The general plan of piping is shown in Fig. 212. The generator G is in this case a “water to carbide” machine and is shown connected to the kitchen range, as well as the pipe system which may be traced to the lamps in the different rooms, to the porch lights and to the boulevard lamp in front of the building.
Fig. 213.—Acetylene gas burner.
Fig. 214.—Electric igniter for acetylene gas burners.
Fig. 215.—Electric igniter for acetylene gas burners.
The type of burner used in acetylene lamps is shown in Fig. 213. The gas issues from two openings to form the jet as it appears in the engraving. These burners are made in sizes to consume ¼, ½, ¾, and 1 foot per hour depending on the amount of light demanded.
Gas Lighters.
—The acetylene gas jets are lighted ordinarily with a match or taper but electric igniters are often used for that purpose. Electric lighters for acetylene lamps are practically the same as those used with ordinary gas lamps but they must be adapted to the type of burner on which they are used. Electric igniters that are intended to be used with lamps placed in inaccessible places are different in construction from those within reach. In Figs. 214 and 215 are illustrated two forms of igniters that are intended to be used on bracket or pendent lamps. They differ in mechanical construction to suit two different conditions. Fig. 214 is an igniter in which is also included the gas-cock. The gas is lighted by pulling a cord or chain attached to the lever L. The movement of this lever turns on the gas and at the same time brings the piece C in contact with the wire A to complete an electric circuit. As the contact between these two pieces is broken, a spark is formed that ignites the gas escaping from the burner at B. On releasing the lever a spring returns the piece C to its original position. The light is extinguished by a second pull of the lever.