ON THE DEVELOPMENT OF LIGHT FROM COAL-GAS. 113 



Bray's "Regulator" Union Gas Jets for Cannel-Gas. 



In both series of the special burners, in which the pressure is much 

 reduced, the best results are obtained at 1 inch pressure, while at - 5 inch 

 the flames are sluggish, and in some cases show a tendency to smoke. 



Mr. Holdsworth, of Bradford, has introduced a simple arrangement 

 which he calls a gas feeder, which has been adopted rather extensively in the 

 manufacturing towns of Yorkshire. It is simply a little wedge-shaped piece 

 of lead pierced in the centre with a hole the area of which is less than that 

 of the holes in the burner, and this is fixed in the gaspipe several inches 

 from the burner. Several sizes are made to suit varying circumstances of 

 local pressure, as well as different sizes of burners, and, if fitted up by an 

 intelligent workman, they accomplish the end in view very successfully. 



Bray's " Special " Union Jets for General Use. 



