US701127A - Plow. - Google Patents

Description

N0. 7Ul,|27. Patented May 27, I902.

1;. E. BARTH. PLOW.

(Application filml June 15. H101.)

(No Model.) 4 Sheets- Sheei I,

124/ v a h. %M% W me "cams pnen so": vnavoumou WASHINGTON. o. a.

No. 713L127. Patented May 27, I902.

G. E. BARTH.

PLOW.

(Application filed June 15, 1901.) (No Mode 4 Sheets-Sheet 2.

Patented May 27, I902. G. E. BARTH.

PLOW.

(Application filed June 15. 1 01) 4 Sl|eets- Sheet 3.

(N0 Mndel.)

0 nine" wuumomu. ov a No. 70LI27. Patented May 27, I902.

G. E. BARTH.

PLOW.

(Application filed June 15, 1901.) (No Model.)

4 Sheets-Sheet 4 Uurrnn STATES ATET @FFIcE.

GEORGE E. EARTH, OF REDLAKE FALLS, MINNESOTA.

PLOW.

SPEGIFLGATION forming part of Letters Patent No. 701 ,127, dated May 27, 1902.

Application filed June 15, 1901.

T0 (tZZ whont zit may concern:

Be it known that I, GEORGE E. EARTH, a citizen of Canada, residing at Redlake Falls, in the county of Red Lake and State of Minnesota, have invented new and useful Improvements in Plows, of which the following is a specification.

This invention relates toplows; and the object in view is to provide in connection with the frame of a wheeled plow or analogous machine a series of orbitally-moving shovels carried by similarly-movable standards on which the shovels are mounted so as to 0scillate, the shovels and standards being provided with means whereby the shovels are adapted to be automatically feathered or movement, thus enabling the shovels to scoop up the earth and turn the same over upon the hills between the furrows formed by the shovels.

A further object of the invention is to provide a wheeled plow having novel steering mechanism and provided with means for connection with a traction-engine, whereby the wheeled plow is automatically steered by the traction-engine during the progress of both machines across the field. The construction of the plow and steering mechanism therefor admits of the plow beingeither coupled to 'al traction-engine or having a suit-able engine or motor mounted upon the frame of the plow for both propelling the plow along the field and imparting movement to the shovels.

It is also an object of this invention to provide in connection with the machine-frame and carrying-wheels novel mechanism for raising and lowering the machine-frame and correspondingly adjusting the throw of the shovels and penetration of the colters.

The construction of the machine has the advantage of enabling furrows or ditches to be formed without leaving a hard and closelypacked surface at the bottom of the furrow or ditch.

The machine, whilespecially adapted for plowing, cultivating, and the like, is also well adapted to the purposes of ditching and grading.

WVith the above and other objects in View, the nature of which will more fully appear hereinafter,tl1o invention consists in the novel Serial No. 64,719. (No model) construction, combination, and arrangement of parts hereinafter fully described, illustrated, and claimed.

In the accompanying drawings, Figure 1 is a side elevation of a wheeled plow construct- Fig.5 is a view of the same, taken at'right angles .to Fig.4. FigrG is a detail cross-sectionf through the lower end of thestandard, showing the shovel and shovel-head and the manner of locking said headtilted laterally during certain portions of their Similar numerals of reference designate corresponding parts in all the figures of the drawings.

Referring to the drawings, the main frame is shown to comprise, essentially, a plurality of longitudinal bars 1, connected by a rear cross-bar 2 and forward cross-bar 3, the outermost longitudinal bars 1 being extended in advance of the cross-bar 3.

V The carrying-wheels 4 are journaled. upon out-turned spindle portions 5 of swivel-posts 6, which pass through bearing-openings 7 in the side-bars l and also through brackets 8,

superimposedupon said sideor longitudinal bars at or-near the opposite-ends thereof, as shown in Figs. 1, 2, and 3. Connected to the llowersidesof .the side bars -1-are pendent brackets'9, which-form additional bearings and supports for the swivel-posts 6. The swivel-posts 6 extend above the upper brackets 8 and are recurved to form eyes or guides 10, after which they are extended downward to form pendent crank-arms 11, the lower extremities of which are turned outward, as shownat 12, and pivotally connected to coupling-bars 13, arranged at opposite sides of the machine-frame, as shown in Fig. 2, both swivel-posts at one side of the machine being connected pivotally to ,the coupling-bar at that side. The said coupling-bars 13 at their forward ends are pivotal1y.- connectedat 14 to a pair of forwardly-converging draft links 15, the forward ends of which are in turn pivotally connected at 16 to a clip 17, adapted to be fastened to the rear end of a tongue or pole 18, connected with a traction-ongine of any description, whether driven by steam, gas, oil, electricity, or any other wellknown motive power. The pole or tongue 18 will be rigidly connected to the carriage of the traction-engine,and therefore when the course of the traction-engine is changed the tongue or pole 18, acting through the medium of the draft-links 15 and coupling-bars 13, will serve to turn the swivelposts 6 and correspondingly turnthe carrying-wheels of the plow, so as to cause the plow to follow the course laid out by the traction-engine.

The plow-frame, including the upper and lower brackets 8 and 9, is mounted so that it may slide up and down upon the swivel posts 6 in order to regulate the depth of penetration of the colters and shovels hereinafter described and which are carried by the frame. In order to efiect this adjustment, I provide a Windlass-shaft 19, which is journaled in one pair of a set of uprights 20, extending upward from the main frame and carrying at their upper ends a superposed rectangular frame comprising the side bars 22, front and rear cross-bars 23 and 24, respectively, and intermediate parallel longitudinal cross-bars 25, the said superposed frame being rigidly connected with the main frame. Mounted fast upon the shaft 19 are tWo sets of windlasses 26 and 27, located, respectively, upon the outside and inside of the posts 20, as shown in Fig. 2. Frame-adjusting cables 28 and 29 are connected at one end to the front and rear portions of the main frame and pass through the guides 10, which,if desired, may-be equipped with antifriction-pulleys, after which the said cables pass under direction-pulleys 29, carried by the upper brackets 8, and are then wound one upon the outer drum 26 and the other upon the inner drum or Windlass 27, as clearly illustrated in Fig. 2. The Windlass-shaft 19 is extended at one end and provided with a squared terminal portion 30 to receive a detachable handcrank, (not shown,) whereby the shaft 19 may be turned for winding and unwinding the cables 28, which will have the efiect of bodily raising or lowering the frame of the machine relatively to the carrying-wheels and correspondingly adjusting the colters and shovels.-

The colters 31 are of the ordinary revolving-disk type and are arranged in a transverse series beneath the main frame, being journaled upon a shaft 32, carried by pendent arms or forks 33, connected at their upper ends to a common colter-bar 34, which is adjustable up and down with respect to the main frame, being for that purpose provided with upwardly-extending studs 35, which pass through hearings in the side bars of the main frame and are held by means of set-screws 36, which pass through the side bars 1 of the main frame and bind against the studs 35 in a manner which will be readily understood.

Journaled in hearings on the superposed frame 22 is an upper crank-shaft 37, provided with a plurality of cranks 38, radiating therefrom in different directions, four of said cranks being shown as arranged at a quarter of a revolution from each other, so that they will act successively on the shovel-standards connected therewith. J ournaled in bearings on the main frame is a lower crank-shaft 39, provided with a plurality of cranks 40, corresponding in number with those of the upper crank-shaft and located one-quarter of a revolution apart. In connection with said crankshafts I employ standards 41, corresponding in number to the number of cranks on said shafts, each of said standards being provided with a fixed bearing 42 to receive one of the cranks of the lower shaft 39, while the upper portion of the standard is longitudinally slotted, as at 43, to slide upon one of the cranks of the upper crank-shaft 37. The two crankshafts are geared together by means of spur gear-wheels 44 and 45, mounted, respectively, on the lower and upper crank-shafts, as shown in Fig. 1, while one of said crank-shafts, preferably the upper one, is provided with a sprocket-wheel 46, which receives a drivechain 47, extending to a' driven sprocketwheel on the traction-engine or connected with the engine mounted upon the plowframe, where the latter arrangement is preferred. Each standard 41 has its lower end reduced to form a crosssectionally round shank 48, and upon said shank is journaled the head 49 of one of the shovels 50, said shovel being of the spade type, as clearly illustrated in Figs. 4, 5, and 6, to which attention is now directed. The head 49 is provided with a segmental slot 51, operating about a stop in the form of a pin 52, projecting laterally from the shank 48, the said pin serving in connection with the ends of the segmental slot 51 to limit the oscillatory movements of the shovel. The head 49 is provided at the top with an enlarged flange 53, provided with a tangentially-projecting portion 54 and adjacent thereto with a locking-notch 55, into which a spring-dog 56 is adapted to snap for locking the shovel-head and preventing the same from turning at an inopportune time. The dog 56 is in the form of a flat spring, one end of which is secured, as shown at 57, to the standard 41, while the free lower end thereof is adapted to be engaged with and disengaged from the notch 55. The periphery or outer edge of the flange 53 is for the greater part concentric with the shank 48,- as shown at 58 in Fig. 6, so that the spring-dog 56 will ride thereon as the shovel is turned. In order tounlock the shovel-head and disengage the dog 56, I provide a trip 59 in the form of a rock-shaft jourualed in suitable bearings 60 on the stand ard 41 and having one extremity bent inward, as at 61, to lie beneath the free end of the spring-dog 56, while the opposite end of said trip is bent outward, as shown at 62, to come in contact with one of the side portions of one of the cranks 40 on the lower crank IIO through an orbital path and shaft at a certain point in the revolution of said shaft for trip 59 and forcing the spring of engagement with the shovel-head, which is then immediately returned to its operative position by means of a coiled spring 63, disposed around the shank 48, above the shovel-head, and having one end connected fixedly to the shovel-head, while its opposite end is fastened to the standard 41, as shown at 64. The tension of the spring 63 is exerted to hold the shovel in its operative position, as illustrated in Fig. 1, and to return the shovel to its operative position after it has been tilted or rocked laterally to an edgewise position, as shown in Fig. i o

the drawings. In order to swing the shovels to an edgewise position relatively to the direction of movement of the machine, I provide a series of pendent shovel-deflectors (36, mounted near the rear of the machine-frame and extending downward at an inclination, as shown, so that as the shovels move upward, carrying the soil thereon, the projecting portion 5a of the shovel-head strikes against the deflector 6G and overcomes the tension of the spring 63, rocking the shovel upon the shank 48 until the spring-dog o6 snaps into the notch 55 and locks the shovel in the position illustrated in Fig. l. As the shovel moves upward along the deflector 66 the latter acts as a scraper to remove surplus soil from the shovel.

From the foregoing seen that the shovels to the operative parts of the mechanism of the plow. I do not, therefore, desire to be limited to the details of construction and arrangement hereinabove set forth, and accordingly reserve the right to change, modify, or vary the construction within the scope of this invention.

In operating upon ground which contains a considerable amount of moisture a fork embodying tines may be substituted for the spade illustrated and described hereinabove. It is also within the spirit of this invention to provide means-for example, a dog--for the purpose of holding the shovel rigidly instead of yieldingly. The deflectors for turning the shovels or forks are preferably made adjustable with relation to the machine-frame, so the shovels and oscillate Having thus is claimed as new, and desired to' be secured by Letters Patent, is-

1. Awheeled plow,comprisingcrank-shafts, a standard loosely mounted on the crankshafts and provided with a reduced shank at its lower end, a shovel provided with a head and mounted so as to turn on the lower end of the standard, means for limiting the turning movement of the shovel in both directions, a coil-spring encircling the standard for holding the shovel in its operative position, means for swinging or tilting the shovel, and a spring-dog for locking the shovel in its inoperative position.

2. In a wheeled plow, the combination with the main frame and carrying-wheels, of a plurality of crank-shafts mounted one above the other and adapted to rotate in opposite directions, a standard journaled on the lower crank-shaft and provided in its upper portion with a longitudinal slot in which is received the upper crank-shaft, and a spring-actuated oscillatory shovel mounted on the lower end of the standard.

3. In a wheeled plow, the combination with the main frame and carryingwheels, of a plurality of crank-shafts, a series of standards actuated thereby and provided with reduced shanks at their lower ends, a shovel provided with a head journaled on the lower end of each standard, means for limiting the turning movement of the shovel in both directions, a coiled spring encircling each standard for holding the shovel in its operative position, means on the frame for swinging or tilting the shovels, and spring-dogs for locking each shovel in its inoperative position.

4:. In a wheeled plow, the combination with the main frame and carrying-wheels, of a plurality of crank-shafts, a series of standards actuated thereby,

description it will be are caused to move that after penetrating the soil and leaving the ground they are oscillated or swunglaterally, so as to turn the soil and deposit the same at the side of the furrow, the shovels being looked after being turned, so as to prevent the carrying of soil upward, any surplus soil being removed from the shovels by means of the combined shovel deflectors and scrapers 66. The cranks of the upper and lower crank-shafts are so disposed relatively to each other that the standard of each shovel is tipped forward and rearward, so as to cause the blade of the shovel to enter and operate upon the soil in much the same manner as a spade is operated by hand. The shovel is not dragged along the bottom of the furrow, and therefore the bottom of the furrow is left soft and in excellent condition for planting. It will be seen that I have provided simple and convenient means for bodily raising and lowering the machine-frame with respect to the carrying-wheels and that by the construction of frame-adjusting mechanism maybe equally raised or lowered at all points.

It is within the scope of this invention to a shovel provided with a drive the wheeled plow either by an auxiliary head rotatable axially on the lower end of each traction-engine or else to mount an engine of standard, a flange on said head having aproany ordinary or preferred type upon the frame l of the plow itself for the purpose of driving i the plow along the field and imparting motion jectin g portion deflectin g devices on the main frame adapted to cooperate with said projectportion of the flanges for turning the ing described the invention, what ICC shovels, and retracting-springs on the shovels for returning the shovels to their operative positions.

5. In a wheeled plow, the combination with the main frame and carrying-wheels, of a plurality 0f crank-shafts, a series of standards actuated thereby, shovels mounted to turn axially on the lower rality of crank-shafts, a series of actuated thereby, a shovel havinga head journaled axially upon the lower end of each 7. In a wheeled plow, the combination with plurality of crank-shafts, a series of standards actuated thereby, ashovel havinga head journaled axially on the lower end of each standard, springs foryieldingly holding the shovels at one limit of their throw, means on the each flange having a looking-notch, a spring-dog on each of said standards to engage said locking-notch at one limit tripping devices for said dogs,

limit of its throw, and means on the frame for turning said shovel.

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE E. BART'II. Witnesses:

N. M. WATSON, F. A. GRADY.

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