nish has attained the suitable degree the aloe : exposed by degrees to the of Auidity, it is suffered to stand a air, this colour resists the acids and few days, and when it has become the alkalies. At first the liquid be. very clear, the varnish is to be de. comes red, and at the end of a cer. canted off.

tain period turns to a beautiful pur. This varnish is made without heat, ple violet, which adheres to silk by is very clear and colourless, may be simple immersion without the aid of applied with equal success on paste. acide. board, wood, and metals, and may be M. Degen, a watch-maker of Vi. worked and polished with care, in- enna, is said to have invented a madeed better than any known varnish. chine by which a person may rise in It may be used on paintings, and sin. the air. This contrivance consists of gularly heightens their beauty. two parachutes of taffeta, which may A new process for making

a beau. be folded up or extended at pleasure, tiful lake colour has been discover. and the person who guides them is ed by a German chemist. On a placed in the centre. M. Dagen is quantity of cochineal pour twice its said to have risen by means of this weight of alcohol, and as much dis- machine to the height of 54 feet, in tilled water. The mixture being in- presence of numerous spectators in fused for some days near a gentle fire, Vienna. This invention has directed and then filtered, add a few drops of the attention of some of our own solution of tin, and a red precipitate countrymen to the construction of a will be formed. Continue two hours machine for the same purpose. An to add a little solution of tin till account of their labours will be found the whole of the colouring matter is in our next volume for 1810. precipitated, and then edulcorate the An instrument for throwing light precipitate by washing it in a large into the interior of the animal body quantity of distilled water. When the is announced in several of the foreign precipitate is dry, it is then ready for journals, as the invention of M. Bozuse.

zini. It is said to be composed of a The aloe, which has hitherto been recipient, containing the light of tubes considered only as a medical plant, for conveying the rays to the cavi. has been recently applied to many ties which are to be enlightened, and useful purposes. In the East Indies of reflecting tubes for the purpose of its juice has been employed as a transmitting the luminous rays to the varnish to preserve wood, and even eye of the observer. We are disposed the skins of living animals, from the to think, that if such a machine has attacks of worms and insects. An been constructed, it cannot possibly aquatic solution of hepatic aloes has answer the object of its inventor. been found of great service to natura- A new method of preparing the lists in preserving young plants from extract of opium, without any of that insects, and dead animals and vegeta- smell for which it is distinguished, bles from putrefaction. According has been successfully employed by to Perner, a simple decoction of aloes M. Parmentier. Twenty-four ounces communicates to wood a fine brown of opium being macerated for five colour. M. Fabroni of Florence has days in rain water, boil it for a quar: extracted a beautiful violet colour ter of an hour with 2lbs. of pul. from the juice of the fresh leaves of verised charcoal, and after it is strain. this carriage.

ed and clarified with the white of an opticians of the present age. The egg, 12 ounces of extract will be ob. division of the instrument is accomtained after suitable evaporation. plished by ocular inspection. The

A new travelling carriage, which usual tools for graduating are not forms a complete habitation, has employed, and the whole operation been invented by M. Franconi. It is so contrived that no error can take consists of a body 15 feet long, 74 place, but what is chargeable to viwide, and 6 high, elevated 3 feet sion, when aided by the best optical from the ground upon the wheels of instruments for viewing and measua common curricle. "Racks are placed ring the most minute quantities. As upon the four sides capable of feed. we cannot convey to our readers a ing 16 or 20 horses, and the canvas proper idea of this valuable invention, which covers the carriage when in we must refer them to the Philos, motion may be raised as a pavilion for Trans. for 1809, in which it is fully the purpose of sheltering the horses. explained by its author. The interior of the machine is di. A very simple, though a very vided by a partition into two apart. great improvement in the construc. ments, and there is a gallery in front, tion of forcing frames for hot-beds to which the traveller can go with has been made by T. A. Knight, out alighting. Four horses are only Esq. In the common method the necessary for travelling post with surface of the bed is made horizon.

tal, but, to give some degree of elevaA new and simple method of fil- tion to the glass, the north end of tering water has been applied on a the frame is made nearly twice as large scale by M. Alexandre, for deep as the other, so that if the purifying the waters of the Garonne. mould was, as it ought to be, of the It consists in merely conveying the same depth over the whole bed, the fuid through the capillary tubes of plant would be too far removed from a piece of half-worn-out cotton, the glass at one end of the frame, and which will allow the fluid to pass in a want room at the other end. To state of extreme limpidity:

remove this inconvenience, Mr Knight The pyrolignous acid obtained proposes to place the hot-bed on an from the distillation of wood has been inclined plane of earth raised about applied, by M. Vitalis, to the dyeing 15 degrees, making the surface of of thread and cotton, and the process the dung and mould parallel with it, has been introduced into all the ma. and accommodating the shape of the nufactories of Rouen, where black frame to the surface of the bed. By cottons for mourning, which were this means, the plants on the mould formerly procured from Holland, are of the hot-bed are more exposed to now dyed in a cheap and substantial the rays of the sun, while the ex. manner. The colour lasts very long, pence of the forcing frame is dimi. and is not liable, like common blacks, nished. Mr Knight has used with to turn rusty.

great success a hot-bed of this deA new method of dividing astro- scription for forcing grapes. He planomical and other instruments has ces the bed three feet from the wall, been lately carried to great perfec. to which the vines are trained, and intion by Mr Edward Troughton of troduces their branches into the London, one of the most celebrated frame through holes made at the

worth end of it, as soon as the first rell. When formed in this new way, violent heat of the bed has subsided. muffles are said to be both cheaper By this means a most abundant crop and stronger than when manufactumay be obtained.

red in the common way. See Trans. Mr Martin Furnass has invented a of the Society for the Encouragement new air-tight door hinge, of which of Arts. an account will be found in the A machine for closing boots and Trans. of the Society of Arts. shoes in a standing posture has been

An improved method of construct- invented by MrA. Stass. A drawing ing muffles for chemical purposes has and description of it will be found in been invented by Mr Edmund Tur- the Trans. of the Society of Arts.

N. B. Well authenticated Facts for this branch of our Work will be thankfully received, and it is requested that Communications may be addressed under cover to the Publishers of the Register, al No. 48, Hanover Street, Edinburgh.





Jan. 17. For a process of setting Peek, of Charlotte row, Fort Place, blue lead, for corroding the same into Bermondsey, Surrey, mill-wright. white lead. To John Brierly, of River Jan. 23. A method for the appliBank, in the county of Flint. See cation of stamps, dies, and piercing Repertory of Arts, June 1809, p. 11. tools, to the manufacturing of ears,

Jan. 23. For manufacturing a cer- handles, and bewels for culinary ar. tain description of wooden boxes,call. ticles of every description, whether ed chip boxes, or pill boxes, of all in wood, iron, brass, copper, tin, sil. the various sizes and shapes hitherto ver, or any mixed metals. To Samade. To James Goddart of New. muel Whitfield, of Church Street, man street, gent. See Repertory of Birmingham, brazier and scale-beam Arts, July 1810, p. 73.

maker. Jan. 23. For an improved method Jan. 26. For a transcendant ord. of hanging the bodies, and of con- nance, or improved cannon, for either structing the perches of four-wheeled marine, fort, or field service. To carriages, by which such carriages Michael Logan, of Rotherhithe, ciare rendered less liable to be over vil engineer. turned ; and of constructing perch- Jan. 28. For a method of casting bolts and collar-braces. To Edward metallic and other bodies, together or Stracy, of Parliament street, West- separately, in moulds, in the state of minster, Esq. See Repertory of Auidity or softness, in order that the Arts, April 1809, p. 289.

said bodies may preserve the figures Jan. 23. Machine for casting thus obtained, when they shall afterprinting types, by which three mo- wards become solid or consistent by tions out of five, made in the ordina- cooling, or by any chemical or other ry method, are saved. To John change which shall or may take place or be produced in the nature, order, Feb. 7. Certain improvements on or proportions, or quantities of the machines applicable to various kinds component parts or ingredients of of spinning. To Archibald Thomthe same. To Anthony George son, of Manchester, engineer. Eckhardt, of Berwick street, Soho. Feb. 7. For certain improvements

Jan. 29. Improvements on patent in the manufacture of soap, to wash machinery, for cutting and placing with sea water, with hard water, and paper ; also certain machinery for the with soft water. To William Evermanufacture of paper by a new me. hard, Baron Doornik, of Old Lisle thod. To John Dickinson, of Lude street, Leicester Square. See Regate Hill, London, stationer.

pertory of Arts, Nov. 1810, p. 321. Feb. 4. For certain methods of Feb. 9. For a method of manufacmanufacturing various kinds of me- turing cards which are employed in tal laces, so as to imitate gold and the carding and spinning of fax, tow, silver laces; and also of manufactu. wool, cotton, and silk, so as to comring gold and silver open lacés. To bine the quality of a fine card with George Finch, jun., of King street, the strength of a coarse one. To Soho, orris weaver. See Repertory John Stead, card manufacturer, Leith of Arts, July 1809, p. 65.

Walk, Edinburgh. Feb. 4. For a new process of free. Feb. 13. For a peculiar construcing tarred ropes from the tar, and tion for the purpose of burning coke rendering them fit for the use of the and lime, whereby the superfluous manufacturer. To Thomas Potts, heat of the fire used in burning the of Hackney.

coke is applied to burning the lime, Feb. 7. For certain improvements and also whereby much fre may be upon a patent open stove, or appara- rendered perpetual, and which is detus for carbonising all sorts of raw nominated the “ Union and perpetual fuel and combustibles, and reducing Kiln." To James Grellier, of Ald. them into superior fuel or coke and borough Hatch, in the county of Escharcoal, as well as for extracting sex, Esq. See Repertory of Arts, and saving during the same process, Oct. 1809, p. 259. the oil, tar, pyroligneous vegetable Feb. 13. "For a thermometer, or acid and ammoniacal coal liquors; machine for ascertaining the heat of and for extracting and refining all the bakers' ovens and various other purinflammable air or gas, so as to de- poses. To Stephen Hooper, of Walprive it of all disagreeable odour du. worth, in the county of Surrey, gent. ring combustion, and rendering the See Repertory of Arts, Nov. 1810, gas itself salutary for human respi. p. 324. ration when properly diluted with Feb. 21. For a new method of atmospheric air. To Frederick Al. manufacturing all kinds of boots, bert Winsor, of Pall-mall, Esq. See shoes, and other articles, by means of Repertory of Arts, Dec. 1810, p. 6. a substitute for thread made of hemp,

Feb. 7. For a mode of construc. flax, or other yarns. To David Meade tion or arrangement for any building, Randolph, a citizen of Virginia, in so as to afford security against fire, the United States of America, but at with other advantages.' To William present residing near Golden Square, Congreve, of Cecil street, Strand, in the county of Middlesex, merchant, Esq. See Repertory of Arts, Sept. who, in consequence of a communi- . 1810, p.981.

tion made to him from his friend and

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