The Emporium of Arts and Sciences, Հատոր 2John Redman Coxe, Thomas Cooper Joseph Delaplaine, 1812 Contains instructional essays on a wide range of topics, including, but not limited to: the art of making gun flints, the construction of a movable table for the use of engravers, preparing ox-gall, blowing up rocks under water, the manufacture of iron and steel wire and gilt buttons, methods of telegraphic signalling (including smoke signals), and methods for preparing varnishes. Also contains numerous reports on topics such as: spontaneous combustion, the effect of magnetism on time-pieces, the remains of a woolly mammoth, the wines and champagne of France, the construction of theaters (and their acoustical properties), the qualities of rapeseed oil, and many other topics. |
From inside the book
Արդյունքներ 48–ի 1-ից 5-ը:
Էջ 48
... boiled with twelve pounds of water for an hour , or till one half of its quantity is evaporated . This liquor is then percolated through a hair sieve , and four ounces of vitriol , or sul- phate of iron , three ounces of gum arabic ...
... boiled with twelve pounds of water for an hour , or till one half of its quantity is evaporated . This liquor is then percolated through a hair sieve , and four ounces of vitriol , or sul- phate of iron , three ounces of gum arabic ...
Էջ 51
... boiling heat in order to ren der them as dry as the original materials were . If the substance to be analysed is a vegetable acid , it is to be combined with lime or barytes before mixing it with the byper - oxygenated muriate : the ...
... boiling heat in order to ren der them as dry as the original materials were . If the substance to be analysed is a vegetable acid , it is to be combined with lime or barytes before mixing it with the byper - oxygenated muriate : the ...
Էջ 63
... boiling water for a minute , then let them dry thoroughly , sprinkle them with starch , and rub them with a piece of dry linen , and they will resume their former lustre . Preparation of Linseed Oil , under the Denomination of Oil for ...
... boiling water for a minute , then let them dry thoroughly , sprinkle them with starch , and rub them with a piece of dry linen , and they will resume their former lustre . Preparation of Linseed Oil , under the Denomination of Oil for ...
Էջ 64
... boiled linseed oil , and keep it in a stone pot . 2. Take three pounds of verdigrise ; reduce it to an im- palpable powder ; mix it with the boiled linseed oil ; then put it into the stone pot which contains the umber . 3. Take of lamp ...
... boiled linseed oil , and keep it in a stone pot . 2. Take three pounds of verdigrise ; reduce it to an im- palpable powder ; mix it with the boiled linseed oil ; then put it into the stone pot which contains the umber . 3. Take of lamp ...
Էջ 69
... boil ; and then dissolving therein as great a quantity of old woollen rags , or shreds of cloth , as the ley will ... boiling ley , its fibres adhere to each other , and a very slight de . gree of agitation is sufficient to render its ...
... boil ; and then dissolving therein as great a quantity of old woollen rags , or shreds of cloth , as the ley will ... boiling ley , its fibres adhere to each other , and a very slight de . gree of agitation is sufficient to render its ...
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Common terms and phrases
acid advantage April 25 Arts ashes barilla boiling bolts borax bottle bottom braces C. B. pin calcined cheese cloth coat colour common composition construction copper curd degree dissolved edulcoration employed enamel engraving experiments feet fermentation fire fixed flax flux furnace gate give glass half heat hydrometer improvement inches invention iron John kind lead less lime linseed oil liquor litharge lower hook machine mammoth manner means metallic method mixed mixture mode necessary Nicholson nitric acid observed obtained operation ounces oxyd oxygen paint paper patent Phormium tenax piece plants plate platina potash pounds produced proper proportion pumice purpose puzzolana quantity render salt saltpetre screw shagreen side skins soap specific gravity stone substances sufficient surface thick Tilloch tion varnish vegetable vessel vine washing weight wheel whey whole William wine wood
Սիրված հատվածներ
Էջ 283 - State, signifying a desire of obtaining an exclusive property in the said improvement, and praying that a patent may be granted for that purpose : THESE ARE THEREFORE to grant, according to law, to the said NICHOLAS J.
Էջ 283 - In testimony whereof, I, Andrew Jackson, PRESIDENT OF THE UNITED STATES OF AMERICA, have caused these Letters to be made Patent, and the seal of the General Land Office to be hereunto affixed.
Էջ 283 - March one thousand eight hundred and thirty-one, the full and exclusive right and liberty of making, constructing, using and vending to others to be used...
Էջ 234 - ... a sieve. The feathers should be afterwards well washed in clean water, and dried upon nets, the meshes of which may be about the fineness of cabbage-nets. The feathers must be from time to time shaken upon the nets, and as they dry will fall through the meshes, and are to be collected for use.
Էջ 307 - Melt twelve ounces of resin in an iron pot or kettle ; add three gallons of train oil and three or four rolls of brimstone ; and when the...
Էջ 282 - That the author or proprietor of any such map, chart, book or books, shall, within six months after the publishing thereof, deliver, or cause to be delivered to the Secretary of State a copy of the same, to be preserved in his office.
Էջ 278 - Any person who has invented any new and useful art, machine, manufacture or composition of matter, or any new and useful improvement in any art, machine, manufacture or composition of matter...
Էջ 278 - ... the advantages of which he is desirous of securing to himself and his legal representatives : he therefore prays that letters patent of the United States may be issued, granting unto your petitioner, his heirs, administrators, or assigns, the full and exclusive right of making, constructing, using, and vending to others to be used...
Էջ 280 - He shall, furthermore, accompany the whole with a drawing, or drawings, and written references, where the nature of the case admits of drawings, or with specimens of ingredients, and of the composition of matter, sufficient in quantity for the purpose of experiment, where the invention or discovery is of a composition of matter...
Էջ 284 - I do hereby certify that the foregoing letters patent were delivered to me on the 28th day of April, in the year of our Lord 1825, to be examined; that I have examined the same, and find them conformable to law, and I do hereby return the same to the Secretary of State within fifteen days from the date aforesaid, to wit, on this 28th day of April, in the year aforesaid.