Typewriting machines – Typing by other than type-face or type-die – Character formation by impact
Patent
1986-12-22
1988-05-03
Crowder, Clifford D.
Typewriting machines
Typing by other than type-face or type-die
Character formation by impact
400121, 411480, B41J 310
Patent
active
047416378
ABSTRACT:
A portable frame is supported for vertical movement on a pair of posts adjacent the surface of a table for receiving an object to be marked. A traveling plate is supported for movement on the frame in the horizontal plane above the surface of the object on the table. A ball screw drive connects the traveling plate to the frame for imparting longitudinal movement of the traveling plate in the horizontal plane. A marking head assembly is pivotally mounted on the plate and carries a plurality of impact pins which are reciprocated into and out of contact with the object by operation of programmable solenoid valves. An indexing wheel adjusts the angular position of the marking head assembly to control the size of characters formed by the pins impacting the object. The pins are activated as the traveling table is moved in the horizontal plane to inscribe a desired mark of a preselected character size on the plate. The object is also movable relative to the marking head assembly to facilitate multiple line marking in both forward and reverse directions of travel of the plate. The pins are each removably mounted in a bushing having different diameter portions arranged in such a manner as to engage the head of the pin and maintain the striking end a preselected distance from the bushing.
REFERENCES:
patent: 975310 (1910-11-01), De Ybarrondo
patent: 4051940 (1977-10-01), Kuelzer
patent: 4506999 (1985-03-01), Robertson
Crowder Clifford D.
M. E. Cunningham Company
Price, Jr,. Stanley J.
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