US Patent: 5,566X
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Plough, Wholly of Iron
Casting of Iron Ploughs in one Entire Piece
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Patentee:
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| John Boynton (exact or similar names) - South Coventry, Tolland County, CT |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Jul. 10, 1829 |
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Joel Havens
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Description: |
| Most of the patents prior to 1836 were lost in the Dec. 1836 fire. Only about 2,000 of the almost 10,000 documents were recovered. Little is known about this patent. Only the patent drawing is available. This patent is in the database for reference only.
“For Casting of Iron Ploughs in one Entire Piece; John Boynton, South Coventry, July 10.
“This plough differs from all others, in that it consists wholly of iron, and is cast in one entire piece, excepting the share and handles, and these may be cast together with the body of the plough if required; but the handles to be of wood, and the share to be separate, so as to be taken off for sharpening, or altering, is thought best.
6. The beam is cast something wider and thinner than common wooden beams, and to strengthen it, there is at top and bottom, on both sides, a rib, or moulding, and in the centre of the offside, one projecting considerably further than the others. In the end of the beam are three holes, in which to hook the chain, and by shifting from one to another, the plough is regulated to go more or less deep. To support the mould board, is a brace, or bar, uniting at one end with the mould board, and at the other with the near or land side of the plough.
The handles are fastened on by screws and nuts, and are connected together by a brace, or ring, in the usual way.
The shape of the beam; the number of holes in it; the shape of the mould board, and the size of the plough, may be varied if required; the intention of the inventor being principally to secure the right of casting the whole, or body of the plough, in one entire piece.
The foregoing is the whole of the specification; the object of the patentee, therefore, is merely to secure to himself the right to cast the bodies of ploughs in one entire piece. We have taken occasion in several instances to express our doubts of the validity of such a claim, and we are also unable to perceive the utility of the proposed improvement, as we apprehend that the extra difficulty in moulding will be fully equal to the cost of a few short bolts and nuts.”
Journal of the Franklin Institute Vol. 7, Oct. 1829 pg. 255
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