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US Patent: 5,457X
Machine for Breaking Flax and Hemp
Patentees:
John C. Langdon (exact or similar names) - Troy, Rensselaer County, NY
Amos Salisbury (exact or similar names) - Troy, Rensselaer County, NY

USPTO Classifications:
19/29

Tool Categories:
agricultural : flax and hemp machines
trade specific : spinner

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Apr. 18, 1829

Patent Pictures:
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Description:
Some sources list the patent granted date as 17 Apr., 1829.

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.

“This improvement is a machine consisting of three sets of rollers, from two to three feet in length, and ten inches, or thereabouts, in diameter.

The first set made with wooden slats, or staves, standing edgewise, mashing into each other, similar to the teeth of wheels, and, in principle, like the fluted rollers.

Each roller is composed of a shaft; two flanches, or heads, into which the ends of the staves, or slats, are fastened; and the slats running parallel with the shaft. The edges, or points of the staves or slats, of the first set of rollers, are one and a half inch distant from each other.

The second set are made in the same way, with the edges, or points of the staves, or slats, at one and a quarter inch distant from each other; the teeth or slats are consequently more in number, and finer.

The third set are made in the same way, with the edges, or points, one inch apart; consequently the teeth, or slats, are still finer than the last.

These rollers are put into an inclined frame by sets; one roller of each set directly above the other of the same set, at right angles to the plane of the machine; the hemp, or-flax, to pass through between and lower of each set of rollers. To the shaft of each of the rollers is attached a cog wheel, which mashes into a corresponding one affixed to each of the adjacent rollers, so that by applying the moving power to either of the rollers, the whole of them are put in motion.

At the most elevated end of the machine is a platform 'so constructed that the hemp, or flax, laid upon it endwise to the rollers, will, by their revolution, be drawn between them; and, after passing through it, will be received upon a revolving cloth, or apron, at the other end of the machine, The machine is so constructed as to occupy very little space. The plan of this kind of roller we conceive is far better than the ordinary fluted roller, for breaking hemp or flax; the staves, or slats, being elastic, suffer the hemp, or fax, to pass through without mashing or tangling; and the spaces between the staves, or slats, and the openness of the roller, permit the shives to separate and fall through.

We propose to construct the staves, or slats, of wood, cast-iron, or wrought iron, according as the one or the other shall be found best to answer the purpose; their width, thickness, and form, may also be varied; the number of rollers, likewise, may be increased.”

Journal of the Franklin Institute Vol. 5, Aug. 1829 pg. 129

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