US Patent: 5,461X
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| Cylinder Paper Machine for Paper Making
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Patentee:
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| Isaac Sanderson (exact or similar names) - Milton, Norfolk County, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Apr. 18, 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. There are no patent drawings available. This patent is in the database for reference only.
“A general defect in the paper made upon cylinder machines is, the inequality of its strength when tried lengthwise and across. This is in consequence of a greater number of fibres running in one direction than in the other, and a consequent want of that perfect interlocking which takes place upon mould-made paper. A part of the present machine is intended to remove this defect. For this purpose there is a horizontal whirl wheel, which plays or revolves under the wing cylinder, so called, upon which the paper forms, and by distributing the current and counteracting the continuous motion of the pulp rising upon the cylinder, improves the quality, and increases the strength of the paper, by casting the fibrous parts of the pulp in every direction, and at the same time throwing the knots and motes on the outward surface of the sheet, (instead of depositing in the body of the paper) from which they can easily be removed without injury to the paper.
The other improvement is the sheet forming roller; this roller is used, and put in the place of the upper water pressing roller (so called) of the cylinder paper machines. The sheet is formed on this roller, the circumference of which must be graduated according to the dimensions of the sheet required. The additional kinds of paper that can be made on the cylinder paper machine, by means of the improvement, or invention, of the sheet forming roller, and the counteracting horizontal whirl wheel, are, press paper, bonnet paper, pasteboard, and band-box paper.
There are eight floats on the horizontal whirl wheel, which are placed obliquely, the more perfectly to agitate the water. The whirl wheel and sheet forming roller constitute the claim.”
Journal of the Franklin Institute Vol. 5, Aug. 1829 pg. 113
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