Recording unit

Details Recording unit Recording unit

1976-03-18

1977-09-27

Schaefer, Robert K.

Registers

Locking mechanism

Typewriter computing

200 42R, 200 44, 361171, G06C 2500

Patent

active

040513491

ABSTRACT:
A cylinder lock wherein the insertion and rotation of a selected one of associated keys results in a projection of certain pins, mounted in a row parallel to the axis of the cylinder, radially beyond the cylinder surface in response to the irregularities of the key. The displaced pins effect a closing of contacts in a pattern to produce selected circuit functions. According to the invention the pins, when activated, deflect overlying respective parallel flexible wires extending transversely of the pin row. The deflected wires urge, via an insulated member, overlying movable contact reeds to engage overlying fixed contact members, so that circuits are closed as determined by the irregularities of the key.

REFERENCES:
patent: 2868905 (1959-01-01), Meyer
patent: 3631301 (1971-12-01), Goldman
patent: 3663774 (1972-05-01), Feder
patent: 3806675 (1974-04-01), Krom et al.
patent: 3873891 (1975-03-01), Gerber
patent: 3959613 (1976-05-01), Gerber

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