US1232087A - Automatic-telephone register-sender. - Google Patents

Description

F. N. REEVES & A. E. ELUNDELL. AUTOMATIC TELEPHONE REGISTER SENDER.

APPLICATION FILED JAN. 19. I916. 1,232,087. Patented July 3,1917.

//7ve/7f0/ s: Fran/r N Reeves. Alfie/7 E. Luflde/A F. N. REEVES & A. E. LUNDELL.

AUTOMATIC TELEPHONE REGISTER SENDER.

APPIJCATION FILED JAN- 19. I916.

Patented July 3, 1917.

2 SHEETS-SHEET 2.

FRAN K N REEVES, OF NEWARK, NEW JERSEY, AND ALBEN E. LUN DELL, OF NEW YORK,

N. Y., ASSIGNORS TO WESTERN ELECTRIC N. Y., A CORPORATION OF NEW YORK.

COMPANY, INCORPORATED, OF NEW YORK,

AUTOMATIC-TELEPHON E REGISTER-SENDER.

Specification of Letters Patent.

Patented July a, 119i 7.

Application filed January 19, 1916. Serial No. 72,908.

To all whom it may concern:

Be it known that we, FRANK N.'Rnnvns and ALBEN E. LUNDELL, citizens of the United States, residing at Newark, in the county of Essex and State of New Jersey, and at New York, in the county of Bronx and State of New York, respectively, have invented certain new and useful Improvements in Automatic-Telephone Register- Senders, of which the following is a full, clear, concise, and exact description.

This invention relates to automatic telephone systems in which registers are provided at the central office which are arranged to take up the designation or number of the wanted subscribers line and thereafter govern the operation of the cen-' tral ofiice sending device, by means of which the switches used in establishing a talking connection between two subscribers are controlled. A register device of the general character of thatherein disclosed is shown in Figures 3 and 5 of patent to Frank R. McBerty, No. 1,125,579. This patent also shows the manner in which registering devices of this character control the operation of setting up a connection.

In the present invention, sequence switch structures, similar to that shown in patent to Reynolds and Baldwin, N 0. 1,127,808, are used both as registers and as a circuit-controlling sequence switch, as this structure permits a single cam or disk to control a greater number of circuits than the sequence switch shown in the patent first referred to.

The present invention contemplates the application of a registering device of this character to a full automatlc telephone system, that is, a telephone system in which the establishment of the connection is controlled by means of an interrupter or sending device at the subscribers station.

The principal object of this invention is the provision of a power-driven registering device of the sequence switch type above referred to, wherein the register is moved to its set position step by step under the control of the impulses from a sending device which may be located ata subscri-b'ers station. y

In the drawing, Fig. 1 diagrammatically indicates a subscribers line with a line finder switch associated therewith. In this figure is also shown a sender trunk finder switch by means of which the the' sending device controlled thereby are temporarily associated with the line finder.

In Fig. 2 is diagrammatically illustrated a plurality of registering devices and the portion of the contacts controlled thereby.

In the drawing, 1 represents the substation and 2 the line finder switch associated with the subscribers line. 3 is the sender finder switch, by means of which the send ing apparatus is connected to a trunk which is joined to the subscribers line by the finder switch 2. This trunk will be extended in the usual manner through a series of switches by means of which a connection is established. The invention may be used in a system employing any desired kind of switches, but the circuits herein disclosed were especially designed for a system employing switches similar to that shown in the patent to Craft and Reynolds, No. 1,123,696.

It is believed the invention will be readily understood from a description of the operation of setting up the registers, and as the other features form no part of the present invention, the

of the registering devices.

We will now assume that the subscriber at 1 has initiated a call, the line finder switch 2 has picked up the subscribers line, and that the sender cord finder 3 is associated with the connecting circuit of the finder switch 2. At this time the sequence switch contact 6 at the line finder will be closed and the sequence switch of the sender trunk finder will be in position 1. Each of the sequence switch structures shown in the drawings will-be provided with a master contact, which appears immediately above its power magnet. These master contacts are open only at the positions of their respective switches indicated by the numerals adjacent thereto. Thus, these numerals represent the only positions in which the sequence switches can stop. All the other sequence switch contacts which appear on the drawings are open except at the positions indicated by the numerals adjacent thereto. With the apparatus as above noted, a circuit will extend from grounded battery through relays 1 and 5 in series, the left brush of trunk finder switch 3, sequence switch contact 6 (21}- to operators register and 5t disclosed in this application so 10), the lower brush of the line finder switch 2 and cut-off relay 7 to ground. All three of the relays will be operated. The energization of relay 4 will complete a circuit from battery through sequence switch motor magnet 8, sequence contact 9 (1) 'and the front contact of relay 4 to ground. This causes the sequence switch to move to position 3 under the control of its master contact 10. A circuit now extends from battery through the left winding of stepping relay 11, innermost armature of relay 5, middle brush of the trunk finder, lower sequence switch contact 12, middle line finder brush, over the lower conductor of the subscribers line and through the substation apparatus thereat, back over the upper conductor of the subscribers line, through the upper line finder brush, lower sequence contact 13, right brush of the sender trunk finder, right armature of relay 5 and back to battery through the right winding of relay 11. This circuit will be completed simultaneously with the circuit for the magnet 8 of the sequence switch so the left contact of relay 11 will open before contact 14 closes, and no effective circuit will be established for relay 15 through the armature of relay 11 until the first interruption of the circuit at the subscribers sending device.

The subscriber now operates his sending device or dial, which causes a series of interruptions in the subscribers line circuit. This will cause the relay 11 to be repeatedly deenergized and energized. With the first deenergization of the relay 11, an original energizing circuit is completed from ground through the armature and front contact of relay 4:, sequence switch contact 14 (3), armature and back contact of relay 11, right winding of relay 15, register control contact 16 (N), sequence contact 17 (3), back contact and armature of relay 18 to battery and ground. Relay15 pulls up and corn pletes a locking circuit for itself through its inner armature and battery to ground. It will be noted that prior to its energization, a circuit for relay 15 extended from battery through the left winding of said relay, both upper contacts of sequence switch spring 23 (N), sequenceswitchcontact 26 (3) and resistance 10 to'ground. However, the left relay winding is short-circuited by a branch circuit extending through inner armature and back contact of the relay, contact 24 (3), right contact 23- (N), contact 26 (3) and resistance 10, to ground. Thus the circuit through the left relay winding, is ineffective until this shunt circuit is broken at the back contact of the relay. Relay 15 also completes a circuit from ground through its outermost armature and contact, contact 19 (3), contact 20 (N) and register motor mag net 21 to battery and ground. The register moves out of normal or position N and is carried into position 0 by means of its master contact 22. The deenergization of relay 11 is but momentary, and upon its energization the holding circuit through the right winding, of relay 15 is interrupted. Its armatures are held up, however, by the circuit through its left winding until said circuit is broken at contact 23 (N), when the register moves to position 0. The purpose of the holding circuit through the left winding of relay 15 (and as will later appear, the holding circuit through the left winding of relay 18) is to insure the movement of the register into its next position, or at least until it is under the control of its master contact 22.

On the next denergization of relay 11, an original energizing circuit is completed for relay 18 from ground through the armature of relay 4, sequence switch contact 14 (3), armature and back contact of relay 11 as before, and thence through the right winding of relay 18, sequence switch contact 23 (0), sequence switch contact 24 (3), back contact and innermost armature of relay 15 to battery and ground. Relay 18 is energized and locks up through its front contact and innermost armature. It is also locked up by a circuit through its left windspring 16 (0), contact 26 (3) and resistance 40 to ground. As in the case of relay 15, the flow of current in this circuit is not effective until the short circuit extending through inner armature and back contact of the relay, contact 17 (3), upper right contact 16 (0), contact 26 (3), resistance 40 to ground, is broken. The right armature of relay 18 completes-a. circuit from ground through sequence switch contact 23 (3), register contact 20 (0), motor magnet 21 and battery to ground. The register thereupon moves to position 1. Upon the energization of relay 11 and-the opening of contacts 16 (0), when the register moves to position 1, relay 18 drops off. Upon the next denergization of relay 11, the previously traced circuit for right winding of relay 15 is again completed, extending through register contact 20, but this time closed in position 1 instead of position N as before.-

It will be noted that upon successive deenergizations of the-relay 11, the original energizing circuits are alternately established for relays 15 and 18, the circuit of each relay being completedthrough the inner armature and back contact of the other relay. The purpose of this is to insure that only one relay will be energized by a single impulse from relay 11. As each of these relays, upon its energization, locks up through its inner armature and front contact, it must necessarily keep battery removed from the circuit of the other relay, even though the register reached its next position and thus completed the circuit of ing, and upper contacts of sequence switch 1 tion of the left armature of relay 11.

In short, this action is as follows: The circuits of the. relays 15 and 18 are alternately closed at'successive positions of the register and the energizing circuit for the register power magnet at any position of the register is closed through contacts of the relay whose circuit is closed by the register in that position. When the register moves to its next position, this energizing circuit is broken and a circuit is established for the other relay 15 or 18, so it will be energized by the next impulse, and in its new position the register provides a circuit for its power magnet to a front contact of that relay whose circuit is now closed at the register contacts.

The cycle of'operations above described will be repeated with successive energizations and denergizations of relay 11; Upon the termination of the series of impulses, a circuit willv extend from battery through the left Winding oflthe sluggish relay 27, sequence switch contact 28 (3), register contact 29 (0 to 9), register contacts 30,31, 32 '(N), conductor 33, front contact and armature of relay 11, sequence switch contact 14 (3), contact and armature of relay 4 to ground. This circuit was completed with each energization of relay 11, but as relay 27 is made sluggish to pull up by the closed circuit normally maintained about its right winding, it did not pull up during the brief intervals its circuit was closed while the impulses were being sent, and its circuit was not closed until the register took its first step and thereby closed upper contact 29. It does, however, pull up on the termination of the series of impulses and closes a circuit from battery through sequence switch motor magnet 8, and the sequence switch moves to position 4 under the control of its master contact 10. As the sequence switch moves out of position 3, the

circuit for relay 27 is interrupted at contact 28 (3) and the relay falls off. .The circuit of this relay will not be again completed until upper contact 30 of the next register is closed in position 0 by the first of the next series of impulses. Upon the next series of impulses being sent from the substation, corresponding circuits will be established, but as the sequence switch is now in position 4, the circuits will serve to operate the sequence register control magnet 34. Upon the termination of the series, the relay 27 will be again energized, this time by a circuit from battery through the left winding to said relay, sequence switch contact 28 (4), register contact 30 contacts 31 and 32 (N), conductor '33, front contact and right armature of relay 11, sequence switch contact 14 (4), and contact "nection, will be readily lays,

(O to 9), register-f and armature of relay 4 to ground. This cally illustrated on the drawing and the circuits therefor have been in the main omitted.

The register contacts, which appear above conductor 33 in'Fig. 2, may be wired to a set of counting relays in a manner similar to that shown on Fig. 50f the above mentioned patent to McBerty, and by reference to said patent the manner in which the reg isters, herein diagrammatically represented, control the operation of a'series of matic switches to establish a talking conunderstood. What is claimed is:

1. In a telephone system, a call storing register, a pair of relays for governing the movement of 'said register, a power magnet for causing the movement of said register, energizing circuits for said. magnet extending through contacts of said relays respectively, and means for alternately operating said relays to complete said circuits.

2. In a telephone system, a call storing register having a lurality of set positions,

a magnet for causing the movement of said register, contacts, means controlled by said opening and closing said contacts, a pair of relays, circuits for said magnet each extending through contacts of one of said reand circuits for said relays respectively, alternately closed at said register contacts.

3. In a telephone system, a call storing register having a plurality of'set positions, contacts governed by said register variously closed at said positions, a magnet for causing the movement of said register, a plurality of relays, circuits for said magnet each extending through contacts of a different one of said relays, and circuits for said relays closed in a definite order at said register contacts as said register moves to suecessive positions.

4. In a telephone system, a pair of relays,

a sender controlling register having a plurality of set positions controlled thereby,

an impulse circuit, means responsive to imautowill drive the sequence switch to position 5.

said relays for causing said register to move a from one of its positions to the next.

5. In a telephone system, a call storing register, a pair of relays for governing the movement of said register, a continuously operating power device, a clutch magnet for joining said register to said power device and energizing circuits for said magnet exmagnet for joining said register to said power member to cause the movement of said register, contacts, means controlled by said register in its movement for alternately opening and closing said contacts, a pair of relays, circuits for said magnet each extending through contacts of one of said relays, and circuits for said relays, respectively, alternately closed at said register contacts.

7. In a telephone system, a register having a plurality of set positions, contacts variously closed at said positions, a continuously operating power member, a magnet for joining said register to said power member to cause the movement of said register, a pair of relays, circuits for said magnet eachv extending through contacts of one of said relays, and circuits for said relays, one of said relay circuits being opened and the other closed at said register contacts each time said register moves from one position to the next.

8. In a telephone system, a pair of relays, a sender controlling register having a plurality of set positions controlled thereby, an impulse circuit, means responsive to impulses in said circuit for alternately ener gizing said relays, locking circuits for said relays, respectively, matures attracted, means responsive to the energization of either one of said relays for causing said register to move from one of its positions to the next, and contacts for said register operated in such movement to open the locking circuit of the energized relay.

9. In a telephone system, a plurality of relays, a call storing register having a plurality of set positions, power means for moving said register to said positions controlled by said relays; an impulse circuit, means responsive to impulses insaid circuit for alternately energizing said relays, locking circuits for said relays, respectively, for maintaining their armatures attracted, means responsive to the energization of any one of said relays for causing said register to move from one of its positions to the next, and contacts of said register operated in such movement to open the locking circuit of the relay then energized and prepare a locking circuit for another of said relays. v

' 10. In a telephone system, a sender controlling register having a plurality of set positions, a pair of relays for governing the movement of said register to successive positions, an impulse circuit having a pair of for holding their arbranches in which are included windings of said relays, respectively, means actuated upon the energization of one of said relays for causing said register to move from one of its positions to the next, and means controlled by said register in such movement for interrupting the circuit of the relay then energized and preparing a path for the energization of the other said relay.

11. In a telephone system, a sender controlling register having a plurality of set positions, contacts for said register variously closed at its several positions, a magnet for causing the movement of said register to its 'sucessive positions, a pair of relays, a circuit for said magnet having branches arranged to be closed at contacts of saidrelays respectively, an impulse circuit having a pair of branches in which are included windings of said relays respectively, and means operated upon the energization of one of said relays in response to an impulse in said circuit for energizing said magnet to move the register from one position to the next, said contacts being actuated in such movement to interrupt the circuit of the relay then energized and prepare a circuit for the other sai relay.

12. In a telephone system, a sender controlling register having a plurality of set positions, a continuously moving power member, a magnet for joining said register to said power member, circuits for said magnet, a pair of relays for controlling said circuits to cause the movement of said register to successive positions, an impulse circuit having a pair of branches in which are included windings of said relays respectively, means actuated upon the energization of either one of said relays for closing a circuit for said magnet to cause said register to move from one of its positions to the next, and means controlled by said register in such movement for interrupting the circuit of the relay then energized and preparing a path for the other said relay.

13. In a telephone system, a sender contrOlling register having a plurality of set positions, contacts for said register variously closed at its several positions, a continuously moving power member, a magnet for joining said register to said power member to cause the movement of said register to its successive positions, a pair of relays, a circuit for said magnet having branches arranged to be closed at contacts of said relays respectively, a pair of branches in each of which is included a winding of one of said relays respectively, and means operated upon the energization of oneof said relays in response to an impulse in said circuit for energizing saidmagnet to move the register from one position to the next, said register contacts being actuated in such movement to interan impulse circuit having rupt the circuit of the relay then energized and-to relay.

14:. In a'telephone system, a plurality of sender controlling registers, means for trans-- mitti'ng'. impulses to one of said reglsters to cause it to move step by step through a plurality of positions, a sequence switch for extending said controlling circuits to another of said registers, a relay, a circuit for said sequence switch arranged to be closed at a front contact of said relay, means for momentarily closing the circuit of said relay with each impulse of a series subsequent to the first impulse, and means for transmit- ;ting a prolonged impulse to said relay at I a plurafity of positions, a sequence switch the termination of the series of impulses,

whereby fit will be operated to cause said sequence -switch to move into a posltion to .close the control circuits to the next register.

15. In a t lephone system, a plurality of sender "confrolling registers, means for transmittinga series of impulses to one of saidregisters-for' causing it to move through prepare a circuit for the other said for extending said controlling circuits .to another of said registers, a, relay, a pair of windings for said relay, a circuit for'said' sequence switch arranged to be closed at a front contact of said relay, meansv for momentarily closing acircuit through one winding of said relay with each impulseoi a series subsequent to the firstimpulse a normally closed circuit through the ot er winding of said relay for preventing it from responding to a momentary closure of its circuit, means fo transmitting a pro such movement for opening the circuit of said relay. Y

In witness whereof, we hereunto subscribe our names this 17th day of- January, A.ID., 19 1a- FRANK N. REEVES.

' ALBEN E. LUNDELL,

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