US1213281A - Disk harrow. - Google Patents

Description

C. S. SHARP.

DISK HARROW.

APPLlcATloN msu Jun: 1o. 1912.

Patented Jan. 23,1917.

5 SHEETS-SHEET I.

WITNESS/ast- C. S. SHARP.

DISK HARROW.

APPLxcATmN FILED JUNE 1o. 1912.

Patented Jan. 23, 1917.

5 SHEETS-SHEET 2.

[N VEN TOR.

WITNESSES:

C. S. SHARP.

DISK HARROW.

APPLICATION man JUNE so. 1912.

Patented Jan. 23, 1917.

5 SHEETS-SHEET 3.

C. S. SHARP.

DISK HARROW.

APPLICATION FILED IUNE I0. 1912.

l ,21 3 ,28 1 Patented Jan. 23, 1917.

5 SHEETS-SHEET 5.

WITNESSES: )f INVENTOR.

if? TTORNEY.

UNITED STATES PATENT OFFICE.

CHARLES S. SHARP, OF AUBURN, NEW YORK, ASSIGNOR TO INTERNATIONAL HAR- VESTER COMPANY OF NEW JERSEY, A CORPORATION 0F NEW JERSEY.1

DISK HARROW.

Specification of Letters Patent.

Patented Jan. 23, 1917.

Application led June 10, 1912. Serial No. 702,645.

To all whom it may concern Be it known that I, CHARLES S. SHARP, a citizen of the United States, residing at Auburn, in the countyv of Cayuga and State of New York, have invented certain new and useful Improvements in Disk Harrows, of which the following is a specification.

.My invention relates to disk harrows, and in particular to that type wherein two complete harrows, having two disk gangs each, are operated in tandem relation, and consists in providing improved draft connections and means whereby the angle of the gangs relative to the line of draft of the machine may be simultaneously regulated; the object of my invention being to provide an implement of the character described that will be extremely flexible in operation, the mechanism permitting short turning movements at the-end of the field and a proper trailing effect and at all times under complete control of the operator. I attain these objects by means of the mechanism illustrated by the accompanying drawings, in which- Figure l is a top plan View of two disk harrows arranged in tandem relation and having my invention forming a part thereof Fig. 2"is a detached detail designed to illustrate the operation and construction of part of the draft mechanism of the front harrow and the manner of changing the angle of the gangs relative to vthe line of draft; Fig. 3 is a sectional end elevation of Fig. 2; Fig. 4 is a detached detail of Fig. 2

illustrating the operation of one of the swinging draft links connecting the draft frame with the disk gang frames; Fig. 5 is a side elevation, partly in section, of Fig. 1, showing also vthe rear portion of a tractor to which the tandem harrowis flexibly connected and from which the gangs thereof may be adjusted; Fig. 6 is a detached sectional side elevation of Fig. 1 and designed to illustrate the operation of the mechanism for regulating the operative angle of the disk gangs relative to the line of draft; Fig. 7 is a rear elevation of the forward harrow as shown in Fig. l; Fig. 8 is a rear elevation of the rear harrow as shown in Fig. 1; Fig. S) is a front elevation, partly in section, of one end of F ig. V8 and designed to illustrate the construction of the end bearing for the gang axles; Fig. 10 is an end elevation of Figf9; Fig. 11 is a detail showing the construction of the vertical pivotal connection between the gang frame and the draft frame members of the rear harrow; and Fig. 12 is a vertical cross section of Fig. 11.

The same reference characters designate like parts throughout the several views.

The draft frame of the lfront harrow includes a substantially U-shaped member l, having the rear ends 2 thereof arranged parallel with the line of draft and secured to a transverse draft frame member 3. and the head portion 4 thereof secured to longitudinally arranged frame members 5 spaced apart in parallel relation and having the rear ends thereof secured to the transverse frame member 3, and extending in rear thereofare curved laterally in opposite directions and have the ends thereof connected by means of a yoke member 6.

7 represents a yoke secured to the front ends of members 5 and having a vertically arranged bearing sleeve 8, in which is journaled the vertical stem 9 of a forecarriage l0, including an axle 11 connected with the lower end of the stem and having wheels 12 journaled upon opposite ends thereof, a vertically arranged draft member 13 carried by a. bracket member 1-1 secured to the stem 9 ,and having the lower end thereof connected with a bracket member v15 carried by the axle. v

The gang frames include transversely arranged main members 16, preferably of channel form, and having the upper ends of depending bars 17 secured thereto, the lower-- ends of the barsv being securedy to bearing boxes 18, .in which are liournaled the gang axles 19 carrying the disks 20, spaced -apart by means of spools 21 in a well-known way. the two gangs being operative as a bumper or`out-throw harrow. There are three bearing boxes for the axles of each gang, one at the inner ends and two spaced apart near the opposite ends of the axle. the two outside bearings being connected to the rear ends of the side members 22 of U-shaped draft members 23, the front portions of which are formed concentric with the vertiycal axes of rearwardly extendingl links 24 manner permitting an angular adjustment of the disk gangs relativev to the line of dra-ft.

-that ar'e 'journaled upon dependingstem portions 281 forming part of-bracket members 29 that arersecured to the draft frame members 2, the construction permitting an easy ladjustment of the gangs, and 30 represents downwardly extending bracket members that'are also secured to frame members 2 and engage with the front sides of the head portion of the U-shaped draft members in a manner to retain them in proper engagement withthe flanged wheels.

3l represents a block slidably received between the two members 5 of the draft frame, having depending ear members 32 that carry a transversely arranged pin 33, to which are connected rearwardly extending rods 34 that are provided with upturned portions at the rear ends thereof whereby said rods are connected to the inner ends of the gang frames by means of clips 85 and a forwardly extending rod 36y having the front end thereof connected with the lower end of a verti- Acally arranged evener 37 that is pivotally connected intermediate the ends thereof with the frame members 5.

38 represents a shaft having the front end thereof journaled in a. braeket'member 39 secured to the members 5 and provided with a threaded portion in rear of the bracket whereby it is operatively connected with the block 3l, the shaft being held against longitudinal movement by means of a collar 40 secured thereto and engaging with the rear side of bracket39 and a universal coupling member 41 secured to the front end of the shaft and engaging with the opposite side of the bracket member, and 42 represents a forwardly and upwardly inclined shaft having a coupling member 43 at the lower end thereof whereby the shaft is operatively connected with shaft 38, the body of the shaft being journaled in a swinging bearing block 44 carried by a bracket member 45 mounted upon the upper end of the stem 9 of the forecarriage, and 46 represents a hand wheel secured to the upper end of the shaft whereby said shaft may be rotated in a manner to control the angle of the disk gangs relative to the line of draft.

The rear harrow includes a draft frame comprising a U-shaped member 47 having parallel rearwardly extending members 48 secured to opposite ends of a transverse member 49, and supplemental draft members 50 having the 4rear ends thereof secured to opposite ends of the transverse member and converging inwardly and forwardly are secured to the draft frame memberl 47, and extending in a Plane above the draft frame of the forward barrow have the `front ends thereof secured to a draft head 5l that is pivotally-mounted upon the stem 9 of the forecarriage. I Y

The disk gangs of the rearharrow include main framemembers 52 that are pivotally connected withl opposite ends of the draft frame member 49 by means of couplings 53 that include base members 54 -that are 'use cured to the frame members 52 and provided with vertically arranged stems 55 that are journaled in bearing blocks 56 secured to the draft frame member 49 and 57 represents a king bolt securing the parts in operative relation.

58 represents depending gang free members having the upper ends thereof secured to the/frame member 52, and their lower ward, it is necessary to provide bearings l62 l to resist an end thrust of the axles in an 0pposite direction.

The bearings include a cup-shaped block secured to the lower ends of depending bars l 63 that have the upper ends thereof secured to opposite sides of the outside endsk of the gang frame members 52. The ends of the gang axles are journaled inthe blocks, and 64 represents washers interposed between the ends of the axle and an adjusting screw 65 whereby the associated parts of the bear` ing may be properly adjusted.

(S6 represents U-shaped draft members like in form to that of draft members 23 and connecting the rear disk gangs with the members 48 in a like manner.

67 represents longitudinally arranged bars secured to the draft frame in. parallel relation and arranged as guides for blocks 68 that are slidably received between each pair of bars andy connected with the upper end of evener 37 carried by the draft frame of the forward harrow bymeans of rods 69, whereby the blocks are adjusted simultaneously with the block 3l and in an opposite direction, and 70 represents bars conbars 67 in a manner preventing an upward movement of the inner ends of the gang frames.

The harrows are designed for use in connection with a traction engine and the hand wheel 46 is within convenient reach of the Y gang members.

operator of the engine and may be manipulated in a manner to control the Working angleof the disk gangs as desired, and the rea-r liarrow may be easily detached from the orecarriage and the front harroW operated singly.

What I claim as my invention, and desire to secure by Letters Patent, is:

1. In a tractor drawn tandem disk harroW, front and rear units flexibly connected, each unit having a plurality of pivoted gang members,and unitary means positioned to be reached from a tractor for angularly adjusting all of said gangs.

2. In a tractor drawn tandem disk harroiv, front and rear frames concentrically pivoted, each frame carrying a plurality of angularly adjustable disk gangs, and means positioned to be reached from a tractor for controlling the adjustment of said gangs.

3. In a tandem disk liarrow, flexibly associated front and rear frames laterally pivotally connected and each carrying a plurality of angularly adjustable disk gangs,`and unitary means located on the forward end of the harrow for simultaneously adjusting the angular positions of said gangs.

4. In a tandem disk harrow, front and rear frames laterally pivotally connected and -each carrying a plurality of pivoted gang members, and unitary means for angularly adjusting all of said gangs.

5. In a tandem disk harrow, front and rear units comprising each a pair of pivoted gang members the rear unit being capable of a lateral movement relative to the front unit and the gang members being adapted to be placed in cruciform arrangement, and a single member for adjusting the angular positions of all of said gang members.

6. In a tandem disk harrow, front and rear frames flexibly connected to each other, each carrying a plurality of pivoted gang members adapted to be placed in cruciform arrangement` and unitary means for adjusting the angular positions of all of said gang members.

7. In a tandem disk harrow, front and rear frames each carrying a plurality of angulaily adjustable disk gangs, fore and aft slidable blocks carried on each of the frames, draft links between the blocks and each of the gang members, and means for moving said blocks to adjust the gangmembers angularly.

8. In a tandem disk liarrow, front and rear frames each carrying a plurality of pivoted gang members, fore and aft slidable blocks carried on each of the frames, draft links between the blocks and gang members, and unitary 'means for moving said blocks to adj ustthe angles of all of the 9. In a tandem disk harrow, front and rear frames flexibly connected and each carrying a plurality of angulai'ly adjustable disk gangs, fore and aft sliding blocks on each of the frames, draft links between the blocks anddisk gangs, and unitary means for moving said blocks to adjust the gangs to cruciform arrangement.

10. In aV tandem disk hai-row, front and rear frames each carrying a plurality of angularly adjustable gang members and pivoted at their forward ends to a common pivotal member.

11. In a tandem disk harrow, front and rear frames each carrying a plurality of angularly adjustable gang members, and a forecarriage to Whiclithe front ends of both of said frames are pivoted.

12. In a tillageimplement, a frame, a pair of inthrow disk gangs pivoted thereto, means for moving said gangs about their pivots, and anti-tilting devices for the inner ends of the gangs comprising fore and aft frame bars, and a yoke member carried by eacli disk gang and sliding over said frame bars.

13. In a tillage implement, a frame, a

pair of inthrow disk gangs pivoted thereto, fore and aft extending trame bars adjacent to the inner ends of each of the disk gangs, a sliding block -on each of said frame bars having a. link connection with the adjacent disk gang for changing the angular position of the latter, and anti-tilting devices for each ofthe disk gangs comprising a vertically arrangedyoke member secured to the gang and passing over the adjacent frame' 100 bars. I n

l-l. In a tillage implement, a plurality of v liarroiv frames one disposed in front of the other and flexibly connectedy together. harrow gangspivoted thereto and normally disposed in parallel series, a plurality of gangs being in each-series, links pivotally connected to the adjacent ends of -each of said gang members, a member von each frame `to which certain of said links are connected,"

said gang members and engaging the roller connection on each of said frame members.

16. In a tillage implement, a plurality of horizontally disposed flexibly connected frames, a plurality of tilling gangs movable in a horizontal plane with respect thereto,

roller connections on each of said frames, an arcuate member attached to each of said gang members engaging a roller connection on one of said frame members, and means `f0r actuating each of said gang members to 130 connected 115 move its arcuate member with respect to said roller.

17. In a tillage implement, a plurality of horizontally disposed flexibly connected frames, a plurality1 of tilling gangs movable in a horizontal plane with respect thereto, draft connections on each of said frames, an arcuate member attached to each of said gang members engaging a draft connection on each of said frames, and a single means for simultaneously moving each of said arcuate members with respect to its draft connection.

18. In a tillage implement, a plurality of horizontally disposed flexibly connected frames, a plurality of tilling gangs movable in a horizontal plane with respect thereto, draft connections on each of said frames, an arcuate member attached to each of said gang members engaging a draft connection -ing spaced rearwardly extending members,

tilling gangs pivoted to said frame at points adjacent the ends of said frame members and movable about in a horizontal plane, a substantially U-shaped draft link attached to each gang member on opposite sides of its pivot to said frame, and a coperating draft member carried by each frame member at a point in front of each gang pivot.

20. In a tillage implement, a frame having spaced rearwardly extending members, gang members pivoted adjacent the ends thereof and movable in a horizontal plane.y a draft connection for each of said gang members comprising an arcuate member rigidly attached thereto on opposite sides of the gang pivot, and a. roller connection engaging said arcuate member and carried on one of said frame members at a point in front of the gang pivot. y

21. In a tillage implement, a plurality of flexibly connected frames with their forward ends pivoted at a common point, a tilling gang pivoted on each of said frames and movable with respect to the `line of draft, means including a single operating member for adjusting one of said gangs relative to the line of draft. and operative connections between said adjusting mechanism and the other gang whereby said latter gang may be adjusted upon movement of the same operating member.

QQ. In a tillage implement, a plurality of flexibly connected frames with their forward ends pivoted at a common point, one disposed in front of the other, a plurality of tilting gangs pivoted on each of said frames and movable with respect to the line of draft, means including a single operating member for adjusting the gangs on one frame relative to the line of draft and operative connections between said adjusting mechanism and the gangs on the other frame whereby said last mentioned gangs may be adjusted upon movement of the same operating member.

Q3. In a tillage implement, a plurality of flexibly connected frames with their forward ends pivoted at a common point, one disposed in front of the other, a plurality of tilling gangs pivoted on each of said frames and movable with respect to the line of draft, means including a single operating member for adjusting the gangs on one frame relative to the line of draft, and operative connections between said adjusting mechanism and the gangs on the other frame whereby said last mentioned gangs may' be adjusted in an opposite direction from the gangs on the first mentioned frame upon movement of the same operating member.

24. In a tillage implement, a plurality ofpivotally connected frames, a plurality of tilling gangs pivoted thereto and movable in a horizontal plane, an evener pivoted on one of said frames, link connections intermediate one end of said evener and the gangs on one of said frames, link connec tions between the opposite end of said evener and the gangs on the other frame, and means for moving said evener about its pivot.

25. In a tillage implement, a plurality of pivotally connected frames, a plurality of tilling gangs pivoted t0 each of said frames and movable with respect thereto in a horizontal plane, an evener pivoted on one of said frames, operative connections between one end of said evener and the gangs on one frame and between the opposite end of said evener and the gangs on the other frame, and means including a single operating member for adjusting said evenerl and thereby adjusting said gangs.

26. In a tillage implement, a plurality of pivotally connected frames disposed one in front of the other, a plurality of tilling gangs pivoted on each of said frames and movable with respect thereto in a horizontal plane, an evener pivoted on the front frame, operative connections between the gangs on said front and'rear frames and the opposite ends 0f said evener, an operating mem- .ber for said evener protruding beyond the line of draft the gangs on the front frame, and operative connections between said adjusting means and one end of said evener and between the opposite end of said evener 'and the gangs on the rear frame for -adjusting said last mentioned gangs.

28. An implement of the class described having, in combination, two harrows operative in tandem relation, each harrow including a. draft frame 'having disk gangs connected therewith, the draft frame of the rear harrow extending forward in a plane above that of the front harrow, and a forecarriage having the front ends of each of the said draft frames pivotally connected therewith.

29. An implement of the class described having, in combination, two harrows operaltive in tandem relation, each harrow including a draft frame having disk gangs connected therewith, the draft frame of the rear harrow extending forward in a plane above that of the front harrow, a forecar- .riage including means whereby it may be vconnected with a source of power, and having a vertically arranged stem, the front ends of each of said draft framesbeing journaled upon said stem. 30, An implement of the class described having, in combination, two harrows operative in tandem relation, each harrow including a draft frame, disk gang frames having a vertical pivotal connection with said draft frames, U-shaped draft members having the side members thereof connected with the gang frames. upon opposite sides of the vertical axes thereof and having the head portions of said members formed concentric with the vertical axes of the gang frames and connected'with the draft frame in a manner permitting an angular movement of the gang frames about their vertical axes, and means for adjusting said gang frames angularly.

31. An implement of the class described having, in combination, two harrows operative in tandem relation, each harrow including a draft frame, disk gang frames having a vertical pivotal connection with said draft frames, U-shaped draft members having the side membersthereof connected with the gang frames upon opposite sides of the vertical axes thereof, and having the head portions of said members formed concentric with the vertical axes of the gang frames, anged wheels carried by the draft frame of the harrow and engaging with the concentric portion of said U-shaped draft members, and means for adjusting said gang frames angularly.

32. An implement of the class described having, in combination, two harrows operative in tandem relation, each harrow including a draft frame, disk gang frames having a vertical pivotal connectionwith said draft frames in a manner permitting said gang frames to be adjusted angularly relative to the line of draft, means for adjusting said gang frames angularly, said means including a block slidably mounted upon one of said draft frames, a threaded shaft engaging with said block and secured against longitudinal movement, means for rotating said shaft, and operative connections between said sliding block and the inner ends of said gang frames.

33. An implement ofthe class described havlng, in combination, two harrows operative in tandem relation, each harrow includmg a draft frame, disk gang frames having a vertical pivotal connection with said draft frames in a manner permitting said gang frames'to be adjusted angularly relative to the line of draft, means for adjusting said gang frames angularly, said means including bars arranged in a fore and aft direction, in parallel relation, and secured to the harrow draft frame, a block slidablymounted between said bars, a threaded shaft engaging with said block and secured againstlongitudinal movement, a forwardly and upwardly inclined shaft having the rear end thereof connected with the front end of said threaded shaft by means of a universal coupling, a hand wheelsecured to the opposite end of said yinclined shaft, and operative connections between said sliding block and the inner ends of said gang frames.

34. An implement of the class described having, in combination, two harrows operative in tandem relation, each harrowincluding a draft frame, disk gang frames having a vertical pivotal connection with said draft frames in a manner permitting said gang frames to be adjusted angularly relative to the line of draft, means for adjusting said gang frames angularly, said means including bars arranged in a fore and aft direction,

in parallel relation, and secured to the draft frame, a block slidably vmounted between said bars, a threaded shaft engaging ,with said block, means for rotating said shaft, an evener pivotally mounted upon the draft frame, links connecting said sliding block with the inner ends of the gang frames of the front harrow, a link connection between said block and the one end of said evener, and operative connections between the opposite end of said evener and the inner ends of the gang frames of the rear harrow whereby the gang frames may be simultaneously adjusted in opposite directions relative to the line of draft,

35. An implement of the class described having, in combination, two harrows operative in tandem relatlon, each harrow lncluding a draftframe, disk gang frames having a vertical pivotal connection with said draft frames in a manner permitting an angular adjustment thereof relative to the line of draft, means for adjusting said gang frames angularly, said means including bars arranged in a fore and aft direction, in parallel relation, and having one pair of said bars secured to the draft frame of the front harrow, and two pairs of bars to the draft frame of the rear harrow, blocks slidably Lmounted between each pair of bars, a threaded shaft engaging with the block carried by the draft frame of the front harrow, means for rotating said shaft, a vertically arranged evener pivotally mounted upon the draft frame in front of said sliding block and having a link connection between the lower end thereof and said block, links connecting the inner ends of the gang frames of the front harrow with said block, link connections beoperatively connected to said gang members. 30

CHARLES S. SHARP. Witnesses :A

K. T. ELLIOTT, WM. L. HODDER.

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