Apparatus for detecting a tape splice

Details Apparatus for detecting a tape splice Apparatus for detecting a tape splice

1984-04-26

1986-04-22

Gilreath, Stanley N.

Advancing material of indeterminate length

With material-responsive control means

To regulate longitudinal movement of material

226 45, 360 741, B65H 2002, B65H 2602

Patent

active

045836698

ABSTRACT:
A splice detection apparatus which operates directly upon the solenoid which is conventionally used to bring the pinch roller into contact with the capstan of a recording/playback unit, eliminating the need for separate levering mechanisms, to detect changes in thickness between spliced and unspliced portions of a tape. Such differences are monitored directly at the solenoid, resulting movement of the plunger of the solenoid developing a change in voltage which is detected by appropriate electronic circuitry to develop a signal which indicates passage of the splice, and appropriately discontinues transport of the tape.

REFERENCES:
patent: 1916845 (1933-07-01), Leland
patent: 3217996 (1965-11-01), Bernier
patent: 3561655 (1971-02-01), Yasukawa et al.
patent: 3561700 (1971-02-01), Adams et al.
patent: 3643846 (1972-02-01), Kato et al.
patent: 3718269 (1973-02-01), Glaettli
patent: 3854643 (1974-12-01), Weaver
patent: 3877627 (1975-04-01), Boase et al.
patent: 4142221 (1979-02-01), Jenkins et al.
patent: 4194659 (1980-03-01), Birch
patent: 4221316 (1980-09-01), Jenkins et al.

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