US1635538A - Plowpoint - Google Patents

Description

July 12, 1927. 1,635,538

c. s. COLEMAN PLowPoINT Filed Sept. 14, 1925 Patented Jury [12, 1927.

i" i U'T- CHARLES s. COLEMAN, or Los ANGELES, oALrFoRNiA.

, PLowPoINfr. Y

Application led September This invention particularly pertains to a plow having a renewable point and working n edge.

Another object of the invention is to pro- Vide a construction inplows of the above character in which, aft'wo piece share is employed, one, of these pieces being secured to the mold yboard and normally permanent andv the'other piece being renewable and secured to the'permanent piece and providlng the point and cuttingedges.V` .A further object-ofthe invention'is Vto i provide avconstruction in plows of. the above character wherebyl renewable `cutting' membersof the sharemaybe securely affixed to the permanent member and heldagainst accidental displacement. thereonfyet be readfily detached for sharpening or lreplacement Y and renewable'member,.as hereinafter fullyy f 19 andprojects toward the upper edge ofthe member a v`suitable .distance and increases.

when excessively worn. f

n The invention resides generally "in the con'- structio'n of the joint or'connectionbetwe'en the permanent member and `the, removable set forth and defined in theclaim. j 1 V; The-accompanying drawing illustrates the f invention in its prefered embodiment, in

which A Figure 1 is a view inf perspective oftheV y Vpermanent member of the share e Figure'2 isI a'view `inperspective' .of the I., removable'member ofV the share whichlpro-v -vides the y,renewable point and edges thereof; l Figure 3 is al View in section asv seen ,on the line 3-3 of Figure 2; A

' igure 4 is a view inside elevation of a completely assembled plow embodying the members shown in Figures' 1 and 2 secured to a mold board; f u

Figure 5 is a View in vertical'section as seen on the line 5-5 of Figure 4.

lncarrying out my invention I employ a permanent share member 10 and a removable sh'aremember 11 adapted to 'be secured c together to form a complete plow share 12 as shown in Figure 4, the permanentmem-v ber vof Athe sharev being secured toa usual type 'of mold vboard 13, t-o 'form a complete plow 14. These parts may be designed to l lform a plow ofany suitable character according to the lservice for which it is re`v lquired but is. here shown asdesigned forl general soil breaking purposes. .The re-.

14, 1925. semi no. 56,167.

newable member ofthe share is providedl withthe requisite point 15, -andside edge 16, and provides the ,means for" renewing` the point and edge. v The permanent member`10 is adapted to 4befsecured to themold board 13 in anysuitable mannerfbut ishere shown as attached thereto by 1'bolts l17.

The permanent member 10 isformed with l 65 A ainarginal v side,fiange 18 spacedfrom the' a straight lower. edge from which projects front faceof, the member to formastraight continuous shoulder 19jat the base ofthe flange; theiange 18 -eXtendingfi-om the extreme rear .end of themeniber to av point f spaced inwardly from :the frontend thereof;`

and terminating: in an .end shoulder 20. The

outer edge ,21 of theange straight andy extends parallel with theffshoulder 19.* The front end of the member 10 is inclined rearwardly'and .is formedl with lan end` flange 22 i Vextending toward theland side of the sharef and diverging rearwardlyl from the pointe or front edge-of the plow at anl'acute angle.` I

This iiange 22 isl formed integral with' the permanent member and l. extends along the forward end thereof fromvthe lowe'rhor-i- Zontal edge in continuationl of the shonlder,

in width upwardly. '.,Thefront snrfa,cveoffv this end flange presents a smooth face against which a corresponding partofthe renewable meinberabuts to provide'. a rigid f ljoint as `hereinafterexplained, `and formed thereon is a .shoulder 23, `which entends transversely across andV projects o1)llifflil1)yV from 'the front ofthe end flange.;

The renewable blademember is formed with astraight'horizontally extending upper edge 24, adapted to abut against* the sheulder 19 throughout the length of the ypermanent fi member, and the innersurfaceof,therenewf able member is provided v,with ashoulder-25, against which the lower edge 21,0 f the` ange 18 a'buts, this construction providinga fiange" 26` along theupper edgeof this inemberfll adapted tol overlap the flange 18 on theV memwith one another to present` a smooth sur'-rv Y `face to the soiland toreduce the tendency -of abrasionat 4the joints from theaction of the soil.

VThe renewablebladep ineinberis alsofpro: f

vided withan end flange 27, formed integral therewith and shaped to conform to the outer face of the flange 22 on the permanent Y rlhis flange 27 diverges fronrtlie front edge Z9 of the share at the requisite I edge issubject 'to wear at points well upward onthe share, so that this edge being provided on an integral part of the renewable member is renewed together with the other edges subject to wear. A ledge 28 is formed on the rearfa'ce of the flange 27- and extends transversely thereof in continuation of the upper edge 24, which ledge is adapted to abut against the lower end of the flange 22 on the permanent member, and

formed onthe backof the memebr ll is a vertical shoulder 29 leading from the shoulder 25 -to -the edge l24 which shoulder is adapted to abut against the end 2O of the i flange 18 on thepermanent member.

Y Y lThe rear face of theflange 27, abutting vagainst the forward face of the flaiige`22 on the permanent member tends to hold the parts ino-re securelyl together, particularly since the forward Vmotion vof the plow throughjthe soil creates a thrust which will tend t-oV hold the parts more securely together Vadding n to the rigidity of the assembled share. Y Y

It-will be notedl that the edge 24 and ledge 28 form a continuousV abutment .adapted to bear throughout the length of thefslioulder 19 and the flange 22 ofthe' perinanent member andfthat the shoulder v2,5

l forms an abutment for the lower edge 2l of the flange'lS `so that edge thrusts on the re-A newable member willv Abe opposedtliroughout the `perinanent member in the same inanii'er as though the renewable and permanent meirrbers were made in one piece.

W henthe two' membersv of Vthel share are' assembled as shown in Figures et and .5 all joints betweenjthe two members present a smooth surface. The flange 27 extending upward to the shoulder 23 provides aprotection for the permanent member against abrasion from the soil. The renewable member ll is provided with countersunk holes 3() in the flange 26 which'register with holes 3l in the flange of the permanent member. j Rivets 32 are passedthroughthese holes and headed to securely clamp the members together. Boltl holes 35 and 36 are formed in the end flanges22 and '--27 respectively to receive bolts 37 which aid in further securing the members together. fr l .TvVhereas I have shown and describeda specific embodiment of. my invention I do not limit myself to the exact'details of con-` struction shown but`may employ other con-l structions and modificationsathereof, without ldeparting .from the spirit of the invention,

coming within the scope of the appended claim. l v

In aplow of the class described, a renewable plow shareand point comprising a unit for attachment to an unaltered fixedl share of a plow,tlie lowervedge of said unit being reduced in thicknessk for a. portion of its length only to provide both longitudinal and lateral shoulders, `a flan'e formed at the forward end of the meinberextending toward the land side and a shoulder formed on said flange whose forward end terminates short of the forward margin ofthe flange, a second unit .comprising a' plow point and cutting edge having a point yextension for overlapping the flange andshoulder lof 'the first unit andits upper portionv reduced in thickness and provided with a shoulder .for engagementand connection with tlie"recited lower edge and shoulder ofthe first unit.. and means for detachably' connecting the recited edges of the two units. ln testimony whereof I affixed my signature.`

CHARLES corsia/in.

have hereunto

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