GB1257449A - - Google Patents

Info

Publication number
GB1257449A
GB1257449A GB1257449DA GB1257449A GB 1257449 A GB1257449 A GB 1257449A GB 1257449D A GB1257449D A GB 1257449DA GB 1257449 A GB1257449 A GB 1257449A
Authority
GB
United Kingdom
Prior art keywords
implement
valve spool
fluid
power lift
tilts
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
Other languages
English (en)
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
Priority claimed from DE19681632769 external-priority patent/DE1632769B1/de
Application filed filed Critical
Publication of GB1257449A publication Critical patent/GB1257449A/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)
  • Lifting Devices For Agricultural Implements (AREA)
  • Vehicle Body Suspensions (AREA)
GB1257449D 1968-01-09 1969-01-09 Expired GB1257449A (en, 2012)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681632769 DE1632769B1 (de) 1968-01-09 1968-01-09 Regeleinrichtung für den hydraulischen Kraftheber eines Ackerschleppers

Publications (1)

Publication Number Publication Date
GB1257449A true GB1257449A (en, 2012) 1971-12-15

Family

ID=5683517

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1257449D Expired GB1257449A (en, 2012) 1968-01-09 1969-01-09
GB129969A Expired GB1253411A (en) 1968-01-09 1969-01-09 Regulating devices for hydraulic power lifts of tractors

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB129969A Expired GB1253411A (en) 1968-01-09 1969-01-09 Regulating devices for hydraulic power lifts of tractors

Country Status (3)

Country Link
BE (1) BE726667A (en, 2012)
FR (1) FR1596331A (en, 2012)
GB (2) GB1257449A (en, 2012)

Also Published As

Publication number Publication date
FR1596331A (en, 2012) 1970-06-15
GB1253411A (en) 1971-11-10
BE726667A (en, 2012) 1969-06-16

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee