Long ton
Defined in 1 dictionary — Black's (1910)
Black's Law Dictionary
Henry Campbell Black, M.A. · 1910
A measure of weight equivalent to 20 hundred-weight of 112 pounds each, or 2,240 pounds, as distingished from the "short" ton of 2,000 pounds. See Rev. St. U. S. § 2951 (U. S. Co.mp. St. 1907, p. 1941). But see Jones v. Giles, 10 Exch. 119, as to an English custom of reckoning a ton of iron "long weight" as 2,400 pounds.
Defined under Long in Black's Law Dictionary.