components corresponding to the dot and dash signals is controlled by the time constants of these electrical signals, and in an analgous manner the selection of the miscellaneous character 235or characters embodying signal components having a time constant of different value from that of the dot or the dash may be controlled by such other time constant. In the Morse code there are four different electrical signals 240having different time constants, the signal for the letter “L” being a longer make of the circuit than that representing the dash, while the signal representing the cipher (“0”) has a longer time constant than that for the letter “L.” 245Hence in my instrument in order to control the selection of all language characters I provide selecting means having at least four functions or movements corresponding, respectively, to and controlled, respectively, by the 250four different time constants of the four electrical signal components into which all Morse characters may be resolved.
The analysis of the code characters of a telegraphic code into their electrical signal 255components and the mode of selecting and combining representative components or elements synthetically for the purpose of selecting the language character corresponding to each code character received have now been 260described. In order that a telegraphic message may be properly translated into corresponding language characters, words, and sentences, it is important also to consider the non-electrical components of the code characters265 that is, the breaks in the circuit between the dots, dashes, &c.-and to consider the relative values of these breaks between the electrical components of the code characters and of the breaks between successive code 270characters and longer breaks representing the spaces between words, &c. In order to analyze all of the components of a telegraphic message, I therefore provide controlling or selecting means governed by breaks of different 275values-that is, by breaks of different lengths–and the lengths or time constants of these breaks are employed to govern the selection of such space or other device as it may be necessary to operate in order properly to separate 280letters, words, &c. As a break in the circuit necessarily follows every make of the same, the selecting means controlled by said makes and breaks has two opposite or 285reciprocal functions, or rather two sets of opposite or reciprocal functions, one function being the control or selection of one or more 290devices governed by the makes of the circuit and by the time constants of such makes, and the other being the control or selection of one or more devices 295governed by the breaks in the circuit and by the time constants of such breaks, so that every function or operation necessary to the analysis of a telegraphic message and to the conversion of it into terms of language is governed by some one of these reciprocal and differential controlling or selecting functions of a translating-receiver operable by every combination of signals capable of being telegraphically transmitted to represent a message.300
Other features of my invention not herein before described, but which will be hereinafter referred to, are illustrated in the accompanying drawings, in which—
Figure 1 is a sectional plan of an analyzing305 mechanism of a receiving telegraph instrument embodying my invention, the section being taken in line 1 1, Fig. 2. Fig. 2 is a front elevation of said analyzing mechanism with parts broken away. Fig. 3 is an end elevation310 of said analyzing mechanism and a portion of the combining or adding mechanism as viewed from the motor end of the instrument with the motor and some other parts removed and parts broken away to show the parts clearly.315 Fig. 4 is a plan of the upper portion of the instrument, showing the group-selector, the combining or adding mechanism, and the type selecting devices, the lower portion of the analyzing mechanism and certain other parts being320 removed for the sake of clearness. Fig. 5 is an end elevation viewed from the left in Fig. 4 and slightly enlarged of the recording or printing mechanism and the spacing and other devices coöperative there with. Fig. 6325 is a detail enlarged to twice the natural size, illustrating in end elevation certain elements of the combining or adding mechanism in position for selecting a dot component. Fig. 7 is a detail on the same scale illustrating the330 same and other parts in plan in positions corresponding to those shown in Fig. 6. Figs. 8 and 9 are details corresponding to Figs. 6 and 7 and illustrate the positions of the parts for selecting a dash component. Figs. 10, 11,335 and 12 are respectively a left end, a front, and a right end elevation illustrating on the same enlarged scale the group-selector, the groups of character-selecting components, and the carrier for said components. Figs. 13340 and 14 are enlarged details of a feed device complementary to that which operates the component-carrier. Figs. 15 and 16 are enlarged details of the group-selector. Figs. 17 and 18 are respectively front and end elevations345 illustrating on the same enlarged scale the differential component-selectors and coupling means for bringing them selectively into action. Figs. 19, 20, and 21 are enlarged details of the component-selector representing350 the dot and one element of the coupling means associated there with. Figs. 22 and 23 are corresponding views of the complementary coupling member to that shown in Figs. 19 to 21, inclusive. Figs. 24 and 25 are similar355 details of the component-selector representing the dash. Fig. 26 is a diagrammatic view illustrating the various electrical elements of the instrument and the selecting and controlling means therefor.360
