US1797711A - Long-distance signaling device working with current-impulse combination - Google Patents

Description

March 24, 1931. RA BORNSCHElN 1,797,711

- LONG DISTANCE SIGNALING DEVICE WORKING WITH CURRENT IMPULSE COMBINATION Filed March 21, 1929 2 Sheets-Sheet l March 1931- R. BORNSCHEIN 1,797,711

LONG DISTANCE SIGNALING DEVICE WORKING WITH CURRENT IMPULSE COMBINATION Filed March 21, 1929 2 Sheets-Sheet 2 1 h/vEvVTO I? R02: 01. P140 IBORNSCI-(EIN Patented Mar. 24, T1931 i STAT MWQZH RODOLPHO BORNSCHEIN, OF BERLIN, GERMANY, ASSIGNOR T0 SIEMENS & HALSKE,

AKTIENGESELLSCHAFT, 0E SIEMENSSTADT, NEAR BERLIN, GERMANY, A CORPORA- TION 0F GERMANY LONG-DISTANCE SIGNALING DEVICE WORKING WITH CURRENT-IMPULSE GOMBINATION Application filed March 21, 1929, Serial No. 348,690, and in Germany March 24, 1928.

With long distance signaling devices, in particular telegraph printing apparatuses, which for example work according to the five unit alphabet, each sign receives, as is known,

its special character by a certain sequence of the five separate current impulses which may have a direction of positive or negative polarity and their strength according to current or no current impulse. The number of different combinations thereby attainable is equal to the fifth power of the number of the combination possibilities which may be obtained with one current unit, that is, 2 32. With a telegraph printingapparatus it may now happen, that the number of the combinations which are required to effect all the operations of the telegraph printing apparatus, is greater than the number of combi nations actually available.

According to the invention, for the purpose of effecting a larger number of processes, one and the same combination is used for effecting several processes. Preferably similar processes or those very nearly related are grouped together in this way.

Certain combinations, which effect processes other than the printing, or also even letter combinations in multiple repetition may be used. l/Vith such letter or number combinations the arrangement is preferably so made that a repetition of the same sign taking place in the writing does not then affect any other process, but only with the second or further repetition.

The invention is explained in the follow-- ing in a form of construction applied as an example to a telegraph printing apparatus for page printing. With this printing telegraph the receiving printing drum must, after it has been moved forward by one step after the printing of each character and has thus reached a definite end position, be again brought back to its original position. This return must, however, be efiected by the sender, that is, he must control some release means which effect the return of the printing drum to its normal position. Furthermore, there must be with such apparatuses the possibility of the receiver obtaining the transmitted sign not only on the printed sheet but also point of time or up to What point of time a perforated strip reception is to be employed.

These three processes, the release of the return mechanism for the printing drum, and the switching in and the switching out of the automatic perforation receiver are, according to the present invention, efiected by one and the same selector rod separated by the selector apparatus, that is, by one and the same combination. With one transmission of this combination only the return of the printing drum is effected; with the immediate repeat transmission of the combination, first the return of the printing drum is effected, and then the contact for the automatic perfora tion receiver is closed; and with a triple transmission, first the printing drum return movement is again effected and with the third transmission the switching off of the perforation receiver is effected. The actuation of the printing drum return movement with all three of the processes just described is preferable and. advantageous because the automatic perforation receiver will never be switchedon in the middle of a sentence or a line but always at the beginning of the line and a fresh line will always be begun after the switching off.

In the form of construction shown, Figure 1 represents aside View of the'whole arrangement, Figure 2 is a front View of the part of the lever on the line a, a of Figure 1. Figure 3 is a top view of the arrangement omitting the underneath lever, etc., Figures 4 and 5 are top views of the upper and lower toothed racks respectively, shown together only with the parts connected therewith, on the lines c, 0 or d, d respectively of Figure 1 Figure 6 is a section. through Figure 1 on the line 6, c. Figure 7 shows the position of the rods 36, as also of the lever 42 with the single actuation of the whole lever system. Figure 8 shows the position of the. rod 36 as well as of the lever 42 with duplicate actuation of the whole lever system,itbeing there assumed,that the printing mechanism 6 has already made a further outward movement for the purpose of printing off some other sign.

Figure 9 shows the same lever system after triplicate actuation, and here the printing mechanism 6 is taken as in its downward -movement.

In Figure 1, 1 are the selector bars shown in section forming the selector apparatus, which with a certain combination allows the selector rods 3 carried pivoted at the point 2 to fall into their slots 4, at this position situated one immediately over the other, as

. shown by the dotted position 5. 6 is the selector rod 3. A spring printing mechanism also shown in section which is driven by a coupling released by the receiving control member and is connected with the driving shaft, and which makes a movement upwards and downwards respectively. From the lever 7 which is pivoted at 8 is suspended, by the pin 9, the lever 10 which, by means of the spiral spring 13 engaging on the projection 11 of the lever 10 and attached to the selector rod 3 at the point 12, is drawn with its surface 14 against the projection 15 of the selector rod 3. The lever 10 also rests in the normal position with its lower edge 16 of the projection 11 on the upper edge 17 of the projection 15 of the 10 engages in the lower end of the lever 10 and draws this back into its initial position.

From the lever 7 is furthermore suspended by the pin 18 the lever 19, which by means of a bell crank lever 20, supported at the point 21, transmits its movement to the rod 22. This rod 22 is again in connection with the release of the couplin (not shown) for the return movement of the printing drum, which thus with dropped selector rod 3, by means of the projection 23 of the lever 10, now brought in the path of the printing mechanism 6, is released on an upward movement of the printing mechanism 6.

From a third eye 24 of the lever 7 are suspended two further rods 25 and 25 (Figure 2), which differ from each other in that the one 25, which is the front one in Figure 1 i and the left one in Figure 2 encloses within a longitudinal slot 26 the suspension pin of the eye 24, while the other rod 25 has a side recess 27 at the end of the slot 26. This second rod 25 is furthermore drawn continuously to the left bymeans of a spring 30 attached to the holes 28 and 29 respectively of thelever 19 and of the rod 25, so that on the upward sliding of the rods 25, 25 in their guide slots 26 the one 25 can again fall directly downwards while the other remains suspended caught by the notch 27. Two levers 33 rotatable about the eye 32 of the lever 19 engage in. the eyes 31 at the lower end of the rod 25 and have at their other ends a projection 34 directed downwards. To the two rojections 35 of the rods 25 two rods 36 are astened which are carried at their free ends in arail 37. This guide rail 37 is displaceable sideways and, according to its position brings either the left or the right or neither of the two rods 36 (Figure 2) in the path of bracket 38 attached to the printing mechanism 6 and moving upwards and downwards therewith. The guide rail 37 guides the lever 42which is pivoted at41andprojects through a slot 40 in the bracket 39 so that with a suitable position of the guide rail 37 the slot 40, that is, the lever 42 is brought in the path of the bracket 38 of the printing mechanism 6.

By means of a pawl 44 fixed on the projection 43 of the coupling releasing rod 22 the rack 45 is, on the backward and forward motion of the projection 43, moved forward each time by one tooth. A locking catch 46 drops into the teeth of the rack 45 and pre- Vents a dropping back into the initial position which would be produced by the action of a spring 47 (Figure 5) arranged at the side. The two pawls 46 and 44 are associated with oppositely directed projections 48 and can be brought out of engagement with the teeth of the rack 45 (Figure 6) by means of an arm 49, whereupon the rack 45 is then brought back into its initial position by the spring 47. The rack 45 carries, on a side projection 50, a pawl 51, which itself engages in a second rack 52 (Figure 4), which latter 'ward of the ,rack by one tooth, is brought close in front of the slide piece 58of the contract spring 59. By the movement forward of the rack 52 by two teeth, the contact points 60 are brought into contact, and thus close the current circuit of the automatic perforation receiver. A mechanical perforator can of course also be connected instead of the electrical one described. On moving the rack 52 forward bythree teeth, the contact remains closed, as the slide piece 58 runs over the nose piece 57.

The other end of the rack 52 is connected by means of a bell crank lever 62, engaging on the pin 61, and rotating about the point 63, and engaging at the other end on one side of a pin 64, with the guide bar 37, in such a manner, that on the forward movement of the rack 52 by one, two or three teeth, this guide bar 37 also moves by one, two or three teeth. If, for any-reason, the guide bar 37 is held fast on the backward movement of the rack 52, as, for instance, if the projection 38 of the printing mechanism 6 is engaged by one of the rods 36 or by the lever 42, and a return movement of the guide bar 37 to its'initial position is not possible, the rack 52 can nevertheless returnto its original position, as then the spring 65, which is fastened to one end of the angle lever 62 as well as to a pin 66 on the guide bar 37, is tensioned and operates, afterthe removal of the hindrance to the movement of the guide bar 37, to bring the latter back to its initial position.

Above the rack 52 are arranged two springs 67 and 68, side by side (Figures 1, 3 and 6) which are each firmly fixed at one end, while the other end is free and comes under the projection 34 of a lever 33. To the spring 68 is fastened the previously mentioned arm 49 which efl'ects the release of the pair of pawls 44, 46 and thus permits return movement of the rack to its initial position. To the spring 67 is fixed the arm 56, also previously mentioned, which eifects the release of the pair of pawls 51, 53 and thus permits the return of the rack 52 to its initial position. From the arm 56 a projection 69 extends past the spring 68, so that on pressing down the spring 68, only the lower rack 45, but on the pressing down of the spring 67, both racks 45 and 52, are moved back to their initial positions. From an extension 70 of the projection 69 of the arm 56 is suspended a further rod 71 which is connected at its lower end 72 with the already-mentioned lever 42 (Figure 1). j

The separate operations :now take place as follows :If the sign for the release of the lever system only is given, or received, once, when the lever 10, the lever 7 and the rods 19 and 25 connected thereto, the bell crank lever 20 and also the coupling release rod 22, only carry out once the movement assigned to them. The projections 34 of the levers 33 in this case do not move downwards, as the distances between'the projections 34 of the lever 33 and the pins 32 and 31 on the one hand, are equal to the distances between the pin 8 ofthe lever 7 from the pins 18 and 25 respectively and the distance of the pin 8 from the projection 34 is substantially equal to the distance, between pins 24 and 31 or 18 and 32.

On the movement-of the coupling release rod 22, the .pawl 44 fastened thereto carries with it the rack -45, and'this again, by means of the pawl 51- fixed thereto, carries the rack 52 one tooth forward. The contacts of the automatic perforation receiver are not yet closed, but by means ofthe-bell crank lever 62 the g'uide bar 37 and with itthe lever 42 and the rods -36 are brought intothe posi- Y tion shown in Figure 7. If on the next printing operation the same lever 10 is not again moved upwards, then this and with it all the rods connected therewith, remain stationary and the bracket 38 of the printing mechanism. 6 meets the lower end of the left hand rod 36 in Figure 2, or the front one in Figure 1, pushes this forward and thus raises the rod 25 and by the rocking of the front lever 33 in Figure 1, the projection 34 is pressed down on the spring 67. By the depression of the spring 67 both pairs of pawls 44, 46 and 51, 53 are released, and both racks return to their initial positions. By the return of the upper rack 52 the bell-crank lever 62 is also rotated back and the spring tensioned, as the guide bar 37 is held fast by the rod 36, that is, by the bracket 38, of the printing mechanism 6. Only after the bracket 38, in its renewed upward movement, has released the rod 36, does the guide bar 37 return to its initial position, bringing, however, the rod 36 also out of the path of the printing mechanism projection 38, so that now the whole of the lever system is in its initial position.

By actuating the lever 10 twice consecutively the racks 45 and 52 are again first moved forward in the manner already described and the guide bar 37 is also brought into the position of Figure 7. On the second actuation, however, the rod 36 does not come into engagement with the bracket 38, as then the whole lever system, including the rods 36, is moved. For the same reason the projection 34 of the lever 33, remains in its normal position and the racks 45 and 52 both move forward by a second tooth. The contact of the automatic perforation receiver is thus closed at the contact points 60. By means of the bell-crank lever 62 the guide bar 37 is furthermore brought into the position shown in Figure 8. In order to prevent, on a subsequent movement of the lever system, except for the purpose of release. the coupling from the printing drum return movement, the racks again make a step forward, on the next upward movement of the printing mechanism, that is, on the printing of any other sign, the right hand rod 36, now in the path of the projection 38, is raised by the projection 38; the lever 33 corresponding thereto rotates and forces the spring 68 downwards by its projection 34 (see Figure 3). The one pairrof pawls 44, 46 associated with thelower rack 45 are-thereby released and the rack 45 springs back into its initial position. The upper rack 52 and with it the guide bar 37 are kept stationary by the locking catch 53. By the upward movement of the said rod 36, and hence the rod 25, the

spring 30 draws the rod 25', to the left in mechanism 6 on the upward movement of the latter.

A stop 7 3 is arranged at the side above the rod 25 in such a manner that, when the pin 24 has engaged the recess 27 in the above described manner, the stop is directly above a small projection'74 on the rod 25 (Figure 8). If the whole lever system is moved upwards the projection 74 strikes against the stop 73, which is thereby forced to one side and the rod 25 can now return to its initial position after the bearing pin of the eye 24 of the lever 7 has passed out of the side recess 27 into the extended slot 26. The spring 68, however, and also the pair of pawls 44, 46 thereby return to their normal or engaged position and by means of the pawl 44 now dropped, the lower rack 45 is moved forward therewith by one step. The upper rack, and with it the guide bar 37, will not follow this step, as it has already been moved forward two steps and the pawl 51 slides over a smooth surface. Immediately on the following upward movement of the printing mechanism, bracket 38 is set for the purpose of effecting any other operation, the rod 36 (Figure 8) is also again raised, the pair of pawls 44, 46 are again released, the rack 45 springs back into its normal position and the lever 25 is suspended again in its recess 27. The rack '52 remains entirely uninfluenced by the whole of this movement.

If the contact of the automatic perforation receiver is to be broken, then the same sign is to be given three times directly one after the other. The contact 60 is closed, consequently the upper rack has been moved forward two teeth. On the first movement of the lever system the rod 26, by the striking of the projection 74 on the stop 73, and with the spring 68 and the pair of pawls 44,

46 is brought into its normal position, furthermore by the forward movement of the couplin release rod 22, the lower rack is moved forward one step. With the second actuation, the pair of pawls 44, 46 are not released by the lifting of the rod 25, as the whole systemmoves and consequently the projection 34 of the lever 33 remains stationary. The rack 45, on the other hand,

. moves forward by a second step and the pawl 51 connected therewith slides down from the surface of the rack 52 and engages in the teeth thereof. On the third actuation the rack 52 again takes part in the forward .movement, the contact 60 remains, however,

the projection 70, or 69, and the spring 67. Both pairs of pawls 44, 46 and 61, 53am thereupon released and both racks spring back to their initial position whereby the contact 60 for the automatic perforation receiver is interrupted.

By the return movement of the rack 52, in which the guide bar 37, owing tothe engagement of the bracket 38 on the lever 42, cannot at once partake, the spring 65 is tensioned. l Vith the next upward movement of the printing mechanism by which the lever 42 is freed from the projectiong38, this spring 65 draws the guide bar 37 into its original position and now all levers are again in the position as shown in FigureQ.

I claim 1. In an apparatus of the kind described, the combination of controlling mechanism adapted to be adjusted by electrical currents over a main conductor, means operable by said controlling mechanism and so arranged that only one thereof at a time is actuated by said controlling mechanism, and means operable to effect dilferent operations in said apparatus and operatively associated with said first-mentioned means in such manner that 2. In an apparatus of the kind described, i

the combination of controlling mechanism adapted to be adjusted by electrical currents over a main conductor, means operable by said controlling mechanism and so arranged that only one thereof at a time is actuated by said controlling mechanism, transfer mechanism controlled by said means, actuating mechanism for said transfer mechanism, and means operatively associated withsaid transfer mechanism to efiect different operations in said apparatus when the same one of the first mentioned means is actuated a different number of times by the controlling mechanism.

3. In an apparatus of the kind described, the combination of controlling mechanism adapted to be adjusted by electrical currents over a main conductor, means operable by said controlling mechanism and so arranged that only one thereof at a time is actuated by said controlling mechanism, and mechanism operatively associated with said means and movable step-by-step to effect different operations in said apparatus.

4. In an apparatus of the kind described, the combination of controlling mechanism adapted to be adjusted by electrical currents over a main conductor, means operable by said controlling mechanism and so arranged that only one thereof at a time is actuated by said controlling mechanism, and mechanism operatively associated with said means and movable step-by-step and operative,

upon advance by one step, to efiect return of a carriage, upon advance by two steps, to cut in a switch, and upon advance by three steps, to cut out such switch.

5. In an apparatus of the kind described,

the combination of controlling -mechanism adapted to be adjusted by electrical currents over a main conductor, means operable by said controlling mechanism and so arranged that only one thereof at a time is actuated by said controlling mechanism, a rack operatively associated with said means and adapted toed to be advanced step-by-step, a second rack A operatively associated with said first-mentioned rack, an advancing pawl and a hold- I ing pawl for each of said racks, and means associated with each of said racks and operable to release simultaneously the advancing and holding pawls thereof.

7. In an apparatus of the kind described, the combination of controlling mechanism adapted to be adjusted by electrical currents over a main conductor, means operable by said controlling mechanism and so arranged that only one thereof at a time is actuated by said controlling mechanism, a rack operatively associated with said means and adapted vto be advanced step-by-step, a second rack operatively associated with said first-mentioned rack, an advancing pawl and a holding pawl for each of said racks, means associated with each of said racks and operable torelease simultaneously the advancing and holding pawls thereof, an angle lever associated with said second rack, a control rod, a transfer pin arranged to be brought by said rod under the control of the actuating mechanism, and a lever co-operating with said pin for operating said releasing means.

In testlmony whereof I aflix my signature.

RODOLPHO BORNSOHEIN.

Images