Recorders – Performance of multiple functions of steam and gas engines – Pressure responsive element
Patent
1987-01-28
1988-08-02
Hartary, Joseph W.
Recorders
Performance of multiple functions of steam and gas engines
Pressure responsive element
346 71, 346140R, 346 33R, 434302, G01D 1516, G09B 2308
Patent
active
047616580
ABSTRACT:
A method and apparatus for measuring experimental quantities utilizes a self-contained ink jet impactless timing device including an ink jet head employing a timing circuit to provide a precisely timed ink dot stream. In utilizing the present invention, relative movement is initiated between the ink jet device in indicia receiving medium, generally ticker-tape paper, producing a dot pattern on the indicia receiving medium. The dot pattern, so produced, can be reviewed to obtain the experimental results. The invention can be utilized in various ways to measure the acceleration due to gravity, velocities, momentum, linear acceleration, period of a pendulum, motion of a spring, etc.
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Pages from Fischer Scientific Company Catalog.
Pages from Central Scientific Company Catalog.
Adolphson K. Bradford
Hartary Joseph W.
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