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dental anaesthesia unit

https://mhc.andornot.com/en/permalink/artifact13105
Dates
1950
1960
circa 1950-1960
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
010020016 a-p
Description
Dental anaesthesia unit, metal enamelled in green and black (a); black top with silver metal railing at sides and back; to the left and right are metal knobs, tank attachments and circular gauges for cyclopropane, nitrous oxide, oxygen and carbon dioxide; gauges have glass coverings, white paper an…
  3 images  
Accession Number
010020016 a-p
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
Dentistry, Operative -- instrumentation
Ventilators, Mechanical
Anesthesiology, instrumentation
MM= Anesthesia, Inhalation -- machine
Description
Dental anaesthesia unit, metal enamelled in green and black (a); black top with silver metal railing at sides and back; to the left and right are metal knobs, tank attachments and circular gauges for cyclopropane, nitrous oxide, oxygen and carbon dioxide; gauges have glass coverings, white paper and red, black and grey ink; at top are four rectangular gauges for each gas showing litres per minute, c.c's per minute for NO2; front of cabinet has four drawers with black handles and lined with green felt on right side; door to cabinet on left; inside are coiled black rubber tubes attached to a rebreather bag and metal tank; four rubber black wheels at bottom of unit; metal chain hanging from bottom of unit; white metal oxygen tank attached at right (b); black rubber rebreather bag (c) attaches via silver metal attachment to black rubber tubing (d); adult black rubber inhaler (e); two coiled black rubber tubes (f, g); two rubber black straps, perhaps to attach mask to face (h, i); smaller rubber and metal attachment (j); loose black knob (k); five sections of yellow rubber tubing (l, m, n, o, p)
Number Of Parts
16
Part Names
a - unit - Size: Length 90.5 cm x Width 66.0 cm x Depth 36.4 cm
b - oxygen tank - Size: Length 51.0 cm x Diam. 8.5 cm
c - rebreather bag - Size: Length 33.0 cm x Diam. 13.3 cm
d - tubing with attachment - Size: Length 67.0 cm x Width 6.0 cm x Depth 3.0 cm
e - inhaler - Size: Length 11.7 cm x Width 9.0 cm x Depth 7.7 cm
f - coiled tubing - Size: Length 88.0 cm x Diam. 4.0 cm
g - coiled tubing - Size: Length 81.0 cm x Diam. 4.0 cm
h - rubber strap - Size: Length 72.5 cm x Width 15.0 cm x Depth 0.1 cm
i - rubber strap - Size: Length 72.5 cm x Width 15.0 cm x Depth 0.1 cm
j - attachment - Size: Length 7.5 cm x Width 7.0 cm x Depth 5.0 cm
k - knob - Size: Length 8.2 cm x Diam. 6.0 cm
l - tubing - Size: Length 22.6 cm x Diam. 1.3 cm
m - tubing - Size: Length 22.0 cm x Diam. 1.3 cm
n - tubing - Size: Length 22.0 cm x Diam. 1.3 cm
o - tubing - Size: Length 21.5 cm x Diam. 1.3 cm
p - tubing - Size: Length 17.4 cm x Diam. 1.3 cm
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa)
Maker
The Heidbrink Division, The Ohio Chemical & Mfg. Co.
Site Made (City)
Minneapolis
Site Made (State)
Minnesota
Site Made (Country)
United States of America
Dates
1950
1960
circa 1950-1960
Date Remarks
Based on donors remarks
Material
metal: silver, brown
enamel: green, black, blue, orange, grey, yellow, white
rubber: black
paper: white
ink: black, grey, red, green
glass: clear
fabric: green
Inscriptions
(a) Printed on gauges on top of unit: "CYCLOPROPANE", "NITROUS OXIDE", "CARBON DIOXIDE", "OXYGEN"; printed on knobs on left: "C3H6", "DIRECT N2O", "N2O"; on right: "O2", "DIRECT O2", "CO2"; printed on gauge on right: "USE NO OIL // CO2 // THE HEIDBRINK DIVISION // THE OHIO CHEMICAL & MFG. CO. // MINNEAPOLIS"; printed on gauge on left: "USE NO OIL // N2O // OHIO CHEMICAL // & SURGICAL EQUIPMENT CO. // A DIVISION OF // AIR REDUCTION COMPANY, INCORPORATED // MADISON, WISCONSIN, U.S.A."; printed on back of unit: "LUNDY // ROCHESTER MODEL // HEIDBRINK // KINET-O-METER // REG. US. PAT. OFF. // HEIDBRINK DIVISION OF // THE OHIO CHEMICAL & MFG. CO. // MINNEAPOLIS MINN. // PAT. NO. 1,412,866 PAT. NO. 1,989,366 // PAT. NO. 1,802,601 PAT.NO. 2,073,372 // PAT. NO. 1,858,084 // OTHER PATS. APP'D FOR // MADE IN U.S.A."; embossed on wheels: "NOELTING FAULTLESS // EVANSVILLE"; (d) printed on attachment: "BEFORE EACH USE // OHIO // TEST ENTIRE UNIT"; (e) embossed on inhaler: "MEDIUM ADULT // CONDUCTIVE"; (m) stamped on pipe: ""PORTEX" No 7 // MADE IN ENGLAND"; (l, o) stamped on pipes: ""PORTEX" No. 8H // MADE IN ENGLAND"
Permanent Location
Storage Room W2
W2-536-4-1
Condition Remarks
Unit scratched at top; enamel chipped at front of unit; metal at wheels, inside drawers and cabinet corroded; paper darkened and faded on nitrous oxide gauge; rubber hardened at end on (f, g); rubber sticky but malleable on yellow piping (l, m, n, o, p)
Copy Type
Original
Reference Types
Document
Person
JPG
Reference Comments
Dr. Harry Tregobov; Dr. P. Ralph Crawford
CD #9
Research Facts
Dr Ralph and Mrs Olga Crawford donated their extensive Canadian dental collection to the DCF to create the museum in 1997; further donations were received while Dr Crawford was Curator Emeritus at the Dental Canada Museum until its closure in 2008; this item was originally used by a colleague of Dr. Harry Tregobov from Winnipeg, Manitoba; it was purchased used in 1962 from a hospital in Saskatchewan and would be used while Dr. Tregobov performed dental work
Images
Less detail