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Pyx with Arabesques in Quatrofoil Frames, c. 13th century. A pyx or pix (Latin: pyxis, transliteration of Greek: πυξίς, boxwood receptacle, from πύξος, box tree) is a small round container used in the Catholic, Old Catholic, Lutheran and Anglican Churches to carry the Eucharist, to the sick or those who are otherwise unable to come to a church in order to receive Holy Communion. [1]
NEMA 5-15P plug and NEMA 5-15R receptacle (different scales, blade spacing is 0.5 inches (12.7 mm) for both.) Each receptacle also accepts an ungrounded plug, whether polarized or unpolarized. Typical 5-15R residential receptacle 5-20R T-slot receptacle mounted with the hole for the ground pin at the top. The neutral connection is the wider T ...
An outlet is defined by the NEC as "a point in the wiring system at which current is taken to utilization equipment". [1] This definition includes receptacles, lighting, motors, etc. Ordinary switches control but do not consume electricity, and therefore are not defined as outlets in this sense.
The usual Soviet apartment of the 1960s had very few sockets, so this design was very useful, but somewhat unsafe; the brass cylinders of the secondary socket were uncovered at the ends (to allow them to be unscrewed easily), recessed by only 3 mm, and provided bad contact because they relied on the secondary plug's bisected expanding pins.
Harvey Hubbell had patented the parallel blade plug in 1913, and patented a polarized version in 1916. He also patented the T-slot single outlet in 1915, and a duplex T-slot outlet in 1916 both meant to take his older 1904 tandem and newer parallel plug design. (Single: U.S. patent 1,146,938; Duplex: U.S. patent 1,210,176). Prior to the 1930s ...
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A receptacle tester being used to check for some types of improper wiring of an outlet. For this particular tester, proper wiring is indicated by the two yellow lights. The outlet tester checks that each contact in the outlet appears to be connected to the correct wire in the building's electrical wiring. It can identify several common wiring ...
The cables ended with PV connectors that met the definition of a convenience receptacle, meaning they could be (legally) connected together by anyone. Two connectors became somewhat common during this period, the Radox connector and MC3 connector , both of which essentially looked like weather-sealed phono jacks .