A Hutchinson-style spirometer from Stoelting, a manufacturer and distributor of school supplies. Identical, except for the nameplate, to spirometers manufactured by the Naragansett Machine Company of RI between 1900 and 1920, Stoelting sold these spirometers from around 1920 to 1940. At guess, this one is from around 1920. Found on the Dr. Nicholas and Dorothy Cummings Center for the History of Psychology website.
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Spirometer, Stoelting, circa 1920’s
Stoelting was a manufacturer and distributor of school equipment and supplies. They were known to have sold a Hutchinson-style spirometer from the 1920’s through the 1930’s. This specific spirometer design was manufactured by several different companies from about 1890-1940. Photo source is unknown.
Spirometer, Stoelting, 1930
From Stoelting, C. H. 1930. Apparatus, Tests and Supplies for Psychology, Psychometry, Psychotechnology, Psychiatry, Neurology, Anthropology, Phonetics, Physiology, and Pharmacology. Chicago. Page 212.
Described as a “Spirometer, Wet, Hutchinson’s. Used to measure the total quantity of air that can be forcibly expired after a maximal inspiration. It is calibrated in cubic decimeters and cubic inches and can be used with either glass or wood mouthpieces.”
The picture looks identical to that used in textbooks from around 1900. The Hutchinson spirometer lives on virtually unchanged almost 90 years after it was first invented!