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GB857474A - Improvements in or relating to methods of and apparatus for laying roads - Google Patents

Improvements in or relating to methods of and apparatus for laying roads

Info

Publication number
GB857474A
GB857474A GB1159858A GB1159858A GB857474A GB 857474 A GB857474 A GB 857474A GB 1159858 A GB1159858 A GB 1159858A GB 1159858 A GB1159858 A GB 1159858A GB 857474 A GB857474 A GB 857474A
Authority
GB
United Kingdom
Prior art keywords
screed
machine
light
cells
oct
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
GB1159858A
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.)
Impresa Pizzarotti & C Srl
Original Assignee
Impresa Pizzarotti & C Srl
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 Impresa Pizzarotti & C Srl filed Critical Impresa Pizzarotti & C Srl
Publication of GB857474A publication Critical patent/GB857474A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
    • G01C15/002—Active optical surveying means
    • 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
    • A01B69/00—Steering of agricultural machines or implements; Guiding agricultural machines or implements on a desired track
    • A01B69/007—Steering or guiding of agricultural vehicles, e.g. steering of the tractor to keep the plough in the furrow
    • A01B69/008—Steering or guiding of agricultural vehicles, e.g. steering of the tractor to keep the plough in the furrow automatic
    • 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
    • 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
    • E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
    • E01C19/4833—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ with tamping or vibrating means for consolidating or finishing, e.g. immersed vibrators, with or without non-vibratory or non-percussive pressing or smoothing means
    • E01C19/4853—Apparatus designed for railless operation, e.g. crawler-mounted, provided with portable trackway arrangements
    • E01C19/486—Apparatus designed for railless operation, e.g. crawler-mounted, provided with portable trackway arrangements with non-vibratory or non-percussive pressing or smoothing means; with supplemental elements penetrating the paving to work the material thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Optics & Photonics (AREA)
  • Environmental Sciences (AREA)
  • Soil Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Road Paving Machines (AREA)

Abstract

857,474. Photo-electric control systems. IMPRESA PIZZAROTTI & C.S.r.l. April 11, 1958 [June 18, 1957; Oct. 5, 1957; Oct. 30, 1957], No. 11598/58. Class 40(3). [Also in Group X] A level road surface is laid by an automatic machine which maintains a screed at a constant height irrespective of any irregularities over which the machine travels by vertical adjustment of the screed to maintain it in the same position relative to a predetermined optical reference line which may take the form of a beam of light projected from a position ahead of the machine. As shown, the screed 4 of the machine VF which controls the thickness of the layer of bituminous material 1 is vertically adjustable by rotation of the screwed shaft 5 either manually or by the servo-motor 13. A rod 7 is fixed to the screed a vertical displacement of which causes a spot of light projected by the instrument 11<SP>1</SP> to depart from the centre position 9<SP>1</SP> of the translucent screen 9 and the spot of light can be returned to its central position by manually rotating the shaft 5 which adjusts the height of the screed. The machine may be operated automatically by impinging a beam of light on the two vertically displaced photo-electric cells 10, 10<SP>1</SP> such that a layer of the desired thickness is laid when the cells are evenly illuminated, any deviation of the screed causing one or other of the cells to receive more light the potential difference so produced being amplified to operate the servomotor 13 and restore the screed to its desired position. In modifications, the screed may be controlled remotely by cable or radio by an operator ahead of the machine who observes a reference mark on the screen 9 in the crosswires of a telescope.
GB1159858A 1957-06-18 1958-04-11 Improvements in or relating to methods of and apparatus for laying roads Expired GB857474A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT909957 1957-06-18
IT555157 1957-10-05
IT604657 1957-10-30

Publications (1)

Publication Number Publication Date
GB857474A true GB857474A (en) 1960-12-29

Family

ID=33101857

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1159858A Expired GB857474A (en) 1957-06-18 1958-04-11 Improvements in or relating to methods of and apparatus for laying roads

Country Status (5)

Country Link
BE (1) BE566761A (en)
CH (1) CH359457A (en)
DE (1) DE1151531B (en)
FR (1) FR1205339A (en)
GB (1) GB857474A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113250447A (en) * 2021-06-01 2021-08-13 云南穿山机甲能源装备科技有限公司 Sliding form construction linear and elevation detection control system and method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1272954B (en) * 1964-03-23 1968-07-18 Leipzig Inst Foerdertech Device for the straight back of conveyor belt lines
DE50008220D1 (en) 2000-01-19 2004-11-18 Joseph Voegele Ag Method for controlling a construction machine or a paver and paver

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1987398A (en) * 1932-01-25 1935-01-08 Jaeger Machine Co Road finishing apparatus
GB753519A (en) * 1952-11-25 1956-07-25 Jacques Drouard Method of and apparatus for raising and levelling railway-tracks
DE1004641B (en) * 1952-11-25 1957-03-21 Jacques Drouard Method and device for lifting and leveling tracks
DE1010980B (en) * 1953-03-14 1957-06-27 Dingler Werke Ag All-terrain road and canal construction machine equipped with wheels or caterpillars

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113250447A (en) * 2021-06-01 2021-08-13 云南穿山机甲能源装备科技有限公司 Sliding form construction linear and elevation detection control system and method
CN113250447B (en) * 2021-06-01 2022-07-26 云南穿山机甲能源装备科技有限公司 Sliding form construction linear and elevation detection control system and method

Also Published As

Publication number Publication date
DE1151531B (en) 1963-07-18
BE566761A (en) 1960-08-12
FR1205339A (en) 1960-02-02
CH359457A (en) 1962-01-15

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