Snap flask

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(Molding) a flask for small work, having its sides separable and held together by latches, so that the flask may be removed from around the sand mold.

See also: Snap

References in periodicals archive ?
After stripping the mold, the snap flasks remained at the machine for reuse and flaskless molds were delivered onto a mold handling system for pour-off and cooling prior to shakeout.