公开(公告)号：DE1129736B

公开(公告)日：1962-05-17

申请号：DEJ0011064

申请日：1955-12-22

Applicant: IBM DEUTSCHLAND

Inventor： STEVENS LOUIS DIXIE ,  BOWDLE RAYMOND RALPH ,  DAVIS JAMES HARRY ,  KEAN DAVID WILSON ,  LYNOTT JOHN JOSEPH ,  GODDARD WILLIAM ABBOTT

IPC: G06F3/08 ,  G11B5/55 ,  G11B25/04

Abstract: 819,789. Electric motor driving arrangements. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 20, 1955 [Dec. 24, 1954], No. 36437/55. Class 35. [Also in Groups XIX, XXVI and XXXVIII] In an electric servo-system for a data-storage device (see Groups XIX and XXXVIII), a wheel 152 is positioned by selectively energizing a pair of oppositely driven magnetic-power clutches 148, 149 so that one is excited more than the other and therefore the driving torque in one direction or the other predominates. Specifications 684,273, [Group XVI], 748,996, 763,815 and 764,434, [all in Group XXXVIII], are referred to.