Aneroid Barometer


This is a brass instrument, 5¼ inches diameter and 2½ inches deep. The inscriptions on the metal face read “Stormoguide” 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 Stormoguide 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, and introduced the Tycos trade mark in 1908. It obtained a copyright on the term Stormoguide in 1922, and advertised it as a simplified barometer that indicated weather probabilities for 12 to 24 hours in advance. It gave this example to the Smithsonian in 1923.

Ref: Francis E. Collinson, “Barometer,” U.S. Patent 1,107,496 (1914).

Date Made: 1922

Location: Currently not on view

See more items in: Medicine and Science: Physical Sciences, Barometers, Measuring & Mapping


Exhibition Location:

Credit Line: Taylor Instrument Companies

Data Source: National Museum of American History

Id Number: PH.308170Catalog Number: 308170Accession Number: 70532

Object Name: Aneroid Barometer

Measurements: overall: 5 3/4 in x 3 in x 5 1/4 in; 14.605 cm x 7.62 cm x 13.335 cm


Record Id: nmah_1432697

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