GB822604A - Improvements in or relating to agricultural mowing machines - Google Patents

Improvements in or relating to agricultural mowing machines

Info

Publication number
GB822604A
GB822604A GB21944/55A GB2194455A GB822604A GB 822604 A GB822604 A GB 822604A GB 21944/55 A GB21944/55 A GB 21944/55A GB 2194455 A GB2194455 A GB 2194455A GB 822604 A GB822604 A GB 822604A
Authority
GB
United Kingdom
Prior art keywords
plate
cutter
frame
bar
mower
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
GB21944/55A
Inventor
Frederick Williams
Harold Glenn Bowditch
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.)
DAVID BROWN TRACTORS (ENGINEERING) Ltd
David Brown Tractors Engineering Ltd
Original Assignee
DAVID BROWN TRACTORS (ENGINEERING) Ltd
David Brown Tractors Engineering 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 DAVID BROWN TRACTORS (ENGINEERING) Ltd, David Brown Tractors Engineering Ltd filed Critical DAVID BROWN TRACTORS (ENGINEERING) Ltd
Priority to GB21944/55A priority Critical patent/GB822604A/en
Publication of GB822604A publication Critical patent/GB822604A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/02—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having reciprocating cutters
    • A01D34/03—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having reciprocating cutters mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D75/00—Accessories for harvesters or mowers
    • A01D75/18—Safety devices for parts of the machines
    • A01D75/185—Avoiding collisions with obstacles

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Zoology (AREA)
  • Harvester Elements (AREA)

Abstract

822,604. Mowing machines. BROWN TRACTORS (ENGINEERING) Ltd., D. July 30, 1956 [July 29, 1955], No. 21944/55. Class 6(3). To permit break-back of the cutter-bar f when it strikes an obstacle, a mower hitched to a tractor by three links and connected to the lower links c by hitch pins e, is connected to the pin on the cutter-bar side through a plate n pivoted below the mower frame a on a vertical pin s attached to the frame so that the frame can pivot about the other hitch pin to the position shown in ghost lines when a stop w on the frame contacts a plate member v. To prevent break-back until an obstacle is struck, a ball or roller m mounted on the plate n is held in a depression to hold the plate n in the position shown. The depression is formed in the edge of a cam p on a plate q, pivoted at r on the mower frame a beneath the plate n and loaded adjustably by a compression spring t to detain the roller m until the cutter-bar f strikes an obstacle. Reversal of the tractor causes the roller m to run along the cam p and re-engage the depression. By varying the length of the upper link of the hitch, the pitch of the cutter-bar f is varied. A tie-link y between the lower links c may be lengthened or shortened by screw means to vary the angular position of the mower with respect to the tractor and thus adjust the lead of the cutter-bar. The Provisional Specification describes also a ball or roller held normally by two detents, each in a cam surface on one or the other of two plates pivoted on the mower frame.
GB21944/55A 1955-07-29 1955-07-29 Improvements in or relating to agricultural mowing machines Expired GB822604A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB21944/55A GB822604A (en) 1955-07-29 1955-07-29 Improvements in or relating to agricultural mowing machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB21944/55A GB822604A (en) 1955-07-29 1955-07-29 Improvements in or relating to agricultural mowing machines

Publications (1)

Publication Number Publication Date
GB822604A true GB822604A (en) 1959-10-28

Family

ID=10171406

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21944/55A Expired GB822604A (en) 1955-07-29 1955-07-29 Improvements in or relating to agricultural mowing machines

Country Status (1)

Country Link
GB (1) GB822604A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0679327A1 (en) * 1994-04-29 1995-11-02 Kuhn S.A. Mower with a safety device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0679327A1 (en) * 1994-04-29 1995-11-02 Kuhn S.A. Mower with a safety device
FR2719189A1 (en) * 1994-04-29 1995-11-03 Kuhn Sa Mower with safety device.
US5566537A (en) * 1994-04-29 1996-10-22 Kuhn S.A. Mower with a safety device

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