DE1221685B - Coordinate multiple switches using protective tube armature contacts for telecommunications, especially telephone dialing systems - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY GERMAN 4MTW> PATENTAMT Int. Cl .:

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German class: 21 a3- 22/10

Number: 1221685

File number: St 22588 VIII a / 21 a3

Filing date: August 25, 1964

Opening day: July 28, 1966

The invention relates to a coordinate multiple switch using protective tube anchor contacts for telecommunications, in particular telephone dialing systems.

In the known multiple coordinate switch arrangements, the lines of force run through the magnetizable housing and find a different magnetic for each contact to be switched Resistance. This has an unfavorable effect on the switching reliability. ίο

The invention is based on the technical problem, the magnetic resistance of the return path to lower the lines of force and to keep them constant for all contacts to be switched in order to do so to increase the switching reliability.

The invention is explained with reference to the drawings.

In Fig. 1, openwork or perforated base plates 1 and 2 made of magnetizable material are each provided with side plates 7 and 12 at the cross points. Row rails 3 are located between the two side plates 7 and column rails 4 are arranged between the side plates 12 at an angle to these. The rails are also provided with perforations corresponding to the perforations of the base plates 1 and 2.

The two ends of each rail are each provided with a coil. The two coils on each rail counteract each other. The coils 5 and 6 are located on each row rail 3, the coils 9 and 10 on each column rail 4.

When magnetized, the row rails 3 are polarized north, the column rails 4 are polarized south. At A protective tube anchor contact 8 is attached to each intersection.

While now in FIG. 1 the protective tube armature contacts 8 are only indicated, results from FIG. 2 their structure in detail.

This consists in a known manner of a leaf spring contact opened in a glass tube Made of easily magnetizable material, the working air gap between the base plates 1 and 2 is located.

A permanent magnet, e.g. B. in the form of a ring magnet 11, for holding a once closed by coincident excitation of its row coils 5 and 6 and its column coils 9 and 10 contact.

Opening a closed contact can, for. B. be done by counter magnetization.

Keeping a contact closed can using coordinate multiple switches
of protection tube anchor contacts for telecommunication,
in particular telephone systems

Applicant:

The State of the Netherlands,
ten deze vertegenwoordigd door de
directeur-generaal der Posterijen,
Telegrafie en Telefonie, The Hague

Representative:

Dr.-Ing. O. Stürner and Dr. F. Mayer,

Patent attorneys, Pforzheim, Julius-Naeher-Str. 13th

Named as inventor:
Herman van Wijk, Voorschoten;
Cornells van Willenswaard, Leidschendam
(Netherlands)

Claimed priority:

Netherlands of August 30, 1963 (297 315) -

also take place in a known manner by means of a holding current in the coils 5 and 6 or 9 and 10 .

The actuation magnetic fields are generated via the working air gap between the base plates 1 and 2 closed.

Claims (4)

Patent claims: 1. Coordinate multiple switches using thermowell anchor contacts for Telecommunication, in particular telephone dialing systems, in which made of easily magnetizable material existing, arranged in two parallel planes, intersecting in terms of coordinates and each row or column rails carrying one or more row coils or column coils are magnetically conductively connected by a box-like magnetizable reflux bow and in which at each intersection between row and column rail a perpendicular to theirs Layers extending as an anchor contact is arranged contact set that coincides with Arousal associated with him with his 609 607/67 Contact tongues magnetically coupled row rail and column rail is actuated and the switches through lines assigned to these two rails, characterized in that that a) for the row rails (3) and for the column rails (4) each have their own backflow bracket is provided, one of which extends over the entire intersection field designed as a "magnetizable base plate (1 or 2) perforated at the intersection points" is, b) the baseplates between the levels of the row and column rails parallel in are arranged at such a mutual distance that the working air gaps of the protective tube armature contact (8) between the two. Base plates are and that c) coils working against one another at the two ends of each row or column rail (5, 6 or 9, 10) are arranged. 2. Coordinate multiple switch according to claim 1, characterized in that each Rail group with the associated base plate (1 or 2) by means of z. B. at right angles to it erected side plates (7 or 12) made of magnetizable material a closed for itself magnetic circuit forms. 3. Coordinate multiple switch according to claim 2, characterized by one - of one Ring magnet (11 Fig. 1) generated around each protective tube armature contact - magnetic field to hold .one once by coincident excitation of its row coils and its column coils closed contact, which is opened again by counter-magnetization of its coils will. 4. Kpordinaten multiple switch according to claim 1, characterized in that in known Way to hold a contact by means of a holding current in the coils (5 and 6 or 9 and 10). Considered publications: German Patent No. 925 358; German interpretative documents No. 1023 490,
818, 1127 957, 1136 382, 1141 680; Ericsson Review, Vol. 39, 1962, No. 4, pp. 112-116. 1 sheet of drawings 609 607/67 7.66 © Bundesdruckerei Berlin