1979 >> May >> More Telephotos  

More Telephotos
by Richard A. Peterson

Reprinted from "INSULATORS - Crown Jewels of the Wire", May 1979, page 20

Enclosed you will find two different photographs that you can use for Crown Jewels magazine.

1. This insulator is a puzzle to me I will try and see if I can get information on this one from the San Francisco Electricity Dept. The base appears to be made of lignum vitae, and the top is a steel cap, with a nut fasten (shown on another photograph enclosed) to keep cable in place. 

2. An all wooden lignum vitae insulator. 

3. U-501 Ohio Brass 

4. U-634A Ohio Brass 

Many poles have cables that aren't tied to the insulators! 


600-volt dc trolley line in San Francisco


1. CD #297 Due to the extreme height, I can't locate the name. Could be F. M. Locke or No. 16. At foreground is a strain insulator. 

2. CD #287 This one could be F. M. Locke made. 

3. U-625 W (circled) E Corp. 

4. U-670 Possible Victor made 

These views were taken from the top crossarm of the pole in foreground.


4KV line in San Jose 


If I ever come up with more interesting photographs of old lines, I will send some to you in the future. 

(See photos on the following two pages.)



| Magazine Home | Search the Archives |