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A 16th-century English folding table. The history of the folding table may date back as far as ancient Egypt. By the Colonial and Victorian eras, the tables were common. [1] During the 20th century, folding tables became an inexpensive item manufactured and sold in large quantities. In the 1940s, Durham Manufacturing Company was marketing a ...
Butler tray hinge Folds to 90 degrees and also snaps flat. They are for tables that have a tray top for serving. Card table hinge Mortised into edge of antique or reproduction card tables and allow the top to fold onto itself. Carpentier joint A hinge consisting of several thin metal strips of curved cross section. Drop-leaf table hinge
A TV tray table, TV dinner tray, TV table, or personal table is a type of collapsible furniture that functions as a small and easily portable, folding table. These small tables were originally designed to be a surface from which one could eat a meal while watching television. The phrase tray-table can also refer to a fold-away tray, such as ...
A butler's tray often has a gallery, or deeper surround, handles on the long sides to facilitate carrying (usually cut into the surround), and a portable stand with folding legs. It is used for the service of drinks and generally serves as a convenient side table. A cafeteria tray is used for carrying items in a cafeteria.
Attempts have been made to increase the safety of bridges with pin and hanger assemblies by adding some form of redundancy to the assembly. Retrofits that add redundancy to pin and hanger assemblies include adding a "catcher's mitt"—a short steel beam attached to the bottom of the cantilevered girder that extends out beneath the suspended girder to "catch" the suspended girder should ...
F. B. Rogers Silver Co. was a silversmithing company founded in Shelburne Falls, Massachusetts in 1883. It was acquired by Edmund W. Porter and L.B. West, who incorporated the company and moved manufacturing operations to Taunton, Massachusetts in 1886.
In 1971, A. J. Wildman introduced the Edgelok bracket which was the first type of self-ligating bracket that enjoyed commercial success. All these brackets were passive in type so far. In 1970s, a new system called SPEED appliance was introduced into the market. This was introduced by Dr. G. Herbert Hanson of Hamilton, Ontario, Canada.
A scissors mechanism uses linked, folding supports in a criss-cross 'X' pattern. [1] The scissor mechanism is a mechanical linkage system used to create vertical motion or extension. It consists of a series of interconnected, folding supports that resemble the shape of a pair of scissors, hence its name.
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