1¢ Spirometer Found on an AuctionGuy.com listing. Described as: Lung Tester Shocker Arcade Machine. Countertop amusement machine in wood cabinet includes two front handles, a hose on the side for air pressure testing., and two coin slots. Dial is marked The Medina Manufacturing Co. Medina, N.Y. Includes key. Circa 1911. Condition (Excellent). Size 12-1/2″ x 11-1/2″ x 21-1/4″.
Using a Chauveau valve, the subject’s exhaled volume is measured by a gas meter and analyzed for CO2 and O2 chemically. Found in “The Human Motor, Or, The Scientific Foundations of Labour and Industry” by Jules Amar, Elsie Mary Butterworth, George E. Wright, published by G. Routledge & sons, Limited, 1920, page 145, but was ascribed to Jules Amar, Journal de Physiologie, March 1911, page 212.
From Carnegie Institution of Washington Publication, Issue 216, Comparisons of Respiratory Exchange, 1915, page 69.
From Carnegie Institution of Washington Publication, Issue 216, Comparisons of Respiratory Exchange, 1915, page 68.
From “Science and dedication: the Health Service, the Red Cross, war Solidarity works and postwar – published with the collab. Messrs. J. Abadie, Dr Jacques Bertillon, Dr Georges Brouardel, Published in Paris byA. Quillet in 1918. Found on the Medic Database (item med45_85x0278).
Found on the Steno Museum Collection website. Described as “a black stationary bike without wheels but instead mounted on four obliquely positioned legs, standing in a black iron frame on the floor.” It appears to be electromagnetically braked and is attributed to a design of August Krogh. Manufactured by the Copenhagen Electric Motor Factory between 1910 and 1920.
From Human Physiology, Volume 1, By Luigi Luciani, published by Macmillan and Company, 1911, page 425.
“The same effect may be obtained when the animal is breathing free air, while enclosed within a hermetically sealed glass cylinder (Knoll). A tube tied in the trachea, or fitting tightly over the mouth and nostrils of the animal, passes through the wall of one box and communicates with the external air. The internal air of the box is connected by means of a second tube with a recording tambour, and traces, like a plethysmograph, the variations in the total volume of the animal , corresponding to the inspiratory and expiratory movements. The simplest application of this method is that of Bernstein, represented in Fig. 188.
Human Physiology, Volume 1, By Luigi Luciani, published by Macmillan and Company, 1911, page 422.
“The name tidal air is given to the volume of air which enters and leaves the pulmonary air passages during a normal inspiration and expiration. It can be measured by a well calibrated and graduated glass bell, which Hutchinson (1860) termed a spirometer (Fig. 187). A properly constructed gasometer, which offers minimal resistance to the passage of air can be substituted.”