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Round vault doors were popular in the early 20th century and are iconic images for a bank's high security. They fell out of favor due to manufacturing complexities, maintenance issues (door sag due to weight) and cost, but a few examples are still available. [8] [9]
The undersurface, or soffit, may be generated from a series of pointed, rather than round, arches. Also known as a cross vault. An architecture vault produced by the intersection at right angles of two barrel (tunnel) vaults. Sometimes the arches of groin vaults may be pointed instead of round. Handkerchief vault – See Dome; Inflatable vault [1]
An entrance door for excluding drafts from an interior of a building. A revolving door typically consists of three or four doors that hang on a center shaft and rotate around a vertical axis within a round enclosure. Rib vault The intersection of two or three barrel vaults. Ridge board
A revolving door typically consists of three or four doors that hang on a central shaft and rotate around a vertical axis within a cylindrical enclosure. To use a revolving door, a person enters the enclosure between two of the doors and then moves continuously to the desired exit while keeping pace with the doors.
Mosler built the vault formerly used to display and store the Charters of Freedom: the US Constitution, Declaration of Independence, and the Bill of Rights. Mosler also built the gold vaults for the United States Bullion Depository at Fort Knox. [1] [8] Despite the weight, each 58-ton blade could be opened and closed manually by one person. [9 ...
A keystone (or capstone) is the wedge-shaped stone at the apex of a masonry arch or typically round-shaped one at the apex of a vault. In both cases it is the final piece placed during construction and locks all the stones into position, allowing the arch or vault to bear weight.
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