Impression control apparatus for typewriters

Details Impression control apparatus for typewriters Impression control apparatus for typewriters

1975-01-08

1976-05-18

Burr, Edgar S.

Textiles: fiber preparation

197 16, B41J 2308

Patent

active

039571505

ABSTRACT:
A drive system for an electric typewriter has a power roll driven by an electric motor through a drive belt and a pulley rotatably mounted and resiliently connected to the power roll. The driving energy transmitted to the type action of the machine is controlled by energy-absorbing means adjustably connected to the power roll pulley and controlled through appropriate linkage by the machine operator to vary the energy absorbed by the resilient connection between the power roll and the pulley. A self adjusting means is also provided to set the proper tension on the drive belt of the drive system.

REFERENCES:
patent: 2902131 (1959-09-01), Ascoli et al.
patent: 3164237 (1965-01-01), Cappotto
patent: 3578128 (1971-05-01), Frechette et al.
patent: 3616887 (1971-11-01), Anderson
patent: 3642109 (1972-02-01), Cappotto et al.
patent: R25011 (1961-07-01), Barkdoll
patent: R25024 (1961-08-01), Barkdoll

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