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A lightbulb socket, lightbulb holder, light socket, lamp socket or lamp holder is a device which mechanically supports and provides electrical connections for a compatible electric lamp base. [1]
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Gobos are templates made from a thin piece of metal that have designs to project patterns. An Iris is an accessory which can alter the size of the projected beam of light. Color scrollers hold a spool of color media that have been attached to each other. It can then scroll through the gels to change the color. [1]
A brass escutcheon plate. The upper disc is hinged, allowing it to swivel over the open keyhole, or aside to allow the keyhole to be used. An escutcheon (/ ɪ ˈ s k ʌ tʃ ən / ih-SKUTCH-ən) is a general term for a decorative plate used to conceal a functioning, non-architectural item.
Gusset plates can be made into a variety of shapes and sizes and from a range of materials. Gusset plates are usually square or rectangular, but can be triangular or made into a customized shape to fit the joint. The shape of each plate is designed so that welding or bolts can be applied to different edges of the plate. [2]
[72] [73] The biggest chandelier in the Sheikh Zayed Grand Mosque in Abu Dhabi, with a diameter of 10 m, height of 15.5 m, weight of nearly 12 tonnes and lit with 15,500 LED lights, became the world's largest chandelier when it was installed in 2007. [74] In 2010, a chandelier of modern design was built in the foyer of an office building in ...
A hook gauge is the most reliable way to determine the actual size of a tool. Even though most hooks and needles have metric sizing, tool dimensions vary slightly between different manufacturers. Non-metric sizing conventions also change over time. For instance, different sizing charts rate a 4.0mm hook as either a U.S. G/6 or an F/5. [2]
The importance of the high-precision surface plate was first recognised by Henry Maudslay around 1800. He originated the systems of scraping a cast-iron plate to flatness, rubbing marking blue between pairs of plates to highlight imperfections, and of working plates in sets of three to guarantee flatness by avoiding matching concave and convex ...