Printing apparatus with type wheel disconnected from selection means during return to home position

Claim 1

CYCLICALLY OPERABLE PRINTING APPARATUS, COMPRISING: A PRINTING MEMBER, SAID PRINTING MEMBER HAVING A PLURALITY OF EMBOSSED CHARACTERS THEREON, AND MOUNTED FOR SELECTIVE MOVEMENT FROM A HOME POSITION RELATIVE TO A PRINTING STATION IN ORDER TO POSITION ONE OF SAID CHARACTERS FOR PRINTING; ACTUATABLE SELECTOR MEANS PROGRESSIVELY MOVABLE IN A PREFERRED DIRECTION, SAID SELECTOR MEANS INCLUDING PLANETARY GEAR MEMBERS, EACH OF SAID GEAR MEMBERS HAVING TEETH FORMED IN ITS PERIPHERY, THE PITCH OF THE TEETH FORMATION CORRESPONDING TO INCREMENTS OF MOVEMENT OF EACH OF SAID GEAR MEMBERS; MEANS NORMALLY INTERCONNECTING SAID SELECTOR MEANS TO SAID PRINTING MEMBER IN ORDER TO MOVE SAID PRINTING MEMBER AS SAID SELECTOR MEANS IS MOVED; CODED CONTROL MEANS FOR SELECTIVELY ACTUATING SAID SELECTOR MEANS TO THEREBY MOVE SAID PRINTING MEMBER IN ORDER TO POSITION A PARTICULAR CHARACTER ON SAID PRINTING MEMBER FOR PRINTING, SAID CODED CONTROL MEANS HAVING A ROTATABLE SHAFT, PAWL MEANS MOUNTED FOR MOVEMENT ON SAID SHAFT AND FOR SELECTIVE ENGAGEMENT WITH SAID GEAR MEMBERS, AND ELECTROMAGNETIC MEANS ASSOCIATED WITH EACH OF SAID PAWL MEANS FOR SELECTIVELY ENGAGING THE SAME IN RESPONSE TO CODED IMPULSES; PRINTING MEANS OPERABLE DURING EACH PRINTING CYCLE FOLLOWING SELECTION OF A CHARACTER TO PRINT THE SELECTED CHARACTER ON A DOCUMENT; NORMALLY INEFFECTIVE MEANS FOR RESTORING SAID PRINTING MEMBER TO SAID HOME POSITION; AND MEANS OPERABLE FOLLOWING PRINTING IN EACH CYCLE TO DISCONNECT SAID PRINTING MEMBER FROM SAID SELECTOR MEANS IN ORDER TO THEREBY RENDER SAID RESTORING MEANS EFFECTIVE.