Friction primer

a tube used for firing cannon by means of the friction of a roughened wire in the friction powder or composition with which the tube is filled.

See also: Friction

References in periodicals archive ?
An artillery shell fragment, pocketknife, percussion caps, and friction primers (recovered from the monument site during construction of the memorial) were also enclosed as reminders of what had occurred there in 1863.
From the oxidized artillery shell fragment, a pocketknife, percussion caps, friction primers, and the 1920 coins were also recovered from the encrustation that had formed, binding all metal items together.