US1812186A - Snowplow - Google Patents

Description

June 30, 1931. 5, W000 1,812,186

SNOWPLOW Filed April 4, 1950 INVENTOR L60 E7. Wooob,

TTORNEY Patented June 30', 1931 emit-D .s A Es;

Application filed April 4,

My invention relates to improvements in snow removers, and the object of my improvement is to supply particularly for highway use, a snow plowof an improved andfefficient shape for forward propulsion in gathering snow anddelivering it obliquely laterallyto a distance or beyond the road limits in dumping it to clear the way for traflic. Another improvement comprises mechanical means 10 for vertically adjusting the plow with self'- locking elements included, and a further'im-- provement is in providing supporting run ners for the plow when in use, to be tiltable in securing said vertical -ad ustments.

15 I have accomplished the above objects the means which are hereinafter described and claimed, and which are illustrated 1n the,

My inventlon is n'otrestri'cted tothe pre-,

' cise'construc'tion and arrangementof parts herein-shown anddescrlbed, nor to the various details thereof, as the same may be moth fied or rearranged in. variousparticulars without departing from the spirit and scope of myinvention, one practical embodiment of which has been herein illustrated and de-. scribed without attempting to show allof the various forms and modifications in which my invention might be embodied.

'front part ofa motor truck17, whose mecha -nisms and some other parts have beenretional. or diagrammatic elevation of said coacting devices. I i

The plow "is provided with a forwardly forwardly curved part9 whose concave for ward angular edge has a vertical forwardly presented web-plate 1O presenting a longi can. tudinal dlvisional wall at that location. The

. ,LEo E. woon, or, cnimoiabspo, flown-1 moved for clearness and to present a convene e es 'tfy aaa e. its. nstead a [preferably fsharp ened: margins 4 ito .thusbet .ter cutiinto crustsof drifts.':--

The side plates} are. laterally wardly into side walls 7 whose iforwardg; verticallyldisposededges8 maybe sIightIyFbent out of lineas shown in'Figsi L and 3, "orimay be continuous in one direction if pre ferred. I These edges aid in gathering snowlinto thef interspaces of the side walls7'and the medial wall -10 thus g providinga-a" curvatebottom trough on each side directed obliquely lat 1 erally and rearwardly. pastithe forward part c of the followingtruck 17 asbestindicated' in Fig. 2.

"are curved upwardly at '13 and "pivotally mounted at. 14 on the rear. frame. part 18 of the truck, the forward tends.- of the rlinners The plow l may whenlowere'd to operate. ing position be supported on small 1 carrying B1711 being bentrvertically upward and .fas

tened: rigidly ztothe'g rear faces of the-e side walls 7 ofmthe plowzf'libetween-the truck wheelsp r A bracket on the rearapart ofthe .plow, comprising paral;

lel vvertical posts 15* connected acrossbybars l 34g and 35 and the latter are gconnectedgb vertical medial bar 36,-:as shown in Figr {5' Referring now to said Figs. 1 'andl2,rthe numeral: 24.- denotes a: rotatable f transverse shaft mounted in the frame of the truck- 17, y V

and c"'a .rryi'ngar'wormwheelv 26; also: a trans. M g H versely spaced pair*oflikesprpcket-wheels23g My snow'plow is shown as attached to the the:.worm-wheel intermeshing with a worm 29.401151 a' worm-shaft- 27 havin'g' a hand-wheel .28. v Another: and idler-shaft" 20 is mounted inzibracketsr at the .front :of the truck at1 l9- and carries 6 a: pair of isprooket wheels 21, in i a chain :of the open link type capable of lateral sw nging T has one end connected "to f a staple ;32f at the top of theiplow-bar 15,1;is

carried thence, under an idler :sprocketp2l' and; a 'w dlyf'reeved over 1 Sprocket 23 whence, itis directed forwardlyove n; dj

cent grooved sheave 22, thence forwardly and downwardly and including a tension spring 31 to be there connected to a staple or other fastening means 33 on the lower part of said bar 15. The chain is thus kept under tension.

To lift the plow 1 clear of street or other obstructions while traveling to or from a district to be cleared of snow, the operator on the truck 17 may turn the hand-wheel 28 appropriately to cause the worm 29 to rotate the worm-wheel 26 and shaft 24:,with its sprockets 23. The chains 30 are thus moved to lift the plow while causing its runners 12 to to remove snow in their path.

The speed of the truck and plow may be regulatedat will to handle snow of different consistencies, and ordinarily are driven at a considerable rate in order to cause gathered snow to mount the side troughs 6 where it is slightly compressed because of the rearward convergence of the troughs, so that the traveling load is shot obliquely rearwardly to one side of a road with momentum enough to deposit it on the right of way without the road surface, at least on one side. If the road is too wide to'cause the snow to be shot to both sides in clearingthe road, the apparatus may return along oneside of the way after clearing the other side part thereof. The medial wall 10 serves in completing the division between such side troughsand in the diversion of snow into the troughs, especially while penetrating high drifts.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is: V

A snow plow, a vehicle to which the plow is connected for vertical adjustments, and mechanism mounted on said vehicle and connected to said plow for vertically adjusting it, comprising a rotatable transverse shaft on the vehicle having a worm-wheel thereon, aworm-shaft meshing therewith, a parallel rotatable shaft on the vehicle, said shafts having sprocket-wheels on their outer ends and the second-mentioned shaft having grooved sheaves thereon within its pair of sprocket-wheels, a pair of like chains each having its ends connected respectively to an upper and lower part of the plow on one side thereof, the lower reach of the chain including an elastic element, one reach of each chain passing about both sprocket-wheels on its i no side, thence around the sheaveon that side.

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