Patent of the Day
Utility Patent 1,204,745 on November 14, 1916
By Jens Peter Dahl-jensen
Press: Insulator threading press

[Set My Event Preferences]

Wednesday, November 14, 2018
Special Events

Insulator & Bottle Shows in the next 45 days
Insulator Show Loudon, TN in 3 days Sat, November 17
Bottle Show Albany, NY in 4 days Sun, November 18
Bottle Show Greensboro, NC in 4 days Sun, November 18
Bottle Show Bethlehem, PA in 11 days Sun, November 25
Insulator ShowBottle Show Roseville, CA in 17 days Sat, December 1
Insulator Show Enfield, CT in 18 days Sun, December 2
NIA show Orlando, FL in 212 days Fri, June 14 (3 day show)
NIA show Helena, MT in 254 days Fri, July 26 (3 day show)
NIA show Logan, UT in 576 days Fri, June 12 (3 day show)
More shows
search time 0.01 seconds

*Where did the Birthday and Anniversary listings go?

What's New? Insulator Collectors On the Net! Go to the Porcelain Insulator Pages Navigation banner
Updated Monday
November 5, 2018
Are you  a member?
Why don't you join?

Donate to ICON
Porcelain Insulator
Pages

Featured:
book cover

Collecting and Identifying Crown Embossed Brookfield Beehive Insulators

General Information:
*Insulator Profiles
*Frequently Asked Questions
*Glossary of Insulator Terms
*Style Number Charts
*Anatomy of an Insulator
*Ted's Top Ten Tips
*Search the Insulator Pages
*Most Popular Insulators
*Insulator Wiki
*Download Area
*Links to Related Sites

Photo Albums:
*North American Insulators
*Foreign Insulators
*Porcelain Insulators
*PicturePoster Gallery Updated 11/2018
*Shorpy Photographs
*Early Telegraph Insulators
*Insulator "Go-Withs"
*Insulators in Service
*Crown Jewels of the Wire
*Power Line Explorer
*The Greatest Insulator Find

Clubs and Shows:
*National Insulator Association
*Local Clubs
*Show Calendar Updated 11/2018

Read it Online:
*Research Articles and StoriesUpdated 4/2015
*ICON Articles and Pictures
*Canadian Forum
*Books Online
*Show Reports
*Insulator News
*Taking Care of Your Insulators
*Classic Articles from RRTP
*Insulators and Computers

Reference Material:
*Reference Books
*Magazines
*Publications Reference Library
"The Insulator Gazette"
*Patent Reference Library
*Insulator Geography
Where were they used?
*Insulator Catalogs
*Design Specifications
*Insulator Research Service
*Out of Print Resources

The People Connection:
*ICON Mailing List
*Collectors' Pages
*Collectors Web Sites
*Online Contacts
*PicturePoster Insulators For Sale Updated 11/2018
*Insulators For Sale and Trade Updated 11/2018