Insulator, Glass; Hemingray Glass Manufacturing Company; 1890-1940; Unknown numb...

Name/Title

Insulator, Glass

About this object

This is a glass number 9 Hemingray telegraph insulator manufactured by the Hemingray Glass Manufacturing Company in America from the 1890's to the 1940s. It was designed, primarily for rural use, to insulate the electrical wires they carry so that the electricity (or telephone calls) does not leak into the pole and into the earth. Glass and ceramic are preferred materials for the manufacture of insulators as they are poor conductors of electricity.

Maker

Hemingray Glass Manufacturing Company

Maker Role

Manufacturer

Date Made

1890-1940

Period

1920s

Place Made

North and Central America, United States, Ohio, Cincinnati

Medium and Materials

inorganic, processed materials, glass

Inscription and Marks

Emossed on base rim HEMINGRAY No 9

Measurements

h 100 mm x w 56 mm x d 56 mm

Subject and Association Keywords

Communication (including Diaries and Letters)

Object Type

equipment

Object number

Unknown number

Copyright Licence  

Attribution (cc) Attribution (cc)

This object is from
Tags

Include tags such as place names, people, dates, events and colours. Use commas to separate multiple tags. e.g. Pablo Picasso, Madrid, red, 1930s.

Share