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Browse Prior Art Database

Cross Bar Switching System

IP.com Disclosure Number: IPCOM000092536D
Original Publication Date: 1966-Dec-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 29K

Publishing Venue

IBM

Related People

Gergaud, F: AUTHOR

Abstract

The crosspoints of the switching system comprise reed relays R activated by linear displacement of magnet M. Displacing and latching of M are obtained by successive pulse controlled displacements of bars L and C according to the drawing 1 timing and to the following phases.

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Cross Bar Switching System

The crosspoints of the switching system comprise reed relays R activated by linear displacement of magnet M. Displacing and latching of M are obtained by successive pulse controlled displacements of bars L and C according to the drawing 1 timing and to the following phases.

At rest, the mechanisms are in the position shown in drawing 2 and R are open. This is phase 0. In phase 1, bar C has forward displacement, arrow F1. Finger 1 gets free from notch 2 while pawl 3 pivots until projection 4 comes into contact with upper edge 5 of rod 6.

In phase 2, bar L has forward displacement arrow F2. Bar L carries away rod 6 while moving, owing to projection 4 on pawl 3. Magnet M comes into operating position. Relays R close and spring 7 is compressed. In phase 3, bar C has backward displacement, arrow F3. Finger 1 comes just behind the lower edge 8 of rod 6 while pawl 3 moves off from this rod. Finger 1 prevents rod 6 from moving back and thus the switch is latched in operating position.

In phase 4, bar L has backward displacement, arrow F4. Bar L comes back to its initial rest position without effect upon the rod 6 position. The mechanisms are then in latched rest position and the switch remains closed.

A return to the initial rest position, relays R open, is obtained by a back and forth displacement of bar C only.

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