US1773255A - Snowplow attachment for tractors - Google Patents

Description

Aug. 19, 1930' J. L. BECKER 1,773,255

SNOW PLOW ATTACHMENT FOR TRACTORS Filed Dec. 10, 1928 2 Sheets-Sheet 1 r I Si TF5. 1 T 1?? l N I I w v 0 5213: I Q 1h 'l h L9 4? W1 E J INVENTOR Joseph L. B c/rer' ATTORNEY Aug. 19, 1930. J. L. BECKER 1,773,255 SNOW PLOW ATTACHMENT FOR TRACTORS Filed Dec. 10, 1928 2 Sheets-Sheet 2 INVENTOR Jose :6 L. 56 fer BY Z AT/TORNEY Patented Aug. 19, 1930 UNITED STATES JOSEPH L. BECKER, OF STILLWATER, MINNESOTA SNOWPLOW ATTACHMENT FOR TRACTORS Application filed December 10, 1928. Serial No. 324,894.

This invention relates to attachmentsfor tractors and the primary object is to provide a practical, eflicient and comparatively simple snow-plow, and means for conveniently and effectively attaching it to the tractor whereby it may be pushed along to laterally convey the snow from the road, sidewalk, or other surface to be cleared. A further object is to so construct the connection between the plow and the tractor that the plow, while being pushed, will have suflicient freedom for vertical and tilting action over sidewalk and road irregularities, yet will not have a tendency, when meeting with unusual resistance, 1 to buckle up or cause an upward tilt of the fore end of the tractor. These and more spe eific objects will be disclosed in the course of the following specification, reference being had to the accompanying drawings, in which Fig.1 is a side elevation of my improved snow-plow attachment, showing it as applied to a cormnon and well known type of tractor. Fig. 2 is a plan view of the device as seen when detached from the tractor.

Fig 3 is a sectional elevation on the line 33 in Fig. 2.

Fig. 4 is a sectional elevation on the line 44 in Fig. 2.

Referring to the drawings more particularly and by reference characters, A designates any common and well known type of tractor. The snow plow illustrated is of the type wherein an angularly disposed single blade 5 is provided with a side board or longitudinally disposed plate 6, although the V- type of plow, which throws the snow to both sides may of course be used with the same effect as far as the present invention is concerned. The members 5 and 6 are re-enforced by angle irons 7, and the lower edge of the blade is provided with an adjustable wear plate 8, having angularly disposed slots 9 engaged by bolts 10 secured in the blade 5.

Hence, as the plate 8 wears away it may be moved both downwardly and forwardly to properly compensate for such wear. The lower edge of the side plate 6 is provided with shoes 11 that may be replaced when worn away. At its front end the plow 5+6 is provided with a rigid, upwardly curved arm 12, which is so designed and arranged that it will raise the point of the plow when it approaches obstructions such as curbs, manholes, etc., thus permitting the plow to properly ride over such obstructions.

Rigidly connecting the plow members 5 and 6 is a transversely disposed beam 13, the right end of which is provided with a spring acting brace 14 carrying a wear shoe 15 that supplements the shoes 11 and effects a sli htly yieldable ground support for the bla e 5.

The members 56 are further rigidly connected by a pair of vertically spaced, transversely disposed cross bars 16 and 17, connected by spaced pairs of vertical guide rods or braces 18 and 19. Operative in the two rectangular openings formed by the members 16l9, are two push bars 20 and 21, each of which is formed by two angle irons secured together with overlapped flanges. The forward ends of the push bars 20, 21 are pivotally secured, as at 22, to the beam 13, and at their rear ends are pivoted, as at 23, to an angle plate or beam 24 that bolts up, under the front end of the tractor.

It will be noted that the beams 20 are slightly inclined from the horizontal, and

the tractor to crawl over the plow should the latter be stopped, even though the construction disclosed permits an ample floating action of the plow with respect to the tractor. Thus, when slight road irregularities are met with the plow can tilt on the centers 22 when passing over the same; and, irregularities that will raise either the plow or the tree tor, with respect to the other, will be ermitted by the pivots 23. The guide mem ers 18 and 19 retain the push bars, and consequently the plow, in their proper longitudinal positions, and the cross bars 16, 17 limit the pivoting action of the plow and beams 2021, with respect to each other, yet there is sufficient freedom of action between the various parts to also permit a slight transverse tilting of the plow with respect to the tractor.

To lift the plow out of engagement with the road or walk I provide the connector bracket 24 with a standard 25 to the upper end of which is ivotally secured a lever 26 (see Fig. 1). The front end of this lever is connected b suitable means, such as the link 27, to the p ow, and the rear end is adapted, when pulled down, to engage under a hook 28 on the tractor and preferably near the operators station. When thus lifted the low is of course raised on the pivots 23, a ter the push bars first reach the limit of movement permitted between the cross bars 1617.

It is understood that suitable modifications may be made in the general design and structural details of the invention as herein shown, provided however, that said modifications come within the spirit and scope of the appended claims.

Having now therefore fully shown and described my invention what I claim to be new and desire to protect by Letters Patent is:

I. A snow-plow attachment for a tractor comprising a pair of converging plow forming plate members, a transverse beam connectln said members, a pair of push bars ivote to the beam and extending rearwardy for connection to the tractor, and means adapted to contact with the ush bars for limiting the swinging action 0 the plow with respect to the ush bars.

2. A snow-p low attachment for a tractor comprisin a plow adapted tobe propelled in advance 0 the tractor, a push device pivotal-- 1y connected at its front end to the plow, and pivotally connected at its rear end to the tractor, and means carried by the plow for contact above and under the push device for limiting the pivot action of the plow with respect to the push device.

3. LA. snow-plow fortractors or the like comprisin an angularly dis sed snow removal bla e, a pear of push ars extendin rearwardly from and pivotally connecte with respect to the blade, means carried solely by the plow so as to be independent of any tractor connection for limitin down movement of the bars with respect to the blade, and means for attachingthe bars to a tractor.

4. A snow plow attachment for a tractor comprising a pair of converging plow-forming plate members, push bars pivotally connected, at their front ends, to the plow, and adapted to be secured at their rear ends to a tractor, and a pair of cross bars connecting the plates, one above and one below the push bars, to limit the vertical action of the bars with respect to the plow.

5; A snow-plow attachment for a tractor comprising a pair of converging plow-forming plate members, push bars pivotally com the up and nected, at their front ends, to the plow, and adapted to be secured at their rear ends to a tractor, and a pair of cross bars connecting the plates, one above and one below the ush bars, to limit the vertical action of the ars with respect to the plow, and means secured to said crossbars for vertically guiding the push bars.

6. A snow-plow comprisin a side plate and an angularly disposed bla e joined therewith, wear shoes at the lower edge of the plate, and a wear shoe yieldably mounted adacent the blade tending to flexibly support the same.

In testimony whereof I afiix my si nature.

JOSEPH L. Backus.

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