Safety device for gas burners

A safety device adapted for use with a gas combustion apparatus having a pilot which is proven by a thermocouple, comprising,

• a valve body having an inlet opening adapted to be connected to a source of gas under pressure, outlet opening adapted to be connected to a main burner of the combustion apparatus, and a second outlet opening adapted to be connected to a pilot,
• safety valve means connected between said inlet opening and said outlet openings to shut off gas flow when in an inoperative position and held in an operative position by an electromagnetic device energized by a pilot heated thermocouple,
• main valve means connected in series with said safety valve means,
• manual means movable in an axial and rotative direction connected to said main valve means axially from said inoperative position to said operative position and for rotating said main valve means from an off to on position,
• first means connected to said manual means for preventing said manual means from rotating said main valve means to said on position unless said manual means is in said operative position, and
• first pin means dropping in a groove in line with said safety valve means in said body when said safety valve means is in said operative position for preventing axial movement of said manual means to said operative position and thus said manual means is not in a position for rotative movement of said main valve means from said off position to said on position.