Vachette clasp

Va`chette´ clasp


1.(Veter.) A piece of strong steel wire with the ends curved and pointed, used on toe or quarter cracks to bind the edges together and prevent motion. It is clasped into two notches, one on each side of the crack, burned into the wall with a cautery iron.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.