Operation control circuit arrangement for typewriters or the like

Claim 1

AN OPERATION CONTROL CIRCUIT ARRANGEMENT FOR A TYPEWRITER UNIT OR THE LIKE HAVING A KEYBOARD HAVING A PLURALITY OF KEYS AND A PLURALITY OF KEY OPERATED TYPEWRITER SWITCHES, SAID CIRCUIT ARRANGEMENT COMPRISING A CONTROL MEMBER REMOVABLY AFFIXED TO SAID TYPEWRITER UNIT; A PLURALITY OF SPACED POSITION CONTACTS ON SAID CONTROL MEMBER; A PLURALITY OF SPACED CONTACT TERMINALS ON SAID CONTROL MEMBER; A PLURALITY OF EXCHANGEABLE FLEXIBLE ELECTRICALLY CONDUCTING LEADS FOR ELECTRICALLY CONNECTING SELECTED ONES OF SAID POSITION CONTACTS TO SELECTED ONES OF SAID CONTACT TERMINALS; A CONTROL UNIT HAVING A PLURALITY OF INPUT CONTACT TERMINALS, A PLURALITY OF OPERATION CONTACT TERMINALS ADAPTED TO BE CONNECTED TO EQUIPMENT FOR PERFORMING A DESIRED PROCESS, A PLURALITY OF CONTROL SWITCHES CONNECTED BETWEEN SAID INPUT CONTACT TERMINALS AND SAID OPERATION CONTACT TERMINALS, AND SELECTION AND CONTROL MEANS FOR CONTROLLING THE OPERATION OF SAID CONTROL SWITCHES TO SELECT A DESIRED CONTROL PROCESS BY CLOSING SELECTED ONES OF SAID CONTROL SWITCHES; FIRST CONNECTING MEANS ELECTRICALLY CONNECTING THE CONTACT TERMINALS OF SAID CONTROL MEMBER TO THE INPUT CONTACT TERMINALS OF SAID CONTROL UNIT; AND SECOND CONNECTING MEANS ELECTRICALLY CONNECTING SELECTED ONES OF THE TYPEWRITER SWITCHES OF SAID TYPEWRITER UNIT TO THE SELECTION AND CONTROL MEANS OF SAID CONTROL UNIT IN A MANNER WHEREBY OPERATION OF SELECTION AND CONTROL MEANS IS CONTROLLED BY OPERATION OF SAID TYPEWRITER SWITCHES TO CLOSE SELECTED ONES OF THE CONTROL SWITCHES OF SAID CONTROL UNIT TO ELECTRICALLY CONNECT SELECTED ONES OF THE POSITION CONTACTS OF SAID CONTROL MEMBER TO SELECTED ONES OF THE OPERATION CONTACT TERMINALS OF SAID CONTROL UNIT THEREBY TO ENERGIZE SAID SELECTED ONES OF SAID OPERATION CONTACT TERMINALS IN ACCORDANCE WITH THE OPERATION OF SELECTED KEYS OF SAID TYPEWRITER KEYBOARD.