GB1097578A - Improvements in tractor hydraulic control systems - Google Patents

Improvements in tractor hydraulic control systems

Info

Publication number
GB1097578A
GB1097578A GB36450/67A GB3645067A GB1097578A GB 1097578 A GB1097578 A GB 1097578A GB 36450/67 A GB36450/67 A GB 36450/67A GB 3645067 A GB3645067 A GB 3645067A GB 1097578 A GB1097578 A GB 1097578A
Authority
GB
United Kingdom
Prior art keywords
piston
stem
oil
hydraulic control
control systems
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
GB36450/67A
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.)
Massey Ferguson Inc
Original Assignee
Massey Ferguson Inc
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 Massey Ferguson Inc filed Critical Massey Ferguson Inc
Publication of GB1097578A publication Critical patent/GB1097578A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • A01B63/00—Lifting or adjusting devices or arrangements for agricultural machines or implements
    • A01B63/02—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors
    • A01B63/10—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means
    • A01B63/111—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means regulating working depth of implements
    • A01B63/1117—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means regulating working depth of implements using a hitch position sensor

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Lifting Devices For Agricultural Implements (AREA)
  • Mechanical Control Devices (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Servomotors (AREA)
  • Valve Device For Special Equipments (AREA)
  • Fluid-Damping Devices (AREA)
GB36450/67A 1964-04-17 1965-04-20 Improvements in tractor hydraulic control systems Expired GB1097578A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US360663A US3314484A (en) 1964-04-17 1964-04-17 Tractor hydraulic system

Publications (1)

Publication Number Publication Date
GB1097578A true GB1097578A (en) 1968-01-03

Family

ID=23418939

Family Applications (3)

Application Number Title Priority Date Filing Date
GB36450/67A Expired GB1097578A (en) 1964-04-17 1965-04-20 Improvements in tractor hydraulic control systems
GB36449/67A Expired GB1097577A (en) 1964-04-17 1965-04-20 Improvements in tractor hydraulic control systems
GB16467/65A Expired GB1097576A (en) 1964-04-17 1965-04-20 Improvements in tractors

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB36449/67A Expired GB1097577A (en) 1964-04-17 1965-04-20 Improvements in tractor hydraulic control systems
GB16467/65A Expired GB1097576A (en) 1964-04-17 1965-04-20 Improvements in tractors

Country Status (7)

Country Link
US (1) US3314484A (enExample)
BE (1) BE662653A (enExample)
DE (3) DE1557773C3 (enExample)
GB (3) GB1097578A (enExample)
NL (1) NL6504757A (enExample)
SE (2) SE341770B (enExample)
YU (1) YU31440B (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3430984A (en) * 1967-03-30 1969-03-04 Int Harvester Co Weight transfer system
US3589447A (en) * 1968-12-06 1971-06-29 Case Co J I Control system for dozer
US3917002A (en) * 1971-10-15 1975-11-04 Massey Ferguson Inc Draft control linkage for a tractor
JPS5543929Y2 (enExample) * 1977-06-20 1980-10-16
ZA802501B (en) * 1979-05-09 1981-04-29 Massey Ferguson Services Nv Tractor hydraulic control systems
US4425970A (en) 1981-09-21 1984-01-17 Massey-Ferguson Inc. Tractor draft sensing apparatus
IT214748Z2 (it) * 1988-05-05 1990-06-18 Fiatgeotech Gruppo di sollevamento ed abbassamento di un attrezzo collegato ad una macchina agricola
US7798241B2 (en) * 2008-09-19 2010-09-21 Deere & Company Mechanical hitch control unit

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733689A (en) * 1956-02-07 badenoch
US772115A (en) * 1903-11-19 1904-10-11 Hugh Perronet Thompson Adjustable retarding device for reciprocating valves.
US1560439A (en) * 1917-11-01 1925-11-03 John Hays Hammond Jr Retarding device
US2822737A (en) * 1954-06-03 1958-02-11 Massey Harris Ferguson Inc Power operating system for tractor hitch linkage
US2996125A (en) * 1957-05-06 1961-08-15 Massey Ferguson Inc Implement mounting system
US2971585A (en) * 1957-07-29 1961-02-14 United Aircraft Corp Sequencing and pressure peducing valve utilizing v-shaped orifice to effect pressure and gain regulation
FR1238877A (fr) * 1959-07-09 1960-08-19 C C M Cie Continentale De Moto Perfectionnements apportés aux dispositifs d'asservissement hydraulique pour tracteurs
US2994346A (en) * 1959-09-02 1961-08-01 New York Air Brake Co Control valve

Also Published As

Publication number Publication date
SE341770B (enExample) 1972-01-17
GB1097576A (en) 1968-01-03
DE1557773C3 (de) 1974-05-16
GB1097577A (en) 1968-01-03
DE1557772A1 (de) 1970-04-16
SE345951B (enExample) 1972-06-19
NL6504757A (enExample) 1965-10-18
DE1482477A1 (de) 1969-04-03
YU31440B (en) 1973-06-30
BE662653A (enExample)
DE1482477C3 (de) 1974-06-06
DE1482477B2 (de) 1973-10-25
DE1557773A1 (de) 1970-07-02
US3314484A (en) 1967-04-18
DE1557773B2 (de) 1973-10-04

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