US3657831A - Offsetting cable plow - Google Patents

Offsetting cable plow Download PDF

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Publication number
US3657831A
US3657831A US36085A US3657831DA US3657831A US 3657831 A US3657831 A US 3657831A US 36085 A US36085 A US 36085A US 3657831D A US3657831D A US 3657831DA US 3657831 A US3657831 A US 3657831A
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plow
support bracket
arms
cylinder support
plow share
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Expired - Lifetime
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US36085A
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Alvin W Kant
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American Tractor Equipment Corp
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American Tractor Equipment Corp
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B13/00—Ploughs or like machines for special purposes ; Ditch diggers, trench ploughs, forestry ploughs, ploughs for land or marsh reclamation
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B59/00—Devices specially adapted for connection between animals or tractors and agricultural machines or implements
    • A01B59/06—Devices specially adapted for connection between animals or tractors and agricultural machines or implements for machines mounted on tractors
    • A01B59/065—Devices specially adapted for connection between animals or tractors and agricultural machines or implements for machines mounted on tractors for ploughs or like implements
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B63/00—Lifting or adjusting devices or arrangements for agricultural machines or implements
    • A01B63/02—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors
    • A01B63/023—Lateral adjustment of their tools

Definitions

  • a cable plow is provided which is mounted at the rear of a suitable dirigible vehicle such as a crawler-type tractor.
  • the cable plow is supported on a mounting plate at the rear of the vehicle for movement transversely of the vehicle by means of a vertical pin which is supported immediately adjacent to the mounting plate on the vehicle.
  • FIG. 1 is a perspective view of the rear of the vehicle showing the cable plow of this invention in position.
  • FIG. 2 is a side elevation of the cable plow structure of this invention.
  • FIG. 3 is a plan view of the cable plow embodying this invention, the solid lines showing the plow structure in actual alignment with the major axis of the vehicle while the view in phantom lines shows the plow offset with respect to such axis.
  • a dirigible vehicle such as a track-laying type tractor
  • a mounting plate 7 is provided at the rear of the tractor.
  • Upper and lower horizontally extending brackets 8 and 9 are secured to the mounting plate 7.
  • a cylinder support bracket, generally indicated at 11, is supported on the brackets 8 and 9 for transverse movement of the vehicle by upper and lower pairs of spaced ears, numerals 12 and 13 indicating the upper pair of ears and numerals 14 and 16 indicating the lower pair of ears, the pairs of ears being respectively secured to the brackets by pins 17 and 18.
  • the cylinder support bracket 11 is movable transversely of the vehicle 6 by hydraulic cylinder and piston devices 21 and 22 pivoted at 20 on either side of the cylinder support bracket 11.
  • the piston rods from each cylinder and piston structure 21 and 22 are indicated at 23 and 24. These are attached by pins 26 and 27 to the upper brackets 8.
  • a pair of arms 31 are welded into a V-shaped unitary structure. This structure is hinged by pins 33 on the cylinder support bracket 11 while a lower arm 32 is hinged by pin 34 on the cylinder support bracket.
  • the arms extend rearwardly and are secured by pins 36 and 37 to a frame 38.
  • the arms provide a parallelogram structure, the vertical position of which is controlled by a cylinder 41 mounted between opposite sides of the cylinder support bracket 11 by bearings 42.
  • a piston rod 43 extends from the cylinder 41 and is attached as at 44 to arm 32, thus permitting the vertical relation of the parallelogram provided by the arms 31 and 32 with respect to the ground to be altered at will by means of fluid application to the cylinder 41 and its contained piston (not shown).
  • a U-shaped plow share holder 46 Extending rearwardly from theframe 38 is a U-shaped plow share holder 46 having opposite ears 47 and 48 extending on either side of the frame 38 and supported thereon by a vertical pin 49.
  • the plow share holder 46 is moved angularly with respect to the frame 38 by a cylinder and piston structure, generally indicated at 51, which is mounted upon bracket 52 on one side of the frame 38.
  • the piston rod 53 from cylinder and piston 51 is attached to the plow share holder 46 by pin 54 being fitted in an car 56 provided on the side of the plow share holder 46.
  • the cable plow share is generally indicated at 61 and includes a sharp forwardly extending hardened cutting point 62. Hinged on the rear edge of the cable plow share by bracket support 63 is the cable feed tube 64 which is constructed and operates in a well-known manner.
  • the relation of the plow to the supporting structure in the device shown is controlled by the cylinder piston structure, generally indicated at 66, the cylinder being mounted in opposite brackets 67 provided upon the top of the plow share holder 46.
  • the piston rod 68 which extends from the piston cylinder structure 66 is secured as at 69 to the cable plow share 61, this being supported by a pin 70 passed through a lower bracket portion 71 on the plow share holder 46.
  • the cylinder and piston structure 66 can be omitted and the angular relation of the plow to the plow share holder 46 can be established by passing a pin through a selected one of a series of apertures 72 provided in the plow.
  • the supporting pins 70 in any pair of selected apertures 72, the angular relation of the cable plow with respect to the vertical may be suitably adjusted.
  • a plow comprising:
  • a vertically disposed, transversely extending mounting plate secured directly to the rear end of a tractor type vehicle
  • a vertically disposed, rearwardly extending cylinder support bracket pivotally mounted to said mounting plate about vertical pivot pins extending through said vertically spaced brackets for side-to-side pivotal movement of said cylinder support bracket relative to said mounting plate;
  • first means pivotally mounted to the other end of said arms for supporting a plow share on said arms;
  • hydraulically operated means operatively connected between said mounting plate and said cylinder support bracket, between at least one of said arms and said cylinder support bracket, and between said first means and said plow share for positioning said cylinder support bracket, said arms and said plow share.
  • a plow as in claim 1 wherein the other ends of said arms are pivotally mounted to the top and bottom, respectively, of a frame for vertical pivotal movement relative to said frame, said arms, said cylinder support bracket and said frame comprising a parallelogram linkage.

Abstract

A cable plow is provided which is mounted at the rear of a suitable dirigible vehicle such as a crawler-type tractor. The cable plow is supported on a mounting plate at the rear of the vehicle for movement transversely of the vehicle by means of a vertical pin which is supported immediately adjacent to the mounting plate on the vehicle. By using such a mounting, one secures a reduction in the overall overhang of the plow from the vehicle by as much as 2 or 3 feet.

Description

United States Patent Kant [ 1 Apr. 25, 1972 [54] OFFSETTING CABLE PLOW [72] Inventor: Alvin W. Kant, San Leandro, Calif.
[73] Assignee: American Tractor Equipment Corporation [22] Filed: May 11, 1970 [21] Appl. No.: 36,085
[52] U.S. Cl ..37/193, 172/254, 172/484, 172/667, 172/677, 214/138 [51] lnt.Cl. ..E02f5/18 [58] Field of Search ..172/667, 254, 484, 742, 677; 37/193; 214/138 [56] References Cited UNITED STATES PATENTS 3,515,222 6/1970 Kant ..172/667 X 3,140,745 7/1964 Hinkle et al... 37/193 X 3,571,956 3/1971 Heiberg ..37/193 X 3,417,571 12/1968 Kelley ..37/193 X 3,431,741 3/1969 Kinnan ..37/193 X 3,232,358 2/1966 Heiberg ..172/677 X 3,024,851 3/1962 Harres ..172/677 X 3,389,816 6/1968 Long ..214/138 3,452,882 7/1969 Noller et a]. ..214/138 X Primary ExaminerEdgar S. Burr Assistant Examiner-R. T. Rader AtlorneyEckhoff and Hoppe [57] ABSTRACT A cable plow is provided which is mounted at the rear of a suitable dirigible vehicle such as a crawler-type tractor. The cable plow is supported on a mounting plate at the rear of the vehicle for movement transversely of the vehicle by means of a vertical pin which is supported immediately adjacent to the mounting plate on the vehicle. By using such a mounting, one secures a reduction in the overall overhang of the plow from the vehicle by as much as 2 or 3 feet.
7 Claims, 3 Drawing Figures PAIENIEDAPF: 25 m2 3,657. 831
SHEET 1 UF 3 INVENTOR.
ALVIN W KANT ATTO/ZNEYS OFF SETTING CABLE PLOW BACKGROUND OF THE INVENTION In cable plows heretofore, means for raising and lowering a tool beam had been provided at the rear of the vehicle to support the plow support. The support included a vertical pin on the tool beam to permit the plow to be offset to either side of the vehicle. The result was a structure which extended rearwardly from the vehicle for a substantial distance with a long overhang. As a result, the entire assembly was not compact and the share of the plow was too far in the rear of the vehicle for maximum strength and efficiency. By providing the vertical pivot pin immediately adjacent to the rear of the vehicle, the extent of the overhang is substantially reduced, the plow structure is compact and its strength is necessarily increased.
SUMMARY OF THE INVENTION It is an object of the invention to provide a cable plow structure in which a vertical support permitting lateral movement of the plow with respect to the transporting vehicle is provided immediately adjacent the rear of the vehicle and the overall overhang of the structure supporting the plow is materially shortened.
The invention includes other objects and features of advantage, some of which, together with the foregoing, will appear hereinafter when the preferred embodiment of this invention is disclosed.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of the rear of the vehicle showing the cable plow of this invention in position.
FIG. 2 is a side elevation of the cable plow structure of this invention.
FIG. 3 is a plan view of the cable plow embodying this invention, the solid lines showing the plow structure in actual alignment with the major axis of the vehicle while the view in phantom lines shows the plow offset with respect to such axis.
DESCRIPTION OF THE PREFERRED EMBODIMENT In the drawings, a dirigible vehicle, such as a track-laying type tractor, is generally indicated at 6. At the rear of the tractor, a mounting plate 7 is provided. Upper and lower horizontally extending brackets 8 and 9 are secured to the mounting plate 7. A cylinder support bracket, generally indicated at 11, is supported on the brackets 8 and 9 for transverse movement of the vehicle by upper and lower pairs of spaced ears, numerals 12 and 13 indicating the upper pair of ears and numerals 14 and 16 indicating the lower pair of ears, the pairs of ears being respectively secured to the brackets by pins 17 and 18. The cylinder support bracket 11 is movable transversely of the vehicle 6 by hydraulic cylinder and piston devices 21 and 22 pivoted at 20 on either side of the cylinder support bracket 11. The piston rods from each cylinder and piston structure 21 and 22 are indicated at 23 and 24. These are attached by pins 26 and 27 to the upper brackets 8. A pair of arms 31 are welded into a V-shaped unitary structure. This structure is hinged by pins 33 on the cylinder support bracket 11 while a lower arm 32 is hinged by pin 34 on the cylinder support bracket. The arms extend rearwardly and are secured by pins 36 and 37 to a frame 38. The arms provide a parallelogram structure, the vertical position of which is controlled by a cylinder 41 mounted between opposite sides of the cylinder support bracket 11 by bearings 42. A piston rod 43 extends from the cylinder 41 and is attached as at 44 to arm 32, thus permitting the vertical relation of the parallelogram provided by the arms 31 and 32 with respect to the ground to be altered at will by means of fluid application to the cylinder 41 and its contained piston (not shown).
Extending rearwardly from theframe 38 is a U-shaped plow share holder 46 having opposite ears 47 and 48 extending on either side of the frame 38 and supported thereon by a vertical pin 49. The plow share holder 46 is moved angularly with respect to the frame 38 by a cylinder and piston structure, generally indicated at 51, which is mounted upon bracket 52 on one side of the frame 38. The piston rod 53 from cylinder and piston 51 is attached to the plow share holder 46 by pin 54 being fitted in an car 56 provided on the side of the plow share holder 46.
The cable plow share is generally indicated at 61 and includes a sharp forwardly extending hardened cutting point 62. Hinged on the rear edge of the cable plow share by bracket support 63 is the cable feed tube 64 which is constructed and operates in a well-known manner.
The relation of the plow to the supporting structure in the device shown is controlled by the cylinder piston structure, generally indicated at 66, the cylinder being mounted in opposite brackets 67 provided upon the top of the plow share holder 46. The piston rod 68 which extends from the piston cylinder structure 66 is secured as at 69 to the cable plow share 61, this being supported by a pin 70 passed through a lower bracket portion 71 on the plow share holder 46.
If desired, the cylinder and piston structure 66 can be omitted and the angular relation of the plow to the plow share holder 46 can be established by passing a pin through a selected one of a series of apertures 72 provided in the plow. Thus, by placing the supporting pins 70 in any pair of selected apertures 72, the angular relation of the cable plow with respect to the vertical may be suitably adjusted.
From the foregoing, it will be apparent that I have provided an improved cable laying plow structure in which the overall length of the structure and its supporting elements is materially foreshortened with the result that a simple compact structure is provided. In addition the plow is subject to precise control by means of the four different sets of cylinder and piston structures which are provided, namely, those indicated at 22, 41, 51 and 66.
I claim:
1. A plow comprising:
a. a vertically disposed, transversely extending mounting plate secured directly to the rear end of a tractor type vehicle;
b. a pair of vertically spaced, horizontally extending brackets on said mounting plate;
c. a vertically disposed, rearwardly extending cylinder support bracket pivotally mounted to said mounting plate about vertical pivot pins extending through said vertically spaced brackets for side-to-side pivotal movement of said cylinder support bracket relative to said mounting plate;
d. a pair of vertically spaced arms pivotally mounted at one end to said cylinder support bracket for vertical pivotal movement with respect thereto;
e. first means pivotally mounted to the other end of said arms for supporting a plow share on said arms;
f. a plow share supported on said first means; and
g. hydraulically operated means operatively connected between said mounting plate and said cylinder support bracket, between at least one of said arms and said cylinder support bracket, and between said first means and said plow share for positioning said cylinder support bracket, said arms and said plow share.
2. A plow as in claim 1, wherein the other ends of said arms are pivotally mounted to the top and bottom, respectively, of a frame for vertical pivotal movement relative to said frame, said arms, said cylinder support bracket and said frame comprising a parallelogram linkage.
3. A plow as in claim 2, wherein a generally U-shaped plow share holder is pivotally mounted to the frame about a vertical pivot means for side-to-side pivotal movement of said plow share holder relative to said frame, said plow share being supported on said plow share holder.
4. A plow as in claim 3, wherein a piston and cylinder assembly is connected between said mounting plate and each side of said cylinder support bracket for effecting side-to-side pivotal movement of said cylinder support bracket relative to said mounting plate.
ment of said plow share holder relative to said frame.
7. A plow as in claim 6, wherein a piston and cylinder assembly is connected between said plow share holder and said plow share to effect pivotal movement of said plow share relative to said plow share holder.

Claims (7)

1. A plow comprising: a. a vertically disposed, transversely extending mounting plate secured directly to the rear end of a tractor type vehicle; b. a pair of vertically spaced, horizontally extending brackets on said mounting plate; c. a vertically disposed, rearwardly extending cylinder support bracket pivotally mounted to said mounting plate about vertical pivot pins extending through said vertically spaced brackets for side-to-side pivotal movement of said cylinder support bracket relative to said mounting plate; d. a pair of vertically spaced arms pivotally mounted at one end to said cylinder support bracket for vertical pivotal movement with respect thereto; e. first means pivotally mounted to the other end of said arms for supporting a plow share on said arms; f. a plow share supported on said first means; and g. hydraulically operated means operatively connected between said mounting plate and said cylinder support bracket, between at least one of said arms aNd said cylinder support bracket, and between said first means and said plow share for positioning said cylinder support bracket, said arms and said plow share.
2. A plow as in claim 1, wherein the other ends of said arms are pivotally mounted to the top and bottom, respectively, of a frame for vertical pivotal movement relative to said frame, said arms, said cylinder support bracket and said frame comprising a parallelogram linkage.
3. A plow as in claim 2, wherein a generally U-shaped plow share holder is pivotally mounted to the frame about a vertical pivot means for side-to-side pivotal movement of said plow share holder relative to said frame, said plow share being supported on said plow share holder.
4. A plow as in claim 3, wherein a piston and cylinder assembly is connected between said mounting plate and each side of said cylinder support bracket for effecting side-to-side pivotal movement of said cylinder support bracket relative to said mounting plate.
5. A plow as in claim 4, wherein a piston and cylinder assembly is connected between said cylinder support bracket and the lower arm of said pair of arms for effecting vertical pivotal movement of said arms.
6. A plow as in claim 5, wherein a piston and cylinder assembly is connected to one side of said frame and to said U-shaped plow share holder to effect side-to-side pivotal movement of said plow share holder relative to said frame.
7. A plow as in claim 6, wherein a piston and cylinder assembly is connected between said plow share holder and said plow share to effect pivotal movement of said plow share relative to said plow share holder.
US36085A 1970-05-11 1970-05-11 Offsetting cable plow Expired - Lifetime US3657831A (en)

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BR (1) BR7101069D0 (en)
CA (1) CA931365A (en)
DE (1) DE2120740A1 (en)
FR (1) FR2088470B1 (en)
GB (1) GB1273941A (en)
ZA (1) ZA71831B (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3746100A (en) * 1971-11-12 1973-07-17 Charles Machine Works Mounting for vibrating tool having damping means for isolating vibrations
US3752239A (en) * 1971-06-01 1973-08-14 L Kelley Variable ripper plow shank assembly
US3777500A (en) * 1971-10-12 1973-12-11 L Kelley Plow having a reciprocating blade attachment
US3887015A (en) * 1973-04-30 1975-06-03 Leon O Kelley Convertible ripper and gouger and toe trimmer
US4038828A (en) * 1976-01-12 1977-08-02 J. I. Case Company Vertical lift and control for plows
US4102403A (en) * 1976-10-15 1978-07-25 Vibra-King, Inc. Apparatus for making a slit trench
US4142817A (en) * 1978-01-19 1979-03-06 Germain Lazure Plow for use in laying drain-tile
US4817731A (en) * 1987-07-01 1989-04-04 Komatsu Dresser Company Ripper mechanism
US5087168A (en) * 1990-09-06 1992-02-11 Versa-Hoe Sales & Leasing Inc. Tilting device for backhoe
US6431288B1 (en) * 2000-11-21 2002-08-13 Ronald J. Hoffart Front three-point hitch system
FR2845561A1 (en) * 2002-10-09 2004-04-16 Gregoire & Cie Besson Mechanism for controlling forces on thrust bar in three-point linkage for semi-mounted plow comprises hydraulic cylinder mounted between front of plow and cardan connector which connects it to linkage

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU541657B2 (en) * 1979-02-14 1985-01-17 Springer, H-W. Subsoil plough
US4325039A (en) * 1979-10-31 1982-04-13 Bicc Limited Leaky coaxial cable wherein aperture spacings decrease along the length of the cable
DE3071076D1 (en) * 1979-11-29 1985-10-17 Ici Plc Agronomic process and implement for use therein
DE3123479C2 (en) * 1981-06-13 1984-07-26 Klaus Hermann 2740 Bremervörde Ehlen Cable brackets for electrical cables
DE3506414A1 (en) * 1985-02-23 1986-09-04 Maschinenfabrik Scharf Gmbh, 4700 Hamm Cable traction system
FR2616617B1 (en) * 1987-06-18 1991-04-12 Bugnot Ets EFFORTS COMPENSATION DEVICE FOR HITCHING AGRICULTURAL MACHINES

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3024851A (en) * 1960-01-28 1962-03-13 Harres Alfred Earth working tool and carriage of an underground cable laying machine
US3140745A (en) * 1958-07-25 1964-07-14 Altorfer Machinery Company Means for steering a tractor by varying the point of load application to a transverse tow bar supported by the tractor
US3232358A (en) * 1963-03-21 1966-02-01 Sam Abrams Cable plow
US3389816A (en) * 1966-10-28 1968-06-25 Case Co J I Overcenter backhoe
US3417571A (en) * 1967-06-05 1968-12-24 Leon O. Kelley Dual tractor mounted, articulated cable laying device
US3431741A (en) * 1966-09-26 1969-03-11 Henkels & Mccoy Inc Articulated vehicle
US3452882A (en) * 1968-03-18 1969-07-01 Massey Ferguson Inc Swing mechanism for backhoes
US3515222A (en) * 1968-06-19 1970-06-02 American Tractor Equip Corp Cable plow mounting
US3571956A (en) * 1968-04-16 1971-03-23 Robert C Heiberg Cable plow draft linkage

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3175368A (en) * 1960-09-26 1965-03-30 Jr Peter Duane Tibbits Cable laying device
US3403521A (en) * 1966-09-14 1968-10-01 American Tractor Equip Corp Cable plow

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3140745A (en) * 1958-07-25 1964-07-14 Altorfer Machinery Company Means for steering a tractor by varying the point of load application to a transverse tow bar supported by the tractor
US3024851A (en) * 1960-01-28 1962-03-13 Harres Alfred Earth working tool and carriage of an underground cable laying machine
US3232358A (en) * 1963-03-21 1966-02-01 Sam Abrams Cable plow
US3431741A (en) * 1966-09-26 1969-03-11 Henkels & Mccoy Inc Articulated vehicle
US3389816A (en) * 1966-10-28 1968-06-25 Case Co J I Overcenter backhoe
US3417571A (en) * 1967-06-05 1968-12-24 Leon O. Kelley Dual tractor mounted, articulated cable laying device
US3452882A (en) * 1968-03-18 1969-07-01 Massey Ferguson Inc Swing mechanism for backhoes
US3571956A (en) * 1968-04-16 1971-03-23 Robert C Heiberg Cable plow draft linkage
US3515222A (en) * 1968-06-19 1970-06-02 American Tractor Equip Corp Cable plow mounting

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3752239A (en) * 1971-06-01 1973-08-14 L Kelley Variable ripper plow shank assembly
US3777500A (en) * 1971-10-12 1973-12-11 L Kelley Plow having a reciprocating blade attachment
US3746100A (en) * 1971-11-12 1973-07-17 Charles Machine Works Mounting for vibrating tool having damping means for isolating vibrations
US3887015A (en) * 1973-04-30 1975-06-03 Leon O Kelley Convertible ripper and gouger and toe trimmer
US4038828A (en) * 1976-01-12 1977-08-02 J. I. Case Company Vertical lift and control for plows
US4102403A (en) * 1976-10-15 1978-07-25 Vibra-King, Inc. Apparatus for making a slit trench
US4142817A (en) * 1978-01-19 1979-03-06 Germain Lazure Plow for use in laying drain-tile
US4817731A (en) * 1987-07-01 1989-04-04 Komatsu Dresser Company Ripper mechanism
US5087168A (en) * 1990-09-06 1992-02-11 Versa-Hoe Sales & Leasing Inc. Tilting device for backhoe
US6431288B1 (en) * 2000-11-21 2002-08-13 Ronald J. Hoffart Front three-point hitch system
FR2845561A1 (en) * 2002-10-09 2004-04-16 Gregoire & Cie Besson Mechanism for controlling forces on thrust bar in three-point linkage for semi-mounted plow comprises hydraulic cylinder mounted between front of plow and cardan connector which connects it to linkage
WO2004032601A1 (en) 2002-10-09 2004-04-22 Etablissements Gregoire Besson Et Cie Control device for semi-mounted machine and semi-mounted machine, such as plough equipped with same

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BR7101069D0 (en) 1973-05-15
FR2088470B1 (en) 1975-07-04
GB1273941A (en) 1972-05-10
AT309570B (en) 1973-08-27
DE2120740A1 (en) 1971-12-09
FR2088470A1 (en) 1972-01-07
ZA71831B (en) 1971-10-27
CA931365A (en) 1973-08-07

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