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Folding chairs called faldstools were treasured as liturgical furniture pieces, used by bishops when not residing at their own cathedral. In the United States, an early patent for a folding chair was by John Cram in 1855. [5] On July 7, 1911, Nathaniel Alexander patented a folding chair [6] whose main innovation was including a book rest. [7]
Samsonite International S.A. is an American [4] premium luggage manufacturer and retailer, with products ranging from large suitcases to small toiletries bags and briefcases. The company was founded in 1910 in Denver , Colorado , United States.
The market for antioxidant stabilisers alone was estimated at US$1.69 billion for 2017, [3] with the total market for all polymer stabilizers expected to reach US$6.5 billion by 2033. In 2023, almost half of all polymer stabilizers sold worldwide were based on calcium, followed by lead (25.1 %), tin (15.4 %), liquid mixed metals (LMM) and other ...
Samsonite is a silver manganese antimony sulfosalt mineral with formula Ag 4 Mn Sb 2 S 6. It crystallizes in the monoclinic crystal system with a typical slender radiating prismatic habit. It is metallic black to steel black with no cleavage and a brittle to conchoidal fracture. In thin fragments it appears reddish brown in transmitted light ...
Generic plugs are often described by their inside diameter, such as 2.1 mm DC plugs. After the two common 5.5 mm OD (Outer Diameter) plugs, the next-most common size is 3.5 mm OD with a 1.3 mm ID (Inner Diameter), usually about 9.5 mm in length, although both longer and shorter versions also exist.
Three-prong plugs do not fit into the older, two-prong receptacles. [7] When used as intended, the ground pin of the 3-wire receptacle is to be connected to a grounded cover screw, or to an external ground. In 1969, Underwriters Laboratories mandated three-prong plugs on major appliances for safety. [7]
There are monofunctional, bifunctional, and polyfunctional stabilizers. Some kinds of stabilizers are: [3] [4] antioxidants these prevent autoxidation of materials and come in 3 primary forms. Oxygen scavengers (primarily phosphite esters such as tris(2,4-di-tert-butylphenyl)phosphite) are commonly used during the initial processing of the plastic.
Many of these plugs are derived from the "double banana" plug, which consists simply of two banana plugs spaced 3 ⁄ 4 inch (19 mm) apart (measured from center to center of each individual plug). The 3 ⁄ 4 inch spacing originated on General Radio test equipment during the 1920s, and their type 274-M dual-plug is a notable example from that ...