Naut. Obs. Understood to have been bulk-heads across the fore and after parts of the vessel.
1622. R. Hawkins, Voy. S. Sea (1847), 206. I hold nothing [i.e., no artillery] more convenient in shippes of warre, then fowlers and great bases in the cage workes, and murderers in the cobridge heads; for that their execution and speedie charging and discharging, is of great moment.
1855. Kingsley, Westw. Ho! II. xii. 322 (D.). A shelter, which was further increased by strong bulk-heads (cobridge-heads) across the main deck below.