US700017A - Corn-cultivator. - Google Patents

Description

Patented May I3, |902.

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OHARLS M. CARLSON, OF ODEBOLT, IOVVA.\

H Corna-fot:

LTIVATO R.

sPEoIEIcATroN forming panter Lettere Harem; No. 700,017, dated May 13, 1902.

Application iledIebruar'yAIOL 1902. Serial No. 93,351." (Ndmodelg f 1'- To @ZZ whom, 25 may concern/:f j

Be it known that I, CHARLs M. CARLSON, a citizen of the United States of'America, residing at Odebolt, in the county of Sac and State of Iowa, have invented certain new and useful Improvements in Oorn-Oultivators, of which the following is a specification.

This invention` relatesV tovcultivators, and more particularly to 4that class known as straddle-row sulky-plows.. Y

The objectV of this invention is to produce a plow in which the shovels may be automatically elevated for the purpose of disengaging weeds or otheraccumulations;.furthermore, to provide a frame'which is adjustable transversely/,said frame having secured thereto the plow-beams.

Furthermore, the object of the inventionis to produce a plow which shall possessadvan-l tages in points of simplicity, efficiency, and inexpensive construction. ,j

With the foregoing and other objects in view the invention consists in the detail of construction and in the arrangement and combination of parts to be hereinafter more fully set forth and claimed. v

In describing the inventionin detailvreference will behadvto the accompanying draw-n` ings, forming part of this specification, where'- in like characters denote corresponding parts in both views, and in whichy V Figure 1 isa plan view of a cultivator em-y bodying the invention. Fig.2 is'a side .view thereof. Y l

In the drawings, 1 indicates an arched axle having ground-wheels 2. A rectangularframe 3 is secured to the axle and held rigid'by the braces 4. A tongue 5 is secured. tothe axlel: and extends out` over the frame, to which it is bolted. A doubletree Gis pivoted to the tongue, has downturnedends to which the singletrees 7 are connected. An arched frame'- 8 extends over the tongueiand has depending ends, to which the plow-beams 94 are pivoted.'I

A connection 10 fromthe 'doubletrees to each': end 'of the'arched frame'acts as means for drawing the plow. 'Ihe beams are provided with suitable shovels lland stirrups 12, the

latter being engaged by the operator to guide theshovels. A seat 13 is supported by the spring 14, extending across the frame. ver 15 is pivoted to the bolt 15 and to the f 'the ground-wheel.

nallyaway from the wheel, where they are .a'rcliedframm said lever moving the arched .frame fromy side to side, according to the movement desired in the .plows. Aguide 16 extends across the arch under the tongue, and a link 17 ispivoted to the guide. and `to the ibolt` I5?, by which the lever l5 'and the doubletree are connected to the tongue.

18 is mounted on a support 19which extends betweenv the sides of the rectangular frame, and supports 20 extend from the support 19 to the axle. A segmental rack 2l is secured to each support ,20, and a lever 22 is pivoted to each segmental rack. Spring pressed pawls of any suitable construction'are proadjustinents on the segmental racks. The ends of the levers .'opposite the'handles are connected to the plow-beams by means of the 'chains23 or their equivalents. Hencethe said. beams may be lifted and held elevated ,bythelevers-,when the pawls lengagethe segmental raeks.

Further means are providedfor .elevating the shovels periodically at the will of the operator for discharging deposits of grass o r Weeds, said means comprising cranked levers 24, whichv are .journaled in bearings 25, atv"ta'lohedto the horizontal portion `of Vthe axle. 4One"extension of'each of the crank-levers is connected byv a chain or its equivalent to a shovelfbeam, and the other extension off'each vlever isto be engaged by a tripping-cam 26, secured to the under surface of the felly of The extensions lie nomi- 'heldby springs 27, but are projected into line -wherethe cam will engage them by means of the levers 28, whichare-fulcrnmed on the hooks 29g-secured to therectangular frame. VVhen'there is an accumulation on the shovels, the/handle'ends of the levers are pulled inwardly and the opposite ends carry the extensions of the cranked levers into the paths shovel, when the deposit willbe discharged..

veyed directly to the end of the beams, and the said beams maybe shifted transversely ofthe sulky by the manipulation of the lever 15. It is noted that all of said levers are within the reach of the drivers seat.

A rack `vided for the levers to hold them at varying vof travel of the" cams, thereby causing thel cranked lever to work and lift the'beam and By the construction shown the'draft'is con- IOO The construction, operation, and advantages will, it is thought, be understood from the foregoing description, it being noted that various changes may be resorted to in the proportions and details of construct-ion for carrying the same into practice.

Having fully described the invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In a cultivator an arched axle, a frame rigid with the axle, a movable arched frame, means for adjusting it, beams having their cndsconnected to the arched frame, cranklevers mounted in the bearings, connections from the cranked levers to the beams, camtripping blocks on the wheels and means for projecting the crank-levers into contact with the tripping-blocks.

2. In a cultivator, anarched axle, a frame rigid thereon, a movable frame having depending ends, segmental rackscarried by the rigid frame, levers pivoted on the racks, connections from tho levers to the beams, cranklevers mounted in bearings on the axle, connections from the beams to the crank-levers, springs encircling the crank-levers, trippingblocks on the wheels and levers for projecting the crank-levers into the path of travel of the tripping-blocks.

3. In a cultivator, an arched axle, ground- Wheels thereon, a frame rigid with the axle,

CHARLS M. CARLSON.

\Vitnesses:

JOSEPH SAMPsoN, NELS DANILsoN.

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