Hemingray Glass Company
FormerlyGray & Hemingray
Gray, Hemingray & Bros.
Gray, Hemingray & Brother
Hemingray Bros. & Company
R. Hemingray & Company
IndustryGlass
Founded1848 in Cincinnati, Ohio, US
FoundersRobert Hemingray
Ralph Gray
Defunct1972
FatePurchased by the Owens-Illinois Glass Company
Headquarters
Muncie, Indiana
Number of locations
3
Area served
North America
ProductsPin insulators

The Hemingray Glass Company was an American glass manufacturing company founded by Robert Hemingray and Ralph Gray in Cincinnati in 1848. In its early years, the company went through numerous and frequent name changes, including Gray & Hemingray; Gray, Hemingray & Bros.; Gray, Hemingray & Brother; Hemingray Bros. & Company; and R. Hemingray & Company before incorporating into the Hemingray Glass Company, Inc. in 1870. The Hemingray Glass Company had factories in Cincinnati and Covington, Kentucky with main production in Muncie, Indiana. Although Hemingray was best known for its telegraph insulators, the company produced many other glass items including bottles, fruit jars, pressed glass dishes, tumblers, battery jars, fishbowls, lantern globes, and oil lamps. In 1933, the Owens-Illinois Glass Company purchased the company, but the Hemingray name was retained at the production facility in Muncie.

The main plant in Muncie closed in 1972 and the company ceased producing insulators.[1] The complex is now used by Gerdau Ameristeel, a steel production company headquartered in Brazil.

Insulators

Hemingray was best known for producing telegraph and telephone pin insulators used on utility poles. To give an overview of the large variety of styles produced, the following table contains the twenty most common.[2] The table provides two numbers: the Consolidated Design (CD) number and the style number. The CD number is from a classification system developed by collectors that refers to the shape of the insulator, and is independent of the Hemingray Glass Company.[3] However, the style number (or name) was assigned by Hemingray to each insulator. Due to slight modifications in design over years of production, single styles can span multiple CD numbers.

CDStyleIntroducedDiscontinuedUsageNicknameImage
10691890s1940sTelephone, ruralPony
10791950s1960sTelephone, ruralPony
113121890s1940sTelephoneDouble Groove Pony
121161890s1920sLong distanceToll
1221619191960sTelephone, long distanceToll
12441880s1910sTelephone
125151870s1933Telegraph
128CSA1930s1950sTelephone, long distance
129TS1940s1960sTransposition
133Standard1870s1910sTelegraphSignal
134181880s1930sTelegraph, secondary power distribution
145211880s1930sTelegraphBeehive
14719071920sTelegraphSpiral Groove
1524019101921TelegraphHoopskirt
1544219211960sTelegraph
1554519381960sTelephone, long distance
160141880s1956Telephone, ruralBaby Signal
162191880s1940sSecondary power distribution, telephoneSignal
163191940s1960sSecondary power distribution
164201880s1940Secondary power distribution

See also

References

  1. ↑ Meier, Bill (August 27, 1995). "Hemingray Glass Insulators - 100 Years Of History". Insulators.info. Retrieved January 28, 2019.
  2. ↑ Willis, Christian. "Hemingray.info - The Hemingray Database: Top 20 Identified Insulators". Hemingray.info. Retrieved January 28, 2019.
  3. ↑ Meier, Bill (December 14, 2004). "CD Numbers Explained". Insulators.info. Retrieved January 28, 2019.


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