US743535A - Cultivator. - Google Patents

Description

PATENTED NOV. 10, 1903.

J. H. MARTIN.

GULTIVATOR.

AYIVQLIGATION FILED N 0V. 28. 1902.

H0 MODEL.

W/7'NE5555 m if H /Z w WW m Zfi wf .Jwf J. Mm? N? k YHE Norms virus 00.. rneraum UNITED STATES Patented November 10, 1903. A

PATENT OFFICE.

JOSEPH H. MARTIN, OF RIVERSIDE, CALIFORNIA, ASSIGNOR OF ONE-HALF TO R. W. A. GODFREY, OF RIVERSIDE, CALIFORNIA.

cu LTtVATOR.

SPECIFICATION forming part of Letters Patent No. 743,535, dated November 10, 1903-.

Application filed November 26, 1902. Serial No. 132,957. (No model.)

To wZZ whom it Vita/y concern:

Be it known that I, JOSEPH H. MARTIN, a citi zen of the United States, residing at Riverside, in the county of Riverside and State of California, have inventednew and useful Im-.

provements in Cultivators, of which the following is a specification.

My invention relates to a cultivator to be operated by power preferably carriedon the cultivator; and the objects thereof are to produce a machine which carries its own power and in which the cultivating means may be carried either entirely above the surface of the ground or may engage therewith, so as to cultivate the soil. I accomplish these objects by the mechanism described herein and illustrated in the accompanying drawings, forming a part hereof, in which- Figure 1 is a perspective view of my cultivator with parts broken away for clearness of illustration. Figs. 2 and 3 are details of the cultivator-wheels. Fig. 4 is'a detail view of shaft and double ratchet-wheel.

In the drawings, A is the main frame of my.

cultivator, in the rear end of which are mounted the traction-wheels B, and in the front end is mounted the steering-wheel 0, having the guiding-lever D. To each side of and near the front end of the main frame are pivoted at a. the bars E, to which are secured boxes F, in which is revolubly mounted the axle G, on which are rigidly mounted the cultivator-wheels H, having secured to their peripheries the removable stirrer-teeth I, which are set, preferably, near the edges thereof, those on one side alternating with those of the other side. There may be as many of these teeth as desired. To the rear end of the bars E are pivoted rack-bars J, whose teeth mesh with gears K, rigidly mounted on shaft L, which shaft is revolubly mounted in bearings M, affixed to the frame. On shaft L is rigidly mountedsprocket-wheel N, which is connected by sprocket chain 0 with sprocket-wheel P, mounted on shaft R. On shaft R-is rigidly mounted the ratchet-wheel S, having two sets of teeth, one set, 0, for the engagement of one end of the pivoted lever T, which is normally held spring-pressed in engagement with the ratchet to prevent the rotation of shaft R, and the other set of teeth,

0', are engaged by dete'nt-dog U, operatively connected to lever V, which is loosely mounted on shaft R, by means of which shaft R may be rotated in either direction when lever T is out of engagement with teeth 0 to cause the cultivator-wheels to be carriedentirely the drawings, or to cause them to contact with the ground and, if desired, to also ele vate the traction-wheels above the surface of the ground, and thereby to throw the whole or a part of the weight of such wheels and the part of the weight of the other parts which is carried by them upon the cultivator-wheels. A sprocket-wheel W is rigidly mounted upon the axle of the traction-wheels and is operatively connected by sprocket-chain X with one side of the double-toothed sprocketwheel Y, which is loosely mounted on shaft L. The other side of said double-toothed sprocket chain Z with sprocket wheel b, loosely mounted on shaft 0, which is rotatively mounted in bearingsd,aftixed to the frame. On shaftc is also loosely mounted sprocket-wheel e, which is operatively connected by sprocketchain f with sprocket-wheel g, rigidly mounted on axle G. Between sprocket-wheels Z2 and e is slidably mounted a clutch t', rotatable with shaft 0, which clutch is adapted to lock either wheel b or wheel e to shaft c, and thereby cause either the traction-wheels or the cultivator-wheels to drive the machine when it carries its own power. A gasolene-engine j is mounted on the front end of the frame and is operatively connected to the crank it of shaft c by pitman Z. Shaft c, which may be called the driving-shaft, carries fly-wheel m. A seat n is affixed on the front of the frame for the use of the operator. In the operation of my cultivator when it isdesired to transport the machine from place to place the cultivator-wheels are drawn up out of contact with the ground, and clutch 7 is thrown to lock sprocket b to shaft 0, as shown in the drawings, and the gasolene-engine is started. The machine is then propelled by the power furnished by the engine, the traction-wheels propelling the machine and the operator guiding it with lever D. When the machine has reached a field that is to be cultivated, the

above the surface of the ground, as shown in sprocket-wheel is operatively connected by IOC clutch is thrown out of engagement with sprocket b and into engagement with sprocket e. The cultivator-wheels are then lowered so as to engage the ground and then become the driving means instead of the traction- Wheels, which are then idlers, and may be raised entirely off the ground, if desired, levers I and V being properly operated to effect that object, the stirrer-blades operating to cultivate the soil. Ifdesired, power could be applied to draw the machine which was not carried by the machine. In such case it would preferably be attached to the forward end of the frame. I have shown the operative parts connected by sprocket-chains, as they are light and strong; but, if desired, shafting and gearing suitable therefor may be used to impart motion between the parts of the machine. Other power than a gasolene-engine may be used on the cultivator to drive it, such as an electric-motor driven by storage batteries; but I prefer the gasoleneengine, as it is lighter.

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

1. A cultivator comprising a frame, traction-wheeis carried thereby, means for guiding the cultivator, an auxiliary frame pivotally secured to the main frame, a cultivatorshaft journaled in the auxiliary frame, cultivators secured on the shaft, racks pivotally secured to the auxiliary frame, a pinion journaled on the main frame, pinions secured thereon, the pinions engaging the racks,

\ means for actuating the pinions to raise and lower the racks and the cultivators, means when the cultivator-shaft is actuated and vice I versa whereby the cultivators and tractionwheels each serve to drive the cultivator at difierent times.

2. A cultivator comprising a main frame having apertures therein, a traction-axlejournaled therein, traction-wheels carried by the shaft, means for guiding the cultivator, an auxiliary frame, one end of which is pivotally secured in one of the apertures of the main frame, a cultivator-shaft journaled in the auxiliary frame, cultivator-wheels carried by the cultivator-shaft, racks pivotally secured to the free end of the auxiliary frame, the cultivator-shaft lying between the pivoted end and the free end of the auxiliary frame, the racksextending through aperturesformed in the main frame and means engaging the racks to raise and lower the auxiliary frame.

3. A cultivator comprisinga frame, a traction-axle, traction-wheels carried thereby, means for guiding the cultivator, an auxiliary frame pivotally secured to the main frame, cultivatorwheels carried thereby, means for raising and lowering the auxiliary frame, means for actuating the tractionwheels and means for actuating the cultivator-wheels, the various means each independent of one another and actuated nonsimultaneously, the cultivator-wheels serving also as traction-wheels when the cultivator is in operation, the traction-wheels remaining unactuated.

4. A cultivator com prisinga main auxiliary frame pivotally secured to the main frame and extending rearwardly from its pivotal point, racks carried by one of the frames, gears carried'by the other frame and engaging the racks, and means for operating the gears, a partial movement of which in one direction is adapted to lower the auxiliary frame with respect to the main frame and a continued movement of the gears adapted to raise the main frame with respect to the auxiliary frame.

5. A cultivator com prising a main frame, a traction axle journaled therein, tractionwheels carried thereby, an auxiliary frame pivotally securedto the main frame, a cultivator shaft journaled therein, cultivatorwheels carried by the shaft, a pinion-shaft journaled in the main frame pinions carried thereby, racks carried by the auxiliary frame and meshing with the pinions means for actuating the traction-axle, and separate means for actuating the cultivator-shaft, the means so located with reference to one another that one is out of operation when the other is in operation, whereby the cultivator wheels serve also as traction-Wheels when the traction-wheels proper are idle.

6. A cultivator comprising a main frame, a traction axle journaled therein, tractionwheels carried by the axle, an axuiliary frame movable with relation to the main frame, a cultivatorshaft journaled in the auxiliary frame, cultiva tor-wheels carried by the shaft, racks secured to the auxiliary frame, a pinion-shaft mounted on the main frame, pinions carried by the shaft and meshing with the racks, a drive-shaft mounted on the main frame, means for driving the shaft, and separate and independently-operated means for actuating the cultivator-shaft and the traction-axle, the cultivator-shaft and tractionaxie adapted to be operated alternately 7. A cultivator comprising a main frame, an auxiliary frame attached and movable with respect to the main frame, racks carried by the auxiliary frame, a pinion-shaft mounted on the main frame, pinions carried by the shaft and meshing with the racks, a secondary shaftlikewise mounted on the main frame, gearing extending between the two shafts, a ratchet-wheel mounted upon the secondary shaft, a lever for rotating the ratchet and consequently the two shafts and means for retaining the ratchet in locked position.

8. A cultivator comprising a main frame,

an auxiliary frame attached and movable with respect to the main frame, racks carried by the auxiliary frame, a pinion-shaft mounted on the main frame, pinions carried by the shaft and meshing with the racks, a secondit against rotation.

secured upon the shaft, each periphery proary shaft likewise mounted on the main frame, gearing extending between the two shafts, a double ratchet-Wheel secured to the secondary shaft, a lever for rotating the ratchet and consequently the shafts and pinions and a locking-lever engaging the ratchet-wheel to lock 9. A cultivator comprising a main frame, a traction axle journaled therein, tractionwheels secured to the axle, an auxiliary frame secured and movable with relation to the main frame, cultivator-wheels carriedby the auxiliary frame, a pinion-shaft journaled on the main frame, a double sprocket loosely mounted thereon,a sprocket mounted on the traction-axle, a drive-shaft, a sprocket carried thereby and chains connecting the sprockets to actuate the traction-axle.

10. A cultivator comprising a frame supported upon, traction-wheels, an auxiliary frame movably secured to the main frame, a shaft carried by the auxiliary frame, and a plurality of broad, solid, annular peripheries vided with a plurality of removable teeth extending outward therefrom, each tooth provided witha stem passing through the periphery and means engaging the stem and the innor surface of the periphery to retain the teeth in position.

11. A cultivator comprising a frame supported upon traction-wheels, an auxiliary frame movably secured to the main frame, a shaft carried by the auxiliary frame, the ends 1 of the shaft protruding beyond each side of the cultivator, a plurality of annular broad disks secured upon the shaft, inside and outside the frame, the peripheries being provided with teeth.

12. In a cultivator, the combination with a main frame, a guiding-wheel at the front end and an axle and traction-Wheels secured thereto at the rear end thereof, of an auxiliary -mounted on the pinion-shaft, a secondary shaft carried by the main frame, a sprocket secured thereto, a sprocket-chain connecting Y the sprockets, a den ble-toothed ratchet-wheel secured to the secondary shaft, a pivoted detent-lever engaging the ratchet-wheel to prevent the rotation of the shaft, and an oper- I ating-lever engaging the ratchet to rotate the latter when the detent-lever is released.

In witness thatl claim the foregoing I have hereuntosubscribed my name this 15th day of November, 1902.

JOSEPH H. MARTIN.

Witnesses:

G. E. HARPHAM, HENRY T. HAZARD.

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