Spirometer, Lowne, 1880-1890

Found on the Science Museum UK website.

“This portable spirometer is made of brass, rubber and glass in a mahogany case. It was made by Arnold and Sons of London. The patient’s breath bubbled up a water-filled collecting glass and pushed up a sliding weight. A scale on the attached spirometer indicated the capacity of the lungs. Scientific instrument maker, Robert Mann Lowne (1844-1929) patented this portable spirometer in 1865.”

Spirometer, Lowne or Casella, circa 1880

Based on the sheet in the background this is either a Lowne or Casella spirometer, and probably manufactured in England in the 1880’s.  It’s possible that Casella, a company that specialized in manufacturing scientific instruments, manufactured it based on a design by Lowne since the spirometers attributed to both of these sources look mostly identical.  Found on an auction website, The Saleroom.com.

The diverse, quirky and mostly forgotten history of Pulmonary Function testing