Plow for use in laying drain-tile
First Claim
1. A plow for use in laying a draintile, comprising:
- a narrow plow body including an upright elongated portion having a leading edge, and a triangular portion at the bottom, front end of said upright portion, said triangular portion being fixed relative to and projecting forwardly from said upright portion, and having an angled leading edge thereon that extends forwardly and downwardly from said leading edge of said upright portion, the bases of said upright and triangular portions forming the base edge of the plow;
means within the plow for guiding the drain-tile from an inlet high in the upright portion to an outlet at the bottom, rear of the upright portion;
an elongated plow blade having a generally flat upper surface and having a tip on its front, lower end;
securing means for detachably fixing said plow blade to the angled leading edge of said triangular portion of the plow body, said securing means being constructed and arranged to allow incremental adjustment in the position of the plow blade relative to said leading edge of said triangular portion, to compensate for wear of the tip of said plow blade; and
a linkage for connecting the plow body at two spaced-apart points on its upper portion to a tractor.
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Accused Products
Abstract
An improved plow for use in laying drain-tile. The plow has a narrow body with an elongated upright portion and a triangular portion at the bottom, front end of the upright portion. Means on the body guide a drain-tile from an inlet high in the upright portion to an outlet at the bottom, rear of the upright portion. The plow has a plow blade detachably and adjustably fixed to the leading edge of the triangular portion. A near shoe and a plow knife may also be detachably fixed to the plow. The plow knife includes means for moving earth in a manner that it fills in the drain-tile trench. Linkage means are provided for connecting the plow to a tractor in a manner that it can be easily maneouvered. The linkage means includes an adjustable link that can change the attitude of the plow. The plow may also comprise means for laying a cover strip on top of the drain-tile as it is being laid.
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Citations
23 Claims
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1. A plow for use in laying a draintile, comprising:
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a narrow plow body including an upright elongated portion having a leading edge, and a triangular portion at the bottom, front end of said upright portion, said triangular portion being fixed relative to and projecting forwardly from said upright portion, and having an angled leading edge thereon that extends forwardly and downwardly from said leading edge of said upright portion, the bases of said upright and triangular portions forming the base edge of the plow; means within the plow for guiding the drain-tile from an inlet high in the upright portion to an outlet at the bottom, rear of the upright portion; an elongated plow blade having a generally flat upper surface and having a tip on its front, lower end; securing means for detachably fixing said plow blade to the angled leading edge of said triangular portion of the plow body, said securing means being constructed and arranged to allow incremental adjustment in the position of the plow blade relative to said leading edge of said triangular portion, to compensate for wear of the tip of said plow blade; and a linkage for connecting the plow body at two spaced-apart points on its upper portion to a tractor. - View Dependent Claims (2, 3, 4, 5, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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7. A plow as claimed in claim 7, further including:
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lugs on said leading edge of the upright portion of the plow body, said support bar having slots therethrough for receiving said lugs; and wedge connectors insertable into said lugs, after they are passed through the slots, to wedge said support bar of the knife tightly against the plow body. - View Dependent Claims (6)
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19. A plow for use in laying a drain-tile, comprising:
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a narrow plow body having an upright elongated portion and a triangular portion at the bottom, front end of the upright portion, said triangular portion having an angled leading edge, the bases of said upright and triangular portions forming the base of the plow; means within the plow for guiding the drain-tile from an inlet high in the upright portion to an outlet at the bottom, rear of the upright portion; a plow blade detachably fixed to the angled leading edge of the triangular portion of the plow body; means on the plow body for directing a cover strip onto the tile as it is being laid, said means including; means for mounting a reel of cover strip on the plow body; channel means for guiding the cover strip from the reel to adjacent the drain-tile outlet in the plow body; guide means adjacent the drain-tile outlet for laying the cover strip onto the drain-tile; and means for adjusting the position of the guide means to accommodate drain-tiles of different size; and a linkage for connecting the plow body at two spaced-apart points on its upper portion to a tractor.
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20. A plow as claimed 19, wherein the operating means for the adjusting means are located on the top end of the plow body.
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21. A plow for use in laying a drain-tile, comprising:
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a narrow plow body having an upright elongated portion and a triangular portion at the bottom, front end of the upright portion, said triangular portion having an angled leading edge, the bases of said upright and triangular portions forming the base of the plow; means within the plow for guiding the drain-tile from an inlet high in the upright portion to an outlet at the bottom, rear of the upright portion; a plow blade detachably fixed to the angled leading edge of the triangular portion of the plow body; and a linkage for connecting the plow body at two spaced-apart points on its upper portion to a tractor, said linkage comprising; a first set of links forming a first parallelogram linkage; and a second set of links forming a second parallelogram linkage, and connecting the plow body to said first set of links; said second parallelogram linkage having upper and lower support links, each pivotably connected at one end to the plow body, said upper support link having a first link section with a first connecting plate, a second link section with a pair of spaced-apart, second connecting plates, and means for connecting said first and said second connecting plates together, when interleaved, at selected interleaved positions, whereby the length of said upper support link can be adjusted. - View Dependent Claims (22, 23)
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Specification