Print hammer for type printers

Details Print hammer for type printers Print hammer for type printers

1977-06-20

1979-02-27

Coven, Edward M.

Printing

Selective or progressive

Bed and platen machines

101 9334, B41J 902

Patent

active

041412907

ABSTRACT:
Print hammer actuating apparatus of the double lever type in which one lever is moved in response to an input force and carries a pivotally mounted second lever which provides the output force through either an "inertia" principle or "ratio" principle. The angular velocity of the first lever is multiplied through those principles to provide greater impact velocity at the output of the second lever without requiring an increase of the input energy.

REFERENCES:
patent: 3164085 (1965-01-01), Hawkins
patent: 3417690 (1968-12-01), Clark et al.
patent: 3504623 (1970-04-01), Staller
patent: 3587456 (1971-06-01), Jaensch
patent: 3832942 (1974-09-01), Murayoshi
patent: 3919933 (1975-11-01), Potter
patent: 3996852 (1976-12-01), Matsuzawa

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