Explosives . r the head, arms, and breast. Thehoods are fitted with strong glass windows, and are connected by light rubbertubing to a supply of pure compressed air. Piti-washii g. After a given quantity of gun-cotton has been drowned,the water in the tanks is run off and the gun-cotton thrown on to drainingtallies forming part of the drowning tank. It is then loaded into the pre-washing centrifugals, the acid water wrung out, and washed for a few minutes 174 EXPLOSIVES with cold water from a hose to remove adhering acid. Xo special precautions,however, are taken to remove all acid at thi>
Explosives . r the head, arms, and breast. Thehoods are fitted with strong glass windows, and are connected by light rubbertubing to a supply of pure compressed air. Piti-washii g. After a given quantity of gun-cotton has been drowned,the water in the tanks is run off and the gun-cotton thrown on to drainingtallies forming part of the drowning tank. It is then loaded into the pre-washing centrifugals, the acid water wrung out, and washed for a few minutes 174 EXPLOSIVES with cold water from a hose to remove adhering acid. Xo special precautions,however, are taken to remove all acid at thi> >t;iLr >n. The output per >hift consisting of seventeen men is therefore : 4-5 X 159 X 62 - - 100 = 3549 • iii-nt Apparatus (from An Gun-cotton has been made at Waltham Abbey by Nathan and Thom- - displacement process since August 1905. The installation consists of a number <»f units of four pans worked together. The pans are of earthenware and circular. 3 feet •» inches in diameter, and 1<» inch- t the side of the pan ; the bottom has a fall <»f 2 indie- to the outlet, which is J-inch in diaraThey are supported on earthenware pedestals about 1 foot 10 inches abovethe floor level. The four pans are connected together by lead pipes, and theseare again connected to the nitrating acid supply pipe, t the strong and weakwaste acid pipes, and to a waste water pipe, through a Lr;niLrc-b.\. where the 1 Pans of acid-resisting iron are also being tried. 1916, MANUFACTURE OF NITROCELLULOSE 175 rate of flow is determined whilst the waste acids are being run off. Gravitiesof the acids are also taken in this box. The process proceeds as follows : A small perfor
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Keywords: ., bookcentury1900, bookdecade1910, bookidexp, booksubjectexplosives
