US1212950A - Cultivator. - Google Patents

Description

E. M. HEYLMAN.

CULTIVATOR.

APPLICATION FILED JULY 8.19:5.

mm m. Patented Jan. 16,1917.

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E. IV]. HEYLMAN.

GULTIVATOR.

APPHCATION FILED JULY 8| I915- 1 2,95% Patented Jan.16,1917.

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E. M. HEYLMAN.

CULTIVATOR.

APPLICATION FILED JULY 8.1915.

Patented Jan. 16, 1917.

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E. M. HEYLIVIAN.

CULTIVATOR.

1 APPLICATION FILED JULY 8.1915. 1,219.95.

Patented Jan. 16, 1917.

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WITNESSES v INVENTOR RS co r-woro-umm. wAsmrvamm n. c.

EDWARD M. HEYLMAN, OF SOUTH BEND, INDIANA, AS-SIGNOR To OLIVER CHILLEID PLOW WORKS, OF SOUTH BEND, INDIANA.

CULTIVATOIR.

Specification of Letters Patent.

Patented J an. 1 8, 191?.

I Application filed July 8, 1915. Serial No. 38,768.

To all whom it may concern:

Be it known that I, EDWARD M. HEYLMAN, a citizen of the United States, and a resident of South Bend, in the county of St. Joseph and State of Indiana, 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 wheeled cultivators, the improvements being particularly applicable to cultivators of the pendulum type and consist of various features of construction and combinations of parts, whereby the operation and manipulation of the raising, lowering and adjusting of the shovel gangs shall be facilitated and the efliciency of the cultivator enhanced.

In the accompanying drawings: Figure 1 is a side elevation partly in section of a cultivator embodying my improvements; Fig. 2 is a view, partly in section, showing the regulating mechanism in working position; Fig. 3 is a similar view showing position of parts when the cultivator gangs have been raised by operation of the hand lever 30; Fig. 4 is a similar view showing position of regulating mechanism when operated in-. dependently of lever 80, to raise the gangs; and Figs. 5, 6, 7, 8, 9,10, 11,12, 13, 14 and 15 are views showing various details.

1 represents a horizontal main frame which, in the present instance, may comprise a single piece of tubular metal bent into U- form, mounted upon crank axles 2 of wheels 3, as hereinafter more particularly explained. A tongue 4, draft devices 5, and a gang arch 6 are connected with the curved forward end of theframe, and at the rear end of said frame, the ends of a spring saddle 7 are adjustably connected with the re spective members thereof and support a seat 8. a

Brackets 9 are attached to the arch 6, and to these brackets coupling devices 10 are connected by vertical pivots'll. The coupling devices 10 also serve as guides for the forward ends of the beams of cultivator gangs 12, the upwardly curved forward ends of said beams being pivotally connected with the upper portions of said coupling devices by horizontal pivots 13.

Brackets 14 are bolted to the under sides of respective members of the frame 1, intermediate the ends thereof, and are made with tubular portions 15. Respective ends of a tubular transverse bar 16 enter the tubular portions 15 of the brackets 14 and are securely clamped thereto, said tubular bar and the brackets 14, thus constituting, in effect, fixed parts of the horizontal frame of the cultivator. The upper members of the crank axles 2 pass through the tubular portions of the brackets 14 and may enter the tubular transverse bar 16. The said upper members of the crank axles are thus mounted so that they may be turned freely, but they are prevented from longitudinal displacement by means of collars 17 secured by set screws 18 to crank axles and entering grooves 19 in the tubular portions of the brackets 14.

The brackets 14 are made elongated and extend some distance rearwardly of the axle mountings, said rearwardly extending portions being strengthened by means of curved braces 20 cast integral therewith. The brackets 14 thus serve to reinforce the frame 1 to prevent the same from sagging when the operator is upon the seat. The braces 20 act to prevent the rear ends of the frame members from bending inwardly when subjected to strain due to the weight of the operator upon the seat 8, and said curved braces also serve as guides to cause the pendulums (hereinafter described) to move toward the center of the machine (when the gangs are being raised) and thus prevent the soil-e11- gaging members from engaging the wheels.

Braces 21 secured to the brackets 14, extend forwardly therefrom and at their front ends, these braces are secured to respective ends of the gang arch 6.

A bracket 22 is secured to and depends from one of the side members of the frame 1 at a point intermediate of the forward end of said frame and the axle mountings in the brackets 14 and transverse bar 16, and the lower end of this bracket is secured to one of the forward braces 21. A bracket 23 is secured to and depends from the other side member of the frame (diametrically opposite the bracket 22) and is secured at its lower end to the other forward brace 21. A

transverse shaft 24 is mounted near its respective ends in the brackets 22-23 and to said shaft, depending arms 25-26 are secured. These arms are connected with sand bands '27 on the crank axle sections, by

means of longitudinally adjustable connect- :ing rods 28; The arm 25 ismade with an extension 29 (thus forming a bell-crank leyer) and to said extension 29, a hand lever 30 is rigidly secured. A spring-pressed de 'tent 3l is mounted on the hand lever and is .adapted to engage 'a notched segment 32 formed on the bracket 22,,said detent being normally operable by means of a suitable finger lever and connecting red, as is ord1- nary and well known. in the art.

', it is apparent that by raising the hand plained;

other, a detail description of the controlling mechanism for one cultivator gang will suffice for both.

Each bracket 14 is provided with upwardly projectingv lugs 33, with which the 7 lower ends of the members of a mast 34; are

pivotally connected by means of a pivot bolt 35. The mastmembers approach each otherat their upper ends and between said upper ends, a sleeve 36 is loosely mounted on I as a bolt 27 passing transversely through said sleeve andthe mast members. he sleeve 36 is provided with a laterally projecting pin 3I8rwhichpasses'through a transverse hole near the upper end of a pendulum89 and is preventedfrom escape by means of a: cotter f d0.- ,In this manner the upper ends of the mast: and pendulum are pivotally connected together, and each mast is provided with a handleel clamped thereto for a purpose hereinafter explained. r V

Small brackets 4:212 are secured to the respective mastmembers somewhat above their-pivoted lower ends and these brackets are perforated to form bearings for pintles 43 at the largen end of a taperinglink 4-1 as shown in Fig.5. This link is made with an opening] :45" for a purpose. hereinafter explained) 'and'is connected at its forward endto the' rear end of. a spring l6. The

it spring is provided-at its forward end with a plug 47 having ja 'threaded opening for the accommodation of. a rod 48, the forward end of which latter is connected with an anchoring bracket 49 secured to the forward portion of the, main frame 1. i In this manner the spring is adjustably connected with the frame.

no ".Antarm 50, having a slot 51 (see Fig. 6) isgpivotally mounted; at its rear end on the bolt ",VVhlChr connects the mast members A p vwitlrthe bracket l4,and the freeend of this 65 'armisdi'spose'd beneath the link 44 so as to V be capable of being made to engage the latter.

A hand lever 52 is pivotally mounted on the mast and connected with the pivoted arm'50 by means of a rod 53, said rod passing through the opening 45 of link at and entering the slot 51 of arm 50, to which latter it is pivotally attached. The hand lever 52 is constructed to embrace and be capable of movement on a ratchet bar 54- pivoted to the upper portion of the mast, and said lever carries a spring-pressed, manually operable detent 55 to engage the ratchet bar and hold the hand lever and also the pivoted arm in their adjusted positions. The purpose of the hand lever 52 and its connections with the pivoted arm 50 is to provide means for adjusting and controlling the cultivator gang for depth of operation of the soil-engaging members. lVhen the cultivator gang is in lowered position with the soil-engaging members in contact with the ground or nearly so, the adjusting and controlling mechanism will assume the positions shown in Fig. 2 with the pivoted arm' 50 (acting as a stop arm) in engagement with the spring link 4st and locked in such position by engagement of the detent on hand lever 52, with the ratchet bar 54. The operator may now press the shovels of the gang into the ground as the machine moves forward, by pressing upon the gang frame with his foot,said gang frame being provided with a stirrup to facilitate such operation. The spring 46 will serve as counterbalancing means for the cultivator gang, so that when the operator raises his foot and relieves the pressure upon the gang frame, the shovels may be caused V to rise and thus made to conform to the contour of the ground or to escape trash.

7 Should the hand lever 52 be moved in one direction, the stop arm 50 would be raised and, by its engagement with the spring link 44:, the rear end of the latter would also be raised and the mast and pendulum so moved as to slightly elevate the cultivator gang. Should the hand lever 52 be moved in the reverse direction, the cultivator gang would be somewhat depressed, as will be readily understood. In'this manner, the cultivator gang may be readily adjusted for depth of penetration. 1

The rock-shaft 24: is provided with an upwardly projecting arm '56 and between this arm and the mast 34, an extensible connection'57 is provided. This connection comprises a hollow bar or member 58 (having perforations 59 to reduce its weight) pivotally attached to the mast, and a rod or member 60 pivoted to the arm 56 and telescoping within the hollow member 58,said rod (30 having a lug or stop 61 to engage a stop or shoulder 62 on the member 58 and limit the relative longitudinal movements of said 1,21a,eto

members in a manner to limit the extenst bility of said connection.

A. stop 63 is adjustably attached to the mast 34 for cooperation with the spring link 44, in a manner and for purposes presently explained.

It may be assumed that the mechanisms and cultivator gangs are in their normal operative positions, as indicated in Figs. 1 and 2. Should the operator now raise the main operating lever 30, to raise the cultivator gangs, the mechanism would be caused to assume the positions shown in Fig. 3, and during the shifting of the parts from the positions shown in Fig. 2 to the positions shown in Fig. 3, the functions will be performed, as will now be explained. The turning of the rack shaft 24 will cause the shifting of the crank axlemembers and wheels, and the cultivator gangs will be balanced by the springs 46, as has already been described. When the rock shaft 24 is turned by the raising of the hand lever 30, the arm 56 will move forwardly and the connection 57 will be extended until the stops 6162 on its respective members engage each other,-during which the crank axle members and wheels have been partially shifted sufficiently to disengage the shovels from the ground so that the gangs may, to some extent, be counterbalanced on the springs. As the raising of the hand lever 30 is continued, motion will be transmitted from the arm 56 to the mast 34 by means of the connection 57 and latter will be moved forwardly (thus raising the cultivator gang through the medium of the pendulum 39), until the stop 63 on the mast engages the spring link 44, as shown in Fig. 3. The stop will thus prevent further movement of the spring link 44 relatively to the mast, so that any further movement of the mast will stretch the spring 46. In this manner, the spring will act as a cushion to the upward movement of the gang and prevent the gangs from looking up independently of the locking of the lever 30.

It will be observed that the spring 46 performs four difi'erent functions,viz: as a balancing spring for the shovel gang; as a stop for regulating depth as a foot pressure spring for regulating depth, and a cushion for the movement of the mast when the cultivator gang is being raised.

When the lever 30 is lowered, the cultivator gangs will drop by gravity, and the extensible connection 57 will permit the raising and forcing down of the gang, when the lever 30 is in its lowest position.

With my improved construction, the cultivator gangs may be raised by hand, independently of any manipulation of the lever 30. To accomplish such raising of the gangs, the operator will first reverse the position of the stop 63, as shown in Fig. 4, and then push the pendulums forwardly, with the use of the handles 41. The parts will thus be caused to assume the positions shown in Fig. 4 the pivotal connection between the mast and pendulum and the pivotal connecting of the pendulum with the cultivator gang being thus made to aline with the pivotal connection of the mast at 35, thereby automatically locking the cultivator gang in its raised position.

Various slight changes might be made in the details of construction of my invention without departing from the spirit thereof or limiting its scope and hence I do not wish to restrict myself to the precise details herein set forth.

Having fully described my invention what I claim as new and desire to secure by Letters-Patent, is

1. In a cultivator, the combination with a wheeled frame, and a cultivator beam pivotally connected therewith and provided with a soil engaging member, of a pivoted mast, a pendulum connecting said mast with the beam, a link pivoted to the mast, a spring connected with said link and with the frame, a pivoted stop arm to engage the under side of said link, a hand lever on the mast, a rod connecting the hand lever with said stop arm, and means for locking said hand lever at different adjustments. I

2. In a. cultivator, the combination with a wheeled frame, and a pivoted cultivator beam provided with a soil-engaging member, of a pivoted mast, a pendulum connecting said mast with the cultivator beam, a link connected with the mast, a spring connected with said link and the frame, a stop arm under said link, and a stop on the mast to engage over said link when the mast is shifted to raise the cultivator beam.

3. In a cultivator, the combination with a wheeled frame, and a cultivator beam provided with a soil-engaging member, of a mast pivoted at the frame, a pendulum connecting said mast with the cultivator beam, a yielding connection between the mast and the frame, a rock-shaft, an arm on said rockshaft, an extensible connection between said arm and the mast, said extensible connection comprising relatively movable members having cooperating limiting stops, and means for rocking said shaft.

4. In a cultivator, the combination with a frame, crank-axle members mounted thereon, wheels in which said crank axle members are mounted, and a cultivator beam pivotally connected with the frame, of a mast pivoted on the frame, a pendulum connecting said mast with the beam, a rock-shaft supported by the frame, depending arms on said rock shaft, connections between said arms and the crank axle members, an upwardly projecting arm on said rock shaft, a connection between said last-mentioned arm and the mast, said connection comprising relatively movable members provided with limiting means, a lever connected with saidrock shaft, and means for locking said lever. 5. In a cultivator, the combination with a frame, wheels, crank-axlemembers mounted on said frame and having hearings in said wheels, a cultivator beam pivotallyconnected with v the frame, raising devices mounted on the frame and connected with the beam, and a counterbalancing spring connected with said raising devices, of a rock shaft supported by the frame, connections between said. rock-shaft and crank axle members, connections between said rockshaft and raising devices, said connections comprisingrelatively movable members provided with limiting means, a single lever connected with said rock shaft whereby the wheels may be shifted and the beam counterbalanced and the raising devices operated simultaneously by theoperation of said single lever, and means for locking said lever.

6. In a cultivator, thecombination with a wheeled frame provided with an intermediate cross bar, of brackets secured to the members of said frame and secured to the crossbar, each bracket having a braced extension projecting rearwardly of the cross bar, a mast mounted on each bracket,a:pendulum connected with eachmast, and a pivoted cultivator beam connected with each pendulum.

7.111 a cultivator, the combination with a U-shaped frame, wheels, axle members, and pivoted cultivator gangs of brackets secured to said frame and atl'ording bearings for the axle members, a tubular bar connecting said brackets, masts mounted on said brackets, pendulums connected with said masts and with the cultivator beams, and curved braces on said brackets in position to serve as guides for the pendulumsto move the same inwardly and prevent conflict ofthe cultivator gangs with the wheels when the gangs are being raised.

8. In a cultivator, the combination with a wheeled frame, of brackets secured to opposite members thereof, of mast comprising two members pivoted at their lower ends to each bracket, pivoted cultivator gangs, pendulums connecting said mast with the cultivator gangs, brackets secured to the members of each mast, a link having one end disposed between each pair of mast members and pivotally mounted in the brackets thereof, and a spring connecting said link with the frame.

In testimony whereof, I have signed this specification in the presence of two subscribing witnesses.

EDVVA-RD M. HEYLMAN.

Witnesses:

EDWIN NIGAR, KATE E. BUCKLEY.

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

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