Adderley Willcocks Sleigh, K. T. S., of Manchester, Captain, in Her Most Faithful Majesty's Service,-for a certain method or certain methods of effecting and forming sheltered floating harbours of safety, by the employment of certain buoyant sea barriers, applicable thereto,-and which said improvements are also applicable to and useful for the formation of breakwaters, floating bridges, light-houses, and beacons; the protection of pier-heads, embankments, and for other similar purposes. Sealed 8th February-6 months for inrolment. Charles Hancock, of Grosvenor-place, artist, for certain improvements in printing cotton, silk, woollen, and other stuffs. -Sealed 8th February-6 months for inrolment.

Benjamin Biram, of Wentworth, Yorkshire, colliery viewer, for certain improvements in the construction and application of rotary engines. Sealed 8th February-6 months for inrolment.

Frederick Harlow, of Rotherhithe, carpenter, for improvements in paving or covering roads and other surfaces, and in machinery for cutting the material to be used for those purposes. -Sealed 9th February-6 months for inrolment. Isham Baggs, of King's-square, Middlesex, chemist, for improvements in obtaining motive power, by means of carbonic acid; and also by a peculiar application of heated air.-Sealed 9th February-6 months for inrolment.

Christopher Nickels, of York-road, Lambeth, Gent., for improvements in the manufacture of plaited fabrics.-Sealed 10th February-6 months for inrolment.

William Brook Addison, of Bradford, manufacturer, for certain improvements in machinery for spinning worsted and woollen yarn.-Sealed 10th February-6 months for inrolment. George Jarman, of Leeds, flax spinner, Robert Cook, of Hathersage, Derby, heckle and needle manufacturer, and Joshua Wordsworth, of Leeds, aforesaid, machine maker, for certain improvements in machinery for spinning flax, hemp, and tow. -Sealed 14th February-6 months for inrolment.

James Andrew, of Manchester, manufacturer, for certain im

provements in the method or process of preparing or dressing yarns or warps for weaving.—Sealed 15th February-6 months for inrolment.

Charles Thomas Holcombe, of Bankside, Southwark, iron merchant, for certain improvements in the manufacture of fuel, and in obtaining products in such manufacture.-Sealed 15thFebruary-6 months for inrolment.

John Osbaldeston, of Blackburn, Lancaster, metal heald maker, for improvements in looms for weaving.-Sealed 15th February-6 months for inrolment.

Alexander Rousseau, of the Strand, manufacturer, for improvements in fire-arms,-being a communication.-Sealed 15th February-6 months for inrolment.

George Haden, of Trowbridge, Wilts, engineer, for certain improvements in apparatus for warming and ventilating buildings. -Sealed 15th February-6 months for inrolment.

John Lewthwaite, of East-street, Manchester-square, engineer, for improvements in steam-engines and boilers.-Sealed 15th February-6 months for inrolment.

Thomas Russell Crampton, of Lisson Grove, engineer, and John

Coope Haddan, of Moorgate-street, London, civil engineer, for improvements in steam-engines and railway carriages.Sealed 15th February-6 months for inrolment. Robert Wornum, of Store-street, Bedford-square, piano-fortemaker, for improvements in the actions of piano-fortes.-Sealed 15th February-6 months for inrolment.

Daniel Greenfield, the Elder, of Birmingham, brass-founder, for an improvement in the manufacture of hollow metal knobs for the handles of door and other locks.-Sealed 21st February—6 months for inrolment.

Moses Poole, of Lincoln's-inn, Gent., for improvements in treating, refining, and purifying oils and other similar substances,being a communication.-Sealed 21st February-6 months for inrolment.

THE

London

JOURNAL AND REPERTORY

OF

Arts, Sciences, and Manufactures.

CONJOINED SERIES.

No. CXXIV.

Recent Patents.

TO CHARLES EDWARDS AMOS, of Great Guildford-street, in the Borough of Southwark, millwright and engineer, for certain improvements in the manufacture of paper. -[Sealed 10th November, 1840.]

THESE improvements in the manufacture of paper, consist, firstly, in gradually lowering the roll of the engine in which the rags are prepared and converted into pulp; secondly, a mode of regulating the supply of pulp to the papermaking machine, in order to produce papers of any required thickness; thirdly, an improved sifter or strainer, through which the pulp is passed, for the purpose of arresting the knots and lumps; fourthly, certain novelties in the construction, arrangement, and action of parts of the machine, in which the pulp is deposited, that is moulded or made into continuous lengths of paper; fifthly, an improved method of heating the cylinders of the apparatus, whereby the newly made paper is dried; and sixthly, improvements in the machinery, by which the continuous length of paper is cut up into sheets of any required dimensions.

VOL. XX.

T

The machinery, for beating or grinding the rags into pulp, is shewn in Plate VII., fig. 1, being an elevation of the machine, and fig. 2, an end view of the same.

In the end of the water-wheel shaft, shewn at x, is an excentric pin, which acts as a crank, and transmits motion through the rods a, a, a, and the bell-crank levers b, b, to the lever c, which hangs upon a pin, fixed in the side of the engine.

On the lever c, a pall d, is mounted, which takes into the teeth of a ratchet-wheel e, fixed upon an axle, turning in a bracket, attached to the side of the engine. On this axle there is a worm or endless screw g, working into a worm-wheel h, upon the upright shaft i; and on this shaft i, a screw-thread is cut, which works in a box or nut j, in order to raise or lower it.

A long lever k, is attached by a pivot at one end to the side of the engine, and its other end is supported by the box or nut j. Near the middle of the lever k, the sliding plummer-box, has its bearing, in which the axle m, of the engine-roll n, is supported; and a corresponding motion may be transmitted, in any convenient manner, to a similar lever k, on the opposite side of the engine, if thought desirable.

The roll being, at the commencement of the work, placed in its highest position, in order to perform light work, the rotation of the water-wheel shaft, or other first mover, through the cranks and rods a, a, and b, b, gives a continuous vibrating action to the lever c, and hence causes the click d, to produce an intermittent rotary movement of the ratchet-wheel and its worm-shaft g, which, by turning the worm-wheel h, and its vertical shaft i, gradually lowers the screw-boxj, and thereby allows the lever k, and plummerblock 1, to descend and let down the roll n, nearer to the plate.

As all kinds of rags cannot be beaten off in the same