| 摘要 |
<p>987,379. Cross-bar switches. STANDARD TELEPHONES & CABLES Ltd. June 28, 1963 [July 5, 1962], No. 25782/63. Heading H1L. A selecting finger comprises a flexible wire f having one end embedded in a plate p, the wire and plate being urged by a pre-stretched elastic device (a helical spring r as shown) in the direction of the axis of the wire f in order to hold the plate p against its supports x, y (the edges of a channel-section select bar s as shown) on either side of the axis of the wire f.</p> |
