Repertory of Arts, Manufactures, and Agriculture: Consisting of Original Communications, Specifications of Patent Inventions ...T. and G. Underwood, 1808 |
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30. oldal
... iron frame to carry the wheels . B B are the wheels , having eacl : an iron plate screwed behind it , to prevent the saw from running off backward . C C is the blade of the saw . D is a bench or platform on which the piece to be cut is ...
... iron frame to carry the wheels . B B are the wheels , having eacl : an iron plate screwed behind it , to prevent the saw from running off backward . C C is the blade of the saw . D is a bench or platform on which the piece to be cut is ...
42. oldal
... iron , hemp , flax , wool , & c . all of which have been used indi- vidually and conjointly . I conceive that no invention is entitled to public pro- tection but on the basis of utility . The obtaining of any end to which the public are ...
... iron , hemp , flax , wool , & c . all of which have been used indi- vidually and conjointly . I conceive that no invention is entitled to public pro- tection but on the basis of utility . The obtaining of any end to which the public are ...
45. oldal
... iron pot , or even an earthen one , over which a piece of tile or plate of iron is loosely laid , In In taking the charcoal out of the filtering vessel , Description of a cheap filtering Apparatus , 45.
... iron pot , or even an earthen one , over which a piece of tile or plate of iron is loosely laid , In In taking the charcoal out of the filtering vessel , Description of a cheap filtering Apparatus , 45.
55. oldal
... iron work in the open air ; but , as it appears to me , most impro- perly : for I have remarked that on rubbing wood pai..ted white , and long exposed to the weather , the white - lead has come off in a dry powder like whiting ; as if ...
... iron work in the open air ; but , as it appears to me , most impro- perly : for I have remarked that on rubbing wood pai..ted white , and long exposed to the weather , the white - lead has come off in a dry powder like whiting ; as if ...
59. oldal
... iron pot or kettle ; add three gal- lons of train oil and three or four rolls of brimstone ; and when the resin and brimstone are melted and be- For this purpose there is the following receipt by Mr. Barker ' in Sir John Hawkins's ...
... iron pot or kettle ; add three gal- lons of train oil and three or four rolls of brimstone ; and when the resin and brimstone are melted and be- For this purpose there is the following receipt by Mr. Barker ' in Sir John Hawkins's ...
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Gyakori szavak és kifejezések
alkali ammonia apparatus applied axis barley basis of potash basis of soda bobbin capstan carbonic acid carriage centre charcoal colour comb combination common cylinders decomposition described diameter drawing drying oil duties on malt enrolled equal experiments exposed Fahrenheit fastened filament fixed fluid frame give globule grains grave accent heat hooks horses hydrogen improved inches invention iron leather machine malt manner means mercury metallic method moisture motion naphtha nearly necessary nitric acid oak timber oblique operation oxalic acid oxyds oxygen pallet paper pass Patent granted piece pinion placed plates platina poppy prevent produced proper proportion purpose quantity reel revolving rollers rope round screw shewn shews ship side specific gravity Specification spindle spinning strand strontian substance surface teeth thereof thread tion tube turn twisted upper vessel weight wheel wires wood XIII.-SECOND SERIES yarns
Népszerű szakaszok
238. oldal - Now Know Ye, that in compliance with the said proviso, I, the said Adolphe Nicole, do hereby declare that the nature of my said Invention, and the manner in which the same is to be performed, are particularly described and ascertained in and by the following statement thereof, reference being had to the Drawing hereunto annexed, and to the figures and letters marked thereon...
176. oldal - ... oxygen ; potash, 83.3 metal and 16.7 oxygen. It is particularly remarkable, that according to the above-mentioned gentleman's essay on the Decomposition and Composition of the fixed alkalies, in the Philosophical Transactions (a copy of which essay he has just favoured me with) it appears that " the largest quantity of oxygen indicated by these experiments was for potash 17, and for soda, 26 parts in 100, and the smallest 13 and 19.
258. oldal - I was induced by some observations I had previously made upon the burning of coal, to try the combustible property of the gases produced, from it, as well as from peat, wood, and other inflammable substances. And being struck with the great quantities of gas which they afforded, as well as...
116. oldal - A small piece of pure potash, which had been exposed for a few seconds to the atmosphere, so as to give conducting power to the surface, was placed upon an insulated disc of platina, connected with the negative side of the battery of the power of...
167. oldal - When the basis of soda is exposed to the atmosphere, it immediately tarnishes, and by degrees becomes covered with a white crust, which deliquesces much more slowly than the substance which forms on the basis of potash. It proves, on minute examination, to be pure soda. The basis of soda combines with...
121. oldal - ... negative energy, and the bases of the positive, do not remain in combination when either of them is brought into an electrical state opposite to its natural one. In the synthesis, on the contrary, the natural energies or attractions come in equilibrium with each other ; and when these are in a low state at common temperatures, a slow combination is effected ; but when they are exalted by heat, a rapid union is the result ; and as in other like cases with the production of fire. — A number of...
130. oldal - On naphtha colourless and recently distilled, as I have already said, it has very little power of action ; but in naphtha that has been exposed to the air it soon oxidates, and alkali is formed, which unites with the naphtha into a brown soap that collects round the globule. On the concrete oils (tallow, spermaceti, wax, for instance), when heated, it acts slowly, coaly matter is deposited, a little...
364. oldal - STONE": in which said Letters Patent there is contained a proviso obliging me, the said Joseph Aspdin, by an instrument in writing under my hand and seal, particularly to describe and ascertain the nature of my said invention, and in what manner the same is to be performed...
168. oldal - ... them with great energy. When nitrous acid is employed, a vivid inflammation is produced; with muriatic and sulphuric acid, there is much heat generated, but no light. When plunged, by proper means, beneath the surface of the acids, it is rapidly oxygenated; soda is produced, and the other educts are similar to those generated by the action of the basis of potash. With respect to the fixed and volatile oils and naphtha in their different states, there is a perfect coincidence between the effects...
125. oldal - When a globule of the basis of potash is placed upon ice it instantly burns with a bright flame, and a deep hole is made in the ice, which is found to contain a solution of potash.