US1037053A - Telephone-call register. - Google Patents

Description

c. v. RIGHBY. TELEPHONE CALL REGISTER. APPLICATION FILED APB..17. 1911.

Patented Aug; 27, 1912.

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M l W U. V. RIGHEY. TELEPHONE CALL REGISTER. APELIOATION nLnnAPn. 17. 1911.

Patented Aug. 27, 1912.

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TELEPHONE-CALL REGISTER.

Specification of Letters Patent.

Application filed April 17, 1911.

1,037,053. Patented Aug. 27, 1912.

Serial No. 621,587.

disks are changed to give multiples of complete rotations of the units disk. This portion of the mechanism is not in itself a part of my invention, except as it forms an element of the combination. The so-called Veeder meter is illustrated To an whom it may concern:

Be it known that I, CHARLES V. R-IormY, a citizen of the United States, residing at Washington, in the District of Columbia, have invented eertain new and useful Improvements in Telephone-Call Registers, of

succeeding which the following is a specification, refor convenience. The lever m is actuated erence being had therem to the accompanyby a lever L moved in one direction by elecing drawing.

My invention relates to telephone call registers and is in the nature of an improvement on the invention described in m prior applications Serial No. 554,557, filed April 9, 1910, Serial No. 579,496, filed August 29, 1910, and Serial No. 595,285, filed December 2, 1910.

The object of the present invention is to simplify the apparatus and circuits and increase their efiiciency in certain particulars which will be pointed out.

There are two principal features in this invention, a meter and a lockout. function of the meter is to register the numer of originating calls at a substation which have been answered by the called subscriber, and the function of the lockout is to enable the subscriber to place his telephone in or out of operative condition for originating calls, at will. The meter comprises a counting device worked by a pair of magnets acting upon actuating means in opposite directions, whereby the use of the retractile spring, as well operation, is avoided. The meter magnets are included in branch wires forming tromagnet E and in the other direction by electromagnet E. he magnet E has'its windings shunted by a condenser C, in order to remove its impedance from the talking circuit. Adjacent to the meter are two sets of springs S and S; The springs S are acted upon by the lever L, and the springs S are acted upon by the twin lever L, each of these levers carrying an armature A, and both armatures being controlled by the same electromagnets.

The mechanism is inclosedin a casing B which has a lid not shown, but supposed to cover the exposed face in Fig. 1. This lid may be fitted with a lock or seal so that it can be opened only by authorized persons.

eferring now to Fig. 3, 1-2 represent the line wires entering the substation from the central oflice X, which is equipped with the usual line jacks, plugs, cords and other apparatus common in centralized battery exchanges, and as shown in my prior applications above referred to. station the talking circuit is common battery circuit illustrated in my said applications, and commonly known as the ell substation circuit. The receiver R, transmitter T, switch hook H, condenser C and coil I are the same as those cornmonly employed. They will therefore not be described in detail.

A special pair of contacts 20 and 21 are provided in the instrument, closed by the switch hook when th on. noi'elty in the instrument equipment.

The circuits of the meter and lockout will be best understood by stating the operation in detail as follows: In originating a all, the subscriber closes his .line circuit at the switch hook by the standard special current such as ringin current transmitted from the central 0 ce by the operator after the conpossession of the subscriber.

My invention is illustrated in the accompanying drawings in which-- Figure l is a side view of the mechanism, and Fig. 2 is a sectional View on the line 2-2 of Fig. 1. Fig. 3 is a diagram of the substation circuits.

eferring to the drawings, and especially to igs. land 2, M is the meter, in thel'orm 'o a numerical'counter of a well known type, in which the units disk is changed at each forward stroke of the lever 77?), and

way of: line wire 1, 3, z, 4, s, s, 8, s .9 4, H, 5, T, 6, E, 13 and back over line wire 2. This energizes the line relay at the central oflice and the operator gets the number and completes the connection in the usual manner. When the called subscriber answers the operator sends ring- At the sub- 1 These constitute the only feature of I when the lockout is oif, is not actuated upon operation of V usual.

F llowing path: central station X, line wire i s, 8*, 8, s s 4:", H, 20, 21, 22, 5 ,3 10, 12, E, 9 and back over line wire 2 to X. The energization o magnet E actuates both levers L an The lever L, being thus restored to its normal position as shown, opens the circuit last traced, at s-s* and 5 -19 whereupon the magnet E becomes de'nergized which permits lever L to be restored to its normal position as shown. In order that the circuit through magnet will not be opened at s' is before the lever iiig current over the line which ener rizes magnet E over the same circuit already traced. Owing to the relatively high resistance of the ringing circuit including the ringer Q, and the magnet E, the positive.

the magnet E by ringing current is not interfered with. The energization of E pulls over both levers L and-L, the lever L operating the meter M to register the call. When the ringing current is taken off, L is held in its actuating position by a spring or latch m. lVhen the subscribcris czlled from the central station, the lock-out being 05 as shown in Fig. 3, the circuit of actuating magnet E justmentioned, is opened at contacts 8 8 during the L is prevented from being actuthe lever ated by saidmagnet previous to L by the plug p shown in Figs. and 2.

L has had time-to reach its normalposition,

continuance of each ringing period by the Having thus described my invention,what attraction of the lever L by the magnet E. 1 claim and desire to secure by Letters Patent of the United States is:

1. In a telephone exchange system, a lockout device comprising the following instrumentalitiesf a close or Therefore the magnet E is not energized. by the ringing current at this time and the meter which is connected to the lever switch adapted to open the circuit for calling central and for conversation, an to maintain the same closed or open when operated, a key adapted to open and the answering of the called subscriber during a ringing period, and upon the cessation of ringing current, talking may proceed as close'said switch as determined 'When it is'desired to change over to a by the subscriber, anda'n electromagnet also lockout the cam K is turned by means of a suitable'key, which permits the spring 5 to retract, opening contact between 3 and s and closing the pair s s and the meter M thrown out of gear either by removing the crank pin m or by means actuated by the turning of cam K to disable the operating mechanism within the meter. Assuming that the above change has been made, a person at this substation cannot originate a call as the line circuit before traced is now open at contacts s-s which circuit, however, is closed to ringing current through condenser C, and contacts s s. The operator in calling rings over the following circuit: line wire 1, 14:, 7, 12, 11,9 and back over line wire "2. This actuates lever L to open contacts zi -s which are again close when the ringing ceases or at each interval in ringing. A ter the subscriber raises his receiver, ringing current, at the next ringing period, energizes magnet E in the followtrolled by signaling current from the central office, whereby the station may be rendered continuously dead for originating calls but may still be controlled to receive calls.

2. In a. telephone exchange system, a 'meter device, a lever for actuating the same, two controlling magnets for said lever acting in opposite directions, a lookout device, a key and a second lever jointly controlling said lockout device, and an armature on sai second lever acted on by thesame magnets, together with means to hold the metering lever after actuation,

3. A telephone exchange system comprising a central ofiice and connected subscribers stations having a call register and lockout comprising a meter, actuating means for the same responsive to current over the line to actuate the meter, means holding the meter in actuated position, and normally inoperatiye releasing-means rendered operaadapted to control the switch and itself coning circuit: 1, 3, cl, 4* 0, s .9 8, s s 46, tive upon actuation of said meter and placed H, 5,1, 6, E, 13, and'back over line wire 2. under the control of the subscriber. llhe energization of' magnet E pulls over 4. A. telephone exchange system comprislever L which closes contacts s-s an iiig a central oflice and connected subscribs -s The subscribers primary or bat-v ers station having a call register and loclr tery supply circuit is now completed as 5501- out comprising a meter, electromagneticaclows: line wire 1, 3, z, 4:, s, 3*, 8, s 4:, tuating means for the same responsive to H, 5, T, 6,15), 13 and back over line wire 2. The closure of this circuit notifies the operator that the called subscriber has answered, the ringing ceasesgand the circuit last traced is maintained by the lever L being held in its operating position as before described. At the end of conversation, when the subscriber hangs up, the magnetE is energized by current, from the centralstation, over the ing current over the line to actuate the meter, means holding the meter in actuated position, and normally inoperative electromagnetic releasing means and a'c'rcuit for the same rendered operative upon he actuation of'the meter and placed under the control of the subscriber.

a central oflice and connected sub- 5 A telephone exchange system comprisscribers stations having a lock-out key and circuit control means by which the station is rendered inoperative for outgoing calls,-

additional means for automatically render-- the subscriber.

6. A telephone exchange system comprising a central ofiice, and a connected subscribers station havin a lockout key and circuit control means y which the station is rendered inoperative for outgoing calls, additional means for automatically rendering said station operative for incoming calls said stat-ion when said lockout is on, means maintaining means rendered operative upon the actuation of said additional circuit controlling means and placed under. the control of the subscriber, and a meter operatively connected with the said additional circuit controlling means,. and means disconnecting the meter from said circuit controlling means when said. lock-out is on as aforesaid,

7. A telephone exchange system comprising a central oflice and a connected subscribers stat-ion, having a call register and lockout comprising a meter, actuating means for the same responsive to ringing current to actuate the meter, means holding the meter in actuated position, and normally inoperative releasing means rendered operative upon actuation of said meter and placed under the control of said subscriber.

8. In a telephone exchange system, a central ofiice and a connected subscribers station, having a call register and lockout comprising a meter, actuating means for the same responsive to currentover the line, and a lockout key and contacts operatively associated with both the meter and actuatmg means and the subscribers circuits, and adapted to be operated to simultaneously render both the meter and the substation circuits inoperative.

9. Ina telephone exchange system, a central office and connected subscribers station,

having a call register and lockout compris' mg a meter, two controlling magnets for said meter, one of said magnets being adapted to register a call on said meter, a lockout device controlled by a lockout key operative when so rendered as. aforesaid, normally moperative releasing talking circuit to close an and the said electromagnet jointly, means to hold the meter in actuated position, and means whereby said second electromagnet when actuated releases the meter from actuated position and restores the lookout device to normal.

10. In a telephone exchange system, a central oifice and a connected subscribers station having a register call and lockout device at the station comprising means for rendering the talking circuit of the station inoperative for outgoing calls, additional means for rendering said talking, circuit operative to incoming calls, said additional means comprising an electromagnet responsive, to ringing current sent over the line and located in a portion of the talking circuit together with means constituting a path for ringing current through said intherefor placed under the control of the subscriber when the talking circuit is rendered operative asaforesaid.

"11. In a telephone exchange system, a central stat-ion and connected subscri'bers station having a talking circuit and a plurality of multipled paths for the completion of the same, one of said adapted to enable the said circuit and another to disable the same when used to complete the circuit, and actuating means responsive to ringing current in the disabled enabling multiple pathfor the same,

12. In telephone exchange system a central station and connected subscribers station having a talking circuit, andmultipled paths for the completion of the same, one of which paths disables the same and another of which enables the same, a lock out control key forcompleting the talking circuit through either of said a third path in multiple with the first two and adapted to enable said talking circuit when closed, and actuating means responsive to ringing current in the inoperative talking circuit to close said third multiple path. 'In testimony whereof I afiix my signature in presence of two witnesses.

CHARLES v. RICHEY.

paths being paths at will,

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