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GB1205109A - Level and slope control for surfacing machines - Google Patents

Level and slope control for surfacing machines

Info

Publication number
GB1205109A
GB1205109A GB52515/68A GB5251568A GB1205109A GB 1205109 A GB1205109 A GB 1205109A GB 52515/68 A GB52515/68 A GB 52515/68A GB 5251568 A GB5251568 A GB 5251568A GB 1205109 A GB1205109 A GB 1205109A
Authority
GB
United Kingdom
Prior art keywords
blade
detector
vehicle
laser beam
relative
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
GB52515/68A
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.)
Baldwin Lima Hamilton Corp
Original Assignee
Baldwin Lima Hamilton Corp
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 Baldwin Lima Hamilton Corp filed Critical Baldwin Lima Hamilton Corp
Publication of GB1205109A publication Critical patent/GB1205109A/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
    • E02F3/847—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)
  • Mining & Mineral Resources (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Acoustics & Sound (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Soil Working Implements (AREA)
  • Operation Control Of Excavators (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

1,205,109. Graders. BALDWIN-LIMA-HAM ILTON CORP. 6 Nov., 1968 [8 Nov., 1967], No. 52515/68. Heading E1F. [Also in Division G3] A steerable power-driven vehicle supports a ground levelling tool the vertical position of which is automatically adjusted by power means electrically controlled in dependence on the relative vertical position of a horizontal reference band of a detector carried by the tool and a collinated beam of electromagnetic radiation which determines the path of travel of the tool. In Fig. 1, the scraper blade 11 of an earthlevelling vehicle is carried by a ring 21 which is adjustable vertically, or about a fore and aft axis, by control of hydraulic actuators 17, 18. The vertical position of one end of blade 11 relative to a laser beam emitted from a source 30 is determined by a photo-voltaic detector 31 which controls actuator 18 in the appropriate sense to correct vertical deviation of the end of blade 11 from a position in which the laser beam falls on a narrow null zone of detector 31. A pendulum operated potentiometer 41 mounted on the vehicle to determine its transverse inclination is included with a preset potentiometer in a balanced circuit controlling actuator 17 to maintain transverse inclination of the blade at a value determined by the preset potentiometer. Further resistors vary with, and compensate for, changes in attitude of the ring relative to the chassis and the blade relative to the ring. Transverse inclination may alternatively be determined by controlling actuator 17 by a detector 61 responsive to a second laser beam, from a source 60, which need not be parallel to the other laser beam if it is desired that the inclination shall vary as the vehicle travels forward. Simultaneous control of actuators 17, 18 from one detector to determine the height of the blade is also referred to. Detector 31 also responds to the transverse position of the vehicle relative to the laser beam when it is in the null zone of vertical control. Hydraulic steering is then controlled automatically in a progressive manner to maintain the vehicle on a desired course. Further hydraulic actuators may be provided, e.g. to alter the cutting angle of the blade or shift it longitudinally.
GB52515/68A 1967-11-08 1968-11-06 Level and slope control for surfacing machines Expired GB1205109A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US68152267A 1967-11-08 1967-11-08

Publications (1)

Publication Number Publication Date
GB1205109A true GB1205109A (en) 1970-09-16

Family

ID=24735624

Family Applications (1)

Application Number Title Priority Date Filing Date
GB52515/68A Expired GB1205109A (en) 1967-11-08 1968-11-06 Level and slope control for surfacing machines

Country Status (6)

Country Link
US (1) US3554291A (en)
BE (1) BE723359A (en)
DE (2) DE6805888U (en)
FR (1) FR1591333A (en)
GB (1) GB1205109A (en)
NL (1) NL6815775A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2228507A (en) * 1989-02-24 1990-08-29 John Kelly Control apparatus for earthworking machines

Families Citing this family (41)

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US3659949A (en) * 1970-04-20 1972-05-02 Technidyne Inc Laser beam systems and apparatus for detecting and measuring parametric deviations between surfaces and the like
US3708232A (en) * 1970-09-16 1973-01-02 R Walsh Read-out means for locating and positioning objects with respect to a laser beam reference
US3914064A (en) * 1971-03-01 1975-10-21 Raymond A Gurries Mounting arrangement for sidewalk building equipment or the like
US3791452A (en) * 1971-03-17 1974-02-12 Grad Line Control system for road grader
USRE28979E (en) * 1971-03-17 1976-09-28 Grad-Line, Inc. Control system for road grader
GB1390066A (en) * 1971-03-17 1975-04-09 Grad Line Grader control
US3786871A (en) * 1971-07-26 1974-01-22 Grad Line Grader control
US3727332A (en) * 1971-11-22 1973-04-17 W Zimmer Laser guidance system for grade control
JPS5519333B2 (en) * 1971-12-27 1980-05-26
JPS561413B2 (en) * 1972-07-24 1981-01-13
US3873226A (en) * 1973-07-11 1975-03-25 Laserplane Corp Laser beam control system for road paving machines
US3887012A (en) * 1973-12-03 1975-06-03 Caterpillar Tractor Co Automatic levelling system for earth working blades and the like
US4041623A (en) * 1975-09-22 1977-08-16 Miller Formless Co., Inc. Grade cutting machine
US4260281A (en) * 1976-11-08 1981-04-07 Michael P. Breston Method and apparatus for stabilizing a fill slope
JPS5869939A (en) * 1981-10-22 1983-04-26 Komatsu Ltd Controller for blade of construction machine
DE3645039C2 (en) * 1986-03-19 1993-12-16 Heinz Langhorst Tractor-mounted sand levelling machine
US4820041A (en) * 1986-11-12 1989-04-11 Agtek Development Co., Inc. Position sensing system for surveying and grading
US4823366A (en) * 1987-02-17 1989-04-18 White Consolidated Industries, Inc. Material conveying equipment with control for paving materials using ultrasonic waves
US4808026A (en) * 1987-11-27 1989-02-28 Power Curbers, Inc. Construction apparatus with earth trimmer
US5184293A (en) * 1988-06-09 1993-02-02 Spectra Physics Apparatus for automatic depth control for earth moving and grading
US5235511A (en) * 1988-06-09 1993-08-10 Spectra-Physics, Inc. Method for automatic depth control for earth moving and grading
US4924374B1 (en) * 1988-06-09 1995-07-18 Spectra Physics Method for automatic position control of a tool
DE3909583A1 (en) * 1989-03-23 1990-10-18 Abg Werke Gmbh ROAD PAVERS
US5108220A (en) * 1990-07-13 1992-04-28 Allen Engineering Corporation Light weight, fast steering riding trowel
US5327345A (en) * 1991-02-15 1994-07-05 Laser Alignment, Inc. Position control system for a construction implement such as a road grader
US6168348B1 (en) 1998-01-16 2001-01-02 Southern Laser, Inc. Bi-directional surface leveling system
US6227761B1 (en) * 1998-10-27 2001-05-08 Delaware Capital Formation, Inc. Apparatus and method for three-dimensional contouring
US7399139B2 (en) * 1998-10-27 2008-07-15 Somero Enterprises, Inc. Apparatus and method for three-dimensional contouring
US6612774B1 (en) * 1999-05-11 2003-09-02 Rick Dulin Method and apparatus for compacting road shoulders
US6508606B1 (en) * 2000-09-15 2003-01-21 Miller Spreader Company Curb forming apparatus
US8596373B2 (en) * 2006-03-10 2013-12-03 Deere & Company Method and apparatus for retrofitting work vehicle with blade position sensing and control system
US7647983B2 (en) * 2006-03-31 2010-01-19 Caterpillar Inc. Machine with automated linkage positioning system
US7690864B2 (en) * 2007-12-27 2010-04-06 Allen Engineering Corporation Hydraulic riding trowel with automatic load sensing system
US8360680B2 (en) * 2010-03-09 2013-01-29 Allen Engineering Corporation Hydraulic riding trowels with automatic load sensing
US9271883B2 (en) * 2013-03-01 2016-03-01 Lift-U, Division Of Hogan Mfg., Inc. Ramp assembly with tilt sensor
US9290891B1 (en) 2013-11-20 2016-03-22 Buck Wayne Caswell Laser guide apparatus, system and method for asphalt paving equipment
US12024852B2 (en) 2016-04-13 2024-07-02 Abi Attachments, Inc. Work machines including automatic grading features and functions
US10287744B1 (en) 2016-04-13 2019-05-14 Abi Attachments, Inc. Work machines including automatic grading features and functions
US10287745B1 (en) 2016-04-13 2019-05-14 Abi Attachments, Inc. Work machines including automatic grading features and functions
US10100537B1 (en) 2017-06-20 2018-10-16 Allen Engineering Corporation Ventilated high capacity hydraulic riding trowel
US11306447B2 (en) * 2020-03-27 2022-04-19 Caterpillar Paving Products Inc. Methods and systems for determining an angle of attack and a cross slope of a paving machine

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2916836A (en) * 1955-06-24 1959-12-15 Karl J Stewart Photoelectric automatic blade level control
US2864452A (en) * 1956-11-05 1958-12-16 Guntert & Zimmerman Const Div Supporting and level control mechanism for concrete slab laying machines
US3026638A (en) * 1960-01-28 1962-03-27 Sanders Associates Inc Automatic blade slope control system
US3046681A (en) * 1960-05-23 1962-07-31 Honeywell Regulator Co Control apparatus
US3156989A (en) * 1960-11-30 1964-11-17 Duane E Atkinson Blade control system with reactive pickup
US3221425A (en) * 1962-07-31 1965-12-07 Thomas Tom Valve control
US3285148A (en) * 1963-03-01 1966-11-15 Barber Greene Co Grade control system on bituminous pavers
US3229391A (en) * 1964-03-11 1966-01-18 Caterpillar Tractor Co Automatic blade control for a road grader with a blade simulator mounted in a ball and socket connection
US3364356A (en) * 1964-05-01 1968-01-16 R B Pullin & Company Ltd Optical guidance apparatus for guiding a movable object along a straight path
US3346976A (en) * 1964-09-16 1967-10-17 Gurries Mfg Co Level control mechanism for road building machines
US3321248A (en) * 1965-03-09 1967-05-23 Hughes Tool Co Tunneling machine guidance by impingement of laser beam on pair of machine carried targets
US3296722A (en) * 1965-03-29 1967-01-10 Gurries Mfg Co Automatic control system for construction vehicles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2228507A (en) * 1989-02-24 1990-08-29 John Kelly Control apparatus for earthworking machines
GB2228507B (en) * 1989-02-24 1993-03-24 John Kelly A method of producing a desired contouring of a work surface

Also Published As

Publication number Publication date
DE1807653A1 (en) 1969-06-19
DE6805888U (en) 1973-02-15
FR1591333A (en) 1970-04-27
NL6815775A (en) 1969-05-12
US3554291A (en) 1971-01-12
BE723359A (en) 1969-04-16

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees