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This does not include the uninsulated ground wire. For instance, if the cable lists "12-2 AWG", it means there are two insulated 12-gauge wires (a black and a white wire), plus a ground wire. If the label says "12-3", this cable has four conductors—three 12-gauge insulated wires and a bare copper ground wire. [5]
Originally trademarked as a dispenser for Flit, a brand of insecticide manufactured by the Standard Oil Company of New Jersey (later Exxon). Heroin Trademarked by Friedrich Bayer & Co in 1898. [15] [16] Trademark lost in some nations in the Treaty of Versailles, in 1919. [17] Hovercraft Trademarked by Saunders-Roe. Kerosene First used around ...
Wire wheels, wire-spoked wheels, tension-spoked wheels, or "suspension" wheels are wheels whose rims connect to their hubs by wire spokes. [ 1 ] [ 2 ] [ 3 ] Although these wires are considerably stiffer than a similar diameter wire rope , they function mechanically the same as tensioned flexible wires, keeping the rim true while supporting ...
The Romex system is a contract bridge bidding system designed by Mexican bridge expert George Rosenkranz. [1] Key features of Romex are the multiple meanings attributed to certain bids, such as the dynamic one notrump and the Mexican two diamonds.
Simplified diagram of how a tonewheel works Goldschmidt tone wheel (1910), used as an early beat frequency oscillator. A tonewheel or tone wheel is a simple electromechanical apparatus used for generating electric musical notes in electromechanical organ instruments such as the Hammond organ and in telephony to generate audible signals such as ringing tone.
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Steel wire reel in Muurame, Central Finland Cable reels in Muurame, Central Finland RG-59 cable reel Shipping Roll trailer carrying cable reels Retractable cable reel. A cable reel is a round, drum-shaped object such as a spool used to carry various types of electrical wires. [1]
Concertina wire or Dannert wire [1] is a type of barbed wire or razor wire that is formed in large coils which can be expanded like a concertina. In conjunction with plain barbed wire (and/or razor wire/tape ) and steel pickets , it is most often used to form military-style wire obstacles .