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Lampworking is a type of glasswork in which a torch or lamp is used to melt the glass. Once in a molten state, the glass is formed by blowing and shaping with tools and hand movements. It is also known as flameworking or torchworking , as the modern practice no longer uses oil-fueled lamps .
Unlike a metalworking torch, or burner, a flameworking torch is usually "surface mix"; that is, the oxygen and fuel (typically propane, though natural gas is also common) is mixed after it comes out of the torch, resulting in a quieter tool and less dirty flame. Also unlike metalworking, the torch is fixed, and the bead and glass move in the flame.
Scientific glassblowing is a specialty field of lampworking used in industry, science, art and design used in research and production. Scientific glassblowing has been used in chemical, pharmaceutical, electronic and physics research including Galileo's thermometer, Thomas Edison's light bulb, and vacuum tubes used in early radio, TV and computers.
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The term "blowtorch" is commonly misused as a name for any metalworking torch, but properly describes the pressurized liquid fuel torches that predate the common use of pressurized fuel gas cylinders. Torches are available in a vast range of size and output power. The term "blowtorch" applies to the obsolescent style of smaller liquid fuel torches.
acethylene.com A comprehensive guide to the care and maintenance of acetylene gas lamps; A User's Guide to Carbide Cap Lamps. Has many good pictures & videos. Carbide lamp Demonstration experiment: Instruction and video; The Carbide Caver A website on the history, restoration, and use of carbide lamps for caving.
The torch is a common emblem of both enlightenment and hope, [5] thus the Statue of Liberty, formally named Liberty Enlightening the World, lifts her torch. Crossed reversed torches were signs of mourning that appear on Greek and Roman funerary monuments—a torch pointed downwards symbolizes death , while a torch held up symbolizes life, truth ...
A dyno torch, dynamo torch, or squeeze flashlight is a flashlight or pocket torch which generates energy via a flywheel. The user repeatedly squeezes a handle to spin a flywheel inside the flashlight, attached to a small generator/dynamo, supplying electric current to an incandescent bulb or light-emitting diode. The flashlight must be pumped ...