GB1220652A - Improvements relating to rotary mowers - Google Patents

Improvements relating to rotary mowers

Info

Publication number
GB1220652A
GB1220652A GB1741269A GB1741269A GB1220652A GB 1220652 A GB1220652 A GB 1220652A GB 1741269 A GB1741269 A GB 1741269A GB 1741269 A GB1741269 A GB 1741269A GB 1220652 A GB1220652 A GB 1220652A
Authority
GB
United Kingdom
Prior art keywords
blade
plate
shaft
underside
curvature
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
GB1741269A
Inventor
Philip George Harris
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.)
Hayters Ltd
Original Assignee
Hayters 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 Hayters Ltd filed Critical Hayters Ltd
Priority to GB1741269A priority Critical patent/GB1220652A/en
Priority to NL7003891A priority patent/NL7003891A/xx
Priority to DE19702014251 priority patent/DE2014251A1/en
Priority to AU13418/70A priority patent/AU1341870A/en
Publication of GB1220652A publication Critical patent/GB1220652A/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
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/73—Cutting apparatus
    • A01D34/733—Cutting-blade mounting means

Landscapes

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

Abstract

1,220,652. Mowing machines. HAYTERS Ltd. 16 March, 1970 [2 April, 1969], No. 17412/69. Heading A1F. A rotary grass-cutting machine has a vertical driving shaft 10 with a threaded bore 15 in its lower end. An apertured plate 13 with a mounted sleeve 12 is drivably secured to this shaft and is dished concavely as viewed from the underside. A double-ended cutter blade 17 is stressed against the underside of the plate using a double-shouldered spacing collar 22, a washer 24, and screw 16 which screws into the shaft. The radius of curvature of the blade is slightly greater than the radius of curvature of the plate resulting in a limited frictional surface contact between the two. If the blade meets an obstruction this friction is broken and the blade does not revolve with the plate, thus reducing serious damage.
GB1741269A 1969-04-02 1969-04-02 Improvements relating to rotary mowers Expired GB1220652A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB1741269A GB1220652A (en) 1969-04-02 1969-04-02 Improvements relating to rotary mowers
NL7003891A NL7003891A (en) 1969-04-02 1970-03-18
DE19702014251 DE2014251A1 (en) 1969-04-02 1970-03-25 mowing machine
AU13418/70A AU1341870A (en) 1969-04-02 1970-04-06 Improvements relating to rotary mowers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1741269A GB1220652A (en) 1969-04-02 1969-04-02 Improvements relating to rotary mowers

Publications (1)

Publication Number Publication Date
GB1220652A true GB1220652A (en) 1971-01-27

Family

ID=10094748

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1741269A Expired GB1220652A (en) 1969-04-02 1969-04-02 Improvements relating to rotary mowers

Country Status (4)

Country Link
AU (1) AU1341870A (en)
DE (1) DE2014251A1 (en)
GB (1) GB1220652A (en)
NL (1) NL7003891A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE31542E (en) * 1976-10-04 1984-03-27 Safety attachment for lawn mowers
GB2157144A (en) * 1984-03-20 1985-10-23 Robert George Doorbar Increasing the safety of rotary lawn mowers
GB2418588A (en) * 2004-09-30 2006-04-05 Electrolux Outdoor Prod Ltd Lawnmower blade
EP2997810A1 (en) * 2014-09-20 2016-03-23 Viking GmbH Work device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE402854B (en) * 1977-01-18 1978-07-24 Lindblad Sture NOISE REDUCING DEVICE FOR ROTARY CUTTING SYSTEM
CN109258088B (en) * 2018-09-30 2021-07-13 孙会宝 Disc type cutting device of forage grass harvesting flatting mill

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE31542E (en) * 1976-10-04 1984-03-27 Safety attachment for lawn mowers
GB2157144A (en) * 1984-03-20 1985-10-23 Robert George Doorbar Increasing the safety of rotary lawn mowers
GB2418588A (en) * 2004-09-30 2006-04-05 Electrolux Outdoor Prod Ltd Lawnmower blade
EP2997810A1 (en) * 2014-09-20 2016-03-23 Viking GmbH Work device
US9936635B2 (en) 2014-09-20 2018-04-10 Viking Gmbh Power tool

Also Published As

Publication number Publication date
AU1341870A (en) 1971-10-07
DE2014251A1 (en) 1970-10-15
NL7003891A (en) 1970-10-06

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