Valve

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OBJECT TYPE: N/A
DATE: 1933–1937
ARTIFACT NUMBER: 2014.0119.010

MANUFACTURER: Coxeter & Son
MODEL: Nitrous Oxide
LOCATION: London, United Kingdom

More Information

General Information

Serial #: 21749
Part Number: 10
Total Parts: 16
AKA: N/A
Patents: N/A
General Description: Metal body; brass connector; rubber tubing

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length: 27.0 cm
Width: 13.0 cm
Height: 6.5 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Medical Technology
Category: Chemicals & medications
Sub-Category: N/A

Manufacturer

AKA: Coxeter
Country: United Kingdom
State/Province: Unknown
City: London

Context

Country: Unknown
State/Province: Unknown
Period: Unknown
Canada: Part of a collection of medical technologies donated to the Canada Science and Technology Museums Corporation by the Canadian Anesthesiologists’ Society. This machine was lent to CAS by Dr. Jeremy Sloan of North York, Ontario in 1995. Dr. Sloan is regarded as a leader in the promotion of safety standards for anesthetic equipment.
Function: Unknown
Technical: The original concept of Boyle's machine was invented by the British anaesthetist Henry Boyle (1875–1941) in 1917. Boyle promoted intratracheal insufflation techniques using nitrous oxide, oxygen and ether, replacing open-drop anaesthesia. Initially he used imported Gwathmey machines from the USA, but finding them unreliable, he developed his own continuous-flow machines. His design included cylinders for the gases and a "Boyle's Bottle" to vaporize diethyl ether. Until recently, an anaesthetic machine was often referred to as a "Boyle's Machine" in honour of his contribution. Dr. Sloan believes that this machine has an unsafe design because it was hard to assemble which often resulted in connection errors and issues during operation. (ref.1)
Area Notes: Unknown

Details

Markings: On proper front: "NITROUS OXIDE/ COXETER/ LONDON/ PATENT/ No. 190807."/ Stamped on side: "21749"
Missing: Appears complete
Finish: Plated metal, brass, and brown rubber tubing
Decoration: N/A

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Coxeter & Son, Valve, circa 1933–1937, Artifact no. 2014.0119, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/2014.0119.010/

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