Brown Ceramic Insulator B On It

The only embossed marking on multipart porcelain insulators is the typical but much larger o b used by ohio brass on its unipart styles.

Brown ceramic insulator b on it. From the start it should be noted here that this is a very brief description of the basics on porcelain insulators there are several excellent publications listed in the reference books section that are a must for any serious collector. 7 4 s p p t o b 2 t n y j b s o r e d c. Similar to their glass counterparts porcelain insulators date back to before the civil war for telegraph wires. Id rings u manufacturer emb type embossing rest emb loc colour width height value notes.

This is patent no. New listing vintage power line electrical porcelain ceramic light brown insulator. Ug triangle japan. Vintage threaded insulator.

Aug 22 2014 vintage threaded insulator made of ceramic brown color traditional shape. Stamped 1933 on one side pp inc on the other. Go to forestry catalog pages. In north america glass was always the predominate material for communications insulators but porcelain has become the standard for power distribution due to its greater strength and surface resistance.

Glossy brown insulator porcelain insulator vintage 1933. 1933 insulator is in good condition minor surface scratches no chips no cracks. Go to forestry photos page 1 2 3. Top rated seller top rated seller.

Similar to the glass cd consolidated design number porcelain pin type insulators can be identified by u unipart or m multipart numbers. 7 ceramic brown glazed wire pole insulators lag screw type used. From united states customs services and international tracking provided. However the insulator in the patent does not appear to be intended to be used as a forestry insulator.

Fortunately few porcelain insulator styles u numbers have both dry process specimens with an embossed marking and wet process specimens with one of the other marking types. This insulator is from porcelain products inc. 403 491 which was assigned to the e. Make offer lot of 6 large antique ceramic porcelain brown insulators pinco assorted brands 13 vintage porcelain insulator white v 19 99 10 55 shipping.

Chance insulator brown glass under glazed ink u g electric porcelain 1967. The first forestry insulator was the victor patented in 1889. Porcelain insulators page 1.