GB507223A - Improvements in harrows - Google Patents

Improvements in harrows

Info

Publication number
GB507223A
GB507223A GB3435037A GB3435037A GB507223A GB 507223 A GB507223 A GB 507223A GB 3435037 A GB3435037 A GB 3435037A GB 3435037 A GB3435037 A GB 3435037A GB 507223 A GB507223 A GB 507223A
Authority
GB
United Kingdom
Prior art keywords
tines
bars
cams
levers
raised
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
GB3435037A
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.)
JOSEPH CYRIL BAMFORD
Original Assignee
JOSEPH CYRIL BAMFORD
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 JOSEPH CYRIL BAMFORD filed Critical JOSEPH CYRIL BAMFORD
Priority to GB3435037A priority Critical patent/GB507223A/en
Publication of GB507223A publication Critical patent/GB507223A/en
Expired legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01BSOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B45/00Machines for treating meadows or lawns, e.g. for sports grounds

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Soil Working Implements (AREA)

Abstract

507,223. Implements for working land. BAMFORB, C. J., BAMFORD, J. C., and BAMFORD, H. V..Dec. 11, 1937, No. 34350. [Class 6 (i)] A harrow is provided with two or more sets of tines 30 each set comprising a number of tines extending in a row transversely of the machine and being raised and lowered periodically by means of cams 45, 46. The cams actuate levers 38, 39 carrying cross bars 40, 41 from which are suspended chains or other flexible members 42, 43 attached to the tine bars 28, 29. When the levers 38, 39 are raised all the corresponding tine bars and tines are raised together but when the latter have been lowered to engage the ground the flexible members 42, 43 allow the tine bars and tines to move up and down individually. Groups of tines in a set may be coupled together to form a unit. The tine bars are pivoted on an axis 19 and the tines 30 may be adjustable and may carry fixed or adjustable shoes 35 to limit the depth of working. The cams 45, 46 are so shaped that the levers 38, 39 drop freely during the first part of their downward movement and thus shake off soil &c. adhering to the tines. The part 52 of the cams then lowers the bars gradually. The tines on bars 28 are not lifted from the ground till they have reached the point whore the forward set of tines on the bars 29 entered the ground. The front of the machine is provided with an adjustable drawbar 26.
GB3435037A 1937-12-11 1937-12-11 Improvements in harrows Expired GB507223A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3435037A GB507223A (en) 1937-12-11 1937-12-11 Improvements in harrows

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3435037A GB507223A (en) 1937-12-11 1937-12-11 Improvements in harrows

Publications (1)

Publication Number Publication Date
GB507223A true GB507223A (en) 1939-06-12

Family

ID=10364549

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3435037A Expired GB507223A (en) 1937-12-11 1937-12-11 Improvements in harrows

Country Status (1)

Country Link
GB (1) GB507223A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107548588A (en) * 2017-09-26 2018-01-09 甘肃洮河拖拉机制造有限公司 The useless film of shallow loose rake teeth profiling collects machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107548588A (en) * 2017-09-26 2018-01-09 甘肃洮河拖拉机制造有限公司 The useless film of shallow loose rake teeth profiling collects machine

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