DE108926C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

The present invention is a device for calling any Place of several points connected to a common loop line in Telegraph or telephone lines using a polarized alarm clock arranged at each point, which depending on the Current direction respectively. the use of one or both wires of the loop line for Sound can be made without the other alarm devices in operation set. This new call device is characterized by the fact that at every connection point two contact pieces arranged parallel to one another are provided, which current circuit arms wear and both against each other and against fixed Stromschlufsstücke while maintaining 'the parallel position in such a way can be set so that the alarm clock sounds at the point which the the respective setting of the contact pieces corresponds to the electrical current conditions created.

Fig. Ι shows a schematic view of the new connection system, Fig. 2 shows a schematic View of individual parts of the end stations of this system, with the switching device in normal position is shown. Fig. 3 shows a schematic view of individual parts one of the intermediate stations of the system and a front view of part of the housing, which is commonly applied to the magneto-electric machine; the switching device for the stations is shown in a usable version in this housing and the other parts of the station drawn on a smaller scale. Fig. 4 shows a schematic view of individual parts of another of the intermediate stations; the Switching device of this station is shown in the normal position. Fig. 5 shows partially in Side view, partly in section, the switching device shown in Fig. 2 and a the housing shown in Fig. 3 is similar.

In the arrangement according to FIG. 1, each of the stations A ¹ B ¹ C ¹ D ¹ E ^{1 is provided} with an electrical power source a ^l b ¹ c ¹ d ^l e ¹ , by means of which one of the stations can be called by any other of these stations can.

In order to be able to make the connections listed, a switching device is provided at each station. This device consists of two movable disks or contact pieces, which are designated at station A ¹ for example with a ^{> 0} a ¹¹ , and which are isolated from each other and can be rotated on a spindle a ^'28; however, this movement is limited in both directions by a stop a ³¹ each. The disks a ⁱ⁰ a ¹¹ etc. are held in one of their ^{limit positions} by means of springs α ^'29 a i0. At the same time, the springs also serve to hold the disks with the calling device α and / or. to connect the power source a ^l. The disk a ⁱ⁰ carries a contact arm. λ ¹² , the ends of which with the contact button a ⁹ respectively. be able to come into contact with one or the other of the contacts a ^e a ¹ a ^&. The disc a ¹¹ is provided with a contact arm a ^is

see who can be brought into contact with one or the other of the contact buttons a ^e a ¹ a ^8. The switching devices at the other stations are set up similarly and the parts are labeled accordingly, apart from the fact that at the stations B ¹ C ¹ D ¹ a special contact piece b ^2a resp. c ²⁶ and d ^{2a is} provided to enable that one or more stations can be switched off from the circuit.

The switching pieces α ¹⁰ α ¹¹ are provided with openings a ³² which do not face each other; suitable contact buttons a ³³ , which are expediently pointed or wedge-shaped at the ends, can be pressed into these openings and serve to bring them opposite one another and to bring the switching ^{pieces α 10} α ¹¹ into such a position that the direction and polarity of the current sent through one or both main lines from the magneto-electric machine a ^l is adjusted accordingly. The contact button corresponding to the desired station, as described below, is ^{held in its position while the magneto-electric machine α 1} is actuated, and when the desired station is called, the push button is released, which by suitable means, for example a spring a ³ⁱ , is returned to its normal position, whereupon the switching

normal position can be returned.

The switching piece a ^u carries an arm α ³⁵ , which is provided with a hook a ^3% , on which the telephone receiver d ¹ can be hung, this being helped by the receiver, as shown in Fig. Ι and 2, in its normal position , in such a way that the contact piece a ^{li is} kept in contact with the contacts to which the lines a ¹⁹ ti ²⁰ a ^{22 used} for calling are connected. When the telephone receiver α ^{2 is} removed, the arm a ^{35 is raised} by a spring α ³⁷ so that it brings the switching piece a ^u into contact with the contacts into which the wires a ¹¹ a ²³ a ²ⁱ a ^2b run out and thereby the telephone set a ² a ³ a ⁴ with the metal circuits AA ²⁰ in connection.

The current runs from the main line connection α ⁸ through conductor α ¹⁷ , switching arm a ¹⁴ , the secondary winding α ^{23 of} the induction ^{coil α 4} , telephone receiver a ² and conductor a ^lü to the main line A ²⁰ ; the primary circuit of the induction coil a * is composed of the conductor a ^{2i of} the battery α ⁵ , microphone a ³ and conductor a ²ⁱ and is closed by the switching arm a ^u at the same time.

The calling devices a, d and e are expediently set up in such a way that they are operated only by a current of positive polarity, while the calling devices b and c will only respond to currents of negative polarity. The braider the call devices are removed with a suitable springs or other means such as counter weights, the _t to be mentioned here is not necessarily, connected to the same through which returned into position.

In the example shown, five stations 4 ¹ B ¹ C ¹ D ¹ U ¹¹ are present, which are equipped with call devices from ede, inductors O ¹ O ¹ C ¹ ^ e ¹ , telephones α ² b ² c ² d ² e ² , microphones a ³ b ³ c ³ d ³ e ³ , induction coils a * b * c * d * e ⁴ and with the branches of the main line AA ²⁰ , as well as with the switching devices, as described and shown in Fig. 1, connected batteries a ⁵ b ^h c ⁵ d ⁱ e ^{5 are} equipped.

The contacts a ^e a ^s are respectively with the main conductors AA ^20. connected and at each station B ¹ C ¹ D ¹ these main conductors are divided into two branches, the contact buttons b ^ß c ^e 'd ⁶ are with the branch conductors B' ²⁰ C ²⁰ D ²⁰ , the contact buttons b ^& c ^& with the branches of the Main conductor AA ²⁰ respectively. connected which lead to the station A ^1, and the contact button d ⁸ is connected to a branch of the main conductor A ^'20 which leads to the station E. ¹ The remaining branches of the main conductors AA ²⁰ are connected to fixed contacts b ^2a c ²⁶ d ^2a , of which two c ^2R d ^{2a are provided} with two contact strips. These contacts b ^2a c ^2ti d ²⁶ are usually in contact with the movable contacts b ¹³ c ¹² d ¹² , and the contact button d ²⁶ is connected to one end of the conductor d ¹⁷ .

In order to make the establishment of the new connection system clearly recognizable, should now its Bethätisuns are described in more detail.

As stated above, the calling devices be with both main conductors in a common circuit; the calling devices ce are connected to the main conductor A ²⁰ and to earth, the calling devices bc are operated by currents of negative polarity, the calling devices de by currents of positive polarity. If the subscriber at station A ¹ wishes to actuate the negative call device b , he depresses the push button a ³³ , which corresponds to this station, and thereby moves the contact pieces a ¹⁰ a ¹¹ by a sufficient amount, in such a way that the contact lever a ¹² comes into contact with the contact α ⁹ without coming into contact with the contact α ⁸ . A negative current can now pass from the current source α ¹ to the calling device b. The circuit of this current consists of the negative conductor a ²¹ , the contact piece a ^w , contacts a} ² a ^s ,

Main conductor A, branch conductor B ² , contacts b ^s b ¹² b ⁹ ; Head b ²⁰ , contact piece b ^u , head b ¹⁹ , negative call device b, head b ^w , contacts e ⁶ e ¹³ , head e ¹⁸ , positive call device e (the latter is not operated by the current), head e ¹⁹ , contact piece e ^u , Conductor e ²⁰ , contacts e ⁹ e ¹² e ⁸ , main conductor A ²⁰ , branch ^{conductor D 3} , contacts d ^s d ¹² d ²⁶ , branch conductor D ² , main conductor A ²⁰ , branch ^{conductor C 3} , contacts c ²⁶ c ¹² c ^s , branch conductor C ² , main conductor A ²⁰ , contacts b ¹³ b ²⁶ , branch conductor B ³ , main conductor A, contacts α ⁶ α ¹³ , conductor α ¹⁸ , call device a, conductor α ¹⁹ , contact piece a ^u and the conductor a leading back to the power source a ^{1 22nd} ,

If the subscriber at station A wishes to operate the positive call device e , the corresponding pushbutton a ^{33 is} operated and the position of the contact lever a ¹² a ^{w is} reversed, and as a result a positive current is sent into the main conductor A , which starts from the contact lever a ¹³ and returns to the contact lever a ¹² via the main conductor A ^20.

The circuit of the power source a ¹ and the calling device e is the same as that previously described, and it is clear that this current cannot operate the calling device b. If the subscriber at station A ¹ wishes to actuate the negative call device c , he presses the corresponding push button a ³³ and thereby brings the contact levers a ¹² a ¹³ into contact with the contacts a ^B a ¹ , whereupon a negative current flows through the main conductor A ²⁰ and the stations C ¹ D ^{1 is sent} to earth, which serves to operate the negative calling device c.

The current flow between these stations Tl ¹ C ¹ D ¹ is as follows:

The current goes from earth through conductor α ¹⁵ , contact a ¹ a ¹³ , conductor α ¹⁸ , positive call device a, conductor α ¹⁹ , contact piece a ^u , positive conductor a ²² , current source a ^l , negative conductor α ²¹ , ^{contact piece α 10} , Contacte α ¹² α ^β , main conductor A ²⁰ , branch ^{conductor C 2} , contacte c ⁸ c ¹² c ⁹ , conductor c ²⁰ , ^{contact piece c 14} , conductor c ¹⁹ , negative call device c, conductor c ¹⁸ , contacte C ¹⁸ C ⁷ , conductor c ¹⁵ at station C ¹ on earth. Part of the current goes from contact c ¹² through contact c ²⁶ , branch ^{conductor C 3} , main conductor A ²⁰ , branch ^{conductor D 2} , contacte d ²⁶ d ¹² d ⁹ , conductor d ²⁰ , contact piece d ^li , conductor d ¹⁹ , positive call device d, conductor d ¹⁸ , contact d ¹³ d ¹ and conductor <f ¹⁵ , at station D ¹ to earth. This part of the stream, however, is unable to operate the positive calling device d . In order to put this call device d in. Activity and thereby call the station d ¹ , the position of the contacts α ¹² α ^{13 is} exchanged by pressing the corresponding button α ³³ , so that these contacts with the contacts a ⁷ a ⁶ respectively. come into contact. A positive current now flows through the same circuit previously described for the negative current used to operate the calling device c , and this positive current operates the calling device d without activating the calling device c .

The subscriber at any of the stations B ¹ C ¹ D ¹ E ¹ is also able to call any of the other stations; In order to clarify this operation, it is assumed that station D ¹ succeeds stations A ¹ B ¹ C ¹ E ^{1 by} means of the corresponding call devices a resp. bee wanted to call, and that the corresponding pushbuttons a ³³ of station D ¹ are pressed one after the other in order to bring about the desired effect of the switching device of this station. As can be clearly seen from Fig. Ι, the contacts d ¹² d ^{13 are} usually by the contact pieces ^{d m} and the conductor d ^is , call device d, conductor <f ¹⁹ , contact piece d ^u with negative respectively. positive conductors ii ²¹ d ²² connected, which lead to the current source d ¹ . When the positive calling device a, which is usually connected to the circuit of the main conductors AA ²⁰ , is to be actuated, the contact pieces are brought into contact with the contact d ^e and the adjacent part of the contact d ^2a. There then goes from the movable contact d ¹³ a positive current through the branch ^{conductor D 20} , the main conductor A, the station B (in which it is via the contacts b ²⁶ b ¹³ , the negative call device b, the conductor b ¹⁹ , switching arm b ^u , Contact b \ Arm b ¹² , Contact b ⁸ , branch conductor B ² ) and then through the main conductor A to the call device α and through the main conductor A ²⁰ and branch conductor D ² and the contact d ^2e to the .mobile contact d ¹² back . During this position of the contacts d ¹² d ¹³ , the contact d ⁸ is not in contact with the contact ^{d 12} • and as a result, no current reaches station E, which is located on the side opposite station D ^1. The positive current which operates the calling device α also passes through the calling device b without operating the same.

When the negative calling device b is to be actuated, the position of the contacts d ¹² d ^{13 is} reversed and a negative current passes to this calling device b and to the calling device α through the intermediate part of the main conductors AA ^'20 , and this current is the Access to station E ^[ , which is ^{opposite station D 1} , is cut off by keeping contact arm d ^{12 to} be in contact with contact d ^s . When pressing the

Calling device e , the contact d ^is connected to the contact d ⁶ , while the contact d ⁱ² comes into contact with the contact d ^2% and with the contact d ^a . From the contacts d ¹³ d ^e , a positive current then goes back through the branch ^{conductor D 20} into the main conductor A to the calling device e and through the main and branch line A ²⁰ D ³ to the contacts d ⁸ d ¹² . Since the contact d ' ^2a is not in contact with the contact ^{d 1} " ² , no current can reach the stations A ¹ B ¹ D ¹ opposite the station d ¹ .

When the calling device c is actuated, the contact d ¹³ is brought into connection with the contact ^{d 1} connected to earth, and the contact d ^l ~ in connection with the contact d ⁸ and in contact with a branch of the contact d ' ^2a - brought a negative current from the contacts rf ¹² rf ²⁰ along the branch ^{conductor D 2} , main conductor A ²⁰ , branch ^{conductor C 3} , contact c ²⁰ and contact c ¹ ' ² to the negative call device c and from there to earth.

The switching devices of station B ¹ C ¹ E ¹ operate essentially in the same way as the corresponding switching devices of stations A ¹ B ¹ and it is therefore unnecessary to describe their operation in full. It should only be noted that the switching device of station B ¹ , when it sends a positive current to station is ¹ , is one of the main conductors, which are connected to the opposite station A ¹ by the movable contact pieces b ¹² b ¹³ with the fixed contacts b ^a b ^'26 in connection, interrupts, in the same way as the switching device of station D ¹ interrupts one of these main conductors.

The electrical transmission devices of the various stations A ¹ B ¹ C ¹ D ¹ E ¹ are arranged in such a way that the electrical communication takes place through a metal circuit which consists of the two main conductors. As can be seen from Fig. 2 and previously described, the telephones are a ² ti ² c ² d ' ² e ² through corresponding conductors α ¹⁶ b ¹⁶ c ¹⁶ d ¹⁶ e ¹⁶ either to one of the main conductors themselves or to one of this main conductor branched branch conductors, and on the other hand, these telephones are connected by the contact pieces a ^u b ^u c ^li d ^u e ^li when they are brought out of their normal position, and the conductors a ¹¹ b ¹¹ c ⁿ d ¹⁷ e ¹⁷ with the other main conductor or connected by this branching branch conductor.

Claims (3)

Patent Claims: 1. Device for calling any of several points connected to a loop line in telegraph or telephone lines using a polarized alarm clock arranged at each point, which respectively depending on the direction of the current. Use of one or both wires of the loop line arrives at a certain point excluding the rest, characterized by two contact pieces present at each point and parallel to each other (a ¹⁰ a ⁿ , b ^lu b ^11. '' wear arms (α ^Ά α ¹³ , b ¹ ' ² b ¹³ ....) and against each other as well as against fixed electrical connection pieces (a ° a? a ⁸ a' \ b ° b ¹ b ^a b ^9.... ..) can be set while maintaining their parallel position in such a way that the alarm clock sounds at that point which corresponds to the electrical current conditions created by the respective setting of the contact pieces. 2. An embodiment of the device according to claim 1, in which the movable contact pieces (a ¹⁰ a ¹¹ , b ¹⁰ ^ ¹¹ ....; Have the shape of resilient discs or plates, which by inserting plugs ^{(a 33} b ^S3 . ...) in the corresponding holes (a ³ ' ² b ³ ' ² ....) of the disks to each other and to the fixed electrical connection pieces can be adjusted in the correct way depending on the location to be called. '■ · 3. Embodiment of the device according to claim 1, in which some of the switching ^pieces (a ^w a ^u , b i0 b ¹¹ ) with a fixed Stromschiufsstück fc ' ^2a respectively. d ^2e ) can be connected, for the purpose of switching off points that have an alarm clock polarized in the same direction from the circuit during the call to the currently desired point. For this purpose 2 sheets of drawings.