40 



Popular Science Monthly 



In spite of a five mile current, one hundred and fifty tons of pipe were laid in eighty hours. The 

 work was carried on without mishap and has held against severe floods and record-breaking tides 



Laying Pipes in a Treacherous 

 New Zealand River 



WITH equipment hastily constructed 

 to meet the difficulties of the occa- 

 sion, a company of engineers laid pipe- 

 lines across one of the swiftest of New 

 Zealand streams, the Teremakau River. 

 This pipe-line is an extension of the 

 Government water-race to supply the 

 Kumura gold fields. The sections of pipe 

 were laid from specially constructed pon- 

 toons, one being joined to the other as the 

 pontoon progressed. The work was carried 

 on without mishaps in spite of a five-mile 

 current. Altogether one hundred and fifty 

 tons of pipe were laid in eighty hours. 



Since the pipe crossing has been installed, 

 the river has experienced a number of severe 

 floods. On one occasion its width increased 

 from six hundred and fifty feet, which is 

 normal, to nearly three thousand feet. 



A Fuel-Oil Burner Which Provides 

 Ideal Combustion 



ANEW fuel-oil burner has been 

 designed by Grover C. Long, of 

 Lakeland, Florida, to eliminate all 

 free oil from the furnace and to give 

 continuous operation, wide range of 

 capacity and as nearly ideal vaporiza- 

 tion and combustion as possible. 



In the illustration the metal body 

 contains a coil and a pipe which con- 

 veys the steam-oil gas to the fur- 

 nace. The adjusting wheel is used for 

 varying the capacity of the coil, and 

 the coil is heated by the steam enter- 



ing at the top of the body and passing 

 around the coil. A guide maintains the 

 coil centrally in the body. A head on the 

 coil has slots through which the oil enters 

 the body after being heated. A valve 

 controls the oil supply, and also allows 

 live 'steam to pass through the coil for 

 cleaning purposes. 



Fuel-oil is admitted into the coil through 

 the oil valve, the coil being heated to a 

 high temperature by the steam admitted 

 at the top of the burner. The oil, in 

 passing through the coil, is heated to a 

 point at or above the flash and is ejected 

 through a series of holes in the head, 

 where it combines with the steam that 

 flows in a different plane at a high velocity, 

 atomizing and vaporizing the hot oil from 

 the coil. 



The vapor thus formed then flows at a 

 reduced velocity along the conveying pipe 

 and finally emerges into the furnace through 

 the tip at the right of the illustration. 



STEAM 

 VALVE 



OIL 



GUIDE 



ADJUSTING 

 WHEEL 

 Detail drawing showing the piping and construction of 

 the fuel oil burner to be used in connection with furnaces 



