Typewriting machines – Typing to produce embossed character – By type-die mounted on carrier movable for selection of...
Patent
1981-10-27
1983-11-15
Lowe, James B.
Typewriting machines
Typing to produce embossed character
By type-die mounted on carrier movable for selection of...
400179, 425385, B41J 122
Patent
active
044152841
ABSTRACT:
An improved machine for heating and die cutting plastic tape to form letters, numerals and other characters is disclosed which includes a rotatable disc-shaped print plate which defines a plurality of raised characters spaced in a circle on and around one broad surface thereof. The print plate includes a central hub, a thermally conductive backing plate attached to the hub but thermally isolated from the hub by thermally insulating washers disposed therebetween, and a thermally conductive print ring, containing the raised characters thereon, which is attached to the backing plate, and a heating ring including electrical resistance wire zig-zagging between a pair of sheets of electrically insulating rubber material, the heating ring being disposed between the backing plate and print ring. A print pedestal is disposed opposite the print ring and contains a movable plate upon which is mounted a rubber pad which is movable upon command against any selected one of the raised characters depending upon the rotational alignment of the print plate relative to the pedestal. A locking means, which may be an air cylinder operated plunger, is engageable with grooves located in a circle around and in the central hub to lock the print plate in precise alignment during each printing operation. A movable tape index plate is also disclosed which is coupled through a gear train to a pair of rollers which advances the plastic tape across the print pedestal pad as the plate advances toward one of several adjustable stop pins which are selectively alignable to interfere with the advancement of the tape index plate to limit such advance to any one of several precise distances.
REFERENCES:
patent: 1300342 (1919-04-01), Campbell
patent: 3227258 (1966-01-01), Pannier et al.
patent: 3301370 (1967-01-01), Miller
patent: 3768619 (1973-10-01), Lewis
Lowe James B.
Moss James W.
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