Incandescent mantle for gas burner, has closed upper side with opening that is intended to pass centering pin for placing mantle on seat destined on mantle holder having two branches

摘要

The mantle (a) has a closed upper side (b) on which an opening (c) is made, where mantle is cylindrical in shape. The opening is intended to pass centering pin for placing the mantle on a seat destined on a mantle-holder having two branches. Diameter and length of the mantle corresponds to diameter and service length of the mantle-holder. A cylindrical part of the holder is stopped between a seat of the mantle and a point.