[Trade Journal]
Publication: The Journal of Electricity, Power and Gas
San Francisco, CA, United States
vol. 30, no. 16, p. 371, col. 2
NEW CATALOGUES.
·
·
Hemingray Glass Company of Covington, Ky., have published a booklet of "Some Interesting Facts about Hemingray Glass Insulators." These include not only the facts of annealing to avoid strains, but also the detailed results of a larger number of tests in the electrical laboratories of the Worcester Polytechnic Institute.