Phosphorescent Substances

1881 Scientific American  
Ititufifit 1\tutritau. 53 RECENT INVENTIONS. I These substances, when properly prepared and exposed to I circumstances in which the insulated conductor can be laid, Mr. Eugene Wessells, of Peekskill, N. Y., has patented an any strong ligbt for a short time, exhibit phosphorescence for !dessrs. Siemens' plan wi}1 undoubtedly be the most economi improved automatic mechanism for feeding animals. It is some time after removing to a dark place. A calcium sul-cal, as it will save the carriage of the
more » ... he carriage of the weight of the accumu· designed to be operated by a heavy weight, and its move· phide has been prepared that, after a short exposure to sun-lators. But there are many cases in which the insulated ments are controlled by a clock. light, will continue to give out light for ten hours in the conductor is impracticable, and in WhICh M. Faure's plan An improved chamber vessel has been patented by Mr. dark. When, by keeping in the dark, one of these substances may prove useful. Whether it be the electric railway or the Arthur Bird. of Jeffersonville, N. Y. The object of the has ceased to give out light, it may be made to give a series lead-driven tramcar, there is one feature of peculiar scientific improvement is to provide means for tightly sealing vessels of fresh exhibitions by heating it first with the hand, then interest belonging to electro-dynamic propulsion of road used in sickrooms, hospitals, and other places, so as to pre-over a water bath, and finally on a hot stone plate. carriages. Whatever work is done by gravity on the car· vent escape of gases and odors. The invention consists in A remarkable phosphorescence is devBloped in quinia and riage going down hill will be laid up in store ready to assist swinging covers fitted for being opened and closed by hand some of its salts by heat. Spread quinia or its sulphate on a afterward in drawing the carriage up the hill, provided elec or by movement of the seat. sheet of paper, and spread the paper on a plate of hot metal tric accumulators be used, whether at a fixed driving Mr. Henry Eitenmiiller, of Butler, Pa. , has patented an in a dark room-a strong phosphorescent light develops at station or in the carriage itself." improved beehive of handsome appearance, which affords the edges and spreads to the center. A similar display is • , • , _ ready means for the inspection of its interior, and an easy observed in sprinkling finely powdered fluorspar {calcium Electrotype of the Brain. and convenient removal of the upper comb boxes and the fluoride) over a plate of hot metal in thEl dark. A brain, preserved and metallized by tbe galvanoplastic improved comb racks in the brood chambers, means being Boracic acid fused and allowed to cool breaks into small method, was lately presAnted to the French Academy of also provided whereby the honey made in the hive shall be pieces, and along the cracks a phosphorescent light appears, Medicine, on behalf of Dr. Ore, of Bordeaux. Dr. Ore's made more secure against marauding bees. which is sometimes strong enough to be visible even in day· method (which preserves the brain entire) is briefly as fol-Mr. Samuel B Knapp, of Osceola, Iowa, has patented a light. Potassium sulphate fused with cream-of-tartar shows lows : The brain having been so arranged that circumvoludevice for attracting insects, which drop into a poisoned the same phenomenon. tions are well separate, by introducing cotton wicks into the liquid in the apparatu�, and are thus destroyed. PHOSPHORUS. fissures, and so that the preserving liquid may penetrate the An improved billiard table on which a game can be played Phosphureted oil is the b e st means of exhibiting the ventricles, is kept about a month in alcohol at 90°, 80 as to with two or more halls, has been patented by Mr. Edmond i luminous properties of phosphorus. A small piece of dry acquire good consistency; the wicks are then taken out. J. Sause, of Brooklyn, N. Y. The invention consists in a phosphorus, about the size of a pea, is placed in a test tube The brain is now plunged for ten minutes in an alcoholic billiard table provided with the ordinary cushioned end rails, with a little pure olive oil. The test tube is held in the solution of nitrate of silver (100 gr. per liter of alcohol), and and with a central cushion attached to a stud projecting watel' bath until the oil becomes heated and the pho s phorus carefully drained in air. Next, it is transferred to a case in
doi:10.1038/scientificamerican07231881-53a fatcat:dupsyljrancnxds2plm4xsjk3y