Archive for the ‘replacement clock glass’ Category
The old glass was repaired so it could be use to cast a high temperature mold . The mold and an old piece of glass went into a kiln to form a glass blank.
The blank was cut to size , beveled and the dimple was ground and polished. The dimple is use to add additional clearance for the center stem.
I hope to update the post with a picture of the restored clock. I have made many lens for old clocks but this is the first one with a additional polished bent and dimple.
A clock shop sent me the front and back bezels from an antique clock. They needed the beveled glass replaced. I used vintage glass. It is very important to use antique glass when restoring a clock. Using new glass will greatly effect the value of an antique clock.
The bezels look round but very rarely are . I have and use old glass from the period the clock was made. The equipment I use to bevel the glass is all so period. Most of my machines I use are as old if not older than the the clocks. The machines are run by leather belts and use lead babit bearings. The beveling and polishing equipment are power by electric motors not steam engines as originally.
Note the small pitts in the glass .
The beveled glass lenses are made to very tight tolerances and are install in the bezel . They are not glued in.
I have made “new “old glass for hundreds of carriage clocks. The bevels are small and come to a very sharp point on the edges . They need to be thin on the edge because the grove in the brass were the glass fits is very small. I use old glass when I make replacement panels for antique clocks. You can tell the old glass by the wavy surface and seeds (small bubbles in the glass). This glass is 100 years plus in age . I have a stock of old ( antique ) glass I use for clocks. It helps preserve the value of the clock.
This glass is very old and perfect for making replacement beveled glass panels for antique carriage clocks and regulators.
The antique clock sat on the mantel since the beginning of time . One of the kids went to wind the clock and broke the glass . I save old glass for clocks like this. New glass is a different color green and is very flat. The antique glass has a yellow hue and a distorted finish. Sometimes the antique glass has bubbles and blisters . This is important when it comes to the value of the clock. An antique clock with new glass doesn’t retain its resale price.
I have antique beveling machines that run on leather belts. The same type used to make this antique beveled glass lens originally. The fitting of the antique replacement beveled glass in the bezel is very tricky. The tolerances are with in thousands of an inch. I make replacement beveled clock glass for clock shops all over the the country most of them in New York and LA.