arch beam

noun

1. a crowned metal beam, as of the deck of a ship.

Example Sentences

"When I first saw that ironworker crawling up on that high arch beam, a rainbow shined down and showed me a use for my talents," he says, sounding more like a dreamy artist than a hardened attorney making opening arguments.

From Time Magazine Archive

Then shall that arch beam upon us like God's bow of promise in the cloud, proclaiming that this land shall never be deluged by the surges of civil war—that it never shall be inundated by flames and blood.

From Project Gutenberg