Thompson holding a match plate for a model railroad frog. How many
foundry related items can you find in this photo?
match plate is a split pattern mounted to
both sides of a flat surface that fits to a cope and drag. It
can be complete with a gating system
to save time.
The purpose is to speed up mold making.
In use, the match plate is placed in between the cope and drag and
rammed with molding sand. The match plate is removed, the sprue cut,
and the mold closed for pouring.