The Repertory of patent inventions [formerly The Repertory of arts, manufactures and agriculture]. Vol.1-enlarged ser., vol.40, Band 71771 |
Andere Ausgaben - Alle anzeigen
Häufige Begriffe und Wortgruppen
acid applied April arrangement atmospheric railways axis Bennet Woodcroft carriage cement centre claim closed cloth cock coloured glass combination construction cotton County of Middlesex cylinder December December 24 described the nature elastic employed Engineer ENGRAVING Enrolled fabric Fahrenheit February 25 fibrous materials figure Firstly fixed frame furnace Gentleman grooves gutta percha heat hides or skins hole inches india rubber invention consists iron January 20 leather lever liquid liquor locomotive longitudinal machine manner manufacture March 11 means ments metal Middlesex mode months motion mould moving obtained pans or coppers passes Patent granted pipe piston placed plates pounds preparation presents produced propelling pump purpose reservoir reverberatory furnace rollers screw Sealed Secondly shaft shown side spiral spring stannate steam substances suitable sulphur surface tannic acid tannin tanning tion traction-tube tube understood upper vacuum valve vessel weft wheel WILLIAM Woodcroft's
Beliebte Passagen
Seite 328 - Having thus described the nature of my invention, and the best means I am acquainted with for performing the same, I would wish it to be understood, that I do not confine myself to the precise details shown and described, so long as the peculiar character of either part of my invention be retained.
Seite 50 - Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is (d).
Seite 311 - Mr. Cornelius heated one end of a piece of thick plated copper to nearly the melting point of the metal; the silver at this end disappeared, and when the metal was cleaned by a solution of dilute sulphuric acid, the end which had been heated presented a uniform surface of copper, whilst the other end exhibited its proper coating of silver. The unsilvered end of the plate was next placed, for a few minutes, in a solution of muriate of zinc, by which the exterior surface of copper was removed, and...
Seite 93 - Now know ye, That in compliance with the said proviso, I, the said James Lowe, do hereby declare the nature of my said invention, and the manner in which the same is to be performed, are fully described, and ascertained in and by the following statement thereof, reference being had to the drawing hereto annexed, and to the figures and letters marked thereon...
Seite 312 - It is known to the jeweler that articles of copper plated with gold lose their brilliancy after a while, and that this can be restored by boiling them in ammonia. This effect is probably produced by the ammonia acting on the copper and dissolving off its surface so as to expose the gold, which by diffusion had penetrated into the body of the metal. The slow diffusion of one metal into another at ordinary temperatures, would naturally require a long time to produce a perceptible effect, since it is...
Seite 118 - For a long time past the author had felt a strong persuasion, derived from philosophical considerations, that among the several powers of nature which in their various forms of operation on matter produce different classes of effects, there exists an intimate relation ; that they are connected by a common origin, have a reciprocal dependence on one another, and are capable, under certain conditions, of being converted the one into the other. Already have electricity and magnetism afforded evidence...
Seite 60 - Lancaster, Consulting Chemist, for certain improvements in dressing, stiffening, and finishing cotton and other fibrous substances, and textile and other fabrics, part or parts of which improvements are applicable to the manufacture of paper, and also to some of the processes or operations connected with printing calicoes and other goods.
Seite 336 - becomes necessary, on account of the affinity this substance has for oxygen at high temperature, to exclude from it air and moisture. To accomplish this in the most perfect manner it should be enclosed in a Torricellian vacuum.
Seite 312 - Silver coins slightly alloyed with copper, after having lain long in the earth, are found covered with a salt of copper. This may be explained by supposing that the alloy of copper at the surface of the coin enters into combination with the carbonic acid of the soil, and being thus removed, its place is supplied by a diffusion from within, and...
Seite 78 - Bullough, do hereby declare that the nature of our said Invention, and the manner in which the same is to be performed...