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Publication numberUS1545895 A
Publication typeGrant
Publication dateJul 14, 1925
Filing dateMay 17, 1923
Priority dateMay 17, 1923
Publication numberUS 1545895 A, US 1545895A, US-A-1545895, US1545895 A, US1545895A
InventorsHamilton Thomas A
Original AssigneeHamilton Thomas A
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Colter cleaner
US 1545895 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

July 14, 1925. 1,545,895

T. A. HAMILTON COLTER CLEANER Filed May 17. 1923 wmwl'mm nu um Snow :foz,

Patented July 14, 1925.



Application filed 'May 17, 1923. Serial No. 339,616.

won, a citizen of the United States, residing at Emmetsburg, inthe county of Palo Alto.

and State of Iowa, have invented certain new and useful Improvements in Colter Cleaners, of which the followingis a speci' fication.

This invention relatesgto colter cleaners, and more particularly to a scraper for removing dirt and the like from a colter wheel. I

An object of the invention is to provide means for removing dirt from colter wheels to prevent a wheel from clogging and to enable the user to obtain a clean out.

By removing the dirt from the wheel, it is prevented from falling on the axle, thus preventing unnecessary wear on the bearings and prolonging the life of such parts.

A further object of the invention is the provision of a scraper that may be readily moved to an inoperative position.

In the accompanying drawings, I have shown one embodiment of the invention. In this showing:

Figure 1 is a side elevation of a colter wheel showing the invention applied,

Figure 2 is a plan view,

Figure 3 is a detail sectional view on line 3-3 of Figure 1,

Figure 4 is a detail view of the scraper blade, and,

Figure 5 is a detail view of a supporting bracket. 1

Referring to the drawings, the reference numeral 1 designates the forked ends of a colter arm adapted to carry a colter wheel. The wheel comprises a disk 2 having a hub 3. This hub is provided with a central opening for the reception of an axle carried by the colter arms.

As shown in Figure 2 of the drawings, a scraper blade is arranged on each side of the wheel. As the construction of each of these devices is the same, a detail description of one will suffice. A bracket 4 is mounted on each end of the axle and extends upwardly. This bracket is provided with a suitable opening for the reception of a rod 5. A sleeve 6 surrounds this rod and is rotatable thereon. The rotation of the sleeve is lim ited by a set screw 7 mounted in the rod and received in a slot 8, in the sleeve. The sleeve is provided with an extension 9 hav ing an opening 10. A scraper blade 11 is connected tothis sleeve. As shown, the up per edge of the blade is provided with a flange 12 having an opening 13. The blade is connected to the sleeve by means of afbolt passing through the openings 10 and 13. A pair of cotter pins 14 are arranged in openings in the rod 5 adjacenteach end of the, scraper blade. These'pins pass through'the loops 15 formed on the ends of coil springs 16, the springs being arranged around the rod. As shown, the springs are provided with U-shaped .ofiset central portions 17, adapted to bear against the scraper blade and force it: toward the colter wheel. The inner end of the rod 5 is supported in a bracket 18. As shown, this bracket is provided with base 19, having openings 20 for the reception of the ends" of a U-shaped bolt 21. The bolt 21 surroundsthe colter arm, as shown in Figure 3 of the drawings, and nuts 22 are arranged on the ends of the bolt. The bracket is secured to the base by means of a pin 23 (see Figure 3) which per; mits the bracket to rotate about said pin as an axis- The bracket is provided with a pair of parallel arms 24, having openings 25. A sleeve 26 is .pivotally mounted in these openings by means of pins 27, and the sleeve is adapted to revolve about these pins as an axis. The rod 5 passes through the sleeve 26 and is thus connected to the colter arm by the universal joint. The inner end of the sleeve is provided with grooves 28 adapted to receive a pin 29 carried by the rod 5 to retain the rod in an adjusted position when the pin is in-the grooves. The pin isretained in the grooves by means of a spring 30 surrounding the rod '5 and arranged between the sleeve 26 and a washer 31. A cotter pin 32 passes through an opening in the rod 5 to retain the washer 31 in position.

In operation, the portion 17 of the spring 1.6 forces the scraper blade 11 toward the colter wheel 2 to remove any dirt or other foreign matter from the surface of the wheel. The rod 5 is held in an adjusted position by means of the pin 29 received in the grooves 28. Any irregularities in the co-lter wheel due to wear are compensated for by the swivel mounting of the inner end of the rod 5. When the device is to be placed in an inoperative position, the rod 5 is forced inwardly against the tension of spring 30 to remove the pin 29 from the groove 28 and the rodis then revolved in the bracket 4 and sleeve 26 through a. half revolution. The

pin 29 again enters the grooves 28 to retain the parts in inoperative position. While the offset portion of spring 16 tends to force the colter blade to revolve toward the wheel, the movement of the coulter blade is, limited by the engagement of the setlscrew 7 with the end of the slot 8 and the blade is retained spaced from the wheel.

It is to be understood that the form of my invention herewith shown and described is to be taken as a preferred example of the same'and that various changes in the shape, size, and arrangement of parts may be resorted to without departing fromthe spirit of the invention or the scope of the sub. joined claims.

Having thus described my invention,- I claim: V v.

1. In a wheeled colter, a supporting brack et having an opening, a rod extending through said opening, a swivel {joint mount ed on the colter frame, a sleeve arranged in said joint, the inner end of said rod being rotatably mounted in .said sleeve, said sleeve being provided with a groove in one end, a blade arranged on the outer end of said rod,

' a spring engaging said rod andsaid blade to normally retain said blade in engagement with the side of the colter wheel, and a pin arrangedadjacent the inner end of said rod and received in said groove, whereby said blade may be moved to an inoperative position. 7 r

2. An attachment for wheeled colters comprising a rod arranged adjacent the colter wheel and bent in a substantially horizonta l plane whereby its outer end inclines inwardly toward the colter'wheel, means for rotatablysupporting the inner end of said rod, a blade mounted on the outer end of said rod and adaptedto turn independently and coaxially thereof, a spring engaging said blade to normally maintain it in'engagement with the colter wheel, means for limiting the movement of said blade toward the colter wheel, and means for holding said rod against rotation.

3. An attachment for wheeled colters comprising a rod arranged adjacent the colter wheel and bent substantiallycentrally in a horizontal plane whereby its outer end in-' clines, inwardly toward the colter wheel, a

supporting bracket having an opening surrounding said rod adjacent the bend therein, a blade mounted 'on the outer end of said rod'and adapted to turn independently. thereof, a spring engaging said blade to maintain it in engagement with the 'colter wheel,


Witnesses: V

' W. H. MOR ING,


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2760323 *Jan 25, 1951Aug 28, 1956Cooper Hugh EDisk harrow
US2989129 *Nov 10, 1958Jun 20, 1961Ralph SiskSpring pressed colter shoe
US4489787 *Nov 15, 1982Dec 25, 1984William A. RussAngled rolling knives and method of weeding
US6024179 *Feb 27, 1998Feb 15, 2000Bourgault Industries Ltd.Coulter with an inside floating scraper and an outside spring closer tine
US6260632Mar 15, 1999Jul 17, 2001Bourgault Industries Ltd.Coulter assembly with an inside floating scraper assembly
US6644223 *Mar 18, 2002Nov 11, 2003Case, LlcDisc opener assembly for a seed planter
US7481279Apr 1, 2005Jan 27, 2009Cnh America, LlcDisc blade scraper system
US7721815 *Apr 30, 2007May 25, 2010Cnh America LlcCushion standard shield system
US7753134Jul 31, 2009Jul 13, 2010Cnh America LlcCoulter assembly
US7984768 *Nov 10, 2009Jul 26, 2011Cnh Canada, Ltd.Spring tensioned scraper for disc opener
US8783375 *Aug 5, 2011Jul 22, 2014Cnh Industrial Canada, Ltd.Scraper for a coulter assembly
US20060225901 *Apr 1, 2005Oct 12, 2006Blunier Melvin LDisc blade scraper system
US20130032366 *Feb 7, 2013Cnh Canada, Ltd.Scraper for a coulter assembly
U.S. Classification172/561, 172/566
International ClassificationA01B15/00, A01B15/18
Cooperative ClassificationA01B15/18
European ClassificationA01B15/18