Images and digital reproductions are temporarily unavailable for purchase. Please check back when MNHS library services resume.
Cornelius slide rule
Plastic slide rule "Pre-Mix Computer" produced and marketed by the Cornelius Company of Minnesota after 1956. The ruler allows the user to set a particular volume of carbon dioxide gas on one side of the ruler, and then relate gauge pressure (measured in pounds per square inch) with beverage temperature (in degrees F). The gauge was part of the company's pre-mix beverage distribution system, that distributed beverages in large tanks ready to dispense.
Content Category: artifacts
1 1/2 inches height
7 inches width (closed)
Manufacturer: Cornelius Company
Made in: Anoka, Anoka County, Minnesota, United States
Weights & Measures. Rulers
Creation: Not earlier than 1956
|Holding Type||3D Objects|
2015.17.2 (Accession Number)