Crystal Palace International Electric Exhibition 1881-82

94 377 .—C. Mourlon et Cie., 61, Rue de Ruysbreeck, Bruxelles. Batteries on the Leclanché system. Gold Medal at the Brussels Exhibition, 1880. Bronze Medal at the International Exhibition Paris, 1881. . Eastern Gallery. 378 .—Gregory Skrivanoff, 32, Rue Vignon, Paris. SkrivanofFs New Electric Dry Battery, capable of every kind of use. This new battery requires no care. It is applicable to military telegraphy, to telephones, to railway signals, to domestic uses, &c. South Nave.- 379.—Léon Somzée, 2)7, Rue Royale, Brussels, Belgium. 1. Voltaic Pile of great intensity and of very small size, princi- pally employed where a constant current and long working are required. 2. Secondary Electric or Galvanic Batteries and Regulator for the distribution of the energy accumulated. These secondary batteries contain more energy than those of Faure or Planté; they are composed of divided material, such as metallic grains for the positive electrode and small charcoal or charcoal dust for the negative electrode; both being mixed with, oxide of lead. Chemical reaction is the same as in Faure batteries, only our system gives more energy per weight of material. Another battery is composed of a special form of electrode, they being both of lead; but our surface is far greater than those of the now known system, and less in weight. The system is com- pleted by the use of a new condensor, by means of which the distribution, by tension or quantities, is easily obtained, and by which one or more batteries may be set in action or out of action, without interfering with the energy needed. Southern Gallery. Class III. Magneto-Electric and Dynamo-Electric Machines. 380 .—M. A. Cange, 11, Rue St. Florentin, Paris. Dynamo- Electro Machines, with continuous or alternative currents; con- structed with. Gance’s electro-magnetic bobbins. Corridor. 381 .—Charles Dion, Hotel Burgundy, 8, Rue Dauphot, Paris. Two new Magnetic Bobbins, made of a straight strip of metal turned on its edge into a circular or elliptic helix, so as to be instantly applied upon any kind of revolving armature or round or more or less elongated core. Eastern Gallery. 382 .—Prof. T. A. Edison, care of E. H. Johnson, Esq., 57, Holbora Viaduct. Steam Dynamo; Dynamo Machine, made on a new principle; small Dynamo Machine. Ground Floor. 383 .—A. Gérard,, Paris. (See Lorrain, in English Section.) 384 .—Messes. Gravier, Kuksz, Luedtke,, et G-rether, 25, Rue Leszno, Varsovie, Russie. A set of eight Dynamo-electric- machines, each of 4-h.orse power. Two distributors with double commutators, each of 32 directions. West Corridor. 385 .—White House Mills, Hoosac, New York. Agents, Jas. 8.Mackie & Sons, 194, Broadway, New York. Arago Disc Dynamo, for electric lighting, electro-plating, and telegraphy. West Corridor.