2W 



REPORTS ON THE STATE OF SCIENCE 



Electric furnaces are being employed in the following cases: — 



(1) To replace crucibles. The gain is then one of cost of produc- 

 tion. 



(2) For foundries. Electric furnaces are being used in many 

 foundries. At Georg Fischer's and Schaffhausen they are the only 

 furnaces employed, and Lake and Elliott of Braintree are now making 

 most of their steel electrically. 



(3) To replace Swedish Bessemer steel, and for steel of axle and 

 tyre quality. 



(4) For weldless tubes. The Mannesmann Company have Heroult 

 furnaces in Germany and Italy. 



(5) In combination with Talbot furnaces. Owing to the fact that 

 the heat need not be sufficiently great for teeming on transference to 

 the electric furnace, the output of the Talbot and the life of the lining 

 and roof are said to be largely increased. This will be the procedure 

 at Skinningrove for making rails. 



(6) For melting turnings, especially high-speed turnings. These 

 make excellent scrap for the electric furnace. Nickel scrap can be 

 melted without any loss of nickel. 



There are two aspects of the present position of a comparatively 

 new industry. One is the progress made during the year, and an 

 endeavour has been made to present that point of view. Another aspect 

 is the actual state of the industry at present and that can best be judged 

 by the accompanying two tables representing the furnaces, capacities, and 

 kind of work done by all the furnaces under the care of the two prin- 

 cipal firms already named. A very interesting item in the induction 

 furnace list is the entry representing the fact that the Kjellin furnace 

 has been adopted for melting the metal for the manufacture of those 

 delightful though expensive culinary vessels of pure nickel so much 

 appreciated now. 



List of He mull Furnaces in Construction or Operation. 



Country 



Firm 



Size of 

 Furnace 



Method of Melting 



England 



A 1(^1 ria 



Belgium 



Edgar Allen & Co., Ltd.. 

 Sheffield. 



Skinningrove Iron Co., York- 

 shire 



Yiekers, Ltd.. Sheffield. 



Thos. Firth & Sons, Ltd., 



Sheffield. 

 Lake & Elliott, Braintree. 

 Kaernthner Eisen & Stahl Werke. 

 Gebr. Bohler & Cie. A.G. J 



Kapfcnberg \ 



Binder Lapp, Rottenmann, 



Works, Steiennark. 

 Banner & Co., Jndenberg. 

 Societe des Usines Metallurgiquo- 



du Hainaut. Coultret. 

 Societe Anonyme Ougree-Mari- 



haye. Near Liege. 



Tons 



i 



-2 



~2 



2.V 

 5 



2£ 



4 



6 



2 

 5 



Tilling basic open- 



heartb. 

 Talbot. 



Melting sc rap in electric 

 furnace. 



Basic open-hearth. 



