London Journal of Arts, Sciences and Manufacturers, and Repertory of Patent Inventions, Band 17William Newton, Charles Frederick Partington W. Newton, 1841 |
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Seite 22
... mode of operating upon the threads , will be best seen by reference to the auxiliary fig . 3. The hook n , is fixed , and stands firm and erect , but the hook o , is loose , and capable of fall- ing over toward either side , it being ...
... mode of operating upon the threads , will be best seen by reference to the auxiliary fig . 3. The hook n , is fixed , and stands firm and erect , but the hook o , is loose , and capable of fall- ing over toward either side , it being ...
Seite 39
... mode of detecting any irregu- larity in the railway . " An Azimuth Cap as an addition to the common Level . ” By Edward Cowper . า It is sometimes desirable in levelling operations to ascertain the bearing of objects which are either ...
... mode of detecting any irregu- larity in the railway . " An Azimuth Cap as an addition to the common Level . ” By Edward Cowper . า It is sometimes desirable in levelling operations to ascertain the bearing of objects which are either ...
Seite 40
... mode of bending Discs of Silvered Plate Glass into concave or convex Mirrors , by means of the Pressure of the Atmosphere . " By James Nasmyth . The difficulty of obtaining large specula for telescopes , together with the disadvantages ...
... mode of bending Discs of Silvered Plate Glass into concave or convex Mirrors , by means of the Pressure of the Atmosphere . " By James Nasmyth . The difficulty of obtaining large specula for telescopes , together with the disadvantages ...
Seite 51
... mode of applying such engines to useful purposes . - Sealed 13th August . Downes Edwards , of Surbiton Hill , Kingston , Surrey , for im- provements in preserving potatoes and other vegetable sub- stances . Sealed 13th August . William ...
... mode of applying such engines to useful purposes . - Sealed 13th August . Downes Edwards , of Surbiton Hill , Kingston , Surrey , for im- provements in preserving potatoes and other vegetable sub- stances . Sealed 13th August . William ...
Seite 52
... mode of combining and applying machinery for the purpose of cutting and planing wood , so as to produce plane or moulded surfaces . Sealed 3rd August - 6 months for inrolment . - John Sanders and William Williams , of Bedford , iron ...
... mode of combining and applying machinery for the purpose of cutting and planing wood , so as to produce plane or moulded surfaces . Sealed 3rd August - 6 months for inrolment . - John Sanders and William Williams , of Bedford , iron ...
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acid aperture apparatus applied attached axle balance spring bars blast furnaces bobbin boiler burner carbonic carbonic acid carriages centre chamber claim coal cock coke colour combs combustion communication.-Sealed conj connecting rods construction crank cylinder December-6 months described diff engines escape wheel flax formed frame fuel furnace gases glass heat horizontal inches Inrolment Office invention iron January-6 months lace letters patent lever locomotive loom machine manganese manner manufacture materials means ments metal mode months for inrolment motion muriatic muriatic acid November-6 months opening oxygen pallet Paris passes patent Perpigna pieces pinion pipe piston placed plate primer produced provements puddling furnace purpose represented in Paris revolve roller Rolls Chapel Office scoria screw Sealed September-6 months shaft shewing shewn in fig shuttles slider sliding spring steam steam-engines sulphuric acid surface teeth tooth tube valve vertical vessel warp threads weft wire
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Seite 272 - Having thus described the nature of my invention, and the manner of performing the same, I would have it understood that I do not confine myself to the...
Seite 173 - ... less dense than that used for smelting iron. In the north of England, a charge of coal generally remained in the oven during 48 hours ; in London, only 36 hours ; he made lighter charges and coked them in 24 hours. He still found the calorific effect of 8 or 9 Ibs. of coke to be equal to that of 12 Ibs. of coal ; in his ovens, 20 cwt. of coal produced 14 cwt. of coke. Mr. Parkes inquired, which was the best method of annealing tubes for water gauges on boilers ? He generally used those prepared...
Seite 170 - ... and thus unfit for use. It is the same with the glass made for the flat bore tubes for thermometers, which are never annealed, because the smoke of the annealing furnace would render the interior of the bore unfit for the reception of the mercury. These tubes will only bear the heat of the blowpipe when they are made from a metal which has been produced under all the favourable circumstances before described. It is, therefore, to be inferred, that the most homogeneous and perfect flint glass...
Seite 310 - Rolls to alter that which the patentee has claimed or disclaimed in his specification, and compel him, by such enforced alteration, to say something which he never intended to say. There were very good reasons for relieving patentees from some of the risks and difficulties to which they were liable from errors in their specifications: and the statute 5 & 6 W, 4.
Seite 242 - When perfectly seasoned, and exposed some time to the light, it is of a rosy hue ; it has a strong aromatic odour, which it preserves as long as it is guarded from humidity. The perfect wood resists the succession of dryness and moisture for a great length of time, and this constitutes its great value for fencing.
Seite 322 - Birmingham, millwrights, for certain improvements in mills, for reducing grain and other substances to a pulverized state ; and in the apparatus for dressing or bolting pulverized substances.— Sealed 8th December.
Seite 236 - Selby line was opened with the engines of the former order, but the public and the Company being so much annoyed by hot cinders from their chimneys, burning whatever they lighted upon, and rapidly destroying the smoke-boxes themselves, three of those engines were altered, and succeeded to a considerable extent in diminishing the nuisance, whilst the engines performed better and with less fuel. That fact,. however, being questioned, and two engines of the improved construction having got to work,...
Seite 172 - Glass being sometimes deteriorated in the process of reheating, not only in color, but in its faculty of welding, by the sulphur existing in the coal or coke used in the furnace ; this is prevented by occasionally throwing about a quart of cold water on the fire ; the explosive vapour thus raised carries off the sulphureous gas. The process of annealing has the remarkable property of carrying off from the glass the reddish tint imparted to it by manganese, and in large masses, not only the reddish...
Seite 170 - Jths to £th of an inch. This plate is afterwards annealed, and in this state goes into the hands of the optician, who cuts and grinds it into the requisite form. When a glass furnace is about to be put out, whole pots of metal are sometimes suffered to remain in it, and cool gradually.
Seite 400 - Darker, and William Hill Darker, jun., both of Lambeth, engineers, and William Wood, of Wilton, carpet manufacturer, for certain improvements in looms for weaving.