摘要 |
852,543. Magnetic storage matrices. INTERNATIONAL BUSINESS MACHINES CORPORATION. Oct. 1, 1957 [Oct. 4, 1956], No. 30699/57. Class 40 (9). [Also in Group XVII] A tubular needle 88 is used to thread a wire 90 through a row of cores 42 in a magnetic matrix. The needle is fed into the cores by hand-operated rollers 100, 102. When the needle leaves the rollers 100, 102 it is held by a braking roller 112 operated by a handle 118 and wire is driven by rollers 100, 102 through the needle as far as clamp 48 by which it is held. The needle is then withdrawn by rollers 112, 100 and 102 and the wire is cut by a knife blade 132. The cores of a 32 x 32 matrix are held by suction in a jig 38 which fits the top of a vacuum chamber 32 on a turntable 16. The turntable has two notches 22 which co-operate with a detent 24 to fix the turntable in either of two positions in which the rows or the columns are presented to a set of 32 needles for threading. The needles slide in parallel grooves 86 in a support 82 pivoted at 60 and are covered by a transparent plate 92. A screw 96 is used to adjust the level at which the needles enter the cores. The wires are stored on reels 72 which are braked by an adjustable shoe 120. The jig 38 may be formed with parallel grooves 46 to take the wires in one direction at a lower level than the wires in the direction at right angles to the grooves. |