US1253175A - Disk harrow. - Google Patents

Description

E. F. HIGH.

DISK HARROW.

APPLICATION FILED SEPT. 22. 191 z.

Patented J an. 8, 1918.

3 SHEETS-SHEET E. I w.

INVENTOR WITNESSES ATTo R N EY DISK HARROW.

APPLICATION FILED SEPT. 22. 191 z.

1,253,1L?5O Patented Jan. 8,1918.

3 SHEETSr-SHEET 2.

v A Eflmssfffi ATTORNEY E. F. H-IGH.

DISK HARROW.

APPLICATION FILED SEPT.22. I91? Patented Jan. 8, 1918.

3 SHEETSSHEET 3- WlTNESSES ATTORNEY earn eras earns icicle.

ERNEST r. HIGH, or ABBINGTON, KAivsAs.

1,253,175. ivi

1 '0 all whom. it may concern Be it known that I, Eimns'r F. HIGH, a citizen of the United States, residing at Arrington, in the county of Atchison and State of Kansas, have invented new and useful Improvements in Disk-Harrows, of which the following is a specification.

This invention relates todiskimplements for agricultural use and it has for its object to produce a simple device of this kind which will possess superior advantages in point of simplicity,durability and general efiiciency.

A further object of the invention is to simplify and improve the construction and manner of mounting the disk carrying shaft, and the manner of mounting the disks thereon.

A further object of the invention is to simplify and improve the frame construction of the machine and the manner of supporting the same and of regulating the ad justlnent of the disk carrying frame.

lVith these and other ends in view which will readily appear as the nature of the invention is better understood, the same consists in the improved construction and novel arrangement and combination of parts which will be hereinafter fully described and particularly pointed out in the claims.

In the accompanying drawings has been illustrated a simple and preferred form of the invention, it being, however, understood that no limitation is necessarily made to the precise structural details therein eX- hibited, but that changes, alterations and modifications within the scopeof the claims may be resorted to when desired.

In the drawings,

Figure 1 is a top plan view of the machine constructed in accordance with the invention.

Fig. 2 is a rear elevation of the same.

Fig. 3 is a plan view of the main shaft, the disks having been detached, with the clamp members and the draft bar connected therewith being shown.

Fig. 4 is an end elevation of the parts seen in Fig. 3. p N

Fig. 5 is a view in end elevation of the complete machine. v v

Fig. 6 is a vertical sectional detailview taken on the line 66 in Fig. 1, through one end of the machine. v p I Fig. 7 isa verticalsectional view taken on the line 77 in Fig. 2.

Specification of Letters Patent.

DISK HABROW.

Patented an. 8, 191%.

Application and September 22, 1917. Serial no. 192,7i9.

Fig. 8 is a sectional detail view taken on the line 88 in Fig. 1 through one of the disks and related parts.

Fig. 9 is a sectional detail view taken on the line 9-9 in Fig. 8.

. Corresponding,parts in the several figures of the drawing are denoted by like characters of reference.

The frame of the improved machine includes the main disk carrying shaft A which is provided intermediate the ends thereof with numerous rectangular bends producing journal portions or spindles 15 and intermediate offsets 16, the spindles 15 being all disposed in an approximately horizontal plane and in. parallel relation to each other while the offsets 16 are likewise disposed in an approximately horizontal plane and in parallel relation toeach other but at substantially right angles to the spindles with which the said offsets alternate. At each end of the shaft is produced a crank 17 having a wrist pin 18, each wrist pin being engaged with a horizontal socket 19 in an upright or standard 20, the wrist pins being secured in the respective sockets by means of set screws 21 or by fastening means of any description. Each standard 20 has a vertical bore 22 for the passage of a shaft 23 terminating at its lower end in an outwardly extending spindle, one of said spindles being disposed at an acute angle and. the other at an obtuse angle with respect to its shaft. Each of the spindles carries a ground wheel 25, and it will be seen that said ground wheels, owing to the arrangement of the spindles, will be tiltingly disposed with respect to the frame of the machine, the two wheels being, however, disposed in parallel planes as will be best seen by reference to Fig. 2 of the drawings.

The shafts 23are mounted for rotation and also for slidable movement in the bores 22of the respective standards 20 so that provision may be made for the vertical adjustment with respect to the. ground, wheels of thesaid standards 20 which constitute the end members of the frame of the machine. The said standards are connected together partly by means of the shaft A the cranks of which are adjustably secured in the sockets 19 of the standards, said standards are also connected together means of a top cross bar 26 which is providedat the ends thereof with keepers 2' 7 in whlch the standards are secured by means of bolts 28.

For the purpose of efl'ecting vertical adjustment of the frame structure with. respect to the shafts 23 there is pivoted on each of said shafts a segment rack 29, each of said segment racks having cars 30 engaging the shaft. Fulcrumed on each rack 29 is a hand lever 31 having a stop member 32 that engages the rack, said hand levers extending in the direction of the central part of the machine frame where a drive1"s-s eat 33 is provided. Each hand lever31 is pivotally connected with one end of a link 34 the other end of which is connected with one end of the top cross bar 26 beyond the keeper 27 It will be readily seen that by manipulating the hand levers the standards may be raised or lowered relatively to the shafts 23 and also relatively to the ground engaging wheels which are mounted on the spindles of said shafts. Pivoted rack segments are held against longitudinal displacementon the shafts 23 by means of sleeves 35 that are fixed on said shafts, one such sleeve being mounted intermediate the cars of each rack segment. Each of the sleeves has a radially extending arm 36 the particular use of which will be presently shown. Firmly secured on some of the offsets 16 of the main shaft A are angular clamps 37, each of said clamps being connected with the rearward end of a brace member 38. The several brace members 38 are securely connected with an angle bar 39 which constitutes a frame bar of the machine and with which the rearward end of the tongue 40 is connected. The several brace bars 38 are provided with obliquely disposed forwardly extending portions 41 the forward ends of which are securely connected with the sides of the tongue thereby forming a strong and durable frame structure. Other braces 42- are connected at their forward ends with the sides of the tongue, the rearward ends of said braces 42 having threaded portions that extend through apertures 43 in the radial arms 36 where said threaded portions are secured by means of adjusting nuts 44. It will be understood from the foregoing description that the wheel carrying shafts 23 are free to rotate in the bores of the standards 20. It will also be understood that the sleeves 35 having the radialarms 36 are fixed on the wheel carrying shafts. It follows that by engagement of the threaded portions of the braces 42 with the arms 86, the wheel carrying shafts will be held securely against rotation in the bores of the respective standards, and it will also be understood that by proper manipulation and adjustment of the nuts 44: rotary adjustment of the wheel carrying shafts may be effected, thereby enabling the wheels to be faced in the desired direction. It will also be seen that such adjustment may be effected Without interfering with the ability of the standards to'be adjusted vertically with respect to the wheel carrying shafts.

' The tongue of thermachine has been shown as being equipped with a draft appliance 45 and the forward end of said tongue may, when desired, be supported by a ground engaging wheel 46 or by a tongue truck ofany suitable and well known construction.

The main shaft A of the machine may be made of aproper length to carry any desired number of disks, by simply providing the requisite number of journal portions or spindles 15 andoifsets 16 alternating therewith. It is to be moreover understood that the disks carried by the shaft may be of any desired kind or type as well as of any desired diameter. It may furthermore be stated while the spindles or journal portions have been heretofore described as being disposed in'an approximately horizontal plane, no limitation is thereby meant or implied, since by slightly tilting the plane of the said spindles the disks carried thereon maybe located in any advantageously tilted position. Each of the disks, which are individually designated by l? is mounted between and carried by two box members one of which, B, is fitted and applied to the convex side of the disk while the other box member C is fitted and applied to the concave side of the disk. Each of the box members is moreover composed of two half boxes 48, 48 and 49, 49 which combine to afford bearings for the spindle or journal portion of the shaft on which the disk is mounted. The said half boXes are moreover provided with cars 50 for the passage of bolts 51 that extend transversely through the disk, thereby holding the box members securely on the disk in spindle engaging position. The boxes or bearing members are to be provided wherever necessary with lubricating openings indicated at 52, said openings being preferably provided with screw plugs 53. It will be seen that in the manner just described the disks may be very effectively mounted for rotation on the spindles or journal portions of the shaft, and ma manner that will permit any one of the disks to be readily detached, when desired, for repairs or other reasons, it being obvious that when desired the disks may be omitted from some of the journal portions or spindles of the shaft. It will also be seen, particularly by reference to Fig. 2 of the drawings, that the slant or inclination of the disks is opposed to that of the ground wheels 25, thereby enabling the latter to resist the side strain or draft caused-by the disks when the machine is in operation.

Bolted or otherwise secured on the top crossbar 26 are a plurality of disk cleaners 5 L, one such cleaner being preferably ar ranged to engage the concave face of each disk for the purpose of freeing the latter from soil and clay adhering thereto and thus facilitating the operation of the machine.

From the foregoing description taken in connection with the drawings annexed, the operation and advantages of this invention will be readily understood by those skilled in the art to which it appertains, By loosening the set screws 21 the disk carrying shaft may be swung or moved about the axes of the wrist members 18 extending from the cranks 17 of the shaft, thereby varying the tilt or inclination of the journal portions 15 of the shaft, and consequently varying the tilt or inclination of the disks. By manipulating the hand levers 31 the entire frame structure may be raised or lowered with respect to the ground wheels, thereby gaging the extent to which the disks will enter into the ground when the machine is in operation, and also enabling the disks to be supported a sufficient distance above the ground to enable the machine to be conveniently transported. By proper manipulation and adj uslment of the nuts if on the brace memhers 42 the wheel carrying shafts may be rocked about their vertical axes, and the wheels may thus be presented in a position best calculated to resist the side strain caused by the disks when engaging the ground. 1V ith this machine, at a single through, the soil will be turned without leaving alternate ridges and furrows; in other words, it will be left in a smooth, level and workable condition which with the majority of disk implements now in use is attained only after several operations, it being particularly observed that by this machine the soil is turned only once and left in proper condition to form a good seed bed. The general construction of the machine is simple and inexpensive and the operation thereof is easy and effective.

Having thus described the invention, what is claimed as new is:

1. In a machine of the class described, a disk carrying shaft having alternate spindles and offsets and terminal cranks provided with wrist pins, standards having sockets wherein the wrist pins are adjustably secured, and a top cross bar having keepers wherein the standards are secured, in combination with vertical shafts rotatably and slidably engaging the standards, ground wheels carried by the shafts, and means for effecting relative vertical adjustment of the shafts and standards.

2. In a machine of the class described, a shaft having alternate angularly disposed spindles and offsets and terminal cranks provided with wrist pins, disks journaled on the spindles, clamps secured on some of the offsets, a draft bar, braces connecting the draft bar with the clamps, a tongue connected with the draft bar and with the braces, standards having sockets in which the wrist pins of the wheel carrying shaft are adjustabl y secured, said standards having vertical bores, shafts engaging said bores and having angular-1y disposed spindles, one of said spindles being at an obtuse angle and the other at an acute angle with respect to its shaft, and ground wheels carried by said spindles, and said wheel's being disposed in substantially par allel planes and tilted in opposition to the disks carried by the shaft.

In a machine of the class described, a shaft having alternate angularly disposed spindles and offsets and terminal cranks pro vided with wrist pins, disks journaled on the spindles, clamps secured on some of the offsets, a draft bar, braces connecting the draft bar with the clamps, a tongue connected with the draft bar and with the braces, standards having sockets in which the wrist pins of the wheel carrying shaft are adjustably secured, said standards having vertical bores, shafts engaging said bores and having angularly disposed spindles, one of said spindles being at an obtuse z ngle and the other at an acute angle with respect to its shaft, and ground wheels carried by said spindles, said wheels being disposed in substantially parallel planes and tilted in opposition to the disks carried by the shaft, in combination with means for effecting relative vertical adjustment of the standards and the wheel carrying shafts.

f. In a machine of the class described, a shaft having alternate angularly disposed spindles and offsets and terminal cranks provided with wrist pins, disks journaled on the spindles, clamps secured on some of the offsets, a draft bar, braces connecting the draft bar with the clamps, a tongue connected with the draft bar and with the braces, standards havin sockets in which the wrist pins of the wheel carrying shaft are adjust-ably secured, said standards having vertical bores, shafts engaging said bores and having angularly disposed spindles, one of said spindles being at an obtuse angle and the other at an acute angle with respect to its shaft, and ground wheels carried by said spindles, said wheels being disposed in substantially parallel planes and tilted in opposition to the disks carried by the shaft, in combination with means for effecting relative vertical adjustment of the standards and the wheel carrying shafts; said shafts being orovided with fixed sleeves havin rae l a dial arms; and braces having threaded portions extending through said arms and ad justing nuts whereby the wheel carrying shafts may be given rotary adjustment about the respective axes.

5. In a machine of the class described, a frame structure including a disk carrying shaft, a draft bar, a tongue connected therewith, clamp nipples connected with the disk carrying shaft, braces connecting the draft bar With the tongue and also with the clamp members, standards whereby the disk carrying shaft is adju'stably supported, and a cross bar having keepers engaging the standards; ground Wheel carrying shafts extending vertically through the standards, means for effecting relative vertical adjustment of the ground Wheel carrying shafts and the standards, said means including segment 10 racks having ears pivotally engaging the respective shafts, sleeves fixed on the shafts between the ears of the rack bars and having radial arms, braces secured at one end to the tongue and provided at their other ends With threaded portions extending through the ra dial arms, and nuts engagin said threaded portions to effect rocking ad ustment of the ground Wheel carrying shafts.

In testimony whereof I afiix my si nature.

ERNEST F. 7 GH.

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

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