US672485A - Disk harrow. - Google Patents

Description

No. 672,485. Patented Apr. 23, I90l. J. LINDSTRUM.

DIS K H A R ROW.

ication filed. Dec. 4, 1900 2 Shaets$heet I.

(No Model.)

IlllIIIl|IHIIQ!I]IlllllllIllIillllllIIIIHHIHWHIHIHI No. 672,485. Patented Apr. 23, l90l. J. LINDSTRDM.

DISK HARBOW.

(Application filed Dec. 4, 1900.)

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UNITED JOHN LINDSTROM, OF SAN JOSE, CALIFORNIA, ASSIGNOR OF THREE-FOURTHS TO FARMERS UNION, OF SAME PLACE.

DISK MARROW.

SPECIFICATION forming part of Letters Patent No. 672,485, dated April 23, 1901. Application filed December 4, 1900. Serial No. 38.639. (No model.)

To all whom it may concern: upon the standards N are the collars or Be it known that I, JOHN LINDSTROM, acitiswivels O, to which are attached the draftzen of the United States, residing at San Jose, rods F. These latter are pivotally secured at county of Santa Clara, State of'Oalifornia, their other ends to the lever F. This lever have invented an Improvement in Disk Haris fulcrumed upon the horizontal piece G" at 55 rows; and I hereby declare the following to f. The inner ends of these levers are conbe a full, clear, and exact description of the nected with a cross-head J by the links D. same. This cross-head is slidable in the guide K and My invention relates to improvements in is operated by a lever Q. Upon this cross- I0 cultivating devices of the character employhead are the braces J, by which its position 60 ing concavoconvex disks for turning the at right angles to the line of travel is always earth. maintained. Thus by means of the lever Q,

It consists of sets of disks or gangs sup- I am able to operate the two sets of disks or porting a framework, each gang pivoted to gangs simultaneously and have them act on this frame in such a manner as to be turnable the ground at any angle desired in relation 65 inwardly or outwardly in relation to each to the line of travel. other, means by which this movement is The hounds B connect the pieces G with made, draft-rods leading from the base of the the tongue and give rigidity to the structure. standards supporting the frame above the The value of making these gangs adjust- 2o axle of each gang, whereby the draft or pull able in relation to each other is recognizable 70 is from a point near the axle, novel means in the working of many varieties of soils. It for lubricating the journals, and of details allows an immediate adaptation to cut a more fully explained in the following specibroad or a narrow furrow, as may be desired. fication and accompanying drawings. The draft-rods F connecting, as they do,

Figure 1 is a perspective of the machine. with the standards near the axles and lead- 75 Fig. 2 is a bottom View of the machine. Fig. ing to a point forward on the frame relieves 3 is an elevation of a standard and its conmuch of the strain usual in machines where nections. Fig. 4: is a plan of one of the gangs. the gangs are supported solely from a point Fig. 5 is a section of one of the standards. immediately above the axle. Thus added Having reference to the drawings, B repstrength is here given and also ease of draft. 8o resents hounds or parts of a framework from Having thus described my invention, what which extends the pole or tongue 0. To the I claim as new, and desire to secure by Letters ends of the cross-beam H of this frame are Patent, issecured the horizontal pieces G, which are l. The combination of gangs of disks, pivsupported pivotally upon the gangs A at L, otally-mounted pieces, bars and standards de- 85 Fig. 4C. To the bar L of each of the gangs pending therefrom and connecting with the are secured the standards N. These standgangs, draft-rods extending upwardly and ards carry the boxes P, in which the axle of forwardly from the lower part of the standthe disks A is journaled. The standards ards, levers pivotaliy secured between their havealongitudinal central opening N, which ends and having opposite ends connecting 90 extends through the journal-box to the axle with the draft-rods, a slidable cross-head beand is closed by a cap M. Through this opentween the gangs and connections between the ing the axles are lubricated. These standcross-head and the inner ends of the levers, ards are usually made by casting the metal and a lever and connection for operating the about a three-fourth-inch gas-pipe, which is cross-head and simultaneously turning the 5 allowed to project sufficiently below the castgangs with relation to each other. ing to pass into the journal-box. The pipe 2. The combination in acultivator of revoserves not only as an oiling-duct, but gives luble disks arranged in gangs, the disks of added strength to the standard. each gang having a common axle, standards Immediately above the journal-boxes and rising from the axle-boxes and a bar connect- IOO ing the standards of each gang, a horizontal inwardly or outwardly in relation to each piece pivotally mounted upon each of said other. 10 bars, draft-rods swiveled upon the standards In Witness whereof I have hereunto set my at a point near the base thereof, the levers F hand.

5 pivoted on said horizontal piece and with JOHN LINDSTROM.

which the rods connect, a cross-head and con- Witnesses: nections therefrom to the levers F and means 0. M. LORIGAN, for operating the cross-head to turn the gangs A. O. MATTHEW.

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