“helmet” in the Douay-Rheims Bible

The word helmet appears 8 times in the Douay-Rheims Bible. The first 8 matching verses are shown below.

1 Kings 17:5 And he had a helmet of brass upon his head, and he was clothed with a coat of mail with scales, and the weight of his coat of mail was five thousand sicles of brass:
1 Kings 17:38 And Saul clothed David with his garments, and put a helmet of brass upon his head, and armed him with a coat of mail.
Wisdom 5:19 He will put on justice as a breastplate, and will take true judgment instead of a helmet:
Isaias 59:17 He put on justice as a breastplate, and a helmet of salvation upon his head: he put on the garments of vengeance, and was clad with zeal as with a cloak.
Ezechiel 23:24 And they shall come upon thee well appointed with chariot and wheel, a multitude of people: they shall be armed against thee on every side with breastplate, and buckler, and helmet: and I will set judgment before them, and they shall judge thee by their judgments.
Ezechiel 27:10 The Persians, and Lydians, and the Libyans were thy soldiers in thy army: they hung up the buckler and the helmet in thee for thy ornament.
Ephesians 6:17 And take unto you the helmet of salvation and the sword of the Spirit (which is the word of God).
1 Thessalonians 5:8 But let us, who are of the day, be sober, having on the breast plate of faith and charity and, for a helmet, the hope of salvation.