US1669025A - Plow - Google Patents

Description

May 8, 1928. 1,669,025

.11. P. sEAHoLM Y lPLow Filed March 11, 1927 n .f7/Ul J3. Sea/1,007?, ZZ/W M) h@ W5,

Patented May 8, 1928.

UN [TED T ATE S Jomfrn'r. sEAHoLM; or MoLN'njrLLINoIs, AssIGNoR-TOMQLINE'IMPLEMENT Cox-1i JeANY, oF Mor'grNEjmLmotts; A coRPoRn'rIoN'oF ILLINOIS.

f cenow.

Application filed-Manch 11. 1927*.: Serial A1\1'o..1 74,4 48.

iin/enti oirrelatesl .to a plo.yv, partic1i. larlyi. to .a, .plow o 'thai-.type know-n, as .gr Walking: plow. because the; operator behind ,fthe plow .when nsing'- it; The finvenf tion concerns a simpliedfonst-ruetion of this..type of plow f which departs; freinfthe standard 2 practice and enables an plow to; bei more' inexpensively. than has heretoforebeen the-case. ff... ;The presentepractice the. manufgctgre 01E mold board. plows iste gpmyide. -them with -shares .that may beremoYed jfor. sharp.- enimg or,- replacementLv These shares. not only form amextension ofthe. lower pal-t O the mold board but they have; pieces weldedon-to one .end.and-.edgeto. lform .a plowingpoint and. .a portion of thealandvsidefof .the The -mannerfin which V.thiesiei shares. are structed tand :attached .1 to. thobody. of .fthe plow.isillustrated inthe pel/tent 'to..ESp r ig, No. 1,203,104, lQctober 31, .1916, as .ivelLas in many. gothex= patentsof .eifs im il .ar naitnre in the-prior vai-t., This` construotgioi-i of, ,plow sherefwithe projecting andthiekened plow ing point. and withzx landside portion. has become..sc .un-iversnli that it is acoeptedas standard Practice j .by :tl-l. implement manufacturers. The-plowing. .pointgand the-landside portion, are; made by welding-a `.piece of :steelonto the main lbodyof the shane whichv is, alsousually made of steel.A This .requires e number ofopcrations and iso .relatively expensive process.

The .present invention contcmplnltcn a do- -partru'erom vthe standard prztcticeland the provision of 2L simpler and more inexpensive construction. Instead of providing the share with n. Welded plowing point :rnd a landside portion. theshzlreis made as n [lat mebalplntc. which can be sheor'cd to proper shape. from bar stock. The share does not formerly partof the lznidsidc of thc plow. Instead the lundside is formed of a flat metal plete which abnts tlieslm-rc and the molrlbozrrd. Y Thevploiv is-otlierwise sim- .plilied in its construction so that it may be mndeinexpensively out of a. minimum vmnu- 4ber of parts.

.The general object ofthe -invention-is to provide :in improved nml. simplified plow.

A more particular., object istoprovide an improved. plow` construction in 'which the .share used can be made of a- Het metal plato that can be sheared or stamped to shape.

1 Another' object is toprovide a plow having es. pai-s selshapedimd" com.. iedi that. mmimum. Weberei pieces, maybeempleye in building it.

1 Other.. :objects and metalfplbe luivingnl sloping .'frorit edge 4 6. It Willbeobserved that this. pletecan be easilygshenred or. stamped'- out 0f-.Hat metal slgoclcwithout requiringI any complicated operations inI its manufacture.

A moldboard 7 is provided which is supported by'a brace 8 towhich it is connected .by a. bolt). 'This brace is :i single member cut out Yof bar stock and bent to proper shape. It is bolted to the plow beam by the bolt 1'0 and its lower end is Connected 95 .to the'landside 4 by L bolt llwhich also vholds a. shoe 12 in place which will be hereinafter'descrilied'. This brace also forms a supportingr connection for the handles 13 and 14,. Vone of which is connected to the brace by the bolt 15 and the other'toone end of'tlie broce'by the4 bolt 16. This onc- A piece bruce thus forms the function of supporting thc moldboend. the landside, and the handles, :rs well :is acting :is @connecting menus for connecting the parts together .and making them rigid.

Thebenfiles 13 and 14 have braces 1'7 and 18 respectively extending orwardiand connected at. the point 19 to the plowv beam.

Connected toi' therear 'side-fof; the mold board "near its"'lower end is a: supporting plate 20 having an angle portion 22 connected to-v-Vthelandside 4. by-thefbolt 23. This plate is connected totthemold -boardby the bolts 24 and 25, the latter also serving to connect one end of an angle brace 26 in place, the other end being held in position by the same bolt 5 which-eonnectsthe plow beam 1 to the landside 4. This structure serves'to rigidly brace the lower vportion of: the iplowA andit also forms a support lfor the plow share. i "The'gplow'sliare 27' comprises al fiat metal pla'te'having 'asharpened edge 28 and "an end edge 29 which forms anjacute-angle withl the'fsharpened edge aindfprovides a plowing" point 30. The share' has iholes 43l and 32Vin it for the reception of bolts33 and 341by `nieansof-'whi'ch' it isconnec'ted to the supportingplate '20.- Whenblted in' position the share rests against the supporting plate 20 andabut'sagainstf"andis vsupport-'ed b'y'the sloping'edge of thalandside 4. It' will: be'noted that this ."sba'reit'an bequickly and easily made out of lflatmctal stock by .simplycutting or shearing off the required Elength for the share.

The landside 4 is 'preferably positioned slightlyv inward from the land edge of the -p'lx'liwshare`2' and the mold board 7` `asil 'lustrated in Fig. 2. `Itis also positioned sli'glitly"'abo`ve the vlo'wer `edge 28 of "the share. 'This gives a slight clearance for the point 'of the' plow lshare'as shown most clearly in Fig. 3. Positioned on the outside 'and beneath'. the lower i edge of the land'side at its rear en d is an L-'shaped shoe 12 which is heldin place the main bolt llthat'holds the bra'ce'Sto the landside. The outside surface of this shoe is substantially in line withthe' land edge of the share andthe mold boardy and thelower side of the shoe is substantially in line with the lower surface of the share. Its front 'edges are sloped toward the landsidc to avoid' forming abruptV edges which might hinder the smooth operation-of the lou', This shoe fakes the wear ofi' the lan side and forms a small inexpensive part that may bc easily replaced.

From the description and illustration given it will be readily apparent that a simplified form of plow has has been developed which can not only be inexpensively manufactured in the first place but which is constructed so that the Lshares that need rcplacement from time to time can be most inexpensively made. All of the parts can be made out of flat metal stock by a few simple operations and the plows constructed so that a minimum number of these vparts are employed. By avoidingthe expensive operations of welding a landside and a plowing point on the plow share the cost of these shares is greatly reduced and a farmer may.` replace his shares at such small cost that it `will not pay him to have them sharpened.

It is Yto be understood that the structure shown is forpurposes of illustration and that modifications maybe made in it without departing from the spirit and scope of the invention as defined by the claims.

l. A detachable share for plows comprising a plain'metal platejfreeof projections and openings except theopenings foi-'jre'-I ceiving bolts to hold the share in=p1ac e,' said share l being fiat and of substantially-uniform thickness-throughout, one'ofth'e side edges' of `the plate being beveled"andz'one"o the end edgesbeing at Tight 'angles'l to the side edges, the -otherfend edge being at an acute angle to the beveled edge." '"`f j=" -2. Thej combination haf-plowhaving acurved'metal mold board, offan :independe't Elandside member, a supporting plate; a'nd a detachable share bolted to lthe supporting plate,` said? share comprisinga Tmetal late flat and of substantially uniform thickness throughout its entire length; thei up er edge of the shareb'eing abutted again'stt 'e lower edge of the mold boardfand'thelower side edge being'beveled, the furrow- 4'end I edge =f said plate beingat an acute vangleftofthe lower edge to form a plow'point.: 3. The combination with a-plowfjh'aving a curved metal'njiold board, of an independent lland side-member havin a frort sloping edge substantially in lint'a-'w1th1the rear sur- -face of the mold board a supporting plate, and a detachable share boltedto thesupport'- ing plate, said share comprising a vmetal plate flat and of substantially'uniform thickness throughout with-its uppery edge abut tin the lower edge of the mold'board, and its ower edge beveled, the furrow end edfre of said plate being at an acute angle tot e lower edge and the furrow -end 'of the share being supported by the sloping edge ofthe landside.

4. A plow having a mold' board, a share, alandslde positioned slightly inward from the land edge of the mold lboard andshare, and a. shoe on the outsideof the landside near the rear thereof with its surface substantially in line with the land edge of the mold board and share.

5. A plow having av mold board, a. share, a landside positioned slightly inward 'from the land edge of the mold board and'sh-re and slightly above the lowerfplowingedge of the share, and a shoe positioned 'outhe outside and under the'lower edge of-the landside near the rear thereof.

6. A plow having a mold board, a landside, a supporting plate connected to the landside and mold board, a share comprising a fiat metal plate detachably connected to the supporting plate and supported at one end by the landside, a brace connected to the supholds the shoe in place, said brace being conporting plate by a bolt that also holds the nected to the plow beam and to the mold plate to the mold board, a plow beam conboard and having portions to which plow l0 nected to the landside near the center thereof handlesare connected.

5 by a bolt which also holds the brace, a shoe In testimony whereof, I have subscribed for the rear of the landside, and a brace conmy name. nected to the landside by a bolt which also JOHN P. SEAHOLM.

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