Патент USA US2104998код для вставки
Jan. 11, 1938. ‘ F_ |_||_|_ ET AL 2,104,998 IMPULSE SENDER Filed Oct. 25, 1935 4 4 “ < O EMER GE/VCY 5734710” PRESELECTDR I v TELEPHONE E3 6 FIG. 2 , INVENTOR. FRIEDRICH LILL BENEDIKT KUDRNA x T/W ATTORNEY. Patented Jan. 11, 1938 2,1 42,998 UNITED’ STATES PATENT orFicE 2,104,998 IMPULSE SENDER Friedrich Lill and Benedikt Kudrna, Vienna, Austria, assigncrs to Siemens & Halske Ak tiengesellschaft, Wernerwerk, Siemensstadt, near Berlin, Germany Application October 25, 1935, Serial No. 46,672 In Austria October 31, 1934 > 10 Claims. (Cl. 179-5) The invention relates to an impulse sender for the impulse sender from executing more than one setting up telephone calls automatically by means rotation is removed from engagement so that the of a single operation of the setting device. In impulse sender is free to rotate. This switching an impulse sender of this type it is usual to pro 5 vide a disc, or the like, which can be displaced along an axle and which serves as a setting mem~ her and according to the position in which it is set effects the necessary impulse control. The number of impulses to be transmitted is con 0 trolled by camsor the like, on the axle whose rela tive position in each cam sequence varies accord ing to the number ‘of the subscriber to be called. When the disc has been set on one of the cam 15 sequences the latter is set in rotation together with the other cam sequences by means of a spring drive or the like and in conjunction with the setting member effects the control of the im pulse contact. Patent 1,965,122 issued July 3, 1934 to L. Kardorif shows an example of one form 20 of this structure. The invention proposes to use such an impulse sender both for calling the various subscribers of the system in which case the setting member is pushed to the appropriate position and the ap 25 paratus is then operated and released by hand, and also for transmitting impulse ‘trains for' the purpose of calling particular stations e. g. police station, ?re station, etc., in which case the trans mission of these impulses is effected independ 39 ently of the actual position of the setting member without the apparatus being operated by hand since in this case its release is remotely controlled by means of keys or emergencycontacts _e. g. means when operated switches over from the im pulse contact which can be set by means of a slider, to rigidly mounted contacts over which the necessary succession of impulses for calling up the police, ?re station, etc., are transmitted. The drawing, Figs. 1 and 2, represents an em bodiment of the invention. The invention is, however, not limited to this embodiment. The device shown is one in which only one particular station is called by means of the electrical re mote control, this being the police. It is clearly possible to call a number of such stations e. g. ?re station, police station,v in a simple manner, in which case, through operating diiferent keys, various ?xed contacts are operated by means of various electromagnetic switching means. Fig. 1 shows the general mechanical construction of ‘the impulse sender. The impulse sender con sists of a displaceable contact lk (Fig. 2) on a setting member such as 3 of the patent which, with the cooperation of contact 32‘ (Fig. 2) trans mits particular impulse trains to the exchange, 25 according to the setting taken up during the mo tion of the impulse sender over cam discs such as I‘! of the patent which are fastened to a shaft I, with the object of effecting a simpler and more rapid establishment of calls to stations which are often in demand. The driving shaft l is asso ciated with a driving spring which is not shown which permanently strives to rotate the shaft 5 ‘burglar alarm contacts. ‘This is of‘ great advan 35 tage since the transmission of the communicating carrying the impulse cam discs, in the opposite impulse‘ trains can be governed from any desired toothed gearing (not shown). This rotation is prevented by means of a disc 2, mounted on the spot, independently of the position of ‘the impulse sender. ‘ - The known impulse senders whose manner of 40 operation is described in the aforesaid patent have the property that the driving springs, after each operation and subsequent release, possess a residual tension which is capable of producing several complete rotations of the impulse sender. This residual tension in the driving spring is now used to effect the sending of impulses for the special purposes such as calling up the police or ?re station, etc. for which a special constant succession of impulses must be transmitted. 50 A further characteristic of the invention resides in that the release of the impulse sender for the purpose of giving out the aforementioned de?nite succession of impulses is remotely controlled by 5.5 means of an electromagnetic switching means (relay) in that the locking pawl which prevents direction, to that in which it is drivenby a ' shaft I, which possesses a slot 3 in which the nose ,5 of a pawl 4 engages. The pawl 4 which is pivoted at its axis of rotation 6 is pressed into the locking slot 3 by a spring ID. The corre sponding elements of the aforesaid patent are disc l3, shaft '1, slot 43, and pawl l2. The mechanical release of the impulse sender takes place, after the setting member correspond 45 ing to member 3 of the patent has been displaced, by means of a lever such as 2 which rotates a driving shaft 1 in the direction opposite to that shown, whereby the locking pawl 5 is raised by means of the screw 3 on the shaft i thus re leasing the disc 2. 50 In the patent this is ac complished by lever 2 engaging shaft II to dis engage pawl ! 2 from disc 1 3. The driving sprmg is wound up at the same time. During the mo tion or the impulse sender the driving shaft 1 55 2,104,998 the b-lead over a second winding BII, contact 9b, ‘and contact l2ko of the impulse sender which remains closed throughout the motion of the rotates back into its original position, so that after a single rotation of the disc 2 has taken place the locking lever 4 is again operated into the notch 3 by means of the. spring l0, and brings. the impulse sender to rest. sender. Contact 1km‘ transmits the impulses necessary for characterizing the calling'station and for calling‘the police station over the a-lead, The remotely controlled operation by’ means of electro-magnetic.switching means (relay) is operated'contacts 2b and 3a; contact ‘Ham, and contact Bi or contacts wand 81‘. The selector and connector are thereby operated to establish 10 subjected to current the projection 9 associated-.1 1 the emergency connection. Contact Ik which with the armature moves downwardywhereupon l, is. operated mechanically remains inoperative effected by a projection 9 associated with the ar mature of relay B‘ (Fig. 2). When relay B is during this transmission. After the impulse ' sender has come to're'st contact- l2ko opens and the locking lever 4 disengages from notch 3 and releases the impulse sender. ‘ " ' relay VB deenergizes- Fig. 2 indicates the electrical arrangements. 15 The impulse sender possesses yet another con-V ‘ ‘ ' If the key Tisidepressed a second time after the energizing' of relay B, contact Ilb prevents tact 1km: Withdrawn from_the subscriber’s in ?uence, which in association with.’ contact 82' ' (the impulse- transmission which has already com-V transmits the impulse trains necessary for se'-' ,menced,‘ from being interrupted. lecting the particular station. The transmission of the impulse trains characterizing the calling '20 ' subscriber is necessary so that the calling sub scriber need not take up the receiver and yet the called station will be informed as to which sub scriber is in danger. During the motion of the 25 impulse sender contact lZko of the latter is per manently closed-7 and characterizes the normal station is connected for a normal call,.the latter 20 is. interrupted by the low resistance earthingw of the b-lead iover relay A, and the same operations are brought into play' as have already been de scribed.‘_ '- a .» Y ' ' If the key T is depressed while the impulse sender is in operation .for setting up a normal call, the partial connection already 'e?ected is A and B bring about the operation of the ap propriate contacts. All further details, such as '30 the selecting switches or devices in the exchange, brokendown by the earthing through low re; invention are omitted. - , ' 35 nection with a subscriber which is provided for by‘ the impulse sender, he takes up the receiver thereby closing the usual subscriber’s loop cir cuit to the preselector which operates in thewell known manner to seize an idle. selector. He 40 then sets the.’ displaceablecontact lk over the appropriate cam disc, and then operates the driv ing device of the impulse sender whereby the necessary loop interruptionsfor establishingthe desired connectionby operation of the’ selector 45 and connector in the exchange are transmitted over line a. contacts 217-, Ht, 6b, 82‘, and line h, during the motion of the impulse sender thus produced. 7The contacts 11cm: and mm which areoperated mechanically remain electrically in 50 operative during this process. , ~ 7 ' If, however, the subscriber, who is in di?icul ties, wishes, for example, to call the police, he has merely transitorily to operate the key T which is placed many desired locationand is connect; -55 ed to the impulse sender by a line. A circuit is V vc0 75 relay A, b-lead, and battery in the exchange, re. lay A remains energized and the earth connected to the exchange is maintained until the impulse > 121cc opens and the operations‘already' described take place. ‘1. Whatis In anclaimed impulseis:sender v for " ' establishing -. ' q tele phone calls in which a setting member is em ployed for selecting any desired station to be called, means for operating said impulse sender 110 after said setting member has been operated to establish a callto another station, and means for operating said impulse sender to establish a call to a different station independent of the operated position of said setting member. 2. In an impulse sender for establishing tele phone calls in which a manually operated setting member isnused for selecting any desired called station, manually operated. means for operating said impulse. sender afterisaid setting member has been set to'a desired station for establishing a; call to that stationhand remotely controlled means for operating said impulse sender to es tablish an emergency call independent of the operatedposition of said Setting member. 55 3., In an impulse sender for establishing tele thereby completed for relay A: earth T, lib, relay A, b-lead, and byway ofia relay in the phone callsin which ‘a setting member is manu ally operated to a position corresponding to a exchange which preselector is shown. diagram matically, to. battery. This results in the opera desired called station, manually'operated means tion of .thepreselector to select an idle selector for starting the operation of said impulse sender switch. Relay B whichv is connected up in par-7 allel to the b-lead over: earth, operated contact 30., winding I of relay B, contact ‘17cm, operated 65 sistance.‘ , Over earthycontacts l27co, Ida, lib, sender reaches its. normal position when ‘contact . If the subscriberwishes to establish a con ' ' ' position. of the impulse sender. The two relays are shown diagrammatically while thegdetails which are not essential for'understanding the ' . _If the key‘? is depressed. while the subscriber’s to establish a’ connection with the station on which saidsetting member has been set, remote ly controlled means for starting ,the'operatio'n ofv contact 5a,. is so adjusted, that it cannot ener said impulse sender to establish a'connection with ‘ gize over the line resistance in parallel with the 'an‘emergency station independent of the' oper-"‘ low resistance relay A, so long as the key remains ated position of said setting member, and'circuit depressed. As soon. as the key is released relay means for disconnecting an existing connection B, energizes on account of the disconnection of ,with'a called station or one being set up ‘to a ' the parallel low resistance circuit of relay A; called station at atime when the remotely con Relay A is slow to release on account of the pos trolled means operates the impulse sender. 70 session of a copper slug. Relay B energizes and 4. Inan impulse sender as claimed in claim 3, by the movement of its armature effects the me means'forregistering the remote control opera chanical release of the impulse sender in the tion of the impulse sender in case the impulse manner already described. After the deener sender is being operated for another call until gizing of relay A relay B remains connected to it has reached- its normal position. " ' 75 2,104,998 5. In an impulse sender for establishing calls between stations having a setting member which is moved to a position corresponding to a desired station and in which a driving spring in said sender supplies the motive power, manually oper ated means for tensioning said spring and start ing the operation of said impulse sender to estab lish a call to the station selected by said setting member, remotely controlled means for starting 10 the operation of said impulse sender to establish a call to an emergency station independent of the setting of said setting member, the residual ten sion stored in said driving spring after each man ual operation of said impulse sender being e?ec tive to operate said sender when remotely con trolled. 6. In an impulse sender as claimed in claim 2 in which impulse contacts for calling other sta tions and emergency contacts are provided and 20 in which said remotely controlled means includes an electromagnet that e?ects the disconnection of the impulse sending contacts for calling other stations and connects up other impulse sending contacts for establishing other emergency calls. 7. In an impulse sender as claimed in claim 3 in which after the impulse sender has been oper ated in response to the remote control and dis connected an existing connection the connection of the calling telephone is reestablished. 30 8. In a telephone system, an impulse sender for transmitting regular call numbers to connect with called telephone lines and also for transmitting emergency call numbers in which the sender is 3 transmit an emergency call independent of the setting 01' the sender and independent of a pre~ viously established connection to a regular line. 9. In a telephone system, an impulse sender having a set of impulse contacts for establishing 5 connections with regular called telephone lines and another set of impulse contacts for estab lishing a connection with an emergency line, means in said sender for connecting said regular impulse contacts for operation and for then op 10 erating them to establish a connection with a called telephone line, a relay in said sender hav ing a set of contacts for connecting said other set of impulse contacts for operation, and remotely controlled means for operating said relay. 15 10. In a telephone system, an impulse sender having a set of regular impulse contacts for es tablishing connections with called telephone lines and another set of impulse springs for establish ing a connection with a single special line, cir 20 cuit connections extending from each of said set of impulse contacts to the telephone line, switch ing springs manually operated to connect said regular impulse contacts to the line to establish a connection with a called line, a relay in said 25 sender, contacts operated by said relay to con nect said other set of impulse contacts to the line to establish a connection with said single special line, said relay contacts also operated to discon nect said switching springs from the line to in terrupt any established telephone connection, an emergency key located remote from said sender, and means responsive to the operation of said manually set to transmit regular call numbers to ‘ key for operating said relay. 35 connect with a called line, and separate means FRIEDRICH LILL. for controlling said sender to automatically BENEDIKT KUDRNA.