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Updated: June 17, 2025
On the other hand, Leyden jars with tinfoil coatings showed considerable absorption, and this he thought due to want of close contact between the foil and the glass. To test this he suggested that mercury coatings be tried. Mr. Kapp considered the loss of power in condensers due to two causes: first, that due to the charge soaking in; and second, to imperfect elasticity of the dielectric.
Prescott, surrounded by his retorts, crucibles, burettes, and condensers, received us much more graciously than I had had any reason to anticipate. He was a man in the late forties, his face covered with a thick beard, and his eyes, which seemed a little weak, were helped out with glasses almost as scholarly as ours.
It cannot be from the chemical action of the salt water upon the iron, for the flues and other parts of the boiler beneath the water suffer very little from corrosion, and in steam vessels provided with Hall's condensers, which supply the boiler with fresh water, not much increased durability of the boiler has been experienced.
"The great point about my motor, however, is that she's run by a fluid somewhat similar to gasolene another of the distillation products of petroleum, in fact which, having been exploded, passes into my new and absolutely unique catalytic condensers, where it is returned to its original molecular structure and run back into the reservoir."
Canvas hose let in the air necessary to make the stoves draw; other hose served for escape-pipes for the steam. Two condensers were fixed in the two rooms; they gathered the vapour instead of letting it escape, and were emptied twice a week; sometimes they contained several bushels of ice.
James Swinburne read a paper on alternate current condensers. It is, he said, generally assumed that there is no difficulty in making commercial condensers for high pressure alternating currents. The first difficulty is insulation, for the dielectric must be very thin, else the volume of the condenser is too great.
The Condensers. In these condensers the leaves of the sheet metal are embedded in composition. The aerial condenser will cost you $2.00 and the others 75 cents each. The Aerial Ammeter.
The filament terminal takes a current of 7.5 volts and this is supplied by another secondary coil of the transformer. This rectifier tube delivers a direct current of 20 watts at 350 volts. The price is $7.50. The Filter Condensers. These condensers are used in connection with the reactance coil to smooth out the pulsating direct current after it has passed through the rectifier tube.
White is fitting compound engines with outside condensers to boats as small as 21 ft. long, and we give a view of a pair of compound engines of a new design, which Messrs. Belliss are making for the boats of this class. The cylinders are 4 in. and 7 in. in diameter by 5 in. stroke. The general arrangement is well shown in the engraving.
To-day the vast plant which once produced the most exquisite and delicate ware in the world is now producing the less lovely but more serviceable crucibles, condensers and retorts necessary for the distillation of the powerful acid used in modern high explosives. Previous to the war, the Central Empire had a monopoly on this market.
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