Taylor Aneroid Barometer

This is a brass instrument, 5¼ inches diameter and 2½ inches deep. The metal face is marked “Stormguide” and “COMPENSATED FOR TEMPERATURE” and “Tycos” and “UNITED STATES COPYRIGHT 1922 TAYLOR INSTRUMENT COMPANIES, ROCHESTER, N.Y.” The pressure scale around the circumference reads from 27.5 to 31.5 inches of mercury, in fifths of an inch. Letters around the scale, running from A to K, correlate with various weather conditions.
An altitude scale on the back of the instrument extends from 0 to 3500 feet, and reads: “ROTATE THIS PLATE UNTIL THE ARROW ON THE CASE POINTS TO THE ALTITUDE OF YOUR LOCALITY PATENTED AUGUST 18-1914”
The Stormguide was based on a design developed by Francis E. Collinson of London, England. It was widely promoted for domestic and amateur use.
The Taylor Instrument Companies began operating, as such, 1904, introduced the Tycos trade mark in 1908, and donated this instrument to the Smithsonian in 1923.
Ref: Francis E. Collinson, “Barometer,” U.S. Patent 1,107,496 (1914).
Currently not on view
date made
overall: 5 3/4 in x 3 in x 5 1/4 in; 14.605 cm x 7.62 cm x 13.335 cm
ID Number
catalog number
accession number
Credit Line
Taylor Instrument Companies
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Medicine and Science: Physical Sciences
Measuring & Mapping
Data Source
National Museum of American History