GB1338981A – Plough colter construction
– Google Patents
GB1338981A – Plough colter construction
– Google Patents
Plough colter construction
Info
Publication number
GB1338981A
GB1338981A
GB344272A
GB344272A
GB1338981A
GB 1338981 A
GB1338981 A
GB 1338981A
GB 344272 A
GB344272 A
GB 344272A
GB 344272 A
GB344272 A
GB 344272A
GB 1338981 A
GB1338981 A
GB 1338981A
Authority
GB
United Kingdom
Prior art keywords
colter
arm
lever arm
spring
shaft
Prior art date
1971-01-25
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
GB344272A
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.)
Deere and Co
Original Assignee
Deere and Co
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.)
1971-01-25
Filing date
1972-01-25
Publication date
1973-11-28
1972-01-25
Application filed by Deere and Co
filed
Critical
Deere and Co
1973-11-28
Publication of GB1338981A
publication
Critical
patent/GB1338981A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
A01B61/00—Devices for, or parts of, agricultural machines or implements for preventing overstrain
A01B61/04—Devices for, or parts of, agricultural machines or implements for preventing overstrain of the connection between tools and carrier beam or frame
A01B61/044—Devices for, or parts of, agricultural machines or implements for preventing overstrain of the connection between tools and carrier beam or frame the connection enabling a yielding pivoting movement around a substantially horizontal and transverse axis
A01B61/046—Devices for, or parts of, agricultural machines or implements for preventing overstrain of the connection between tools and carrier beam or frame the connection enabling a yielding pivoting movement around a substantially horizontal and transverse axis the device including an energy accumulator for restoring the tool to its working position
Abstract
1338981 Agricultural implement DEERE & CO 12 Jan 1972 [25 Jan 1971] 3442/72 Heading A1B The front end of a colter arm 12, having a plough colter 10 at its rear end, is connected to a shaft 26 journalled in a mounting bracket 14 and is biased to a working position by either a tension spring 46 (Figs. 1, 2) or a hydraulic device (Fig. 3, not shown) acting between the mounting bracket 14 and a lever arm 38 on the shaft 26 so that if the colter 10 meets an obstruction the biasing means yields to permit the colter to surmount the obstruction. The corresponding faces 32, 30 of the colter arm and shaft are serrated and clamped in a fixed relative position by a bolt 34 which, when loosened, allows the working depth of the colter to be adjusted and which acts as a clutch which may yield to allow slip between the faces 32, 30 if the colter arm suffers a large deflection, so preventing damage to the colter itself. Constructional Details-Spring Biasing Device. The colter arm 12 is pivotally connected by shaft 26 to the mounting bracket 14 which includes a pair of vertical bearing blocks 16 rotatably mounted on the lower end of shank 18, the upper end of which is clamped to the frame of the plough. A lug 24 on the clamp 20 limits the rotational movement of the bracket 14 un the shank 18. The shaft 26 has an enlarged end 28 with a serrated face 30 and carries a lever arm 38 which is forked to receive a pin 42 and the eye of the tension link 46. A laterally projecting spring abutment piece 48 on the bracket 14 extends to the rear of the lever arm 38 and is provided with an aperture 50 through which the tension link 46 extends. A spring retainer 56 bears against the rear end of the spring 54 and is retained on the tension link 46 by nuts 58. When the colter arm is deflected upwards, the spring 54 is compressed until the deflecting force diminishes, at which time the arm 12 is returned to the working position by way of lever 38 and the expansion of the spring. Hydraulic Biasing Device (Fig. 3, not shown). In this case the forked lever arm receives a roller instead of the tension link. A cylinder is mounted on the mounting bracket in front of the lever arm and is connected to a source of fluid pressure, e.g. an accumulator, with its position engaging the roller on the lever arm. When the colter arm is deflected upwards, the roller on the lever arm forces the piston back into the cylinder, the fluid pressure returning the piston and hence the colter arm to its normal working position when the deflecting force diminishes. The rearward movement of the lever arm is limited by the engagement of two lugs on the enlarged head of the shaft and the mounting bracket respectively.
GB344272A
1971-01-25
1972-01-25
Plough colter construction
Expired
GB1338981A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US10930471A
1971-01-25
1971-01-25
Publications (1)
Publication Number
Publication Date
GB1338981A
true
GB1338981A
(en)
1973-11-28
Family
ID=22326956
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB344272A
Expired
GB1338981A
(en)
1971-01-25
1972-01-25
Plough colter construction
Country Status (6)
Country
Link
US
(1)
US3700037A
(en)
AU
(1)
AU445607B2
(en)
CA
(1)
CA948917A
(en)
GB
(1)
GB1338981A
(en)
SE
(1)
SE377518B
(en)
ZA
(1)
ZA718041B
(en)
Cited By (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2146881A
(en)
*
1983-09-22
1985-05-01
Dowdeswell C V R
Yieldable mounting of plough members
GB2160160A
(en)
*
1984-06-12
1985-12-18
Ivan Murray Miller
Improvements in and relating to wheel mountings and assemblies
CN114258746A
(en)
*
2021-12-22
2022-04-01
王吉权
New agricultural is ploughed integrative machine and is used direction auxiliary structure
Families Citing this family (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4333535A
(en)
*
1980-07-25
1982-06-08
Deere & Company
Disc standard assembly
US4759411A
(en)
*
1986-12-09
1988-07-26
Yetter Manufacturing Company
Selective pivotal mounting arrangement for coulters
US4828042A
(en)
*
1987-03-30
1989-05-09
Unverferth Manufacturing Company, Inc.
Coulter chisel tillage tool
Family Cites Families (11)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US252279A
(en)
*
1882-01-10
Cultivator-toqth
US437651A
(en)
*
1890-09-30
Plant-fender for plows
US175251A
(en)
*
1876-03-28
Improvement in corn-plows
US1260076A
(en)
*
1917-09-27
1918-03-19
Frank Sherwin
Planter attachment.
US1443171A
(en)
*
1921-09-08
1923-01-23
Raymond R Dupler
Cultivator attachment
US3405767A
(en)
*
1965-09-09
1968-10-15
Massey Ferguson Inc
Torsion bar mounting for coulter discs
US3642073A
(en)
*
1965-09-13
1972-02-15
Cletus J Geurts
Semimounted plow and colter
US3451489A
(en)
*
1965-10-21
1969-06-24
Deere & Co
Spring-loaded rolling coulter
US3561541A
(en)
*
1967-09-21
1971-02-09
Roger W Woelfel
Tractor and implement hydraulic control system
US3529676A
(en)
*
1967-10-20
1970-09-22
Allis Chalmers Mfg Co
Spring loaded coulter
US3545550A
(en)
*
1968-05-09
1970-12-08
Case Co J I
Pivotal coulter lock-out assembly
1971
1971-01-25
US
US109304A
patent/US3700037A/en
not_active
Expired – Lifetime
1971-07-22
CA
CA118,888A
patent/CA948917A/en
not_active
Expired
1971-08-13
AU
AU32340/71A
patent/AU445607B2/en
not_active
Expired
1971-11-30
ZA
ZA718041A
patent/ZA718041B/en
unknown
1972
1972-01-24
SE
SE7200775A
patent/SE377518B/xx
unknown
1972-01-25
GB
GB344272A
patent/GB1338981A/en
not_active
Expired
Cited By (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2146881A
(en)
*
1983-09-22
1985-05-01
Dowdeswell C V R
Yieldable mounting of plough members
GB2160160A
(en)
*
1984-06-12
1985-12-18
Ivan Murray Miller
Improvements in and relating to wheel mountings and assemblies
CN114258746A
(en)
*
2021-12-22
2022-04-01
王吉权
New agricultural is ploughed integrative machine and is used direction auxiliary structure
Also Published As
Publication number
Publication date
US3700037A
(en)
1972-10-24
CA948917A
(en)
1974-06-11
ZA718041B
(en)
1972-08-30
AU3234071A
(en)
1973-02-15
AU445607B2
(en)
1974-02-28
SE377518B
(en)
1975-07-14
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Legal Events
Date
Code
Title
Description
1974-04-10
PS
Patent sealed [section 19, patents act 1949]
1987-09-16
PCNP
Patent ceased through non-payment of renewal fee
