pull crack

pull crack

[′pu̇l ‚krak]
(metallurgy)
A crack in a casting caused by contraction strains during cooling and resulting from the shape of the casting.
References in periodicals archive ?
Railway enthusiasts rescued the historic Jubilee Class locomotive, which was built at Crewe 86 years ago, and loving restored her to the gleaming condition of when she used to pull crack LMS expresses through the town.