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GB1389085A - Grad-leveller for attachment to a tractor - Google Patents

Grad-leveller for attachment to a tractor

Info

Publication number
GB1389085A
GB1389085A GB3110672A GB3110672A GB1389085A GB 1389085 A GB1389085 A GB 1389085A GB 3110672 A GB3110672 A GB 3110672A GB 3110672 A GB3110672 A GB 3110672A GB 1389085 A GB1389085 A GB 1389085A
Authority
GB
United Kingdom
Prior art keywords
leveller
grad
tractor
attachment
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
Application number
GB3110672A
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.)
Technion Research and Development Foundation Ltd
Original Assignee
Technion Research and Development Foundation Ltd
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 Technion Research and Development Foundation Ltd filed Critical Technion Research and Development Foundation Ltd
Publication of GB1389085A publication Critical patent/GB1389085A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • E02F3/7663—Graders with the scraper blade mounted under a frame supported by wheels, or the like
    • E02F3/7668—Graders with the scraper blade mounted under a frame supported by wheels, or the like with the scraper blade being pivotable about a vertical axis
    • 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
    • E02F3/80—Component parts
    • E02F3/84—Drives or control devices therefor, e.g. hydraulic drive systems
    • E02F3/844—Drives or control devices therefor, e.g. hydraulic drive systems for positioning the blade, e.g. hydraulically
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2203—Arrangements for controlling the attitude of actuators, e.g. speed, floating function

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Soil Working Implements (AREA)
GB3110672A 1971-07-04 1972-07-03 Grad-leveller for attachment to a tractor Expired GB1389085A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IL37217A IL37217A (en) 1971-07-04 1971-07-04 Tractor-mounted grader-leveler

Publications (1)

Publication Number Publication Date
GB1389085A true GB1389085A (en) 1975-04-03

Family

ID=11046014

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3110672A Expired GB1389085A (en) 1971-07-04 1972-07-03 Grad-leveller for attachment to a tractor

Country Status (5)

Country Link
US (1) US3907041A (en)
DE (1) DE2232780A1 (en)
GB (1) GB1389085A (en)
IL (1) IL37217A (en)
IT (1) IT958642B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2327038C (en) * 2000-11-22 2008-04-22 Champion Road Machinery Limited Motor grader vehicle control arrangement
US6904979B1 (en) 2003-09-16 2005-06-14 Sekely Industries, Inc. Towable earth working apparatus having adjustable wheel height
US7581598B2 (en) * 2004-11-29 2009-09-01 Deere & Company Blade motion reduction
US7584812B2 (en) 2004-11-29 2009-09-08 Deere & Company Articulated dozer with suspension and suspension lockout
US7503411B2 (en) * 2004-11-29 2009-03-17 Deere & Company Articulated dozer with frame structure for decreased height variation in the vehicle chassis
US7192034B2 (en) * 2004-11-29 2007-03-20 Deere & Company Load based suspension motion limiting
US7641007B2 (en) * 2004-11-29 2010-01-05 Deere & Company Dynamic blade distance ratio system and method
US7451840B2 (en) * 2004-11-29 2008-11-18 Deere & Company Articulated crawler dozer with direct load path structure
US20080000660A1 (en) * 2006-06-13 2008-01-03 Ralph Palmer Moe Blade assembly, claw assembly, and gradient adjustment system for implements
US11976716B2 (en) * 2019-08-30 2024-05-07 Caterpillar Inc. Seal assembly for a grading machine
CA3107587A1 (en) * 2020-04-06 2021-10-06 Ocfab Ltd. Earth working implement
US12359396B2 (en) 2021-07-16 2025-07-15 Caterpillar Inc. Damage avoidance systems and methods for motor grader scarifiers
US12338603B2 (en) 2021-10-28 2025-06-24 Phiber Manufacturing Inc. Towed earth moving implement with fixed-winged pitch-adjustable blade assembly

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US992117A (en) * 1910-12-01 1911-05-09 Richard Dix Land-leveler.
US1247719A (en) * 1916-03-20 1917-11-27 Samuel L Reese Terracing-machine.
US1363454A (en) * 1919-05-14 1920-12-28 Theodore C Bullock Road-grader
US2089730A (en) * 1935-08-17 1937-08-10 Western Austin Company Road grading machine
US2593880A (en) * 1947-09-10 1952-04-22 Oral R Heavilin Portable earth leveling apparatus
US3043034A (en) * 1961-05-03 1962-07-10 Kober Karl Leveler
US3716105A (en) * 1970-11-23 1973-02-13 Hallam H Grading attachment for a vehicle

Also Published As

Publication number Publication date
IT958642B (en) 1973-10-30
DE2232780A1 (en) 1973-02-01
US3907041A (en) 1975-09-23
IL37217A0 (en) 1971-10-20
IL37217A (en) 1975-04-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee