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the funnel with the several branches, numbers 1 2 3 4, for the purpose of admitting the air into the fire through the bottom. I also describe and ascertain the nature of my said invention of the fire-grate or fire-stove, and in what manner the same is to be performed, as follows, reference being also had to the drawing in the annexed schedule; that is to say: The fire-grate or fire-stove must be made with a pervious back, and must be placed in such a manner as that a space may be left between such pervious back and the back wall of the fire-place. Such space is intended to form an aperture for the admission of air into the back part of the fire through the pervious back, and a damper or valve is to be fixed at the bottom or top of such aperture, to regulate the admission of the air as circumstances may require. In the annexed schedule I have also delineated a drawing of a fire-grate or fire-stove; namely, Fig. 7, represents the section of a fire-grate or fire-stove, A shews the fireplace, BB the space between the pervious back and the back wall of the fire-place, CC the dampers or valves, DD the pervious back, G G the bars in the ordinary way, H the ash-pit, K the chimney.

In witness whereof, &c.

Specification of the Patent granted to EMANUEL HEATON, of Birmingham, Gun Finisher; for Improvements to the Locks and Breeches of Fire-arms, by rendering the Pans of Locks, and Communication between the Priming und Loading of Fire-arms, water-proof.

Dated March 23, 1814.

To all to whom these presents shall come, &c. Now KNOW YE, that iu compliance with the said proviso, I the said Emanuel Heaton do hereby declare that

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the nature of my said invention, and in what manner the same is to be performed, are particularly described and ascertained as follows; that is to say: The pan of the lock may be in the common or any other form, allowing sufficient capacity that the operator may chuse; but instead of being open-mouthed at the end next the barrel of the pan, its edge or lip must be elevated all round, and a rim or small interval lower than the edge must be left at the end of the pan next the touch-hole, between the edge of the pan and the barrel of the piece; the touch-hole may project about the sixteenth part of an inch towards the lock, and be let into an orifice made through the rim and edge of the pan to receive it. Around this orifice in the rim of the pan, and also round the touch-hole, a small groove must be formed, into which must be inserted a shred of leather or other elastic substance impermeable to water, that when the lock is screwed to the barrel of the piece, the projecting edges of the leather or other substance in the grooves may be pressed close and firmly by the barrel and nill of the lock reciprocally; the seat of the hammer must be of the same form as the pan, and project beyond its elevated edge all round, and must be hollowed out or made concave to the extent of the exterior of the edge of the pan. Into the cavity of the seat of the hammer, must be inserted a piece of leather or other substance, which, when pressed on it by the hammer-spring, will closely adhere to the edge of the pan; but leather I use; and this must be secured in its position by a plate of iron or other metal, of the form and size of the interior of the pan, fastened on the leather or other substance by a small screw passed through the seat of the hammer, and received by the plate; when the whole is thus prepared, the pressure of the hammer-spring on the edge of the

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pan will force the latter into the leather or other substance, and prevent the admission of air or water into the pan, and the projecting edges of the leather or other substance in the grooves of the rim, and round the touchhole, will also exclude air and water from it, and the communication between the priming and loading of the piece will be water-proof: the touch-hole may project in the manner above stated, but it is not necessary that it should. In witness whereof, &c.

This Patent is assigned to Mr. Theophilus Richards, Gun-maker, of Birmingham, who states that an experienced sportsman, to gratify the curiosity of a few friends. as well as to furnish himself with complete evidence of its effect, undertook in the face of the public to discharge a fowling-piece twenty-four times at some swallows on the banks of the canal, near Birmingham; between each discharge, after re-loading, he immersed the stock and lock of the piece in the canal. The time occupied was little more than an hour, and when it is considered that the piece never once missed fire, and, that he killed nineteen birds out of the twenty-four shots; it must be admitted, not only that the discharge was to the full as quick as can ever take place, but that all doubts of the invention answering every intended purpose must be entirely removed.

Air and water being excluded from the prime of these guns, causes 'them to explode much quicker than any others.

N. B. The Figs. 1, 2, 3, (Plate VII.) and references, are communicated by the present Proprietor of the Patent, but do not form part of the Specification.

Fig. 1, A the breech, B the touch-hole, with the rim of leather.

Fig. 2, C the orifice, communicating with the pan, having an elevated rim or bridge.

Fig. 3, D the pan open, corresponding with the reference C. E the hammer thrown open. F the plate securing the leather, which is represented by the dark rim surrounding the plate.

Specification of the Patent granted to EDWARD HEARD, of the Parish of Saint Luke, in the County of Middlesex, Chemist, late Chemical Director of the London Plate Glass Works, East Smithfield; for certain new and improved Processes for the Manufacture of Plate-glass. Dated August 9, 1813.

To all O all to whom these presents shall come, &c. NOW KNOW YE, that in compliance with the said proviso, I the said Edward Heard do hereby declare the nature of my said invention, and the manner in which the same is to be performed, are particularly described and ascertained as follows; that is to say: First, in the application or use of flints (previously reduced to a granular state by suitable mechanical means, and afterwards sifted through sieves of different-sized meshes, in order to separate the required numbers or sized grains) to be used as a substitute for, or in lieu of, sea, river, or other common sands heretofore employed for abrading or grinding of plate-glass, and which ground glass and sand has hitherto been thrown away as useless. Secondly, in the collecting or saving of the glass thus abraded, in the intermixed state with the ground flints, purifying the same from extraneous or injurious matters, and re-melting it for the re-production or composition of plate-glass, with an additional proportion of alkaline or other fluxes,

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the precise quantity of which must be determined by experiment, the amount depending on the presumed quantity of flints left in the combined mass.

In witness whereof, &c.

Specification of the Patent granted to ROBERT ADAMS, of Holborn, in the County of Middlesex, Shoemaker; for a new and improved Method of preparing Blacking, whereby a higher Polish is given, and the Leather better preserved than by any hitherto known.

Dated July 7, 1813.

To all to whom these presents shall come, & NOW KNOW YE, that in compliance with the said proviso, I the said Robert Adams do hereby declare that the nature of my said invention, and the manner in which the same is to be performed, is described and ascertained in the following explanation thereof; that is to say: In order to make forty gallons of blacking, take forty gallons of the vinegar commonly known by the number eighteen, ninety pounds of ivory-black, three gallons of sweet oil, wine measure, twenty-eight pounds of raw moist sugar, eighteen pounds of oil of vitriol, and twenty-six ounces of gum arabic, and procure a tub with a tin strainer fixed under its lid or cover, nearly of the same size as the lid and full of small holes; and with a hole in the lid sufficiently large to admit the pouring in of the liquid ingredients, for which purpose a funnel may be used if required: put the ivory-black, the sugar, the sweet oil, and four gallons of vinegar into the tub, and make them into a thin paste, then apply half the oil of vitriol through the lid and strainer, and after letting it stand between five and ten minutes, pour through the strainer about two gallons more of the vinegar, then take.

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