First bicycle ergometer, developed by Elisee Bouny, who worked for Jules-Etienne Marey, in 1895. Photograph was dated 1896. From a 2003 PhD dissertation by Yaser Mahfouz Atwa Saad Elgohari.
Tag Archives: Marey
Spirometer, 1889
Possibly a water-seal spirometer but if so the configuration is odd. Other than the caption which indicates it has a fixed capacity there was no accompanying text. From a book either by or about Marey, a French physiologist, dated 1889. Found on the Biusante Website.
Spirometer, Marey, 1886
Spirometer logger for measuring insufflation and increased pressure in a 300 liter container the amount of air inspired and expired in a respiratory act and compare the measurements with the indications of pneumographe. Attributed to Etienne-Jules Marey / 1882-86 / Station / physiological / I / Methods and Techniques. Found on the Medic Database.
Plethysmograph, Animal, 1891
Marey Pneumograph, late 1800’s, close-up
The Marey Pneumograph was a pressure-sensing device and was used to measure respiration. Although it was sensitive it was not terribly accurate but it was the first device able to do what it did. The descriptions of the Marey Pneumograph from the late 1800’s implied that the diaphragm was a disk of thin metal but from this photograph it seems far more likely it was thin rubber or another similar material. Shown is a close-up of the diaphragm mechanism. This device was originally called a pneumograph but a later invention of Marey’s, which consisted of an elastic device strapped across the chest that directly measured the expansion and contraction of the thorax with breathing took that name and this is more correctly known as the Marey Tambour. Photograph is courtesy of Pierre Moutonnet.
Marey Pneumograph, Late 1800’s
The Marey Pneumograph was a pressure-sensing device and was used to measure respiration. Although it was sensitive it was not terribly accurate but it was the first device able to do what it did. The descriptions of the Marey Pneumograph from the late 1800’s implied that the diaphragm was a disk of thin metal but from this photograph it seems far more likely it was thin rubber or another similar material. The stylus attached to the diaphragm traced a graph of its movement onto a smoked (carbon black) metal drum and is shown here with the diaphragm pressurized. This device was originally called a pneumograph but a later invention of Marey’s, which consisted of an elastic device strapped across the chest that directly measured the expansion and contraction of the thorax with breathing, took that name and this is more correctly known as the Marey Tambour. Photograph is courtesy of Pierre Moutonnet.
Marey Pneumograph, late 1800’s
The Marey Pneumograph was a pressure-sensing device and was used to measure respiration. Although it was sensitive it was not terribly accurate but it was the first device able to do what it did. The descriptions of the Marey Pneumograph from the late 1800’s implied that the diaphragm was a disk of thin metal but from this photograph it seems far more likely it was thin rubber or another similar material. The stylus attached to the diaphragm traced a graph of its movement onto a smoked (carbon black) metal drum and is shown with a relaxed diaphragm. This device was originally called a pneumograph but a later invention of Marey’s, which consisted of an elastic device strapped across the chest that directly measured the expansion and contraction of the thorax with breathing took that name, and this is more correctly known as the Marey Tambour. Photograph is courtesy of Pierre Moutonnet.
Pneumograph, Marey, 1883
Etienne-Jules Marey’s device is a small diaphragm (tambour) responsive to pressure. The apparatus amplified the motion of the tambour. Respiration was then recorded on a kymograph.
From Experimental Pharmacology. A hand book. Methods for studying the physiological actions of drugs. By Ludimarr Hermann and Robert Meade Smith. Copyright 1883.