US3693722A - Fine grading device for rubber tire road grader - Google Patents

Fine grading device for rubber tire road grader Download PDF

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Publication number
US3693722A
US3693722A US62917A US3693722DA US3693722A US 3693722 A US3693722 A US 3693722A US 62917 A US62917 A US 62917A US 3693722D A US3693722D A US 3693722DA US 3693722 A US3693722 A US 3693722A
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United States
Prior art keywords
blade
auger
frame
extending
pivot
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Expired - Lifetime
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US62917A
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English (en)
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Robert L Brown
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BROHIGBU Ltd
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BROHIGBU Ltd
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
    • E02F3/78—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices with rotating digging elements
    • E02F3/783—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices with rotating digging elements having a horizontal axis of rotation
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
    • E02F3/7604—Combinations of scraper blades with soil loosening tools working independently of scraper blades
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S37/00—Excavating
    • Y10S37/907—Automatic leveling excavators

Definitions

  • a grading blade and parallel rotary auger are supported on an auxiliary frame transversely with respect to a grader vehicle from which the frame is supported with the auger being connected to the blade for unitary pivotal movement about a pivot point on the frame between the front of the blade and the rear of the auger in general vertical alignment with the cutting edge of the blade so that the height of the auger can be pivotally adjusted by hydraulic cylinder means with respect to the cutting edge of the blade for differing soil conditions by pivoting the auger and blade with there being a negligible vertical displacement of the cutting edge of the blade; an automatically operable control means actuates hydraulic cylinders supporting the auxiliary frame from the vehicle in response to signals from a guide line extending along the path of movement of the vehicle -for maintaining the cutting edge of the blade at a given elevation with respect to the guide line regardless of the height of the auger with respect to the cutting edge of the blade as adjusted by the
  • lt is the object of thisinvention to provide anew and improved fine grading devicecapable of high grading accuracy and also capable ofbeing mounted on a conventional road grading machine.
  • I I v Obtainment of the object of'thisinvention has been achieved through the provision of a grading device which can be attached to a conventional road grader and which includes a blade extending transversely across the path'of movement of the grader with a rotary auger being closely spacedforwardly of theblade.
  • rotary auger is continuously driven by hydraulic motor means for removing the majorportion of the earth in front of the blade and depositing it alongside the work path as the grader moves along the surface being graded. In fact,” optimal grading accuracy is obtained by having the blade remove only a small percentage of the total earth being removed during the passage of the device along the work path.
  • the auger and the blade are unitarily connected together on an auxiliary support frame for vertical ad justment by automatically controlled hydraulic cylinder means which is controlled by a guide line stretched along each or either side of the work path.
  • the lower or cutting edge of the blade should always be agiven fixed distance below the guideline. This fixed distance is maintained by constant monitor- 'ing of the guide line by conventional means as the machine moves along the work path and consequent control of the cylinders supporting the blade and auger.
  • V the cutting edge of the blade.
  • This height variation is manually maintained by the operator of the device in accordance with the nature of the soil through which the blade and auger are being moved,
  • this adjustment of the height of the auger with respect to the blade should be made witha minimumamount of vertical displacementof the lower edge .of the blade in order to maintain a'fixed vertical distance between the lower edge of the blade and the guide line.
  • the vertical distance between the lower edge of the auger and the lower edge of the blade which determines the amount of bite that the auger takes of the-earth in the work .path as it is slowly advanced alongthe work path should be adjustable "with a minimum variation in the height of the blade cutting edge.
  • this invention through the use of a unitary connection between the blade and the auger so that they are supported by a unitary framework with this framework being mounted for pivotal-movementabout an axis spaced substantially in vertical alignment with the cutting (lower) edge of the'blade forward of the front face of the blade between the blade and the auger.
  • the pivot-axis is also in substantial horizontal alignment with the axis of rotation of the auger. Consequently, this critical location .of the :pivot axis provides a substantial vertical displacement of the auger with respect to the blade when the blade and auger are unitarily pivoted with practically no vertical displacement of the blade occurring.
  • the entire inventive assembly can be attached to conventional existing-control arms of a conventional road grader by' the automatically controlled doubleacting hydraulic cylinders connected 'toball and socket connectors on the grader.
  • the front of the auxiliary frame is also connected to the grader-by conventional ball and socket arrangement.
  • the ball and socket connectors are those that are currently'employed for supporting a conventional blade frame on "road graders presently in use. Consequently, the fine grading atthe elimination of all slippage of the-rear drive wheels of the grader which arepassing over the surface being graded.
  • Such slippage or spinning of the wheels creates indentations in the finished surface and eausestheentire machine to settle downwardlyso suddenly that it is difficult .for 'the automatic control device system to .react in time to maintain a finished surface that is smooth and at the correct elevation.
  • the adjustably mounted rotary auger precedingthecutting edge of the blade is vertically adjustably mounted so :that the cutting edge of the blade removes only a small amount of material from the surface being graded and the'forward driving power conveyed through the drive-wheels is consequently substantially reduced.
  • the auger bite can be adjusted to compensate for variations in density or hardness of the soil to prevent spinning of the wheels as the grader moves from one typeof soil to another.
  • the auger removes the major portion of the soil being'removed, along the work path and this removal is effected entirely by virtue of rotation of the auger, the resistance to forward movement of the grader is much less than would be the case if the blade were the soledev ice for removing the soil above the grade level.
  • the grader be capable of advancing at a very slow rate of speed so that the automatic control device for maintaining the height of the blade at the desired elevation have sufficient reaction timejin which to make corrective movements.
  • This slow speed slow drive devices on the grader and high power requirements of the hydraulic motor for driving the auger are met by adding an auxiliary high capacity hydraulicpump to the motor grader, power take-off shaft.
  • FIG. 1 is a perspective view of the preferred embodiment-of the inventive concept
  • FIG. 2 is a side-elevational view of the preferred embodiment with portions removed for clarity;
  • FIG. 3 is a plan view of the preferred embodiment
  • FIG. 4 is a sectional view taken along lines 44 of FIG. 3
  • a FIG.-5 is a sectional view taken along lines 5-5 of FIG. 4; I
  • FIG. 6 is a sectional view taken along lines 66 of FIG. 3; and t FIG. 7 is a sectional view. taken along lines' 7 7 of FIG. 3. 1 t
  • FIG. 2 it will be seen that the I preferred embodiment of the invention, which is generally designated 10, is associated with a conventional road grader 11 having drive wheels 12 and steering control wheels '13 on an elongated main frame member 14 for supporting work attachments depending therefrom. Additionally, the grader is provided with adrive motor for driving wheels'l2 and the various en gine accessories.
  • the preferred embodiment of the invention is suspended from the main frame 14 of the conventional grader by ball and socket connections 15 attached to control arms 16 (only one of which is shown in FIG. 2) which extend along each side of frame 14. Arms 16 are normally employed for supporting a conventional grader blade.
  • the preferred embodiment includes a main attachment frame generally designated F and which includes a horizontal draw bar 20, an end connector frame member 22 (FIG.6), a semi-circular arcuate frame member 24 (FIG. .4) and a transversely extending main cross piece 26 (FIGS. 1 and 4) which provides support for the other components of the grading attachment.
  • F main attachment frame generally designated F and which includes a horizontal draw bar 20, an end connector frame member 22 (FIG.6), a semi-circular arcuate frame member 24 (FIG. .4) and a transversely extending main cross piece 26 (FIGS. 1 and 4) which provides support for the other components of the grading attachment.
  • Draw. bar comprises a forward portion consisting of first and second parallel channel or box frame. members 28 and 30 (FIGfl) which have a connector plate 32 welded to their forward ends. A second connector plate 34 is welded to the rearmost end of the end connector frame 22 and the connector plates 32 and 34 are bolted together to provide a fixed rigid connection cal bearing sleeves 66 (FIGS. 7 and 6) which provide a betweenthe elements 28, 30 and 22.
  • the purpose of providing the detachable connection between these elements is to reduce the overall size to enable loading of the attachment, upon a truck for transportation. Otherwise the length of the components would exceed most statutory width lengths and could' not be legally transported in many states.
  • a plurality'of connector frame members 22 having different length and height dimensions can be 'provided for enabling connection of the device to different road graders in which the positions of thefemale pivot socket82 will vary.
  • the size of the male'connector ball 80 can alsobe varied in order to accommodate various female pivot sockets of different sizes. Consequently, the device will be interchangeably mountable upon a wide variety of road graders having different height female pivot sockets and various frame lengths.
  • the rearmost portion of the draw bar 20 is formedof a pair of identical frame components 36. and 38 connected on their forward ends by a curved plate 40 (FIG. 6) and which are connected to the upper surface of the frame components 28 and 30 respectively to extend rearwardly for pivotal connection to the transverse main cross piece 26.
  • This pivotal connection of components 36 and 38-to cross piece 26 is enabled by means of a pivot pin 42 mounted in a bracket'44extending from the .rearmost ends of members 36 and 38 and a pair of bracket plates '46 and 48 welded to the front surface of cross piece 26.
  • Pin 42 extends through bracket 44 and plates 46, 48 as shown in FIG. 6.
  • a brace frame 50 is attached to the upper surface frame components 28 and 30 and has a top'plate 52 1 connected to the rear of the components 36, 38.
  • a curved plate 54 completes a curved opening through the brace frame through which arcuate frame 24 ex- 4 lows frame 24 etc. to pivot about pin 42 by virtue of the fact that the ends of frame 24 are weldingly connected to each'end of the main transverse frame component
  • First and second curved vertically extending pivot support plates 58 and 60 are respectively welded to the extreme ends of the main transverse frame component 26 and respectively have horizontal arms 58 and 60 embracingly curving around the rear portion of thearcuate frame member 24 as shown in FIG. 1;
  • the horizontal arms 58 and 60" are welded to the external surface of the curved frame 24 as shown in FIG. 4.
  • Plates 58 and 60 extend downwardly to terminate at their lowermost ends in pivot shoe means 62 and 64 (FIG. 3) respectively welded to their lower ends.
  • the pivot shoe means 62 and 64 respectively support identipivotal support for a bladeassembly to be discussed hereinafter.
  • main attachment or auxiliary frame F.c onsists of a unitary structure comprising the arcuate frame 24, the main transverse member 26, draw bar elements 36, 38, 28 and 30 and thepivot support plates 58 and 60.
  • Additional strength and rigidity is provided the frame F by means of a rearwardly extending brace plate extending rearwardly from the main transverse frame component 26 adjacent the entire middle thereof, gusset plates 72 and 74 respectively welded adjacent each end of member 26 and to the pivot support plates 58 and as best shown in FIG. 3 and a pair of rod brace members 76 welded to the lower ends of the pivot support plates 58 and 60 and to plate on the middle portion of member 26 as clearly shown in FIG. 3.
  • a forwardly extending linear brace plate 78 extends forwardly from the main transverse frame component 26 along the front face thereof and along the entire length thereof as best shown in FIG. 1.
  • Support for the forwardmost end of the frame F is provided by a pivot ball type male connector member 80 attached to the forward end of the connector frame 22 and receivable in a conventional female pivot socket 82 on the grader frame as best shown in FIGS. 2 and 6.
  • the rear portion ofthe frame F is supported by ball and socket connectors on support bracket plates 84 and 86 extendingupwardly from the upper surface of arcuate frame 24 and connected to piston rods.8 8 and 90 of control cylinders 92 and 94 which have ball socket connectors 15 attached to their uppermost ends.
  • the ball and socket connectors 15 are connected to the control arms 16 of the grader as has been noted previously.
  • Bearing sleeves 66 which are welded to the forward ends of pivot shoes 62 and 64 provide support for a scraper blade which extends perpendicular to the path of travel of the grader 11.
  • Support for blade 100 is provided by'a pair of pivot pins 102 which are each mounted on the forward end of and between a pair of bracketplates 104.
  • Bracket plates 104 are attached to blade I00 and extend forwardly from the front face 101 of blade 100 as shown in FIG. 7. It shouldfbe noted that the pivot pins 102 are located in substantial vertical alignment with the lower edge of the blade 100.
  • pivot shoe members 62 and 64 each extend forwardly between two of the plates 104 through respective openings in blade 100 to terminate in front of the forward, surface 101 of the blade in the manner illustrated by pivot shoe 64 in FIGS. 6 and 7. It is this construction which provides for pivotal movement of the blade 100 about the axes of pins 102.
  • a rotary auger 106 is supported for rotation in bearings mounted in auger support plates 108 and 110 which are respectively pivotally connected to blade 100 by pins 114 and 116 extending from brackets mounted adjacent the top of the front face 101 at each end of the blade 100.
  • the purpose of the pins 114 and 116 is to provide for initial pivotal adjustment of the auger support plates 108 and 110 and auger 106 supported thereon with respect to the blade 100. Following such adjustment, the support plates 108 and 110 and the supported auger 106 are locked in fixed relationship with respect to the blade 100.
  • FIGS. 6 and 7 illustrate the manner in which the auger 106 is initially adjustably positioned with respect to the blade 100.
  • the rear side of blade 100 is provided with a pair of rearwardly extending adjustment brackets 118 and 119 (FIG. 3) which are welded to the blade adjacent each end thereof above a rear brace plate 120 extending along the length of blade 100 on the rear face of the blade.
  • Identical rod and sleeve adjustment means are pivotally connected to the brackets 118 and 119 by a pivot pin 124 and to the upper or rearmost end of the support plates 108, 110 by a pivot pin 126.
  • Adjustment of the two adjustment means 122 connecting each end of blade 100 to the auger support plates 108, '1 10 serves to pivot the auger support plates 110 and 108 about the pins 114 and 116 fixed to the ends of blade 100. Consequently, the position of the auger 106 is adjustedwith request to blade 100 is an obvious manner as shown in FIG. 7. Once the desired adjustment has been achieved, no further adjustment is normally necessary and blade 100, auger support'plates 108, 110 and auger 106 constitute a unitary structure.
  • the blade 100, auger support plates 108, 110 and auger 106 are consequently fixedly connected to each other to constitute a unitary structure.
  • This unitary structure is pivotally supported by coaxial pins 102 fixed to blade 100 and pivotally extending through sleeves 66 on the forward ends of pivot shoes 64 and 62 as was previously discussed. Therefore, the auger 106and the blade 100 which are connected by the elements 108, 110 and 122 pivot about the axis of pins 102.
  • Pivotal movement of the unitary blade-auger structure 100, 106 etc. for lifting or lowering the auger is enabled by first and second unit adjusting places 138 and 140 which are welded to the rear side of the blade 100 adjacent back brace plates 141 as best shown in FIG. 3.
  • the upper ends of plates 138 and 140- are respectively connected to cylinder 138' and 140 which are pivotally connected to frame members 141 extending from arcuate frame 24 as shown in FIG. 1.
  • Auger 106 is driven by a hydraulic drive motor 142 (FIGS. 1 and 3) through a step-down transmission 144 connected to the auger support plate 108.
  • the output of step-down transmission 144 is to a drive sprocket in a chain housing 146 on the right side of support plate 108 as viewed in FIG. 4.
  • a chain 148 is driven by the output from the transmission 144 and extends about a sprocket on an auger drive shaft 150 extending through auger support plate 108. Consequently, rotary movement is imparted to the auger 106 from the motor 142.
  • a separate identical hydraulic motor could be mounted on the plate 110 if such should be desired; however, it
  • Auger 106 comprises a spiral plate extending outwardly'from a heavy body cylinder 162 along the entire, length of the body cylinder. Additionally, the auger is provided with a plurality of intermediate digger teeth 164 positioned intermediate the adjacent convolutions of the spiral blade 160 which extend outwardly radially approximately one or two inches (depending upon soil conditions) beyond the outer periphery of blade 160 for dislodging rocks etc. as the auger is rotated in the direction of the arrow in FIG. 6.
  • a shield 166 extends forwardly from the upper edge of the blade 100 to prevent such material from being thrown rearwardly toward the operator by the rotation of the auger 106.
  • a control means support beam 180 extends outwardly from a hollow box channel. 182 connected to the top of the main transverse member 26. Such a beam 180 extends from each side of the device andis adjustably retained by clamping means 186 associated with the channel 182 in an obvious manner.
  • Conventional line detecting switch means, sensors or tracers 190 are supported on the'ends of the beam 180 for detecting a conventional wire or line 192 extending along each side of the path of movement of the machine.
  • the detecting means 190 etc. is conventional and forms no part of this invention. However, it should be understoodthat the'detecting means 190 etc. provides electric over hydraulic signals to the supporting cylinders 92 and 94 for raising and lowering the blade to maintain the lower or cutting edge of the blade 100 a fixed vertical distance below the guide lines 192.
  • Such adjustment serves to vary the bite taken by the auger as it is moved forwardly through the soil 200 being graded. It has been found that optimum grading accuracy can easily be obtained with the auger 106 removing the majority of the soil and only a small percentage of the soil being removed 'by'blade 100. Normally, the best results are obtained with thelowermost portion of the digger teeth 164 on auger 106 being spaced approximately even with or slightly above the lower or cutting head edge of blade 100. Therefore, the subject device serves to provide an extremely accurate .grade as the grader 11 is moved slowly forward with the auger 106 rotating in the directionof the arrow in FIG. 2.
  • Auger 106 removes the majority of the earth being graded and blade 100 provides the finishing accuracy
  • Grader 11 is normally driven at a very slow speed of approximately one mile perhour and auger 106 is rotated at approximately 80 rpm. The necessary slow forward speed of movement requires the use of an extra low gear in the grader.
  • said earthcutting auger includes a plurality of radially extending digger teeth and a spiral blade.
  • pivotal support means supporting said blade means and rotary auger for unitary movement includes first and second vertically extending spaced pivot support plate means extending downwardly from said attachment frame along the rear side of said blade, pivot shoe means extending forwardly from the lower edge of each of said pivot support plate means througha respective aperture in said blade and terminating forwardly of the forward surface of said blade, a pivot pin means connecting the forward end of each of said pivot shoes to bracket plates extending forwardly from said blade so that said blade and auger are pivotally supportedby said pin for pivotal movement by said actuator means.
  • said pivotal support means supporting said blade means and rotary auger for unitary movement includes first and second vertically extending spaced pivot support plate means extending downwardly from said attachment frame along the rear side of said blade, pivot shoe means extending forwardly from the lower edge of each of said pivot support plate means through a respective aperture in said blade and terminating forwardly of the forward surface of said blade, a Pivot pin means connecting the forward end of each of said pivot shoes to bracket plates extending forwardly from said blade so that said blade and auger are pivotally supported by said pivot pin for pivotal movement by said actuator means.
  • control means for moving said attachment frame comprises first and second hydraulic cylinders connected between the main frame of the vehicle and said attachment frame whereby actuation of said cylinders serves to vertically move said blade and said auger.
  • said linkage connecting means upon which said rotary auger means is mounted for rotation comprises first and second auger support plates each respectively pivotally connected intermediate its end to each end of said blade for pivotal movement about an axis transverse to the path of movement of said vehicle with said auger being mounted for rotation on one end of said plates and adjustably extendable and lockable adjustment means connecting said blade and the other ends of said first and second auger support plates for fixedly locking the relative position of said auger and said blade in a desired position of adjustment.
  • attachment frame means includes a transversely extending main cross piece, a semi-circular arcuate frame member connected adjacent each end of said transversely extending main cross piece and having its arcuate portion extending forwardly therefrom, draw bar means extending forwardly from a pivotal connection connecting said draw bar means to the middle of said main cross piece, pivotal connection means connecting the forward end of said draw bar to said vehicle, and connecting means connecting said forwardly extending portion of said arcuate frame to said draw bar means with said first and second hydraulic cylinders extending from said vehicle being connected to said arcuate frame for supporting said arcuate frame.
  • said means connecting said arcuate frame to said draw bar comprises removable pin means which, when removed, permits pivotal movement of said draw bar with respect to said arcuate frame and said transversely extending main cross piece to reduce the overall width of the grading means by permitting movement of the auger and blade to a canted position relative to the axis of the supporting vehicle for movement to a different location.
  • said draw bar comprises a forward portion consisting of first and second parallel frame members, a connector frame removably connected to the forward end of said parallel frame members and a pair of rear frame components extending parallelly from the upper surface of said forward parallel frame components for connection to said transversely extending main cross piece.
  • said actuator means for unitarily pivoting said auger and said blade about said pivot axis includes first and second hydraulic cylinder means connected between said attachment frame and said blade so that actuation of said first and second cylinder means serves to unitarily pivot said blade, said linkage connecting means and said rotary auger.
  • pivotal support means supporting said blade means and rotary auger for unitary movement includesfirst and second vertically extending spaced pivot support plate means extending downwardly from said attachment frame along the rear side of said blade, pivot shoe means extending forwardly from the lower edge of each of said pivot support plate means through a respective aperture in said blade and terminating forwardly of the forward surface of said blade, a pivot pin means connecting the forward end of each of said pivot shoes to bracket plates extending forwardly from said blade so er are pivotally sup orted by al movement by sat that said blade and aug vo actuator said pivot pin for pr means.
  • control means for moving said attachment frame comprises first and second hydraulic cylinders connected between the main frame of the vehicle and said attachment frame whereby actuation of said cylinders serves to vertically move said blade and said auger unitarily.
  • said linkage connecting means upon which said rotary auger means is mounted for rotation comprises first and second auger support plates each respectively pivotally connected intermediate its ends to each end of said blade for pivotal movement about an axis transverse to the path of movement of said vehicle with said auger being mounted for rotation on one end of said plates and adjustably extendable and lockable threaded adjustment means connecting said blade and the other ends of said first and second auger support plates for fixedly locking the relative position of said auger and said blade in a desired position of adjustment.
  • said frame means includes a transversely extending main cross piece, a semi-circular arcuate frame member connected adjacent each end of said transversely extending main cross piece and having its arcuate portion extending forwardly therefrom, draw bar means extending forwardly from a pivotal connection connecting said draw bar means to the middle of said main cross piece, pivotal connection means connecting the forward end of said draw bar to said vehicle, and connecting means connecting forwardly extending portion of said arcuate frame to said draw bar means with said first and second hydraulic cylinders extending from said vehicle being connected to said arcuate frame for supporting said arcuate frame.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Earth Drilling (AREA)
US62917A 1970-08-11 1970-08-11 Fine grading device for rubber tire road grader Expired - Lifetime US3693722A (en)

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US6291770A 1970-08-11 1970-08-11

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US (1) US3693722A (enExample)
AU (1) AU452014B2 (enExample)
BR (1) BR7105138D0 (enExample)
CA (1) CA933750A (enExample)
FR (1) FR2104193A5 (enExample)
ZA (1) ZA715173B (enExample)

Cited By (14)

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US3841006A (en) * 1973-03-01 1974-10-15 V Kiselev Excavating and grading machine with adjustable rotary cutting head
US4041623A (en) * 1975-09-22 1977-08-16 Miller Formless Co., Inc. Grade cutting machine
US4185698A (en) * 1978-02-27 1980-01-29 J. I. Case Company Adjustable auger dozer
US4197032A (en) * 1978-08-02 1980-04-08 Power Curbers, Inc. Apparatus and method for forming a continuous strip of paving
US4307524A (en) * 1980-06-03 1981-12-29 Leaf Enterprises, Inc. Ice removing attachment for a vehicle
US4331204A (en) * 1980-03-21 1982-05-25 White Robert E Tillage implement
US4775014A (en) * 1986-02-06 1988-10-04 Bombardier-Rotax-Wein Productions- Und Vertriebsgesellschaft M.B.H. Ground-working implement
US4892154A (en) * 1985-02-08 1990-01-09 Bombardier-Rotax-Wien Produktions- Und Vertriebsgesellschaft M.B.H. Ground-working apparatus with rotary tiller
US4936392A (en) * 1988-11-28 1990-06-26 Kevin Kitchin Road shoulder grading attachment
US5799736A (en) * 1994-10-11 1998-09-01 R&R Enterprises Inc. Dirt distribution method
US6068065A (en) * 1998-04-20 2000-05-30 Mehew; Wayne Roller attachment for road grader
US9011039B2 (en) 2011-03-24 2015-04-21 Rm Equipment, Llc Apparatuses for servicing roadways
EP3301223A1 (de) * 2016-09-30 2018-04-04 Florian Lagger Vorrichtung zum sanieren und profilieren von beschädigten wassergebundenen wegdecken
US11326323B2 (en) * 2020-02-11 2022-05-10 Bernard E. Wielenberg Dirt contouring and grading device

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FR2222497B1 (enExample) * 1973-03-22 1976-06-11 Inst Lesovodstva Mek
FR2617216B1 (fr) * 1987-06-23 1990-12-14 Gal Sarl Procede de travail permettant d'araser les accotements de chaussees et machine permettant de mettre en oeuvre ce procede

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US1883404A (en) * 1928-08-11 1932-10-18 Ronning Adolph Road maintainer
US3423859A (en) * 1965-04-07 1969-01-28 Machinery Inc Const Road construction methods and apparatus
US3490539A (en) * 1966-07-27 1970-01-20 Marvin L Hilmes Surface preparation and grading machine including box planer assembly and grade/slope control mechanism therefor
US3568778A (en) * 1969-01-23 1971-03-09 Cmi Corp Motor grader apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1883404A (en) * 1928-08-11 1932-10-18 Ronning Adolph Road maintainer
US3423859A (en) * 1965-04-07 1969-01-28 Machinery Inc Const Road construction methods and apparatus
US3490539A (en) * 1966-07-27 1970-01-20 Marvin L Hilmes Surface preparation and grading machine including box planer assembly and grade/slope control mechanism therefor
US3568778A (en) * 1969-01-23 1971-03-09 Cmi Corp Motor grader apparatus

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3841006A (en) * 1973-03-01 1974-10-15 V Kiselev Excavating and grading machine with adjustable rotary cutting head
US4041623A (en) * 1975-09-22 1977-08-16 Miller Formless Co., Inc. Grade cutting machine
US4185698A (en) * 1978-02-27 1980-01-29 J. I. Case Company Adjustable auger dozer
US4197032A (en) * 1978-08-02 1980-04-08 Power Curbers, Inc. Apparatus and method for forming a continuous strip of paving
US4331204A (en) * 1980-03-21 1982-05-25 White Robert E Tillage implement
US4307524A (en) * 1980-06-03 1981-12-29 Leaf Enterprises, Inc. Ice removing attachment for a vehicle
US4892154A (en) * 1985-02-08 1990-01-09 Bombardier-Rotax-Wien Produktions- Und Vertriebsgesellschaft M.B.H. Ground-working apparatus with rotary tiller
US4775014A (en) * 1986-02-06 1988-10-04 Bombardier-Rotax-Wein Productions- Und Vertriebsgesellschaft M.B.H. Ground-working implement
US4936392A (en) * 1988-11-28 1990-06-26 Kevin Kitchin Road shoulder grading attachment
US5799736A (en) * 1994-10-11 1998-09-01 R&R Enterprises Inc. Dirt distribution method
US6068065A (en) * 1998-04-20 2000-05-30 Mehew; Wayne Roller attachment for road grader
US9011039B2 (en) 2011-03-24 2015-04-21 Rm Equipment, Llc Apparatuses for servicing roadways
EP3301223A1 (de) * 2016-09-30 2018-04-04 Florian Lagger Vorrichtung zum sanieren und profilieren von beschädigten wassergebundenen wegdecken
US11326323B2 (en) * 2020-02-11 2022-05-10 Bernard E. Wielenberg Dirt contouring and grading device

Also Published As

Publication number Publication date
BR7105138D0 (pt) 1973-04-19
FR2104193A5 (enExample) 1972-04-14
CA933750A (en) 1973-09-18
ZA715173B (en) 1972-04-26
AU3176471A (en) 1973-02-01
AU452014B2 (en) 1974-08-22

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