GB1062443A - Improvements relating to implement height-control mechanisms for farming tractors - Google Patents

Improvements relating to implement height-control mechanisms for farming tractors

Info

Publication number
GB1062443A
GB1062443A GB8978/64A GB897864A GB1062443A GB 1062443 A GB1062443 A GB 1062443A GB 8978/64 A GB8978/64 A GB 8978/64A GB 897864 A GB897864 A GB 897864A GB 1062443 A GB1062443 A GB 1062443A
Authority
GB
United Kingdom
Prior art keywords
valve
lever
slide valve
spring
handlever
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
GB8978/64A
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.)
Regie Nationale des Usines Renault
Original Assignee
Regie Nationale des Usines Renault
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 Regie Nationale des Usines Renault filed Critical Regie Nationale des Usines Renault
Publication of GB1062443A publication Critical patent/GB1062443A/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
    • A01B63/112—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 to control draught load, i.e. tractive force

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Lifting Devices For Agricultural Implements (AREA)
GB8978/64A 1963-03-04 1964-03-03 Improvements relating to implement height-control mechanisms for farming tractors Expired GB1062443A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR926788A FR1363918A (fr) 1963-03-04 1963-03-04 Dispositif hydraulique de relevage d'outil et de contrôle d'effort pour tracteurs agricoles
FR947625A FR1376690A (fr) 1963-03-04 1963-09-16 Dispositif hydraulique de relevage d'outil et de contrôle d'effort de traction pourtracteur agricole

Publications (1)

Publication Number Publication Date
GB1062443A true GB1062443A (en) 1967-03-22

Family

ID=26200083

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8978/64A Expired GB1062443A (en) 1963-03-04 1964-03-03 Improvements relating to implement height-control mechanisms for farming tractors

Country Status (4)

Country Link
US (1) US3307455A (fr)
FR (2) FR1363918A (fr)
GB (1) GB1062443A (fr)
OA (1) OA03396A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2353216A1 (fr) * 1976-06-03 1977-12-30 Case Co J I Distributeur de commande pour circuit hydraulique tracteur-instrument

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1273248B (de) * 1964-12-09 1968-07-18 Int Harvester Co Steuereinrichtung zum Heben und Senken von an mit Zugkraft- und Lagesteuerung versehenen Schleppern angeschlossenen landwirtschaftlichen Geraeten
US3450007A (en) * 1967-02-06 1969-06-17 Morris D Robinson Combination valve mechanism for hydraulic power systems
FR1552254A (fr) * 1967-11-24 1969-01-03
CA964163A (en) * 1972-03-08 1975-03-11 Ford Motor Company Of Canada Tractor hydraulic lift control valve
US4341148A (en) * 1980-09-30 1982-07-27 Modular Controls Corporation Hydraulic sequencing valve
MX357664B (es) * 2012-10-19 2018-07-18 Hema Enduestri Anonim Sirketi Sistema de prevencion de fuga de aceite a presion a la linea del cilindro en sistemas de valvulas de control con divisor de flujo.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2799251A (en) * 1954-01-18 1957-07-16 Bob G Newgen Tractor hitch control device
US2970653A (en) * 1957-08-06 1961-02-07 Int Harvester Co Hydraulic depth control apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2353216A1 (fr) * 1976-06-03 1977-12-30 Case Co J I Distributeur de commande pour circuit hydraulique tracteur-instrument

Also Published As

Publication number Publication date
FR1376690A (fr) 1964-10-31
FR1363918A (fr) 1964-06-19
US3307455A (en) 1967-03-07
OA03396A (fr) 1970-12-15

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