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engineer, for certain improvements in machinery and apparatus for raising, forcing, conveying, and drawing off liquids.-Sealed 8th September-6 months for inrolment.

James Insole, of Birmingham, sadlers' ironmonger, for improvements in the manufacture of brushes.-Sealed 8th September -6 months for inrolment.

Joseph Henry Tuck, of Francis-place, New North-road, engineer, for certain improvements in machinery or apparatus for making or manufacturing candles. Sealed 8th September-6 months for inrolment.

William Edward Newton, of the Office for Patents, 66, Chancery

lane, in the county of Middlesex, civil engineer, for improvements in machinery or apparatus for making or manufacturing screws, screw-blanks, and rivets,-being a communication.Sealed 8th September-6 months for inrolment.

Herbert, George James, of Great Tower-street, in the city of London, merchant, for certain improvements in machines or apparatus for weighing various kinds of articles or goods,— being a communication.-Sealed 8th September-6 months for inrolment.

William Fothergill Cooke, of Copthall-buildings, Esq., for improvements in apparatus for transmitting electricity between distant places, which improvements can be applied amongst other purposes, to apparatus for giving signals, and sounding alarums at distant places, by means of electric currents.-Sealed 8th September-6 months for inrolment.

Thomas Thirlwall, of Low Felling, Durham, engine-builder, for certain improvements in lubricating the piston rods of steamengines, and of other machinery.-Sealed 8th September-6 months for inrolment.

William Crofts, of New Radford, Nottingham, lace machinemaker, for improvements in the manufacture of figured or ornamented lace.-Sealed 8th September-6 months for inrolment.

Thomas Marsden, of Salford, in the county of Lancaster, machine-maker, and Solomon Robinson, of the same place, flax

dresser, for improvements in machinery for dressing or heckling flax and hemp.-Sealed 8th September-6 months for inrol

ment.

James Wake, Junr., of Goole, in the county of York, coal-factor, for certain improvements in propelling vessels.-Sealed 9th September-6 months for inrolment.

John Rolt, of Great Cumberland-place, Esq., for certain improvements in saddles.-Sealed 15th September-6 months for inrolment.

Frederick Bowles, of Moorgate-street, London, for a new method, by machinery, of preparing flour from all kinds of grain and potatoes, for making starch, bread, biscuit, and pastry,-being a communication.-Sealed 15th September-6 months for inrolment.

Christopher Nickels, of the York-road, Lambeth, Gent., and Caleb Bedells, of Leicester, manufacturer, for improvements in fabrics produced by lace machinery.-Sealed 15th September-6 months for inrolment.

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William Henry James, of Martin's-lane, civil engineer, for certain improvements in railways and carriage-ways, railway and other carriages, and in the mode of propelling the said carriages, parts of which improvements are applicable to the reduction of friction in other machines.-Sealed 16th September-6 months for inrolment.

John Sanders, William Williams, Samuel Lawrence Taylor, and

William Armstrong, all of Bedford, agricultural implement makers; and Evan William David, of Cardiff, for improvements in machinery for ploughing, harrowing, and raking land, and for cutting food for animals.-Sealed 22nd September-6 months for inrolment.

Patrick Stead, of Halesworth, Suffolk, malster, for improvements in the manufacture of malt.-Sealed 22nd September6 months for inrolment.

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John Juckes, of Putney, Gent., for improvements in furnaces.Sealed 22nd September-6 months for inrolment.

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Venus R. A. 16h. 27m. dec. 25.

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J. LEWTHWAITE, Rotherhithe.

THE

London

JOURNAL AND REPERTORY

OF

Arts, Sciences, and Manufactures.

CONJOINED SERIES.

No. CXXXI.

Recent Patents.

TO THOMAS KNOWLES, of Manchester, in the county of Lancaster, cotton spinner, for certain improvements in machinery or apparatus used in the preparation of cotton and other fibrous substances.—[Sealed 1st August, 1839.]

THESE improvements in machinery or apparatus, used in the preparation of cotton and other fibrous substances, consist, firstly, in the application of a certain novel arrangement of mechanism to carding, drawing, and roving machines, used or employed in the preparation of cotton and other fibrous substances, for spinning; and secondly, in the application of a single twisting tube or guide, to drawing and roving frames, which may be used in combination with the aforesaid improvements, for the purpose of imparting sufficient tenacity to the sliver before winding it upon a bobbin, to enable it to be unwound without injury, in the subsequent process.

The principal feature of novelty, in the first part of the improvements, is effected by passing the sliver, as it proceeds from the doffing end of the carding-engine, along

VOL. XXI.

and around a moveable expanding guider, which prevents any unequal tension or stretching of the sliver, as it is conducted to the bobbin, at whatever part of the bobbin the sliver may be winding on.

In Plate IX., fig. 1, is a side elevation, representing the first part of the improvements, as applied to a carding-engine, for carding cotton; fig. 2, is a plan or horizontal view, as seen from above; and fig. 3, is a vertical section, taken through the same

It will be observed, that the improvements are only applicable to those machines in which the filaments, slivers, or slubbings of cotton, &c., are wound upon bobbins, instead of being placed in cans.

Part of the cast-iron framing, of an ordinary cardingengine, is shewn at a, a, which is the doffing end; b, is the filament of cotton, proceeding through the trumpet or cone c, to the ordinary drawing-box d, d; from thence the cotton proceeds, in a band or sliver, along the jointed guider d1, d1, and around the central projecting pin e, which is placed at the middle of the guider, upon an ordinary swivel or rule-joint. The sliver of cotton thus proceeds through the guide f, f, and under the pressing-roller g, g, whence it is coiled or wound upon the bobbin h, h, as it revolves upon the drum i, i.

Motion may be given to the apparatus, from any convenient part of the carding-engine or other machine, to which it is applicable.

The shaft, being a part of the carding-engine, is, in this instance, used for giving motion to the drawing-rollers: a small pulley m, is fixed upon it, and a strap being passed round this pulley, and a larger pulley n, fixed on the axis of the drum or bed-roller i, i, this drum is caused to revolve, and, by friction of contact, enables the bobbin to wind on the sliver. At the same time, by means of the mitre-wheels o, o, and shaft v, motion is communicated to the manglepinion p, and mangle-rack q, in order to traverse the guide or arm ƒ, (which is fastened to the rack q,) from end to end of the bobbin, as the sliver is wound up.

It must be here observed, that as the bobbin winds up

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