394 



♦ KNOWLEDGE ♦ 



[Mat 8, 1885. 



ELECTRIC LIGHT INSTALLATIONS AT THE INVENTIONS EXHIBITION. 



* This exhibit, it is feared, will not be made, as the firm has not complied with the stipulations made by the Commissioners. 



by the inventor, Josepli Wilson Swan, of Bromley, Kent, 

 illustrating all the various types of these lamps, their 

 special features and various practical applications. 



Numerous specimens of the well-known ordinary Swan 

 lamp are shown in dilierent styles of ornamental fittings, 

 the cut glass electroliers and pendants being lent by IMessrs. 

 Osier, and the brass fittings by Messrs. Faraday and 

 Messrs. Winfield. 



A novelty in the use of incandescent lamps shown here 

 consists of an orange-tree, in which the oranges are illumi- 

 nated internally by Swan lamps. A surgical lamp for 

 illuminating the internal cavities of the living body during 

 operations is also exhibited, together with specimens of 

 miners', divers', microscope, dental, and fairy lamps. 

 Among Mr. Swan's recent inventions here shown, are an 



electric meter, consisting of the combination of a clock and 

 a galvanometer, which indicates on dials, similar to those 

 of a gaff-meter, the amount of electricity used by each con- 

 sumer ; and specimens of a new filament, for making the 

 carbons of incandescent lamps, which is produced from a 

 liquid by pressure through a die. This latter invention is 

 patented, and is the property of the Edison it Swan 

 Company. 



Other recent inventions of Mr. Swan's, also exhibited, 

 are improved safety catches, new designs of switches, sub- 

 ways for electric light mains, and improvements in storage 

 batteries. There is also to be .seen at this stand a testing 

 apparatus ilhLstrating the effect of different electric potential 

 on the light given by the lamps. 



The three arches in the middle of the E.ist arcade on 



