'Jam weld' definitions:

Definition of 'Jam weld'

From: GCIDE
  • Jam \Jam\, n. [Prob. fr. jam, v.; but cf. also Ar. jamad ice, jelly, j[=a]mid congealed, jamd congelation, ice.] A preserve of fruit boiled with sugar and water; also called jelly; as, raspberry jam; currant jam; grape jam. [1913 Webster]
  • Jam nut. See Check nut, under Check.
  • Jam weld (Forging), a butt weld. See under Butt. [1913 Webster]