingly held to their work and permitted to be simultaneously raised or lowered.

It is obvious that I might use some of the parts with cultivator blades or teeth instead of disks, and that the number of disks or blades in each head E may be varied, or the operating-lever L may have an angular end and be connected directly to the cross-bar m Instead of using the apertures g and the pin 9 it may be desirable in some instances to use a sliding bolt on one of the arms g of the castings G which engages a serrated edge of the plate 6 of the heads, or a spring-catch may be used instead of the sliding bolt to engage serrations or projections on the plates 6. It is evident that a lateral adjustment of each disk separately may be accomplished by moving the arm g until the disk has the desired position and then fastening the arm in some suitable manner to the strap or bar g Other means may be employed than the stirrups for shifting the heads E on their pivots, and other means of pivoting the heads may be used if so desired. I therefore do not wish to confine myself to the exact construction shown, as other changes may be made without departing from the spirit of my invention.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is

1. In a wheel-cultivator, the combination with a suitable frame, of the draft-beams arranged on opposite sides thereof and secured to said frame so as to adapt said beams to be shifted laterally thereon, a head carrying one or more cultivating devices pivotally secured to the rear portion of each beam so as to move freely thereon, a second pivot for each head located in the rear of the first-mentioned pivoting-point, means for connecting the heads so as to cause the same to move in unison, together with means for shifting said heads 011 their pivots, whereby the cultivating devices carried by the heads may be simultaneously placed at different angles with respect to the line of draft and to each other so that both heads may be moved either to the right or to the left independent of the frame according to the position of the cultivating devices, substantially as described.

2. In a wheel-cultivator, the combination with a suitable frame, of the draft-beams arranged on opposite sides thereof and secured to said frame so as to adapt said beams to be shifted laterally thereon, a head carrying one or more cultivating devices pivotally secured to the rear portion of each beam so as to move freely thereon, a spindle arranged in each head at the rear of the pivot securing said head to the beam to serve as a second pivoting-point for said head, a bar connecting the spindles, together with means for simultaneously shifting the heads on their pivots, whereby the cultivating devices carried by the heads may be placed at different angles with respect to the line of draft and to each other so that said heads may be moved together either to the right or to the left independent of the frame according to the position of the cultivating devices, substantially as described.

3. In a wheel-cultivator, the combination with a suitable frame, of the draft-beams arranged on opposite sides thereof, a head carrying one or more cultivating devices pivot- I ally secured to the rear portion of each beam so as to move freely thereon, a second movable pivot for each head arranged in the rear of the first-mentioned pivotin gpoint,together with means for shifting the heads on their pivots, whereby the cultivating devices carried by the heads may be placed at different angles with respect to the line of draft and to each other so that both heads may be moved either to the right or to the left independent of the frame according to the position of the cultivating devices, substantially as described.

4. In a wheel-cultivator, the combination with a suitable frame, of the draft-beams ar ranged on opposite sides thereof and secured to said frame so as to adapt said beams to be shifted laterally thereon; said beams having a brace for causing both to move in unison,

a disk-carrying head pivotally secured to the rear portion of each beam so as to move freely thereon, a spindle arranged in each head forming a second pivoting-point to the rear of the first-mentioned pivoting-point, abar connectin g the spindles together, and means for shifting the heads on their pivots, whereby the angles of the cultivating-disks carried by the heads may be simultaneously placed at different angles with respect to the line of draft and to each other so as to cause the heads to move either to the right or to the left independent of the frame, according to the position of said disks, substantially as described.

5. In a cultivator, the combination with a a gang-head comprising two plates secured together, of a series of sleeves arranged between and journaled in said plates, cultivating devices carried by the sleeves and independently vertically adjustable therein arms extending outwardly from the sleeves, a strap connecting the arms pivotally together for adjusting the same in unison, and means for retaining the arms in an adjusted position so that the angles of the cultivating devices may be simultaneously changed, substantially as described.

6. In a cultivator, the combination with the draft-beams and a brace securing said beams together, of the disk-carrying heads pivotally secured to said beams, spindles carried by the heads to serve as pivots therefor, an arched bar connecting the spindles, and arms carrying stirrups secured to the draft-beams, whereby the angles of the disk-carrying heads may be simultaneously shifted to vary the angles of the cultivating devices carried thereby, substantially as described.

7. In a cultivator, the combination with a gangehead, of a series of sleeves carried by said head, stems carrying cultivating devices arranged in the sleeves to be vertically adj ustable therein and means for independently securing each stem in an adjusted position, whereby the said stems may be adjusted independent of each other, substantially as described.

S. In a cultivator, the combination with a gang-head having a series of apertures arranged in said head, of a series of sleeves j ournaled in the head and carrying on lti vatin g devices, arms extending from the sleeves, a strap connecting the arms pivotally together, and a pin adapted to engage one of the apertures in the head and an aperture in one of the arms, whereby the angle of the cultivating devices may be changed and retained at the desired angle, substantially as described.

9. In a cultivator, the combination with a gang-head, of a sleeve j ournaled in said head, a stem carrying a cultivating device vertically adjustable in the sleeve, means for retaining the stem in an ad jnsted position, together with means for retaining the sleeve at different angles, substantially as described.

10. The combination with a gang-head or disk-supporting frame, of a series of revolving disks carried by said frame each provided with a vertically-adj ustable spindle and means for securin g the same at different elevations with respect to the supporting-frame, to adapt one or more disks in the series to be set so as to cut at a greater or less depth than the others, and devices for simultaneously varying the angles of the series of disks to the line of draft and maintaining each disk in the series at the same angle as its fellows, substantially as described.

11. A lifting attachment comprising a suitable lever and a cross-bar loosely connected thereto, vertically disposed rods slidingly held in said cross-bar, one on each side of the point of attachment to said lever, and a spring interposed between the ends of each of said rods and said cross bar, substantially as described.

12. A lifting attachment comprising a shaft having a crank at one end, and an operatinglever at the other, a cross-bar connected centrally to said crank, blocks pivoted in the ends of the cross-bar, vertically-disposed rods slidingly held in said blocks, and springs interposed between the ends of said rods and the blocks, substantially as described.

13. A lifting attachment comprising a shaftprovided with a suitable crank, a lever for retating said shaft, a cross-bar connected at its central portion to said crank, and verticallydisposed rods arranged in the ends of said cross-bar, substantially as described.

1%. In a cultivator, the combination with the gang-heads, of a shaft having a crank at one end and a lever for rotating said shaft at the other, a cross-bar connected at its central portion to said crank, blocks pivoted in the ends of the cross-bar, vertically-disposed rods slidingly held in said blocks, collars arranged on said rods, together with springs interposed between said blocks and collars for yicldingl y forcing the gang-heads downward so as to yieldingly hold the cultivating devices carried by said heads to their work, substantially as described.

15. A lifting device comprising a shaft provided with a suitable crank, a cross-bar connected at its central portion to said crank, vertically-disposed rods arranged in said crossbar, a lever for rotating said shaft, and a spring adapted to be compressed when the lever is moved in one direction and to assist said lever to raise the rods when moved in the other direction, substantially as described.

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

STALEY D. POOLE. \Vitnesses:

FRED II. Coornn, JOHN GALT.