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  2. Mechanically powered flashlight - Wikipedia

    en.wikipedia.org/wiki/Mechanically_powered...

    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 ...

  3. Flashlight - Wikipedia

    en.wikipedia.org/wiki/Flashlight

    A flashlight or electric torch (Commonwealth English), usually shortened to torch, is a portable hand-held electric lamp. Formerly, the light source typically was a miniature incandescent light bulb , but these have been displaced by light-emitting diodes (LEDs) since the early 2000s.

  4. Dynamo - Wikipedia

    en.wikipedia.org/wiki/Dynamo

    "Dynamo Electric Machine" (end view, partly section, U.S. patent 284,110) A dynamo is an electrical generator that creates direct current using a commutator.Dynamos were the first electrical generators capable of delivering power for industry, and the foundation upon which many other later electric-power conversion devices were based, including the electric motor, the alternating-current ...

  5. Lampworking - Wikipedia

    en.wikipedia.org/wiki/Lampworking

    As torches get bigger and more powerful, the cross-over between lampworking and furnace glass continues to increase. Fuming is a technique that has been developed and popularized by Bob Snodgrass since the 70's and 80's. Fuming consists of heating silver or gold in the flame, so that the metals vaporize or "fume" microscopically thin layers of ...

  6. Third-brush dynamo - Wikipedia

    en.wikipedia.org/wiki/Third-brush_dynamo

    Three-brush dynamo charging circuit A third-brush dynamo was a type of dynamo , an electrical generator , formerly used for battery charging on motor vehicles . It was superseded, first by a two-brush dynamo equipped with an external voltage regulator , and later by an alternator .

  7. Blowtorch - Wikipedia

    en.wikipedia.org/wiki/Blowtorch

    Liquid-fueled torches are pressurized by a piston hand pump, while gas torches are self-pressurized by the fuel evaporation. 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.

  8. Bottle dynamo - Wikipedia

    en.wikipedia.org/wiki/Bottle_dynamo

    A bottle dynamo or sidewall dynamo is a small electrical generator for bicycles employed to power a bicycle's lights. The traditional bottle dynamo (pictured) is not actually a dynamo at all (which creates DC power), but a low-power magneto that generates AC .

  9. Dynamometer - Wikipedia

    en.wikipedia.org/wiki/Dynamometer

    A chassis dynamometer.. A dynamometer or "dyno" is a device for simultaneously measuring the torque and rotational speed of an engine, motor or other rotating prime mover so that its instantaneous power may be calculated, and usually displayed by the dynamometer itself as kW or bhp.