US1451560A - Plowbrace - Google Patents

Description

'1,451,560 H. C. WELKER Apr. 10, 1923 PLOWBRAGE original Filed Mar. 2:3, 1920 o; K o2 Q l 02 "D a Si; 3- f ll m ,If m "3 ,jl/l

w1 ,S3 ,25, V /Il'll y i am f E ,MV1

l ll u Q L Q2 :al E No a N 'Q w 5 'lnUafi/{Urg Patented Apr. 10, 1923. 1,451,560 umrrofsrarns PATENT eric.

HENRY o. WELKER, or MINNEAPOLIS, MINNESOTA, ASSIGNOn To nnnrena COMPANY,

Y-Or MOLINE, ILLINOIS, A CORPORATION or ILLINOIS.

PLOWBRACE.

Application lred March 23, 1920, Serial No. 368,059. Renewed September 11, 1922. Serial ITO. 587,565. To @ZZ whom t may concern Be it known thatI, HENRY C. IVELKER, a citizen of the United States, residing at Minneapolis, in theA county of Hennepin and State oflMinnesota, have invented certain new and useiul Improvements in Plowbraces, of whch the following is a Specification, reference being had therein to the accompanying drawi g.

a rigid frame for 8, 9 and 10.

It is usual to mount plows of this type on wheels, and 1 7 indicates the 'front furrow lwheel mounted on a cranked axle 18 which is secured to the plov.T frame byfbrackets 19 and attached to the beams 5 and 6. 21 is a lever for adjusting the front furrow wheel 17 in a usual andwell known way. 22 incarrying the plow bodies central portionby means of This invention relates to gang plows and has to do particularly with meansfor bracing the rearward portions of the beams that carry the soil working bodies. y y

In plows of the class to which this inven- `tion relates the several beams are joined together to forma rigid, Substantial frame for carrying the plow' bodies in their proper fixed relationship and it is an object of the invention fto provide means for bracing the rear portionsof the beams so that when the plow strikes obstructions, Such as stones, stumps or roots, the shocks and strains are more equally divided between the bea-ms and their bracing members and the springing of the beams and braces or 1shearing'of the bolts Or pins uniting the beam and braces is prevente y In the accompanying drawing presenting an embodiment of` the invention, a three beam plow is shown but I do not *restrict myselfto this number of beams and plow bodies for the invention is readily adaptable to a plow having a larger number of beams.

Figure 1 is the plan view of a gang provided with my bracing means. f

Figure 2 is a sectional view on a line a-a ofFigure 1, and

Figure 3 is a detail view method of attaching the an `intermediaJJe beam.

Referring to the drawings 5, 6 and 7 indicate plow beams carrying plow bodies 8, 9 and 10. The beams 5 and 6 are connected together at the front by means of braces 11 and 12, and are also connected near their a brace 13 and by a brace 14. portion is con- 6 by a laterally exshowing a bracing means to near their rearward portion The beam 7 near its front nected with the beam tending bracket like brace 15 and at its rearward portion is also connected with the beam -6 by a brace 16. It will thus be seen the beams 5, 6 and 7, are connected together by the braces ll, .12, 1.3, 14, 15 and 16 to form dicates the landwheel mounted on a cranked axle 23 whichv is secured to the plow frame by brackets 24 and 25 attached to the brace 15 andthe beam 5 respectively. Thelandwheel 22'can be adjusted by means cfa lever 26 in the usual and well known way. 27 indicates the rear furrow wheel mounted on an axle 28 journaledv in the vertically positioned sleeve 29, which is attached to the beam 7 by straps 30-30.

In plows of this-type when any of the plow bodies strike an obstruction severe strain is transmitted to the'beams and bracing members and toxmore nearly equalize and properly distribute this strain amember 31 is provided. The member 31 is connected to the intermediate beam 6 by means of a bolt 32, a bracket 33 and a bolt 34. The end portions of the member 31 rest on the brace 14 and the brace 16 respectively and are formed in such a manner that in conjunction wth. the bolt 32 the member 31 is prevented from moving bodily laterally of the braces 14 and 16. The end parts of this brace member, however, are not rigidly fastened to any of the parts, but are supported loosely, and ifsuflicient stress is exerted by Vthe bolt upon the centralpart a slightmove- `ment laterally of the end parts will be caused.

.The member 31 is preferably formed of metal U-shaped in cross section as shown in Figure 3. This form of brace readily lends itself to the purpose and at the same time is light, strong and economical of manufacture.

By making the member 31 in the form of an archl and connecting its arched portion with the beam 6 and having its end ortions resting on the braces 14 and 16, the member 31 forms a supplemental vertically acting brace which can be made of lighter material than if it were made straightt By arching it provision is made for having an ample space above the planes ofthe beams to permit such slight down-bending oi' the central part ot the brace asoccurs when the strain is exerted by the bolt 32.

1t is apparent )that by providing a brace similar to that at 3l it ycan be caused to act in such way as to distribute the strains and stresses throughout the structure and hold the beams in desired relation to horizontal pla ies. ln case any relative displacement of the parts should occur after the plow has been in use, tightness can be restored and a continuing strain exerted by means oit the bolt at 32.

Vhat l claim is- 1. ln a plow trame, the combination of a plurality oi' spaced beams connected together at the front, means connecting the rear portions of' the beams. and a transversely positioned member connected with the rearward port-ion of an intermediate beam and having its ends supported by the means connecting the rear portions ot the beams.

2. In a plow trame, the combination of a plurality of spaced beams connected together at the front, means connecting the rear portion of the beams, and a transversely positioned member connected with the rearward portion ot' an intermediate beam and having its ends connected with the rear portions of the side beams to resist movement of either of the .side beams independently of the intermediate beam.

3. In a plow trame, the combination of a plurality of spaced beams connected together at the front, means connecting the rear portions of the beams, and a transversely positioned arched member connected in its arched portion to the rearward. portion of an intermediate beam, the ends of the arched member connected with the rear kportions of the side beams to resist movement of either of the side beams independently of the intermediate beam to which the arched member is connected.

4f. ln a plow frame, thecombination of a plurality of spaced beams connected to- -proximately gether at the front, means connecting the rear portions of the beams and a transversely positioned member connected with the rearward portion of an intermediate beam, the ends oi' the transverse member supported by the means connecting the rear portions of the said beams, the ends of the said transverse member forming means to prevent lateral movement .of the transverse member in relation to the means connecting the rearward portions of the beams.

5. ln a vplow frame, the combination of a plurality of spaced beams connected 'together at the front, means connecting the rear portions of the beams, and a transversely vpositioned arched member connected with lthe rearward portion of an internisdiate beam, the lends `of the arched member supported by the means connnecting the rear portions of said beams, the arched niember 'forming a .truss rto prevent independent movement of the beams. f

6. The combination of the plow trame having side beams and an intermediate beam, and `devices lconnecting the rear portions of said beams, .of ,means supplemental to said connecting devices adapted to exert stress vertically in ,one direction, through laterally movable elements, upon the rear portions of the side beams and to exert stress vertically in the opposite direction upon the intermediate beam.

7. The combination with the plow frame having a plurality of laterally spaced, ap-

parallel beams `joined together by connecting devices positioned on transverse lines, of devices to retain all ot the beams in common horizontal planes comprising a transversely disposed member khaving loosely held end elements normally movable laterally and adapted to exert downward stress through said end elements upon the beams, respectively, at the sides of the central, vertical, longitudinal plane of the frame and to exert opposing upward stress upon the central part of the trame. HENRY C. WELKER.

Images