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Publication numberUSRE9169 E
Publication typeGrant
Publication dateApr 20, 1880
Publication numberUS RE9169 E, US RE9169E, US-E-RE9169, USRE9169 E, USRE9169E
InventorsMoses Johnson
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Moses johnson
US RE9169 E
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Description  (OCR text may contain errors)

- .[Such disk have nnsomlor marrow,


smiclncmron' forming art or Beissued Letters Patent no, 9,169, dated April- 20,- 1889.

Original to. seem, dated August a, 1869' Reissue No.

To all whom it may concern:

Be it known that "I, Moses JOHNSON, for; 'merly of Three Rivers, in the county of'St. Joseph and State of Michigan, but now residiug at Lockport, in the county of Niagara and "State of New York, have invented certain new and'useful- Improvements in Rotary Cultiva- --tors,' of whi'ch'I herebydeclare the following to be a full, clear, and exact description, ref

erence being had to the accompanying draw-'- ings, making a part of i this specification, and in Which- .Fignrellrepresents aplauoritop view ofa rotary cultivator embracing my improvements Fig. 2, a side elevation thereof. Figs. 3, 4, and 5 represent various styles of'cutters' which maybe usedin place of perforated or spoked cutting-disks'shown in Figs. 1 and 2. Figs.

, 6 and 7 are detail views of an open-'disk cutting-wheel; f i f My invention more especially relates to that class of cultivato'rs'which are furnished with vertical rotating cutters or disks for turning, furrowin'g, and pulverizing meson- H v Letters Patent No. 85,451, granted to me De= cember 29, 1868, show a rotary' cultivator. in which concavo-convex'disks, adjustable at an angle relatively to the line of draft are mounted. upon gang-beams" also adjustable relatively to the line of draft, and said. patent shows a series of disks adjustable 'relatively'to th'ejline of draft. upon a single transverse beam'co'nnested 'directly vith thedraft ban I My present inyention is ed'jon and 'con- 3 5 stitutes an improvement f upon the machine shown in my aforesaid Letters Patent. fHere' tofore, sofar as my knowledge extends, it has been customary in machines of this j class to change the angles of the'd'isks relativelytothe line of draft y means of a bolt or nut, which method ofoon'structionfnecessitatestw eniploy'ment of a wrench, and consumes considerable time in efl'ectingsnchadjustment; I I che t ore, w t t e x-l November 11,1871],

. DIVISION BQ em dated May 1, .1858. "Applicatien for reissue filed j mode of adjustment renders-it'd severaldisks at a'uniform' pitch.

Concave-convex cutting-disks have also heretofore been made without a continuous :spaces, or'perfor'ations in the side th tween the rim and'the' huh. i

Prior tomy invention such disks'have been made with projections 01'' bosses'on their vsiork 5 5 ing faces. I

The objects of the first partofmyinvention are to enable the operator "readily to adjust and don'tro l the cutting-disks 'yghile' in opera tion'; to which end my improvements consist- First, in combining a mainframe, a draftbal", cutting-disks mounted on the main frame at'an angle with the line'of draftand-sup porting the frame above the ground, mech an :ism for adjusting the disks, and a detentfor locking the adjusting mechanism and the .disks'intheir adjusted'posit'ion.

Second. My improvementfurther consistsin combininga main frame, a draft-bar, cutting disks arranged onop'posite sides of thedraft' bar at an angle'with theline of draft, the disks supporting the'frame, mechanism for varying the angle ofthe disks,,a detent for locking theadjusting mechanism and the disks in their adjusted position, wherehythe" operatorobtains a: lever purchase sufficient to set the'disksat one time atany desi'red angle, 'not'witlrstanding they may be embedded 'in theearth', which forms'a resistance against 'th'ei 1- side's sufficientto reqnire'the strength of a-man' when no: lever 'or purchase is' afi'orded, and:

whereby a 'boyc'an adjnstall the disks" simulg-JV taneously without a "wrench insuch" a mannerthat they will all retain the same pitolfrel'a 'tigely to the line of draft. 1' k Third. lMy impr'ovenientfurther consistsfini comhining'a 1 main frame, a' v'slot'tedj drat't b'ar eonnejcted therewith, cutting-disks mounted on'tlie' frame, anaa ustab e barpassing'end 'gle of the disks maybe which d ct hcritl yfjtl za j varied "relatively to the'li'neof draft.

cutting edge or rim, and having openings,

' strain upon the disk,and to of the soil, and to insure the breaking ofclods:

combining a draft-bar, disks arranged on opposite-sides of the draft Fourth. My invention further consistsin a cross-bar, cuttingbar, which support the frames-hove the ground, a perforated barfor varying the angle of the disks, and a dog which enters the perforations in the. bar for holdingthedisks atthe angle Fifth. The next part of my invention relates to the construction of the cutting-disk itself. Its object is to lessen the working or lumps, which ends I attain by constructing a concavo-convex disk with a continuous cut-p ting edge or rim connected with its hub by means of spokes or radial arms left by perforating the disk.

revolving cutter provided with a continuous cutting rim or edge co'nneetedwith its axle or hub-by means of spokes.

machinehaving a draft baror pole, A, attached to a downwardly-projecting mainframe, B, the rear extension constitute a lever-handle, .b, 'by wliich the operator may obtain a lever purchase to vary the-angle of the disks.

An adjusting-bar, D, in which roller, 0, is mounted,

' the frame and draft-bar,- by means of which 'bar and looks. it at the the adjusting-bar is firn'i-ly supported, against and yet canbe readily moved y lateral strains,

its supports in order to adjust draft bar at. various heights A spring'dog, a, upon the draft-bar enters into one of the series of holes in the adjustingdesired position in a well-known way.- The adjusting-bar and spring-dog constitute a detent by which the frame may be heklin any desired position.

Goncavo convex rotating disks E are'shown as provided with continuous rims or cutting edges connected with their hubs by means of radial spokes formed by corresponding perforations in the disk, which openings prevent accumulations of wet earth upon the face of the disk and assist the working'of the soil. These disks are shown as mounted on short stud-axles cm the lower end of the downhanging main framethe axles inclined, it will be observed, both to the line of draft and-to the horizon. "The drawings show two such disks symmetrically arranged on opposite sides of the tongue, with their convex or working faces upward, and so arranged as to cut-up,-

turn over, and coverweeds or other such things. The working faces or convex faeesof these disks, it will be observed, are made smooth, which constrnction prevents any tendency to, clog the-faces of the disks.

Scrapers d, mounted on the frame, projectover the surface of the disks,

spection of the drawings.

assist the stirringof said beams'B-of which have claimed the combination of a supporting passes'throngh slots in =vision anything which formsthe subject-matinvention is-.-

slot in the draft-bar, whereby the angle of the disks may be varied I and held relatively to "the ground, a perforated bar for to. portion of which they conform, and thus serve to'keep them free from clogging matter. Owingto the organization above described, when the rear end of the frame is lowered or raised by the handles, the'angles of the disks relatively to the line of draft and to the horizon are varied,as'will be shown. from an in- ,An apron, G, in the shape of a bent rake: head, is hinged to-the lower portion of the mainframe, its teeth projeetin g. backward and I downwardand acting as rakes still further to stir up and pulverize the soil turned over by the disks. p I

A plow, h, projects downward and forward from the lowerfront end-of each side beamof v I the main frame. Sixth. My invention further consists in a. o

It will be observed ni cutting-disks really support the implement, while the plowsh serve to prevent the machinefiom tilting sidewise 'and'suppo'rt the disks laterally. The accompanying drawings represents ,The operation of the machine will readily be understood from the foregoing description. In another division of this application I a draft-bar, a main frame, disks secured uponvthe crossbeam, and guiding-handles in amachine without a support other than the disks them: selves.

I do not, of course, mean to claim in this diter of the one above referred to.

Having thus describedmy improvements in rotary culti-vators, what [claim as of my own 1. The combination, substantially as hereinbefore set forth, of a main frame, a draft-bar, cutting-disks mounted on the frame atan angle with the line of draft and supporting the frame above the ground, mechanism-for adjusting the angle of the disks, and a detent for locking the adjusting mechanism and the disks in their adjusted position.

2. The combination, substantially as hereinbefore set forth, of a main frame, a draft- .bar, cutting-disks'arranged on opposite sides of the draft-bar at an angle with the line of draft and supporting the frame, mechanism for varying the angle of the disks, and a de tent for locking said mechanism and the disks in their adjusted position.

3. The combination, substantially as hereinbefore set forth, of amain-frame, a slotted draft-bar connected therewith, cutting-disks, an adjusting-bar passing endwise through the and a pawl or dog,-

the line of draft.

. 4. The combination, substantially as -here-' inbefore set forth, of a draft-bar, a cross-bar, cutting-disks arranged on opposite sides of, the draftbar and'snpporting the frame above varying the angle of the disks, and adog which enters the cutting rim or edge connected with its axle Y perforations in the bar for holding the disks or hubby means of spokes. at the angle to which they are set. In testimony that 1 'laim the foregoing as s 5. A revolving concavo-convex disk-cutter, my own I have hereunto set my hand and seonstructed, substantially as hereinbefore set, amxed my seal in the'presence of two wit- 15 forth, with a continuous unobstructed rim nesses. v


or cutting-erlge connected with its hub by spokes. Witnesses: t.

6. In acultivator' or other earth-turning irn- C. M. SOUTHWOBTH, -1o plement, a. revolving continuous unobstructed ALFRED H. HOWELL.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US5620055 *Aug 16, 1995Apr 15, 1997Javerlhac Jean CPlow disk of the type intended to be mounted free in rotation on a shaft integral with the frame of a plow