Патент USA US2406046код для вставки
Aug. 20, 1946. B. syswlzzzY 1-2;406;1046 TELEGRAPH ,SIGNAL ENCIPHERING KEY TAPE PRODUCING DEVICE ' Fil'ed May 21, 1942 AAA //4 i - " Ill/I3 INVENTOR B. 5. SWEZEY av] . ATTORNEY 2,406,046 Patented Aug. 20, 1946 UNITED STATES ‘PATENT OFFICE ; 2,406,046 TELEGRAPH ‘SIGNAL ENCIPHERING KEY TAPE PRODUCING‘DEVICE . Bucdette S..Swezey, Floral‘Pa'rk; N. Y., assignor to Bell ‘Telephone Laboratories, Incorporated, New York, N ..Y.., a corporation of New York “Application May 21, 1942, Serial No. 443,908 ‘8 vClaims. (Cl. 1'78—22) 1 'T This invention‘relates to secret telegraph trans "mission systems. Moreparticularly, this inven . tion relates to the preparation of key tape foriuse ‘ in enciphering andcleciphering permutationcode ‘2 position prior to the ‘start of operationslandi varied from time to time‘as ‘desired by means of their respective‘ sliding switches I9,‘2I,‘“26, 34, and“. The rates of vibration of the di?erent relays are also changed automatically as the relays vibrate by changing the impedance of the path through It ‘isat times important that telegraph; signals the winding of each relay in response to‘ the op ‘transmitted ‘over telegraph lines be enciphere'd eration of other'relays. From time to time,'at to: prevent the disclosure of con?dential messages random intervals, relay No.L 6 operates. Depend to ‘unauthorized parties. One‘ system which is probably most satisfactorily used at presentin 10 ent upon the positions‘of the right-hand arma tures associated with'relays I to 5, magnets-1 to enciphering Baudot code telegraph ‘signals in * telegraph signals. volves‘ the use of what is known in the artas a I I" will be energized or deenergized and the cor tapes automatically. Preferably, the system of producing tapes should be. completely automatic The circuit will now be described in detail. It will be assumed that all of the armatures associ ‘atedfwithwelays I to 5' are‘ in the position indi cated. A circuit may be traced from battery I3 through resistance» I4, contact I5, winding of re lay I, contacti36 of ‘relay 2 which shunts resist ance I1, variable resistance» I 8 and ‘sliding contact I9 to'ground 51 which energizes the winding‘ of relay l. Contact‘ H5 is closed and contact '35 is responding perforating punches'not shown, will key tape. Frequently more than one key tape be selected or remain unselected in a well-known willrb-e employed in enciphering and deciphering. .As thenumber of teletypewrlter stations is in 15 manner. ‘When the armature of relay 6 engages its left-hand contact, punching magnets“ will be > creased and as the need for secrecy becomes more energized and theitape‘will be punched in posi important it is necessary to provide a larger num tions where? the punches have been‘selected. ber of key tapes. It is desirableto produce such and should not require any manual manipulation. It is an object of this invention to‘ produce ran dom‘ key tapes entirely automatically. by means of comparatively inexpensiveequipment. lReference is made to D, B, Perry Patent 2365,120, December 2,.1941 which discloses an arrangement wherein a group of polar relays; one corresponding .to .each .signal element of the .Baudot codesignals to'be enciphered are arranged .to vlbratepeach at audi?erentspeed. Periodical .lysaikey is operated manually. lDepen'dentupon ‘theposition assumed by the ‘various relay- arma "tures ‘associatedrwith the' relays‘ at the moment when‘ the‘key is operated‘, positions corresponding to the relays in a key tape will be punched‘or re main .unpunched. The invention herein'repre 1 sents an improvement over the arrangement dis— closed in Patent ‘2,265,120 in that the manual op eration of a. key is unnecessary. The circuit is Jentirely automatic. The invention may be better understood from opened. A circuit may also be traced'from ‘battery ‘ l3 through‘ resistance f4, contact‘ 4 I, winding ofv re lay '2, variable resistance 20, sliding contact 2| and resistance 22 to-ground51, energizing wind -ing1 2. Contacts-4| an‘d‘35 are opened. Contact '42‘ is closed. A circuit maybe traced from battery I3 through ‘ resistance I4, contact 43,lwinding of‘ relay 3, vari able inductance 23 and sliding contact 24 to 'ground 51 energizing relay 3. Contacts “and 31 are closed. Contacts ~43-and 38 are opened. lA'circuit' may also be traced from battery I3 through‘resistance I4,‘contact 45, winding of re the following description when read with refer ence to the single figure of the drawing which ‘lay 4, variable resistance 25, sliding contact 26, . shows an entirely automatic arrangement for denser 28 connected in parallel with resistance’ 21, 'toground 51 energizing the winding of relay 4. controlling the perforation of a key tape by‘ a group of vibrating relays. IRefer' now to the drawing. Five vibrating re lays, numbered I to‘ 5, control the operation of 'contact 38,‘which shunts resistance 21 and con Contacts “and” are closed and contact 45 vis opened. A circuit may be traced from battery I3 through ?vepunch-selecting vmagnets, numbered 1 to II. wresistance I4, contact 41, winding of relay 5, in Vibrating relay 6 controls the operation of punch- . ing magnet I2. The armatures of relays I to 5 are all vibrated at di?erent rates of speed. The rates at which the relays vibrate are manually ductance 29 and contact 35, which shunts induct ance 30, to ground 51. Contact 48 is closed and contacts 41 and 40 are open. A circuit may be traced from battery I3 through resistance I4, contact 49, winding of relay 6, con adjustable by means of rheostats I8, 2 I, 25, and 33 and variable inductance 23 which may be set in 55 tact 40, which shunts resistance 3|, inductance 2,406,046 3 32, variable resistance 33 and sliding contact 34 to ground 51 energizing relay 6. Contact 50 is closed and contact 49 is opened. When the right-hand armatures of relays I to 6, inclusive, engage their respective left-hand contacts I6, 42, 44, 46, 48, and 50 parallel circuits 4 arrangement of circuit elements is shown as be ing established by the left-hand armatures o1 relays I to 8, the actual arrangement employed may be any desired combination of apparatus units. Also where a single armature or a make or a break contact is shown, the arrangement are established from battery I3 through resist may provide for more than one armature and for ance I4, through the respective left-hand contacts front and back contacts each controlling the dis of relays I to B, through resistances 5| to 56, position of additional circuit elements which through the windings of punch-selecting magnets 10 may be momentarily connected into or removed 'I to II to ground 58. Each of the right-hand from the circuits, to further complicate the er armatures of relays I to 5 which is in engagement ratio vibrating action of the relays I to 5 for I with its left-hand contact when the armature of setting up a random selection, and to cause relay relay 6 engages its left-hand contact 50 will close 6 to vibrate in an erratic manner to cause per its respective circuit through its punch-selecting 15 foratins of the tape by magnet I2 in a random magnet and when magnet I2 is energized the cor manner. responding selected punches will be operated to The manner in which the punched tape is ad punch the tape in corresponding positions in a vanced after it has been punched is well known well-known manner. in the art. The opening of the right-hand contacts asso 20 What is claimed is: ciated with the right-hand armatures of relays 1. In a mechanism applicable for enciphering I to 6 deenergize the windings of relays I to II. multielement permutation code telegraph signals, The armatures are restored to reengage their a group or vibrating relays for determining the right-hand contacts. Then the operation is re individual marking and spacing elements in the peated. _ 25 multielement cipher code and a single vibrating Attention is particularly directed to the fact relay for automatically controlling the register that as the left-hand armatures of relays l to i ing of the elements determined by said group. are attracted and released they vary the ener 2. A mechanism in accordance with claim 1 in gizing paths of other relays of the group. ‘This which the rate of vibration of the vibrating re changes the rate of vibration of the armatures 30 lays is varied in response to the vibration of oi’ the various relays. In the case of relay I, the said relays. opening of contact 35 removes a shunt from 3. In a mechanism applicable for enciphering around inductance 30. This will effect a mo multielement permutation code telegraph signals, mentary change in the rate at which the arma a vibrating relay. automatic means for varying ture of relay 5 vibrates. The operation of relay 35 the frequency of operation of said relay, and 2, by opening contact 36, inserts resistance I‘! in series with the winding of relay I. This ef fects a change in the speed of operation of re lay I. The operation oi relay 3, by opening con tact 38, removes a. short circuit from around re sistance 21 and condenser 28 which are connected in parallel. This effects a change in the rate of vibration of the armature of relay 4. By the means dependent upon the operation of said re lay for energizing a punch magnet. 4. In a mechanism applicable for enciphering multielement permutation code telegraph sig nals, a vibrating relay and a tape punching mag net controlled by said relay. 5. In a mechanism applicable for enciphering multielement permutation code telegraph sig closing of contact 31 of relay 3, resistance 22 is nals, a relay conditioned to vibrate automat short-circuited momentarily causing a variation 45 ically to determine the nature of a particular in the current of relay 2 and an irregularity in signal element in the cipher code, and means con its rate of vibration. The operation of relay 4, nected to said relay for automatically varying by closing contact 39, connects a short circuit the period of vibration of said relay. around inductance 32. This effects a change in 6. In a mechanism applicable for enciphering the rate of vibration of the armature of relay Ii. . The operation of relay 5, by opening contact 40, removes a short circuit around resistance SI. This likewise e?’ects the rate of operation of re lay 6. Sliding contacts I9, 2|, 24, 26, and 34 may multielement permutation code telegraph signals, a plurality of vibrating relays for determining the character of signal elements in an encipher ing code, and means responsive to the operation of certain of said relays for varying the frequency of vibration of others of said relays. be adjusted manually to vary the amount of re sistance or inductance of the apparatus unit with 7. .An electromechanical mechanism for pro which each is associated. This will provide an ducing enciphering key tape for permutation code additional adjustment in the rate of vibration of telegraph signals comp-rising a plurality of re each of the associated relays. lays having means for mutually varying their rate It will be realized that proper adjustments may 60 of operation automatically, and means connected be required so that magnets ‘I to I2 will be fast to each of said relays for controlling an indi enough to follow their respective relays I to 6 vidual signal element recording device. and fully perform their operations. Also relay 8. In a mechanism for producing enciphering I5 and magnet I2 should be slow enough to allow key tape for permutation code telegraph signals, changes in the punch selections to take place a plurality of relays arranged to vibrate at dif (where such changes are being called for by the ferent rates, each relative to the other, and means vibrating relays) between successive operations of the punching magnet I2. It is pointed out, that even though a de?nite responsive to the operation of said relays for varying the rate of vibration of said relays. BURDE'I'I‘E S. SWEZEY.