Patent GB-920263-A (GB)
Title: Improvements in or relating to teleprinter apparatus
IPC: H04L12/18
Filed: 1959-12-30
Abstract: 920,263. Telegraph exchange systems. SIEMENS & HALSKE A.G. Dec. 30, 1959 [Dec. 30, 1958; Aug. 4, 1959 (2)], No. 44249/59. Class 40 (3). In an arrangement for routing teleprinter information selectively to one or more of a number of teleprinter receiving devices by control means responsive to a routing signal to direct the information to a selected number of the receiving devices, the allocation of the routing signal by which the selected number of receiving devices is rendered receptive or operative is made at or by said control means. In the diagrammatic control arrangement, Fig. 10, the control device St is associated with a control desk Bp provided with push - buttons, manually - controlled key switches and plugs for allocating the routing signals. A punched tape for a transmitter LS is prepared with preamble signals corresponding to letter-shift, carriage-return and line-feed followed by a routing signal comprising, for example, the blank (all-spacing) and, say, A indicating that the first message Am is to go to two printers or reperforators, for example, EL1, EL2. The programme tape continues with further routing combinations, e.g. the blank signal followed by B, and then blank followed by C, indicating that the two succeeding messages Bm, Cm are to go to, say, EL1 and EL3, and then EL4 respectively. Initially, the programme tape is stepped through the transmitter LS, and the signals detected pass to a punch-all perforator AL, and also to a teleprinter FS. The all-spacing signal operates a control circuit in St so that the subsequent signal passes to a detecting circuit with outputs corresponding to the various letters, and these outputs can be selectively connected by plugs, so that operating circuits for the desired receiving devices EL1 ... EL4 are made effective. The message for these devices is then transmitted from the teleprinter FS, and also passed to the universal punch device AL. As indicated in Fig. 1, the message denoted by Am may be routed to EL1, EL2. At the end of this message, a start key is again operated to bring in control by the programme transmitter LS, and the plugs associated with letter B are inserted to control transmission of the portion Bm of the message to EL1, EL3, and with this completed, the plugs associated with the letter C are inserted into sockets corresponding to the desired receiving devices, and the desk key operated so that the programme tape is again effective to sense the next routing signal blank, followed by C, so that the circuit St is set to pass the subsequent message Cm to, for example, receiving devices EL1, EL2. The programme control tape for the transmitter may be provided with functional signals to control the printing lay-out, e.g. columns, tabulation, in the various receiving devices. Detailed circuit operation, Figs. 2 to 7. To bring the circuits into operation a key T3b operates a relay K which locks up and prepares a circuit for relays C, D, controlling the operating magnet AM for the programme transmitter LS which via tape feeler contacts vK1a . . . vK5a and distributer contacts sk1 . . . sk5 and contact sk6 pass the code signal to relays S1 ... S5. For setting the programme transmitter into operation the key T1 is released and a key T1a is actuated so that relays C, D operate in succession and pass a pulse to the release magnet AM. The control shaft of the programme transmitter LS closes contact uk operating relay E switching in the magnet AMS of the teleprinter FS, and this relay interacts with a relay F so that the shaft of the teleprinter FS is stepped. The code combinations in the programme tape are normally sensed and passed through the teleprinter FS and also to relays 1 to 6 controlling contact I to VI in the circuits of the devices EL1 ... EL4, and the punch-all device AL. Initially contacts T6a ... T6d are closed so that the contacts I to IV are short-circuited. When the blank combination is detected a relay M, Fig. 2, is operated and at contact m3 the next signal is applied over contacts S12 ... S52 to relays CU1 ... CU9 of a " tree " form selecting circuit to pass a pulse over the output corresponding to the routing letter, e.g. A, operating a relay AA (not shown) having contacts aa1, aa2 and aa3 ... aa6, Fig. 7. Also a relay G operated by detection of the allblank signal via vk1b . . . vk5b operates contact g1 so that this signal and the route signal are passed solely to relay 6, contact VI and punch AL. By plug-and-socket connection the outlets aa3 ... are selectively connected to relays I... IV which, by means of contacts I<SP>2</SP>... 4<SP>2</SP>, are associated with the operating circuits of the receiving devices EL1 ... EL4. When the routing signal following the blank signal has been utilized, the control by the programme tape is disconnected by operation of relay J and opening of circuits of relays M, N, and the message from the teleprinter is passed by the contacts I... IV which are operatively associated with the receiving devices EL1 ... EL4, and also to the printer FS and to the punch all AL. When the message Am has been transmitted, the start key T2 is again operated, and the plug connection from the bb3 . . . bb6 contacts (not shown) linked with relays I ... IV associated with the receiving devices which are to receive the message. In an alternative manner of operation it is possible to use in the punched tape transmitter of the teleprinter FS the tape ALt which is produced in the " punch-all " device AL, the routing signals being operative to control the various sections of information to the desired receiving devices EL1 ... EL4 with the appropriate aa3 . . . aa6, not shown (bb3 ... bb6, cc3 ... cc6) contacts connected to the relays I... IV for selection of the desired devices EL1 to EL4. In this arrangement the complete punched tape from the punch-all AL with programme and messages is used, with minor connection modifications in the circuit, Figs. 2 to 7, since the information to be selectively sent to the receiving devices EL1 ... EL4 has already been completely recorded in the tape. Also, operation for arresting transmission to effect text correction is briefly described. In a further modification, Fig. 9 (not shown), which can be embodied in the arrangement, Figs. 2 to 7, the upper case characters, not shown (F. G. H), can be used for additional routing functions. Further circuit modifications, Figs. 11 to 14 (not shown), and Figs. 15, 16 (not shown), relate to the insertion or correction of information to be transmitted or safeguarding arrangements for the indication of incorrect preparation of the form of the information to be transmitted.