US3195957A - Pavement leveling machine with means for reducing effects of bumps - Google Patents

Pavement leveling machine with means for reducing effects of bumps Download PDF

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Publication number
US3195957A
US3195957A US150039A US15003961A US3195957A US 3195957 A US3195957 A US 3195957A US 150039 A US150039 A US 150039A US 15003961 A US15003961 A US 15003961A US 3195957 A US3195957 A US 3195957A
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US
United States
Prior art keywords
rear wheel
frame
rotary cutter
wheel assembly
pavement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US150039A
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English (en)
Inventor
Cecil W Hatcher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CONCUT Inc
Original Assignee
CONCUT Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CONCUT Inc filed Critical CONCUT Inc
Priority to US150039A priority Critical patent/US3195957A/en
Priority to GB40221/62A priority patent/GB1024845A/en
Priority to FR913694A priority patent/FR1339738A/fr
Priority to AT866862A priority patent/AT244380B/de
Priority to FR914220A priority patent/FR1337738A/fr
Priority to ES282103A priority patent/ES282103A1/es
Priority to DE19621409793 priority patent/DE1409793A1/de
Priority to US272414A priority patent/US3208796A/en
Priority to US272413A priority patent/US3201173A/en
Application granted granted Critical
Publication of US3195957A publication Critical patent/US3195957A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/004—Devices for guiding or controlling the machines along a predetermined path
    • E01C19/008—Devices for guiding or controlling the machines along a predetermined path by reference lines placed along the road, e.g. wires co-operating with feeler elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/22—Safety features
    • B65D90/38—Means for reducing the vapour space or for reducing the formation of vapour within containers
    • B65D90/42—Means for reducing the vapour space or for reducing the formation of vapour within containers by use of particular materials for covering surface of liquids
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/08—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades
    • E01C23/085—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades using power-driven tools, e.g. vibratory tools
    • E01C23/088—Rotary tools, e.g. milling drums

Definitions

  • the invention relates to a bump cutter with means for reducing effect of bumps and more particularly it relates to a self-propelled vehicle having rotatable abrasive wheels for removing bumps from concrete paving such as aircraft landing fields, floors and the like.
  • the invention is an improvement on the bump cutter disclosed and claimed in the following co-pcnding applications, S.N. 615,937 filed October 15, 1956, for Concrete Bump Cutter, referred to hereafter as Case A now Patent No. 3,007,687, November 7, 1961; SN. 706,138 filed December 30, 1957, for Concrete Bump Cutter, referred to hereafter as Case B now Patent No. 3,037,755, June 5, 1962; S.N. 132,183 filed August 17, 1961, for Steering Control for Self-Powered Cutting Machine, division of Case B which is a continuation of Case A, referred to hereafter as Case C, now Patent No. 3,087,712, April 30, 1963.
  • Case B the invention is directed to an arrangement where in the rear of the vehicle frame is pivotally connected to a truck having front and rear wheels which in fact are driving wheels, the truck thus acting as a rear extension frame somewhat of the same general nature as the front extension frame, to reduce the vertical motion at the rear of the vehicle frame in proportion to the lever arms between the front and rear wheels of the truck and the truck pivot.
  • Case C the invention is directed to an improved remote steering control for the self-powered cutting machine.
  • the present invention has for an object to further improve the accuracy with which the level of the cutter is maintained. This is accomplished by providing an im proved bump reducing support for the front wheel suspension for the extension frame, by providing an improved rear wheel suspension wherein a bump at one side of the machine is not reflected into the undesired movement of the other side of the machine, the Width of the cutter head being preferably greater than the width of the rear wheels, and the provision of a hydraulic cylinder and control for snubbing or holding down the cutter to its work, or for raising the cutter head from its work.
  • An important object is to provide Patented July 20, 1965 such an improved rear wheel suspension comprising laterally spaced rear wheel frames having tandem rear wheels driven by a transverse drive shaft on which the rear wheel frames are pivotally mounted independently of each other.
  • the motor for operating the cutter shaft is mounted on the rear of the extension frame, the hydraulic cylinder and piston being connected at their opposite ends to the vehicle frame and the extension frame, with means for supplying fluid pressure to the opposite ends of the cylinder, the pressure when supplied to one end of the cylinder acting to raise the cutter head from its work, and when supplied to the other end of the cylinder, assisting the weight of the motor which drives the cutter shaft to snub the cutter and hold it down to its work.
  • the hydraulic cylinder has a separate control for the alternative operation of lifting the cutter from its work, with coarse and fine controls for the snubber inlet and for the raise out inlet.
  • FIG. 1 is a view in side elevation of a bump cutter according to the present invention.
  • P16. 2 is an enlarged sectional view on line 2-2 of FIG. 1.
  • FIG. 3 is a sectional view on line 3-3 of FIG. 2.
  • FIG. 4 is an enlarged sectional view on line 44 of FIG. 1.
  • FIG. 5 is a sectional view on line 5-5 of FIG. 4.
  • FIG. 6 is a flow diagram of the hydraulic control mechanism employed in connection with the invention.
  • the vehicle 1 has a vehicle frame 2 at the front end of which is rotatably mounted a cutter head 3 on a cutter shaft 4 having a pulley 5 connected by belt 6 to the pulley 7 on the engine 8.
  • Cutter head 3 is disclosed and claimed in Cases A and B and comprises a series of abrasive discs on the cutter shaft with separators for leaving a series of ridges in the pavement, or the abrasive discs may be spaced close enough to make a substantially smooth cut.
  • the engine 8 as shown at 9 is mounted on the rear end of an extension frame 10.
  • Extension frame 10 as shown in FIG. 2 has opposite arms 11 and 12, being somewhat U shaped.
  • the rear end of the extension frame 10 has a hinge connection on a horizontal axis, as shown at 13, with an upright post 14 at each side of the vehicle frame 2, one of these posts being shown in FIG. 1 at 14.
  • the front end of extension frame 10 has a hinge connection 15 on a horizontal axis with the front truck 16 which has a rear caster wheel 17 and a front wheel 18 for steering.
  • the hinge connection 15 includes suitable bearings 19 on the frame 10, the bearing 20 on the truck 16 and a hinge pin or shaft 21.
  • the front wheel 18 has an axle 22, see FIG. 3, carried by a bracket 23 fixed to a vertical shaft 24 having a bearing 25 on the body 26 of the truck and a further bearing 27 in a housing 28 fixed to the body 26.
  • the distance from cutter head 3 to the front wheel means 'or truck 16 is greater than the distance from cutter head 3 to the rear wheel means or rear truck 43.
  • the shaft 24 at its upper end has a worm wheel 29 meshing with a worm 3t rotatably supported on a horizontal axis by bearings 31 and 32 carried by the casing 28.
  • the worm 3%? is connected by a universal coupling 33 to a short steering rod section 34, the latter having a connection through the universal coupling 35 with the front end of the inclined steering rod 36.
  • Steering rod 36 has bearing supports on the extension frame 10 as indicated at 37, 33 and 39.
  • Bearing 39 is a self aligning bearing having a swivel mount to permit steering rod 36 to pivot about hinge 13 while the steering rod is supported from vehicle frame 2 by bearing 39.
  • the rear end of extension rod 36 has a handle or steering Wheel 40 accessible to an operator for whom a seat 41 is provided, this seat being mounted as shown at 42 on the vehicle frame 2;
  • any bump encountered by the forward travel of the front wheel 18 will be reduced in its effect on theexten sion frame 10 in proportion to the relative distances involved between the hinge connection 15 and the wheels 17 and-18.
  • the rear of the vehicle frame '2 is supported by a rear truck 43 which is composed of two truck members 44 and 45 arranged side by side, see FIG; 4.
  • Truck member 45 has front and rear driven Wheels'46 and. 47 having axles 48 and 49 having bearing supports 51, 52 and 53, 54 on the truck frame 55.
  • Axle 48 has a sprocket 6 and axle 49 has a sprocket 57.
  • the other truck member 44 has a truck frame 58 having bearings '59 and 60 for axle 61 of rear driven wheel 62.
  • truck frame 58 has bearings 63, 64 for the axle 65 of front driven wheel 66.
  • Axle 61 has a sprocket 67 and axle 65 has a sprocket 68.
  • the line 113' shows that the width of the cutter head 3 in an axial direction is greater, -viz., 24 inches, then the width tothe outside edges of the wheels of truck 43, viz., 23 inches. The wheels of the truck 43 thus rideon the path cut by the cutter head 3.
  • the vehicleframe 2 as shown in Cases A to C has laterally spaced side arms 83 and 84, see FIG. 4, the rear ends of which are supported bybearings 85 and 86 on the opposite ends 87 and 88 of the drive shaft 70 which thus serves as a hinge connection for the rear end ofthe vehicle frame 2, at a horizontal axis intermediate the frontfend and rear wheels of thetruck members44 and 45'.
  • the truck member or wheel frame 44 is hingedly connectedto the drive shaft 70 by means of bearings-44', and; the truck member or wheel frame 45 is similarly 114and 115 leading tothe reservoir 98.
  • a hydrauliclcylinder 90 see also FIG. 6, has a' hinge connectionv 91 with the extension frame 10, and: having a piston 92 andplunger 93 having a hinge connection 94 with a U shaped br-acket95, which as shown in Cases A to C has opposite vertical arms stop 97 to limit the downward movement of, and determine the height of the cutter head 3.
  • a hydrauliclcylinder 90 see also FIG. 6, has a' hinge connectionv 91 with the extension frame 10, and: having a piston 92 andplunger 93 having a hinge connection 94 with a U shaped br-acket95, which as shown in Cases A to C has opposite vertical arms stop 97 to limit the downward movement of, and determine the height of the cutter head 3.
  • means are providedfor supplyng hydraulic pressure to the opposite ends of cylinder 90, to either raise the cutterhead 3, or to use the hy- 4 sidered generally, includes a reservoir 98, a hand pump 99 for delivering fluid to one end of the cylinder to snub the cutter head'3' down in engagement with the pavement, a gear pump having its inlet connected to the reservoir, a two way valve 106 for delivering fluid from the pump 105 to the other end of the cylinder 90 through conduit 118 to lift the cutter head clear of the pavement, a three-way valve .109 for delivering fluid from the pump 105 to the hydraulic motor 82 through conduits 123 or 124, selectively, to drive the motor in one direction or theother to cause it to drive the vehicle 1 forwardly or rearwardly, and an adjustable relief valve 112 for controlling the fluid pressure of, fluid to'the hydraulic motor 82 irrespective of the direction in which it is driven; Flu-id dumped by relief valve'112 flows through the conduit extending downwardly therefrom to conduit 121 and'back
  • the hand pump 99 is of the reciprocating type and includes a plunger 113 reciprocable by a pivoted handle 100, the
  • check valve associated with the plunger 113 locks the cutter-head 3 in its snubbed condition.
  • :snubbing the cutter head 3 in this manner locks the vehicle and extension frames 2 and 10 together, and makes them in effect a single rigid frame, to apply the maximum possible Weightto the cutter head 3 to maintain it in engagement with the pavement without chattering;
  • a relief valve 103 When it is desired to release the snubbing action, a relief valve 103 is opened to connect the l-ine 101 to lines
  • the valve106 is operated by a handle 107. When it is in one position, other than'neutral, it delivers fluid to a line 118 leading to a cutter head lifting port 108. When it is desired to lowertlie cutter head 3, relief valve 119 is opened and fluid is returned to the reservoir 98 by Way of lines 118, 120, 121,111 and 115. When the valve 106 is in its neutral position, it permits fluid from the pump 105 to flow to the valve 112 and to the valve 109.
  • the valve 109 is a three-way valve operable by a handle When the valve 109 is in a neutral position, it receives. fluid from the .pumpy105 through the line 1'16, and returns it to. thereservoir 98 through a line 122 and the lines 111 and 115. Under such conditions, the hydraulic motor 82.is inoperative and the vehicle 1 is stationary. e
  • valve 109 To drive the vehicle 1 in the forward direction, the valve 109 is placed in an "operating position such that fluid under pressure from the pump105 is delivered to one side of the hydraulic motor 82 through a line 123, the spent-fluid being returned tofthe reservoir through'a line 124 and the lines 122, 111' and 115.
  • the valve 1 09 Conversely, whenit. is desired. to propel the vehicle'l in thereve-rse direct on, the valve 1 09 'isset in aposition to deliver fluid under pressure from the pump 105 to. the opposite side of thehydraulic motor 82through the line 124.
  • FIG. 6 of-the drawings diagrammatically illustrated, therein is a hydraulicsystem which, conthroughthe lines 123, 122, 111 and 1 15.-
  • said rotary cutter means being spaced forwardly from said rear wheel assembly a first longitudinal distance, and said front wheel means being spaced forwardly from said rotary cutter means a second longitudinal distance which is large as compared to said first longitudinal distance so that any tendency of bumps encountered by said front wheel means to move said rotary cutter means vertically is reduced in proportion to the ratio of said first longitudinal distance to said second longitudinal distance;
  • said rear wheel assembly including two transversely spaced rear wheel frames each having two rear wheels rotatably mounted thereon in tandem;
  • (h) means mounting said rear wheel frames on said frame means for independent pivotal movement of said rear wheel frames about a transverse horizontal axis intermediate said tandem rear wheels on said rear wheel frames to further minimize any tendency of bumps in the pavement to cause said rear wheel assembly to move said rotary cutter means vertically.
  • said rotary cutter means being spaced forwardly from said rear wheel assembly a first longitudinal distance, and said front wheel means being spaced forwardly from said rotary cutter means a second longitudinal distance which is largeas compared to said first longitudinal distance so that any tendency of bumps encountered by said front wheel means to move said rotary cutter means vertically is reduced in proportion to the ratio of said first longitudinal distance to said second longitudinal distance;
  • said rear wheel assembly including two transversely spaced rear wheel frames each having two rear wheels rotatably mounted thereon in tandem;
  • a self-propelled, vehicle-type, pavement leveling machine as set forth in claim 4 including means interconnecting said extension frame and said front end of said main frame for raising and lowering said front end of said main frame to raise and lower said rotary cutter means out of and into engagement with the pavement.
  • said rotary cutter means being spaced forwardly from said rear wheel assembly a first longitudinal distance, and said front wheel means being spaced forwardly from said rotary cutter means a second longitudinal distance which is large as compared to said first longitudinal distance so that any tendency of bumps encountered by said front wheel means to move said rotary cutter means vertically is reduced in proportion to the ratio of said first longitudinal distance to said second longitudinal distance;
  • said rear wheel assembly being behind and in line with said rotary'cutter means and the transverse width of said rotary cutter means exceeding 1 that of said rear wheel assembly so that said rear wheel assembly runs on the relatively wide and level path cut by said rotary cutter means to minimize any tendency of bumps in the pavement to cause said rear Wheel assembly to move'said rotary cutter means vertically;
  • said rear wheel assembly including twotransversely spaced rear wheel frames each having two rear wheels rotatably mounted thereon in tandem;
  • said rear wheel assembly further; including a transverse horizontal driveshaft rotatably mounted on said frame means;
  • said rear wheel frames being independently pivotally mounted on said drive shaft, intermediate the tandem rear wheels on said rear wheel frames, so as to further minimize any tendency of bumps in the pavement to cause said rear wheel assembly to move said rotary cutter means vertically;
  • said rear wheel assembly additionally including driving connections between said drive shaft and at least one of said tandem rear wheels on each of said rear wheel frames;and (k)'means. on said frame means and connected to said rotary cutter means and-said drive shaft for driving said rotary cutter means and said 'drive shaft.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Road Repair (AREA)
  • Crushing And Pulverization Processes (AREA)
US150039A 1961-11-03 1961-11-03 Pavement leveling machine with means for reducing effects of bumps Expired - Lifetime US3195957A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
US150039A US3195957A (en) 1961-11-03 1961-11-03 Pavement leveling machine with means for reducing effects of bumps
GB40221/62A GB1024845A (en) 1961-11-03 1962-10-24 A machine for levelling a ground surface such as a paved of concrete-covered surface
FR913694A FR1339738A (fr) 1961-11-03 1962-10-29 Perfectionnements à la réduction des pertes calorifiques et autres à partir de liquides
FR914220A FR1337738A (fr) 1961-11-03 1962-11-02 Appareils à couper, ou araser, les bosses d'aires en béton, avec moyens pour réduire l'effet de bosse
AT866862A AT244380B (de) 1961-11-03 1962-11-02 Fahrzeugartige Bodenbelagnivelliermaschine
ES282103A ES282103A1 (es) 1961-11-03 1962-11-02 Un aparato cortador de bombeos
DE19621409793 DE1409793A1 (de) 1961-11-03 1962-11-02 Vorrichtung zum Nivellieren der Oberflaeche von Betonstrassen od.dgl.
US272414A US3208796A (en) 1961-11-03 1963-04-11 Pavement leveling machine having hydraulically snubbed cutter head
US272413A US3201173A (en) 1961-11-03 1963-04-11 Bump cutter with means for reducing effect of bumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US150039A US3195957A (en) 1961-11-03 1961-11-03 Pavement leveling machine with means for reducing effects of bumps

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US3195957A true US3195957A (en) 1965-07-20

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US150039A Expired - Lifetime US3195957A (en) 1961-11-03 1961-11-03 Pavement leveling machine with means for reducing effects of bumps

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US (1) US3195957A (de)
AT (1) AT244380B (de)
ES (1) ES282103A1 (de)
FR (2) FR1339738A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4896995A (en) * 1988-03-24 1990-01-30 Simmons Joseph R Grinding apparatus
US5083839A (en) * 1990-06-27 1992-01-28 Rick Younger Apparatus for grooving or grinding pavement
US20080246328A1 (en) * 2003-12-04 2008-10-09 Thomas Mannebach Automotive Machine for Producing Carriageways

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX150177A (es) * 1978-11-09 1984-03-29 Explosafe Sa Mejoras a recipiente para almacenar,retener y extinguir,liquidos inflamables por ejemplo petroleo y gasolina

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1084810A (en) * 1912-08-12 1914-01-20 A F George Road-surfacing machine.
US1145893A (en) * 1914-04-07 1915-07-13 Henry P Hewett Power transmission.
US1791865A (en) * 1928-07-03 1931-02-10 Bert M Fordyce Disintegrating apparatus for road-surfacing materials
US2222904A (en) * 1940-04-05 1940-11-26 Cleveland Tractor Co Tractor steering mechanism
US2295085A (en) * 1941-09-08 1942-09-08 Warner L Keehn Land vehicle
US2718270A (en) * 1950-09-20 1955-09-20 Scammell Lorries Ltd Tandem axle articulated driveshafts having uniform velocity ratio
US2890872A (en) * 1956-11-19 1959-06-16 Hall Charles Cecil Asphalt cutter operating under the weight of the machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1084810A (en) * 1912-08-12 1914-01-20 A F George Road-surfacing machine.
US1145893A (en) * 1914-04-07 1915-07-13 Henry P Hewett Power transmission.
US1791865A (en) * 1928-07-03 1931-02-10 Bert M Fordyce Disintegrating apparatus for road-surfacing materials
US2222904A (en) * 1940-04-05 1940-11-26 Cleveland Tractor Co Tractor steering mechanism
US2295085A (en) * 1941-09-08 1942-09-08 Warner L Keehn Land vehicle
US2718270A (en) * 1950-09-20 1955-09-20 Scammell Lorries Ltd Tandem axle articulated driveshafts having uniform velocity ratio
US2890872A (en) * 1956-11-19 1959-06-16 Hall Charles Cecil Asphalt cutter operating under the weight of the machine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4896995A (en) * 1988-03-24 1990-01-30 Simmons Joseph R Grinding apparatus
US5083839A (en) * 1990-06-27 1992-01-28 Rick Younger Apparatus for grooving or grinding pavement
US20080246328A1 (en) * 2003-12-04 2008-10-09 Thomas Mannebach Automotive Machine for Producing Carriageways
US7918512B2 (en) 2003-12-04 2011-04-05 Wirtgen Gmbh Automotive machine for producing carriageways
US20110140505A1 (en) * 2003-12-04 2011-06-16 Wirtgen Gmbh Automotive Machine For Producing Carriageways
US8075063B2 (en) 2003-12-04 2011-12-13 Wirtgen Gmbh Automotive machine for producing carriageways
US8840191B2 (en) 2003-12-04 2014-09-23 Wirtgen Gmbh Automotive machine for producing carriageways
US9068304B2 (en) 2003-12-04 2015-06-30 Wirtgen Gmbh Automotive machine for producing carriageways

Also Published As

Publication number Publication date
FR1339738A (fr) 1963-10-11
FR1337738A (fr) 1963-09-13
ES282103A1 (es) 1963-04-01
AT244380B (de) 1966-01-10

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