TRUNNIONS, in guns. Two cylindric pieces of metal in a gun, mortar, or howitzer, which project from pieces of ordnance, and by which they are supported upon their carriages. See [Cannon].
Trunnion-plates, are two plates in travelling carriages, mortars, and howitzers, which cover the upper parts of the side-pieces, and go under the trunnions. The French have made improvements on this article; they have two pair of trunnion plates; one pair, in which the gun is placed for action; the gun is removed into the other for travelling; and are so denominated. See Am. Mil. Lib.
TRUSQUINS, Fr. Tools made use of by carpenters and joiners. They are called trusquins d’assemblage, and trusquins à longue pointe.
TRUSS. A bundle; as a bundle of hay or straw. Any thing thrust close together. Trusses of this description have been sometimes used in military affairs. The men carrying them in front for the purpose of deadening shot.
Truss of forage, is as much as a trooper can carry on his horse’s crupper. See Spun Hay.
To TRUST. To give credit to, on promise of payment. No soldier shall be liable to be arrested for a sum under 20l. and then an oath of the debt must be made before a magistrate.
TRUSTY. Honest; faithful; true; fit to be trusted. This word is used in the preamble of military commissions, &c. viz. To our trusty and well beloved.
TUBE, Fr. A pipe, a siphon. It is particularly applied to optical instruments.
Tubes of tin plates are the best for service. Tubes must pass through a guage of ²⁄₁₀ of an inch diameter. The composition is mealed powder, mixt up stiff with spirits of wine. They are made up in bundles of 100 each.
Length of tin tubes.