US1497630A - Road-roller maintainer - Google Patents

Description

June l0 W. T. BEATTY ET AL ROAD ROLLER MAINTATNER Filed Jan. 2 1923 4 Sheets-Sheet 1 June 10 1924. 1,497,630

W. T. BEATTY ET AL ROAD ROLLER MAINTMNERl Filed Jan. 2, 1925 4 Sheets-Sheet 2 June 10 1924. 1,497,630 W. T. BEATTY ET AL ROAD ROLLER MAINTATNER F'ied Jan. 2. 1923 4 sheets-sheet :5.

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June 10, 1924. 1,497,630

` w. T. BEATTY ET AL ROAD ROLLER MAINTATNER Filed Jan. 2. 1923 4 Sheets-Sheet 4 Patented June l0, 1924.

1,497,630 PATENT ortica WILLIAM T. BEATTY, or FLossMooIt, FRANK s. DAVIS, oii- HoJiIEwooD, AND ram n.

WILSON, 0F HARVEY, ILLINOIS; SAID DAVIS AND WILSON ASSIGNORS T0 AUSTIN' MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOI.

ROAD-,ROLLER MAINT'INER.

Application led January 2, 1923.4 Serial No. 610,345.

To all whom it may concern.'

Be 1t knownthat we, WILLIAM T. BATTY,

FRANK S. DAVIS, and FRED D. WILsoN, citi-v zens of theUnited States, residing, respectively, at Flossmoor, Homewood, and Han' tainers, of which the following is a speci? ication. ,i This invention relates to. machines used 1n i the upkeep of roads. lts object is/to provide a road roller et any number of wheels, more specifically as yillustrated a three wheel road roller', with a maintainer, viz.: a combined and alternatively selectable planer or scraper, whereby the machine can plane or scrape and simultaneously roll the surface of a road to be repaired, the roller cooperating with the plan/er orv scraper to provide attractive control of the blade not heretofore .present in such devices.

A further object is to provide a machine which will do this not only without tearing up the road or other worked surface as is usual with' conventional tractor devices, but

actually combines-with the planing or scrapN ing simultaneous rollingwhich has in prior,

devices been providable/only by a separate operation and by employment of a separate rolling machine, In other words, the genericvadvantage of the invention' lies in the fact that its ground gripping tractor,` which propels it and gives the force to its blades` is a roller aswell, which while propelling is rolling at the/ same time-something no other machine has ever done-with the result that while scraping or planing, it is a real roller and always leaves its work packed and rolled into permanent smooth shape, such as can only be done where any other 4machine is used, no matter how big and powerful, by ya separate rolling with a separate roller.

A further object is to provide a positively mounted, though selectively adjustable,` pushed blade, thereby securing positive action and control of the blade not heretofore possible.

Stated in concrete form, the reason why the device of this invention hereafter illus trated excels all other devices or tools for maintaining gravel or dirt roads is that,y

although normally a small one-man machine,

it has the weight vof a heavy roller acting,

as a base or foundation carrying its adjustable blades and it has the power required for the roller, which would not ordinarily be provided for the blades alone, incorporated behind the roller weight to make the blade can, because of the tractive force of a'three or four ton roller incorporated in it be held to almost any job and it has the strength and power to do it.

The invention consists in mechanism capa ble of attaining the foregoing and other objects; which can be very easily and cheaply made; which is satisfactory in use, and is not readily liable yto lget out of order. The invention still further consists in many teaturesv and details of construction which will be hereafter more fully set forth in the specification and claims.

Referring to the drawings in which like numerals designate the same parts throughout the several views: f

Figure 1 is a side elevation of mechanism illustrating this invention invits preferred form.'

-Figure 2 is a Figure 1.

Figure 3 is an end view, section, .taken on line 3-3 -from the left hand end of Figures 'l and 2.

Figure 4 is a side detail view of the mechanism atthe extreme left hand endet Figure i, for adjusting both the angular-it and the vertical position of the maintainer lade.

'Figure 5 is a plan detail view on the line 5-5 ol Figure t.

Figure Sis asectional detail line Ii-Gef Figure 1.y

Figure 7 is a detail View at or about the line of Fig. 2 showing the method oli attaching a rod to the engine case.

view on the partially in" do the hardest of jobs. Concretely, when lil@ of maintainer having adjustable ends,

Figures 9 and 10 are detail views of the hin e for the adjustable blade end and 4of sai blade itself.

The drawingstvshow a conventional` form of road roller which is fully described and claimedl in an earlier application by W. T.A Beatty and Frank S. Davis,'Serial Number 606,184, which includes a pair of spaced- .as the machine passes over a. given path whereby this roller, though used to give traction to a`scraping blade, also givesia uniform rolling behind the entire vwidth of the minimum length scraping blade (,-when the extensions 110 are folded back) which is what a separate rolling machine would do if following after anyl conventional, separate scraping or grading machine. and unless the l entire surface behind the blade is uniformly rolled, the result is not commercially considered road rolling at alli In other words.

i to roll a couple of strips of/surface behind theblade as the wheels of a conventional' tractor might do if theslugs were taken off, would not accomplish what the machine of this invention does because there would be a gap between the tractor wheels, which in the machine of this invention is rolled by the front roller and the work of these two trac- M tor wheels could not be consideredroad rolling and would not take the place of road rolling, because road rolling mustcover the entire surface and there is no such thing as rolling a road Vin strips with vacancies in i between. The termfroad roller is used in the claims to mean a machine capable of such wide rolling action. The'rollers 14 and 16 are close enough together longitudinally of the machine and the wholemachine is of suici'ent .weight that suliicient traction exists between the krollers and the ground to insure effective planing or scraping, hereafter described, of the path or road travel,

simultaneously with the rolling operation.'

The rollers 14 and 16 are made of sufficiently large diameter so that real rolling. as distinguished from pushing dirt ahead of them, takes place. The /conventional roller` referred to also includes a drivers seat or 'sta-l tion 26 at the rear of the machine, a hand manipulatable shaft 28, extending fromthe station tol the front of the machine where, through the worm 30 and segment 32 is adapted to rock the post 22 and consequently the front roller 16.

In carrying out'this invention, a combined scraper-maintainer blade 34 is positioned cross-wise. of the central axis of the machine in frontof the roller 16 in such manner that thisblade can be placed at different angles cross-wise of the axisof the machine, and, consequently. of the road, as shown in full and dotted lines in Figures 2, and 5. It is also so arranged that 1t can by the use of slots 46 and 50. Fig..4 be tilted vertically to different angles-this for the purpose of making it adaptable to maintainer o scraper use. as the case may be.

In order to insure accurate positive work by the blade, it is mounted for positive pushing by the rolling machine, preferably in front of the machine, thereby keeping the wheel base of the roller relatively short with consequent efficiency of the roller mechanism proper. In the specific embodiment of the mechanism for accomplishing this desired result',d the blade proper 34 is more or less permanently attached, by means not entering JintoI this invention, to aparallel carrying frame, specificallyj an angle bar' 36, also extending across the central axis of the ma- ,'chine, and the upper flange of this angle bar is detachably secured by any suitable means, as for instance, bolts 38. to afpair of spaced brackets 40-one located on each side of the roller 16 and inl alignment with ground engaging shoes or runners 42 of substantial length, extending toward the 'rear of the ma- ,chine well past the roller 16. Each bracket 40 is attached to its adjacent runner' 42 by a simple'pin 44 and slot 46 connection and apin' 48 and angular slot 50 connection, whichirr a manner entirely obvious from inspecting Figure 5 permits the angle memlber 36/and consequently the blade 34 to be 42 form together a U-shape frame and they will be referredto under that designation in some'of the claims. The runners constitute a depth gauge for the blade and will be kso referred to in some of the claims.

This U-shapedLrame is attached to the body 18 of the engine by mea-ns of two' opposit'ely disposed rods. in the particular case here illustrated, angle irons '56 pivotally supported at the engine body on studs 58 carried by detachable brackets 60 (Fig. 7) attached to certain b01ts62 conventionally,

used in the engine construction. 4The opposite or free swinging ends of these rodsv Nvious shifting of a runner 42 from `the full,

,line position of Figure 2 and re-bolting it in new position. A maintainer blade 34 of the type described will not operate properly unless the -shoes 42, carryingl it, are firmly pressed upon-'the ground and, at the same time, it is necessary that l'the shoes rock through`limited arcs about the bolts 64 in order to allow for `obstructions on the surface ofthe roa l The spring mechanism fully shown on Figure 6, is therefore provided for" producing these desirable results,- the same including a vertically positioned bolt 7 0 pivotally attached at its lower end 72 to the adjacent runner 42 and reciprocatiable through a perforation 74 in the adjacent rod 56, there lbeing provided about the bolt and on opposite sides of the rod 56 compression springs 76 and 78, adjustable as to compression bymani'pulating the nut 80 of obvious construction. With these devices in position, the shoes 42 are always under proper 4spring control, regardless of whether the operator is using the mechanism hereafter described to elevate or lower the rods 56. `Whenever `the operato'r'changes the angle A position of blade 34 by manipulating bolts 64 at an adjacent shoe 42, as heretofore described, it is necessary that the lower end 72 of bolt 70 be correspondingly shifted into another one of holes 82,provided for it in thesame adjacent shoe. 42.

Pivotally mounted to each'rod 42'ata point 84,' somewhere between the spring mechanism l76 and the blade 34, is a vertically extending bar y86 y provided lwith laterally extending lugs 88- through which slides a rod 90 encased in a spring. 92, interposed between a lugl 94 on said rod and the lower one of said lugs 88. f

The upper end of each rod 90 is pivotally ,connected 4to acrankl arm 96 on a sha-ft 98, suitably journalled across the front of the frame v20, said shaft carrying a gear segment l100 meshing with a worm102` on a shaft @104 extending back to a point adjacent the operators seat or station 26 and there providedwith suitable mechanism, specifically a hand wheel 106, adapted to be grasped by the operator for the purpose of rotating the shaft 104 to thereby raise or lower, as the case `may be, the rods 56 and consequently theU-shaped maintainerJ frame supported y'fit.l Y Assuming that the operator manipulates wheel 106`toforce the rods 56 downward, he thereby partly compresses the springs 9 2y to, under spring control. transmit the desired pressure to the bars 86 and consequently ultimately 'to the blade 34. Therdevice is preferably so constructed that springs 92 will never be completely compressed, with the result that .the blade 34 can, if an obstruction in the road is encountered` spring upward against the action of these springs. Attention is called., to the fact that the pivotal points 58 for t-he rods 56 are so low down on the engine 18 that, assuming the roller is moving to the left, as viewed in Figure 1, an almost direct thrust is ex,- erted on the maintainer blade 34 to push it Yalong the ground.v ln other words, the rods 56- are so nearly parallel to the ground that practically all of the push of the engine vis delivered 'directly to the blade.

Figures 8 and following show an alternative construction in which the maintainer blade is provided at one or both ends with adjustable extension members 110, suitably pivoted as atf112. adapted to be used either in alignment with the blade to thereby increase its working length; or in an alternative position where itl is, as shown, swung out of the way o f the blade and fastened in such retractedposition byany suitable means, as, for instance, the devices 114. Attention is called to the fact that, as clearly shown in the upper half of Figure 8, blade extension member 110 swings back of blade 36 sufficiently far to lentirely clear its end, thereby leaving the end of blade 36 free to make a finished. vertical cut in the work beT ing` done. Q v

Either form of maintainer blade, herein referred tof'may be provided with an angularly extending plate 116 which [makes the maintainer blade more effective..

v' In the operation of the device, an opera- A f tor sitting on the seat at the rear of the machine manipulates the two hand wheels before him to steer the front wheel of the 'roller and to raise and lower the maintainer blade. By simultaneously. operating the engine control mechanism-not entering into "this invention and not shown, to cause the machine. as a whole to move, `the machine rolls and maintains in a practically continuous operation.

The rods 56 and the maintainer mechanism controlled'by them are maintained in normal position with referencel to the central axis of the road roller machine, notywithstanding variations in vertical position as described through the' agency of a conventional link or radius rod 120, pivoted to a lug 122 projecting from the engircl case and attached to one of the rods 56 at 124.

If desired, plate 116 may be taken ofi' member and reattached in position 116 when memberllO is swung out of the way as ters Patent is:

Yasv

illustrated in Figure 8. In this position, the operator can get his rollers nearer to a curb or the like.-

Having thus described our'invention, what we claim as new andl desire to secure by Let- 1. In mechanismof the class described, a road roller carrying an operators station, a maintainer at an end of the roller, pivoted, vertically, swinging' angularly disposed pushingmeans between the road roller and ,maintainer and a single means manipulata- 4 ble by an operator at the station shifting the v vertical position' of the entire maintainer.

2.' In mechanism of the class described, a road roller carrying an operators station, a .maintainer at an end' of the roller, angularl' disposed pushing means between the roa roller and maintainer, means manipulatable by an operator at the station shifting tbevertical position of the maintainer, and `yielding spring mechanism in the vertical vshifting mechanism for the purposes set forth. i

3. In mechanism combination, a three wheel road roller, a U- shaped/maintainer mechanism, enclosing the front Wheel of the roller, pivoted, vertically swinging means by which the roller posiv tively pushes the maitainer,an operators stationl on the roller and a single means manipulatable from the operators station for elevating and depressing the entire maintamer.

4. In mechanism of the class described, in combination, a three wheel road roller, a U- shaped maintainer mechanism enclosing the front wheel of the roller, means pivotally mounted on the roller by which the roller positively pushes the maintainer, an operators station on the roller and a single means manipulatable from the operators station for elevating and depressing the entire maintainer.

5. In mechanism of the class described,

combination afthree wheel road troller, a U- shaped maintainer mechanism enclosing the nfront wheel of the roller, inclined push bars approximately horizontal by which the roller positively positions the maintainer, an o erators station on the roller and a sing c means manipulatable from the operators station for elevating and depressing the entire maintainer. K f .6. In mechanism of the class described, 1n combination, a threel Wheel road roller, a U-sh'apd maintainer mechanism enclosing the front wheel of the roller and resting on the ground, means pivotally attached to the side arms of the U-shaped maintainer mechanlsm connecting it with points ontheroad roller intermediate of its ends, an operators station on the roller, and means manipulatable from the 'operators station, engaging lthe' supporting means for the maintainer ofthe class described, in`

^ the ground, means the ground, means mechanism for elevating and depressing the maintainer.-

7. In mechanism of the class described, in combination. a three wheel road roller, a U- shaped maintainer mechanism enclosing the irontwheel of the roller and resting on' the ground, means pivotally attached to the side arms of the U-shaped maintainer mechanism connecting it with points on the road roller intermediate of its ends, an operators station on -the roller, means manipulatable from the operators station, engaging the supporting means for the maintainer mechanism for elevating and depressing the maintainer, and yielding mechanism in the elevating and depressing mechanism for the purposes set forth. j

8.- In mechanism o f the classr described, in combination a three wheel road roller, a U- shaped maintainer mechanism, enclosing the front Wheel of the roller and resting on the ground', means pivotally attached to the maintainer mechanism, connecting it with points on the road roller intermediate of its ends, an operators station on the roller, and means manipulatable from the operators station engaging the supporting means for the maintainer mechanism for elevating and depressing the maintainer.

9. In mechanism of the class described, in

depressing the maintainer, and yie ding mechanism inl the elevating and depressing mechanism, for the purposes set forth.

10. In mechanism of the `class described, in combination, a three wheel road roller, a U-shaped maintainer mechanism enclosing the front wheel ofthe roller and resting on ressing the maintainer mechanismtoward t e ground `at four separated points, connectin it with points on the road roller interme iate of its ends, an

operators station on the roller and means manipulatable from the operators station engaging the lconnecting means for the maintainei` mechanism for elevating and depressing the maintainer.

11. In mechanism of the class described, in combinatiom a three wheel road roller, a U-shaped maintainer mechanism enclosing the front wheel of the roller and resting on ressing the maintainer mechanism-toward t e groundat four separated points, connecting it with points on the road roller intermediate of its ends, an cperators station on the roller, means ma- 'and nipulatable from the operators Stationen- 'gagingthe connecting means for the .maintainer mechanism for elevating and depressing the maintainer, and yielding mechanism in the elevating and depressing mechanism, for' the purposes set forth.

12. In mechanism of the class described, a three wheel `road roller, two 'wheels at one end and a third at the other, an operators station adjacent to the two wheels, a U-shaped maintainer frameI enclosing the third wheel and normally resting on the ground, pushing means pivoted to the maintainer and to' the roller andmeans selectively operatable from the operators station for shifting the single wheel for steering and for elevating or depressing'the maintainer.

13. In a device of the class described, in combination with a lwheel of a road roller, a maintainer blade extending parallel to the axis of the wheel supported on runners extending across the axis of the wheel, means' between the roller and maintainer mechanism pressing it at four points onto the ground, means under the controll of a single operator for changing the 'angular position of the wheel with reference to the maintainer and" lpressing it at four points onto the ground,

means under the control of a single operator for changing the angular position of the wheel with reference to the-maintainer and for varying the vertical position of the maintainer with reference to the wheel, and means for shifting the maintainer blade out of parallelism with the axis of the wheel.

15. In a device of the class described, in combination with a wheelof a road roller, a maintainer blade extending parallel to the axis of the wheel, supported on runners extending acrossthe axis ofthe wheel, meansv between the roller and maintainer mechanism pressing it at four points onto the ground, means under the control of a single operator for changing the angular position of the wheel with reference to the maintainer and for varyingthe vertical position of the .maintainer with reference to the wheel, and

means for changing the vertical angular position of the maintainer blade. A f y 16. In a device of the class described, in

combination with a wheel of a road roller,

,a maintainer blade extending parallel to the axis of the wheel supported on runners Uextending across the axis of the wheel, means between the roller and maintainer mechanism Jfor changing the angular position ofthe wheel with reference to the maintainer and for yarying the vertical position of the maintainerwith reference to the wheel, and means for changing the angular position ofthe maintainer blade, both with reference tothe axis ofthe wheel and with reference to the vertical angular position of the 'maintainer blade.

17. In mechanism of the lclass described, a U-shaped frame resting on the ground having on its central portion a maintainer blade, its side arms acting as runners therefor; a pair of rods pivoted on opposite sides of said U-shaped frame near the juncture ofthe runnerswith the maintainer blade, spring mechanism tending to yieldingly maintain each of said arms at a given angular position with reference to its adjacent runner, and means engaging said rods between said spring mechanism and the marintainer blade for forcing the U-shaped frame into 'the ground for the purposes set forth.

18. In mechanism of the class described, a U-shaped frame resting on thel ground hav- Iing on its central portion a maintainer blade,

its side arms acting as runners therefor; a pair of rods pivoted on opposite sides of said U-shaped frame near thel juncture of the runners with the maintainer blade, spring mechanism tending to yieldingly maintain each of said arms at a given' angular position with reference to its adjacent runner, and spring cushion means engaging said rods between said spring mechanlsm and the maintainer blade for forcing the U-shaped frame into the ground, for the purposes set forth.

19. In mechanism of the class described, a `U-shaped frame resting on the ground havingon its central portion a maintainer blade, its side arms actingv as runners therefor; a pair of rods pivoted on opposite sides of said U-shaped frame, spring mechanism tending to yieldingly maintain each of said arms at a given angular position with reference to its adjacent runner, and means engaging said ground for the purposes set forth.

20. In mechanism of the class described, a-

U-shaped frame resting on the ground hav- -ing on its central portion a maintainer blade,

its side arms acting as runners therefor; a pair of rods pivoted on opposite sides of said U-shaped frame, spring mechanism tending to yieldingly' maintain each .of said arms at a given angular position with reference. to its' adjacent runner, and spring cush1on means engaging said rods for forcing the U-shapedframe into the ground, for the purposes set forth.

21.' In combination with a,roadf roller, a

maintainer blade in front of the roller, push rods connected to said maintainer blade, pivotally connected to the roller mechanism at points only slightly above the maintainer lade, and a single means for selectively elevating the; entire maintainer on said pivots for the purposes set forth.

22. In combination with a road roller, a maintainer blade in front of a roller and an ad]ustable extension on the end of saidl maintainer blade movable between two positions in one of which it is in alignment with the blade and in the other of which it is clear of the end of said blade, and leaves the end free to do cutting work in a vertical line.

23. In combination with a road roller, a maintainer blade in front of a roller, a-n adyustable extension on the 'end of sai'd maintainer blade, and a pivotally mounted extenthe ground.

i its .central portion Ycarrying a maintainer blade, .while its. side arms act as runners therefor, means for forcing said frame along the ground, means connected to said forcing,

means operating at two separated points along each runner holding the runner on 26. In mechanism bf Athe class described,

'fa U-shaped frame resting on the ground,

its central portion' carrying a^ maintainer blade, while itsside arms act as runners therefor, means for forcing said frame along the ground,'means connected to said forcing means operating at two separated pgints along each runner holding the runner on the ground, and a spring in the said connections farthest from the blade. I i

y 27. In mechanism ofthe class described` a U-shaped frame resting onthe round, its

central portion carrying amaintainerlblade. while its side arms act as runners therefor,

` means for forcing said frame along the ground,means\ connected lto said forcing means operating at two separated points along each runner holding the runner on the l ground, and spring mechanism in said forcing means itself. i

28. I-n mechanism of the class described, a U-shaped frame resting .on the ground, its central portion carrying a maintainer blade,

while itsside arms act as runners therefor,

means for forcing said/ frame along the ground, means connectedJ toA said forcingv meansoperating at' two separated points along each runner holding the runneron the ground, al spring in the'said connections farthest from the blade, and spring mechanism in said forcing means itself.

29. In mechanism of the class described, a U-shaped frame resting on the ground, its central portion carrying a maintainer blade` while its side arms act as runners therefor, means for forcing said frame along the ground, means connected to said forcing vmeans operating at two separated points along each runner holding the runner on the ground, a moving road roller as the powerv behind said forcing means. and means operable b v an operator carried by the roller for selectively lifting the frame clear of the road traveled and for adjusting `it to intermediate positions.

30. In mechanism of the class described, a Ushaped frame resting on the ground` its central portion carrying a maintainer blade, while its side arms act as runners therefor, means for forcing said frame along4 the ground, means connected to said forcing `means voperating at two separated points along each runner holding the runner on the ground, a spring in the said connections farthest from the blade, a moving road roller as the power behind said forcing means, aiid means operatable by an o erator'carried by the rollerY for selective v lifting the frame clear of the road traveled and for adjusting it to intermediate positions'.

31. In mechanism of the class described, a U-shaped frame resting on the ground, its central portion carrying a maintainer blade. while its side arms act as runnersv 4therefor,'ineans for forcing said frame along the ground, means connected to said forcing means operating at two separated points along each runner holding the runner on the ground. spring mechanism in said forcing means itself. a moving road roller as the power behind said forcing means. and means operatable by an operator carried by the roller for selectivelv lifting the frame clear of the road traveled and for adjusting it to intermediate positions. o

32.- In mechanism of the class described, a U-shaped frame resting on the round, its central portion carrying a maintainer blade, while its side'arnis act as runners therefor, means for forcingI said frame along the ground, means connected to said forcing means operating at two separated points along each runner holding the runner on the ground, a spring in the said connections farthest from the blade, spring mechanism in said forcing means itself, a moving road roller as the power behind said forcing means, and mean-s operatable by an operator carried by the roller for selectively lifting the framev clear of the road traveled and for ad'usting it tp intermediate ositions. 33. n a machine of theclass escirbed, in combination with a propelling mechaf' nism, a U-sha-ped road engaging frame having a road cutting blade as the center member of the frame, a pushing member intermediate connected between the ends of each side member of the frame extending in a `diagonal direction to the Vpropelling mechanism, and means more remote from the blade than the attachment points of said pushing means for pressing the side members of the frame onto the ground.

34. In a machine of the class described, in combination with a self-propelled road roller, a- U-shaped road engaging frame having aroad cutting blade as the center memberjof the frame, a pushing member intermediate connected between the ends of each side member of the frame extending in a diagonal direction to the road roller, and means more remote from the blade than the attachment points of said pushing mea-ns for pressing `the side members lofthe frame onto the ground.

35. ln mechanismlof lthe class described, a maintainer blade, means for pushing it overthe round and spring mechanism behind the i(lrilade preventing its entering the ground too deeply. v v

Y 36. In mechanism of the class described, a maintainer blade, means for'pushing it over the ground and spring mechanism at some distance behind the blade/engaging the pushingmeans preventing the blades entering the ground too deeply.

37.y ln a mechanism of the class described,` in combination, a road roller, a maintainer mechanism, and manually controlled means operated from the roller for applying pressure, simultaneously, at four 'points on the maintainer mechanism.

38. In combination with an automotive vehicle, a maintainer blade, in front of saidl vehicle, delivering material to one side only of the machine, and an adjustable extensiony on each end of said blade. j Y 1 39. `In a machine of the class described,

'gularity' `of the blade for selectively a depth gauge mechanism, adapted for travel over the ground, a cutting blade carried by the depth gauge, and means selectively adjusting said bl-ade vertically and diagonally relatively to said depth gauge mechanism.

40. In a machine of .the class described, a depth gauge mechanism, adapted. for travel over the ground, a cutting' blade carried by the depth gauge, and means selectively adjusting said blade `vertically and diagonally relatively to said depth uge mechanism and for adjusting the angu arity of the blade to vertical plane.

41. In'a machine of the class described, adepth gauge mechanism, adapted for travel over the ground, a cutting blade carried by the depth gauge, and means selectively` adjusting said blade vertically and diagonally relatively to said depth gauge mechanism and for adjusting the angularity of the blade to vertical plane and for selectively extending the length of the blade.

42. In a road roller, a vcutting blade carried by the rollerover the ground and means selectively adjusting the blade both vertically and diagonally. K

43. In a road roller,a cutting blade carried by the roller over the ground, means selectively adjusting the blade both vertically and diagonally, and for adjusting the angularity of. the blade to a vertical plane ,44. In a road roller, a cutting blade carried by thel roller over the ground, means selectively adjusting the blade both vertically and diagonally, for adjusting the anextending the length of they blade.

In Witness whereof, We have hereunto subscribed our names.

WILLIAM r'BEAT'rY. FRANK sxnavis. anni) n. Wimson.

to a vertical plane, and

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