US2139486A

US2139486A - Plow point attachment

Info

Publication number: US2139486A
Application number: US118519A
Authority: US
Inventors: Harry G Bolkcom
Original assignee: Individual
Current assignee: Individual
Priority date: 1936-12-31
Filing date: 1936-12-31
Publication date: 1938-12-06
Anticipated expiration: 1955-12-06

Description

Dec. 6, 193s.k H4 G, BOLKCOM 2,139,486

PLOW POINT ATTACHMENT Filed Deo. 3l, .1936

MMM @L i for the purpose of 'sharpening or repairing the of the share 8, and said .point is transverseliyI Patented Dec. 6, 1938 UNITED STA-TES PATE-NT 'oF-FICE iPLOW 'POINT ATTACHMENT `Harry G. Bolkcom, Minneapolis, Minn.

Application lDecember 31, 1936, Serial No. 118,519

8 Claims. (Cl. 5PZ-125) -'My present invention relates to plows and has point 9 is a. slot-likeseat I3 in which the respecfor its object the provision of a plow point that tive end of the share is mounted, as best shown 'may be separably and detachably connected `to a in Figs. 5 and 6. plow, `whereby `the point may be `readily removed lThe point 9 overlaps the respective end portion same. In `case the point His beyond repair, the beveled sol that its free longitudinal edge issharp Asaine imay be quickly removed and a new point and closely engages the upper face of the share substituted therefor. 'When the improved point 8v to aiiord a 4relatively smooth surface 'between is removed from the plow, the share may also be said point and share. 'Ihe peint 9 iS detaehebly 10 removed from the mold board, to which it is desecured to the share 8 by tWO nut-equipped bolts 10 tachably connected, and said share sharpened I4 and I5, the former of which extends through and repaired, It is obvious that when the point aligned hOleS in the pOint 9, the Share 3 and e and the share are removed from the plow and 111g I6 integral with the land side of the point 9. separated, the one from the other, the handling By reference t0 Figs. 4 and 5 it Will be noted that I5 thereof, while sharpening or repairing either the upper face 0f the lug l5 iS flush With the lOWeI l5 thereof, is much easier than when they are on Surface of the seat I3, so that the share 8 rests the plow, directly thereon.

It is now necessary, when a plow point is worn The bOlt l5 eXtendS threilgh aligned hOleS in out, to cut the same from the plow and weld a new the peint 9 and the Share 3 The uppermost end one in place thereof, This process requires the 0f the Seat I3 iS Open, See Figs. 2 and 4, S0 that 20 selection of a metal that can be readily Welded, the Sha-Te 8 may be freely inserted inte Seid Seat. instead of a metal that has the proper wearing but When the bolts i4 and l5 are tightened, the qualities. By making the point separable from share 8 is sprung tOWald the lend Side Il, therethe plow, which eliminates the welding process, by frietionelly Clamping the Share 8 between the the share and point may be made of metal selectpeint 9 and the land Side l TO aSSiSt the belts 25 ed for their wearing qualities. I4 and I5 in holding the point 9 against angular c To the above end, generally stated, the invenmovement t0 the Share 3 in the plane thereof, tion consists of the novel devices and combinathere is formed 0n the under Side 0f the point 9 tions of devices hereinafter described and dea transverse shoulder I'I with which the lower fined in the claims, longitudinal edge of the share engages throughout 30 In the accompanying drawing, which illustrates the Width 0f the peint 9, See Figs. 3 and 4- the invention, like characters indicate like parts T0 further detaehebly Secure the Peint 9 t0 the throughout the several views, plow, the forward end portion of the land side I0 Referring to the drawing; is inwardly offset at I8 and overlaps the rear end Fig. 1 is a fragmentary plan view of a plow Dertien 0f the land Side Il, See Fig. 1, and the 35 having the invention embodied therein; OVeIla'Dped DOItOnS of Said land Sides are de- Fig. 2 is a view of the land side of the plow tachably connected by a nut-equipped boit I9. shown in Fig. l; From the above description, it is evident that Fig. 3l is e fragmentary bottom pian view, the point 9 may be removed from the plow simply .w showing the point and the share separated, the by taking Oilt the bOltS i4, i5 end i9- In CaSe 40 one from the other; the share 8 needs to be sharpened or repaired, Fig 4 is an inside elevation of the point rethe Seine may be TenlOVed by taking Ont the faS- moved from the plow; and tening devices I2.

Figs. 5 and 6 are fragmentary detail views in What I Gleim iSI .i5 section taken on the lines 5-5 and 6 6, re- 1. A 910W having e reni-OVable Point. Said DOint 45 spectively, on Fig. 2, on an enlarged scale. and the share having overlapping engagement,

Of the parts of the plow shown, the numerals "I, the one with the other, said point having a lug a and 9 indicate, respectively, the mold board, the on its under Side which projects under the share. share and the point, the latter of which is the a fastening device extending through aligned ,3g subject matter of this invention. The land side holes in the point, the share and the lug, a secof the mold board 'I and the land side of the ond fastening device extending through aligned point 9 are indicated by the numerals I0 and I I, holes in the point and the share, and a third fasrespectively. The share 8 is detachably and retening device releasably connecting the land side movably secured to the mold board I by bolts of the point to the land side of the mold board.

5o or rivets I2. Formed in the land side II of the 2. A plow having a removable point, said point 55 and the share having overlapping engagement, the one with the other, said point having in its land side a slot-like seat in which the respective end portion of the share is mounted, said point having on its under side a stop shoulder with which the share engages at its lower longitudinal edge, said point having a lug on its under side which projects under the share, and a fastening device extending through aligned holes in the point, the share and the lug.

3. A plow having a removable point, said point and the share having overlapping engagement, the one with the other, said point having in its land side a slot-like seat in which the respective end portion of the share is mounted, said point also having on its under side a stop shoulder with which the share engages at its lower 1ongitudinal edge, said point having a lug on its under side which projects under the share, a fastening device extending through aligned holes in the point, the share and the lug, a second fastening device extending through aligned holes in the point and the share, and a third fastening device detachably connecting the land side of the point to the land side of the mold board.

4. The structure dened in claim 2 in which the slot-like seat is open at its uppermost end, whereby the share may be frictionally clamped between the point and its land side by said fastening device.

5. A plow having a removable point, said point having in its land side a long slot in which the respective end of the share is removably tted with said point overlapping the share from its land side edge, said point having on its land side a lug underlapping the share, and a fastening device extending through said lug and detachably connecting the overlapping portions of the share and point.

6. The structure dened in claim 5 in which the land side of the mold board and the point have vertical overlapping engagement, and a second fastening device detachably connecting said mold board and point at the overlapping land side portions thereof.

7. The structure defined in claim 5 in which the point has on its under side a stop shoulder with which the front edge portion of the share abuts and is held thereby against relative angular movement.

8. A removable point for a plow having in its land side a long slot of substantially a constant width for receiving substantially the entire land side end of a plow share, and means whereby the point may be detachably secured to a plow.

HARRY G. BOLKCOM.