US1266532A - Road shaping and finishing machine. - Google Patents

Description

M. MITCHELL.

ROAD SHAPING AND FINISHING MACHINE. APPLICATION FILED IAN-2.1914.

BY MALA WM ATTYs.

Patented Mu l 4,1918.

4 SHEETS-SHEET I- M. MITCHELL.

ROAD SHAPING AND. FINISHING MACHINE. APPLICATION FILED IVAN-2. 1914 Patented Mayl l, 1918.

4 SHEETS-SHEET 3- IVI. MITCHELL.

ROAD SHAPING AND FINISHING MACHINE. APPLICATION FILED JAN-2.19M.

L fifififizu Patented MayM, 1918.

' 4 SHEETS-SHEET 4.

WITNESSES MELVIN MITCHELL, OF PEORIA,

To all whom it may concern:

Be it known that I, MELVIN MITCHELL, a citizen of the United States, a resident of Peoria, in the county of Peoria and State of Illinois, have invented new and useful Improvements in Road Shaping and Finishing Machines, of which the following is a specification. I This invention has reference to a road shaping and finishing machine, and has for its object the production of a machine which is adapted to simultaneously scrape the surface of the road on the opposite sides of the crown, and between the crown of the road and the-ditches alongside thereof, removing the humps and delivering the dirt obtained therefrom into the hollows and toward the crown of the road, and then compressing or making-the crown compact, by passing over the crown a roller traveling in the wake of the scraping devices.

The invention has for a further object to construct a machine of the character referred to, which may be used to scrape both sides of the road alike, throwing the dirt toward the center, and roll the crown to make itcom- "pactyor should one or both ditches need deepening or cleaning out, said scraping devices may be arranged to dig into or clean out such ditches, bringing the dirt toward the center or crown of the road, and the crown of the road packed solidly by the roller traveling in the wake of the scraping devices.

The invention has for a further object to provide'a road shaping and finishing ma chine, not only capable of working across the full width of the road at one operation, whereby both sides of the road are simultaneously scraped, and the crown of the road compressed by the action of the roller, but also to provide a machine which is adjustable to the various widths of roads, and wherein the operative and supporting parts are foldable, so that the machine will pass over or through the very narrowest road bridges now in use.

The invention has a further object to provide a road scraping and finishing machine, having a pair of scraping devices, making it possible to scrape both sides of the road at once, throwing the dirt toward the center Specification of Letters Patent.

ILLINOIS.

ROAD SHAPING AND FINISHING MACHINE.

Patented May 14, 1918.

Application filed January 2, 1914. Serial No. 809,820.

or crown of the road, thereby shaping and smoothing the road; and simultaneously with such action, compressing and packing the crown by means of a roller, said roller being preferably concave so as to leave the crown of the road convex and sloping to the ditches on either side thereof.

The invention has for a further object to construct a machine of the character referred to, which may be used to scrape both sides of the road alike, throwing the dirt toward the center, at the same time opening and cutting the ditches and bringing the dirt in at the one operation, having an adjustable following board attached to the rear of the cutting bars, for the purpose of packing the dirt between the ditches and the crown of the road, and a roller traveling in the rear of the blades at the crown of the road to make it compact.

' The invention has for a further object, the provision of a machine of the character referred to, having two cutting or scraping arms Xtending rearwardly and attached to a frame so that they may be raised or lowered independently of each other for the purpose of scraping or cutting the road at any required depth, said blades also having means whereby they may be automatically locked, so as to gage the cut or may be released, so that the blades may float, and also so arranged as to be capable of being raised a considerable distance from the ground in or der to depress the outer ends of the blades so as to cut with the ends of the blades, as

is necessary in cleaning out deep ditches.

A still further object of the invention, is generally, to improve upon the class of machines for shaping and finishing roads, so as to increase their utility, durability and efficiency.

To the accomplishment of the foregoing and such other objects as may hereinafter appear, my invention consists in the combination, construction and arrangement of parts hereinafter described, and then sought to be defined in the appended claims, reference being had to the accompanying drawings forming a part hereof, and which shows merely for the purpose of illustrative disclosure a preferred embodiment of my inven i n, it b ing u d rs o d that vari us changes may be made in practice within the scope oftheiclaims, without digressing from my inventive idea.

In the drawings- Figure 1 is a plan View on a greatlyreduced scale, of my road shaping and finishing machine, the dotted vlines showing a folded position of one of the cutting or scraping blades;

" Fig. 2 is a side elevation of the same;

Fig. 3 is a vertical crosssection through one of the scraping or cutting blades;

Fig. 41 is a detail view ofrthewmanner of mounting and connecting-ithe-rear ends of the cutting or scraping blades;

Fig.5 5 is a top plan view of thetwo frames, parts-being broken'away to facilitate the'disclosure;

Fig. 6 is a vertical section taken substantially, online 66 ofFig. 5;

Figs? and 8 are detail views of the connection between one of the links and the cutting or scraping blade;

Figs. 9 and 10 are views in plan and side elevation, respectively, of-the locking means for certain of the pinions;

Fig. 11 is a-top plan view 'ofthe sliding frame -and connections for positioning the cutting or scraping blades; Fig. 12 isa vertical section, taken substantially online12-12 of Fig. 11;

Fig. 13 is a side elevation of thelsame,

parts being brokenaway, 'to facilitate disclosure;

Figs. let and 15 are' views in top plan and sideelevation, respectively, of the operating and locking means therefor, for regulating the position of the scraping or cutting blades;

Figs. 16 and 17 are views in side elevation and top plan, respectively, of the pivotal connection between the links which connect each scraping or cutting blade with The means for cutting and cleaning the ditches are readily removable so that the machine wlll serveonly as a road-shaping and finishing machme. This machine is capable of adjustment so as to operate under various working conditions and ineludes 'ditch cutting means, road scraping and smoothing means, means for scraping the crown ofthe road and roller for packing the crownfi The frame isadapted to be connected to the draft wlthout the necessity of using a truck and the roller provides means whereby the device may be supported and steered.

-Tl1e machine as preferably constructed according to my invention, includes What I .termthe main frame 1 v. and, the inneriframe 2,;which frames are movableirelative to each other so as to provide for guidingor steering the machine. Mounted within the inner frame is'theelongated-reach bar 3 which is shown intheiform of an I-beam, having the small supporting or caster wheel 4 1n front and the means 5 for connection with tion of this inner frame-2 and includes the.

side -niembers 11. in the form' of channel'- irons and .the end members 12 and 13in the form of spaced angle-irons, the front. angle- 'lPO111OTl.t-l1e tOp of saidroller carryingf-rame 1, beingwformedgon-the; arcofa curve and provided with a flra ck ltron' its inner side. A pinion. 15 is :mounted' on .the end of-ithe shaft 16 suitably .ijournaled on the inner frame, so i that :when the. shaft 16 is rotated manuallyubymeans :of-rthe hand Wheel 17,

the main or-roller carrying frame 1 will be turned relative to said inner :f'rame'2, a suitable pivotal "@CODIIBCUOII 'belng .zprovided 'therebetween. K 5 Mounted in said 1111161" frame 2- and on:- opposite sides of s the rear portion of the reach bar 3,-isthe two-part .box or casing-18 which is ,pivotally connected .-to

the transverse .members *19 of said amain or roller carrying frame 1,-:by means of'the studs orwpins 2O. Aiportion'r of: the reachbar 3 :extends throughthis casing and is slidable therein, .pbeing ,providedwiththe vrack :bar .21 :with which the pinion -22 meshes, said pinion being mounted-Vina .soeketor recess in saidetwo1part :box or cas- --ing 18- and securedto. shaft 23-,"which isloperated .manually by the-rha=ndle 2 1.; It is robviousathatzby rotating the pinion 22,-,the reach bar will bemoved alongitudinallyfor purposes to be hereinafter.described.

:"Itis to besnoted thatrbracing rods ortlinks 181; connect the box or casing- '18- with "the -1=nner frame, extending as'rshowr'r from the cornersthereof tothe rear: transverse member 9: and-forward transverse member 10,: so that the box '01"CLSiI1gI18; is: held .securely in said inner frame.

' Suitable brace and supportingimembers 25 extend from said .main ;orroller carrying :frame 1 to-the journal or {bearing members v25 in which-the axle 26of the roller:27 is -journaledl= This rollerzis of generalrconcave conformation, as shown in Fig. 1 of the drawing, but attention is called to the fact that at each end, a portion of its surface is flat, as at 27. By operating the pinion 15, it is understood that the main or roller carrying frame 1 will be rotated relative to the inner frame 2, and the roller correspondingly moved so as to steer or guide the machine, as desired.

Suitably supported in the inner frame are the vertically extending sustaining rods or members 28 which are suitably braced so as to be strong enough to support the cutting or scraping blades and the mechanism for raising and lowering said blades. These cut ting and scraping blades .29 include the I- beams 30 having the concaved cutting and scraping members 31 secured to the inner side thereof. The rear ends of these cutting or scraping blades are connected to said sustaining rods 28 so as to be raised andlowered thereon, having the bracket members 32 se cured thereto, the upper and rear end of which is provlded with the slot or aperture 33, the latter being flared longitudinally so as to permit the cutting or scraping blades to pivot on said sustaining rods, the connect ing member or bar 341 being secured to the lower ends of'the sustaining rods and forming'the lower stop for said bracket members A lifting bar '35 is pivotally connected to the end of each bracket 32, which lifting bar extends upwardly along the sustaining rod and has the rack 36 secured to its upper portion. This rack bar 36 is adapted to be moved vertically up and down by means of the pinion 37 which engages therewith, said pinion being secured "to stud shaft 38"suitably journaled in the bracket or securing member 39, which passes around the sustaining rod 28 in the form of a loop 39 being held in position by the rings, sleeves or flange-s40. The locking cog wheel 41 is also secured on said shaft 38, the dog or pawl 12 being adapted to engage and lock the same, this dog or pawl being slidable in guide members 4L3 on the bracket or securing member 39 and having the spring 44: engaging a shoulder i5 and one of the guides i3 so as to normally hold the dog in engagement with one of the notches on said cog wheel 41. The dog l2 may be withdrawn by means of the handle l6, which has a shoulder 47 adapted to engage the end 48 of the securing member or bracket when the dog is withdrawn and the handle turned as indicated in dotted lines in'Fig. ll. The hand wheel 49 is connected to said stud shaft 38 so as to operate the pinion to move the rack 36 and link so as to adjust. the rear end of the cutting or scraping blades. It is obvious that the blades may be adjusted in any position and locked therein, or may be'allowed to move up and down freely or float. Of course this adjustment merely applies to the rear end of the cutting or scraping blades.

The front portion of each blade is adjusted by means of the flexible rope or cable 50, which runs over pulleys or sheaves 51 and 52 and the guide 53 on sustaining rod 28 to the Windlass or drum 54, the pulley or sheave 51 being pivotally connected as at to the cutting or scraping blade and the pulley or sheave 52 and the end of the flexible rope or cable being connected to the crane 56, the guide or supporting stay 57 being connected to the end thereof and to the top of the sustaining rod 28. The parts are duplicated for each blade 29.

The cutting or scraping blades may be moved on their rear ends as a pivot toward and from the reach bar 3. The means for providing this movement includes a stationary rack 58 on the upper side of the reach bar and the sliding carriage 59 having a suitable link' connection with the front end portions of said cutting or scraping blades and having a gear connection with said rack 58, whereby when the gear connection is operated, the carriage will be moved longitudinally on said reach bar to vary the position of the cutting or scraping blades. The carriage is formed of the two side members 60 having spaced rollers 61 positioned therebetween, and adapted to run on the top and bottom edges of the flanges of the reach bar 3. A short shaft 62 is journaled between said side plates 60 and has securedthereto, the worm wheel 6 1. The worm 65 on the end of the telescopic rod 66 meshes with said worm wheel 64 so that when the handle 67 is rotated, said carriage will be moved, due to its gear 63 meshing with the stationary rack 58. The link connection previously mentioned includes the links 68 pivotally connected on each side of the carriage, the links 69 pivotally connected to the ends of saidlinks 68 and to the end portions of the cutting'or scraping blades and the links 70' pivotally connected to said reach bar 3, and the ends of said links 68 and 69, the connec tions of the three links to each other, being shown in detail in Figs. 16 and 17. Link 68 terminates in the larger yoke 71, link 69 terminates in the smaller yoke 72 and the link 70 terminates in the extended portion or sleeve 7 3, all being apertured to receive thebolt or pin 7-4, which thus provides a pivotal connection. From a consideration of Fig. 1, it is seen that upon movement of the carriage 59, the cutting or scraping blades will be moved inwardly or outwardly, du to the link connection, just described.

In order to permit the requisite movement between each link 69 and the cutting or scraping blades, I provide the particular 40 i supporting bar. This construction provides -69 may move horizontally relative to the cutting and scraping blade and the socket joint provides for relative vertical movement.

In order to lock the two frames against 2 relative movement after they have been adjusted and in order to lock the reach bar 3 against movement after it has been adjusted relative to the main or inner frame, I provide the cog or ratchet wheels 79 on the .shafts 16 and 23 ndhave the locking'dogs or pawls 80 pivotallymounted as'at 81, and having the resilient means for holding said dogs or pawls in engagement 'with the notches in the cog or ratchet Wheels 79.

It is to be understood that a similar means is utilized to lock the pinion 15 against rotation.

In order to open, cut and clean the ditches and bring the dirt therefrom to the center f he road, I provide the disk blades 83,

having the supporting bar 84 which is pivotally mounted on the end of the cutting and scraping blades, as at 85, this securing means being readily removable. The end of this supporting bar 84: is provided with a gear segment 86 which meshes with the worm 87 on shaft 88 having the manually operating crank 89. A in and slot connection 90 is also provided for assisting in holding the means whereby the disk plate may be adju s'ted relative to the nd of the cutting and scraping blades, and it is to be understood that thesedisk plates are removable, soas not to interfere with the use of the machine in leveling and maintaining the roads.

I also provide means for cuttin away the crown of the road when it is too hlgh, in the form' of an additional scraping blade 91, which scraping blade is pivotally connected s at 92, to the rear end of one of said cutting or scraping blades 29. To the other end of said additional scraping blade is attached a means for raising and i lowering the same for the purpose of adjustment, which means includes the link 93, pivotally connected to the operating lever 94.

A removable bolt or pin 94is used to lock the inner frame 2 and reach-bar 3 against relative movement, thereby relieving the other parts of'any undue strain, when they may be used in a Set or fixed position. Of course the bolt or pin must be removed on the occasion of any adjustment.

cutting and cleanlng. justment of the rear ends of these blades in-' -My invention also includes -means for smoothing the surface of the road after the cutting and scraping action. ,This means takes the form of the extended'member 95, substantially right angled in cross-section,

bod in m invention erforms man 'funca Y y tions necessary for. the provision of a proper'road surface and ditches. able and adjustable means is provided for cutting andcleaning the ditches on the sides of the road, these means being attached to the forward ends of the cutting and scraping members which have means not only for:

regulating and adjusting their position relative to the surface, but also means for adjusting their rear ends so as toposition their front ends for proper operation in ditch The means for adcludes locking means which gages the cut and which may be released so-that the cutting and scraping blades may float. The frame construction supported on the roller provides simplemeans for guidin the machine so as to follow in the wa eof thetractor especially in turning corners or around in narrow places. The adjustable following board provides means for scraping the crown of the road, if desired. These and other features render my machine a material improvement in this art.

Attention is particularly called to the fact that there is no necessity for providing trucks for supporting and steerin this machine, the front end beino connected directly to the tractor or other drawing means and.

the rear. end being supported on the roller. The frame is so constructed that the roller may be swung as desired, so as to make the mechanism follow in the wake of the engine. Also in turning or backing up the machine is readily steered so as to turn in the very short spaces.

What'I claim is 1. In a road shaping and finishing machine, in combination, a supporting frame, a pair of scraping members, said members pivotally supported at their rear ends at points adjacent each other, and capable of being swung outwardly, diverging from their pivotal points, an additional scraping member supported. at the rear of said mem bers and at an anglerelative to said frame, said additional scraping member being pivotallyconnected to. one of said first mene Removwith its vertical portion 96 adjustably se-v tioned scraping members, means connected additional scraping member for compressing the crown of the road.

2. In combination, a frame, a roller supporting said frame, a reach bar associated with said frame and positioned centrally thereof and extending forwardly therefrom a suitable distance, vertically arranged supports, scraping members having a pivotal connection at or near one end with said supports, a member slidable on said reach bar, link connections between said slidable member, said reach bar and said scraping members, said link connections each including a link pivotally connected to said slidable member, a link pivotally connected to said reach bar in front of said sliding member and a link pivotally connected to said scraping member so as to move both vertically and horizontally relative thereto, and means for moving said sliding member on said reach bar and thereby swing said scraping members out and in, as desired.

3. In a mechanism of the character described and in combination, a frame, a reach bar disposed centrally of said frame and extending forwardly therefrom a suitable distance, said reach bar being movable longitudinally with respect to said frame, said frame and reach bar being pivotally connected so as to be movable relative to each other, a roller supporting said frame, a pair of scraping members pivotally supported at their rear ends, said pivotal connection permitting said members to swing out and in, as may be desired and raised or lowered for the purpose of changing the inclination of said members and the position of the forward ends, a link member connected to the rear end of each of said scraping members having a rack thereon, a gear meshing with said rack and means for rotating said gear so as to raise and lower said scraping members, a member slidably arranged on the forward end of said reach bar, link connections between said sliding member and each of said scraping members, and means for moving said sliding member on the reach bar for the purpose of swinging said scraping members, out and in.

4. In a mechanism of the character described and in combination, a frame including a reach bar movable in relation thereto, cutting and scraping members pivotally connected to said frame at their rear ends, said reach bar having a rack provided on its forward portion, a sliding member mounted to move on said reach bar, link connections between said sliding member, said reach bar and the free end portions of said cutting members, said sliding member including spaced plates on opposite sides of said reach bar having rollers journaled therebetween, adapted to engage said reach bar, a shaft journaled between said spaced plates, a gear on said shaft meshing with said rack on said reach bar, and means for operating said gear whereby said cutting and scraping members will be adjusted at 'difierent angular positions relative to said frame.

5. In a mechanism of the character described, and in combination, a frame including a reach bar movable in relation thereto, cutting and scraping members pivotally connected to said frame at their rear ends, said reach bar having a rack provided on its forward portion, a sliding member mounted to move on said reach bar, link connections between said sliding member said reach bar and the free end portions of said cutting members, said sliding member including spaced plates on opposite sides of said reach bar having rollers journaled therebetween, adapted to engage said reach bar, a shaft journaled between said spaced plates, a gear on said shaft meshing with said rack on said reach bar, means for operating said gear whereby said cutting and scraping members will be adjusted at different angular positions relative to said frame, and means for raising and lowering said cutting and scraping members.

6. In a mechanism of the character described and in combination, a frame including a reach bar movable in relation thereto, cutting and scraping members pivotally connected to said frame at their rear ends, said reach bar having a rack provided'on its forward portion, a sliding member mounted to move on said reach bar, link connections between said sliding member, said reach bar and the. free end portions of said cutting members, said sliding member including spaced plates on opposite sides of said reach bar having rollers journaled therebetween, adapted to engage said reach bar, a shaft j ournaled between said spaced plates, a gear on said shaft meshing with said rack on said reach bar, means for operating said gear whereby said cutting and scraping members will be adjusted at different angular positions relative to said frame, means on the outer ends of said cutting and scraping members for cutting and cleaning ditches at the sides of the road, means for raising and lowering the rear ends of said cutting and scraping members, whereby the depth to which said ditch cutting members cut, may be adjusted.

7. In a mechanism of the character described, and in combination, a frame, cutting and scraping members pivotally and slidably connected at their rear ends to said frame, means for moving the outer ends of said cutting and scraping members to various positions relative to said frame,

. .-r I v means vfor ra sing and lowering the rear ends of sa1d cuttlng and scraping members,

i said means including a rack member, a gear meshing with said rack member, means for [operating said gear, means for locking said "parts in position, said locking means being releasable so that said cutting and scraping members may float or may be locked to gage the depth of the cut.

.' said casing, an operating shaft having a pinion shaft positioned within said casing in "engagement with the rack on the reach bar .so asto move said reach bar longitudinally relative to saidinner frame, means for mov ing said main frame and said inner frame relative to each other about the pivotal point provided by the connection of said casing withsaid main frame.

9. In a mechanism of the character described and in combination, a main frame, "30" v frame having an elongated reach bar movable longitudinally relative thereto, a rack ,being provided on the rear portion of said a roller supporting said-frame, an inner reach bar, a casing pivotally mounted in said main frame and connected to said inner frame, said reach bar extending through said casing, an operating shaft having a pinion shaftpositioned wlthin said casing in engagement with the rack on the reach bar I so as to move said reach bar longitudinally Witnesses relative to said inner frame, means for mmscribed, and in combination, a frame, a

reach bar extending'forwardly therefrom, said frame and reach bar being pivotally "connected so as to be movable relative to 'each other, a roller'supportin'g said frame, "a pair of scraping members 'pivotally supported attheir rear ends, said pivotal connection perm1tt1ng'sa1d scraping members to swing out and in and to be raised and lowered for the purpose of changing the inlclination of said scrapingmembers and the positlon ,of their forward endsya member slidably arranged on the forward portion of said reach bar, link connections between 'sald slidlng member, said reach bar and said scraping members, said link connections ineluding a link pivotally connected to said sliding member, another link pivotally connected to said reach bar and a third link pivot'ally connected to eacho-f said scraping members so as to permit both a vertical and horizontal movement, said links being pivotally connected together at a point between said reach bar, and said scraping members,

and means for moving said sliding member on said reach bar to swing said scraping members out and in.' r

MELVIN MITCHELL.

GEORGE T, BEAN, J. M. ANDE SON.

can" of this patent may be obtained for five cents each, by addre 's si ng'the bomilflssioner'bf fatenh,

Washington; Di 0;

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