spelter

A piece of metal was cut from the pattern and the edges were brought together and brazed with spelter.

The "spelter," which is really only finely granulated fusible brass, is used for brazing iron joints.

The second is "spelter," or soft fusible brass, and the third is an alloy of silver and brass called silver solder.

This process resembles that last described, but instead of spelter an alloy of silver, copper, and zinc is employed.

Brazing is done by clamping the work in the jaws and heating until the flux, then the spelter has melted and run into the joint.