† wrain-bolt
variant of ring-bolt. Also † wrain-stave, a staff for inserting in an eye of this.
| 1750 T. R. Blanckley Naval Expos. 17 Wrain Bolts. [Each] has a ring at one End for a Staff to go through, [etc.]. Ibid. 190 Wrain Staves are a Sort of thick Billets, tapered so at each End that they may go into the Ring of the Wrain Bolt. [Hence in Rees' Cycl. (1819), Young Naut. Dict. (1846), Smyth Sailor's Word-bk. (1867), etc.] |
Hence † ˈwraining-bolt, -staff. Obs.—1
| 1769 Falconer Dict. Marine (1776), Antoit, a crooked instrument of iron, used to bind the side-planks round the timbers in ship-building. The English artificers perform this operation by wraining-bolts and staffs. |