US1790051A - Harrow - Google Patents

Description

C. J. KNIPP Jan. 27, 1931.

HARROW Filed llarch 28, 1930 5 Sheets-Sheet 1I nvcnlor 'mr, c7.

1 By Allume,

Jan. 27, 1931. c. J. KNLRP 1,790,051

HARROW Filed uamh 28, 1930 :s sheets-sheet 2 (u nbenlor Allorney C. J. KNIPP Jan. 27, 1931.

HARROW Filed March 28, 1930 5 Sheets-Sheet 5 nvenlor i yAllorney Patented Jan. 27, 1931 ENTfiorFiCeE' i CHARLES J. KNIVPP, or*y NnAn'rIr'roN, MIssoUR'I Hannow;

"- Applcation ledMarch 28,

"1G -angularity of the discs may be e'XpeditiouslyV adapted and secured in adjusted position while the harrow is in operation and without the necessity of stopping the same.v A

.OtherobjeCts 'of theinvention are to pro-A "15 vide a'harrow of the aforementioned character which will be simple in'constructioin' strong, durable, eiiicientinits use and which maybe manufactured at low cost.

All of the foregoing and still further ob'- 20 jects and advantages vof lthe'invention may become' apparent from a study of thefollowing specification, Vtaken in connection with the accompanying' drawings wherein like charactersv of reference designate corresponding parts throughout the several views, and wherein Figure 1 is a top plan View of a disc har- .row constructed in accordance with this invention. Y

Figure 2 is a View in side elevation thereof.V

Y Figure 3 is a fragmentary `view in bottom plan showing the means of adjustably se-v curing the plate to` the beam. Y

Figure 4 is a cross sectional view taken substantially on the line 44 of Figure 2 looking in the direction of the arrows.

Figure 5 is a fragmentary view in rear end elevation showing the means for pivotally connecting the discs to the plate.

Referring to the drawings in detail, it will be seen that the reference numerall designates an elongated longitudinally extending beam of substantially inverted U-shaped cross section and having a longitudinal slot in its forward end portion and a pair of spaced longitudinal slots 3 in its rear end portion. Mounted for longitudinal sliding adjustment on the rear end portion'of the beam 1 is a 59 horizontally disposed. plateor platform 4 Y opposite-sides of the plate or platform4 are i936. serial No. eases j which i, is niaabiy, Semmai 'on .Said Vbeam through the medium of thebolts 5 whichzexf tend slidably through' the slots 3.. visclear; ly illustrated in Figure 1 ofthe drawings, the

curved and convergefforwardlylandan integral upstanding marginalflange is provided 'on said plate;`

Y A lever 7 pivotallyfmounted on the beam 1 at an intermediate portion thereof as desig- 6U Vnatfcd at 8 and a segment Slis alsorigidly se- :cured onl the beaml .forreceiving fa I spring pressed detent ,101V operatively; mounted on the leger 7 for securing said lever .inV adjust- A l ed position.y A bar 11 ispivotally secured to the lever`7 asfat 1 2and extends rearward l 'y therefrom and has its forward end secured to'the'rear portion ofthe plate 4. bar 13 alsois pivotallyconnectedftothe lever 7 at 12 and extends forwardly therefrom in a sub.- stantially horizontalplane and has itshforward endfpivotally and adj ustably connected to the upper endportion of an 14 which extends for swinging movement through rthe slot'2 inthe beam 1 and is pivotallj7 supported between theV free endsof'the hangers 15 which Y are securedto the opposite sides of the beam 1. This. construction is best illustrated in F i gure '4 of the drawings. yAs clearly seen in Figure 2, thefbar 13 and the arm 14 are each provided with afseries of spaced holes which are adapted tobe selectively brought into registry with eachother toadjustably couple said bar and arm together. A coupling elementlG is pivotally mounted on the arm 14 beneath the beam 1 to connect the harro-w to a suitable `draft*implement rsuch as a tractor.

A pair of bars 17,' preferably of angle iron, are pivotally mounted, as at'18, beneath'the plate 4 and adjacent opposite sides of the re'ar end portion of the beam l. As best seen in Figure'l ofthe drawingsthe bars l17 eX- tend substantially parallell withthe rear edge of thegplate 4 and project beyond the oppositeA side,V of said plate. rIfhe -bars 17 are adapted forswinging movement in a horizon- Y tal,planebeneath the Vplate 4and have se-` curedto their upper sides adjacent their outer ends a pairof brackets 19` which slidably engage-ever the flange t Qn sadplate-t- Said 199 brackets constituting means for supportingV the outer end portions of the bars in a manner to -permit'swinging movement thereof. Arms 2O depend from the opposite end portions of the bars 17 and are provided in their l free end portions with bearings for rotatably supporting the shafts 21 upon which are mounted the barrow discs 22.v Rearw'ardly diverging brace arms 23 are secured to opposite sides of the beamwl and have their rear ends loosely connectedto'the forwardly prof jecting angular end portions 24 of the outer-L most of the shaft supporting arms 20, as clearlyillustrated in Figuresl and12of the drawings. Additional braces 24 are connected to the outer portions ofthe brace armsv 23 Y Y. and extend upwardly therefromand have its pivotalmounting 8 and the fplate i is thus 'moved longitudinally on the beamV 1 through themediumof the connecting` bar 11. Sliding movement of the plate lvr imparts swinging movement tov the bars 17 through the mediumV of the pivotal connection 18 between the plate and the inner end portion of each `of said bars. before stated, the connecA tion between the brace Yarms 23 and the portions 24E of the outermost of the arms 2O and also between the additional braces 24 and the Y bars 17 willl ermit swinging movement of i b D said bars `17 thereon.` The 'connection between the inner Vbraces 25 and the portions 27 of the'innermost arms 20 is alsosuiicientlyv loose to permit the slight swinging movement' of the bars 17 which would occur at thispoint.

' 1t will thus be seen that I have provided a harrow wherein the angularity of the discs i with respect to the direction of travel ofthe lharrow may beexpeditiously adjusted while the device is in operation. 4 Itis believed thatthe many advantages of ia discharrow constructed in accordance with this invention will be readily understood, and

mounted in spaced relation on each ofthe shafts and means mounted on thebeam for shifting the` plate longitudinally in a manner to swing the bars in a horizontal plane.

2. A harrow of the character described comprising a beam, a plate mounted for longitudinal sliding movement on the beam, an uptu-rned flange formed integrally on the marginal portion of the plate, a pair of bars v thereto, harrow discs mounted on eachv shaft and manually operable means mounted on the beam forA shifting the plate longitudinally on said beam.

8. A harrow of the .character described comprising abeam, a plate mounted for longitudinal sliding movement on the rear end portion of the beam, an"k integralfupturned flange on the marginal portion of the plate, a pair of bars pivotally connected at their inner ends beneath the plate for swinging movement in-a horizontal plane thereon, brackets secured to the outer portions of the bars slidably' engaged over the .flanges on the opposite side ofthe plate in a -manner 'to support the outer portionsof the bars for swinging movement therebeneath, means for shifting `the plate horizontally and longi tudinally on the beam in a mannervto swing the bars, braces extending outwardly from the beam and pivotally connectedto intermediate portions of the bars to permit the same to beswung by the plate and barrow gangs mounted on said bars.v

In testimony whereof I affix my signature.

CHARLES J. KNIPP.

although the preferred embodiment of the I invention is as illustrated and described, it

is to be understood that changes in the details of construction may be had which will fall within the scope of the invention `as claimed. I Y

VVhat is claimed is A 1; A harrowrof the character `described comprising a beam, a plate'slidably mounted for longitudinal movement yon'the beam, a f 'i pair vof bars pivotally conne`cted,`.at their inconnected tothe bars, a shaft secured to each bary in spaced relation'thereto, barrow discs ner ends, to the plate on oppositesides of the -Y beam, braces secured to the beam' and loosely

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