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Stay-rod.


1. (Steam-engine.) a. One of the rods supporting the boiler-plate which forms the top of the fire-box, to keep the top from being bulged down by the pressure of steam.

Staysails.

b. Any rod in a steam-boiler which supports plates against internal strain by connecting parts exposed to rupture in contrary directions.

c. A tension-rod in the frame of the marine steam-engine.

2. A tie-rod in a truss or building, which prevents the spreading asunder of the parts connected. [2318]

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