. Scientific American Volume 78 Number 01 (January 1898) . ^-A<!A^ Fig. THE TELESCRIPTOR. ratchet drops between the teeth, making contact be-tween the lever, R, and the contact spring, S. Thiscloses the circuit of the printing magnet, so that thepaper is then lifted against the type wheel, and theletter is printed. There is in addition the usual ratchetarrangement for the feed of the paper, so that as soonas the latter drops again it is moved forward one relays of the instruments at either end are con-nected in series through the line, so that the instru. = hi! Fig. 1 DI
. Scientific American Volume 78 Number 01 (January 1898) . ^-A<!A^ Fig. THE TELESCRIPTOR. ratchet drops between the teeth, making contact be-tween the lever, R, and the contact spring, S. Thiscloses the circuit of the printing magnet, so that thepaper is then lifted against the type wheel, and theletter is printed. There is in addition the usual ratchetarrangement for the feed of the paper, so that as soonas the latter drops again it is moved forward one relays of the instruments at either end are con-nected in series through the line, so that the instru. = hi! Fig. 1 DIAGBAH OF CONNECTIONS. © 1898 SCIENTIFIC AMERICAN, INC. 8 ^titniitit %mmtm. [January r, 1898. ment at the receiving end acts in precisely the sameway as the one at the sending end. The synchronizingdevice remains to be explained, however. In order notto complicate Fig. 1, it has not been included in thatdiagram. The key, already mentioned, marked Syn-chro., is in reality merely a reversing key, and it is usedin connection with a polarized relay in each of the twoinstruments. The coil of this relay is connected inseries with the coil of the line current relay alreadymentioned, and when the current is flowing in its nor-mal direction the polarized relay is unaffected. When,however, the current is reversed, the tongue of the re-lay is attracted. The contacts of the relay are so con-nected to the local circuit and to contact rings on thecontact wheel that when the tongue of the relay is over,the local circuit is disconnected as soon as the wheelreaches a certain zero
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