Para metro arrangement for ausfiehrung logical operations and process for their preparation

摘要

1,199,755. Parametric devices. TDK ELECTRONICS CO. Ltd. 9 Aug., 1967 [13 Aug. 1966 (2)], No. 36620/67. Heading H3B. A parametron is formed by the combination of an open-ended coil 2, Fig. 1, and its distributed inter-turn capacitance, the coil being wound on a conductor 1 coated with a magnetic film and inductively coupled with an input coil 3 and an output coil 4 formed on printed circuit boards 5. A three-stage logic circuit is shown, the A.C. excitation current being biased and applied cyclically and in turn to the conductors I of the three stages I to III. Several spaced open-ended coils 2 may be wound on the same magnetic conductor. The output coil 4 serves as a shield ring which prevents disturbance by external signals, and where a plurality of open-ended coils 2 are arranged in a single conductor, ferromagnetic end plates 7, Fig. 7A, may be provided to prevent interference between adjacent coils. Additionally ferromagnetic guard plates may be provided, Fig. 16A (not shown). A three-dimentional logic circuit is described in which ferromagnetic sheets 7, Fig. 8A, have alternate large and small apertures 9, 10. Each plate serves alternately as guard plates and end plates in the direction of stage progression, the wound conductors 1 being alternately offset to provide the required orientation between the apertures and the open-ended coils 2. A constructional detail is shown in Fig. 9 in which conductive rods 11 are coated with an electrodeposited layer of nickel permalloy, and the open-ended coils 13 are wound on a celluloid tube. The output and input coils are carried on printed circuit boards 16 which are assembled into a sandwich structure with apertured ferromagnetic plates 15 and spacers 17. A three-dimensional logic circuit is assembled by threading ferromagnetic plates 14, 15, the printed circuit boards 16 and the spacers 17 on a matrix of vertical alignment rods 19, the assembly being bonded together by heating a previously-applied thermoplastic, the rods 19 being removed. The magnetic film coated wires with their celluloid liners are then inserted through apertures in the structure, and are connected to terminal plates, Fig. 12 (not shown), the plates and wires being then covered with an insulating solidifying solution. The Specification discloses two constructional modifications, Figs. 13 and 14 (not shown), in which a stack of celluloid tubes is used with each magnetically coated wire.