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LAW REPORTS

of

PATENT CASES.

BY

WILLIAM CARPMAEL, ESQ.,

MEMBER OF THE HONOURABLE SOCIETY OF LINCOLN'S INN,
MEMBER OF THE INSTITUTION OF CIVIL

ENGINEERS, ETC., ETC.

VOLUME II.

LONDON:
PRINTED AND PUBLISHED BY A. MACINTOSH,

20, GREAT NEW STREET.

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This patent was originally granted to the defendant, Mr. Williams, and assigned to the plaintiff. The invention consisted of causing hair, or other fibres, separate or mixed, to be spread out in an even manner on to a travelling endless surface of wire-cloth, such endless cloth, with the fibres spread thereon, meeting with a second endless cloth in such mapper. that the layer of fibre became enclosed between the two endless wire-cloths, and in this state the fibres were passed into and impregnated with melted pitch, tar, or other cement; the fibres so between the wire-cloths were then pressed between pressing-rollers, and the excess of adhesive matter was expressed therefrom. By these means the fibres were made into a continuous sheet, and capable of being used for the sheathing of ships, and a variety of other purposes, for which felt had been previously used. The defendant took out another patent, and proceeded to work thereon. The process consisted of throwing fibres into a chamber, in one part of which there was a cylinder covered with wire-cloth, and from which the air was withdrawn, to produce a partial vacuum,--so that the fibres, by the rush of air to and through the cylinder, were carried against the surface of the cylinder, a

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