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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.
It has a connection and valve for the fuel gas and a connection and valve for the oxygen, a handle for the welder to grasp, and a mixing chamber (set at an angle) where the fuel gas and oxygen mix, with a tip where the flame forms. Two basic types of torches are positive pressure type and low pressure or injector type.
A torch is a stick with combustible material at one end which can be used as a light source or to set something on fire. [1] Torches have been used throughout history, and are still used in processions , symbolic and religious events, and in juggling entertainment.
Torch for soldering, plumbing, jewelry and brazing A small butane torch made for kitchen use. A butane torch is a tool which creates an intensely hot flame using a fuel mixture of LPGs typically including some percentage of butane, a flammable gas.
Propane torches are frequently employed to solder copper water pipes. They can also be used for some low temperature welding applications, as well as for brazing dissimilar metals together. They can also be used for annealing , for heating metals up in order to bend them more easily, bending glass, and for doing flame tests .
Swedish fire with sparks flying. A Swedish torch [a] is a source of heat and light from a vertically set tree trunk, incised and burning in the middle. It became known in Europe during the 1600s and is now used by forest workers, and for leisure activities (especially in southern Germany).