Tighten quoins.
To fasten up quoins with the fingers preparatory to locking up, or in hot weather to tighten up quoins to prevent formes falling out.
To fasten up quoins with the fingers preparatory to locking up, or in hot weather to tighten up quoins to prevent formes falling out.
Entry taken from Printers' Vocabulary, by Charles Thomas Jacobi, 1888.