London Journal of Arts, Sciences and Manufacturers, and Repertory of Patent Inventions, Tom 17William Newton, Charles Frederick Partington W. Newton, 1841 |
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Strona 13
... glass chimney , as usual . c , is the pipe for the passage of the pure oxygen from the reservoir to the flame , —it is passed through the side of the burner by an air - tight joint , and extends upwards within the burner , as shewn in ...
... glass chimney , as usual . c , is the pipe for the passage of the pure oxygen from the reservoir to the flame , —it is passed through the side of the burner by an air - tight joint , and extends upwards within the burner , as shewn in ...
Strona 23
... glass friction stud c , c , and beneath the upper arms of bent lever hooks d , d , and e , e . If the thread a , should become broken , the upper arm of the lever hook d , which is supported by the thread , will immediately fall into ...
... glass friction stud c , c , and beneath the upper arms of bent lever hooks d , d , and e , e . If the thread a , should become broken , the upper arm of the lever hook d , which is supported by the thread , will immediately fall into ...
Strona 27
... glass or other receptacle , at such times as it may be required for use at the refreshment table . In the accompanying drawing , ( see Plate IV . , ) fig . 1 , represents a perspective view of the first - mentioned appa- ratus , for ...
... glass or other receptacle , at such times as it may be required for use at the refreshment table . In the accompanying drawing , ( see Plate IV . , ) fig . 1 , represents a perspective view of the first - mentioned appa- ratus , for ...
Strona 31
... glass , china , or stone ware . It is by the spout that the liquid is introduced and emitted ; by pressing on the lever b , the liquid is allowed to enter or to escape . This lever has internally two teeth , similar to those of a pinion ...
... glass , china , or stone ware . It is by the spout that the liquid is introduced and emitted ; by pressing on the lever b , the liquid is allowed to enter or to escape . This lever has internally two teeth , similar to those of a pinion ...
Strona 40
... glass is varied until the object is reflected on the fixed glass , and thence to the eye . March 10 , 1840 . The PRESIDENT in the Chair . " A mode of bending Discs of Silvered Plate Glass into concave or convex Mirrors , by means of the ...
... glass is varied until the object is reflected on the fixed glass , and thence to the eye . March 10 , 1840 . The PRESIDENT in the Chair . " A mode of bending Discs of Silvered Plate Glass into concave or convex Mirrors , by means of the ...
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Popularne fragmenty
Strona 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...
Strona 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...
Strona 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...
Strona 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.
Strona 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.
Strona 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.
Strona 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,...
Strona 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...
Strona 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.
Strona 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.