Jacks

Jacks

A tool with two metal arms joined at one end by a spring. The distance between the arms is controlled by the glassworker, who uses jacks for a variety of purposes while shaping the parison (for example, to form the mouths of open vessels). This tool is also known as a borsella or pucellas.

Alternate Spellings: 
pucella
pusella
pusellas
Term Variations: 
Pucellas
Borsella