1935-1940’s Antique/Vintage Model# 0760 Baume Scale Hydrometer for Alkali, CENCO

Description

1935-1940’s Antique/Vintage Model# 0760 Baume Scale Hydrometer
for Alkali, CENCO Central Scientific Co. Chicago, USA was founded in 1900; Mint Condition;
An interesting piece of collectible glass, no doubt functional as well, and a great conversation piece.
This Hydrometer has never been used; in Original Box; Stills has Original Dark Cotton Packing. 10.75”L x .75 at the lower bulb; Paper Interior Scale 0-65 Degree Fahr. Used for Display Only.
Before standardization on specific gravity around the time of World War II the Baumé scale was generally used in industrial chemistry and pharmacology for the measurement of density of liquids. The Baumé scale is also used in winemaking, opthalmics, sugar beet processing,
starch industry, printed circuit board (PCB) fabrication and caustic in refining process.
Central Scientific Company
Industry
Scientific educational equipment
Predecessor
Olmstad Scientific Company
Successor
Sargent-Welch
Founded
Chicago, Illinois, United States (1900; 121 years ago)
Defunct
2000
Headquarters
United States
Products
Science teaching equipment
Central Scientific Company was founded in 1900 in downtown Chicago. It was formed out of what was left of the Olmstad Scientific Company. Central Scientific manufactured and distributed science teaching equipment for schools, colleges, and universities by catalog mail order. The trademark CENCO was used from 1909 onwards. CENCO dominated the field of selling science education equipment through their mail order catalog.
By 1935, the company established itself as one of the leading national suppliers of science equipment. During World War II, part of the manufacturing facility was turned over to the production of war necessities, making bombsights for airplanes and fuses for large bombs.
What is a Baume hydrometer made of?
A hydrometer is made up of a thin glass tube sealed at both ends with a graduated or printed scale 0-65 calibrated to a specific gravity. One end of the tube is bulb shaped and weighted with a ballast of either fine lead shot or steel shot.
Can a Baume hydrometer measure alcohol content i.e. winemaking?
The use of a hydrometer is necessary to calculate the alcohol by volume (ABV) content of your beer, cider or wine. A Baume Scale hydrometer is a device that can be used to measure the specific gravity (SG) or density of a liquid with respect to water. It is important to remember that Baume Scale does not actually measure a sugar concentration or sugar weight per unit volume in alcohol. Instead it measures the specific gravity of a solution, or a volume measurement only.
After 1968, the company began having financial difficulties. In 1974, the assets were sold off to competitors. The educational business retained the name Central Scientific Company. In April 1979, Central Scientific's assets and activities were acquired by two businessmen from Buffalo, New York. They sold the business to Sargent-Welch (their main competitor) in 2000. source wikipedia
will be shipped priority mail, insured; carefully packaged.
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