James Ions, of Newcastle-upon-Tyne, Gent., for improvements in smelting copper ores.-Sealed 18th January-6 months for inrolment.

Julius Bordier, of Austin Friars, merchant, for certain improve

ments in preparing skins and hides, and in converting them into leather.-Sealed 13th January-6 months for inrolment. Caleb Bedells, of Leicester, manufacturer, and Joseph Bedells, of the same place, assistant to the said Caleb Bedells, for improvements in the manufacture of elastic fabrics, and articles of elastic fabrics-Sealed 13th January-6 months for inrol

ment.

Joseph Barnes, of Church, near Accrington, Lancashire, manufacturing chemist, for certain improvements in the working of steam-engines.-Sealed 13th January-6 months for inrolment. Henry Waterton, of Winsford Lodge, Chester, Esq., for improvements in the manufacture of salt.-Sealed 13th January -6 months for inrolment.

John Jeremiah Rubery, of Birmingham, umbrella and parasol furniture manufacturer, for improvements in the manufacture of a certain part of umbrella and parasol furniture.-Sealed 18th January-6 months for inrolment.

Moses Poole, of Lincoln's-inn, Gent., for improvements in the construction of locks,-being a communication.-Sealed 15th January-6 months for inrolment.

John Thackeray, of Nottingham, lace thread manufacturer, for improvements in the process of preparing and gassing thread or yarn.-Sealed 15th January-6 months for inrolment. Thomas Lambert, of Regent's Park, musical instrument-maker, for improvements in the action of cabinet piano-fortes.-Sealed 15th January-6 months for inrolment.

Edward Palmer, of Newgate-street, philosophical instrumentmaker, for improvements in producing, printing, and embossing surfaces. Sealed 15th January-6 months for inrolment. James Cole, of Youl's-place, Old Kent-road, brush manufacturer, for certain improvements in the construction of brushes.Sealed 15th January-6 months for inrolment.

Cornelius Ward, of Great Tichfield-street, musical instrument

maker, for improvements in flutes.-Sealed 18th January-6 months for inrolment.

William Tindall, of Cornhill, ship owner, for a new and improved method of extracting or manufacturing from a certain vegetable substance, certain materials, applicable to the purposes of affording light and other uses.-Sealed 19th January-6 months for inrolment. William Baker, of Grosvenor-street, Grosvenor-square, surgeon, for certain improvements in the manufacture of boots and shoes. Sealed 27th January-6 months for inrolment. John James Baggaly, of Sheffield, seal engraver, for certain improvements in making metallic dies and plates for stamping, pressing, or embossing.-Sealed 27th January-6 months for inrolment.

Andrew Kurtz, of Liverpool, manufacturing chemist, for certain improvements in the manufacture of artificial fuel.-Sealed 27th January-6 months for inrolment.

Francis Marston, of Aston, in the county of Salop, Esq., for improvements in apparatus for making calculations.-Sealed 27th January-6 months for inrolment.

Samuel Mason, of Northampton, merchant, for improvements in clogs, part of which improvements is applicable to shoes and boots.-Sealed 27th January-6 months for inrolment. Gottlieb Boccius, of the New-road, Shepherd's Bush, Gent., for certain improvements in gas, and on the methods in use, or burners for the cumbustion of gas.-Sealed 27th January6 months for inrolment.

William and John Galloway, and Joseph Haley, of Manchester, engineers, for certain improvements in machinery for cutting, punching, and compressing metals.-Sealed 27th January— 6 months for inrolment.

Pierre Journet, of Dean-street, Soho, engineer, for improvements in steam-engines, being a communication. - Sealed 27th January-6 months for inrolment.

Henry Benjamin, of St. Mary-at-Hill, fish factor, and Henry Grafton, of Chancery-lane, machinist, for improvements in preserving animal and vegetable matters.-Sealed 27th January—6 months for inrolment.

CELESTIAL PHENOMENA FOR FEBRUARY, 1842.

Her. in conj. with the D diff. of 22 dec. 5. 28. S.

in conj. with the D diff. of dec. 24 5. 38. S.

Mercury R.A. 22h. 58m. dec..

Juno R. A. 16h. 26m. dec. 10. 27 4 42 33. S.

THE

London

JOURNAL AND REPERTORY

OF

Arts, Sciences, and Manufactures.

CONJOINED SERIES.

No. CXXIII.

Recent Patents.

To WILLIAM NEWTON, of the Office for Patents, 66, Chancery-lane, in the county of Middlesex, civil engineer, for an invention of certain improvements in machinery or apparatus for making or manufacturing screws,-being a communication.-[Sealed 24th October, 1839.]

THESE improvements in machinery or apparatus for making or manufacturing screws, were communicated to the patentee by Dr. Hull, of the United States, and apply principally to that class or description of machinery for making metal screws, commonly called wood screws, and consist in improved constructions and arrangements of machinery, containing certain novel mechanical agents, adapted to perform the several offices of cutting the screw-shafts or blanks, forming the head, trimming and nicking or notching them, and cutting the thread upon the shaft.

VOL. XX.

K

In Plate IV., fig. 1, represents a horizontal view of the machine for forming and heading the screw-blanks; fig. 2, is a vertical section, taken longitudinally through the machine, in the direction of the dotted line a, b; and fig. 3, is also a vertical section, taken transversely through the machine, in the direction of the dotted line C, d.

This machine is mounted upon suitable frame-work and standards, to support the several axles, the fulcra of levers, and the sliding or moving parts. A length of wire or rod a, a, is fed into the machine; it may be of wire from a hank, placed at the side, whence it proceeds between rollers b, b, which draw the wire forward; c, c, c, are the rollers, which straighten it as it advances. The end of the wire is protruded through an aperture in the frame, and through the open dies d, d, and it is in that situation afterwards held firmly by the closing of the dies. By a lateral movement of the dies, the piece of wire so held is cut off at the proper length for forming one shaft or screw-blank, the back of the dies having a cutting edge, which is brought against a stationary piece f, fixed in the frame-work, forming the other edge of the cutter. The position of the screwblank, held in the dies, being now opposite to the punch g, is favorable for the operation of heading; and the punch being made to approach the protruded end of the wire-shaft, compresses the end of the wire into a recess in the dies, and thereby forms the head.

A, A, A, is the main shaft or rotary axle, on which the several wheels and cams are fixed for working the operating parts of the machine. The axle is driven by a band and rigger, and is governed by a fly-wheel. Upon this shaft a cam B, is fixed, in which an excentric groove is formed, as represented by dots. A sliding bar c, c, has a roller at one end, working in the groove of the cam B; and the reverse end of this sliding bar is jointed to one arm of a lever