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US 3,980,141 AGranted
Moldboard plow
AssigneeStanton Supply Corporation
InventorRobert C. Vest, Jr.
Life of this patent
Estimating the term…
Abstract
A five, six, or seven bottom two-way reversible moldboard plow is made to be attached by a standard three-point hitch on a tractor and lifted by the hitch without the aid of a trailing wheel. This is accomplished by mounting the plow as far forward as possible so the first plow is well forward of the bearing. Also, an improved brace is placed upon the side plates supporting the plow shank.
Claims10
In a two-way reversible plow having
- a. a three point hitch,
- b. said hitch forming means for lifting the plow and for pulling the plow in a direction of draft,
- c. a bearing tube having
- i. a forward end and
- ii. an after end,
- d. said tube attached to said hitch parallel to said direction of draft,
- e. hitch bracing between said hitch and said tube,
- f. a shaft journaled into said tube,
- g. a main plow beam attached to said shaft at an acute angle thereto,
- h. main bracing between said shaft and said main plow beam, and
- j. a hydraulic cylinder extending between said tube and said main bracing,
- k. said hydraulic cylinder forming means for rotating said shaft within said tube whereby the main plow beam is reversed,
- m. THE IMPROVEMENT COMPRISING IN COMBINATION WITH THE ABOVE:
- n. at least ten plow bottoms attached to said plow beam in pairs with one plow of each pair on each side of said beam, so that there are two gangs of plows, each gang having at least five plows,
- o. the first of said pairs forward of the after end of said bearing tube, and
- p. a plane perpendicular to the direction of draft through the after end of said bearing tube passing behing the first of said pairs and intersecting the second of said pairs from front of the gang.
13 more elements
In a two-way reversible gang plow having
- a. a main plow beam,
- b. a first gang of plows with bottoms mounted on one side of the main plow beam,
- c. a second gang of plows with bottoms mounted on the other side of the main plow beam,
- d. said plows attached to the beam in pairs,
- e. means attached to the main plow beam for reversing the main plow beam so that the gangs of plows are reversed,
- f. a beam foot attached to each plow bottom,
- g. two side plates,
- i. one on the land side and
- ii. one on the plow side of each beam foot
- iii. bolted to each beam foot, and
- h. a bar attached to the main plow beam for each bottom,
- j. the side plates attached to the bar;
- k. THE IMPROVED STRUCTURE FOR REINFORCING THE SIDE PLATES AND TO THE MAIN BEAM COMPRISING:
- m. a front reinforcing foot attached from the side plate on the land side of one gang to the side plate on the land side of the other gang at each pair,
- n. the front reinforcing foot located in front of the main plow beam,
- o. a rear reinforcing foot attached from the side plate on the plow side of one gang to the side plate on the plow side of the other gang at each pair,
- p. the rear reinforcing foot located in rear of the main plow beam, and
- q. a beam foot reinforcing bar
- r. bolted at its top to the side plate on the plow side, and
- s. bolted at its bottom through a spacer to the beam foot.
17 more elements
The invention as defined in claim 11 wherein
- hh. the distance parallel to the main plow beam from an element on one plow to the corresponding element on the adjacent plow is called the beam spacing, and
- jj. said bearing tube is longer than the beam spacing.
Dependencies are inferred from the claim text.