US1704016A - Snowplow - Google Patents

Description

1 S N O W P L OW filen/'y (I P/zy, 'INVENTom ATToRNEYs.

March 5, 1929. H P|L$ 1,704-,016

SNOWPLOW Filed June 14, 1927 3 Sheets-Sheet 3 45 i Q f IQ IQ.

/fe/z/y' PMS-l INVENToR. har ed' I i I WW I ATTORNEYS Patented Mar. 5, 1929.

uiTED srArss;

PATENT orrice;

* HENRY J. rrLs, on wnsxisn, MINNnsoTA.

sNowPLow. i

Application filed .Tune 14, 1927. Serial No; 198,802.

with the-snow and the direction of travel of the snowplow. I

Another object of the inventionis the con* struction and arrangement of the novel guiding structure whereby the scraper is held in the proper direction of travel at all times irrespective of the i direction of pull of the horses or tractor or other power apparatus connected to the plow.

Besides the above, my invention is distingtuished iiiV the use of a pair of runners one vertically adjustable for controlling the action of the scraper, the other horizontally adjustable for controlling the direction of travel of the plow.

With these and other objects in view, the inf vention will be better underst'ood froin the following detailed description taken incon-1 4nection with the accompanying drawings,

wherein: I Figure 1 is a top planview offthe snow plow, i

Figure 2 is a side elevation,

vFigure 3 is a front elevation,--

Figure 4 is a cross sectional view7 M v Figure 5 is a detailedperspective view of a portion of the scraper and its associated parts, i

Figure 6 is a detailed cross sectional view of the adjustable runner and its associated parts. 1 j

4Azgfain referring to the drawings illustrating one of the many constructions of my invcntion, the numeral 1 designates a platform.

shown in this'particular as of triangular formation and construoted of a pluralityL of beanis, one heremafter known as the main beam and designated by the numeral 2 and eX-y tending in the direction oftravel' of the snow) plow and directly secured to a laterally eX- tending inclined beain 3. Mounted onV the beanis are the usual floor boards 4 for supporting the operator or weights if found ad- Vvantageous to increase the weight of the snow plow.

The nuineral 5 designates the scraper or mould board of the snow plow and it will be noted that this scrapcr is of curved formation in cross section aiid is supported to extend at an angle to the malinbeam 2, and for the purpose of supporting the scraper in such an in.- clined 'position in a very substantial manner I provide the beam 3 and a plurality vof bracket-stl efectively riveted to the scraper and secured to the platfornil.v It will be i noted that the scraping edge 7 of the sera-per parallelsi the ground and for the purpose of adjustin-g7 the seraping edge 7 relative to the ground: rfor controllingithe action of' the scraper upon 'the snow, I provide anadjust-- able run-ner or shoe 8 which is not only capable of changing the position of the scraper,

but supports the platforin'for sliding niovement .over the snow. This adjustable runner 8 is ftexibly and rvadjustably connected to the platform- Lto permit vertical adjustments thereof and to accomplish this desired result, i

I have shown arear link 9 Lpivotally connecting'y the runner tothe platform and a forward linlr 10 also pi-votally conneeting the runner to the platform. These links are so connected and arran-ged that'the runner is e-ifectively Vso Securedl against horizontal displaceincnt but I are adjustable to allow the runner to have its required .vertical adj ustinents by the m anipulation of my improved controlv mechanism i designated in its entirety by thenumeral 11.

This control ymechanism consistsof ay slide 12 havinga pivotal connection 13 withL the shoe and also an adjustable pivotal connection ltwvith the control lever 15.' This control lever 15 has' a flexible connection 16 With the i inc-line beain 3 of the platform, sothat upon raisingj and lower-ing the lever 15 froin the connection 16 the slide 12 will be rnisedvand lowered and for the purpose of guiding such inoveinents of theslide 12, I have shown the latterslidably mounted in an opening 17 in the platform; The lever 15 hasa c'ooperativev relation with auvertically extending ratchet bar 18, the teeth of which are so disposed as to be selectively engaged bythe lever 15 in the .adjustinent tliereoffor effectively and rigidly supporting the shoe in any one of its adjustable positions. 1 An end plate 19 is Secured to the forward Iend of the scraper so as to pre rition of travel of the lever.

nated in its entirety by the numeral 20. This guiding device or structure 20 includes the heretofore mentioned beam 2 and an adjustable steering runner 21 and a shoe 22, the latter secured to the under surface of the rear portion of the beam 2 and including in -its construction a downwardly extending rib 23 for penetrating engagement With the snoW or other material in contact therewith. A very important feature of my invention is the construction and design of the steering runner 21, xvhereby the snow vploW may be effectively steered in its travel so as to assure the proper position of travel of the snoW ploW irrespective of siight change in the direction of pull thereofi This steering runner 21 also includes a doivnivardly projecting rib 24 for penetrating the 'snow or other material coming in contact therewith to offer a certain resistance to the lateral displacement of the steering runner and this resistance is relied on to hold the ploiv in its proper direction of travel. A clevis 25 forms a component part of the steering runner and this clevis and runner are directly secured together and pivotally secured to the beam by means of the pivot bolt 2G.

Due to the 'angular relation of the scraper and the main beam 2, it Will be appreciated that in the travel of the snoiv plon1 in a direction corresponding to the direction of the eX- tension of the beam 2, the snoW Will be effectively accumulated by the scraper for discharge from the outer end portion of the scraper Which outer end portion is disposed rearnr'ardly of the snoW plow. It is of great advantage in the proper removal of snoW accumulations to vary the action of the scraper upon the snoW Which the operator may effectively accomplish by adjusting the lever 15, Which causes the raising and lower*- ing of the runner 8, depending upon the direc- VVhen the runner has been properly adjusted to bring about the most effective engagement between the scraper and the snoW, the lever is throWn into an interlocking engagement With the ratchet 'bar 18 and thus'the parts are eifectively locked in their proper adjusted positions, but capable of quick adj ustment should occasion arise. In the travel of the snow ploW in engagement With the snoW there is a tendency of the snow plon' to move out of its proper direction of travel due to the side thrust of the snoW against the scraper and to overcome this effect. and assure the proper travel of the snoW the steering runner 21 and the shoe 22 are arranged in alinement corresponding to the direction of travel of the snoW ploW so that the ribs thereof penetrating the snoW Will offer a certain amount of resistance to the side other constructions of adjusting mechanisms maj7 be used for raising and lon'ering the scraper relative to the ground, and besides i the steering device may be constructed in various other manners than illustrated and therefore, I do not desire to be limited in any manner except as set forth in the following claims.

lVhat I claim is:

l. A snow ploxv comprising a platform including a main beam extending in adirection of travel of the snoiv plon' and in contact With the snoW, a scraper supported at an incline by said platform With relation to said main beam, an adjustable runner connected under said platform to be adjusted vertically to control the position of the scraper relative to the ground, and means for adjusting said runner, said means consisting of a slide pivoted to the runner and slidably mounted in the platform and an adjustable lever having a pivotal connection With said slide.

2. A snow ploiv comprising a substantially triangular-shaped platform including a main beam extending in the direction of travel of the snow plow, a scraper of curved formation in cross section and supported by the platform to extend at an angle to said main beain, an adjustable runner having a Swinging connection both With the main beam and With said scraper, a slide connect-ed to the runner and mounted in said platform, a lever swingingly connected to the platform and pivotally connected to said slide and a rack bar supported by the platform and engageable With said lever for holding the latter in any one of its adjusted positions.

3. A snoW plow comprising a substantially triangular-shaped platform including a main beam extending in the direction of travel of j the snow plow, a scraper of curved formation in cross section and supported by the platform to extend at an angle to said main beam1 an adjustable runner having a swinging connection both With the main beam and With said scraper, a slide connected to the runner and mounted in said platform, a lever sWin ingly connected to the platform and' pivotally connected to said slide and a rack bar supported byV the platform and engageable With said lever for holding the latteir in any one of its adjusted positions, a shoe supported by the rear portion of the main beam and a steer'- ing runner pivotally supported by the frontv end of the main beam.

In testimony Whereof I afiix my signature.

i HENRY J. PILS.

Images