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Bimetallic Thermograph, 1901-1920

Bimetallic Thermograph, 1901-1920

1901-1920
BM Test Haemo-Glukotest strips and lancets for measuring blood glucose level

BM Test Haemo-Glukotest strips and lancets for measuring blood glucose level

1980-1990
HF tester

HF tester

circa 1960
Measuring machine

Measuring machine

1850-1860
Level and angle indicator by Fletcher and Sinclair

Level and angle indicator by Fletcher and Sinclair

1860-1910
Steelyard ammeter, 1885

Steelyard ammeter, 1885

1885
Revolution counter by Elliot Bros

Revolution counter by Elliot Bros

Paper Temperature Recorder, Galvanometer Type, 1901-22

Paper Temperature Recorder, Galvanometer Type, 1901-22

1901-1922
Map measuring wheel and calculator plate

Map measuring wheel and calculator plate

1880-1920
Chinese foot-measure, Chien-Lung period

Chinese foot-measure, Chien-Lung period

Map measurer

Map measurer

1801-1840
Depthing tool brass

Depthing tool brass

30cm T-rule

30cm T-rule

Gimballed compass plate

Gimballed compass plate

Clearspan P100L single pen temperature recorder with spare chart and accessories, 1970-78. Calibrated to use copper constantin thermocouple.

Single-Pen Electrical Temperature Recorder, 1970-78

1970-1978
Single thread electrical temperature recorder in glazed case, by The Cambridge Scientific Instrument Company Ltd., Cambridge, England, 1910-14. Range say 0-1000°C, with 100 charts

Single Thread Temperature Recorder, 1910-14

1910-1914
Original Callendar electrical temperature recorder (including integrator) in wooden case, 1897.

Callendar Temperature Recorder, 1897

1897
Measuring rod, heavy, tapering, equal divisions marked with inlaid brass, also inlaid characters in brass

Brass measuring rod

Two paper discs, with a scale around the outside from vacuum tubes

Vacuum tube measuring disc

1898
Pressure measuring device for feet, in white cabinet, invented by Mr. Dodds

Pressure measuring device for feet

ECG machine by the Cambridge Instrument Co. A unique calibrating model, c.1940. With box of ECG leads and spare parts, & galvanometer (without scale).

Electrocardiograph machine, c.1940

1935-1945