Impression control apparatus employing two sets of stops

Claim 1

A POWER DRIVEN TYPEWRITER HAVING A PLURALITY OF TYPE ELEMENTS; A CONTINUOUSLY ROTATING POWER ROLL; A PLURALITY OF ROCKABLE CAMS ASSOCIATED WITH SAID TYPE ELEMENTS; KEYBOARD MEANS RESPONSIVE TO OPERATOR ACTUATION OPERATIVE TO MOVE A ROCKABLE CAM CORRESPONDING TO A SELECTED CHARACTER INTO DRIVEN RELATION WITH SAID POWER ROLL TO IMPART A DRIVING FORCE TO THE ASSOCIATED TYPE ELEMENT; MEANS TO DISENGAGE SAID ROCKABLE CAMS FROM SAID POWER ROLL TO LIMIT THE DRIVING FORCES IMPARTED TO SAID TYPE ELEMENTS; SAID MEANS TO DISENGAGE COMPRISING A FIRST STOP MEMBER HAVING A FIRST GROUP OF STOPS THEREON; A SECOND STOP MEMBER HAVING A SECOND GROUP OF STOPS THEREON; OPERATOR CONTROLLED MEANS MOUNTING SAID FIRST AND SECOND GROUPS OF STOPS FOR RELATIVE MOVEMENT OF SAID FIRST AND SECOND GROUPS WITH RESPECT TO EACH OTHER THROUGH A RANGE OF MOVEMENT;