Slag glass lamp repair – Tabs or U brass channel
I often request additional pictures for slag glass lamp repair quotes. Many client just start by sending one picture of the outside and ask for a ball park quote. The lamp picture below represents many types of slag glass lamp repair. The skirt work reflects a copper foil technique also known as the Tiffany copper foil technique. It also reflects the typical brass U channel technique.
The process or technique for building slag glass lamps morphed with production manufacturing. Obviously folding brass tabs offered a quick assembling method. U brass channel also offered a quick assembly method and a much stronger lamp shade when completed. The huge difference happens later during the lamp repair process. Again with just one picture to look at like above I’m often unable to detect whats going on under the bent glass panel shade. I’m also unable to detect the type of texture the glass may have. Seeing how the glass is held in answers a lot of questions to complete my quote. View the additional pictures of this lamp design to get an understanding of the assembling technique. Then try to understand the slag glass lamp repair it takes to remove and re assemble the pieces of bent glass.
In this second picture you can see how I can now identify the glass texture and the method of construction (NO TABS). Here is where this slag glass lamp repair becomes difficult. IF the larger bent slag glass panels had tabs on the interior. I would normally open the tabs, remove a good panel and proceed to copy and install a new panel. Instead I have to UN-solder an original panel (with its U brass channel), remove the U channel and then start the copy process. Later I need to re assemble the original and copy using the original brass channeling and then solder them into the same spots.
I think you can see the lamp above is using both the copper foil technique in the floral skirt and U brass channel for the larger bent panels. The lamp below use just the U brass channeling. You can zoom in on the pictures to see the brass U that holds each bent panel and how I have removed the channeling from the broken panels. After making my mold and bending my glass it takes a little grinding to re set the new glass into the original brass U channel. Once the glass is wrapped I can then solder the new panels into the exact location of the original panels. (Each was numbered for location).
Slag glass lamp repair work starts with the demand of slag glass.
You can google the history of glass manufacturing and the glass products that were being made during the mid 1800’s. Basically gift products and house hold glass items were mostly products made of glass by pressing, pouring or rolling. In both Europe and the United states during the start of the industrial revolution. Glass manufacturers seemed to be focused on new ideas, quality and production for a huge demand. Glass workers at the time were known to be creative with left over glass waste. At the end of the formal working day glass workers were allowed to use the leftover batch for their own use. In the course of this practice they would occasionally go from pot to pot, gathering different kinds and colors of glass. Thus various colors came into existence like a marbling or opaque pressed glass look with colored streaks, usually white and or cream streaks. The term slag was borrowed from the steel industry were the word describes the unusable waste residue left after smelting the iron ore. Slag glass products like dish ware, gift items and pressed objects became fashionable.
This new glass term “slag glass” was also used in the form of rolled sheet glass. Typically a one color mix with a white base and later mixed with up to four other colors. In the 1880’s opal “slag glass” colors were produced by several glass manufactures in the USA. Lamp companies like Tiffany, Handel, Bradley and Hubbard and others purchased flat sheets of opal slag glass and had them cut or bent by glass companies into panels for their slag glass lamps.
Having the benefit of history behind me I will entertain you with some articles about slag glass lamp repair work and lamp companies below and on other pages from this menu. I will try to keep the articles unique but at the same time they will have some redundant wording for the internet robots to index my pages on the web.
–articles by Len Daley