CA975453A - Road-maintenance machine with blade - Google Patents

Road-maintenance machine with blade

Info

Publication number
CA975453A
CA975453A CA121,449A CA121449A CA975453A CA 975453 A CA975453 A CA 975453A CA 121449 A CA121449 A CA 121449A CA 975453 A CA975453 A CA 975453A
Authority
CA
Canada
Prior art keywords
road
blade
maintenance machine
maintenance
machine
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
CA121,449A
Other versions
CA121449S (en
Inventor
Nils G. Johansson
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of CA975453A publication Critical patent/CA975453A/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
    • E02F3/80—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
    • E02F3/845—Drives or control devices therefor, e.g. hydraulic drive systems for positioning the blade, e.g. hydraulically using mechanical sensors to determine the blade position, e.g. inclinometers, gyroscopes, pendulums
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00—Control of position or direction
    • G05D3/12—Control of position or direction using feedback
    • G05D3/14—Control of position or direction using feedback using an analogue comparing device
    • G05D3/18—Control of position or direction using feedback using an analogue comparing device delivering a series of pulses

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Milling, Drilling, And Turning Of Wood (AREA)
  • Road Paving Machines (AREA)
  • Operation Control Of Excavators (AREA)
CA121,449A 1970-08-27 1971-08-26 Road-maintenance machine with blade Expired CA975453A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1162070A SE338748B (en) 1970-08-27 1970-08-27

Publications (1)

Publication Number Publication Date
CA975453A true CA975453A (en) 1975-09-30

Family

ID=20294303

Family Applications (1)

Application Number Title Priority Date Filing Date
CA121,449A Expired CA975453A (en) 1970-08-27 1971-08-26 Road-maintenance machine with blade

Country Status (5)

Country Link
CA (1) CA975453A (en)
DE (1) DE2142446A1 (en)
FR (1) FR2103568B3 (en)
GB (1) GB1344672A (en)
SE (1) SE338748B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5980829A (en) * 1982-10-29 1984-05-10 Kubota Ltd Tractor with ground-grading scraper

Also Published As

Publication number Publication date
FR2103568B3 (en) 1973-11-30
DE2142446A1 (en) 1972-03-02
GB1344672A (en) 1974-01-23
FR2103568A3 (en) 1972-04-14
SE338748B (en) 1971-09-13

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