GB1426357A - Hydraulic self-levelling device for a boom-mounted bucket - Google Patents

Hydraulic self-levelling device for a boom-mounted bucket

Info

Publication number
GB1426357A
GB1426357A GB1963473A GB1963473A GB1426357A GB 1426357 A GB1426357 A GB 1426357A GB 1963473 A GB1963473 A GB 1963473A GB 1963473 A GB1963473 A GB 1963473A GB 1426357 A GB1426357 A GB 1426357A
Authority
GB
United Kingdom
Prior art keywords
spool
bucket
ram
fluid
boom
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
GB1963473A
Other languages
English (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.)
Navistar Inc
Original Assignee
International Harverster 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 International Harverster Corp filed Critical International Harverster Corp
Publication of GB1426357A publication Critical patent/GB1426357A/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
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
    • E02F3/431—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like
    • E02F3/432—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like for keeping the bucket in a predetermined position or attitude
    • E02F3/433—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like for keeping the bucket in a predetermined position or attitude horizontal, e.g. self-levelling

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)
  • Fluid-Pressure Circuits (AREA)
GB1963473A 1972-05-02 1973-04-25 Hydraulic self-levelling device for a boom-mounted bucket Expired GB1426357A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US24960472A 1972-05-02 1972-05-02

Publications (1)

Publication Number Publication Date
GB1426357A true GB1426357A (en) 1976-02-25

Family

ID=22944210

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1963473A Expired GB1426357A (en) 1972-05-02 1973-04-25 Hydraulic self-levelling device for a boom-mounted bucket

Country Status (5)

Country Link
US (1) US3792792A (enrdf_load_stackoverflow)
JP (1) JPS5749689B2 (enrdf_load_stackoverflow)
CA (1) CA968254A (enrdf_load_stackoverflow)
FR (1) FR2183004B1 (enrdf_load_stackoverflow)
GB (1) GB1426357A (enrdf_load_stackoverflow)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4372729A (en) * 1980-07-21 1983-02-08 Veda, Inc. Tilt control
US4452559A (en) * 1982-09-03 1984-06-05 J.I. Case Company Attachment assembly for bellcrank arm
GB8510145D0 (en) * 1985-04-20 1985-05-30 Kombilift Ltd Load lifting apparatus
JPH04127091U (ja) * 1991-05-10 1992-11-19 三菱重工業株式会社 船内溶接部検査装置
US10047502B2 (en) * 2015-12-10 2018-08-14 Caterpillar Inc. System and method for controlling a work implement of a machine
WO2020172679A1 (en) 2019-02-22 2020-08-27 Clark Equipment Company Hydraulic leveling circuit for power machines
CN112482462B (zh) * 2020-11-16 2022-05-27 广西柳工机械股份有限公司 装载机铲装准备控制方法和系统

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2731162A (en) * 1953-11-19 1956-01-17 Superior Separator Company Loader with self-leveling carrier
US2883077A (en) * 1956-02-23 1959-04-21 John S Pilch Bucket control for loader or the like
GB783846A (en) * 1956-05-22 1957-10-02 Max Knobel Improved bucket scoop loader
US3009590A (en) * 1957-05-29 1961-11-21 Hough Co Frank Tractor loader
US2914202A (en) * 1957-09-16 1959-11-24 Mixermobile Manufacturers Inc Loader vehicle
US3032215A (en) * 1958-08-29 1962-05-01 Deere & Co Loader bucket leveling control
DE1100555B (de) * 1958-10-16 1961-02-23 Meiller Fahrzeuge Hydraulische Steuervorrichtung zum Parallelhalten der Ladeschaufel von UEberkopfladern
US3120314A (en) * 1960-10-11 1964-02-04 Massey Ferguson Inc Self-leveling valve attachment for loaders
US3179120A (en) * 1963-05-24 1965-04-20 Koehring Co Proportional flow divider
SE322469B (enrdf_load_stackoverflow) * 1968-06-06 1970-04-06 Ilsbo Ind Ab
US3521781A (en) * 1968-09-26 1970-07-28 Case Co J I Anti-rollback mechanism
US3568869A (en) * 1969-01-09 1971-03-09 Case Co J I Antirollback mechanism
US3695474A (en) * 1970-08-05 1972-10-03 Case Co J I Hydraulic control linkage for implement

Also Published As

Publication number Publication date
JPS4921902A (enrdf_load_stackoverflow) 1974-02-26
US3792792A (en) 1974-02-19
JPS5749689B2 (enrdf_load_stackoverflow) 1982-10-23
FR2183004A1 (enrdf_load_stackoverflow) 1973-12-14
FR2183004B1 (enrdf_load_stackoverflow) 1978-06-23
CA968254A (en) 1975-05-27

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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