US1035776A

US1035776A - Disk-supporting arm.

Info

Publication number: US1035776A
Application number: US66807511A
Authority: US
Inventors: Henry Brockmeyer
Original assignee: Individual
Current assignee: Individual
Priority date: 1911-12-27
Filing date: 1911-12-27
Publication date: 1912-08-13
Anticipated expiration: 1929-08-13

Description

H. BROCKMEYER.

DISK SUPPORTING ARM.

APPLICATION FILED 1120.27, 1911.

Pateted Aug. 13, 1912.

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DISK SUPPORTING ARM.

APPLICATION FILED 11111127.1911.

1,035,776, Patented Aug. 13,1912.

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H. BROGKMBYER.

DISK SUPPORTING ARM.

APPLICATION FILED Dnc. 27, 1911.

1,035,776. Patented Aug. 13,1912.

3 SHEETS-SHEET 3.

UNTTED STATES PATENT OFFICE.

HENRY BROCKMEYER, OF IRVING, KANSAS.

DISK-SUPPORTING- ARM.

To all whom t may concern.'

Be it known that I, HENRY Bnookirnrnn, a citizen of the United States, residing at Irving, in the county of Marshall and State of Kansas, have invented new and useful Improvements in Disk-Supporting Arms, of which the following is a specification.

The invention relates to supporting arms, and more particularly to the class of disk supporting arms for cultivators or the like.

The primary object of the invention is the provision of a support-ing arm of this character' in which the disk may be angularly adjusted and the arm removed from the cultivator frame, when desired, the arm being capable of adjustment, and may be securely fastened to such eultivator frame.

Another object of the invention is the provision of an arm of this character in which the cultivator disks may be set level and all have the same angle to the dirt, and also that will permit the setting of the disks to throw dirt away from the growing plants or up to the same, as may be required.

A further object of the invention is the provision of a supporting arm which is simple in construction, and that may be mounted upon varying sized cultivators, without altering the parts thereof or reconstructing the same, the arm being strong, durable, and inexpensive in manufacture.

lith these and other objects in view, the invention consists in the construction, combination and arrangement of parts, as will be hereinafter' more fully described, illustrated in the accompanying drawings, and pointed out in the claims hereunto appended.

In the drawings: Figure 1 is a top plan view of a wheeled cultivator, showing the disk support-ing arm constructed in accordance with the invention applied thereto. Fig. 2 is an enlarged side elevation of one of the disk supporting arms. Fig. 3 is an enlarged vertical longitudinal sectional view through the same. Fig. 4 is an end elevation of the arm with the disk removed. Fig. 5 is a similar view, looking toward the opposite end. Fig. 6 is a plan View of the clutch surface on one section of the arm. Fig. 7 is a similar View of the clutch surface on the other section of the arm. Fig. 8 is a sectional view on the line 8 8 of Fig. 2. Fig. 9 is a side elevation of a slightly modified form of disk supporting arm. Fig. 10 is a vertical longitudinal sectional view through the same. Fig. 11 is a sectional View on the line 11 of Fig. 9. Fig. 12 is a side elevation Specification of Letters Patent.

Application led December 27, 1911.

Patented Aug. 13, 1912.

Serial No. 668,075.

of a further modification of the disk supporting arm. Fig. 13 is a longitudinal sectional view theretln'ough. Fig. 14 is an end elevation of the arm. Fig. 15 is an end elevation of one section of the arm, showing the clutch surface thereon. Fig. 16 is an end elevation of the other section of the arm, showing the clutch surface. Fig. 17 is a sectional view on the line m-:c of Fig. 14. Fig. 18 is an end view of the arm showing the clutch surface thereon. Fig. 19 is a similar view of the companion clutch surface for engagement therewith.

Similar reference characters indicate correspomling parts throughout the several views of the drawings.

Referring to the drawings by numerals, the cultivator comprises a rectangular frame 10, secured at its forward end to a tongue 11, whereby the machine is drawn forwardly, the rear end of the tongue being provided with a right. angular plate 12, to which the rear end of the frame is sccured. Secured to the opposite sides of the frame is a pair of hangers 13 which are provided with bearings 14 for the reception of two

rocking bars

15 and 16, respectively.

Adj ustably secured to the bar 15 is a pair of beams 17, the same carrying the usual shovels 1S. Each of the

bars

15 and 16 is of squared formation in cross section throughout its length, and to the bar 16 is adapted to be connected the disk supporting arm, presently described.

larried by the frame 10 is a substantially U-shaped crank axle 19, on the spindle ends 20 of which are mounted the usual ground wheels 21 for the supporting of the frame and permitting the travel thereof over the ground.

Each of the disk supporting arms comprises a casting forming a limb 22, the same being slightly downwardly arched to give the proper ciilrvature thereto, and formed in the upper edge thereof, intermediate its ends, is a recess 23, the limb 22 being formed with a longitudinal bore 24 intersecting the said recess 23, the said bore at the inner end of the limb 22 opening into a pocket 25, in which is slidably fitted a forked block 26, the same being formed with a stem or rod extension 27 passed through the bore and protruding in the recess 23, the protruded end of the stem or rod extension being provided with a right hand thread 28 which is engaged by a turn-buckle 29. Slidably fitted in the bore opening through the outer end of the limb 22 is a stem or rod extension 30, the inner end of which is provided with a left hand thread 31 engaging the turn buckle 29, which latter is located within the recess 23 in the limb.

Formed on the outer end of the limb concent-rically about the bore therein, is a clutch surface 32 which is designed to engage with a similar clutch surface 33 formed on the inner end of an adjustable sleeve or cap section 34, in which is mounted a slidable forked block 35 formed on the outer end of the stem or rod extension 30, the sleeve or cap 34 being formed with a groove 36, the inner face of which is provided with a plurality of parallel clamping ribs 37, and in this groove 36 is disposed a spool-like turning knuckle 3S,the same being rotatably journaled upon a bolt member 39 engaged in the forked end of the slidable block, the said turning knuckle being formed with a plurality of clamping ribs 40 on its outer surface to engage with the clamping ribs 37 formed in the groove 36, so that the knuckle may be locked against rotation on the bolt member, in a manner presently described.

Fixed medially in the knuckle 3S and projecting outwardly at right angles thereto is a disk supporting spindlel 41, on which is journaled a ground working disk 42 of the usual type, the spindle 41 being provided with an adjustable dirt guard collar 43, as usual. It is evident that the spindle 41 may be angularly adjusted on the turning of the knuckle 38 in the forked block 35 for the proper positioning of the ground working disk 42 journaled upon the spindle.

Fixed in the fork of the slidable block 26 mounted in the inner end of the limb 22 is a clamping block 44, the same being formed in its inner face wit-h a V-shaped notch 45, .and likewise the inner end of the limb 22 is formed with a V-shaped notch 46 registering with the said notch 45, and in these notches is engaged the rocker bar 16 mounted in the hangers depending from the frame of the cultivator. Thus, it will be seen that the disk supporting arm may be readily fastened to the rocker bar on the cultivator frame, the clamping block 44 being secured in the fork of the slidablc bloc-k 26 by means of a detachable bolt member 47 passed through the fork and the said clamping block', as will be obvious.

The adjustable sleeve or cap 34 is cut away at its opposite sides to provide notches 48 which permit the spindle 41 to be swung to either side of the disk supporting arm and at right angles thereto, should it be desired.

For adjustably securing the cap or sleeve 34 to the outer end of the limb 22 and also clamping the latter to the rocker bar 16, it is only necessary to turn the turnbuckle 29 in one direction, which moves the stems or

rod extensions

27 and 30 toward each other, so that the clamping block 44 will bind against the rocker bar 16, and the

clutch surfaces

32 and 33 on the limb 22 and adju-stable cap or sleeve 34, respectively, will lock with each other. Also the knuckle 38 will be moved, so that the clamping ribs 40 thereon will engage the clamping ribs 37 in the groove 36 in the cap or sleeve 34, thus locking the spindle 41 in adjusted position for sustaining the disk 42 journaled upon the spindle 41 in proper angular disposition for the working of the ground on the advancement of the cultivator.

In Figs. 9, 10 and 11, there is shown a slight modification of disk supporting arm, wherein the limb 49 has passed through the longitudinal-bore 50 therein the stems or rods 51 and 52, the inner ends of which are formed with right and left hand threads 53 and 54 which engage in a turn-buckle 55, the stem 51 being formed with a slidable forked block 56 which tits in the pocket 57 in the inner end of the limb 49, in t-he fork of which is detachably fixed a clamping block 58, the latter and the inner end of the limb being notched for receiving the rocker bar 16, whereby the limb may be securely clamped thereto. Near the outer end of the stem or rod 52 are formed opposed fla-t faces 59 which are intersected by an elongated slot 60 provided in the said stem or rod 52, through which is passed a tapering tubular extension 61 formed on one part 62 of a turning knuckle, the other part 63 thereof being provided vwith a tapering bore receiving the said tubular extension 61, the said parts of the turning knuckle being disposed on opposite sides of the attened portion of the stem or rod 52. Passed through the parts '62 and 63 and the tubular extension 61 is a fastening member 64, t-he same engaging -a disk carrying spindle 65 which has its inner end engaged in a loop portion 66 of the said fastener, and carried upon the said spindle is the usual ground working disk 67, the inner end of the spindle 65 being engaged in diametrically opposed notches 68 formed in the part 62, so as to prevent the turning of the spindle relative to the knuckle. Slidably fitted on the stem 52 and disposed at opposite sides of the turning knuckle are

clutch blocks

69 and 70, respectively, the inner or meeting faces of which are formed with alining grooves 71 receiving the turning knuckle, the said grooves being formed with a plurality of clamping ribs 72 which are adapted to engage or lock with similar clamping ribs 73 formed on the outer surfaces of the parts 62 and 63 of the turning knuckle. Detachf ably threaded on the outer end of the stem 52 is a nut 74, against which is engaged the clutch block while the clutch block 69 on its inner face is formed with a clutch surface 75, the latter being adapted for locking engagement with the clutch surface 76 formed on the outer end of the limb 49. Thus it will be seen that the limb may be readily fastened to the rocker bar 16, and also the spindle supporting and ground working disks may be sustained in anglilarly adjusted position, the adjustment thereof being permitted by the turn-buckle, as will be obvious.

In Figs. 12 to 17, there is shown a further modification of the disk supporting arm, comprising a limb 77 which is slightly downwardly arched to give the proper eurvature thereto, and has formed in the upper edge thereof, intermediate its ends, a recess 78, the said limb beingformed with a longitudinal bore 79 intersecting the recess 78, the said bore, at the inner end of the limb, opening into a pocket 80, in which is slidably fitted a forked block, 81, the same being formed with a stem or rod extension 82 passed through the bore and protruding into the recess 78, the protruded end of the stein or rod extension being provided with a right hand thread which is engaged by a turn-buckle 83. Slidably fitted inthe bore 79 opening through the outer end of the limb 77 is a stem or rod extension 84, the inner end of which is provided with a left hand thread engaging the turn-buckle 83, while its outer end is fixed in or integral with a fork 85, the inner portion of which is surrounded by means of a block 86, the inner face thereof being formed with a ratchet surface 87 engaging witha corresponding ratchet surface 88 formed on the outer end of the limb 77, the clutch surfaces being designed to engage with each other for locking the block 86 in adjusted position relative to the limb. Carried by the fork 85 and secured thereto by means of a bolt member 89 is a clamping block 90, the adjacent or meeting faces of the blocks 86 and 90 being provided with alining ratchet faced grooves 91 receivino a spool-like turning knuckle 92, the same eing formed with a ratchet surface 93 adapted for engagement with the ratchet surface 91 of the grooves in the blocks 86 and 90 for locking the turning knuckle in adjusted position, this being accomplished by turning the buckle 83 for the drawing of the rods or stem extensions 82 and 84 toward each other. The turning knuckle 92 is formed with a longitudinal bore 94, in which is fitted an eye bolt 95, the eye 96 of which receives the disk spindle 97, the stem being provided at its threaded end with a nut 98 for the tightening of the bolt in the turning knuckle, whereby the spindle 97 will be held fast therewith. One end of the spoollike knuckle is provided with a channel 99 receiving the spindle 97, so as to prevent the turning thereof relative to the knuckle when said spindle is fastened thereto. In the forked block 80 is xed a clamping block 100, the same being formed in its inner face with a V-shaped notch 101, and likewise the inner end of the limb 77 is formed with a V-shaped notch 102 registering with the notch 101, and in these notches is engaged the rocking bar 16 mounted in the hangers depending from the frame of the cultivator. Thus it will be seen that the supporting arm may be fastened to the rocking bar on the cultivator frame.

From the foregoing, taken in connection with the accompanying drawings, it is thought that the construction and operation of the invention will be readily understood, without requiring a more extended explanation.

That is claimed is:

1. The combination with a cultivator having a rocker bar, of a plurality of disk supporting arms, each comprising a limb having a recess intermediate its ends, stems slidable in the limb and intersecting the recess and having forked extremities, a turn buckle adjustably engaging the stems for connecting the same, a disk journal having a turning knuckle mounted in one of the forked extremities, a disk rotatable upon said journal, and clamping means carried by the other forked extremity and engaging the rocker bar.

2. The combination with a cultivator having a rocker bar, of a plurality of disk supporting arms, each comprising a limb having a recess intermediate its ends, stems slidable in the limb and intersecting the recess and having forked extremities, a turn buckle adjustably engaging the stems forconnecting the same, a disk journal having a turning knuckle mounted in one of the forked extremities, a disk rotatable upon said journal, and clamping means carried by the other forked extremity and engaging the rocker bar, an adjustable cap carried by one of the stems and having means engageable with the limb at its outer end for locking said cap against rotation, and coperative locking projections formed on the cap and the turning knuckle to prevent displacement of the latter.

In testimony whereof I aliix my signature in presence of two Witnesses.

HENRY BROCKMEYER.

Witnesses:

DANIEL I-I. ARMSTRONG, ANDREW J. Zemin.

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