Next
Matt Weldon

Matt Weldon

Posted: 30 Nov 2016

Taken: 16 Jan 2014

2 favorites     2 comments    535 visits

1/6 • f/13.0 • 29.0 mm • ISO 100 •

PENTAX K-5

EXIF - See more details

See also...

Pentax Pentax

Keywords

glass •
aqua glass •
color glass •
pole line •
k-5 •
old glass •
glass insulator •
insulator •
power line •
electric lines •
power pole •
aqua •
electricity •
electric •
pentax •
power •
CD 249 •

Authorizations, license

Visible by: Everyone
All rights reserved
535 visits

CD 249, HEMINGRAY, Aqua (Reverse Side)

CD 249, HEMINGRAY, Aqua (Reverse Side)
With A. R. Hudson posting many great photos of the CD 249 No 0, PROVO TYPE insulators in service use, I thought I would post a front and reverse side of one from my collection.

The CD 249 is a large power insulator used for high voltage power distribution with a rating up to 50,000 volts. The Hemingray Glass Company in Muncie, Indiana produced these 0 Provo Type insulators in the early 1900's, and were used in service around the Pittsburgh, PA area.

The April 25, 1899 patent was issued to Vernon G. Converse of Pittsburg, PA for a design patent for a power insulator assigned to the Hemingray Glass Company. This was implemented in the CD 282 and 283 and later copied by U-372.

Embossing (F-Skirt) HEMINGRAY (R-Skirt) No 0, PROVO TYPE / PATENTED APRIL 25 1899
Index # 005

austintaylor619, AstroElectric have particularly liked this photo

Comments
 David Dahle
David Dahle
REAL nice pictures of this monster. I'll bet it must have been a challenge for the folks at Hemingray to make these without all that hot glass slumping.
8 years ago.
Matt Weldon has replied to David Dahle
Thanks and you are so right about that. The # 0 Provos have always been one of my favorite Hemingray power insulators.
8 years ago.

Sign-in to write a comment.