| 释义 |
ˈrag-bolt
[? f. rag n.1 6.]
A bolt having barbs directed towards the head, so that it cannot be easily withdrawn after it is driven in; a jag-bolt or barb-bolt.
1627Capt. Smith Seaman's Gram. ii. 5 Rag bolts are so iaggered that they cannot be drawne out. 1691T. H[ale] Acc. New Invent. 47 The Ragg-bolts eaten away to nothing. 1769Falconer Dict. Marine (1776) Y 2, A rag-bolt is retained in it's situation by..barbs. 1836in Civil Eng. & Arch. Jrnl. (1838) I. 150/2 Additional ties were..put in at every other oak pile, and.. secured down by rag-bolts.
Hence ˈrag-bolt v. trans., to fasten down by rag-bolts.
1836in Civil Eng. & Arch. Jrnl. (1838) I. 150/2 It even became necessary..to place stringers outside of the sheet piles..and to rag bolt them down. |