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Gas lamps gradually started replacing oil street lamps in the United States, beginning in the first quarter of the 19th century. [ 3] The first street in the world to be illuminated by gaslight was Pall Mall in London, starting in 1807. [ 1][ 5] The first US city to use gas street lights was Baltimore, starting in 1817. [ 4]
Stanchions ( balusters or bollards) are also the upright posts inserted into the ground or floor to protect the corner of a wall. In event management a stanchion is an upright bar or post that includes retractable belts, velvet ropes, or plastic chains, sometimes in conjunction with wall-mounted barrier devices, barricades, and printed signage ...
Other common utility pole materials are aluminum, steel and concrete, with composites (such as fiberglass [citation needed]) also becoming more prevalent. [11] One particular patented utility pole variant used in Australia is the Stobie pole, made up of two vertical steel posts with a slab of concrete between them.
A street light, light pole, lamp pole, lamppost, street lamp, light standard, or lamp standard is a raised source of light on the edge of a road or path. Similar lights may be found on a railway platform. When urban electric power distribution became ubiquitous in developed countries in the 20th century, lights for urban streets followed, or ...
Lustron houses are prefabricated enameled steel houses developed in the post- World War II era United States in response to the shortage of homes for returning G.I.s by Chicago industrialist and inventor Carl Strandlund. Considered low-maintenance and extremely durable, they were expected to attract modern families who might not have the time ...
Square (tool) A square is a tool used for marking and referencing a 90° angle, though mitre squares are used for 45° angles. Squares see common use in woodworking, metalworking, construction and technical drawing. [ 1] Some squares incorporate a scale for measuring distances (a ruler) or for calculating angles.
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