US427854A - Disk harrow - Google Patents

Description

3 Sheets-Sheet 1. A. J. GLASS. DISK HARROW.

(No Model.)

Patented May113, 1890.

(No Model.)

3 Sheets-Sheet 3. A. J. GLASS. DISK HARROW.

No. 427,854. Patented May 13, 1890.

' Hforneys.

UNITED STATES PATENT ()FFICE.

ALBERT J. GLASS, OF BATAVIA, NEIV YORK, ASSIGNOR OF ONE-HALF TO SHELDON J. GLASS, OF CHICAGO, ILLINOIS.

DISK HARROW.

SPECIFICATION forming part Of Letters Patent No. 427,854, dated May 13, 1890. Application filed December 13,1889. Serial No. 333,647. (No model.)

To all whom it may concern.-

Be it known that I, ALBERT J. GLASS, a citizen of the United States, residing at 13atavia, in the county of Genesee and State of New York, have invented new and useful Improvements in Disk Harrows, of which the following is a specification.

This invention relates to that class of disk harrows in which the disk-gangs are adj ustably connected with the main frame, and has for its objects to improve the devices whereby the gangs are pivoted to the main frame,

also the devices whereby the inner ends ofthe gangs are connected together, and to provide simple means for shifting the gangs by the draft of the horses.

My invent-ion consists of the improvements which will be hereinafter more fully set forth, and pointed out; in the claims.

In the accompanying drawings, consisting of three sheets, Figure 1 is a top plan view of a harrow provided with my improvements. Fig. 2 is a longitudinal sectional elevation in line 00 0c, Fig.1. Fig.8 is a similar view in line y y, Fig. 1. Fig. 4. is a cross-section in line :10 00, Fig, 2, showing the draft-rod guides and draft-rods. Fig. 5 is a fragmentary horizontal section of the central portion of the harrow and connecting parts, the section being taken below the main frame and gangplanks. Fig. 6 is a fragmentary cross-section showing the means for connecting the adjacent ends of the disk-gangs. Fig. 7 is a top plan View of the harrow, showing the diskgangs arranged at an angle to the line of draft. Fig. Sis a longitudinal elevation of the front portion of the draft-rods and connecting parts, showing a modified construction of the stop device.

Like letters of reference refer to like parts in the several figures.

A represents the main frame, which consists of a draft-pole A, a cross-bar A and diagonal braces A I A represents a backwardly-inclined seatsupport secured to the main frame.

B B represent the harroWdisks arrangedin two transverse gangs in rear of the crossbar A and mounted upon transverse shafts C O. The latter are journaled, by means of cylindrical sleeves C, in bearings or hang ers C 0 secured to the lower sides of the gang-planks D D. The shafts O are provided at their inner ends with beveled heads d, seated in the innermost sleeves O, and at their outer ends with screw-shanks, to which screw-nuts (1' are applied, which bear against the outermost disks, and whereby the disks, except the innerlnost d sk of each gang, are clamped between the sleeves 3, while the innermost or two adjacent disks B B of the opposing gangs are secured to the ends of the innermost sleeves O.

F F represent the longitudinal rods by which the disk-gangs are movably connected with the main frame. These rods are bent or crank-shaped and journaled with their horizontal front portions or pivots F, which are arranged longitudinally in openings formed in the upper portions of vertical plates f f secured to the front and rear sides of the cross-bar A The rods F extend obliquely downward from their pivots, and their horizontal rear ends are arranged between jaws f formed on the front sides of the hangers near the lower ends thereof, and are attached to the latter by vertical pivot-boltsf which pass through eyes f, formed on the rear ends of the rods F F. The openings in these eyes are made flaring upwardly and downwardly to permit of the requisite play of the pivot-bolts in the eyes, so as to permit the gangs to follow the surface of the ground, and to allow the angle of the gangs to be adjusted without causing the pivots to bind in the eye. The front ends of the rods are provided with screw-nuts fiwhich bear against the front platesf of the crossbar A G G represent two inclined longitudinal braces or stay-bars, which also serve to connect the gang-planks with the cross-bar A and which are arranged over the pivot-rods F. These stay-bars are provided at their lower front ends with vertical eyes g, through which the horizontal front pivots of the rods F pass, and which are arranged in rear of the rear plates f These eyes are prevented from drawing back on the pivots by pins g, which are inserted through the pivots in rear of the eyes. The stay-rods extend'upwardly from these eyes, and are attached to the under sides of the gang-planks by vertical bolts 5 which also serve to hold the front flanges of the standards C to the gang-planks. The fastening-bolt and the pivot boltj of each gang are arranged in a vertical line, so that these two points of connection forman axial line or pivot for the gangs to swing upon in changing the angle of the gangs.

*II II represent draft-rods arranged below the cross-bar A and draft-pole A, and whereby the inner portions of the disk-gangs are attached to the main frame. The rear ends of these rods are arranged between jaws 71, on the front sides of the inner hangers C and are attached to the latter by vertical bolts 7t. The draft-rods 11 II converge forwardly and terminate in parallel front portions hfl'as represented in Fig. 5. These parallel portions are arranged in line with the pole A, and are connected by transverse bolts 71. and sleeves 71?, which latter are arranged between the bars ll II, so as to leave a space or slot 7r between the same.

I represents a stirrup secured to the lower side of the draft-pole A and provided with a rectangular opening, in which the parallel front portions of the rods II 11 are supported and guided.

.T represents a vertical hand-lever pivoted in a mortise of the draft-pole A and having its lower end arranged in the slot or space It between the parallel front portions of the draft-rods. The hand-lever is disconnected from the draft-rods, so that it is free to move longitudinally with its lower end in the opening between the front stop and the guide I, while the draft-rods are equally free to move longitudinally independently of the handlever. This permits the hand-lever to be set to the desired position for changing the angle of the gangs without moving the gangs, and allows the gangs to be shifted by the draft of the horses. When it is desired to shift the inner portions of the disk-gangs backwardly, the upper end of the hand lever is swung forwardly, and the lever is locked in position by any suitable device. As shown in the drawings, a locking-segment j, secured to the top of the pole A, is provided for this purpose. When the team is now started, the outerportions of the gangs remain at rest until the frame A has been moved forward sufficient] y to cause the lower end of the hand-lever to strike against the front sleeves or steps 71, when the inner ends of the gangs will also move with the main frame. \Vhen it is desired to shift the inner ends of the gangs forwardly, the team is backed until the cross pin of the rear stop or sleeve 7L strikes against the stirrup I. The forward movement of the draftq'ods and of the inner ends of the disk-gangs is limited by the rear bolt striking against the stirrup I, as shown in. Figs. L and 5. When the cross-pin so bears against the stirrup or guide, the disks are arranged. in line, and can be locked in this position by swinging the upper end of the hand-lever backward until its lower end engages against the front stop or sleeve 715, as shown in Fig. 2, and locking the lever .in this position. The disks are so locked both against forward and back ward movement.

In my improved harrow the disk-gangs are shifted by causing the draft-animals to move forward or backward, and the driver is relieved from the necessity of drawing the gangs bodily forward or pressing them backward by hand, whereby the operation of adjusting the gangs is rendered very easy and convenient. The hand-lever serves as a movable stop to limit the backward movement. of the disk-gangs. If desired, however, thehandlever may be omitted and the backward move ment of the disk-gangs be limited by inserting a transverse pin in one of a series of openings 7.;, formed in the parallel portions of the draft-rods in front of the stirrup I, as represented in Fig. 8. This pin strikes against the front side of the stirrup as the main frame moves forwardly and limits the back ward movement of the disk-gangs.

L represents a knuckle-bar arranged between the two innermost disks ll J3, and whereby the two gangs are connected. The knuckle-bar L consists of a cylindrical shank ,1, provided at one end with a spheroidal knuckle Z, and of a sleeve which receives the shank Z and carries a spheroidal knuckle Z. The shank and sleeve are secured together by a pin Z. The knuckles are seated in divided sockets formed in enlargements on. of the innermost sleeves C and in caps M, bolted to the flanges of theseenlargements. The knuckle-bar holds the inner ends of the diskgangs against lateral displacement both inwardly and outwardly and relieves the con nectin g crank-rods and stayb ars from lateral strains. The knuckle bar is disconnected from the draft-frame, and can therefore fol low the undulating movement of the diskgangs freely, thereby enabling the gangs to adapt themselves freely to the irregularities of the ground.

In shifting the inner ends of the gangs backwardly from the position represented in Fig. 1, in which the gangs are in line with each other, in order to set the gangs at an angle to the line of draft, as represented in Fig. 7, the gangs turn on the vertical pivots h. This rearward turning movement of the gangs would in the absence of the kuckle-bar increase the distance between the inner ends of the gan; but such a separation of the gangs rendered impossible by the knuckle-bar, which ties the gangs together. In order to enable the gangs to turn, and at the same time remain connected by the knuckle-bar, the pivots 71. must move inwardly or toward each other when the inner ends of the gangs are moved backwardly and outwardly or from each other when the inner ends of the gangs are moved forwardly. This lateral movement of the pivots is provided for by the bent or crank form of the connecting-rods F, which causes the rear ends of the rods to move laterally when the longitudinal pivots at the front ends of the rods are turned in their bearingsQ The innermost disks B are secured to the innermost sleeves by bolts 02, which pass also through the caps M and secure these disks and the caps to the flanges of the sleeve enlargements. The knuckle-bar is preferably made in two detachable section s, as described, so that the sections can be disconnected from each other for the purpose of disconnecting the gangs without removing the knuckles from their sockets, thereby enabling the gangs to be packed closely for shipping.

I claim as my invention- 1. The combination, with the draft-frame and the disk-gangs, of connecting-rods having their front ends connected with the draftframe by longitudinal pivots and their rear ends to the disk-gangs by vertical pivots, and braces provided at their front ends with eyes, through which said longitudinal pivots pass and their rear ends with vertical fasteningbolts arranged in line with said vertical pivots, substantially as set forth.

2. The combination, with the draft-frame and the disk-gangs, of bent or cranked connecting-rods provided at their front ends with longitudinal pivots journaled on the draft-frame and having their rear ends connected with the gangs, whereby the gangs are enabled to move laterally in adjusting their position, substantially as set forth.

The combination, with the draft-frame and the disk-gangs, of a connecting device whereby the inner ends of the gangs are attached to each other, and connecting-rods provided at their front ends with longitudinal pivots journaled on the draft-frame and having at their rear ends a connection with the gangs which is capable of moving laterally as the position of the gangs is adjusted, substantially as set forth.

4. The combination, with the draft-frame and the disk-gangs, of a connecting device whereby the inner ends of the gangs are attached to each other, and bent or cranked connecting-rods provided at their front ends with longitudinal pivots journaled on the and the disk-gangs pivoted thereto, of a free knuckle-bar disconnected from the draftframe and provided at its ends with spherical knuckles which are seated in sockets in the disk-gangs, said sockets embracing the outer and inner sides of each knuckle, whereby the knuckles are retained in the sockets and enabled to hold the gangs both against inward and outward thrusts, substantially as set forth.

6. The combination, with the disk-gangs provided in their inner ends with sockets, of a connecting knuckle-bar composed of ashank provided with a knuckle, a sleeve also provided with a knuckle and receiving said shank, and a fastening whereby the shank and sleeve are detachably secured together, substantially as set forth.

7. The combination, with adraft-frame provided with a guide secured rigidly thereto and diskgangs pivoted to the draft-frame and capable of angular adjustment, of draft-rods attached to the disk-gangs and capable of longitudinal movement on said guide, an adjust-- ing-lever mounted on the draft-frame, and a stop secured to the draft-rods and adapted to come in contact with said adjusting-lever, substantially as set forth.

8. The combination, with the draft-frame provided with a guide secured rigidly thereto and diskgan gs pivoted to the draft-frame and capable of angular adjustment, of draft-rods attached to the disk-gangs and capable of longitudinal movement on said guide, a stop secured to the draft-rods in rear of said guide, whereby the forward movement of the draftrods is limited, an adj usting -lever mounted on the draft-frame in front of said guide, and a stop secured to the draft-rod in front of the adjusting-lever, whereby the rearward movement of the draft-rod is limited, substantially as set forth.

Witness my hand this 14th day of November, 1889.

ALBERT J. GLASS.

Witnesses:

GEORGE 0. VALZ, J 0s. J. GLASS.

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