File:Explosives (1917) (14779392502).jpg

Identifier: explosives01mars (find matches)
Title: Explosives
Year: 1917 (1910s)
Authors: Marshall, Arthur, 1873-
Subjects: Explosives
Publisher: Philadelphia, P. Blakiston, 1917
Contributing Library: NCSU Libraries
Digitizing Sponsor: NCSU Libraries

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d pulled off the plug. The flow of the nitro-glycerine can be controlled_ the tube with the hand. The skimming c, is al>o of soft rubber ; the hard and heavy skimmer has been done away with. This skim-ming tube has since been improved by widening it at the mouth funnel-wiseand providing it with a rubber handle. It has __ 1 that the explosions in washing tank- may have d by the generation of electricity by the friction of the air when passingthrough the jets in the air-pipes. But air or other gas cannot produce elec-tricity by fri • - - Bhown by Faraday.1 It is only when the air carrieswith it parti lid matter or liquid globules that any charge is formed,and then only if the solid or liquid matter be itself non-conducting. Thenitro-glycerine is surrounded on all sides by conductors : on its upper surfaceion. and everywhere else by lead, so that any charge would berapidly discharged, especially as the nitroglycerine is kept in motion and is 1 Experimental - Will.. PhU January 1843.
Text Appearing After Image:
Fig. 40. Nitro-glycerine Washing Tank „ Air-pipe • Skinxming tube for wash-waters ,/, Out lit pipe for nitro-glycerine • Hollow lead plug for end of (/ //, Holes in ends of branches of air-pipe 214 EXPLOSIVES mixed with drops of the soda solution. Experiments carried out at Ardeerfailed to detect any charge of electricity.1 The pre-wash tank u structed in the same way as the final washingtank : the principal difference lies in the arrangements made for conductingaway the fumes. The air rising from the pre-wash tank carries some nitricacid with it as well as fume- of the nitric esters of glycerine : the tanka fixed lead cover with an opening, which i- kept covered with a small rubberflap, and there is a fume pipe through winch the fumes are drawn by meansof a jet of air or .-team. From the washing tank the air carries away onlyvapour of water and mtro-glvcerine.. consequently the lead top is unnecessary :it is merely provided with a hood of rubber cloth shaped like a large invert

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