Printing – Printing members – Rolling contact
Patent
1975-01-27
1976-07-13
Burr, Edgar S.
Printing
Printing members
Rolling contact
29126, 267140, B41F 1310
Patent
active
039687473
ABSTRACT:
A printing apparatus comprises a wheel having at least two spaced parallel sides. A type-supporting member is slidably mounted between said sides for radial movement, the wheel being open radially outwardly from this supporting member to receive a segment of rubber type. A spring of resilient, rubber-like material, in columnar form extends radially of the wheel between the sides, being secured at its radially outer end to the supporting member and at its inner end to the central portion of the wheel. Radially inward movement of the supporting member causes flexure of said spring which reacts with a corresponding force. A type segment mounted on said type-supporting member will be impressed against a surface to be imprinted depending upon the reactionary force exerted by the flexed spring. Since the spring is in columnar form, the reactionary force exerted by the spring is fairly constant for varying degrees of flexure thereby providing a fairly uniform force of engagement of the type face with an irregular surface as the type face moves between the high and low points thereon.
REFERENCES:
patent: 199460 (1878-01-01), Morgans
patent: 2085323 (1937-06-01), Leash
patent: 2475524 (1949-07-01), Scott et al.
patent: 2761547 (1956-09-01), Gehrer
patent: 2804968 (1957-09-01), Elliot et al.
patent: 2910938 (1959-11-01), McKenzie
patent: 3467010 (1969-09-01), King
patent: 3677017 (1972-07-01), Shirvany
patent: 3824932 (1974-07-01), Aronson
Burr Edgar S.
Coven Edward M.
Lincoln Logotype Co., Inc.
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