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Bent slag glass lamp repairs
Bent glass lamp repairs are known for lamps using curved glass panels. Basically bending a flat piece of slag glass to conform to an existing bent glass lamp panel. It’s starts by making a mold with one of the original panels and not a past repair or copy. The original curved glass lamp panel is evaluated determining the glass manufacturer, the density of the glass and the type of bend. 
My goal is to best match each and satisfy my clients.
Manufactures: Slag glass lamp panel glass in 1900 came from many companies. At the time of writing this page only two companies still manufacturing glass. (Bench rack shown) I have seven racks and over 900 bins containing rare old glass arranged by color. Most of which came from the same two glass manufactures still making glass since the circa 1900 period.
Density: Early lamp designs of 1900’s were sold in (black and white) catalogs or in showrooms. This was a time when the glass manufactures (sheet glass) worked 24/7 making glass for the lighting companies to bend. 
The glass was in my words beautiful ( wild and inconsistent). Looking at the lamps you can see how each panel and every lamp was unique and different.
As production slowed and demand over the next 50 years slowed. The sheet glass manufacturing focused on quality control with opalescent glass. A good example would be the popular caramel color (KOG11). Manufactured since 1888 the color is now available in (11LL-11ML-11-11MD and 11D) densities. Allowing me to best match your older KOG11.
Bends: The term single, double and compound bend are used to express the difficulty of the bend. After bending thousands of curved glass lamp panels a bend is a bend. It takes the same amount of time to make the mold (4-6 hours). It take the same amount of time to make a panel (3-4 hours) one at a time. If anything it can be exciting and rewarding performing a challenging bent glass panel.
Below are some of my slag glass lamp repairs that I am proud of.
In most pictures bent slag glass lamp repair reflects matching and repairing one or two panels. But clients also have the option of updating to a total new color and or texture. By choice or necessity which is reflected by the current condition of the existing glass.
I think its important to note that over 90% off all existing curved glass lamp panels have had damages and new curved glass installed over the past 120 years. Glass panels are the one thing that is expected to be changed along with the electrical upgrades every 20 or so years. IF a slag glass lamp shade has gone through several glass repairs at some point its best to change all the glass to make the restoration look original again.
Send your slag glass lamp panel repair pictures to: Len.Daley@yahoo.com
Questions please call me at 401-314-6005 (12-6ESTime) non Text#
I can best help you after you email pictures
To complete your quote for restoration if you include the following.
1. Pictures of both the inside and outside of the lamp.
2. The dimensions Length x Height.
3. The number of broken pieces.
4. Metal issues or glass issues I may not see in the pictures.
