amount of the general estimate, including the above sum-the expense of houses and ground-the flood-arches and roads of approach, &c., to be £47,457." Upon receipt of this report, the Commissioners consented to make the required loan, but it being found that the Act limited the amount to be raised to £40,000, alterations in the structure were suggested by Mr. Lapidge, which received Mr. Telford's approval, and the works were commenced on the reduced scale. The bridge is of Grecian architecture and consists of five elliptical arches; it is constructed chiefly of brick, with ashlar facing. The abutments are terminated by towers, and the structure is surmounted by a cornice and balustrade, with galleries projecting over the piers. The span of the centre arch is 60 feet, with a versed sine of 19 feet; the side arches are 56 feet and 52 feet span, and 18 feet 3 inches and 16 feet 6 inches rise, respectively. The highest flood rises 6 feet above the springing line, and the lowest summer level is about the same distance below it. The foundations are all laid upon the substratum of blue clay. The length of the bridge is 382 feet to the extremes of the abutments, and the width between the balustrades is 25 feet. The proportion of the piers to the span of the arches is about th. The roadway is formed at an inclination of 1 in 40. The author then describes fully the construction of the abutments, piers, arches, and the superstructure. The work occupied about 2 years to the completion, the first stone having been laid on the 7th of November, 1825, and the bridge opened in form on the 17th of July, 1828. On the completion, Mr. Telford again made a report to the Exchequer Bill Loan Commissioners in these terms:-" With Mr. Lapidge, I examined the whole of the bridge and approaches, and taking it for granted that the foundations of the piers and abutments, which are under water, and which I had no opportunity of inspecting while in progress, are according to the working drawings, all the other parts are found in a very perfect state, and executed in a workman-like manner." The bridge has in every respect answered the object for which it was intended, and it has justified the good opinion Mr. Telford originally formed of it. During the fourteen years which have elapsed since its erection, it has required none other than the most trifling repairs, and the expectations of the trustees have been realized by the tolls having paid the allotted portion of the principal, up to the present time, as well as the interest of the money borrowed for its execution; and the cost of it did not exceed the amount of the estimate. The communication was accompanied by seven remarkably wellexecuted drawings, showing accurately all the details of the construction, and the Paper contained all the quantities of materials in the work, together with Mr. Telford's reports upon it, with other documents of interest. List of Disclaimers [To be continued. OF PARTS OF INVENTIONS AND Amendments MADE UNDER LORD BROUGHAM'S ACT. William Cook,-disclaimer and memorandum of alteration to patent dated 22nd February, 1840, for "improvements in carriages." Filed 5th April, 1843. 66 Thomas Robinson Williams, Esq.,-ditto to patent dated 14th February, 1833, for a new combination of fibrous materials, forming, by means of machinery, artificial skins, which may be applied to the purposes for which skins, leather, vellum, and parchments are now used." Filed 19th April, 1843. Moses Poole, ditto to patent dated 23rd August, 1839, for "improvements in introducing elastic materials into fabrics, to render them elastic or partly elastic." Filed 26th April, 1843. List of Patents Granted by the French Government from the 1st of January to the 31st of March, 1841. (Continued from page 163, Vol. XXII.) PATENTS FOR FIFTEEN YEARS. Bapterosses, of Paris, for improved lamps. Barthelemy, of Nancy, for an improved motive power. Boyet, of Lyons, for an improved hydraulic machine. Buisson, of Lyons, for manufacturing blue cheese. Canning, of Paris, for a machine for raising water and other liquids. Chapel and Charleroy, for improvements on rail-roads. Delvigne, of Paris, for a safe proof against fire. Douce, of Paris, for a new accordion. Dusourd, of Saintes, for chalybeate sugar for the preserving of meat. Féline, of Paris, for the application of bitumen as fuel. Fitz-Patrick, of Lille, for improved headles for looms. Grimoud, of Paris, for an improved power. Hartmann, of Paris, for a machine for folding every kind of fabric. Jacquin, of Troyes, for improvements in knitting frames. Janssen, of Brussels, for improved felt cloth. Jochem, of Paris, for an improved clasp, adapted to clogs. Kuhlmann, of Lille, for an improved hydraulic cement. Lepage, Philippe, and Vasserot, of Paris, for an improved propeller for navigation. Lesage, of Paris, for an improved press. Maille, of Paris, for a process for drying wood. Menu, of Paris, for an improved shade for wax candles. Moineau, of Paris, for an improved winding-up apparatus, applicable to clocks. Nicholson, of London, for improvements in steam-engines. Paravicini, Maillard, and Sallin, of Valentigny, for a method of converting into use the gas escaping from ovens and fire-places. Pecqueur, of Paris, for improvements on rail-roads and locomotives. Serveille and Pecqueur, of Paris, for an excavating machine. Thebert, of Paris, for improved fire-arms. Tissier, of Brest, for an extraction of soda from sea-weeds. Vergniais, of Lyons, for a machine for opening and spinning silk simultaneously. Vertel, of Paris, for a portable apparatus for carbonizing wood. Weschniakoff, of St. Petersburgh, for a new fuel called "carboleine PATENTS FOR TEN YEARS. Miles Berry, of London, represented in Paris by M. Perpigna, advocate, 2, ter: Rue Choiseul, for improvements in the mode of firing guns. VOL. XXII. 2 L Miles Berry, of London, represented in Paris by M. Perpigna, for improvements in wheels used on rail-roads. Chiffray, of Rouen, represented by M. Perpigna, for a machine for printing tissues in several colors. Claudot, of Verdun, represented by M. Perpigna, for a new mode of carbonizing wood. Perpigna, advocate, for an improved temple for weaving. Roberts, of Calais, represented by M. Perpigna, for an improved mode of manufacturing soap. Sudds, of Rouen, represented by M. Perpigna, for an improved jack. Waldeiron, of Marseilles, represented by M. Perpigna, for an improved hydraulic machine. Amerigo, of Oléron, for an improved framing for carriages. Boquet, of Paris, for an improved ink-stand. Bourbon, of Paris, for various products in terra cotta. Callard Davies, of London, for improvements in clocks. Carbon, of Rheims, for the application of heat to the spinning of combed wool. Chaudin, of Paris, for improvements in fire-arms. Camus Rochon, of Paris, for a new method of uniting steel with iron, for the manufacturing of sharp instruments. Delamotte, of Paris, for an improved boat. Dehez and Vandelbulcke, of Paris, for new means of uniting sheets of metal used for water-shoots. Demeure, of Lyons, for machinery for driving a calender by the strength of one man. Desmaret, of Paris, for a machine for drawing out the printed tissues during the operation of printing. Dive and Montauriol, of Charenton, for a mode of manufacturing a fatty substance for making candles. Dupille, Horner, and Vaillant, of Paris, for a new mode of making extract of Kina. Elmore, of London, for a mode of curing animal substances. Foster, of London, for machinery for preventing accidents on rail-roads. Fusz, of Paris, for an improved vehicle. Gillardin, of Marseilles, for a mode of deriving a power from the action of the waves. Godin, of Abbecourt, for a mode of drying up and preserving animal and vegetable substances. Godin Lemaire, of Esquiheries, for an improved stove. Grangier Brothers, of St. Chamond, for an improved batten for manufacturing ribbons. List of Patents Granted for SCOTLAND, subsequent to March 22nd, 1843. To Gregory Seale Walters, of Coleman-street, in the city of London, merchant, for improvements in the manufacture of chlorine and chlorides, and in obtaining the oxides and peroxides of manganese, in the residuary liquids of such manufacture,being a communication from abroad.-Sealed 23rd March. James Greenshields, of Monteith-row, Glasgow, Gent., for improvements in the manufacture of compositions for covering roads, streets, and other ways and surfaces, and in rendering fabrics waterproof,-to be used for covering buildings, bales, packages, and for other useful purposes.-Sealed 23rd March. Andrew Barclay, of Kilmarnock, in the county of Ayr, Scotland, engineer and brass-founder, for certain improvements in lustres, chandeliers, pendants, and apparatus connected therewith, to be used with gas, oil, and other substanccs.-Sealed 24th March. James Fletcher, of Salford, in the county of Lancaster, foreman at the works of Messrs. W. Collier and Co., engineers, for certain improvements in machinery or apparatus for spinning cotton and other fibrous substances.-Sealed 27th March. William Henry James, of Martin's-lane, in the city of London, civil engineer, for certain improvements in railways and carriage-ways, railway and other carriages, and in the modes of propelling the said carriages, parts of which improvements are applicable to the production of friction in other machines.Sealed 27th March. Claude Edward Deutsche, of Fricour's Hotel, St. Martin's-lane, in the county of Middlesex, Gent., for improvements in combining materials to be used for cementing purposes, and for preventing the passage of fluids; and also for forming or constructing articles from such compositions of materials,-being a communication from abroad.-Sealed 30th March. |