US1906718A - Snowplow - Google Patents

Description

y 2, 1933' J. R: RITCHIE 1,906,718

SNOWPLOW Filed May-2, 1951 2 Sheets-Sheet 1 IN V EN TOR.

ATTORNEYS.

J. R. RITCHIE May 2, 1933.

SNOWPLOW Filed May 2 1931 INVENTOR. c/Ul/N 7?. 71372 h'e ATTORNEYS.

Patented May 2, 1933- JoHN RITCHIE, b1 1 MIN'NEAi-OIiS; "Mm-Nielsen I: 5

are inow l'iu'gely used to clear the highwa s of snow, The "snow is usualiiy-'?cliseliiuf gecl to oneside or theb'ther of" the road by -the plow. Such-plows ai'e'nowusuallypropelled by truck 01' tractor. "It is desirable t'o 'have *a plow which is easily operated; and \v hieh "will effectively handle the snow Whether it is distributed uniformly or iin drifts. i It is 5 also desirable to have :aplow with means -wherbytl1e snow ean be'deliverefil to onesille I ofthe road 'or th iother. I 3v I It is an'objeet of'tliis invention,ithereiore,

to provide 'a, snow plow ha-vinga "discharge I thnteyzmcl effective means forengaging the snow and directing the same to the chute. i

' It is afurther-objectof the inventiont'o provide-e mold looerclyan'd propelling meansfor dire'eting snowto' the. ehute; "and wherein the chute iv'illfbe oscillatzihle seas to direct the snow to eneside-oi' the other-bf the? plow. I A 1 "It is e-nether objeet 6f the invewitien topmw ide a" snow p1ow-mich will include a mold board; a Chute inthe rearef't-he moldfboard,

propelling means for directing f snow to the 'ehnte5'a1id'w I V r lilting the chute and prop'ell-m'g means for directing the, ehfite 'towa 'ds one side or the provide a snow plow wllich' will 'inclilde 3 a 'board, "spaced propellers for-flireceing-snow Z 40 to the chute; "and :will' also inelude conve ing extending reMWeiidlly from s aid" b3 ades aiid having an opening therethro1'1gh,- a chute o in the {rear of said opening, means 1 iii the rem 01f sa d-opening fordire ting snowto 19211." (sonar 534,50Qj'1 the chute, the chutehavifi af-raine pfojeictn'aled in said fr amgendwill'also inelude'pro-' provide" a plow as set forth in the preceding paragraph; in which the chute together with.

- said frame and propellers Willbe oscillatable aboflt 'a-n axis extending forwardly and rearit is still a' fu'rther object of the 'inveritio'n i Tear-Wardly extending 'fneld *board, it" ehute in the rear of the mold boz'ird; prq ellr s "roitiltable a bout a transverse :lXis ip from ef, saidfchute, and a shaft on which 'sai'd propellet's are'niounted; and will also include means 7 of said snow plow, j and "means fOI oscillating 'said I chute: and propellefs 'eiteliding to tl e iear Gf-saiclplQW. I H

The se and otherobjects m cladyamages-of the iznvei'ition will be "fully set fe'i'th in t'he following description ha-(1e in connection with the =acc0nipanying clra'yvingsfin iwhich I like "referencecharacters refer to; similar parts th rOugho'utthe several vi'ewsg and in WhiUlii Figi l is a view iii'front' el'evation Offthe p1 0w;i e H "8 0 Fi'gfiQ is-"e "view in sicle elevation; certain arts being br oken away encl others shown -inverticalsetion ,f Fi'g.- '3 is a section te-ken' on lifief'33-* of f e Fig. 1, as'iiidieateol by the ar w"; 7

Fi'gA is a'section taken bn"line"4+"4 of Fig; il es indicatedtythe arfiow; 1 5 i i. F-i'g'. 5 is a top plan viewgeertaifl patts being br Qken" away and others shown in hori zoiitl seiztiem ancl 5 Fig.f-'6; is a View in' plow. Referring to thefdrewinfg's a plow is shown rear elevation of the "'having ahottom membef 10 'i i'theff oi'hi of 'a bar 'whiehextiends transversely of the plow at the bottom thereof end in enge'gemelit with "the" supporting surface; "I Me'niberilO i issub, stahtiall'yfhorizontel' et its" bottom 1 has downwardly inelinedtop surface, the frlo f said member thus tapering to an edge.

nt i A I blade 11 preferably of hard steel is secured to the top surface of member 10 at its front por tion, extending somewhat beyond said edge. Member 11 is provided with a comparatively sharp front edge and its rear end is beveled toward the top surface of member 10. Member 10 at spaced points has upwardly and rearwardly projecting ears 1000 having apertures 10?) therethrough adapted to receive means for pushing said plow. Blades 12 extend upwardly and somewhat forwardly and outwardly as seen in Figs. 1 and 2, said blades being disposed at the ends of member 10 and having the form of flat bars having substantially sharp front edges as shown in Fig. 3, and also having beveled or tapered rear edges. The blades 12 are secured by bolting or otherwise at their inner sides to the outer side of a mold boardor plate 13. Thetop edge 13a of the plate 13 extends between the blades 12 at a considerable height above member 10 and the blade or mold board 13 slopes rearwardly from its top edge, the blades 12 and member 10, being secured to member 10 at its bottom. The mold board 13 extends rearwardly to an opening 13?) defined by the edge 130, which opening is circular in form. A flange 13d extends about the opening 136 to points inside of the ears 10?) as shown in Fig. 1, said flange being secured to bar 10. Flange 1301 is cylindrical and the inner side thereof is disposed a short distance outwardly of the edge 130 to thus form a right-angled shoulder or recess in the rear of member 13. This recess forms a cylindrical guideway and the cylindrical portion 14a of a chute and frame member 14 is disposed therein. An arcuate groove 100 is formed in the member 10 forming a continuation of the guideway in flange 13d and portion 14a also extends into this groove. The chute member 14 comprises the substan tially rectangular chute portion proper 14?) which extends upwardly, and the rear side of which is inclined outwardly. The sides 140 of the chute portion 14?) are substantially vertical and these, as well as the rear side 14d merge into a semi-spherical portion 14c which in turn extends to the portion 14a. The portion 14a at either side of the chute has a rear vertical edge 14 and this is partly embraced or overlapped by a flange portion 136 on the member 13, which flange portion is disposed at either side of the member 13 as shown in Fig. 6. The portion 14a for a portion of its circumference is provided with gear teeth 14g and a pinion 15 meshes with said teeth, the same having trunnions 15a journaled in the member 13 and in a flange bracket 13f, one of said trunnions or the shaft of pinion 15 having secured thereto one member 16 of a universal joint, the other member 17 of which is secured to arearwardly extending shaft 1.8 which will extend to the truck or tractor driving the plow, and will be provided with a crank r hand W eel so as to be turned by the operator. Flange 13d is cut-away adjacent the pinion 15. The chute 14?) has a central vertical partition 14h which divides some distance below the top of the chute into plates 14m forming a chamber 1471, open at its rear. A frame 14d having sides substantially alined with plates 14m extends forwardly from portion 14a through opening 13?) in partly cylindrical form as shown in Fig. 2, said frame having its sides converging some distance from its edge to form a substantially sharp or V-shaped peripheral portion 14;). This frame portion 14d has openings 1470 in its spaced sides. The brackets 19 are provided, each having a cylindrical flange extending into the openings 147:: and having circumferential flanges overlying the sides of the frame 142' and secured thereto by the headed and nutted bolts 20. The brackets 19 extend outwardly at either side of the frame 142' and are provided with hubs in which are disposed Timken bearings 21 in which is journaled a shaft 22.

. Shaft 22 has a beveled gear 23 secured thereto between said bearings, with which meshes a beveled pinion 24 secured to a shaft 25 journaled in a web extending across frame 142' and in a flange formed on one of the brackets 19. One member 26 of a friction cone clutch is secured to shaft 25 and projects rearwardly in frame portion 1411. Another shaft 27 is journaled in frame 141' and has splined thereto the cone member 28 of said friction cone clutch said member having a groove therein in which are'disposed portions of a clutch lever 29 pivoted to lugs on the frame 142' and connected at its other end to a clutch operating rod 30 extending rearwardly through opening 14a. Shaft 27 at its rear end has secured thereto one member 31 of a universal joint, the other member 32 of which is secured to a shaft 33 also extending rearwardly through opening 1412. and which will be connected to the motor of a driving vehicle.

The shaft 22 has secured thereto at each end the propeller or impeller members 34. Each of these members comprises a central hub keyed to shaft 22 and a cylindrical flange or drum portion 34a connected to the hub by the ribs and webs 34b. The propeller also comprises scoop-shaped radially extending blades 340 secured to the outer side of the frame portion 34a. As shown in Figs. 1, 2 and 5, these blades are formed from segmentshaped plates folded in curved form about the central axis and secured to the drum at their wider ends. A hollow conical member 3403 extends outwardly from each of the members 34, the same terminatingsubstair tially in a point and each of these conical members has a helical blade 346 secured thereto, said blade tapering to a point adjacent the end of the cone and extending helically thereabout and having its other end terminating closely adjacent one of the propellers 34.

The blades 34e 'a re oppositelyarranged on the'two conical members so 'thatithe'y tend to convey snow to the propellersor rotors'34.

In operation the plow will' be propelled barsconnected to the lugs 10a. Shaft 33 will" 'b connected -to the motor' of the pro- .pe'lling vehicle and-the rod 30* and the- Shat'ft -18 zwill extend. to said vehicleand: be provided with operating means. Sha -ft 33 is' rotated and when the clutch members 26 "and 28am connected by operation of the clutch rod EAlyshzrtt '22 will be driven through the gears 23 and 24 soithat the propellers 34 are rotated together with their portions 34d and,

346. The snow isengagedrbythe'edge of the frame l4jand bythe propel'lers, and is moved rearward-1y by the blades340. llheupropellers are rotated "at quiteia =high"speed so that'th'e snow movediback by the propellers 34cis' ,directed into the sides of the chute l4fband e dischargedthrough the top/of'said chute at high-velocity As the .plow progresses the snow is engaged by theiront edg es of the blades '12 and all of thesnow inside of the blades 11 and 121is guided inwardly by the mold board 1 3 so as toflbedi-rected toward the'opening'13b. The snow is en'gaged by the helical blades 346 and these move the same inwardly towardthe propellers 34. The snow is "moved toward thechute 1:41) by the concave surface of theipliatc 140 so that as the-plow moves forward-.ptht: snow is moved inwardly andjeventuall'yengaged by :the

blades 34c and discharged into and through the chute 14b. Asthe plow moves alongthe highway; it is desired" to discharge the snow at the side. They-chute 14?) can bedirected to one side or theother by the epera'torturning the shaft 18. This rota'tes the-Ip'in-ion I5 and rotates the member 14 carrying the frame 142' and; theshaft 22 and the propellers 34. The chute 14b is thus-directedtoward one side of the roadcor the other and the snow is discharged'at the desired side. The-"chute may sometimes be in a vertical pesiti'om tf there is a strong Wind' bIoWing; so that the show will be carried off sto'the side of the road or when thesnow is being loaded into a wagon, "as whensremoving snow-"from the city streets. The "sha'zftf22and ithe propellers 34 'as well as the conveyors formed'bymembers 34d a-nd 34c can bethrown; out of operation when desired by operation ofthe'c'lutch e comprising*members 26and28.

s -From v the above description it is seen that applicant has provided a veryiefiicient structure of; snow plow; The snow is effectively engaged and discharged and can be directed toeither sideof the road as desired. "The discharge chute is quite short or of stub formation, so that there is little impedance of the snow dueto-"friction' with the sides of the chute. The device is designed "to pmpelled" and operated Fby'an' automotive 'vehiclc, such as a truck or tractogandncan b'c (snowrearwa rdly into said chute,

readily attached: "thereto-for operation; I The parts of the device are-quite rugged land the zplow is capable of handling very'deep snow 7 onoperati'ng in deepidri fts. It willwbemo'ted that the driving mechanism forsthe propell- 'lers, as well as-r'the clutch 'imechanism, istall enclosed in the (frame and protected *from snow. 7 fThe device is quite ruggedly made and: intended for :heavy duty. ItI'Wi'l-l be 'ap{ utility for the purpose intended;

parentthatthe, device has a high degree of i It will, {of course, be" understood thatr va 'rio'us changes may bemade in "the:r:fcrm,rde.-

tails, arrangement and" proportions of the parts, Without applicants invention, whichgenerally stated,

consists in a device capable of carrying out depart-ing" irom the scope; of

the objects-above set fortluin therpartsand i combinations of parts" disclosed aznd-ide'fined in the appended claims. J I

and arotatabl'e propel ler rprojectin-g forwardl'y of said blades and arranged to deliver saidsurlfaee acting 'to' guideflsaid snow to said apropeller andchute. BJA snow'pl'owhauingincombination, a

a rotatable impeller extending- 'forinc *rearwardly slopping mold-Bboard, a chuteito which 'snow is directed by saidmold' boamifa propeller unit for directin snow through said chute, andmeans am oscillating said chute and propeller uni't' together about an axis extending forwmrdly and: rearwardl yotf 'saidplow. I u i 4. A snow plow having in combination, a mold board-a chute-sinthe-'rear'ot said mold board, a pair of =s'paced ipropellersrotatable about an axis extending-transversely of said moldh'0'ard, said chute and propellers bein'g oscillatable about an axis extending forward ly and rearwardlyof said mold board.

5. A'snow plow having in combination,

bottom and side blades,a moldboard'slop r 7 ing urear'wa'rdly" and having a" central opening, a unit rotatable-about said 'openingand including anupWard-ly directedwhu'te; spaced propellers, carried saidunit for delivering sno vtosaid chute, and conveyors carried We -i Propellers;

6. A snow plow having in combination,-a mold board, a substantially horizontal blade at the lower portion thereof, vertical blades at the ends of said blade, said mold'board extending rearwardly from said blades and having a central opening, a chute in the rear of said opening, a plate having a concave surface leading from the edge of said opening to said chute, and a propeller disposed in said opening and arranged to discharge snow from said chute.

7. A snow plow having in combination, a substantially horizontal bottom blade, vertical blades at the ends of said bottom blade, a chute in the rear of said blades, a mold board having a surface extending rearwardly from said blades for guiding snow to said chute, a propeller rotatable about a substantially .transverse axis for directing snow into said chute, and oscillatable about an axis extending forwardly and rearwardly of said plow.

8. A snow plow having in combination, a mold board having arearwardly sloping surface, a chute in the rear of said mold board, a shaft extending transversely in front of said chute. a pair of spaced rotatable propellers secured to said shaft and oscillatable about an axis extending forwardly and rearwardly of said chute to direct snow to said chute.

9. A snow plow having in combination, a mold board, a chute in the rear of said mold board, a shaft extending transversely of said mold board in front of said chute, spaced propellers carried on said shaft and rotating in planes extending forwardly and rearwardly of said mold board, means for rotating said shaft and propellers, and means for swinging said shaft and propellers about an axis extending forwardly and rearwardly of said low.

p 10. A snow plow having in combination, a bottom blade, side blades extending upwardly at the ends of said bottom blade, a mold board havingv a surface sloping rearwardly, said mold board having a central opening, a guideway surrounding said opening, a chute in the rear of said opening having a front opening to receive snow and having a cylindrical guide rotatable in said guideway, a'frame carried by said chute, a shaft journaled in said frame, propellers secured to said shaft, means for driving said shaft, and means for oscillating said chute and frame.

11. A snow plow having in combination, an upwardly extending chute, spaced propellers in front of said chute rotatable about a transverse axis to direct snow through said chute, and means for oscillating said chute and propellers about an axis extending forwardly and rearwardly of said plow.

12. A snow plow having in combination, an upwardly extending chute, means in front of, said-chute for propelling snow therethrough, and means for oscillating said chute and first mentioned means about an axis ex tending forwardly and rearwardly of said plow.

13. A snow plow having in combination, an upwardly extending chute, means mounted in its entirety on an axis arranged transversely of said plow for propelling snow through the chute, and means for oscillating, said chute about an axis extending forwardly and rearwardly of said plow.

14. A snow plow having in combination, spaced propellers, means at the outer sides of said propellers and carried thereby, for moving snow to said propellers, a chute in the rear of said propellers, and means for rotating said propellers for propelling snow into said chute and discharging the same therefrom.

15. A snow propellers having radially extendin scoopshaped blades thereon, conical, mem ers extending axially of said propellers at the outer sides thereof, vanes extending helically around said members for moving snow to said propellers, a transverse shaft on which said propellers and members are mounted, and means for rotating said shaft.

16. A snow plow having in combination, a means through which snow is discharged, a propeller for directing snow to said means, means for rotating said propeller, said propeller being oscillatable about an axis extending longitudinally of said plow.

17. A snow plow having in combination, a moldboard having an opening therethrough, a discharge means in the rear of said opening, a pair of propellers in front of said means, a shaft on which said propellers are mounted, means for rotating said shaft and propellers, said discharge means and propellers being oscillatable as a unit about an axis extending forwardly and rearwardly of said plow.

18. A snow plow having in combination, a mold board having an opening th'erethrough, a discharge chute in the rear of said opening, a frame carried by said chute projecting forwardly through said opening, a propeller carried by said frame, and means for rotating said propeller, said propeller directing snow through said chute.

19. A snow plow having in combination, a mold board having an opening therethrough, a frame having a portion rotatable about said opening, a discharge means carried on said frame in the rear of said opening, and means for propelling snow to said discharge means carried by said frame and extending through said opening.

20. A snow plow having in combination, a member including an opening therethrough, a propeller for causing snow to travel through said opening, means for rotating said proplow having in combination,

peller, and means for oscillating said propeller about an axis extending forwardly and rearwardly of said plow.

21. A snow plow having in combination,

an upwardly extending chute,meansin front i of said chute. and mounted on an axis arranged transversely of said plow/for pr0pel-- h the chute, and means for ling snow throu rst mentioned means about oscillating said an axis extending longitudinally of said plow.

22. A snow plow including a propelling unit comprising a shaft, spaced propellers secured to said shaft, a conical member ex tending laterally from each propeller at their remote sides, and helical vanes carried by said members.

JOHN R. RITCHIE.

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