US1536172A - Road plow - Google Patents

Description

Mays, 1925. Q

A. B. WEBB ROAD PLOW Filed Dec. 3, 1924' May 5, 1925.

A. B. WEBB ROAD PLOW Filed Dc. 1924 May 5, 1925. 1,536,172

A. B. WEBB ROAD PLOW v Fild Dec. 5. 1924 q '4 Sh ets -Sheet s May 5, 1925. 1,536,172

A. B. WEBB ROAD PLOW Filed Deb. 5 4 '4 Shts-Sheet 4 atented May 1925.

i A i INCORPORATED, OF WATERTOWN, WISCONSIN, A. CORPORATION OF DELAWARE.

. ROAD new.

application filed December 3, 1924. Serial No; 753,710.

To all whom it may concerit:

Be it known that I, AJrrI-IUR B. WEBB, a

. citizen of the United States, residing at VVatertown, in the county of J effrson andthe State of isconsin, have invented a certainnew and useful Improvement in Road Plows, of which the following is a full, clear, concise, and exact description.

My invention relates to road plows and is of particular use in plows which are employed to remove snow. a

Runners or other bearers for plows now in a use may ride up on hard snow and hold the plow shovels in position to prevent them from materlally removlng the snow unless these shovels have compensating downward adjustment. A downward adjustment of the shovel of such a plow that is sufficient to accommodate the runners may also effect too great removal of the snow, particularly upon crowned roads, it being desirable to leave some snow for sleighs and other vehicles.

Incarrymg out my mvention, I employ oneor more supplemental shovels in connection with the main shovel of a plow, each tracking with a trailing plow supporting runner or other bearer and arranged to have its cutting edge below the cutting edge of the main shovel to clear the paths for the trailing runners. In the case of light snow, the runners may find their desired level ,without the assistance of supplemental shovels, wherefore I preferably make these supplemental shovels so adjustable that their cutting edges may be coincident with orabove the level of the cutting edge or the .main shovel. This adjustment is also of service in deter-mining the depths of the cuts that are to accommodate said runners. The main and supplemental shovels are desirably assembled directly together, means being preferably employed for tilting the main shove-l together with the supplemental ENT OFFICE;

ARTHUR B. WEBB, OF WATERTOWN, WISCONSIN, ASSIGNOR TO MONARCH. TRAGTORS,

l The invention will be more fully explained in connection with the accompany- 1ng drawings in which Fig. 1 is a side elevat1on ofa plow as I preferably construct it, together with a vehicle in pushing relat 1on to the plow; Fig. 2 is a sectional .plan

view on line 22 of Fig. 1; Fig. 3 is a sec-.

tional view on line 3-3 of Fig. 2; .Fig. 4 is a front view of. the plow; Fig. 5 is a rear elevation of the plow, on line 55 of Fig. 1; F g. 6 is a sectional View on line 66 of Fig. 2-; Fig. 7 is a sectional View on line 7-7 of Fig. 5; Fig. 8 is a sectional view on line 8-8 of .Fig. 6; Fig. 9 is a View of a part of the structure as it, appears in Fig. 8, on a larger scale.

The main shovellis forwardly and downwardly inclined, as usual, being mounted upon the front sloping members 2 of the triangular frame whose horizontal base members 3 run close to the ground and whose upright side members 4 are in the rear of the plow. As illustrated, an upright wall 5, extending longitudinallybf the plow, is disposed at the middle of said shovel and above the same and is connected by diverging curved plates 6 at the rear of the plow with the upright transverse 'wall 7 that is supported by the frame members 4.

and which extends from the rear of the shovel, a sufliclent distance above the same to prevent the snow from being thrown materially upon the tractor 8 or other pushing vehicle that is in the rear of the plow. Dischargiers 9 are disposed above the plow immediately in front of the wall 7 and are turned in a vertical plane which is transverse to the plow. As illustrated, these dischargers are lnclusive of blades mounted upon shafts 10 extending longitudinally of the plow and driven by sprocket chains 11,

these chains in turn being driven by sprocnet wheels 12 that are driven by an internal combustion engine 13 or othersuitable means. Adjustable deflectors .9 serve to define the extent to which the dischargers 9 laterally discharge snow being removed by the plow.

In operation, the plow is borne upon bearers that are preferably in the form' ofrollers 14:, 15 and 16, and other bearers that are in the form of runners 17, 18 and 17,

18. The roller o'r bearer 14 is in the rear of the plow midway between its sides, the bearings 19 for the roller being carried at iii) the bottom of the frame 2O. This bearer M is spaced apart'lon itudmall of the s. b J

.PlOVV from the bearers 15, 16, 17 and 18,

theselatter bearers being also he sides of the plow whereby the aforesaid frame work is given what may be termed a threepomt support when the plow 1s in operation.

The runners 17 18 are also desirably at e 7 x the sides of the plow. 'lhe location of the engine'and the other parts is such that the greater part of the weight of the plow is carried upon the long rear roller 1a and the runners 17, 18 so that the plow will not tend to turn upon the common axis of the rollers 15, 16 in direction to lift the rear of the plow upwardly but will tend to lower the rear of the plow and elevate the cutting cab 24, as is familiar to those skilled in theart. Each endless track passes about the wheels and 26 at the ends of its orbit and there is a frame 27 surrounded by each track which is carried upon the shafts 28, 29 of the wheels 25, 26 and which frame is further supported by the rollers 30 upon the bottom stretch of the surrounding track. The two frames 2? swing independently upon a transverse shaft 31 which depends from a horizontal frame 32 that carries the cab 2% whereby each endless track of the tractor is capable of oscillating in an upright plane with respect to the other, in accordance with the common practice. The frame work of the tractor which carries the transverse shaft 31 has a forward transverse member 33. Brackets 21-, 35 are secured to the frame member 3; and project rearwardly therefrom. These brackets are integrally cast with a spring barrel 36 having a reduced rear end 37. A rod 38 extends along the axis of the spring barrel to be sur rounded by the coiled spring 39 abutting against the rear end wall of the barrel and pressing forwardly upon the head 20 provided upon the front end of said rod. l he rear end of this rod is in hinged connection with the forward end of the bar t1, the rear end of this. bar passing through the horizontal opening 42 at the middle of an axle at the rear of the tractor. The rear end of the bar 41 is in hinged connection with the apex of the triangular frame 44, the assembly of this bar and frame being desirably effected by a bolt &5 passing through a block -16 which is bolted to and within the apex portion of the frame The'base of the triangular frame :H- is boltto the transverse bar which is at the rear .of the tractorand is'c'onnectcd with the rear ends, of the longitudinally disposed horizontal push bars 48 whose forward ends are pivot-ally connected with the brackets 49 which areassemble'd with the base mcmhers 3 of the frame that carry the shovel 1.. As the tractor is propelled, it pushes the plow because of the pulling action exerted by the frame member 33 upon the spring barrel 36. The rear end of this barrel pushes upon the rear end of the spring, the forward end of the spring. pushes forwardly upon the rod enlargement of the rod 38 and this rod pulls upon the bar 11, which, in turn, pulls upon the member 17 The latter member pushes upon the rear ends of the bars 18 whose forward ends push upon the brackets 49 to push the plow. The forward ends of the push bars 18 are bifurcated to embrace the rear upright corner members t of the shovel carrying frame, these members being rectangular to prevent the material turning movement in a horizontal plane of the push bars and plow,'\vhereby the tractor and the plow being pushed by the tractor are maintained in fixed alignment in the line of travel. The brackets 49 are pivotally asselnbled between the forward portions of the bifurcated front ends of the push bars.

The level of the cutting edge 50 of the shovel is adjusted by swinging the shovel upon the common transverse axis of the rollers 15 and 16. In order to effect this adpistment of the shovel, I provide means permitting the tilting of the frame upon these rollers with respect to the rear rollers it. This means consists of suitable adjusting mechanism whereby the rear parts lof the frame may be raised or lowered while the roller 14 remains upon the roadway. To this end, the frame 20 which is supported upon the roller 14 through the. roller bcurings 1'9 is disposed in upright guides 5i that. are fixedly assembled with the shore] supporting frame at the rear of the plow. The frame 20'carrics a plurality of power increasing sheaves 52 upon and depending from its top rail. A bridge 53 is assembled with the bottom members 3 of the shovel supporting frame and carries a set of sheavesbtthat are-complemental to the sheaves 52. A cable 55 is lashed at one end 56 to the bridge 53 and has its other end lashed to the winding drum 57 which is mounted to turn upon the frame member which is assembled with the shovel sup, porting frame. The cable is weaved back and forth between the two sets of pulleys so that when the drum 'is turned the bridge 5.") and the guideways 51, together with the rear of the shovel supporting frame will either be elevated or allowed to be lowered by the wight upon the shovel according to the direction of rotation of the drum whereby the shovel cutting edge 50 may be correspondingly lowered or raised.

The mechanism for turning the drum is governed by the operator in the cab 24 who is provided with an operating wheel 58" for this purpose, the shaft of this wheel being coupled by means of a universal joint 59 :with one end of a shaft 60 formed in telescopically coupled sections, the forward end of the shaft being coupled by another universal joint 61 with a worm 62 meshing with a worm wheel 63 which isfixed upon the shaft 64 that carries the drum 57.

The extent to which the cutting edge of the shovel may be lowered islimited by the engagement of the rear parts 3 of the shove-l supporting frame, with the forward end portions of the push bars. Further raising of the rear of the shovel supporting frame will raise all of the plow structure except the rear roller 14', the entire plow structure" then moving upon the fulcrum axis furnished by the rocking engagement of the push bar" structure with the axle 13. The rollers 15 and 16 and the four runners are raised from engagement with the roadway when" the rear of the plow frame is sufficiently .lifted by the action of the winding drum 57,, whereby these bearers are relieved fro-m wearing" contact with the roadways when the -plo w .is being trans ported thereover,this beingfparticularly advantageous when the roadways are substantially free of snow. The rollers 15 and 16 desirably extend downwardly through the runners 17 and 18, each of these runners that is penetrated by a 'rollerbeing, in effect,

a double runner with one runner upon each side of the correspondmg roller. The rol-.

lers 15- and 16 may support the forwardpart' of the plow when it is not desired to elevate the portion of the plow in front of the rear rollers 14,,- the rollers 15, 16 then serving to maintain the. front runners sufficiently clear of the roadway to prevent hard wear thereupon when the plow is being transported over bare roads. The rear runners may be correspondingly elevated out of wearing contact with the roadways when the rear of the plow is sufiiciently raised by the cable '55.

The runners on each side of the plow track supplemental shovels being adjusted to have I their cuttlng edges below the cutting edge Where thesnow is so,

of the main shovelto form pathways for the. trailing runners and rollers that are sufficiently deep to enable the cutting edge of the main'shovel to reach the snow and en ter the same to the depth determined by the adjustment-of the main shovel. These supplemental shovels are desirably in hinged connection at 65 with thefframe work carrying the main shovel, the supplemental shovels having wings 66 penetrated by the stems of removable bolts 67 ,these bolts be ing receivable in various holes 68'that are located at different heights through the extension 68' of the shovel supporting frame, whereby the heights of the ,cuttingedges of.

the supplemental'shovels may be. regulated,'. both with respect to the roadway and with respect to the cuttin edge of the main shovel, the range of t e adjustment of the supplemental shovels being such that not only may pathways be cut sufiiciently'deep for the rollers and runnersatthe sides'of the plow but that the cutting edges of the supplemental runners may be elevated above the cutting edge of the main shovel so that the main shovel may operate alone. When the plow is in use. upon snow, which is not sufiiciently hard to prevent the runners and side rollers from entering the same to a. sufficient depth, the supplementary shovels are desirably placed out of service by. adjusting them with respect to the main shovel, but

adjustability, since it is withinthe scope of my invention to provide a fixed relation be tween thesupplemental shovels and the main the invention is not to .be limited to this shovel with the cuttingedges of the sup-.

plemental shovels so related. to the cutting of the plow is raised, the supplemental shovels will have their cutting edges lowered to the desired extent with respect to the cutting edge of the main shovel. Many of the objects and advantages aris-' ing from th plow of my invention have been fully set forth and will, withothera-not specifically dwelt upon, be fully realized by those skilled in the art. I j I 1 Changes may be .made without departing from my invention.

Having thus described my invention l claim edge of the main shovel thatwhen the rear.

1. A road plow including a main shovel;

rollers at the sides of the shovel andanotlier' between the sides of the plow, these rollers runners upon the sides of the shovel downwardly through which the first aforesaid rollers project; and supplemental shovels ahead of and tracking with said runnersand the rollers projecting therethrough and adjustable to. shift their cutting edges down wardly and below the cutting edge of the main shovel.

2. A road plow includinga main shovel;

being in supporting relation to the shovel; I

l 'n l r4 Leis do sides of the shovel and another 2 sides the plow these rollers in supporting relation to the shovel; aniental shovels and vith the first aforesaid rollers shame with respect to the main shovel to shift 'iheir cutting edges downwardly and below the cutting edge of the main sliov 1 A road plow includinga niain shovel;

bearers at the sides of the shovel and another between-the sides of the plow, these bearers being in supporting relation to the shovel; and supplemental shovels ahead of and tracking with the first aforesaid bearers and adjustable with respect to the main shovel to shift their cutting edges downwardly and below the cutting edge. of the main shovel.

510 L. A road plow including a main shovel;

a bearer in supporting relation to said shovel; and a supplemental shovel ahead of and tracking with said bearer and adjustable to shift its cutting edge downwardly and below the cutting edge of the main shovel. 5. A road plowincludinga main shovel; a bearer in supporting relation to said shovel; and a supplemental shovel ahead of 30 and tracking with said bearer and arranged to'ha-ve its cuttingedge below the cutting edge of the main shovel.

6. A road plow including a main shovel; a bearer in supporting Telatio'n to said shovel;a supplemental shovel ahead of and tracking with said bearer and adjustable relatively to the main shovel to shift its cutting edge downwardly and below the cutting edge of the main shovel; and mecha- 40 nism for tiltingthe main shovel and the supplemental shovel with it. p

7. A. road plow including a main shovel; a bearer in supporting relation to said shovel; a supplemental shovel ahead of and tracking with said newer and arranged to ing the main and the so:

A ow including a 'iiiltable sh bearers upon which the sh led; a rear bearer in supporting relation the shovel; mechanism r r moving the rear of the shovel up and down with respect to the rear bearer and thereby turning the shovel upon the forward bearer, in combination with a vehicle in pushing relation to the plow; push bars mounted to swing at their rear ends upon said vehicle and in pushing relation to the plow at their forward ends and engageable by the plow when'lifted to a predetermined extent with respect to its rear bearer, the plow inbeing further elevated then swing ing upwardly with the push bars and together with the forward bearers while the rear bearer remains upon the roadway.

9. A road plow including a tiltable shovel; forward bearers upon which the shovel may be turned; a er in the form of a roller in supporting relation to. the shovel; and mechanism for moving the rear of the shovel up and down with respect to the rear bearer and thereby turning the shovel upon the forward bearer, in combination with a vehicle in pushing relation to the plow; push bars mounted to swing at their rear ends upon said vehicle and in pushing relation to the plow at their forward ends and engageable by the plow when lifted to a predetermined extent with respect to its rear bearer, the plow in being further elevated then swinging upwardly with the push bars and together with the forward bearers while the rear bearer remains on the roadway,

In witness whereof, I hereunto subscribe my name.

ARTHUR- B. WEBB.

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