US1230963A - Plow. - Google Patents

Description

F. L. WESTBRGOK.

PLOW.

APPLICATION FILED AUG.2B. 1916..

1,230,963. latentudlune 26,1917.,

2 SHEETS-SHEE I.

, ard and beam and the frog.

'ITE

STATE-S PA1E" PLOW.

Application filed August 28, 1916.

T0 aZZ wwm it may concern:

Be it known that I, FRANK L. Wnsrcn0on, a citizen of the United States, residing .at Fish, in the county-of Folk and State of Georgia, have invented certain neW and useful Improvements in Plows, of Which the following is a specification.

This invention relates to turning plows and seeks primarily to provicle a point Which may be readily adjusted to compensate for wear and which may be used for a long time efficiently. The invention also seeks to provide a point which is reversible so that it may be used in the field without any appreciable 1oss of time. The invention also seeks to provide novel means for adjusting the landside and the frog relative to the point 50 as to obtain the desired penctration of the point, and also to provide an improved share.

The invention is illustrated in the accompanying drawingsand consists in certain novel features which Will be first fully described and then more particularlypointed out in the claims following the description.

In the drawings: 7

Figure 1 is a perspective view of a plow embodying my present improvements Fig. 2 is a side elevation of the same;

Fig. 3 is a plan view with parts in section;

Fig. 4 is an elevation With parts in section and looking at the side opposite that shown in Fig. 2;

Fig. 5 is a rear elevation with parts in section;

Fig. 6 is a point;

v Fig. 7 is share.

The beam 1 and the handles 2may be of any desired formation, the handles being connected with the beam by braces 3 as shown and as is now ordinarily donc. The rear endof the-beam is turned downwardly to form a standard 4 and is secured to the frog 5 by a bolt- 6 inserted through the detail perspective view of the a detail perspective view of the standard and a longitudinal slot 7 in the,

frog near the upper rear corner of thesame, the lower end of the standardbeing secured to-the frog by abolt 8 which firmly secures the parts together but may operate as a pivot to permit relative adjustment of the stand- The landside 9 is pivotally attached at its front end, as

- Specification of Letters Patent.

Patented J une 26, 1917.

Serial No. 117,232.

shown at 10, to the side of the frog near the lower edge thereof and the frog W111 pref 'erably be constructed with a concave scat to receive the front end of the landside, as shown in Fig. 2. The landside is provided with a heel or flange 11 at its lower edge which projects under the lower edge of the frog and is Wider at its rear end than at its front end. This construction gives the lands1de a firm bearing upon the ground in the bottom of the furrow and also permits the 'landsideto be so adjusted that it Will run on the bottom of the furrow notwithstanding the angle to Which the point may be adjusted. Near its rear end the landside carries a bolt 12 which passes through a vertical slot 13 in the frog so that the vertical adjustment of the rear end of the landside may be accommodated and the landside secured firmly in any position in Which it may be set. To further aid in holding the landside in its adjusted position, lugs or corrugations 14 are provided on the opposed adjacent faces of the landside and of the frog so that when the bolt 12 is tightened the corrugations or lugs are firmly engaged and prevent relative vertical movement of the frog and landside. The boit 12 also serves .to 'secure the lower ends of the handles to the frog.

The front edge or corner of the frog is formed on a regular curve Which may be of any desired radius according to the size and weight of the plow. The point 15 consists of a bar of tempered steel which is bent from end to end on a curve corresponding exactly with the 7curvature of the front edge of the frog so that the point Will scat smoothly and firmly against the frog .and have an extended support or bearing thereon. The point is provided with a pluthe openings 16 and also permitting a short worn bar to be firm1y secured to thefrog.

.The, .har,15 ,.is twisted slightly toward its opposite ends so that the upper and of the bar, when the same is in position, Will project forwardly and operate as a shin, as indicated at 20, While the extremities of the bar are turned slightly ontwardly or away from the center of curvature of the bar, as shown at 21, so as to provide spnrs or points which will readily penetrate the ground. Shonld one cntting and or point of the bar bacome Worn or dull throngh long continnad use, the bar may be ramoved and replacad after baing inverted so that the unused and Which wastormerly uppermost will become the working and and Will penetrate the ground; Theperiod during which the plow cannot be used will, therefora, be of 110 consequence inasmnch as the point may be in verted by the user in the field and the securing bolts ara accessible inasmuch as they are inserted throngh the lateral rib 19 and are therby spaced .f'rom the side of the frog. As the bar becomes shorter through protracted use and traquent sharpening it may be set lower upon the concave curved front adge of the frog and will scat firmly against the same, the tnrned point or spnr 21 being received'in sockets or corrngations 22 in the front side 01: the frog so that the point will seat fir1nly against the'frog and a short bar will etficiently resist. the thrnst npon the pl'ow whan it is in use, Shonld the bar bacoma vary short, a short piece of metal or an old worn ont point may be secured upon the frog above the point whi'ch is in use so that the front of the frog may be protected from wear andthe slots l8.cannot clog up.

The construction permits the use of a bar until naarly all of it is worn away ina smnch as it may be used until the nppar opening 16 in the bar Will pass below the lower and ofthe loWer slot 18 in the rib 19, as will be readily nnderstood.,

The moldboard 23 is secuied; to the front side of the frog and fits against the edge of thepoint 15 so as to be flush thereWith and the share 24 is secnred to the l.owar and of the frog and connected with the l'ower adge .of the moldboard by suitable bolts and at- 'tzching plates, as Will be readily understo0d.

The share is Symmetrical so that it may be reversed to accommodata for wear and its longitudinal edges are beveled, as shown at 25, so that the lower edge Will readily enter the ground; While the upper edge will, fit over the lower bevelad edge of the 1nololboard and bring the front faces of adjusted end:wise upon the frog and this adjnstment permits me to set the point so that it Will penetrate the ground to any desired depth. It is necessary, of course, to adjust the landside and the beam to correspond to the adjustment of the point, and the slot I in the uppar portion of the frog permits the neaded adjnstment of the beam relative to the frog. To aid in holding the beam and the frog in their proper relative positions, lugs, corrugations or projections 26' are provided upon theopposed faces of the standard and the frog. A locking kay or wedge 27 is also provided, the front face of the said ke v or wedga being preferably straight and beingprovidcd Wi-th transvarse grooves or notches 28 adapted tobe engaged by the upper rear edge of the moldboard supporting member of the frog and the rear side of the wedge or key being cnrved so that it ma) fit closely against the front cnrved side of the standard, as shown clearly in Fig. 4. This locking key or wedge is carried by the upper and of a bar or link 29 which has its lower and seau-red to the landside 9 nearthe rearand thereof, the upper and of said bar or linkbaing provided with a plurali-ty of openings 30 throngh any one of which an attaching:bolt inay be inserted into the wedge or key so that the 'working length of thebaror link may be varied to suit the adjnstmant 'which ma be given the landsida and the wedge. lVhen a change in the relative position of the frog and the standard or beam is necessary or desired the bolt 6 is loosened and the standard or beam then moved pivotally npon the boit 8 until it reaches the desiredposition after Which the Wedge 27 is aclji1stad so that it will fit snugly batween the front portion of the frog and the front side of the Ieam or standard. Tha'bolt 6 is then tightaned and the parts will be held fi'rmlyiir the position in which thay have beau: set..

It Wll'l be readily sean fromthe foregoing description, taken in connection With the accompanyingj drawings, that I have pro vided a very simple structure by which the efliciency of a turningplowwill ha enhanced. The point, owing to its reversibility and its symmetrical form and the fact that it is formed on a simple, regnlar carra so that it has. a long baaring-upon the front side of the f'rog, may be used fora very long ti-1ne without reqniring; the provision ofa non point and the slight twist giventhe extremities of' the pointnot onl'y permit it to readil;y enter the gronnd to the desired deptl1 but. also ai'd in holding it in its proper 7 position, whenit, has hecome worn as the upper and of the point in use Will engage a socket in the front face ofthe frGg and thareby serve as a brace to prevent the point slipping up onthe f-rogwhenthe plow happens to strike a: large rock or other obstruction. By properly forming the bevels on the longitudinal edges of the share and fitting the securing bolts in slots the share may be adjusted forwardly so as to compensate for waar and consequently, may be used for a long time without requiring the provision of a new share.

Having thns dascribed the invention, what is claimed as new is:

l. A plow provided With a point consisting of a bar f0rming a simple curve from and to and, its front face being concave and its rear face convex and its axtremities baing turnad rearwardly t0 project from its rear convex face, and the edges of the bar being parallel throughout the length of the same.

2. In a plow, the combination of a frog having its front edge forming a simple curva from top to bottom, a point consisting of a bar seating from and to and directly on the front edge of the frog'and having side edges parallel throughout their length,amoldboard secured at one and upon the frog against a side edge of the point and flush with the front face of the same, and a shara secured at one and to the frog against the side edge of the point below the moldboard and flush With the point and the moldboard.

3. In a plow, the eombination of a frog having its front adge forming a regular curve and provided on one side at said edge with a rib following said curve, a point consisting of a bar curved from and to and and saating directly upon the front curved adge of the frog, and securing bolts insarted through said bar and through the said rib on the frog.

4. In a ploW, the combination of a frog having its front adge forming a regular curve, a point eonsisting of a bar curvad from and to and to seat upon the said front adge of the frog, a standard pivotally securad at its lower and to the side of the frog, means for adjnstably securing the upper portion of the standard to the frog, and an adjustable key disposed batwaen the front side of the standard and the rear side of the frog.

5. In a plow, the combination of a frog, a point consisting of a bar seating from and to and upon the front edge of the frog, a standard pivotally attached at its lower and to the side of the frog and adjustably connected to the upper and of the frog, a looking key disposad between the front side of the standard and the rear side of the frog, and means at one side of the frog for supporting said key.

6. In a plow, the combination of a frog, a curved point sacured upon and extending over the front edge of the frog, maans for adjusting the said point 'along the vertical dimension of the frog, a baam connected with the frog, and maans for adjusting the beam relative to the frog to conform to the adjnstment of the point.

7. In a plow, the combination of a frog having its front edge forming a regular curve and providad in its front side with a plnrality of recesses, and a point consisting of a bar curved from and to and to scat upon the said front curved edge of the frog and having its axtremities turned outwardly from said curva, the upper extremity of the point being adapted to engage any one of the recasses in the frog.

8. In a plow, the combination of a frog, a standard adjustably connected tothe frog, and a locking key disposed between the frog and standard and provided on its front sida with notchas adapted to engage the rear edge of the frog and having its rear aide curved to fit against the front curved side of the standard.

9. In a plow, the combination of a frog, a standard pivotally attachad at its lower and to the frog, intarengaging proj actions on the opposad faces of the standard and the frog, and an adjustable connection between the standard and the frog above the loWer and of the standard.

In testimony Whereof I affiX my signature.

FRANK L. WESTBROOK. L. s.]

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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