GB1488202A - Earthworking apparatus - Google Patents

Earthworking apparatus

Info

Publication number
GB1488202A
GB1488202A GB2627/75A GB262775A GB1488202A GB 1488202 A GB1488202 A GB 1488202A GB 2627/75 A GB2627/75 A GB 2627/75A GB 262775 A GB262775 A GB 262775A GB 1488202 A GB1488202 A GB 1488202A
Authority
GB
United Kingdom
Prior art keywords
mass
accelerometer
jan
operates
signal
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
GB2627/75A
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.)
Caterpillar Inc
Original Assignee
Caterpillar Tractor Co
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 Caterpillar Tractor Co filed Critical Caterpillar Tractor Co
Publication of GB1488202A publication Critical patent/GB1488202A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Operation Control Of Excavators (AREA)

Abstract

1488202 Accelerometer CATERPILLAR TRACTOR CO 21 Jan 1975 [21 Jan 1974] 2627/75 Heading G1N [Also in Divisions El and G3] An accelerometer for use in the control system for the blade of an earthworking machine (see Division G3) includes a mass M supported on rotatable shaft SH together with a coil structure C which co-operates with a permanent magnet yoke U. A position detector PD co-operates with mass M to produce a signal which is amplified at A and energizes coil C to keep the mass in the position shown. The output signal Eo is developed across resistor R.
GB2627/75A 1974-01-21 1975-01-21 Earthworking apparatus Expired GB1488202A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US434982A US3896899A (en) 1974-01-21 1974-01-21 Blade stabilizer for earth working apparatus

Publications (1)

Publication Number Publication Date
GB1488202A true GB1488202A (en) 1977-10-12

Family

ID=23726506

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2627/75A Expired GB1488202A (en) 1974-01-21 1975-01-21 Earthworking apparatus

Country Status (7)

Country Link
US (1) US3896899A (en)
JP (1) JPS5724448B2 (en)
AR (1) AR207132A1 (en)
BR (1) BR7500384A (en)
CA (1) CA1028027A (en)
GB (1) GB1488202A (en)
ZA (1) ZA747136B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2129034A (en) * 1982-10-29 1984-05-10 Kubota Ltd Tractor with a scraper
DE10000771A1 (en) * 2000-01-11 2001-07-26 Brueninghaus Hydromatik Gmbh Device and method for position control for work equipment of mobile work machines

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4064945A (en) * 1975-03-10 1977-12-27 J. I. Case Company Electronic depth control system
US4085805A (en) * 1976-01-26 1978-04-25 Honeywell Inc. Earth working machine with elevation control for tool thereof
US4431060A (en) * 1981-04-15 1984-02-14 Caterpillar Tractor Co. Earth working machine and blade condition control system therefor
JPS6280103U (en) * 1985-11-11 1987-05-22
US5584346A (en) * 1992-07-27 1996-12-17 Komatsu Est Corp. Control system for a motor grader
US5551518A (en) * 1994-09-28 1996-09-03 Caterpillar Inc. Tilt rate compensation implement system and method
US5653155A (en) * 1996-01-29 1997-08-05 Caterpillar Inc. Method and apparatus for single lever control of multiple actuators
CA2257049A1 (en) * 1997-12-31 1999-06-30 Richard Gramm Combine header height control
US6883299B1 (en) 2003-08-05 2005-04-26 Richard Gramm Height sensor arrangement for agricultural applications
US8406963B2 (en) * 2009-08-18 2013-03-26 Caterpillar Inc. Implement control system for a machine
US8869910B2 (en) 2010-04-07 2014-10-28 Caterpillar Inc. DCM circle shoe having angled wear insert
CN102505718B (en) * 2011-11-22 2014-10-01 潍柴动力股份有限公司 Bulldozer and torque smooth control system thereof
US20130158818A1 (en) * 2011-12-20 2013-06-20 Caterpillar Inc. Implement control system for a machine
US8600621B2 (en) 2011-12-20 2013-12-03 Caterpillar Inc. System and method for controlling slip
US9458599B2 (en) * 2014-04-17 2016-10-04 Gregory P. Costello Method and apparatus for earth moving and surface grading
US9194101B2 (en) * 2014-04-17 2015-11-24 Gregory P. Costello Method and apparatus for earth moving and surface grading
US11598068B2 (en) * 2020-05-28 2023-03-07 Caterpillar Inc. Drawbar assembly for a motor grader

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3026638A (en) * 1960-01-28 1962-03-27 Sanders Associates Inc Automatic blade slope control system
US3497014A (en) * 1967-05-01 1970-02-24 United Aircraft Corp Automatic blade bite control
US3495663A (en) * 1968-06-26 1970-02-17 Caterpillar Tractor Co Integrated automatic slope-grade control system for motor graders
US3486564A (en) * 1969-02-24 1969-12-30 Caterpillar Tractor Co Vertical reference system
US3604512A (en) * 1969-09-16 1971-09-14 Caterpillar Tractor Co Electrooptical control system for vehicles
US3637026A (en) * 1969-10-06 1972-01-25 Cmi Corp Cross slope control of mobile machinery

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2129034A (en) * 1982-10-29 1984-05-10 Kubota Ltd Tractor with a scraper
DE10000771A1 (en) * 2000-01-11 2001-07-26 Brueninghaus Hydromatik Gmbh Device and method for position control for work equipment of mobile work machines
DE10000771C2 (en) * 2000-01-11 2003-06-12 Brueninghaus Hydromatik Gmbh Device and method for position control for work equipment of mobile work machines
US6968241B2 (en) 2000-01-11 2005-11-22 Brueninghaus Hydromatik Gmbh Device and method for controlling the position for working devices of mobile machines

Also Published As

Publication number Publication date
BR7500384A (en) 1975-11-04
ZA747136B (en) 1975-11-26
US3896899A (en) 1975-07-29
JPS5724448B2 (en) 1982-05-24
JPS50103101A (en) 1975-08-14
AR207132A1 (en) 1976-09-15
CA1028027A (en) 1978-03-14

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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