公开(公告)号：AT31124B

公开(公告)日：1907-12-27

申请号：AT31124D

申请日：1902-01-13

Applicant: BLONDEL ANDRE

Inventor： BLONDEL ANDRE

公开(公告)号：AT23617B

公开(公告)日：1906-03-26

申请号：AT23617D

申请日：1905-01-16

Applicant: BLONDEL ANDRE

Inventor： BLONDEL ANDRE

公开(公告)号：AT22866B

公开(公告)日：1906-01-25

申请号：AT22866D

申请日：1903-03-09

Applicant: BLONDEL ANDRE

Inventor： BLONDEL ANDRE

公开(公告)号：AT22855B

公开(公告)日：1906-01-25

申请号：AT22855D

申请日：1903-01-23

Applicant: BLONDEL ANDRE

Inventor： BLONDEL ANDRE

公开(公告)号：CH32087A

公开(公告)日：1905-06-15

申请号：CH32087D

申请日：1904-09-05

Applicant: BLONDEL ANDRE

Inventor： BLONDEL ANDRE

公开(公告)号：CH27442A

公开(公告)日：1904-01-15

申请号：CH27442D

申请日：1902-10-20

Applicant: BLONDEL ANDRE

Inventor： BLONDEL ANDRE

公开(公告)号：GB190215527A

公开(公告)日：1903-07-11

申请号：GB190215527D

申请日：1902-07-11

Applicant: BLONDEL ANDRE

Inventor： BLONDEL ANDRE

Abstract: 15,527. Blondel, A. July 11. Converting alternating and direct currents; wireless telegraphy and telephony. - Relates to a system of wireless telegraphy and telephony by Hertzian waves, in which the transmitters radiate a continuous flow of waves or groups of waves controlled by a microphonic device, which, by varying the impedance or electromotive force, impresses on the amplitude or frequency of the waves a rhythmic character more or less similar to that of the human voice. The receiver acts on a telephone receiver, with or without the aid of a local oscillating circuit. Various arrangements for generating electric waves are described. In Fig. 4, the current in the secondary of a transformer u excited by an alternator l is rectified by cathodic valves y or other unidirectional devices. The rectified current is converted into a highfrequency current by a Tesla transformer with a spark-gap a, condenser, and coils c and f, the coil f being in the aerial conductor g. Fig. 2 is an arrangement in which the primary of a Tesla transformer is excited by a battery e, the secondary f of the transformer being in series with the aerial conductor g. d, d denote inductive or non-inductive impedances, and k, i make-and-break keys for signaling, either of which may be used. A transformer, adapted for use with polyphase currents, is described, three or more cathodic valves being used to rectify the alternating currents. A microphonic transmitter is inserted in one of the oscillating circuits. One form with a flame is shown at Fig. 7. Vibrations produced at the mouthpiece p cause variations of pressure in the gas in the chamber o and this causes the flame n to rise and fall. The rise and fall of the flame varies the resistance of the spark gap l, m, thus dividing the high-frequency waves into groups corresponding to the vibrations at p. In another form, the flame forms one of the electrodes of the spark-gap. Instead of a direct microphone, a Duddell speaking-arc may be used to act on the transformer.

公开(公告)号：GB190311193A

公开(公告)日：1903-06-25

申请号：GB190311193D

申请日：1903-05-16

Applicant: BLONDEL ANDRE

Inventor： BLONDEL ANDRE

Abstract: 11,193. Blondel, A. May 16. Telegraphs.-In wireless telegraphy, the radiator or aerial conductor consists of a horizontal wire network or the like A, B supported by towers P at a considerable height from the ground, and connected by one or more vertical wires C; D to the transmitting or receiving apparatus, which, in the example shown, consists of a Tesla transformer T. Reference is made to Specification No. 21,909, A.D. 1900.

公开(公告)号：GB190306060A

公开(公告)日：1903-06-04

申请号：GB190306060D

申请日：1903-03-16

Applicant: BLONDEL ANDRE

Inventor： BLONDEL ANDRE

Abstract: 6060. Blondel, A. April 8, A.D. 1902, [date applied for under Patents Act, A.D. 1901]. Arc lamps, electrodes for. A rod a of carbon mixed with a large proportion of light-producing salts, is coated with a layer b one or two millimetres thick of pure carbon, or carbon containing only a small proportion of such salts, in order to reduce the production of. scoria. The rod may also contain a thin core d of potassium, sodium, or other alkaline tartrates, carbonates, borates, or silicates, to steady the arc. The mixture for the rod may contain fifty per cent. of calcium fluoride or phosphate, or from ten to ninety per cent. of other magnesium, barium, sodium, potassium, thorium, cµsium, and like salts ; it may be formed by passage through a plate, dried, baked, and then coated with pure carbon in a press similar to a lead coating press. Or the rod and coating may be extruded together from concentric openings. Or they may be made separately, and afterwards put together. When no core is used, the rod may be impregnated with alkaline salts after being baked.

公开(公告)号：GB189919445A

公开(公告)日：1900-08-25

申请号：GB189919445D

申请日：1899-09-27

Applicant: BLONDEL ANDRE ,  WEISSMANN GUSTAVE ,  WYDTS ALFRED

Inventor： BLONDEL ANDRE ,  WEISSMANN GUSTAVE ,  WYDTS ALFRED