Crystal Palace International Electric Exhibition 1881-82

97 carbon, illustrative of the experimental phases of the Edison carbon transmitter. Entertainment Court. 405.—Léon de Locht Labye, 49, Mont St. Martin, Liéget Belgium. Pantelephonic Posts and Telephonic Alarms, invented by M. Léon de Locht Labye, Liege. Telephonic correspondence will 'be carried on between two points established in the Crystal Palace. The Léon de Locht Labye (silver medal at the Paris Exhibition) is at once the most simple, the most sensitive, and most regular telephonic word-transmitter known. It has been adopted, by the Government of the Argentine Republic, and at Buenos Ayres is used by 600 subscribers. This apparatus suits all situations, allowing of conversation in loud or low voice, without the necessity of approaching near the instrument to speak. Telephonic auditions have a marvellous effect when applied to concert-rooms, theatres, or elsewhere. Sth. Nave fy Pompein House. 406 .—C. F. Racagni, Verona, Italy, and E. A. Guglielmini, Paris. Practical Application of the Telephone to every kind of Telegraphy. Telegraph Telephone applicable to armies in the field, to the navy, to railways, to mines, &c. Southern Gallery. 407 .—Schweizerische Telephon Gesellschaft, 7, Båren Gasse, Zurich, Switzerland. Telephone Stations, shown working. Western Gallery and Concert-Room Gallery. 408.—Gregory Skrivanoff, 32, RueVignon, Paris. Telephonic Station, with, battery enclosed at the base of the instrument, avoiding the use of batteries encumbered with liquid, and requiring constant attention. South Nave. 409.—Western Electric Company, New York, Chicago, Boston, and Indianapolis, U.S.A. Telephones: Blake Transmitters and Bell Hand Telephones. Telephonic Calling Apparatus : Magneto- Electric Generators, for hand, foot, or other power; and Polarised Bells, in combination and separate, worked by same; also Push Button Magneto-Electric Calls, with Polarised Bells, worked either by magneto or battery currents. Central Office Apparatus: Switch Boards of various forms; Duplicate, Williams’ Plag Switch, Gilliland, and Slide Switch, with Lightning Arrester, Calling Apparatus, &c. Subscribers Telephonic Sets—Combina- tions of Calling Apparatus, Telephones and Batteries, with and without desks. Telephonic Apparatus for private lines: Sets for use where two or more stations are connected by a single line; also Central Office Set for private exchange system; Switch Boai’d on Duplicate System, suitable for offices with. 500 lines and upwards; Pole Changers, for use at exchange offics, for ringing any description of bells. With L. Clark, hduirhead fy Co. Between Sheffield and Chinese Courts. Class VIII—Electric Lighting. 410 .—Clinton M. Ball, Troy, New York, U.S.A. Arc Lamp P^chite Gallery. 411.—Edmé Blouzon, 30, Rue Notre Dame de Nazareth, Pans Carbons for electric light. Eastern Gallery.