Hemingray Glass Company

{{Short description|American glass manufacturing company}}

{{Infobox company

| name = Hemingray Glass Company

| image = Hemingray42.jpg

| image_caption = The Hemingray 42, a telegraph pin insulator produced by the Hemingray Glass Company, is widely found in North America

| former_name = Gray & Hemingray
Gray, Hemingray & Bros.
Gray, Hemingray & Brother
Hemingray Bros. & Company
R. Hemingray & Company

| industry = Glass

| fate = Purchased by the Owens-Illinois Glass Company

| founded = 1848 in Cincinnati, Ohio, US

| founders = Robert Hemingray
Ralph Gray

| defunct = 1972

| hq_location_city = Muncie, Indiana

| num_locations = 3

| area_served = North America

| products = Pin 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.{{cite web|url=http://www.insulators.info/articles/hemi100.htm|title=Hemingray Glass Insulators - 100 Years Of History|first=Bill|last=Meier|website=Insulators.info|date=August 27, 1995|access-date=January 28, 2019}} The complex is now used by Gerdau Ameristeel, a steel production company headquartered in Brazil.