US2520117A - Trash clearing device for harrow teeth and the like - Google Patents

Description

Aug'. 29, 1950 L. clEsLAK TRASH CLEARING DEVICE FOR HARROW TEETH AND THE LIKE Filed Nov. 12, 1946 2 Sheets-Sheet'l INVEN TOR LEO CIESLAK ATTORNEY Aug. 29, 1950 l.. clEsL-.AK 2,520,117 TRASH CLEARING DEVICE FOR RARRow TEETR AND TRE LIKE Filed Nw. 12, 194e 2 Sheets-Sheet 2 El Z5 INVEN'TOR I EO CIESLAK Patented Aug. 29, 1950 UNITED STATES PATENT @HASH CLEARIN G DEVEGE FR HARROW TEETH AND THE LIKE Le@ 'Giesialc Salem-f. Greg;-

Application November 12, l9diygserial No. WSL-23'3- s (Cl. .S7-+5199 `This invention relates to improvements in har.-` rows and cultivators and is particularly adapted torbe used in connection with spring tooth harrows.`

- The primary obj ect .of the invention is to pro-.- vide an attachment for harrows .and cultiva-tors that 'will Aremove grass, weeds and Athe like from theteeth of the harrows without having to stop the harrow in its operation.

A further .object of my invention is to provide a device of this nature that can be readily :attached ordetached from the implement.

'invention consists of providing endless hold down elements ilocated between the :teeth or shoes ofthe. narrows or 4cultivators for holding the vegetation against the ground surface, thereby removing the same from the teeth of said implement. This hold down element .consists of an endless chain, which will be more ffully. described and disclosed in the drawings and specificati-on.' kThese and other 'incidental objects will be apparent in the drawings, specification and claims.

'Referring to the drawings:

Figure 1 is a plan View of a single section of a conventional spring tooth narrow, having my new and improved tooth -or shoe clearing elements mounted thereon.

Figure 2 is a side sectional view taken on line 22 foi? Figure 1j Figure 3 is a fragmentary enlarged detail view f1.1

illustrating a preferred method of mounting my new and improved tooth or shoe clearing device to a conventional spring tooth narrow.

Figure iY is ,an zenlarged fragmentary sectional side elevation illustrating the principle of opera- .e

tion of my new and improved tooth or shoe clearin'gdevice. Y

Figure 5 is a perspective View of the frame assembly.

In the drawings:

I have illustrated one section of a spring tooth harrow, which consists of the frame I, having the cross frames 2 pivotally mounted therein at 3. The usual spring teeth 4 are secured to the cross frames 2. The position of these teeth and frames are controlled by the lever mechanism 5, including its control bars B and l, said bars 1 being xedly mounted to the cross frames 2 at 8. The above elements make up the usual spring tooth harrow assembly.

My invention consists in mounting endless chains 9, which I will term as hold down elements for holding down the vegetation being gathered by the teeth of the harrow against the ground surface, pulling the same away from these teeth lowing manner.

during the forward movement of `the narrow, which will be more fully described in .detailr 'later My new and improved tooth or :shoe clearing device consists o-f trames lIB preferablya bar4 running longitudinal of the 'har-row. assembly when mounted. Fixedly secured to one end of this bar is a forked bearing support :l1 towwhich is journalled the vsprocket l2. Formed on the opposite end of the bar .IB is a fork i3 which is adjuster-bly mounted within the -`base Ul forming part of the bar IU.

el. suitable adjusting screw 'l5 adjusts the posi: tion of the -fork after which it is locked Ain this position by the `clamp bolts it. rlhis provides fora'n adjustment of the chain 9, which mustbe maintained in a taut condition. This .chain 'is trained about the sprocket i2 and :the sprocket il. Lugs i3 are provided on the chain for-- enf.

'i gagingthe ground surface and holding the .chain stationary relative to the ground kduring the for-fV ward movement of the implement.

The entire assemblyy of the frame ill, sprockets and chain, is mounted to the harrowin the -fol.. Clamps i9 are secured to the cross frames 2 by the bolts 20. Forming part of the clamps IS are brackets 2|. Links 22 are pivotally mounted on `their one end to the stub shafts 223 form-ing p a-r-t of the forks =l -I and Il3 and are pivota-ily lmounted to the brackets 2i Aalt 2-4 at their opposite-end. The clamps i9, brackets 2li and the links 22 securely mounts the hold -down assembly to the implement. I have provided a resilient means for holding the hold `down assembly down against the ground surface relative to the implement and this consists of pivotally mounting a rod 25 to the links 22 at 25 and slid.- ably mounting its opposite end through the upturned portion 21 of the brackets I9.

A spring 29 is anchored to the rod 25 at 30 and bears against the upturned portion 21 of the bracket I9. This provides a downward force on the links 22 relative to the cross frames 2 of the implement regardless of the position given to the te-eth l by the adjustment of the lever 5. An idler sprocket 3l' is mounted midway the length of the frame l ll at 32 and bears down against the chain 6 adjacent the intermediate teeth 4 of the implement.

I will now describe the operation of my new and improved tooth or shoe clearing device. As the implement frame l and its associated teeth li are pulled over the ground surface the chain 6 of my clearing device contacts the ground surface, best illustrated in Figures 2 and 4. The

teeth |'8 preventing the lower run of the chain from moving relative to the ground surface. This then holds down on the vegetation indicated at 33 which is being fouled around the tooth or shoe 4 at 34. The chain holds said vegetation down while the tooth moves forward relative to the ground surface and the chain. This is the primary object of my invention, the pulling of this vegetation away from the tooth or shoe as it tends to collect thereon.

I do not wish to be limited to the particular mechanical structure as shown and described as other mechanical equivalents may be substituted still coming within the scope of my claims.

I claim:

l. In a harrow including a tooth mounted on a frame, the combination with the improvements comprising a pair of idler wheels mounted on parallel axes in spaced relation transversely of said frame respe'tiveiy in iront of and behind said tooth, said Wheels being in a plane laterally adjacent said tooth, and an endless member extending around said wheels for engagement by the bottom run thereof with the ground beside said tooth to hold down vegetable matter adjacent the path of said tooth as the harrow is moved over the ground.

2. In a harroW including a frame, a plurality of cross-bars in said frame and a plurality of spaced teeth mounted on each bar, the combination of the improvements comprising a plurality of pairs of idler wheels respectively mounted in the front and rear of said frame on parallel axes, each pair of Wheels lying in a plane laterally adjacent one of said teeth on each of said crossbars, and an endless member extending around each pair of wheels for engagement by the bottom run thereof with the ground beside the respective teeth to hold down vegetation adjacent the path of said teeth as the harrow is moved over the ground.

3. In a harrow having a plurality of teeth carried on a frame, a, plurality of endless members mounted on the frame to extend in the direction of movement of the harrow with the bottom runs in Contact with the ground in close proximity to the barrow teeth to hold down vegetation in the path of the teeth, pairs of rotatably mounted wheels respectively supporting said endless members and being longitudinally spaced by rigid members, and links pivotally connecting the mountings of said wheels with the frame to effect vertical movement of said Wheels and endless members relative to said frame.

4. In a harrow having a plurality of teeth carried on a frame, a plurality of endless members mounted on the frame to extend in the direction of movement of the harrow with the bottom runs in contact with the ground in close proximity to the harrow teeth to hold down vegetation in the path of the teeth, pairs of rotatably mounted wheels respectively supporting said endless members and being longitudinally spaced by rigid members, links pivotally connecting the mountings of said Wheels with the frame to effect vertical movement of said wheels and endless members relative to said frame, and means resiliently biasing the wheels and endless members downwardly relative to said frame.

5. In a harrow having a plurality of teeth carried on a frame, a plurality of endless members mounted on the frame to extend in the direction of movement of the harrow with the bottom runs in contact with the ground in close proximity to the harrow teeth to hold down vegetation in the path of the teeth, pair of rotatably mounted Wheels respectively supporting said endless members and being longitudinally spaced by rigid members. links pivotally connecting the mountings of said wheels with the frame to effect vertical movement of said wheels and endless members relative to said frame, a rod pivotally connected to each of said links and slidably supported by said frame, and a compression spring coiled about each of said rods between the link and frame to resiliently bias the wheels and endless members downwardly relative to said frame.

6. In a harrow having a plurality of teeth carried on a frame, a plurality of endless members mounted on the frame to extend in the direction of movement of the harrow with the bottom runs in Contact with the ground in close proximity to the barrow teeth to hold down vegetation in the path of the teeth, pairs of wheels respectively supporting said endless members, shafts rotatable supporting said wheels, pairs of means supporting the shafts of said pairs of Wheels and supported at the opposite ends of a rigid bar to space the Wheels of each pair. one of said means of each pair being adjustable longitudinally of said bar, and 4links pivotally connecting said shafts with said frame to eiect vertical movement of said Wheels and endless members relative to said frame.

LEO CIESLAK.

REFERENCES CITED UNITED STATES PATENTS Name Date Glasier Feb. 12, 1935 Number

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