Device for the remote correction of clock installations

For the standardization of the numerical data of several clocks so-called main clocks are used as well known, which by release, e.g. minutlich repetitive Stromstöfie any number of so-called slave clocks to operate more briefly. Thus a clock net from electrically coupled clocks is creative, which permits a standardization of the numerical data in the sphere of activity of the main clocks. Since however with by Stromsender main clock loaded for the controlling of the slave clocks with application more exactly and thus expensive works larger course deviations are not to be avoided, develops in this way a difference in the numerical data of the individual clock nets, which is increased by adding in both directions taking place the differences, i.e. in a case via positive and in the other one via negative deviation, nor. The available invention aims at, which by coincidental, e.g. atmospheric effects and/or strange impulse caused to switch possible Einiltisse off without the regulation of the main clock on the presence of a special adjustment line or on the RundfunkstiUe to make dependent. The invention concerns a device for the remote correction of clock installations by wirelessly transferred Zeitsignale, which consist of a combination of sequential partial signals of certain length and/or WeUenlänge, whereby a number of slave clocks is propelled by Stromstöfle, which are released by a Kontaktwerk steered by a main clock. The invention consists of that the receiver furnished for the receipt of clay-frequently modulated high frequency signals affects the Kontaktwerk under inserting a checking device, which implements with correct consequence of the partial signals and the breaks of the Signalkombinaüon lying between them a number of switching steps and only after going through all of these switching steps an adjustment of the Kontaktwerkes to the correction “5 of the clock course permits. , Zeitsignale, which deviate from the certain signal combination substantially, are thus prevented by such a checking device on the course of the plant and/or its adjustment an influence to exercise. For the invention the mechanism of the receiver is furthermore substantial to the receipt of clay-frequently modulated high frequency signals. Hiebei is filtered off and/or sifted out the necessary audio frequency e.g. that one of the standard tuning tone, A”, by a band filter or a Frequenzrelais. In the design the invention article is for example represented. Show: Fig. 1 schemaUsch an opinion, Fig. 2 a Variame to Fig. 1, Fig. 3 a detail of the cause, Fig. 4 shearing a Frequenzrelais, the Fig. 5 and 6 in the sketch and/or on average after the line A--A of the Fig. 5 a further execution form of the rigging device and Fig. 7 the diagram of a Zeitsignals. The plant is stopped by a wirelessly sent Zeitsignal, that from a certain combination of single signals and/or. Tones exists, e.g. after Fig. 7 from four short signals i1 and a longer signal i2 with inserted short breaks p. The main clock after Fig. 1 possesses a receiver 39, a slave clock S, a checking device K for the monitoring of the length of the single signals and breaks as well as a Kontaktwerk U with electrical elevator, serving furnished for the receipt of the clay-frequently modulated high frequency signals, as time switch. The Kontaktwerk U steered by the main clock possesses one in such a way to a.c. mains 94, 95 attached Ferrari engine 1, which fastened by means of a Redukfionsgetriebes with on the feather/spring axle the 3b feather-live-hurries 2 in connection is located. An actually well-known arrangement for the delimitation of the spring tension consists sitting Schaltsfiff 105 of a Geneva disk 3, one on the axle 3 b fastened disk 3 A with beginning out of round and one in the disk 3 A. The Geneva disk the 3 possesses a ausgefiillte gap 3 ', is swivelling at a 9o on the axle 3 b loosely sitting feather-live-hurries 2 ' eccentrically to this axle stored and co-operates with the pin 105, which intervenes with the elevator with each revolution of the feather/spring house part of 2 in another of the cuts of the Malteser-95 of cross 3, until it *Priorität in the place 3 ' ange the registration in Czechoslovakia stressed from 27 September 1945. will hold. When running off the feather/spring the pin remains stiil and turns the Gehäuseteil 2 ' including the cross 3. in this way becomes both drawing up, and easing the feather/spring s on five Umdrelmngen of the feather/spring living hurry 2, 2 ' limits. As protection against return of the Gehäuseteiles a Sperrad 4, which is stored at any link of the reduction transmission and co-operates with a springy pawl 5, serves 2 in case of a St_tomunterbrechung. The second Gehäuseteil 2 ' propels a spur wheel 6, on its axle an arm 106 ' with a planetray gear 106 one from bevel gears 106, 6 ', 6 of " existing planetary gear is fastened. The rear bevel gear 6 ' propels the front bevel gear G over a Ubersetzungsgetriebe a retard mechanism 7, " propels over a transmission a Noekenscheibe 26 and an advertisement eating Rome brake 23, 24, if a blocking lever permits 13 this. Furthermore a gear wheel 8 is turned, which stands by a eingezeiehnete slipper clutch with a cause in connection, by two by three pins 8 A firmly connected, at the extent disks g and 10 provided with ever three against each other transferred notches with one another is formed for which. These notches are arranged with regular division, whereby the notches of the disk 9 are transferred by half of this division opposite the notches of the disk 10. The number of notches of both disks must form a straight number, which is divided equal the quotient of the number by the number of revolutions of the cause g, per hour. In the available case generally speaking six notches are intended, whereby the speed ratios are so selected that the cause is turned ten times per hour. Two mentioned Spe=klinken 11, 12 co-operating with the notches have one attack surface each, which alternating with ever and ever pins of a double-armed, the movement of the cam disk 26 of steering anchor 13 fastened rising up from two in opposite directions to an arm in interference to arrive in such a manner that the anchor 13 by the pin rising up forward by means of the pawl 12 is blocked, as long as the handle 11 and/or 12 did not break in into a notch of the disk 9 and/or 10. In order to avoid that the effect of the s0 exact division of the notches not e.g. by an inaccuracy in the production of the pawls illusorily, are in such a way implemented these that their catching is changeable into the appropriate notches both in the sense of leading, and staying. After Fig. the pawl 11 and/or 12 is ever linked 3 at a double-armed Winkelhebe114 and/or 15, which is tiltable stored at a common stationary axle 16. Its senkrechten Schenke1 are pressed by one Druckfeäer each 19 and/or 20 against set screws 17 and/or 18. By tightening or detaching these screws thus the bell cranks can be verstelien and to be lifted or lowered thus by the 2 m l R. 119ZlJ the feathers/springs 21 and/or 22 pawls 11 and/or I2 in interference with the notches, until the desired accuracy of their Einsclmappens is obtained. The actual Kontaktwerk for the drive of the slave clocks consists 26 and two Kontakffedersätzen 27, 28 of the two-cam disk connected firmly with a gear wheel 25. The disk 26 can also against the representation in Fig. 1 with the anchor 13 on a common axle sit. With the cause 9, 10 a Einstellvorriehtung co-operates, which exhibits two levers 29, 80, which swivelling stored and by gear wheel segments in interference with one another is coupled with one another. The bell crank 29 is operated against a Rückso getting feather/spring 104 by a Elektromagueten 31. As a check of the numerical data a slave clock S is arranged in the main clock, which is provided with a polarized magnetic system with swivelling anchor 32 and an adjustable switching mechanism. This exhibits a gear wheel 33 connected firmly with the axle of the Minutenzeigers, that over a gear two cams 34, and a locking disk 36 operates. By the 9o cam 24 is affected a contact 27, and by the cam 36 and the locking disk 36 a contact 38. This slave clock S puts the 95 clamps N shortly before the arrival of the Zeitsignals over the contacts 37, 38--N of the wireless receiver 39 to the net 94, 95. A relay 40 of the receiver 39 closes the contact 41, as soon as into by an appropriate filter flows co-ordinated load circuit of the amplifier a river of the frequency ioo the Zeksignals. In place of the relay and the filter also a Frequenzrelais can after Fig. 4 to be used. This possesses a Stimmgabei 42, which is affected of electromagnets 43, whose coil lies in the Aus-105 gangskteis the amplifier of the receiver 39, and furthermore a permanent magnet 44 provided with a Wicldung. If the Wicldung stands the electromagnets the 43 under a river, whose frequency corresponds to the natural frequency of the 21o selected tuning fork, then this is shifted in oscillation and in the coil of the permanent magnet 44 a strengthened river of same frequency is induced. This strengthened river and/or by Il5 the latches of the contact 41 (Fig. 1) obtained river sets the checking device K in activity. This consists K2 of two partial mechanisms Kz u.nd, of which the one mechanism 7 (71 for the Uberwachung of the four short single signals is and for turning the other mechanism K2 on serves 12o, which accomplishes the Überwachtmg of the long signal i2. The checking device Kz points in accordance with Fig. 1 a swivelling Sperrad 45 with two toothed quadrants 1 -5 45a, 45b and a thumb 46 up. The thumb supports itself in the represented resting position of the Rades 45 under Wizkung of a feather/spring 48 by the pin 47 and can close a contact 49 with appropriate excursion. With the toothed quadrant 45 A a pawl 50 co-operates, which sits tiltable at a segment 51 swivelling on the axle of the Rades 45 and is brought by a feather/spring 50 A in interference with the Zahnsegtnent 45 A. This pawl is in such a manner trained and stored that in the represented resting position of the segment 51 lo its interference with the toothed quadrant 45a is obligatorily interrupted by a pin 52. With the toothed quadrant 45 b a pawl 53 co-operates, and zw. dependent on a Winkelhebe154, which is swivelled by a Elekt_romagneten 56 against the effect of a feather/spring 55, as soon as by its coil river flows. The Sperrldinke 53 becomes free thereby and puts under the influence of a leaf spring 53 A against the Sperrad 45. Dropping the bell crank 54 of electromagnets 56 is retarded after switching the river off in actually well-known way by a short circuit coil part around a pre-determined length of time. The segment 51 can decay under the effect of a feather/spring 57 in the clockwise direction, whereby a projection/lead 58 of this segment opens the contact 59. The speed of the segment is regulated by means of a wind wing 60, which is propelled under translation in fast by an o teeth 51 A of the segment 51. Into the step-up gear a not drawn in, in such a manner on one side working clutch is switched on that the braking action of the wind wing affects itself only with the movement 5 in the course direction of the feather/spring 57, while the return motion takes place without brakes via a feather/spring 62 angreif'ende at a hooking lever 61, as soon as this of 63 is released to electromagnets. In the resting position the segment 51 by the feather/spring 62 over the lever 61 against the pin 52 is pressed. The second checking device K2 exhibits a tiltable segment 64, which is provided with a beginning 65 for a pawl 73 and with a braking wind wing 66 under translation in fast propelling teeth the 64a, whereby also this wind wing, like during the checking device K1, comes only into a direction of rotation of the segment 64 to the effect. A retaining lever 67 keeps the segment 64 pressed under the effect of a feather/spring 68 against the course of a feather/spring 69 in its initial position against the pin 75. Against the lower surface of the lever 67 an arm of the double-armed lever 71 rests, to that the pawl 73 against a feather/spring 73 A in Fig under effect of a back drawing feather/spring 72 a. 1 represented situation holds, in which the handle 73 keeps the contact 74 open. o the descriptive testing device K can by a device K' in accordance with Fig. 2 to be replaced, which possesses likewise two checking devices K'1 and K'2, from which the first on the partial signals i1, i2 of the signal combination addresses, while the latter only their overall length under addition of the individual breaks supervises. The first checking device K'I exhibits a tiltable, segment 76 with in the descriptive way a on one side braking wind wing 78, standing under the course of the feather/spring 77. At the segment 76 is electrically isolates a smaller segment 79 linked, whose situation is ascertainable adjustable and by a set screw 80. The segment 79 73 is provided on a part of its edge with two electrically isolating surfaces 81, 82, between which an electrically leading part remains. With the segment two brushes 84, 83 co-operate. A retaining lever 85 keeps the segment 76 pressed in slightly in its initial position by the pin 87 under the influence of the feather/spring 86, if the lever 85 by the Elektromagueten 88 is approved. The second checking device K'2 of the Fig. 2 is essentially similar to that one after Fig. 1 trained, whereby for the agreeing parts same reference symbols are used. Different it is only that the checking device K'2 is adjusted 90 to another length of time, i.e. that the turnings of their Scgments 64 are more effectively braked. For this reason also the wind wing 66 can be replaced by a more efficient Bremsvorrichmng, e.g. by an eddy current brake od. such. A relay 89, whose immediately addresses 91 anchors 90 co-operating with the make contact, possesses furthermore 95 the checking device K', as soon as the relay coil of the river flowed through, while its dropping is electrically retarded due to a 2oo of briefly closed coil part around a pre-determined length of time. The clamps 92, 93 (Fig. 1 and 2) is attached to a battery, during at the clamps g6, 97 (Fig. 1) further Nebenuhrenl05 is attached. The impact of the mechanism after Fig. 1 is the following: Of continuously the Ferrari engine I attached at a.c. mains 94, 95 aufgezogenello feather/spring in the spring assemblies 2, 2 ' on the one hand the retard mechanism of the clock and on the other hand the device drive to sending the electrical signals to the slave clocks by means of the planetary gear 106, 6 ', 6 ". The cause 9, 10 turns l in clockwise direction. The pawls 11 and/or 12 break in alternating in temporally same, here in minntlichen time intervals into the associated cuts of the disks 9 and/or 18. If e.g. the pawl 12 into a cut 2C of the disk 10 catches, then the double-armed anchor 13 is released and with a speed, which is given to 23, 24 by the effect of the Bremsvortichtung, 180 °. It encounters then with a pin the end of the 125 pawl 11 (S. position in Fig. 1) and the anchor 13 is stopped so long, until this pawl catches into the next cut of the R. l HZu disk 9” on which the similar procedure takes place, with which however the lever 12 as attack works. The descriptive Täügkeit constantly repeats itself. The two-thumb disk 26 is turned by means of the gear wheel 25 as a function of the movement of the anchor 13. It affects alternating the two Umschalt_kontakte 27, 28, and zw. in such a manner that during a half Umio turn the contact concerned is betäügt twice one behind the other. In this way the contact mechanism sends 25--28 over the 07 lines to the slave clocks (including the slave clock S) switched on in the main clock each minute except the normal drive impulse still another equivalent reserve impulse, attached at the clamps 96. This circumstance is important, if slave clocks with a device find for Zeiteinstellung after the Swiss patent specification No. 253521 use. From represented switching shears it is clear that the polarity of the sent impulses is changed alternating each minute. The direction excited, polarized electromagnet of the inserted slave clock S changing in same minutlichen time intervals with impulses turns the anchor 32 and this the wave of the Minutenzeigers and on these anfgekeilte gear wheel 33, which with appropriate Ubersetzungen the two, with which cams shifts 34, firmly connected gear wheels and the locking disk 36 in turn. The translations are in such a manner selected that the cams 34, 35 are turned once in the hour, while the locking disk 3ö implements a revolution once in 24 hours. (The connections 32, 33 and 33, 36 are not drawn for the Übersetzungsverhäknis accordingly.) It faces from there the cut of the cam once per hour the trip pin of the contact 38 and just as also the cut of the cam 34 the Schaltstifr of the contact 37. While the pin of the contact 37 catches with 4 each revolution of the cam 34 in its cut and interrupts the electric circuit, the pin of the contact becomes 38 in its situation in accordance with Fig. 1 by the locking disk 36 held back and is permitted its catching into the cut lqockens even if the cut of the disk 36 faces the pin at the same time. In the case of the selected translations this attitude comes off once in 24 hours, whereby the Speisestromkreis of the receiver 39 is closed. The situation of the cam 34 is adjustable and its cut can be placed in such a manner that the contact 37 e.g. by four minutes later than the contact 38 is affected. Are there the contacts 37, 38 switched into row, the electric circuit closed of the contact 38 at expiration of the adjusted length of time by the contact 37 are thus interrupted. During arrangement of several Einschnitre in the disk 36 the switching mechanism of the slave clocks can the appropriate electric circuit also several times per day close and thus for several transmissions of the Zeitsignals for adjustment the main clock on exact time be furnished. It is clear that closing and/or opening the contacts 38 and/or 37 takes place augenblickllch and independently of the upward gradient of the cam approach surface. Into and by the descriptive time switch S receiver 39 set attached to the Wechseistromnetzklemmen 94, 95 over the contacts 37, 38 in activity the relay 40 is excited, as soon as aa the entrance restraining A, E a sufficient tension of the frequency of the expected signal arises. Latches of the contact 41 the coil the electromagnets the 63 in clocks of the Zeitsignals with the positive clamp 92 in connection is through in such a way set, whereby the other end of these Wicldung is directly to the negative clamp 93 s of the d.c. supply attached. At the same time by contact 41 also the Elekttomagnet 56 is set under river, whose coil at the other end with the clamp 93 over the contact 59 stands in connection. The Elektro90 magnet 63 tightens the lever 61, on which the segment 51 under effect of the tension spring 57, released thereby, turns. Catches from the pin 52 replaced the pawl 50 by the spring action into teeth 45 A 9 Sperrades 45, which carry the handle forward 50 in the direction of the movement of the segment 51. The electromagnet 56 tightens the bell crank 54, whose releases an arm the pawl 53, which leans by Federdruck1°° against the edge of the Sperrades 45. By the first partial signal of the signal combination the segment 51 turns the Sperrad in the descriptive way 45 at an angle that approximately the Zahnlo5 division increased around a third corresponds. At the end of the first partial signal the contact 41 interrupts the electric circuit. The lever 61 drops under effect of the feather/spring 62 and returns immediately the segment 51 into its initial position. The NO Sperrldinke 50 by support to the pin 52 except interference with the teeth 45a of the ratchet wheel 45, which is held in its situation shifted a tooth by the caught pawl 53, comes. The electric circuit the electromagnets the 56 agreeing with that electromagnets 63 was interrupted, however short circuit Wicldungsteil does not let the lever 54 be to drop so long and the pawl 53 except interference not arrive, 12o so long the normal break between the individual partial signals lasts. From the receiver 39 a further partial signal is thus already received, before the pawl 53 wants to arrive to 2 Sperrades by effect of the lever 54 except interference with the teeth 45. The relay closes from there for the second time the contact 41 and the descriptive procedure repeats itself. After receipt of the four short partial signals including the breaks present between them the Sperrad 46 rotated " around four teeth and a situation taken” in more softly the thumb 46 in direct proximity of the contact 49 is. Now from the receiver 39 the last, long partial signal is received. Of the electromagnets by recent closing of the contact 41 excited lo Kontrolleinriclitung steps into activity, the pawl 50 substitutes into the last tooth of the ratchet wheel 45. Already by partial turning of the same the thumb 46 the contact 49 scblieaßt. Since the last TeiMgnal is long and the E1ektromagnet is excited 63 during the whole duration of the same, the segment 51 continues its turn until it knocks against of electromagnets 63 tightened levers 61. In this situation the projection/lead 58 opens the contact 59 and interrupts thereby the electric circuit the electromagnets the 56. After stopping the effect of the short circuit coil part the lever 54 drops by the effect of the feather/spring 55 and its downward arranged arm brings a5 pawl 53 except interference with the teeth 45 b of the Sperrades 45. This procedure finds instead of” before the last partial signal stops, so that thus in dessem further process the Sperrad 45 no more on the pawl 53 is coupled dependent, but only by the pawl 50 with the swung out segment 51. It returns from there with this under the effect of the feather/spring 48 to its rest position specified by the pin 47, as soon as the last partial signal is terminated. By mentioned latches of the contact 49 an end of the coil the electromagnets 70 to the clamp 93 was attached, while the other end of the coil o is directly to the clamp 92 attached. In excited condition the electromagnet tightens the lever 67, which releases the segment 64 standing under the influence of the tension spring 69. The lever 67 swivels the double-armed lever 71. The pawl 73 become free thereby sets itself by spring pressure on the range of the cylindrical part of the segment 64. The rotating speed of this segment is regular by the braking action of the wind wing 66. After! outer 'entsprechendeu of the length of time arrives the beginning 65 of the segment 64 over the Sperrldinke 73, which catches under the effect of the feather/spring 73 A and releases thus the pin of the contact 74. Thus the contact is closed and an end of the electromagnet coil 31 to the clamp 92 is attached. The other end of this coil is directly attached to the clamp 93. The excitation the electromagnets the 31 takes place directly before the completion of the last partial signal. The segment 64 continues from there its turn still another one instant, during which electromagnet 31 adjusts the cause 9, 10 as follows: With Erregtmg the electromagnets of the M the bell crank 29 is swung at the same time” and by means of the toothed quadrants also the lever $0 in the opposite direction. One pushes the lever one of the pins 8 A and thus the disk 9, 10 situation corresponding into one the exact time. If the clock follows, then the pin is in the Wirktmgsbereich of the lever if the clockwork proceeds, then the pin is in the motion travel of the bell crank 29. Since the disks 9, 10 would drive a revolution out in six minutes and three attitude pins 8a are present” so can the attitude of the cause each second, e.g. each straight minute take place. Course differences of plus until minus 50 seconds can become balanced, so which even with an inaccurate clockwork is sufficient. In order not to disturb the course of the retard mechanism, it is appropriate to plan before the cause 9, 10 one by one appropriately friction clutch operated of electromagnets 31 those for example in the Fig. 5 and 6 is represented. The levers 29, 30 replaced by an anchor 98 are, which turns between the Poland the electromagnets the 31 and on a wave 99 sits 9o on the one disengaging disk 100 is adjustable. This is pressed by a feather/spring 103 102 situation one on the other-oppressive into the clutch disks 101. The clutch disk 102 is pinned with the wave 99, the 95 disk 101 on this loose touched down and with the part 6 ' (Fig. 1) in drive connection. The wave 99 carries furthermore (not represented) the cause 9, this clutch works as follows: With the lo0 responding the electromagnets the 31 the Ausriickscheibe 100 against the poles pulled, whereby the wave becomes freely swivelling 99, during the anchors 98 and thus the parts of 99, 100, 102 and the cause 9, 10 into the time-correct situation einlo5 will be placed. After disconnection of the magnet 31 the clutch disk 101 by the feather/spring 103 is pressed in slightly the clutch disk 102 and the AusIöser thereby with its drive is coupled. 11o after completion of the entire signal combination interrupts the relay 40 by opening the contact 41 the electric circuit the electromagnets the 65 and the segment the 51 returns to its initial position. Thus the Kon LV clock 59 is closed, however without influence the electromagnets the 56, since its electric circuit ready by the contact 41 is interrupted. The Sperrad 45, which is not no more affected by the pawl 53, follows the feather/spring 48 of the return motion of the segment 51 under effect 120, until it is stopped in its rest position by the pin 47. It interrupts the contact 49, which opens the electric circuit the electromagnets. The 125 levers 67 taken off by the feather/spring 68 releases the double-armed lever 71, which decays under effect of the feather/spring 72 the counterclockwise. It pushes those -- 6 -- No. 179Z 3 Sperrkllnke 73 against the trip pin of the contact 74” opens these and interrupts the electric circuit the electromagnets the 31. Since the Sperrkllnke 73 releases the beginning 65 of the segment 64, the segment without braking returns by the WiudflügeI 66 to its rest position and puts against the pin 75. The checking device K, whose task is thus fulfilled, is now ready for the receipt of a further Zeitsignals. It is clear that during disregard of the prescribed normal duration of everyone the short Teflsignale /1 the regulation of the main clock can take place next. If a Teilsignal/1 is too short, then the necessary shift of the Sperrades 45 is missing, the SperrkFmke 53 can not substitute and the ratchet wheel 45 will return in the break p to the preceding situation. If one of the partial signals /1 is too long, then the projection/lead 58 interrupts the electric circuit of the Elekrromagneten 56, whereby the interference of the Sperrldinke 53 is waived into the teeth of the Sperrades 45. The latter returns thus likewise to the original situation. The same procedure also enters, if the normal duration of one of the breaks p is exceeded. On the other hand this break must be so long p that the parts of 61, 51, 58 into its rest position to arrive to be able. If the last TeilsignaI i is too short, then the second I close ontrolleimächtung K the contact 74 not, so that no course correction takes place. The descriptive arrangement works however in any case still correctly at deviations in the duration of the individual Teilsiguale and breaks up to about plus minus 3%. The Kontrolleiurichtung K' (Fig. 2) works as follows: The relay 89 and the electromagnet 88 are switched on into the electric circuit betäügten by the contact 41. They are excited from there as a function of the received signal and to work as follows: Sobaid of the Hebel85 of electromagnets 88 tightened is made possible and thus swinging the segment out for 76, steps also the relay 89 into Täügkeit, which closes the contact 91 by tightening the anchor 90. The electromagnet starts the device K'2, whose Wirktmgsweise comes out from managing. Some the difference lies only that the adjusted duration dcr turning of the segment 64 during the arrangement after Fig. corresponds to 2 of the overall length of the expected Zeitsignals with addition of the individual breaks, while the adjusted length with the Vors5 direction in accordance with Fig. 1 only the length of the last partial signal corresponds. Under the condition of the receipt of the expected signal the first partial signal enters prescribed length of time a break at expiration ffir. The electric circuit the electromagnets the 88 is interrupted, the lever 85 drops under the effect of the feather/spring 86 and brings the segment 76 at the pin 87 to the plant, before the brushes 83, 84 are leading interconnected. Also the electric circuit of the relay 89 is interrupted at the same time. Its anchor 90 remains however under effect of the short circuit coil part of the relay 89 attractive, the soferne duration of the break is not too long. In this way of electromagnets 70 befügte checking device K'2 adds the individual impulses and breaks of the Zeitsignals, while to of electromagnets 88 operated KontroUeiurichtung K'I the segment 76 returns to Beendigtmg of each individual Teil-75 of signal to the initial position. Only with the long last TeilsiguaI of the signal combination the segment 79 achieves the effective situation by its turning, in which the leading part of the segment 79 connects in such a way the two for brushes 83, 84 electrically. Connecting the brushes takes place before the completion of the last partial signal, i.e. at a time, where the segment 64 with a beginning 65 behind the pawl 73 was swivelled, which closed the contact 74 by catching. In this instant the electric circuit the attitude electromagnets the 31 is closed. It is clear that also the mechanism after Fig. 2 reliably the regulation of the main clock durch-90 leads, if it the prescribed signal according to Fig. 7 receives.