Label imprinting apparatus

Claim 1

AN IMPRINTING APPARATUS FOR SUCCESSIVELY PRINTING SUITABLE INDICIA ON SERIALLY ARRANGED LABELS AND THE LIKE CONNECTED TOGETHER INTO A WEB OF INDETERMINATE LENGTH, SAID APPARATUS COMPRISING (A) AN ELONGATE BASE HAVING A LATERALLY EXTENDING GROOVE THEREIN AT A MEDIAL POINT THEREOF, (B) ROTATABLE MEANS CARRIED BY SAID BASE ON ONE SIDE OF THE GROOVE THEREIN FOR SUPPORTING A ROLL OF THE WEB OF LABELS FOR UNWINDING THEREFROM, (C) A ROTATABLE PRINTING CYLINDER CARRIER BY SAID BASE IN SPACED RELATION TO SAID ROLL SUPPORTING MEANS AND ON THE OPPOSITE SIDE OF SAID GROOVE AND HAVING PRINTING INDICIA ON THE SURFACE THEREOF FROM PRINTING LABELS PRESENTED THERETO, (D) MEANS OPERATIVELY ASSOCIATED WITH SAID PRINTING CYLINDER FOR APPLYING A FILM OF INK TO THE PRINTING INDICIA THEREON IN TIMED RELATION TO THE ROTATION OF SAID PRINTING CYLINDER, (E) MAIN FEEDING MEANS CARRIED BY SAID BASE BETWEEN SAID ROLLER SUPPORTING MEANS AND SAID PRINTING CYLINDER FOR INTERMITTENTLY FEEDING THE WEB OF LABELS TO SAID PRINTING CYLINDER IN TIMED RELATION TO THE ROTATION THEREOF FOR SUCCESSIVE PRINTING OF THE LABELS, SAID MAIN FEEDING MEANS COMPRISING A PAIR OF COOPERATING FEED CAMS HAVING PORTIONS OF THEIR PERIPHERY PROTRUDING BEYOND THE REMAINDER THEREOF TO DEFINE FEED PORTIONS THEREON, SAID FEED CAMS BEING ROTATABLY ADJUSTABLE TO VARY THE RELATIVE THE AMOUNT OF THE WEB PORTIONS THEREOF FOR VARYING THE AMOUNT OF THE WEB OF LABELS FED TO SAID PRINTING CYLINDER UPON EACH REVOLUTION OF SAID FEED CAMS, (F) ADJUSTABLE AUXILIARY FEEDING MEANS OPERATIVELY ASSOCIATED WITH SAID MAIN FEEDING MEANS FOR POSITIONING AND REGISTERING SUCCESSIVE LABELS IN PROPER POSITION TO BE FED BY SAID MAIN FEEDING MEANS TO SAID PRINTING CYLINDER FOR PRINTING THEREOF, SAID AUXILIARY FEEDING MEANS BEING ADJUSTABLE RELATIVE TO SAID MAIN FEEDING MEANS WITHIN A RANGE AT LEAST AS GREAT AS THE CIRCUMFERENCE OF THE FEED PORTION OF ONE OF SAID FEED CAMS FOR POSITIONING THE LABELS RELATIVE TO SAID MAIN FEEDING MEANS SO THAT THE PRINTED INDICIA MAY BE DISPOSED AT ANY DESIRED LOCATION ON THE LABELS, (G) A PAIR OF ELONGATE BACK GUIDES BEING SUBSTANTIALLY BASE BETWEEN SAID PRINTING CYLINDER AND SAID GROOVE AND EXTENDING FOR A MAJOR PORTION OF THE DISTANCE THEREBETWEEN, SAID BACK GUIDES BEING SUBSTANTIALLY C-SHAPED IN CROSS-SECTION WITH THE ENDS OF LOWER LEGS THEREOF ADJACENT SAID ROLL SUPPORTING MEANS BEING FLARED DOWNWARDLY AND BEING DISPOSED IN SAID GROOVE IN SAID BASE FOR SMOOTHLY AND UNINTERRUPTEDLY GUIDING THE WEB OF LABELS TO SAID PRINTING CYLINDER, AND (H) FRONT GUIDE MEANS CARRIED BY SAID BASE ON THE OPPOSITE SIDE OF SAID PRINTING CYLINDER FROM SAID MAIN FEEDING MEANS FOR POSITIVELY GUIDING THE WEB OF PRINTED LABELS FROM SAID PRINTING CYLINDER TO THEREBY PREVENT THE LABELS FROM STICKING TO SAID PRINTING CYLINDER AND T THUSLY PREVENT SMEARING OF SAID PRINTED INDICIA ON THE LABELS AND WINDING OF THE LABELS AROUND SAID PRINTING CYLINDER.