determine the selection of a letter, figure or other. language character corresponding to the code character received; to means for controlling various electric circuits and electrically240 controlled elements of the receiving instrument; and to certain other combinations of devices of which will be hereinafter described and claimed and are illustrated in the accompanying drawings, in 245which—
Figure 1 is a plan of an improved receiving telegraph instrument embodying means for effecting two translations of the transmitted signals, first into modified signals of 250a similar character, and second into characters of another system. Fig. 2 is an enlarged plan, partly in section, of the 255synthetic mechanism of such receiving instrument Fig. 3 is an end elevation of said synthetic, mechanism, looking from the left in Fig. 2. Fig. 4 is a transverse section of the 260same, the section being taken in the line A—A, Fig. 2, looking in the direction of the arrow. Fig. 5 is a transverse section of the same, the section being taken in the line Fig. 2, looking in the same direction. Fig 6 is a transverse section of the same, the section being taken in the line C—C, Fig. 2, through the printing mechanism and 265looking in the same direction. Fig 7 is an underside view of the selecting means controlling the selection of characters represented by the longest electrical signal elements in the Morse code. Fig 8 is a sectional detail of 270certain parts which will hereafter be described, the section being taken in the line D—D, Fig. 2, looking in the direction of the arrow. Fig. 9 is a detail, partly in section, of a portion of the printing mechanism and 275the parts associated therewith, the upper portion, of the synthetic mechanism being removed for clearness. Fig. 10 is a detail illustrating in longitudinal and elevation, various elements of the synthetic 280mechanism and the devices for controlling the movements thereof, the section being taken in the line E—E, Fig. 2, looking in the direction of the arrow. Fig. 11 is a detail of a portion of the escapement 285mechanism for imparting a step-by-step movement to the main selector, one movement for each impulse of a code character. Fig. 12 is an enlarged plan of the analytic mechanism. Fig. 13 is an. elevation of the same, looking 290from the left in Fig. 12. Fig. 14 is a sectional elevation of the same, looking. from the underside in Fig. 12. Fig. 15 is a detail illustrating the contacts representing the time-constants of complementary signal 295elements or components of different lengths. Fig. 16 a diagrammatic view illustrating the positions of the character-selecting components of the synthetic mechanism and the combinations corresponding to letters, 300figures and other language characters. Fig. 16 is a diagrammatic view illustrating the positions of the character-selecting components of the synthetic mechanism and the combinations corresponding to letters, figures and other language characters. Fig. 17 is a digrammatic view of a wireless telegraph system embodying the various elements of my present invention.
Similar characters designate like parts in all the figures of the drawings.305
Considering first my improved wireless telegraph system as a whole and referring.particularly to Fig. 17, any suitable means’ may be employed at the sending station for transmitting through a natural medium310 electrical impulses, vibrations or disturbances,and any suitable means responsive to such signals may be employed at the receiving station. In this figure 1 and 2 represent the usual antennæ or corresponding elements at315 the transmitting and receiving stations respectively. At the transmitting station there will be provided suitable means for producing and transmitting In the form of signals artificially formed electrical impulses, vibrations320 or disturbances, the devices shown being a transmitting key 3 connected in circuit with a source of energy or battery 4 and with an induction-coil 5 having the usual vibratory circuit-maker-and-breaker 6, a325 condenser 7 and the usual spark-gap 8 between a pair of spheres. At the receiving station there is employed a device responsive to electrical impulses, vibrations or disturbances transmitted through a natural medium,330 the device shown herein being the usual coherer 9 connected with the antenna 2 and with ground and controlling a local-circuit including a source of energy, usually a single cell 10, said circuit also having therein335 a relay magnet 11 which governs one or more other local circuits by means of which receiving apparatus proper is operated. The relay magnet 11 operates a switch 19 governing an electric circuit containing a340 source of energy or battery 13, this circuit including in the present case a controlling device such as the relay magnet 14. This relay magnet in turn governs the operation of a circuit-controller or switch 15, which in345 the present construction is adapted to control a pair of contacts, such as 16 and 17, and thus control the circuits of a pair of controlling devices, one of which is a decohering device, such as the tapper 18, and the other350 of which is a relay magnet 19 for controlling the operation of suitable means for translating electrical signals of one character into modified electrical signals, this modification being preferably effected, as before 355indicated, by converting interrupted electrical vibrations representing dots or dashes of a telegraphic code into continuous signals, that is, continuous dots and dashes. It with be noticed that the decohering device 18 and 360the relay magnet 19 for controlling the first translating means are in this construction connected in parallel branches of the same circuit, which circuit, contains a suitable source of energy or battery 20. The 365ar-
