US1306705A - melvin - Google Patents

Description

C. H. MELVIN.

PLOW.

APPLICATION FILED IEB. 2s. Iam.

1,306,765,A Panama June 17, m19.

2 SHEETS-SHEET l.

C. H. IVIEWIN.

PLOW. l APPLICATION rFILI-ID FEB. 28,19i4`- Patented, J une 17', 1919.

2 SHEETS-SHEET 2.

WL' trzeasse' [72 vene za r,

UNITED STATES PATENT onnron.

CHARLES H. MELVIN, 0F MOLINE, ILLINOIS, -ASSIGrNOIR, T0 DEERE & COMPANY, OF K MOLINE, ILLINOIS, A CORPORATION OF ILLINOIS.

PLOW.

Specification of Letters Patent. f Patented June 17, 1919..

Application filed FebruaryZS, 1914. Serial No. 821,792. i 2

To all whom t may concern:

Be it known that I, CHARLES H. MELvIN, a citizen of the United States, residing at Moline, in the county of Rock Island and State of Illinois, have invented certain new and useful Improvements in Plows, of which the following is a specification, reference being had herein to the accompanying drawlhis invention relates to plows, and more particularly to means for securing the share of the plow body in position.

A plow share, particularly in a traction plow, must be frequently removed for repairs, sharpening, and the like; and the present improvement seeks to provide simple and effective means which will rigidly and securely hold the share in position, but which can be readily disengaged to permit the removal of the share.

The invention consists in the features 0f improvement hereinafter set forth, illustrated in the preferred forms in the accompanying drawings and more particularly pointed out n the appended claims.

In the drawings- Figure l is a side View of a plow embodying my invention.

Fig. 2 is a bottom view showing the share vconnecting means.

Fig. 3 is a perspective view of the share detached.

Fig. l is a fragmentary sectional view of the share securing bolt, taken along` the line -i of Fig. 2, and on a larger scale.

Fig. 5 is a fragmentary sectional view `taken along the line 5 5 of Fig. 2, and on a larger scale.

Fig. 6 is a fragmentary sectional View taken along the line 6-6 of Fig. 1.

y Fig. 7 is a section through the abutment lug for the tightening bolt taken on a plane at right angles to that of the section in Fig. 4, and showing also the bolt.

Fig. 8 is a plan view of a plow body em- Y ment areinitially formed integrally, or with entireties, approximately of the usualfconstruction, being particularly designed, however, in such way that the share is not bolted in the old and ordinary fashion directly to the share, but in such way that the share (the most rapidly wearing part Y)can beremoved for sharpening or for the substitution of another.

In the present structure the moldboard-is indicated by a, the landside bar by 5,'the lower end of the plow beam or standard by (l, and the share by f. The lower end of the plow beam is rigidly held in proper relation f to the parts constituting the body by a pair of bolts 1 which extend through-the lower end of the beam, and through adjacent parts of the frog. The forward end of the landside bar is connected to the frog' by bolt2. v

The share f lies Aupon the upper face of the' frog c and is provided with a landside iiange which engages the landside ange c of I the frog.

The'rear end of flange f abuts against the forward end of the landside bar The ange is proyided with a horizontal projecting stud or abutment 6 which extends inward and lies below an opposing surface as at 7 on the toe part of the frog. Preferably, in the forward yportion of the landsidec of the frog there is formed a seat or aperture Ga'furnishing the inclined shoulder or surface 7 for engaging with the stud or abutment 6, 'as clearly shown in Figs.v l and 6. The' shoulders 7, 7 a are, in the specific form shown, provided by forming a slot in the landside flange o of the frog; thesel shoulders being the upper and lower walls or edges of such slots. But I do not restrict myself to this specific form of abutting dev vice for the lug or lugs 6, 6b.

The stud or abutment 6 assists in preventing the vertical movement of the forward part of the share relatively to the frog. The toe portion of the frog fits 'snugly share` and an abutment 8 on the under face between the inner face of the flange f of the of the share. The frog is, at the landside of 1 the structure, secured to the moldboard a by the nuts and the bolts 4a, and, at the other side, by bolt at 4. 9 is a fastening bolt connectedvto the share by a short bolt passing through the latter. The main bolt 9 extends longitudinally and rearwardly from its point of connection with the share, and its rear threaded end extends through an opening 11 in an abutment part 11a connected to the moldboard, and is provided with a nut 12. By screwing up the nut 12, the share f is drawn rearwardly through the medium of the fastening bolt 9 to bring thel parts thereof snugly into engagement with the frogand the moldboard, and draw the edge f2 of the landside part of the share snugly against the front edge of the landside bar b.

The main body portion of the frog c on one side of its toe portion is cut away or notched as at 13 to form a shoulder 14 which engages the abutment or head 8. This shoulder is preferably slightly inclined in rearward direction away fromthe landside flange c of the frog, so that, as the share is drawn rearwardly by the bolt 9, the shoulder 14 will have a wedging, or camming action against the head or abutment 8. The flange f of the share is thus drawn snugly against the landside c of the frog and the stud 6 on the flange forced securely into engagement with the seat or shoulder 7.

The. abutment 8 has af bolt 10 surrounded by a piece of metal 10a which takes the wear from the bolt and is provided with a nut 10b which holds the piece of metal around the bolt in place when the latter is subjected tov lateral pressure. The metal piece 10a around the abutment bolt 10 is constructed to engage the under surface of the frog in order that the bolt and nut shall have a broad bearing upon the lower face of the frog near; its front edge, this part of the metal wearing piece beingflared or flattened at its lower end, as shown; and the under surface of the front edge of the frog is beveled or rounded where it engages with the part mentioned. lVith this arrangement there will be a wedging or camming action between the frog and the bolt 10 and nut: as the latter are drawn rearward by the nut 112; and the share is thus drawn snugly. intol engagement, with the face of the frog and is securely held against springing away from the frog. A bolt 15 extends through tne outer portion of the share f and is provided on its lower endy with a. nut 17. This bolt is used to hold the-forward endof themain draw bolt or fastening bolt 9. In order to have it far enough back from the bottom of the furrow, and at the Sametime extend the frog metal forward,.a recess 1S is provided for it in the outer part of the frog. When the share is in position, the nut'17 assists in holding it against vertical displacement.

parts c3 and c4, respectively. llt lits snuglyy between the head or abutment 8 and the landsideflange f of they share and securely iolds the share againstv lateral movement relatively to the frog; The engagement of the devicesat 10u andA l0c witlrtheunderside ofthe frog', andl the engagement of thel studf4 er abutmentv 6 with the shoulder or edge at 7 on the frog, prevent the vertical movement of. the share.

The share may be readily removed. by Y loosening the nut 10b onlthe boltf 10,. and by removing the nut l2 on the; fastening bolt, 9. Then by tappingoirthe bolt 9,the share is forced longitudinally' away from: the other parts of the plow body.

It; should benoted thatv the abutmentse 6 and 8 which are securedfto the share are engaged with the shoulders 7. and 14 on.y the frog and are disengaged.' therefrom first, by alongitudinal movement of the share relatively to the-frog andithenby slightk lateral movement to separate the abutment 8y from. the-walls of therecess around thev shoulder ln replacingja share,thefpartsare assembled and the share snuglydraw-n into engagement; with the other partsof the plow body by tightening the nut 12: TWhenl this is done, the shoulder 14,. asy stated, has a wedging or camming actioiragainst the` headg or abutn'ient Sy to.v draw the liange f and stud G of the share snugly against the landside flange: of and. the shoulder?y while the-front partof the fnoghas a wedging'or camming action against theparts at 1.0, 10b, and 1.0, and draws the main portionof theshare snugly into engagement witn the, face of the frog. After the nut IQistight`- ened, the nut 1.0b on the. bolt 15 isvtightened to hold the heel or;V outer part of the share securely in place;l The improved construetion serves to. rigidly hold the sharein position while permitting the ready'removal ofI share for repairs, sharpening, or the i te:

Thefmetalpiece'at the abutmentv 8 which receives the direct contact` with adjacent.` partsis shown. as a'short tube 10a which surrounds the-bolt 10., litsalower end is oX- panded. or flattened, .as shownat 10.

The metallic piece 10a is of such` axial length as to permit the head part-:10 tozbe. forced down by the nut 10b so as to get: a

clampingV on the under side of the frog after v the latter has been drawn to placeV by nut 9.

vIt will be seen that the parts constituting the frog are thosewhich provide a common l As above noted, the frog, as an entirety,

has been designated by c. It can be regarded as composed of two sections c3, c4, the larger section c3 being formed as Aa curved plate integral with the landside flange c. The section @tof the frog is an extension thereof which projects in a direction away from the landside and fromthe main plate c3 well across toward the inner end of the share.y This sectioncan be regarded as made up of a part 05 arranged. to extend forward across the transverse line between the share and the moldboard, and a part 06 arranged to be secured, if desired, to the moldboard.

The recess at 13 and the one at .18, above referred to, are preferably formed in or near this extended part c4 of the frog in order to advantageously apply the stresses which are intended to draw theshare to its seatsand hold it in place.

But in respect to these details, there can be vmodiication, as, for example, in the location of the fastening bolt 9, nearer to or farther from the landside.

ange) and the frog element has also been Y made of several parts which were separable, to meet one or another purpose. Hence, the term frog is herein used to indicate that main element of the plow body (whether made in one part or in two or more) which, as an entirety, effects the binding together of the other main elements and holding them in their-proper relative positions.

Thus, in Fig. 8, I have shown a modification of the plow body in which case the standard, the moldboard, the share and the fastening bolt, are in structure, conformation and relationship, identically the same as they are in the structure, shown in Figs. 1 to 7; and are, therefore, indicated by the same characters, a, b, (l, and f; and the share, here, having the same landside ange f', the same stud or abutment 6, and the same abutment at 8.

The frog here meets the same ends, as does that in Figs. 1 to 7, but is also intended for a supplemental purpose. The two sections c3 and c4 (which are formed integral in the construction shown in Figs. 1 to 7 and are well adapted for use in large plows) are, in the form presented in Fig. 8, made separately and then adjustably secured together so as to provide for iiexibility between the two main parts of the frog, wherebyv delicacy of fit kandtightness of union can be obtained when used with the several elements of a smaller plow; and they are indicated 1n Fig. 8 Iby of andc".V The part 08 is provided with a fastening device at '01 for securing to it the other part 09, of the frog. It also has a forward extending section 05 onfwhich is formed the camming edge of the shoulder at 14 for drawing the share inward; and has also the rear part c6. The latter is preferably, .but not necessarily, secured to ther moldboard by the bolt 4. The end part of this section o9 is slotted as at 011, and through the slot passes the bolt c1". Y Y

The lug 11 through whichthe fastening bolt 9 passes, serves as an abutment for the drawing and binding bolt 12.

If there should be .any slight misfitting of the parts (which is apt to be relatively magnified in the smaller plow bodies) the two sections of the frog, at 08 and o9, in this construction, willV provide accommodation for such irregularities. The two bolts at 4 and c are so alined that they furnish a rigid line, in respect to the moldboard and the landside, in relation to which theY abutment at 11 is held rigidly for imparting to the share the stresses necessary for drawing it upward, inward, and backward. At the same timethe part 09 of this frog can, without losing any of the effect of such alinement, adjust itself or be adjusted, as required, so that it will accommodate itself to very slight irregularities in theK fitting or Vseating of the landside of the-share to the frog and to the stationary part Vb of the landside. v

The forward projecting Vtoe part of the frog 1n thisV construction is similar to the vcorresponding part in Figs. 1 to 7, this toe part extending fromthe camming edge of the shoulder at 14 in Fig. 8 to the outer surface ofthe landside ange c of the frog, and tting between the landside flange -on the share and the abutment at 8. I Y

The frog in this construction, as in the other, extends over the stud or abutment 6J In both cases, the inclination of the' shoulder i at 7 1n the Yfrog insures that ythe landside moldboard 'at its lower landside corner, the lower portion a of the moldboaid extending below the transverse planes of't tlie'contact'l line. at f2.' .These matters insure not only a z )erfectl smooth continuous surface alon0V .Y e

the landsideface of the shareriiange f and of the'landside barb, but also -a strong snug fit between the nioldboard and the share,

abutment toloek the llandside portion ofthev share inproper position, and allowing it to be drawn farther toward its seat after a preliminary cont-act.

Thestud orv projection G is inserted in an aperture in the-flange f of the share and is preferably strengthened and locked: in position-by formingV it of round rod iron which is bent so as to be of U-sliape or staple shape, the other stud-like leg 6* also passing through the share flange, and both of the outer ends being upset andl seated in countei'sinks as shown in Fig. 6. The connecting'part 6C, while not essential', gives an elongated bearing4 for the lug element on the opposing` shoulder at 7l in thel recessoi` aperture Ga.

lVhat I claim. is:

1. The combination of the nioldboard, .the f land side, the detachableshare with aA land side flange, the stud G, and the abutment S,

the vfrog having the shoulder '7 engaging vertically with said stud the extensionprojectF ing away from the land side and. the abutment 8 and formed with the shoulder' idf en`v gaging with the said abutment on the share,

and the drawing and-locking bolt pivotal'ly connected to the share and provided with ai nut engaging; with an abutment whereby the said boltcan, under thefcainnnng action of the stud 6 andy abutment 8,.be caused to draw' the sha-re longitudinally of 'thc land side and transversely of the moldboard and lockA the stud 6 and shoulder E in engagement and lock the shoulder la andabutment 8 in nioldboard and? to `the land: side andV having the section c4 with ai shoulder 14C' engaging with the abutment 8 to draw thestud 6 into* the vertical planes of the land side of thel frog and a tightening bolt pivotally connected to the share'l and means'l carriedby the frog cooperating with the bolt to cause.

the share to abut against the mold boardgfas set forth.

3. In a plow body, the' combination of the i land side, the moldboa-rd having. an entension a projecting forward of the land side, the share having the land side vflaiige'f withf the rear end part f2 fitted:v to the forward end of the land side and under the projecting part of the moldboard and havingr the studl 6, the frog havingv the shoulder 7, 7, and means interposed between the share and the moldboard for drawing the share backward to the inoldboard and to the land side.

4L. In af plow body,..tlie conibinationof the nioldboard, the landfsideliaving the upward and forward inclined front'V edgey ZJ", the de tachableshai-'e havingthe'land side flange f with tli'eupward and forward inclined endy edge f2, and the stud 6, a froghaving a shoulder 7, and means for draw-ingfthe share backward toward the inoldboard: and the land side,fsubstantially as=set1 forth.

5. The combination of the moldboard, the land side,l ther share lia-'ving thelandl side flange, the frog detachablylocked vertically to thesharev atxtheland side and formed* in two sections detachably connected together, 1 one section being locked vertically to the'V share as aforesaid and the other section:Y

locked horizontally to theshare, the bolt pivoted to the share and means carriedI by the 'I frogl and cooperating with the bolt to draw Copies-of this patent'may be obtained for five` cents' each; byv addressing the Commissioner of? Stfa-tents,r

Washington, I). C.

Certcate of Correction.

It is hereby certified that in Letters Patent No. 1,306,705, granted J une 17, 1919, upon t-he application ot Charles H. Melvin, of Moline, Illinois, for. an improvement in Plows, errors appear in the printed specification requiring` correction as Jfollows: Page 1, line 66, for the Word share, first occurrence, read frog; same page, lines T5 and 76, strike out the Words by a pair of; page 2, line 2, after the Word bolt second occurrence, insert the Word poozally; same page, line 87, after the Word loosening insert the Words necessary; saine page, line S9, after the comma insert the words 07' on. the end of the share itself; same page, line 1111,'

after the Comma insert the words previously loosened); page 3, line 92, for the letter` 0 read 01; same page, line'97, beginning with the word At strike out all to and including the word landslide, line 105; and that the said Letters Patent should be read with these corrections therein that the same may y conform to the record of the case in the Patent Office.

Signed and sealed this 29th day ofy May, A. D., 1923.

[SEAL] KARL FENNING,

Acting Commissioner 0 f Paten/ts.

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