From: Anthropometry and physical examination: A book for practical use in connection with gymnastic work and physical education, By Jay Webber Seaver, 1905. Page 25.
Category Archives: Drawing
Spirometer, Weiss, 1863
Spirometer, Perry’s, 1882
Spirometer, Oxygen Dispensing, 1889
Gasometer, Oxygen Dispensing, 1889
From: Essay on medical pneumatology by By Jean Nicolas Demarquay and Samuel S. Wallian, 1889, page 265. From a chapter on “Aerotherapy” or treatment with oxygen. The oxygen was created chemically and then stored for use. “Metal gasometers with a capacity from fifty to 100 gallons are generally adopted for office use when other than small quantities of gas are needed. Zinc and galvanized iron are both used, the latter preferable because stronger and more durable. The best forms have self-supporting frames and weights adapted to balance the weight of the bell, or gas holder, as it rises and falls.” |
Spirometer, Hutchinson, 1859
Spirometer, Dr. Mitchell’s, 1863
From: A Treatise on hygiene. By William Alexander Hammond, 1863, page 42.
“A spirometer, made upon the plan of a dry gas meter, has been for some time employed in Germany, and was introduced into use by Dr. W. Weir Mitchell. It is altogether more simple in its management than the rather clumsy instrument of Hutchinson, and affords fully as accurate results.”