Maker and Role
The McKesson Appliance Company, Manufacturer
Metal instrument. At front is a cotton filter and metal vaporizer with a metal knob ar and a scale from 1-7. Behind is a metal cylindrical absorber with a metal knob at top and a gas valve to the side. Behind the absorber are two dials measuring "Reduced Pressure" with scales from 0-120. Beside each is a gas valve for N₂O on the left hand side and O₂ on the right hand side. Between the dials is a knob controlling pressure which is attached to a large circulr knob controlling oxygen per cent. At the back is a curved platform on which chart paper would have been placed. The Model J Nargraf recorded onto moving chart paper data that was useful to an anesthesiologist, such as the patient’s blood pressure, the percentage of oxygen being administered to the patient, and the patient’s respirations. Has a stand - long round metal pipe with bracket clamped on that supports gas bottle crackers and connections.
Processed Material/Metal/Alloy/Copper Alloy/Gun-Metal
Signature/Marks and Type
PAT NOS. RE 17512 - 1,022,149 - 1,667,255 OTHER PATS PEND. / McKesson Nargraf / MODEL J Maker's Mark
McKESSON APPLIANCE CO. / ABSORBER / MODEL 620 / SER. NO. X4833 Maker's Mark
McKESSON APPLIANCE CO. / TOLEDO, OHIO, U.S.A. / ETHER VAPORIZER / MODEL 965 SER. NO. X7981 Maker's Mark
The McKesson Appliance Company. Anaesthetic Equipment [McKesson Nargraf Machine], F2212.2004. The Museum of Transport and Technology (MOTAT).