US Patent: 5,481X
|
| Agitator Used in Paper Making
|
|
Patentee:
|
|
| Reuben Fairchild (exact or similar names) - Trumbull, Fairfield County, CT |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Granted: |
May 04, 1829 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Joel Havens
|
|
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.
“This invention is intended to obviate a defect in the paper made upon the cylinder machines, it being very easily torn in one direction, although strong in the other; this results from the fibres of the pulp being mostly arranged longitudinally with the length of the sheet, whilst in the hand-made paper they interlock equally in all directions. The agitator is a semi-cylindrical cradle of metal, which lies under the cylinder in the vat, the bars of metal of which it is formed running in the direction of the circumference of the cylinder, and at a small distance from it. By means of the crank motion, the agitator is made to vibrate in the direction of the length of the cylinder, whilst the latter takes up the pulp; and in this way the fibres are to be made to interlock as effectually as in paper made in a mould. The claim is to the agitator.
A second application for a patent was made whilst the above was pending, by Messrs. Culver and Cole, of Massachusetts; their machinery was identical in principle with that of Mr. Fairchild. An amicable arrangement was effected between the parties, by which a mutual ownership of the right was established, without the vexation, loss, and delay, consequent upon a suit at law.
A patent was granted to Isaac Saunderson, of Massachusetts, on the 18th of April, for another method of attaining the same end, as may be seen in the account of it in the present number.”
Journal of the Franklin Institute Vol. 5, Aug. 1829 pgs. 122-123
|
|
