GB769911A - Improvements in or relating to agricultural implements - Google Patents

Improvements in or relating to agricultural implements

Info

Publication number
GB769911A
GB769911A GB1163751A GB1163751A GB769911A GB 769911 A GB769911 A GB 769911A GB 1163751 A GB1163751 A GB 1163751A GB 1163751 A GB1163751 A GB 1163751A GB 769911 A GB769911 A GB 769911A
Authority
GB
United Kingdom
Prior art keywords
arm
marker
implement
latch
sleeve
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
GB1163751A
Inventor
Walter Stanley Hockey
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 HARRIS FERGUSON Ltd
Original Assignee
MASSEY HARRIS FERGUSON Ltd
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 HARRIS FERGUSON Ltd filed Critical MASSEY HARRIS FERGUSON Ltd
Priority to GB1163751A priority Critical patent/GB769911A/en
Publication of GB769911A publication Critical patent/GB769911A/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
    • A01B69/00—Steering of agricultural machines or implements; Guiding agricultural machines or implements on a desired track
    • A01B69/02—Ridge-marking or like devices; Checkrow wires; Accessories therefor
    • A01B69/024—Ridge-marking or like devices; Checkrow wires; Accessories therefor adapted to cut and form a ridge or forrow in the soil surface, e.g. with a disc

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Guiding Agricultural Machines (AREA)
  • Agricultural Machines (AREA)

Abstract

769,911. Agricultural implements. MASSEYHARRIS-PERGUSON (SALES), Ltd. Nov. 23, 1953 [May 18, 1951], No. 11637/51. Class 6(1). A tractor-mounted implement, of the type provided with marker arms 6 interconnected by a flexible cable 33 so that each arm is raised when the other is lowered, is characterized in the provision of a latch 28 to hold each arm raised and a pair of interconnected latch-disabling devices which operate so that the raising of one arm to the latched, position automatically disables the other latch to allow the other marker arm to fall when the implement is again lowered. The marker arms are attached to an implement which is mounted upon poweroperated draught-links, the movement of which, in raising the implement, causes the cable 33 to tauten and raise the lowered arm 6 to a vertical position. Each arm is rotatably mounted on a pin 4 carried by a bracket 1 which has an extension 11 mounting a fixed boss 13. A sleeve 14 and cap 18 are rotatably mounted on the boss 1.3 and a central spindle 20 is rotatable relative to both the boss and the sleeve. A torsion spring 15 interconnects the boss 13 and cap 18, and pins on the spindle and cap respectively can inter-engage during the motion of the sleeve to rotate the spnidle also. An arm 19 on the sleeve 14 projects across the line of motion of the arm 6. The spindle is integral with an arm 23 connected by a link 25 to the corresponding mechanism adjacent to the other marker arm, the arm 23 being formed with a cam 26 which can push a spring-loaded pivoted latch 28 into the path of the raised marker arm. Raising of the implement, by the power-lift, raises the marker-arm 6 which encounters the arm 19 in rising and thereby rotates the sleeve 14 and the spindle 20. As the latter rotates, the cam 26 pushes the latch 28 behind the raised marker-arm 6 and the link 25 causes the mechanism on the opposite side to be unlocked. On lowering the implement the opposite marker-arm is therefore lowered, the cam 26 having passed over-centre to lock the first arm in its raised position by means of the latch 28. Reference has been directed by the Comptroller to Specifications 544,041 and 624,707.
GB1163751A 1951-05-18 1951-05-18 Improvements in or relating to agricultural implements Expired GB769911A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1163751A GB769911A (en) 1951-05-18 1951-05-18 Improvements in or relating to agricultural implements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1163751A GB769911A (en) 1951-05-18 1951-05-18 Improvements in or relating to agricultural implements

Publications (1)

Publication Number Publication Date
GB769911A true GB769911A (en) 1957-03-13

Family

ID=9989939

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1163751A Expired GB769911A (en) 1951-05-18 1951-05-18 Improvements in or relating to agricultural implements

Country Status (1)

Country Link
GB (1) GB769911A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3250333A (en) * 1964-04-13 1966-05-10 Edward H Bogard Jr Row marker
DE1457664B1 (en) * 1964-11-12 1970-02-19 Amazonen Werke Dreyer H Switching device for engaging and disengaging the work tools on agricultural machines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3250333A (en) * 1964-04-13 1966-05-10 Edward H Bogard Jr Row marker
DE1457664B1 (en) * 1964-11-12 1970-02-19 Amazonen Werke Dreyer H Switching device for engaging and disengaging the work tools on agricultural machines

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