US1553346A - Recording mechanism - Google Patents

Description

Sept. 15, 1925.

S1 B. WILLIAMS, JR

RECORDINGKMECHANI'SM Filed Oct. 26, 1922 50m Ue/ [fi M//Y//dms Jr.

Sept. 15, 1925. 1,553,346

` s. B. WILLIAMS, JR

RECOVRDING MECHANISM Filed oct. 2e. 1922' 2 sheets-sheet 2 mf f A Patented Sept. 15, 1925.

omen siarrs PATENT o1-*Fica Bumm. n. manuals, .'m, or saooxnnr, Naw ironic,A Assieme rov waaraan mme- TRIO COMPANY, INCORPORATED, 0F

YORK.

NEW your, N. g., A' Conrolwrrol or maw RECORDING MEOHANIBI.

Application tied October 28, 1922. Serial' No. 598,988.A

To all 'whom it ma" camera.'

Be it known that SAMUEL B. WILLIAMS, Jr., a citizen of the ll'nited States residin at Brooklyn, in the county of Kings an State of New York, have invented certain new and useful Im rovements in Recording Mechanismao which the following is a full, clear, concise, and exact description.

This invention relates recording and selecting mechanisms and more especially to such mechanisms when adapted to telephone exchange systems.

The object of the invention is an improved recording and selecting equipment compris in? a plurality ot counting devices euch ses' re ays operative in response to impulse series representing designations.

A feature of the invention relates to a series of counting relays' arranged :lor successive operation, a plurality ci said relays each releasingon operation of the succeed-a in saigd relays being operated remains operated until a plurality ol succeeding relays are actuated.

Such other features as are contemplated the present invention will become more b cllearly understood from the 'following' deright of t iis figure, there is also illustrated,

in schematic form, an additional register for recording another part oi the designation.

In telephone systems el' the'autoinatic and semi-automatic type, it is sometimes desirable to register on apparatus at the central oilice, the designation ot the wanted line or circuit. rlhis registration serves to govern the selective operations of switches to extend the required connection or tor controlling the operation 'of indicating mechanism relay and wherein a particular one oil pulse receiving1 and recordin which enable an operator toextend or complete the desired call. yIt is in a system of this general character that the recording mechanism embodying the features of ap licants invention is particularly useful. bviously, however, the invention is applicable in its broadest aspects tolany system wherein it is desired to establish a record by means of designation impulses.

In the system disclosed, the subscribers llnes, such as lines 100 and 101, extend to the central oce and terminate in a line switch 1.02, diagrammatically shown. Th

ing line to envoi a number of trunks, one oit which., truiih` 103, 10d, is illustrated leading to a drst selector switch 100. Switch 10h may be oit the same character as the j line switch l02 is adaptedto extend the calli line switch.l 1 0@ and has tor its function to n, extend .the insomnie trunks to outgoing.

trunks. Several of the outgoing trunks 107, 108, 109, M0, lli and i12 are illustrated.

bv'iously, theseoutgoing trunlrsymay lead to succeeding?,r selective switch devices where they are a ain selectively connected to other trunks an so on untill the connection is coin plated. a

Also, located at the central odios is an iinmechanism comprising an organisation o' relays and circuits, the functional which is to receive the impulses transmitted from the calling line and record the designations represent` ed bthese impulses. There me be any de sire' number oil recording mec anisrns loi,n serving a group of' subscribers particular one to he taken :ter one time depending upon its 'busy ,or ie condition. 1 selective switch 13.05 is providedior associatingp an idle one el the4 recording mechanisms with a particular trunlr lot, 104i to which the calling subscribers line has been connected. 1

'lhe switches 102, 106 and 105 may be ot the coordinate ty e suchas 'generally shown and 'described in etail'in the atent to S. iB. Williams, No.`1,til7,331, issue December 2. 19241. For an understandin ol one method et controlling switches of t iis character in a telephonesystem, reference is made to the circuit descriptions found in said patent to S.v B. lllillianis.A Furthermore, these switches may be. ot any well knownand apgli proved type, such as power driven selectors or selectors in which multi-contract relays are employed, for building up connections with means `for selecting and operating the ries of impulses transmitted over the line which are received by the counting relay set 126 shown in Fig. 1 and recorded successively on the respective registers 200 and 201 shown in Fig. 2. When the. calling subscriber initiates the call by removing is receiver from the switchhook, the line switch 102 operates to extend the line 100 to an idle trunk 103, 104. Moreover, the selecting switch 105 operates to associate the idle recording mechanism shown with the selected trunk 103, 104. In response to these operations, a circuit is closed from battery over conductor 147, resistance 117, left-hand l winding of im ulse relay 115, through concuit from batte tacts of the se ector switch 105, trunk conductor 104 through contacts ofy the line switch 102 over the subscribers line 100 and returning through the contacts of line switch 102, trunk conductor 103, contacts of the selector switch 105, through the balancing coil 118 to ground. Relay 115 operates and at its right contact closes a circuit for the slow-torelease relay 119. .Relay 119 at its left contact, applies ground potential to the holding conductoi` 146, for maintaining the various relays operated. Relay 119 also closes a cirthrough the resistance 116, right-hand win ing of relay 120 to ound at the right contact of relay 119. Relay 1.20, however, does not operateA in this circuit so long as relay 115 remains ener ized to maintain the following shunt at around the right-hand winding of re ay 120: battery, through the resistance 116, left contact of relay 115, left contact of relay 119 to ground.

When the subscriber operates his transmitter 150 to send two impulses constituting the first series, the impulse relay 115 deenergizes twice in succession. On the first deenergization of relay 115, the shunt circuit around relay 120 is opened and this relay immediately operates.l Relay 120 locks momentarily in a circuit from battery, through its left-hand winding and inner left contact, outer right back contact of relay 12'1 to ground over conductor 146. Relay 120 also closes a circuit from battery through the left-hand winding of rela 121 to ground at the inner right contact o relay 120. Relay 121 .operates and locks in a circuit from battery, through 4its. right-hand winding and inner right contact to the grounded conduc resistance of this relay 127 a circuit from battery through the winding of slow-to-release relay 122, upper back contact of relay 123, upper contact of relay 124, conductor 146 to ground at the left contact of relay 119. Relay 122 operates in this circuit and is held in the following circuit after relay 123 becomes energized: battery, through the winding of relay 122, outer right front contact of relay 121 to the grounded conductor 146.

When relay 121 is operated at the beginning 'of the first impulse of the series it closes a circuit from battery through its left-hand winding and left contact, conduc-A tor 148, outer right back contacts of count- `ing relays 136, 135, 134, 133, 132, 131, 130, 129, 128 and 127.in series, winding of relay 127, left back contact of relay 128, conductor 151, lowermost vcontact of relay 124, upper front contact of relay 123, upper back .contact of relay 124, to the grounded conductor 146. Relay 127, however, does not olperate in this circuit since itis shunted b t e direct path previously traced through the left-hand winding of relay 121 to ground at the inner rig'ht contact of relay 120. At the end of the first impulse, the line circuit is closed, relay 115 operates and replaces the shunt around relay 120 and this latter relay becomes deenergized. Relay 120 on deenergizing, opens the shunt around the counting relay 127 and relay-127 operates.

It should be noted at this point that the armatures and contactsof the counting relays 127 to 136, inclusive, are so designed that the inner right armature of each of .these relays makes-connection with`- its contact slightly in advance of the time that the outer ,right-hand armature disengages its back contact. By. this arrangement, the inner right-hand armature of relay 127, for example, closes its front contact before the olperatmg circuit of said relay is opened at t e outer right-hand armature and back contact.

Relay 127 locks in `a circuit traceable from battery, throughthe resistance 125, lnner right armature and contact and winding of relay 127, left back contact of relay 128, vconductor 151, lowermost) contact of relay'124, upper front contact of relay 123 upper` contact of relay 124 to the grounded conductor 146. y

When the relay 120 releases at the termination of the impulse and removes the shunt around the winding of relai 127, the is t rown in l ment with its contact and maintains thls enbatter? series, with the left-,hand winding of relay 121. The increase of resistance causesy a corresponding decrease in the current flow through the left-hand winding of relay 121.- Immediately following, the inner righthand armature. of relay 127 makes engagegae'ement for an interval before the outer right-hand armature disengages its back contact. During the interval mentioned, the left-hand winding of relayf121 is shunted by the holdin circuit above traced from ,througv resistance 125 and the vrindirg o relay 27 to round. The shunting e ect produces a sti l further reduction 1n the flow of current in the left-hand Winding of relay 121. At the end of 'the interval,

the outer right-hand armature and back cont-act of relay 127 open completely the circuit through the left-'hand winding of relay 121.

The windingslcf relay 121 are arranged differentially lwith respectto each other. The magnetic flux set up by the left-hand winding is sulicient to maintain the arma tures attracted in opposition to the magnetic flux set up by the right-hand winding, even when the flow of currentthrough said lefthand winding has been reduced as above described. However, a double reduction of current through the left-hand winding of relay 121 decreases the resultant flux to such an extent that when the circuit through the left-hand winding is completely open, the

relay due to its diierential character, re-

leases quickl Thus, at t e end of the first impulse, relay 127 is energized and locked depending lon the back contact of relay 128, relay 120 is deenergized and relay 121 is also released. The relays 119 and 122 have their circuits intermittently opened and closed during the series of impulses, but, being slow-to-release, they maintain their armatures attracted durino' these brief interruptions.

When the secondkand last impulse oi the series is received, relay 115 releases and relay 120 is again operated. Relay `120 com- Aletes the circuitabove described for the eit-handwinding of relay 121 and this latter relay attracts its armatures. Relay 121 in operating, recloses the circuit of relay 122 and also completes a path :from battery through its left-hand winding and leit contact, conductor 148, outer right back contacts of counting relays 186 down to 128 inclusive, outer right front contact of relay 127, windingl of relay 128, outer left contact of relay 129 tothe grounded conductor 151. Relay 128, however, does not operate at this time due to the shunt maintained at the inner right contact of relay 120. At the end of the second impulse, relay 120 becomes deenergized and removing the shunt permits the counting relay 128 to operate in series With the left-hand winding of relay 121.

Relay 128 locks in a circuit from, ...battery through the resistance 125 inner-right front contact of relay 128, windin of said relay, outer left back contactof re ay 129 to the grounded conductor 151. Relay' 128 at its eft back contact opens the circuit of relay 127 and this latter relay releases In the manner already described, relay 128 causes a double reduction in the How of current throu h the left-hand winding of relay 121 and a so o ns this circuit thereafter to permit the re ay 121 to release. y After theusual interval has expired following the\frst series of impulses, relay 122 having its circuit opened, retracts its armature. Relay 122 completes a circuit from ground over the conductor 146 through its contact, lower front contact of relay 123, inner llower contact of rela -124, conductor 144, left back contact of re ay 205, winding of, relay 204, to batte Relay 204 o crates and closes a circuit Iiiom battery, t rou! h its winding and right contact, conductor 1 5, winding of relay 124, lower contact of relay 123, contact of relay conductor 146. Relay 124 does not operate in this circuit since it is shunted by the original operating circuit for the relay 204. Relay 204 at its left contacts extends the conductors from the counting relays through to -the relays 206, 207, 208 and 209 oi' register Since the second countin relay 128 is operated, representing the rst digit of the designation, a circuit is completed :from

ground over the conducotor 151 as abovev traced through the. left 'front contact of relay 128, conductor 142, next to the outermost left contact of relay204, winding of register relay 208 to battery, Relay 208 operates and locks in a circuit from battery through its winding and inner left colhtact to ground over conductor 146. Relay 208 establishes a circuit from ground over conductor 146 through its 'outer left contact, winding of relay 205 to battery. Relay 205I` at its left' back contact opens the shunt around relay 124 and this latter relay operates in series with relay 204. Relay 124 at its lowermost contact opens the holding circuit oi:D relay 128 permitting this relay to release. Relay 124 at its upper contact, opens the holding circuit of relay 128. Relay 123 releases and in so doin opens the circuit of relays 124 and 204. impulse receiving mechanism and relay '204 becomes deenergized to disconnect the counting relay set 126 from the register rela s 200. The subscriber now manipulates his dial 150 to transmit a series of three impulsesv 122, to ground over' elay 124 releases, restoring the last impulse is transmitted, the relay 121 opfront contact of relay 128, winding of re ay 129, left back contact of r'ela 130, to ground over conductor 151. It wil be noted that relay .123 operates and locks on the first impulse of the second series in the manner already explained. Relay 129 in operatin closes a locking circuit to battery throug resistance 125, innerright contact of relay `129, left back contact ofrelay 130 to ground over conductor 151. Relay 129 at its outer left back contact opens the circuit of relay 128 and this latter relay deenerglzes.

After a suiiicient interval has ela sed following the second series of im u es, the slow relay 122 again releases an a circuit is closed from ground over conductor 146, contact ofrelay 122, lower contact of relay 123, inner lower contact of relay 124, conductor 144, left front, contact of relay 205, conductor 220, left back contact of relay 212, winding ofrela 213, to battery. Relay 213 operates and c oses a circuit from battery through its winding and right contact, conductor 145,`thence as above traced through the winding of rela 124 to the grounded conductor 146. Re ay 124 being shunted does not operate until the relay 212A attracts its armature at a later time. Relay 213 at its left contacts extends the control conductors from the counting relays 126 through to'the'relays 214, 215, 216 and 217 of t e second re ister 201.

Since t e third counting relay 129 is operated in response to the second series of impulses, a circuit is closed from the ground ed conductor 151 through the outer left front contact of relay 129, conductor 143, outermost left contact of rela 213, winding of the relay 214 to battery. elay 214 o crates and locks in a circuit from battery t rou hA its winding and inner left `contact to t grounded conductor 146. Still another circuit is established from 'ground over ,onductor 151, through the inner left contact of 7 relay 129, conductor 142, next to the outermost back contact of relay 213, winding of( 2 register relay 216 to battery. Relay 216 actuates and locks through its windin vand inner left contact to the grounded con uctor 146, Relay 212 is -now energized in the following circuit: battery, through the winding of relay 212, Vouter left contacts of relays 214 and 216 in parallel to the grounded conductor 146. Relay 212 locks through its right contact to the conductor 146. Relay 212 at its left back contact opens the shunt around relay 124 and relay 124 energizes in series with relay 213. Relay 124 opens the aua-sm lays 127, )128 and 129 have been operat circuit of relay 123 which in turn releases a 6B and opens the circuit of relays 124 and 213. Relay 213 disconnects the counting relay set 126 from the register relay 201.

In a lmanner identical to that described,

other series of impulses may be transmitted over the calling line representing other digitsr ofthe designation which are received and recorded upon succeeding registers similar to those shown in Fi 2. -A third re ister- A 203 is schematically illustrated in whic the relay 219 corresponds 'to relays 205 and 212 l of the iirsttwo registers. y

The varlable settings of these registers represent the diierent digits of the wanted designation and circuits controlled by said registers may be closed in a manner well known in the art for determining the selective operations of the switches. v For example, the register 200, 201, etc., may determine the selection of the magnets 113, 114,

etc., to choose the required tinks outgoing from the switch 106 as shown in the patent to S. B. Williams, o. 1,517,331, issued December 2, 1924.

When the last digit has been recorded on the register, a circuit maybe closed for the relays 210 and 218 in any desired Inan-A ner as illustrated in the said patent .to S. B. Williams. Relays 210 and 2,18 merel serve to apply groun ferent contacts of the re ister relays to determine theselection 0% n connection with the register 200, theselecting circuit leads from ground througl the contactof relay 210, right front-contact cfg relay 208, inner right back contact of rela 206, innermost left back contact of relay 207 to the selecting conductor 252.

For the register 201,'the selecting circuit 105 i may be traced from ground through the inner contact ofI relay 218, right front contact of relay 216, innermost right front contact of relay 214, next tothe inner left back contact-of relay 215 to the selecting conductor 253. In a similar manner, the selecting circuits for the remainin relay registers (not shown) are alsocomp eted. Inasmuch as the present invention relates more articularly to the arrangement and functions of the counting rela set shown in Fi 1, it has not been consi ered necessary to illustrate in detail the method of control which the several registers exercise over' the potential to the di 95 4 the circuit re y resented by the setting of `the registers.

switches. In fact, as already explained, any 12 ofthe well known methods wherein autooperations of the counting relays, a descripi 1 :,ssaaee tion will now be given of the apparatus in mitted, rela 121 on operating at the beresponse to series of impulses representing the remaining seven digits.

Assume that a series of four impulses is received. The o ration is the same as already described or the first three impulses.

U on receipt of the fourth and last impulse o the series, relay 121 operates andcloses a circuit from `battery through its left-hand Winding and left contact, conductor 148, thence through the outer right back contacts of relay 136 tol 130 inclusive, outer r1 ht front contact of relay 129, winding ofre ay 130, left back contact of relay 131 to ound over `conductor 151. At the end of t ,e 1mpulse when relay 120 releases, relay 130 opkcrates and locks throu hits inner right ttl lili

contact andalso causes t e release of relay 121. Relay 130 at its' 'left bac-k contact, opens the circuit of relay 129.

If a series of five impulses are trans- ,mittech the fiith impulse causes in the manner explained, the' operation of relay 121.. Relay 121 closes the circuit alcove traced through its left-hand Winding and contact, thence over conductor 1118 through the outer right contacts of relays 136 to 131, inclusive, outer right iront contact of relay 130, Winding of relay 131, left hack contact ot relay 133, conductor 151, to round. At the end oi the impulse when re ay 120 releases, relay 131 operates and in turn. causes the release o1 relay 121. Relay 131 becomes lo-clred in a circuit from battery through resistance 13'?, inner right contact and Winding ofrelay 131, left back contact of rela its lett hach contact opens. the circuit o1 relay 130 and this latter releases. n

lt a series ot sin impulses are transmitted, the relay 121 in energizing on the beginning of the sinth impulse completes a circuit from battery through its lett hand Wind-- in and lett contact, conductor 118, outer le t hack contacts oi relays 136 to 132 inclusive, outer right iront contact et rela 131, Winding of relay 132, lett hach contact 'over conductor 151. At the end of the ener ined.

ot relay 133, to the grounded conductor 151. At the end o1 the im ulse, relay 120 releases,

and removing the s' unt, permits relay 132 to operate in series with the lett winding ol relay 121. Relay 132 causes the deenergiaing o1 relay121 in the manner described. lt should loe noted, however, that relay 1.32 in operating does notcause the preceding' relay 131 to release as has heen the case up to this point. Thus, at the end ot a series ol six impulses both relays 131 and 132 are energized and locked. The locking circuit tor relay 132 may he traced from battery through the resistance 138, inner right con tact and winding of .relay 132, left back contact of. relay 13.3 to the grounded conductor 151.

When a .Series at .Saves impulses are impulse, relay\ 120 releases and permits relay 133 to operate in series with relay 121. Relay 133 causes the relay 121 to re ease and" also closes a locking circuit for itself as follows: battery, through resistance 138, inner right contact and windin of relay 133, outer left back'contact of re ay 134 to the ounded conductor 151. Relal 133 at its eft back contact o ns the ho ding circuit of rela 132. 'Relly 132 releases. lt will loe no ,that relay 131 still remains ien a series of eight impulses are transmitted, relay 121 in operating on the eighth impulse closes a circuit, similar to that already doscribed, for the counting relay 134s Relay 134 operates at the end o the eighth impulse and, closes a locking circuit for itselttrom loattery, through resistance 133, inner ri ht contact and winding ot relay 131, left ack contact oi? relay 135 to ground over conductor 151. Relay 134 at its outer lett hach contact savers the holding circuit ot relay 133. Relay 133 releases lout relays 131 and 134i remains energized.

Should the subscriber send a series o1 nine y impulses, the relay 121 in operatingon the 133, conductor 151 to ground. Relay 131 at.

ninth `hnpulse completes Nan analogous cir? cuit for the nent counting1 relay .135. lite llay 133 operates at the end ot the impulse and closes a holding circuit tor itself from battery through the resistance 133, inner `right contact and Winding out relay 135, left 'hach contact ot" relay 133 to ground over conductor 131. Hela 135 causes the release o1 relay 121 an also opens at its lett l hach contact, the holding circuit of relay 1311. Relay 131 deenergiaes and relays 131 and 135 remain locked.

ll a series et ten im ulses are transmitted, the relay 121 respondin to the last im ulse closes a cirmit from f attery throng its leithand Winding and contact,4 conductor 113, outer right contact of relay 136 outer ri ht :iront contact o1 relay 135, Winding of re ay 133 to ound over conductor 151. At the end oi e impulse` when relay 120 releases, relay 133 o rates and causes the deenergiaation of re ay 121 in the manner explained. Relay 136 closes a locking circuit from battery through the resistance 138, inner right contact and winding of relay 136 to the grounded conductor v151. Bela 133 at its left back contact opens the hol ing circuits of relays 185 and 131. Thus at the end of a Seriof teu impulses, rela 'j ble showing the counting relays operated, 4

136 remains ene and all relays are releasdd.ad

From inspection, it -will be observed that the several Arelays of the registers 200, 201, etc., are operated in different combinations when di'erent ones of the counting relay set 126 are energized. The following 'is a tatheconductors grounded, and the register relays `of the register 200 energized for the several series o impulses:

i Number impulsen Coun Islam l Conductors -grounded mid m ttig ian ssssssssas It may be noted that the `first register 200 is arranged to .automaticall erase the digit 1 in order to guard against the recording of -an accidental impulse. This is accom lished b making the ocking circuit of re ay 206 ependent upon the energization of either one or more of the relays 207, 208 andv 209. If a single impulse is sent, the relay 206 operates in response' thereto, AlAiu-tsince neither of the three relays is opera-ted and since relay 2.05 cannot lock the relay 206 releases immediately that 'the counting relays become deenergized the digit 0 as is the casein the other registers. Therefore an additional relay 211 is provided `for recording the digit 0 lor ten impulses.` Referring' to' the next -register 2 01, since the relay 212 once energized always remains energized until the equipment is released, this relay may therefore be used for 'recording/the digit 0. When ten impulses are transmitted, the relay 212 'responds thereto and locks lto the grounded conductor 146. In this case, none of the otherI for relays 214, 4215,- 216 or 217 is operated. Accordingly, a `circuit may be vtraced for the zero operating lead through back contacts of these four relays.

When the recording mechanism is no longer required, the circuit or relay 115 is opened as by. releasing the switch 105 and -precedin p means w en a particular one of said series of relays is o erated lfor maintaining such releasing a number of sai ductor 146 and all energized relays in the controlling and ne 'ster circuits'are released. What is claime is:

1. In combination, a series of relays arranged to operate successively in res' onse to a series ofimpulses, a plurality Io .said relays each having means for releasing the relay when it is operated, and

relay operate `until a plurality of Asucceeding relays have' been operated. 2. In combination, a series of counting rclays arranged to operate successively in respense to -a series of impulses, means for relays while impulses are being received, and means when .a particular one of said series of-relays is operated for maintainin said relay o erated until a plurality o succeeding 're ays are operated and released.

f 3. -In combinationa series of counting rclays arranged to operate one after another in response to a series of impulses, a number of said relays each having means for releasing the preceding relay when it is operated, means when a certain one of said series of relays is operated for maintaining said relay operated during the operation of a plurality of succeeding relays, and means for releasing said certain relay when a particular succeedimir relay is operated. l

4. In combination, a single series of counting relays arranged to be operated one after the other in response to a series of impulses, each of a certain number of said relays arranged to release upon thc termination of the impulse causing the energization of the next succeeding relay, and means when a `particular one of said series of relays is operated for maintaining su'ch relay operated until a plurality of succeeding relays have been operated and released.

.5. In combination, a series of counting rclays arranged to be operated in succession in response to a series of impulses, each of a number of said relays having means for releasing the preceding relay when it is operated, means for releasing a particular one of said series of relays only after a pluralit of succeeding relays have been operated, an a selection controlling device controlled by said relays.

6. In combination, a series of coiuiting relays arranged to operate successively, a differential relay responsive to series of impulses for causing the operation of said counting relays, each of a plurality of the counting relays having meansfor releasing the preceding relay when it is operated, and

means when a particular one ci the series of relays is o erated to maintain such relay means'when a particular one of the series operated until a plurality of succeeding re. yof relays is operated to maintain it operated lays havebeen operated, said differential reuntil a plurality of succeeding relays are. lay having two windings one of which is operated, and registers set4 by said series of 5 controlled by said counting relays. relays to lestablish registrations.

7 ln combination, a series 'of relays ar- `lln witness whereof, I hereunto subscribe ranged to operate successively in response my name this 24th day of October, A. D. to a'series of impulses, each of a plurality 1922.

of said relays having means for releasing 10 the preceding relay when it is` operated, SAMUEL B. WILLIAMS, JR.

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