US1562842A - Snow plow and loader - Google Patents

Description

HP. MILNE ET AL snow PLOW AND LOADER Filed July 5, 19233 5 sheets sheet l H. MILNE ET AL.

SNOW' PLOW AND LOADER s Sheefs-Sheet 5 Filed July 5, .23

Nov. 24,1925 1.562842 H. P.-MILNE ET AL snow PLOW AND LOADEH Filed July .5, 1925 5 sheets-Sheet 4- A TTOF/VE'Y,

1;"62,842 H. P. MILNE ET AL SNOW PLOW AND LOADER Filed July 5, 192 5 Sheds-82199125 Nov. 24:

A TTOR/YEY.

Patented Nov; 24, 1925.

HARRY P. MILNE AND LOUIS M. SANDERS, U33 EAST GRANGE, NEW JEliitiEY; Lfilillm 1\L. SANDERS, JR... ADMINISTRAKWELEL til -2 SANDERS.

SNQW' PLOW AND ILDADER.

Applica1tion filed July 5,

To all 207mm tiff may concern:

lle it known that we, I'IARRY l. Mimi: and Lotus hat. SAXnnns citizens of the linited States, and residents of the city of. East Orange. county of Essex, and State of New Jersey, have invented a new and useful Improvement in Snow Flows and Loaders, as set forth in the annexed specification.

In the prior application of Gustave Ochs, 1O Ser. No. 511,464, filed October 29, 1921.. a snow plow is described and claimed which has proven very eliicient in actual practice for the purpose of clearing; roadways of ac 'cumuhitcd snow, and for banking it upon the side of the rozulwuy. This disposition of the snow is qiiite satisfactory for country roads. where the hunks o l snow thus placed iorm no material obstruction to the traffic. However. in cities and densely populated sections, it is the common pructicc to loud the snow in wagons and curt the s-(une away. to some convenient dumping place. The snow must he gathered up und-shoveled into the Wagons. and the time and expense re- *5 quired for the purpose is very great.

It is the purpose of our present improvement to slightly modify the construction of the said Ochs snow plow, and :nld thcreto' means for picking up the "snow; storing it in a dump hopper upon the truck trom which it is dumped directly into wagons from timeto" time :is the hopper is tilled. huugcs :flso have hecu made in the mount 'o'i 'ihe phnuupon the truck,m'liereliy a stundurd truck may he utilized for the purpose of mounting thc plow and louder thereon. in such a. munncr us to permit of its ready removal therefrom. so that thc truck may housed for other purposes.

Another important feature of our improvcmcnt consists in the self-dumping hopper. the parts of which are so huiunccd that by releasing: u. retaining catch. thc ovcr-. i'icipght ot' the loud in the hopper will cause it to dump. and when completely empty, to right itseli' automatically.

Other features of improvement will he fully set. forth in the following' specification. in connection with the nccompunying druuings whcrein-- Fig. l is :1 side elevation of our improved plow and loader, n'iounted upon the stand; ard automobile truck, (the latter shown in dotted lines).

Fig. 2 is a plan view of the some.

' the standard Fig 2' is a section on line VIE-WM of Fig. 6. r

8 is 21 section on line VIH-VIH 0i Fig. l.

Fig l) is a. i i-ectionul plan, portly in sechig. 8, with the upper enclosing custii'ig rei'noved to show the gen r plan.

and 4; are respectively front and Fig. 10 is :1 section on line X X, of. Fig.

8. showingthe method of connecting the conveyor blade to the inclined spoke of the driving V tjiimilur reference characters refer to like purts throughout the specification and drawings.

The truck upon which our improved plow and loader is to be mounted may he of the standard or of preferred type. As shown in dotted lines in the several figures type is illustrated diagram- 1l12lti01ll}",'Wltl1 the chassis 1, hood 2, and cab 3, supported upon the wheels d. Mounted upon the platform or chassis l in the rear of the cab 3 is a, supplemental frame or chassis 5, bolted or otherwise secured in place. Upon this frame 5 is a pair of cross hean'is t3, 6., which extend over the side of the chassis to at distance sutticient upon the left hand side upon which the operator may stand. The engine for driving the conveyors is mounted upon the beams G, 6 at 8 with its driving shaft at right angles to the axis of the chassis 1. The other ends of the beams 6. 6 extend beyond the right, hand side of the chassis to a distance sutiicient to afford it su'giiport tor the inclined conveyor 9. Upon the ends of the beams 6, 6, the bearing casting 10 is bolted, as shown in Fig. 8, said casting having mounted there in the shaft 11 in exact alignment with but independent of the engine shaft 12. Upon the shaft. 11 is the cast supporting frnne 13, the upper part of which forms 9. tubular support for the tubular conveyor 9,, and also for the. driving connectionsthe details of which will he disclosed later. The up to :tliord :1 platform 7 properly support the/plow in any adjusted as 15, 1G, and firmly hold them in place as shown. Pivot'ed upon the inner end ofthe shall: ll and extendingi'orward beyond'tlhe :l'rontendof the chassis 1 are'the'two struts 17, 18; siihilar struts extendforwardlyffrom the outer end of the engine shaft 12, and upon the forward ends of these struts is rigidly secured the frame-workof the plow,

the structure being such that the entire plow may swing up and down about the two shaftsli, 12 as a center. The plow body is made up ofcommercial shapes, and consists of the pairs of angle iron; 19, 20 and 21, 22, lattice braced toget curved into the are of a ci ole of which the shafts 11, l2'arethe center. The two angle irons 19, 20 have their lower ends bent into arcs of circles extending rearwardly and riveted to the lower ends of the angle irons 21, 22. The sheet metal apron 23, of a size to completely span across the front of the chassis l and extend for a considerable dis-' tances beyond, is riveted to the angle irons 19,20, followingthe contour thereof. so as to form a semi-cylindricallower portion 24-, within which the horizontal spiral conveyor is mounted to rotate. Upon the forwardend of the chassis 1 is a laterally extending shaft, 25, provided with spur gears 26, 27

upon its ends to engage Wlth arcuate racks 28, 29, rigidly secured respectively upon the angle irons 21, 22. A crank 30 is prowided upon the end of the shaft 25, upon the turning of which, the entire plow structure may be elevated and lowered. In order to elevation position, a ratchet wheel 31 is nounl'cd upon the shaft 25, with an engagmg pawl 32 pivoted upon thc end' of the chassis 1.

The ends of the apron 23 are turned f6!- wardly to form the lateral or end wings 33, 34, and in the angles thus formed the angle rons 35, 36 are r veted, With their lower ends extending. across the axis of the semi-. cylindrical portion 24', to form suitable-supports for the bearings 37, 38 for'the shaft 39 of the 'horizontal conveyor 40. This con veyor is of the double spiral type, as shown,

and its wings or spirals extend flOlfLtl point ust w1thin the apron wing to a point wnsidcralily short of the opposite end of the-shaft 39 (see Fig. 3).

The inclined conveyor tube 9 is rigidly connected at the lower end. with the semi cyindricalportion 2-1, with-which it is in open communication, so'that snow directlyhy the conveyor 40 totheopening in the apron portion 24. W111. find its'way into the conveyor tube v9. y V Within the tube 9 is a spiral conveyor 41,-

sshown and which, when driven will carry the accun'mlated snow from the lower end and dis- 'charge the same from the. open. upper end into a duznping hopper 42, which latter is mounted upon the rear oi the suplilemcntal for communicating suchv power will now be explained. Upon the inner end of the eugineshaftylQ is a sprocket wheel 43, from which the drive chain leads to another spro et Wheel 4-1 upon the short shaft monntcd in hearings in the castings l3, 1%

as shown more clearly in Figs. 8 and S). Upon theshaft 15 is a. bevel gear 46 en aging asimilar bevel gear l7 upon the s ai't 48, which is also mountcdin bearings formed in the castings 13, 141-, and lies parallel with the axis of the conveyor tube 9. 'Upon the shaft 48 is in 'spur. gear 49 in n'iesh with alarge spur gearhfl, the inner diameter of whose rim is substantially the same as that of thcconvcyor tube 9 at that point. The inner part of the castingslti, 14 is re cesscdsov that when the twecastings are separated, the gear 50 maybe placed in the.

recess and afterward the castings may be ,1 bolted together. Roller bearings. are .pro-

videdjor the gear 50, but since their details are the sameasthose of a similar gcar at the'lower end of: the tube 9, an explanation of the latter is deemed sufficient. The spokes 51. of the gear 50 are what are known as of the .propcller or fan t pe and are of the same pitch as the spira of the conveyor 41, so that when the sections of said conveyor are connected up to the spokes of the gear on cach side, as shownin Fig, 10, the united structure constitutes substantially a continuous spiral from end to end, and the gear connections described form a compact and substantially enclosed driving structure.

The upper end of the shaft of the conveyor 41- is carried in a' bearingof thousual type in the end or cap casting The tube sections 15, 16 are clamped hctwccn (the sec-- tions '13, 14, and as shown, the entire tube structure is tapered from end to end. The

conve 'or 41 is corres ondin l ta ered and,

s P i is of a diameter to run smoothly within the tube without actual contact therewith.

As abovc descrihed, the lower end of the conveyor tube 9 is rigidly mnnected to the enduof the cylindrical portion 24 of the apron 23. The connection is made by means of a two-partcasting 5%., 'u hich is made to serve as a bearing for the iowcr end of fthe conveyor 41 and also as a housing for the gear train ,between the conveyor i0 and .41. 1

The parts or sections 53, 54 are recessed to receive the lar e fan-spoked gear wheel 55,.in substantia y'thesarnc manner as dcin Fig. 10.

scribed in connection with the gear 50. llccessos 56 are provided in each of the. seetions to receive the rollers 57 which hear upon the fl21lill' lfi (-lll-lfi "face of the gear Wheel as shown, so as to center it within the open interior of the easting and 't'orin therewith substantially a continuation of the conveyor 'tulie. lilies-hing with the gear is a spur pinion 58 upon the shaft 59 which latter isinounted in hearings in the sections 53. 5i. Upon naforward end of the shaft 59 is a bevel gear (it); in mesh with a similar gear 61 upon theshaft 62. which latter is mounted in hearings in the sections 53, 54, and extends through the apron wing, 34, where it is connected to the adjacent end of the shaft 39 of the conveyor 40. The lower end of the shaft of the conveyor -l-l is coupled to the hub 63 of the'gear wheel 55,:and the wings of said conveyor are also connected to'the fanlike spokes of said gearwl'ieel, in substantially the same manner asthat described above in connection with the gear 50, its spokes 51 and the spiral of the conveyor 41, and substantially shown From the foregoing. it will he seen that when the engine 8 is in operation. the two conveyors 4-0. 4-1 will he driven by the gear connections described, and that it the trail advances into fallen snow in the roadway such snow will he gathered up and conveyed by the conveyor to the opening in the lower part ofihe apron 24f, from which it will he carried lay the conveyor 41 to the upper end of the tnhe 9, whence it is discharged into the hopper.

in order to render the snow more compact, and more easily handled, the exhaust oi the truck motor is led through the liexihle tube 38 to the free end oi? the hollow conveyor shaft 39, and said shaft is provided with numerous perforations alongthe conveyor wings, from which the hot exhaust gases escape into direct contact with the moving snow: likewise the exhaust oi the engine t 8 is led into a sort of inufller tank (15, from which the flexible tube tlG leads up to and is connected with the bearing in the cap 52, and thence the exhaust gases from the tank are discharged into the upper end of the hollow shaft "of the conveyor 4-1. The

constant discharge of the hot gases into direct contact with the snow as it is being carried along by the conveyors serves the double purpose of making the snow pack and prevents freezing, butvit also reduces the bulk of the snow as itadvances through theeonveyor tube 9.- It is thus possible to taper the tube so that its upper diameter iiiay he one half or even less, than its lower eliameter.

'The receiving: hopper is of the self-dumprngz type, that is when einpt v. its wings are so balanced that-it will elose autoniatically hut when tilled the outhoard wingsustains the hulk oi the load and when tripped. will tilt in sueh a manner as to form with the other wing", an inclined plane from which the loadreadilv slides into a waiting: wagon drawn along side the truek. in order to properly support the homer a stanchion tl'i'. made of eoilnnereial st eel shapes, is ereeted upon the frame or ehasr-riso. immediately at the rear of the engine 8. and a like stanehion (lo is erected at the extreme end of said frame. These stanehions are l)( )ltt3d or riveted to the frame and form a permanent and rigid part of the structure. Between these, stanchions the hopper wing ('39 is pivotallyhung at its upper edge in quite close proximity to the discharge end of the tube 9. To the lower edge of the hopper wing; 69, the other hopper wing T0 is hinged with its free edge extending considerahl beyond the sideof the truck. The wiug'i't) is supported by a pair of links 71, 72, the upper ends of which'are respectively pivoted to theupper edges of the slant-hions (37, till and their lower ends are pivoted to the ends of the wing it) at points a short. distance away from the hinge, so that the greater part of the wing is outhoard. 'lhe hinge pintle 73 by which the wings of). are hinged together is. tuhular and eontains numerous perforations througrlniut its length: its rear end is connected in the flexihle tnhe T-l with the inuiller or exhaust lanl; ($5. The wings of). it are made ol" sheet inetal with their ails separated and stillened by small channel liars, so as to he in etlect, hollow ehanihers into which the hot exhaust; gases may escape through the perforated pinlle 73. The upper walls of the wings (ill, 70 also have numerous pert'oraiions for the escape of the gases into direct contact with the accumulating snow within the hopper: the result being not only the constant melting; of the snow and eonsequent reduction of its hulk, but the forming of a film of water all over the inner walls of the hopper, so that on dumping, the snow will readily and quickly slide therefrom.

The necessary elevation 01" the hopper, in order to give the requisite tall in-duinping leaves ample space beneath it. for the exhaust tank 65, and also for a large capacity fuel tank 75, from. which hoth the truck engine and the engine 8 are supplied. In addition, of course the usual tank for simplying fuel to the truck ei'igine may he carried in the custoniar f' place heneath the drivers seat in the cab;

The ends ofithe hopper are formed of sheet metal cut, in quadrant form as at 76, 7 7 78, 7 9 one plzir of which is riveted to the, ends ofeach hopper wing, in such a manner as to overlap when the hopper is closed; and open jup sciss0rs like but still overlap on dumping. This arrangement forms a lot) llt)

lift

very ellicient method of preventing the end spilling of the snow from the hopper either when filling or on duinpiiw. The small spring catch 80 is mounted upon the stanchs ion 67 in position to snap under the wing 70 when the hopper closes after dumping, and is in convenient position for the operator standing on the platform '7 to pull when the hopper is filled so that the overweight of the load may dump thehopper.

The plow loader as described is readily detachable from the truel chassis, and stored. when not in use, so that the truck may be used for other purposes. The entire structure with the exception of the "few castings and the gear trains, made up of commercial shapes of rolled steel, and is therefore of very low original cost. it is easy to manipulate and its use in clearing city streets dispenses with much hand labor,

We claim w 1. In a snow plow and loader, the combination of a self-propelled vehicle with a plow body supported upon the forward end of said vehicle. struts extending from the rear of said plow body, and pivotal connections for'tlie rear ends otsaid slruis mounted upon said vehicle, whereby said plow bod'ymay be elevated and lowered aboul said "pivotal"connections as a center.

' 22 In}:- siiow plow and loader. llucombination with a sell-propelled wheeled vehicle, of a detachable frame mounted thereon. laterally extending aligned shafts mounted upon said frame, forwardly extending struts mounted upon said shal'ls and a plow vbody rigidly connected to the forward ends of said struts and located at the front of said vehicle, with means upon said vehicle for 'aising and lowering said plow body relative to said vehicle.

3. In a snow plow and louder, lluromhination with a sell-pr pclled 'vcliichu' of a frame dclachabiy mounted thereon, lalcl'ally disposed aligned'shal'ls mounted upon said frame, forwardly cxicudin; slruls' mounted upon said shafts, a plow body rigidly secured to the :lorward ends of said.

struts, rack and pinion mechanism rcspec l59 tively upon said vehicle and plow body for elevating said plow body with respect to said vehicle, and a power driven worm conveyor mounted upon said plow body for laterally directing snow or other granulated material from in front oi said plow body.

4. In a snow plow and loader, the combination of a motor driven vehicle, of a frame detachably i'i'iountcd thereon, horizontal shafts laterally aligned upon said frame, a plow body at the forward end oi? said vehicle, a strut upon each side of said vehicle connecting said plow body with said shafts respectively, and means connecting" said low body with the front end of said veliielc for elevatingsaid plow body with rcspect to said vehicle and about said shaftsas a center.

In a snow plow vand leader, the combination with a motor driven vehicle, of a. frame detachably mounted thereon, hori zoutal shafts laterally aligned upon said "frame, a plow body located at the front end of said vehicle, a strut upon each side of said vehicle connecting said plow body with said shafts, a power driven worm conveyor mounted upon the lower part of said plow body, and. means upon the front end of said vehicle. for adjustaliily elevating said plow body and conveyor about said sli'afts as a center.

6. In a snow plow and louder, the combination of a plow body comprising a substantially vertical plane sheet metal aprop having its lower end rearwardly curved into asemi-cylinder, an upwardly inclined rearwardly extending conveyor tube in open conununication with ope end. of said scmicylinder, and power driven conveyors respectively in said semi-cylimler and in said lube, whereby snow or other granulated. material is laterally directed. by the conveyor in said scmi-cyliiulcr and tin-ally discharged from the upper rear end of said tube conveyor.

2". In a snow plow and loader, the combination with a motor driven vehicle, a plow body adapted to be supported at the frontend of said vehicle, an upwardly inclined rearwardly extruding convevor tube connccb ed to one end of said plow body, a strut upon each side of said vehicle extending to a point midway the length of said vehicle and pivotr lly supported thcrcat and rigidly coir nccted to the rczr side of said plow body, and means upon the l'routucud of said vehicle for adjustably elevating said plow body and tube as a unitary structure about the pivotal rear ends oi" said slruls asa renter.

S. in a snow plow and louder, ihocombination with a motor driven vehicle. of a 'lrau'io delachably mouulcd upon said vehicle, a plow body adjuslably supported at the front end of said vehicle, a strut upon each side of Said vehicle, cach strut being pivoted upon said frame and having its forward end rigidly connected to said plow body, and means upon said vehicle for adjusting the elevation of said plow body with respect to the vehicle front and about the rear ends of said struts as a center. v

9. In a snow plow and loader, the combination with a motor driven vehicle of a. frame mounted upon said vehicle, a plow body supported upon the from; 0nd of said vehicle, struts upon the sides of said vehicle pivoted at their rear ends upon said frame and connected at their forward ends to said plow body, and means upon said vehicle and plow body for elevating the latter aboutthe pivotal ends of said struts as a center, a convevor tube connected to the rear side of said plow'hody and. extei'uling rearwardly and upwardly therefrom, and power driven means upon the lower part of said plow body and within said tube for dirert ng snow laterally of said plow body and through said tube to be discharged from the rear end thereof.

16., In a snow plow and louder, the combination with a motor driven vehicle, of a frame mounted thereon, a dumping; hopper and an engine rcspeetivvdy upon said frame, forwardly extending szrut's pivoted at the engine shah axis, a plow body rigidly secured at the forward ends of said st l'llllS, a conveyor tube ooiniected to said plow body and extending rearwardly and upwardly therefrom with its discharge end above said hopper, and conveyors mounted respectively upon saidplow hody and within said tube, and means for driving said conveyors from said engine to convey granulated n'iaterial from the ground level to sad hopper.

ll. in a. snow plow and louder, the combination of a power driven vehi't'le with, an-

engjine, and aduinping hopper supported upon said l'ranle, a plow body having a con-v veyor nmuuled upon the lower part thereof located at. the forward end of said vehicle, a rouveyor tube having its discharge end extended above said hopper and its lower end colmeel'od to said plow body, a conveyor wifihin said tube, said conveyors both being driven from said engine. for directing snow laterally across the frontv of said plow body and through said lube to said hopper.

. 12. In a snow plow and loader, the combination with a power drivenvehicle, of a frame mounted fiherer'm, a dumping hopper and an engine, mounted thereon, a plow body adjustably mounted atthe front end of eaid vehicle, a conveyor tube leading from said plow body to and above said hopper, conveyols I'es mctivel upon the lowerpart3 of said plow body and within said tube, ear connections for driving said conveyors rom said engine, and means for discharging the exhaust gases from said engine through Said conveyors, and to said hopper, whereby snow may be directed across the front of said plow body and through said tube into said hopper in compressed and compacted form. 13. In a snow plow and loader, the eolubi nation with a motor driven vehicle, a doliachalde frame supported upon said vehicle,

said tube, gear connections between said engine and said tube conveyor and between the adpurentends of sanl conveyors, and means for conducting the exhaust, gases from said epgine to said hopper and to said conveyors, whereby snow upon a roadway may be (ii-- rooted b said conveyors through said tube into sai hopper, and its bulk progressively reduced by contact with. said exhaust gases.

HARRY P. MILNE, LOUIS SANDERS.

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