Electrostatic printing with rotating screen frame and plural print stations

Claim 1

AN ELECTROSTATIC PRINTING APPARATUS COMPRISING: (A) BASE MEANS, (B) A ROTATABLE SCREEN FRAME OPERATIVELY MOUNTED ON SAID BASE MEANS AND HAVING AT LEAST ONE INDIVIDUAL ELECTROSTATIC PRINTING SCREEN ASSOCIATED THEREWITH, (C) A FIRST CONTINUOUSLY ROTATABLE SHAFT OPERATIVELY MOUNTED ON SAID BASE MEANS, (D) AN ACTUATING WHEEL OPERATIVELY MOUNTED ON SAID SHAFT AND ROTATING THROUGH CONTINUOUS 360* REVOLUTIONS, (E) A SECOND SHAFT OPERATIVELY DISPOSED IN SPACED RELATION TO SAID FIRST SHAFT, (F) A SLOT-WHEEL HAVING A PLURALITY OF ENGAGEABLE SLOTS OPERATIVELY MOUNTED ON SAID SECOND SHAFT AND BEING INTERMITTENTLY ROTATABLE, (G) AN EXTENDED PIN ON SAID ACTUATING WHEEL FOR ENGAGING ANY OF SAID SLOTS ON SAID SLOT-WHEEL AND ROTATING THE SLOT-WHEEL THROUGH ARCS OF SELECTED LENGTH DURING ARCUATE ROTATIONAL MOVEMENTS OF SAID ACTUATING WHEEL THROUGH SAID SELECTED LENGTH, (H) A TURRET OPERATIVELY CONNECTED TO SAID SLOT-WHEEL AND BEING ROTATABLE THEREWITH SO THAT SAID TURRET IS MOVED TO SUCCESSIVE POSITIONS WHICH ARE SPACED APART THE ARCUATE DISTANCE OF SAID SELECTED LENGTH, (I) A PLURALITY OF ARTICLE RETAINING MEANS MOUNTED ON SAID TURRENT AND BEING SIZED TO RETAIN DESIRED ARTICLES FOR PRINTING, (J) MEANS FOR FEEDING A SUPPLY OF ELECTROSCOPIC INK TO SAID SCREENS WHEN SAID ARTICLE RETAINING MEANS ARE ALIGNED WITH SAID SCREENS, (K) MEANS FOR MOVING SAID ROTATABLE SCREEN FRAME IN PRETIMED RELATIONSHIP TO SAID TURRET SO THAT EACH ONE OF SAID ARTICLE RETAINING MEANS BECOMES ALIGNED WITH ONE OF SAID SCREENS, (L) AND MEANS FOR CREATING AN ELECTROSTATIC FIELD BETWEEN SAID SCREENS AND ARTICLE RETAINING MEANS SO THAT INK WILL PASS THROUGH THE OPEN PORTIONS OF THE SCREEN TO THE ARTICLE RETAINING MEANS.