Hemingray Dots

CD 315-334

One piece - Large power styles

CD 317.8/313/313/313.1

CD 317.8/313/313/313.1

Size: 273mm x ??mm (10.75" x ??")




Years produced: c.1902
Style (CD) scarcity: 1, One of a kind
Intended use: High Voltage
Notes: One of a kind four part power insulator. Found at the Hemingray factory dump in the 1960's. Patent June 10, 1902 (Patent No. 701,847)

Also see the article “1904 - High - tension power transmission” for details of this design and pictures of it being tested! Also see this link for additional 1905 test photos.

Primary EmbossingEINEmbossingBaseColor
PATENT - OTHER[010](CD 317.8 Top) (F-Skirt) "SECTION 1" (R-Skirt) PATENTED JUNE 10 1902 (CD 313 Sleeve)(F-Skirt) HEMINGRAY (R-Skirt) PATENT MAY 2 1893 (CD 313 Sleeve)(F-Skirt) "SECTION 2" (R-Skirt) HEMINGRAY PATENT MAY 2 1893 (313.1 Sleeve) (No embossing) (Hemingray product)SDPAqua

Share this page on:

Like or Follow on Facebook: