250 



REPOBT — 1880. 



0'5 incli pressure, and the triple ones smoky and shapeless flames even at 

 a pressiire of 1 inch. 



Besides other flat-flame burners, Sagg has recently manufactured a 

 large burner for large consumption of gas, which he calls a ' table-top ' 

 burner. This has a flat disc-shaped head with a semispherical centre, 

 in which the slit is formed. Each burner is fitted with a govei-nor. Two 

 of these have been tested with the gas supplied to the governors at the 

 under-mentioned pressures, and the following results obtained : — 



Bronner's burners, already described in the first joart of this report, 

 have also been tested. They are made specially for use for common gas, as 

 well as for cannel gas. The A-top burners are intended for use in globes 

 with common gas ; and the B-top burners for use without globes, or in 

 street lamps, also with common gas. The tops and bottoms of each 

 burner are separately marked, and are iuterchangeable. The A-top bur- 

 ners are made with two sizes of tops and eleven sizes of bottoms. The 

 B-top burners are made with eight sizes of tops and eleven sizes of 

 bottoms. The following results were obtained with the A-top and B-top 

 burners, using 16-candle gas : — 



