Apparatus for Administering Nitrous Oxide and other Anaesthetic Gases
date: label: date made
content: ca 1890
label: patent date
content: 1884-03-04
notes: label: Description
content: Amos Long (185-1939), a Michigan dentist, patented this gasometerin 1884, forty years after Horace Wells showed that nitrous oxide could relieve pain, At the turn of the century, Long’s gasometer, with its elaborate decorations, was commonly found in dentists’ offices. The apparatus has two tanks, the smaller of which held a canister of compressed nitrous oxide. The gas was then released into the larger tank and delivered to the patient via the rubber tubing and mask shown here. Although most commonly used in dentistry, nitrous oxide was also given to women in labor.
label: Description
content: Ref: Amos Long, "Gasometer," U.S. Patent 294,479 (March 4, 1884).
label: Location
content: Currently not on view
place: label: used
content: United States: Illinois, Chicago
topic: label: associated subject; web subject
content: Anesthesiology
label: associated subject; web subject
content: Dentistry
label: associated subject; web subject
content: Health Care
setName: label: See more items in
content: Medicine and Science: Medicine
creditLine: label: Credit Line
content: Northwestern University Dental School
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MG.M-06796
label: catalog number
content: M-06796
label: patent number
content: US294479A
label: accession number
content: 203911
objectType: label: Object Name
content: Apparatus, Anesthesia
label: Other Terms
content: Apparatus, Anesthesia; Dentistry
physicalDescription: label: Measurements
content: overall: 34 in x 14 in; 86.36 cm x 35.56 cm
label: Measurements
content: overall: 36 3/4 in x 20 in x 20 in; 93.345 cm x 50.8 cm x 50.8 cm