Hand-screw Clamp
A pair of jaws regulated by two hand-screws, used principally by wood-workers, but a very handy contrivance for binding work in the foundry, such as core-boxes, strips of pattern, etc.
Twelve hundred entries from the golden age of cast metal — how bells are founded, why brass is not bronze, what a cupola melts and a core withstands — by Simpson Bolland, the trade's great teacher.
A pair of jaws regulated by two hand-screws, used principally by wood-workers, but a very handy contrivance for binding work in the foundry, such as core-boxes, strips of pattern, etc.