โ Scribed by B.L. Blackford; C.J. Purcell; G. Stoink
No coin nor oath required. For personal study only.
Of course, this instrument could be improved by introducing some elementary modifications which we did not undertake, namely.
diminishing the transmission of vibrations into the mercury of the manometer;
introduction of a thin and small stainless steel circular plate, which would be floating centred on the free surface of the mercury, so that the platinum pin Pt would make the electrical contact with this plate, instead of direct contact with the mercury, thus avoiding the adhesion of the liquid to the point, which increases the relaxation-time;
finally, modification of the variable impedance pistonvalve in order to achieve a faster response, this would diminish the relaxation-time as well.
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