Temperature compensated data recorder

Details Temperature compensated data recorder Temperature compensated data recorder

1987-05-05

1988-07-05

Yasich, Daniel M.

Thermal measuring and testing

Temperature measurement

With specified recording arrangement

73430, 346 33TP, G01K 102

Patent

active

047550635

ABSTRACT:
A recorder is disclosed for producing a continuous data record and comprises a case, a strip chart which is wound from a chart storage compartment onto a spring-given take-up spool and a speed-reducing governor comprising a paddle wheel, immersed in viscous fluid, operatively connected to the driven take-up spool by a gear train. The paddle wheel contains temperature-responsive paddles which extend or retract in response to increases and decreases in the temperature to compensate viscosity changes in the fluid. Also, the drive spring is mounted within the take-up spool inside a free-rotating sleeve which prevents spring distortions from interfering with the smooth operation of the take-up spool.

REFERENCES:
patent: 3167966 (1965-02-01), Ashleman
patent: 3919632 (1975-11-01), Roerty
patent: 4007637 (1977-02-01), Nakagawa et al.
patent: 4135400 (1979-01-01), Maxwell et al.

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