US1721058A - Henry joseph binnott - Google Patents

Description

July 16, 1929. H. J. SINNOTT RELAY DISTRIBUTOR Filed July 16, 1927 "mum? :osm'n Patented July 16, 1929. I

UNITED STATES 1,721,058 PATENT OFFICE.

airmen, or ran nocnwn'; mrw roux, ASSIGNOR' To THE coulmnomr. cum comm, or new max, 1:. Y.

my nrs'rnmuroia My invention pertains to telegraph systems and particularly relates to'high speed telegraph or cable systems in which the signals arerecorded upon a tape or other medium. 7 4

' Received signals which are recorded in the operation of high speedtelegraph or. cable circuits are usually transcribed before de livery inme'ssage form. The speed at which thesignals are recorded often exceeds the speed of the transcribing operator thereby confusing the operator, causing the recording tape to pile up and tangle, and resulting sults' by employing) v transcription.

usually'in' mutilation of the tape and loss of messages. I I

The principal object of my invention comprises providing a system of circuits and apparatus whereby. signals comprising mes sages to berecorded-may be distributed to two or more recording instruments in order that-several transcribing operators may be employedto divide the work and thus greatly facilitate and insure the handling of the traflic. ,1

I accomplish the above noted desirable rea novel' relay system in effect interposed etween the initial telegraph or cable receiving relay and a plu rality of recording instruments whereby groups of signals comprising complete mes jsages are distributed between the several recording instruments to divide the work of f In the drawing which accompanies and forms a part of this specification I have illustrated diagrammatically one complete em- 'bodiment of my idea as applied tocable telegraphy utilizing two direct writers-erre cording instruments. I v

Referring now to the drawing, cable 1 is shown with an earth connection 2 and with the initial receiving or cable relay 3 connected thereto as usual. Relay 3 is adapted to operate the local corrector relays 5 and 6 through the medium of'battery 4. The forward .or' marking 'contactsof the relays 5 and 6 are connected to the windingsof the application a led luly 16,

the other terminal. of the windin 1927. Serial no; 200,197.

deemed therefore to need no detailed description; Mynovel-relay system is essentially interposed between the relay system justdescribed and the recording apparatus as will now be pointed .out. The relay v18 is polarized and provided with tongues 19 and 20, carried on a common armatureshaft 17 but insulated therefrom and from each other. Tongue 19 is associated through one of its contacts withone pole of battery 23,.the other pole of which is connected to a pole of opposite polarity of a similar battery 24 and through. condenser 22 and bridged resistance 21 with one terminal of the windingof relay 18 and also through resistance 27 withrelay. The midpoint of the relay winding is connected to the back contact of relay 5. The remaining terminal of Battery 24 is connecttd to the other contact associated with tongue 19,. which is connected through res tardation coil "10 with the back contact of relay 6. This system ofcircuits and apparatus constitutes the well known Gulstad" of the I generative-relay 12and to the remaining oontact associated with tongue 20. The remain-' ing terminals of-the coils of writers 14 and 15. are connected through conductor 16 with the tongue 20 of relay 18. This results in the direct writers being connected in series relation to operating impulses received through the contacts of relays 11 and 12 from battery 13 and as tongue 20 is moved to make contact alternatelywith its contacts, directwri-ters 14 and 15' will be alternately regenerative relays 11 and 12. Thewindings usual system of circuits and apparatus empl'eged to. receive,- correct and regenerate ca shortcircuited and rendered thereby inoperare further connected through the common ative.'

Theoperation lows: v

Relay '18 iscontrolledby the incomingsignals re ived by relay 3 and remains deenergizedfihnd with its tongu return conductor 26 and" throughbatte' 9 with the tonguesofbothrelays 5 an 6. The organization thus far described is the of my relaysystem is as 01.?

. e at rest on 8 Sign recording Pllrposes and is h con act with which it last made contact 0 so long as a continuous sequence or group of incoming signals is being received, because armatures 7 and 8 of relays 6 and 5 are during such time in constant motion, and the circuit through tongue 19 of relay 18 is therefore not closed for the predeter-, mined period of time necessary to charge condenser 22 to cause the operation of-re lay 18. If however, the sending operator provides a pause of predetermined time duration between messages both armatures 7 and 8 will come to rest on their respective back contacts to close the circuit from split battery 23-24: through tongue 19 for a time interval equal to that provided by the sending operator and sufiicient to charge condenser 22 to initiate the vibration of relay 18, and thus to alternatel short circuit direct writers 14 and 15. of course distributes a complete message to first one and then the other of the direct writers and so divides the work for the transcribing operators. The direct writers are operated preferably in series, with one or the other alternately short circuited, in order that a poor contact between tongue 20 and either of its contacts will not result in the loss of a message.

Condenser 22 is provided with a non-inductive shunt resistance 21 to prevent a gradual accumulation of charge which would in time be sufiicient to reduce the effective capacity of the condenser and cause relay 18 to operate ontransmitting pauses of less than the predetermined time interval provided for the purpose.

I have found that for cable telegraphy a ause equal .to the time interval represeggted y the passage through the transmitter of the length of tape between six center holes, when provided between messages, operates my relay system very effectively in conjunction with a condenser of approximately 40 microfarads shunted with a 5,000 ohm noninductive resistance, and a variable resist-' ance of 300 ohms with which to refine the speed adjustment. Obviously the timing of the vibrations of relay 18 is determin by adjustment ofv resistance 27 and condenser 22 to attain the speed of operation uired. The speed should be such that mature 20 moves from the contact upon which it. is at rest while the,relay is de-energized to the other contact in the time interval selected and interposed between messages. In other words in the time interval that the tongues 7 and 8 are at rest on their back tard the current to permit condenser 22 to discharge on isolated single letter'-words suchasEorT.

While I have shown and described but one embodiment of my device it should be clearly understood that I may vary the dea plurality of receiving relays, a pair 0 ink writers, vibrating relay means, means for suppressing operation of said vibrating relay means only while signals are being received, saidvibrating relay means determining which one of said ink writers shall record the received si al.

2. In a relay distri utor, means for re-= ceiving telegraph signals, a pair of signal recording means and means operable b the cessation of said signals for a pr etermined time interval for distributing said signals in groups to said recordin means in alternation, both of said recording means being associated with said receiving means.

3. In a'relay distributor, means for receiving signals, a first and second means for recording said signals and means operable only by the cessation of said signals for a predetermined-period of time for determining whether said first or said second recording means shall record said si als, said first and second recording means ing both associated with said receiving means. v

4. In a relay distributor, means for receiving signals, a plurality of means for recording said signals and means operable only by the cessation of said signals for a predetermined period for determining which one of said plurality of signal recording means shall record said signals, allof said recording means being associated with said receiver.

5. 1m a relay distributor, means-for receiving signals, a plurality of means for recording said signals, and means operable only by the cessation of said signals for a predetermined time interval for rendering first one and then another of said recording means inoperative, all of said recording means being associated with said receiver.

6. A signal receiving system comprisimligg,

a plurality of receiving relays, a pair of writers, 'vibrating relay means, means for suppressing operation of said vibrating relay means only while signals are being re,

celved, said vibrating relay means determining which of said ink writers shall record the received signal said vibrating relay means being connected to said ink writers in such manner as to preventrloss of nal record in event of failure'of said v1 brating relliafi contacts. r

. NR-Y JOSEPH SINNOTT.

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