. Scientific American Volume 78 Number 01 (January 1898) . ers until the key depressed. AVhen writing, each letter keyused is to be held down until the machinestops, when it can be released, and the nextletter required can be depressed. After themessage is ended the Synchro. key shouldbe depressed and held down until the machinestops before the transmitting lever is released,in order to cut off the line current. If this isomitted, a white disk marked Please on the front of the apparatus, to remindthe oi)erator of his omission. It is intended toreplace this arrangement by
. Scientific American Volume 78 Number 01 (January 1898) . ers until the key depressed. AVhen writing, each letter keyused is to be held down until the machinestops, when it can be released, and the nextletter required can be depressed. After themessage is ended the Synchro. key shouldbe depressed and held down until the machinestops before the transmitting lever is released,in order to cut off the line current. If this isomitted, a white disk marked Please on the front of the apparatus, to remindthe oi)erator of his omission. It is intended toreplace this arrangement by a locking mechan-ism, locking the transmitting lever until theSynchro. key is depressed. If an earth return be used, only one line wireis necessary, and of course the mechanism forthe actual printing and for controlling theclockwork is worked through a relay, so that <amore powerful local battery caii be used. Thetype wheel is worked by clockwork, which re-quires winding periodically, but the escapementof the clock is controlled by an electromagnetic. ^-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
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectdevice, booksubjecttb
