Manchester Memoirs, Vol. Ixiii. (1920) No. 5 15 



■"An Egyptian Meteorite." Memoirs, vol. 6i, iqiy. 



" On the Atomic Weight of Tellurium in relation to the Multiple Propor- 

 tions of the Atomic Weights of other simple bodies;." Memoirs, vol. 

 61, iqiy. 



APPENDIX \J. 



Henry Wilde's Chief Patents. 



1858. 



293 Connecting the ends of lightning conductors and submarine telegraph 



cables. 



1861. 



858 Electro-magnetic telegraphs, etc. 



1994 Electro-magnetic telegraphs, etc. 



Specifies several types of generators. 



2997 Magneto-electric telegraphs. 



The momentary currents may be used for telegraphing through 

 uninsulated cables. 



1862. 



3246 Electro-magnetic telegraphs, etc. 



Overhead wires are made by twisting several fine copper wires 

 round a core of steel. To prevent the singing of the wires, 

 they are connected to their supports by thongs of leather, etc., 

 in such a way tliat the thong is maintained at the same tension 

 as the line. 



1863. 



516 Electro-magnetic telegraphs. 



Describes a. magneto with shuttle-wound armature. The poles 

 of the U-shaped permanent magnets are uppermost. The 

 alternating currents are produced with too great rapidity for use 

 in telegrap'h lines, so tliey are turned in one direction by a com- 

 mutator and then reversed by a more slowly revolving commu- 

 tator before they are sent to the step-by-step telegraph instru- 

 ments. 



3006 Electric telegraphs. 



Iron wires are varnished and placed within iron pipes. The 

 wire are supported and separated by perforated earthenware 

 cylinders. Special insulated joints are provided. To prevent 

 the pipes from being Hooded, they are laid on an incline and 

 drained by syphons. Junction boxes are provided where neces- 

 sary. 



The generator of No. 516 (1863) is used for signalling 

 through uninsulated submarine conductors. Electro-magnets 

 may be used in place of tlie permanent magnets and excited by 

 a voltaic battery or a small magneto. The generators may be 

 used for producing the electric light, etc. 



1200 & 



2764 Electric telegraphs. 



^865. 



141 2 Producing and applying electricity, etc. 



The current may be used to produce the heat necessary for the 

 working of metals, by connecting the terminals to the insulated 

 rolls between which the bar or plate to be heated passes.. 



The machines may be used to prevent the fouling of ships' 

 bottoms, a current being passed down the copper, etc., bottom 

 oi the ship through water to insulated metal in the water 



2762 Electric telegraphs. 



Generator armature of cast iron with a slot extending through 

 it for three-quarters of its length for the prevention of eddy- 

 currents. Wound with ribbon sheet copper and sheet gutta- 

 percha, and surrounded with strong bands. 



