DE1162583B - Device for controlling an electromagnetically operated tabulating or. Column typewriter for recording measurements - Google Patents

Description

Device for controlling an electromagnetically actuated tabulation or column typewriter for recording measured variables The invention relates on a device for controlling an electromagnetically actuated tabulation or column typewriter for recording measured variables in the form of one or more Groups of digits or others in a predetermined order line by line on one Characters printed on the registration sheet with one of the characters to be pressed one after the other Printing processes step-by-step indexing sheet holder, with electromagnet for actuating print types and with a depending on the type to be printed Measured value to be set reading switch to select the control circuits for those type imprint electromagnets which, when actuated, are in the correct order effect the printing of the measured variable to be recorded.

A device of this type has already been described in German patent specification 1025 161 . According to this patent, the current or. Control circuits according to the electromagnets selected by a multiple switching mechanism, which. corresponds to the aforementioned readout switch and is mechanically coupled to the variable element of the device, for example the variable component of a bridge network, in such a way that the multiple switch mechanism selects those electromagnets for each setting of the variable element which, when they are excited in the appropriate order, selects the Print the reading or the value size corresponding to this setting of the variable element. In the circuit arrangement according to this aforementioned patent specification, a position switch is also provided which is assigned to the register sheet holder in such a way that it is actuated by the step-by-step advancement of the holder. The arrangement is such that in each of a number of successive positions, one of the control circuits after the electromagnet is completed or built up by the position switch, which is selected by the multiple switching mechanism, so that the sequence of excitation of the electromagnets directly under the control effect the step-by-step advancement of the car takes place.

The purpose of the invention is to provide an improvement, the one Represents an alternative to the position switch. The switch is due to his Cooperation with the registration sheet holder is an advantageous means, as he ensures that every digit or character of a measurand to be recorded is printed exactly in the correct column on the registration sheet. This is particular then the case when, as described in German patent specification 1025161, the Switch has one or more rows of contacts that are connected to a corresponding Component of switch arm contacts enter into an operative connection, and if either the Contact rows or the switching arm contacts on the registration sheet holder, for example on a typewriter trolley, and if the other contact set is in a changeable relationship to the car. Still, the job counter however, certain disadvantages are peculiar, which in certain circumstances are the aforementioned Advantage can outweigh. For example, in the embodiment described above the distance between the contacts in each row of contacts is determined by the path, around which the carriage moves with each switching step. This will not only the distance between the contacts, but also their size determines; whereby it must be taken into account that each contact is opposite to its immediately adjacent must be stripped. This also determines the size of the solenoid arm contacts, taking into account that provision must be made that a switch arm not bridging two neighboring contacts. A position switch must also be provided whose contacts extend over the entire length of a recording line, what in the case of recording eleven capacitance tests of a telephone cable quad can correspond to at least fifty-five print positions. In addition, the Position switch, if he is not actually in the printing press, for example in a conventional typewriter, at least in agreement be dimensioned with the characteristics of the machine.

The present invention makes the use of the digit switch bypassed and replaced by a so-called pressure switch relay group, which to use with numerous typewriter embodiments, which no sliding contacts are required and in which the number of working contacts is considerably lower.

This is achieved according to the invention in that a pressure switch mechanism is arranged, consisting of a set of relays, which, by control pulses, one after the other energized, the control circuits in the appropriate order and via relay contacts to the selected type imprint electromagnet, that also one of these Pulse generator generating control pulses is arranged with two pulse relays, which interact with each other in a cyclical sequence and drop out and one of which relays a control circuit to actuate each time it is energized a type imprint electromagnet produces, and that the relay of the pressure switchgear a closing relay is assigned, which resets when it is actuated causes the pressure switch relay to return to its initial state.

Furthermore, a proposal has already been made as the subject of German patent 1 122 720 to use relay devices instead of or in addition to the multiple switching mechanism, which is described in German patent specification 1025 161. The variable element is the variable component of a bridge network, and the multiple switching unit is completely replaced by a group of relays, which represents the so-called read-out switching unit and which is used both to actually change the size of this component and to select the electromagnets.

The present invention can also be applied to such devices Find use in which the reading switch mechanism from a group of relays exists, which is referred to in the following as the »reading relay group«, whereby the Relay respond to the setting of the device from which a recording should be made to select those electromagnets which will be used for recording this setting must be excited.

The reading switchgear can consist of a group of reading relays, and in this case the pressure switch relay is used in a further embodiment of the invention assigned closing relays in addition, the reading relays in their initial state bring back.

Another embodiment of the invention is that the cyclic Activation of the pulse relay is initiated by a relay, which automatically then responds when through the reading relay the electromagnets to print a Measured variable are selected, and a corresponding control circuit for the Pulse relay closes.

For example, if the meter is the variable element of a bridge network forms, the relay initiating the cyclical actuation of the pulse relay can through a relay can be controlled, which in turn depends on the switching status of the bridge responds and in connection with another relay and with relay contacts the Actuation of the reading relay interrupts which when setting the variable Bridge element was effective.

The invention is explained with reference to the drawings, which show a circuit arrangement for testing quads of a telephone cable, namely represents F i g. 1 to 4 (merged) the circuit arrangement of the overall arrangement and F i g. 5 is a block diagram of the in FIG. 2 and 3 shown control circuits, wherein certain details are omitted which are not essential to the invention are necessary; F i g. 6 indicates how the FIG. 1 to 4 can be put together to form an overall circuit diagram are.

The device is used for automatic execution and registration a series of tests on each of the four of a telephone cable, where the sets of tests or test results for each foursome in one Line as well as in columns that are transverse to the width of a Registration sheet run. Each column consists of five digits, namely for the imprint a sign - + (plus) or - (minus) - for a maximum of three characters or Digits and for a space between the columns. The number of characters or digits can be other than three, depending on the value or the number of digits in the value, which is to be registered, and it is set up so that the sign is always immediately precedes the first character.

In this diagram, the ending of a line means in a broad one filled triangle a connection of the same with a power source, the other Pole is grounded; denote letters drawn within a rectangle the winding of either a relay or an electromagnet passing through the rectangle is called. The electromagnets are by the initial letter M marked. Contacts, which are operated by the relays, are with the corresponding letters together with an appended number. Some manually operated switches or switching mechanisms are available. The contacts and switchgear are indicated in the positions referred to as zero or normal positions, which they take when the relay coils are not traversed by the current and the rear derailleurs are not operated.

The circuit arrangement is set up to carry out a test similar to that described in German patent 1 122 720, and FIGS. 1 and 2 essentially agree with FIGS. 2 and 3 of the earlier patent match. The description of the circuit arrangement is to be understood in such a way that it is intended for the test known as the "cable core test" of a telephone cable, i.e. for testing the quadruples, each of which has isolated insulated wires after the quadruples have been brought together to form the cable. before the outer jacket is applied. The four tests to be recorded are: one for the inner quad capacitance imbalance, one for the inter quad capacitance imbalance and two for resistance imbalance, the first two being carried out with a capacitance bridge and the latter two with a resistance bridge. An insulation resistance test is carried out, if necessary, before the other four tests; but this is not registered. The operation of the circuit arrangement is automatically brought to a standstill if the insulation resistance shows an error. The insulation tester can have the embodiment as it is the subject of the earlier German patent 1001 412.

In this way, five tests must be carried out, whereby the result of the first is not written down. Four quads are connected to four four-way plugs ST 1 to ST 4 , and these plugs are connected in sequence to the circuit arrangement. As the tests progress, the operator replaces the tested fours with unchecked ones, each at its own time in the prescribed order. The alternating selection of the corresponding four female and the selection of circuits between each jack and the test units is performed by a stepwise moving rotary switch which five decades RLS 1 to RLS5 (F i g. 2), and by a step switching magnet MT (F i g 4) is controlled. It can be seen that on each decade there are four groups of contacts corresponding to the four sockets and five contacts in each group corresponding to the five tests. The decade RLS 1 operates four relays CA to CD, which control the connections between the sockets ST 1 to ST4 and a set of busbars X 1 to X 4 and Y 1 to Y 2 . The decade RLS 2 controls, from each group of five contacts, five relays CE to Cl, which establish the connections between the busbars and the test units, namely to the insulation resistance tester via contacts CE 1 to CE 4, to the capacitance bridge initially via contacts CF 1 to CF 4 and then via contacts CG 1 to CG 4 and to the resistor bridge first via contacts CH 1 to CH 3 and then via contacts C11 to C13. The third decade RLS3 controls, via the first position in each group and manual switchgear KBR 1, KBL 1, KTR 1 and KTL 1, a relay DA to start the insulation resistance test, this relay being thrown off via contacts DF2 if the test is satisfactory. In the second and third positions, relay CJ is actuated in order to connect the capacitance bridge to an alternating current network and to a voltage comparator VC, which is effective in the automatic balance control of the bridge. In the fourth and fifth positions, relay CK connects a DC voltage source and the voltage comparator VC to the bridge and sets the latter for DC testing; Relay CL switches a group of resistors in a standard quad STD via contacts CL 1 to CL 4 , thereby enabling resistance imbalance test measurements, and relay CLS closes four sockets SB 1 to SB 4 at the opposite end of the through contacts CLS 1 Short cable. The fourth decade RLS4 is assigned to a circuit in the first position in each group, which is used during the manual test release, and in the remaining positions to a relay CM, which establishes the circuits for the automatic balancing of the bridges (not shown). The relays CO and CN, which are assigned to the fifth decade RLS5, are used, if necessary, to eliminate or suppress any tests. The relays CM, CN and CO will be discussed below.

The bridges are balanced by automatically connecting units of capacitance or resistance to the network through the selective actuation of contacts A 3 to 13, K 4 to S 4 and T 7 or A 4 to 14, K5 and K7 each through a group of readout switch actuation relays A. to T, which are shown in FIG. 3 (RSA in Fig. 5) can be added. The units are switched on, either in the negative or positive sense, depending on the positions of the contacts BE 3 and BE 5, which are controlled by the relay BE , the normal arrangement of the contacts corresponding to a positive addition. In the measured value switching group, relays A to I add units, relays K to S add tens, relay T adds a hundred. The relays A to 1, K to T control corresponding measured value switching mechanism contacts A 6 to 16, K6, L 3 to R 3, S 6 (RSC in F i g. 5) to thereby the corresponding circuits for the actuation of the pressure magnets MO to M9, which, when activated, print the corresponding number on a registration sheet. The relays K and T also control the corresponding contacts of the group K3, K6, K8, T5, T 6 and T8, in order to thereby effect the printing of the sign in the respectively required column. Positive and negative signs and a space bar are printed by magnets M +, M- and MS , the sign to be printed being determined by the switching state of the contacts BE 6 .

The measured value switching relays J, JA, JD effect the transmission of the effective switching status between the units, tens and hundreds relays, and relay JE serves to stop the automatic actuation of the circuit arrangement if the measured value exceeds the value range of the circuit arrangement. The working of the measured value switching relay is automatically terminated when the balance of a bridge has been established. The relays set the measured value switching mechanism contacts which, in conjunction with pressure switch contacts TA 4, TB 4, TC4 and TD5, interconnect the circuits for the pressure magnets, which, if they have been produced in the manner described below, cause the pressure magnets in succession respond in order to thereby register the value at the respective required place on the registration sheet, which has been set by the measured value switching mechanism actuation relays when the bridge equilibrium was achieved.

The operation of the measured value switching relays shown in FIG. 3 are shown, and the circuit arrangement according to FIG. 1 and 2 have been described in detail in the earlier patent 1 122 720 and will therefore only be dealt with in the following to the extent that this appears necessary to explain the present invention.

If the appropriate connections have been made for one of the bridge tests on a quad, the imbalance switching state that is originally present causes the contact BA 1 (Fig. 3) of the sensitive relay BA (Fig. 1) to the one or the other side, depending on whether the imbalance is either positive or negative. When the equilibrium is established, the relay BA brings its contact back to the middle position. By deflecting the contact BA 1 (Fig. 3), the circuit of either the relay BB or BC is closed (via the closed contacts BE8 and B13) , and the relay BD then responds as the contacts BB 3 or BC3 close . At the same time the relay BH responds in series with either BB or BC and changes the contacts BH 1 in order to thereby connect the working earth to the measured value switching mechanism actuation relays via the closed contacts JE2. As a result, these contacts BH 1 remain actuated during the entire process for establishing the bridge equilibrium and then open when the relay BH is released, which prevents any further actuation of the measured value switching relay. The actuated relays, however, are held by the holding strands through the normally closed contacts JE3 and CQ 1 (Fig. 4).

After the relay BD has responded, it is held via the contacts BD 5. As a result, the switching status at the end of the test is such that the measured value switching mechanism contacts are set and held, the relays BB and BC are released and the relay BD is actuated . These latter switching states represent one in FIG. 4 through the relay TF through the contacts TG 2, BD 6, BC 6, BB 6, JE 3 and CQ 1 to earth 1. When the relay TF responds, the contacts TF2 close, whereby the circuit for the relay TG is produced. The relay TG opens the contacts TG 2 and thereby throws off relay TF, so that the contacts TF2 open again. Relay TG then drops out and contacts TG2 close again, as a result of which the original switching state is restored.

It can be seen that the combination of the relays TF and TG automatically causes a response and release cycle, the frequency of which is determined by the operating time or response time for the relay FT , one winding of which is short-circuited via a resistor. Each actuation of the relay TG is accompanied by the actuation of a pressure magnet which is connected in series with it. It also opens the contacts TG 1 in a pressure switch group of relays TA to TE, CQ, so that as long as the earth circuit switching states of TF remain or continue as described above, these contacts TG 1 open continuously and close, with the operating frequency of the relay TG.

The group of pressure switching relays TA to TE, CQ, which has the structure described in German patent 1056188, consists of a changeover relay TE, which actuates the changeover contact TE 1 , of three odd relays TA, TC and CQ and of two straight lines -Relay TB and TD. The odd relays are set up to be connected to the odd line w, the even relays to the even line x. The holding earth line y serves all relays in the group except CQ. The pressure switch relays control pressure switch contacts TA 4, TB 4, TC 4 and TD 5 (PSC in FIG. 5) in the circuits to the pressure magnets. In the initial switching state of the circuit via the contacts, the circuit via contacts TA 3 is ineffective due to the winding of the relay TE, although there is a circuit via contacts BD 6, BC 6, BB 6, JE3 and CQ1 because the winding via the Contacts TE 1 and TG 1 is short-circuited. The effect of the first actuation of the relay TG is consequently to eliminate this short circuit by opening the contacts TG 1 , whereby the relay TE responds and the contacts TE 1 fold over to the odd line w. Then, when the relay TG drops out, the contacts TG 1 complete the earth circuit of the relay TA via the upper contact of the changeover contacts TE 1. Relay TA then holds itself via contacts TA 1 and opens contacts at TA 3 for one of the windings of the relay TE. This relay does not drop out, however, since the circuit has been established by its second winding via the changeover contact TE 1 .

The next time the relay TG is actuated, this circuit of the relay TE is opened by the opening of the contacts TG 1 and the changeover contact TE 1 is caused to move into the lower position, whereby the circuit for the straight line, relay TB with the help of contacts TA 2 is prepared, which have been closed when the relay TA is actuated.

When the relay TG is released, the circuit of this even relay TB is established via contacts TG 1 , and the relay responds, holds itself via contacts TB 1, prepares the circuit for the odd relay TC at contacts TB 2 and prepares a circuit for the first winding of the relay TE via contacts TB 3. The relay TE does not respond, however, because of the short circuit through the contacts TG 1.

When the relay TG responds the next time, this short circuit is opened; the changeover contacts TE 1 move into their upper position, and when the relay TG is released, the odd relay TC responds, with it holding itself via the contacts TC1, preparing the circuit for the even relay TD via contacts TC2 and the circuit for disconnects the first winding of relay TE at contacts TC3. The latter has the effect that relay TE is dropped when relay TG responds, and the changeover contacts TE 1 then move into the lower position.

The next time the relay TG is released, the circuit for the straight-line relay TD is completed via the contacts TG 1 , and the relay TD responds, with it being held via contact TD 1 , preparing a circuit for relay CQ to the contacts TD 2 and in turn prepared a circuit for the first winding of the relay TE on the contacts TD 3; this winding of the relay TE does not respond because it is short-circuited.

The next time the relay TG is actuated, the contacts TG 1 are opened and the changeover contacts TE 1 move into the lower position, as a result of which the straight-line relay CQ is made to respond when the relay TG drops out. The relay CQ has the switching effect that all circuits are separated by breaking the earth circuit at contacts CQ 1 ; at the same time it connects its own winding via the contacts CQ 2 to the capacitance-resistance circuit, which holds the relay for a short period of time due to the discharge of the capacitor. The effect of opening contacts CQ 1 is to enable all pressure switch relays. It also drops the relay BD and the relays of the measured value switching mechanism actuation by opening or disconnecting the holding earth circuit.

Before the relay dropped out, the switching magnet MT was actuated via the contacts TF 3 and TD 4 when the relay TF was last actuated. This magnet MT moves the test sequence switchgear by one switching step, thereby switching the connections of the quad under test from one test process to the next, so that the next test process starts automatically after the relay has dropped out. After actuating the magnet as often as the number of test processes per four, the relay CM is disconnected from the switching mechanism decade RLS 4 , and this causes the contacts CM 2 to be in series with the winding of the relay BA (F i g . 1) Open so that the control arrangement for establishing the equilibrium and for printing the test result during the insulation test is out of order. When the rotary switch takes the first switch position in one of the group of contacts that represent the tests on the four sockets ST 1 to ST 4, the insulation test of the next quad goes ahead, and it is followed by the other four tests to be registered. However, if the rotary switch has moved into a position outside of these groups, the mode of operation is modified in the following way: From the preceding description it can be seen that the interaction of the relays TF and TG with the pressure switch relays transmitted five impulses to the pressure magnet are. With each pulse, the corresponding magnet responds, and this means that the corresponding symbol is printed at the point on the recording sheet that corresponds to that pulse. The registration sheet on the typewriter trolley takes the starting position at the beginning of the test. By means of the typewriter indexing device, the carriage moves by one switching step with each rotation, so that it has moved over twenty positions when printing the four test results and is always in the correct position for printing each sign, character or each space bar value is located.

With each measured value or each reading, a magnet in series with relay TG via contact TA 4 in the rest position is actuated at the first pulse, the magnet being either the space bar magnet MS or a sign magnet M - or M +, which is activated by the measured value switching mechanism contacts T5 is selected. With the second impulse, the pressure switch mechanisms of contacts TA 4 are operated by relay TA (this itself is triggered by the previous release of relay TG ), thereby creating a circuit via the contacts TB 4, which are in the normal position, to the space bar magnet MS , a sign magnet M - or M + or the magnet M 1 for the purpose of imprinting the digits one. With the third pulse, either a sign magnet or a numeric magnet is actuated via the actuated contacts TA 4 and TB 4 and the contact TC4, which is in the rest position. With the fourth pulse, a number is printed on the circuits to the associated magnets via the actuated contacts TA 4, TB 4, TC 4 and the contact TD 5, which is in the rest position. With the fifth pulse, a circuit for the actuation of the space bar magnet in the fifth, ie in the last position, is always established via the actuated contacts TD 5. With the exception of the fifth response, it can be seen that in each position the associated magnets or circuits are actuated, which have been selected by the measured value switching mechanism contacts in cooperation with the pressure switching mechanism contacts.

It is necessary for the switching magnet MT that it responds after the insulation test process that has not been registered. This is achieved by means of the relays T 1 and TH . After completion of the insulation testing the relay DF responds to thereby actuate the contacts DF9 and the relay DA (which responded to the test initiate) is discarded to thereby 9 to close contacts DA again, whereby a working ground circuit for relay TH is established by the decade switch RLS4 via contacts T11 . This closes the contacts TH 1, thereby creating the circuit to the magnet MT. A circuit is also established via the contacts TH2 to a delayed relay T 1 , which, when responding, flips the contact T11 in order to hold itself and throw off the relay TH. This latter interrupts the circuit to the switching magnet MT at the contacts TH 1, and when the rotary switch has been moved out of the first switch position, the holding circuit for the relay TI on the decade switch RLS4 is interrupted. The rotary switch can be advanced manually by connecting the switching magnet MT to earth via the switching mechanism KCx and by closing and interrupting the connection accordingly. When the tests on the four fours are finished, it is necessary to cause the rotary switch to return to its zero position. This is achieved by relay CS, which is assigned to the switching mechanism decade RLS 1 and responds, thereby changing the position of the contacts CS 1 and thus creating a circuit for the switching magnet MT via its own contacts MT 1 from each decade. If it is necessary to eliminate or skip any tests, a relay CO is actuated by the switching mechanism decade RLS 5. This closes contacts COy in order to thereby switch on an actuating earth for the relays TI and TH , which advance the incremental magnet in the manner described. In addition, the contacts COx are closed, thereby providing a ground for the actuation of the pressure switch relay. Since the measured value switching mechanism actuation relays are not effective in this case, the empty space magnet MS is actuated at every point across the column, corresponding to the test or tests that have been eliminated.

Claims (4)

Claims: 1. Device for controlling an electromagnetically operated tabulator or column typewriter for recording measured variables in the form of one or more groups of digits or other characters printed in a predetermined arrangement line by line on a registration sheet with a registration sheet holder that can be incremented during the successive printing processes, with electromagnets for actuating printing types and with a read-out switch gear to be set as a function of the measured value to be printed for selecting the control circuits for those type imprint electromagnets which, when actuated in the correct sequence, cause the measured variable to be printed out, characterized in that a pressure switching mechanism is arranged, Consists of a set of relays (TA to TD), which, excited one after the other by control pulses, in the appropriate sequence and via relay contacts, the control circuits for the selected type Nabdruck electromagnets (MS to MO) produce that a pulse generator generating these control pulses is also arranged with two pulse relays (TF, TG) , which respond and drop out in cooperation with each other in a cyclical sequence and one of which relays (TF) with each excitation produces a control circuit for actuating a type imprint electromagnet, and that the relays (TA to TD) of the pressure switching mechanism are assigned a closing relay (CQ) which, when actuated, causes the pressure switching mechanism relays to be reset to their initial state. 2. Device according to Claim 1, in which the reading switching mechanism is selected from a group of reading relays consists, characterized in that the closing relay assigned to the pressure switch relay (CQ) also serves to return the readout relays to their initial state. 3. Apparatus according to claim 2, characterized in that the cyclical actuation of the pulse relays (TF, TG) is initiated by a relay (BD) which responds automatically when the electromagnets are selected for printing a measured variable by the reading relay, and thereby a corresponding control circuit (CQI, BB6, BC6 and BD6) for the pulse relay closes. 4. Apparatus according to claim 3, wherein that measuring device forms the variable element of a bridge network, characterized in that the cyclic actuation of the pulse relays (TF, TG) initiating relay (BD) is controlled by a relay (BA) , which in turn is on responds to the switching status of the bridge and, in conjunction with another relay (BH) and with relay contacts (BH I), interrupts the actuation of the reading relays that were active when the changeable bridge element was set. Older patents considered: German patents No. 1 025 161, 1 074 276.