FR2270380B3 - - Google Patents

Info

Publication number
FR2270380B3
FR2270380B3 FR7416076A FR7416076A FR2270380B3 FR 2270380 B3 FR2270380 B3 FR 2270380B3 FR 7416076 A FR7416076 A FR 7416076A FR 7416076 A FR7416076 A FR 7416076A FR 2270380 B3 FR2270380 B3 FR 2270380B3
Authority
FR
France
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
FR7416076A
Other languages
French (fr)
Other versions
FR2270380A1 (en
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.)
STIME
Original Assignee
STIME
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 STIME filed Critical STIME
Priority to FR7416076A priority Critical patent/FR2270380A1/fr
Publication of FR2270380A1 publication Critical patent/FR2270380A1/fr
Application granted granted Critical
Publication of FR2270380B3 publication Critical patent/FR2270380B3/fr
Granted legal-status Critical Current

Links

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
    • E01C19/006—Devices for guiding or controlling the machines along a predetermined path by laser or ultrasound
    • 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
    • E02F3/847—Drives or control devices therefor, e.g. hydraulic drive systems for positioning the blade, e.g. hydraulically using electromagnetic, optical or acoustic beams to determine the blade position, e.g. laser beams

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Operation Control Of Excavators (AREA)
FR7416076A 1974-05-09 1974-05-09 Self-levelling levelling machine - has rotating laser beam sweeping to detectors controlling blade levelling jacks Granted FR2270380A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7416076A FR2270380A1 (en) 1974-05-09 1974-05-09 Self-levelling levelling machine - has rotating laser beam sweeping to detectors controlling blade levelling jacks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7416076A FR2270380A1 (en) 1974-05-09 1974-05-09 Self-levelling levelling machine - has rotating laser beam sweeping to detectors controlling blade levelling jacks

Publications (2)

Publication Number Publication Date
FR2270380A1 FR2270380A1 (en) 1975-12-05
FR2270380B3 true FR2270380B3 (ref) 1977-03-11

Family

ID=9138635

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7416076A Granted FR2270380A1 (en) 1974-05-09 1974-05-09 Self-levelling levelling machine - has rotating laser beam sweeping to detectors controlling blade levelling jacks

Country Status (1)

Country Link
FR (1) FR2270380A1 (ref)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2488098A1 (fr) * 1980-08-06 1982-02-12 Grp Champenois Expl Vitic Dispositif d'alignement pour materiel agricole
FR2635544B1 (fr) * 1988-08-18 1992-04-24 Chaize Alain Procedes et engin pour ouvrer une surface de sol, notamment pour revetir une chaussee
FR2635543B1 (fr) * 1988-08-18 1991-10-18 Chaize Alain Procede et engins pour ouvrer une surface de sol, notamment pour revetir une chaussee
US5643047A (en) * 1990-08-01 1997-07-01 Concrete Grinding Ltd. Mobile floor grinding vehicle
GB9016897D0 (en) * 1990-08-01 1990-09-12 Beckett James L A mobile floor grinding machine
JP2505210Y2 (ja) * 1993-04-09 1996-07-24 建設省東北地方建設局長 舗装作業車の自動操向装置

Also Published As

Publication number Publication date
FR2270380A1 (en) 1975-12-05

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Legal Events

Date Code Title Description
ST Notification of lapse