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A truss was a bundle of hay or straw. In England a truss was equivalent to 56 lbs of old and 60 lbs of new hay; a truss of straw was 36 lbs.
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In engineering, a cantilever is a projecting beam, truss, or bridge unsupported at the outer end; one which overhangs.
In engineering, the term member is applied to any essential part of a framed structure, such as a post, tie rod, strut, bridge truss etc.
PETA is an abbreviation for Parabolic Expandable Truss Antenna
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In sailing, the clue is the lower corner of a square sail, and hence clue-lines and clue-garnets, are tackles to truss the clues up to the yard.
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In architecture a brace is a piece of material used to transmit, or change the direction of, weight or pressure; any one of the pieces, in a frame or truss, which divide the structure into triangular parts. It may act as a tie, or as a strut, and serves to prevent distortion of the structure, and transverse strains in its members. A boiler brace is a diagonal stay, connecting the head with the shell.
In scaffolding, a brace is a tube inserted diagonally in a scaffold to give stability and to prevent the tendency for the framework to fold.
In architecture a jack truss is a minor truss used in a hip roof, where the roof does not have its full section.
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In architecture, a king post is the middle post of a roof - standing vertically between the base and apex of a triangular roof truss - standing in the tie beam and reaching up to the ridge; it is often formed in to an octagonal column with capital and base, and small struts or bases which are slightly curved, spreading from it above the capital to some other timbers.
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In architecture a main couple is the principal truss in a roof.
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In architecture a principal is the construction which gives shape and strength to a roof, generally a truss of timber or iron, but there are roofs with stone principals. The term is also loosely applied to the most important member of a piece of framing.
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The Probert Encyclopaedia was designed, edited and programed by
Matt and Leela Probert
©1993 - 2009 The Probert Encyclopaedia
Southampton, United Kingdom
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