Speed governor for a disposable data recorder

Details Speed governor for a disposable data recorder Speed governor for a disposable data recorder

1979-09-17

1981-03-03

Jillions, John M.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

733435, 185 37, 242 673R, 2421073, 346 33TP, 346136, B65H 1702, B65H 7548

Patent

active

042536170

ABSTRACT:
A speed governor for a disposable spring motor driven data recorder of the type which is used, for example, in a railroad car to graphically record, on a traveling tape, the temperature in the car at all times during a transit period of several days; the speed governor comprising a mechanical-hydraulic mechanism associated with the spring motor and operative to control--to a constant but extremely slow rate--the speed of travel of the tape.

REFERENCES:
patent: 2060833 (1936-11-01), Smith
patent: 2838259 (1958-06-01), Cotton
patent: 3175517 (1965-03-01), Wiedermann
patent: 3688626 (1972-09-01), Cotey
patent: 3826140 (1974-07-01), Nakagawa et al.
patent: 3971035 (1976-07-01), Maxwell
patent: 4007637 (1977-02-01), Nakagawa

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