Dean instinctively sniffed the air for the smell of cordite but his nostrils picked up only the scent of alcohol.
When cordite replaced black powder, and the gun sights and all in front of the gun were no longer obscured by hanging clouds of smoke, it became a desideratum, and, as the automatic sight, it was reintroduced by Sir G.
3000 ' '2500 2000 1500 1000 3 01_43_ 000 [[Cordite 0.35 Cordite `- 0.2 Cordite]] ___------- p.i -Cordite------ 0.05 Cordite Rifle Cordite 0.4 Cordite 27.5 lbs.
0.35 22 „ 0.3 „ 20 i, 0.2 „ 17 „ 0.113 „ 0.059.5 „, , Rifle, , 9 „ Cordite 2400 2200 2000" ?
Of lump of solid lead = 6 1 ' 2 = °7403 while in the case of a bundle of cylindrical sticks of cordite, (s) G.D.
Of charge of cordite 1 S.G.
Of stick of cordite = 6 3 = 0 9067.
In., the work done is 2 7.73 p Av inch-tons, or (7) DE =2.31 pzv foot-tons; and the differences of being calculated from the observed values of p, a summation, as in the ballistic tables, would give E in a tabular form, and conversely from a table of E in terms of v, we can infer the value of p. On drawing off a little of the gas from the explosion vessel it was found that a gramme of cordite-gas at o° C. and standard atmospheric pressure occupied 700 ccs., while the same gas compressed into 5 ccs.
Charge: weight 13 lb 4 oz.; gravimetric density 55.01/0.504; nature, cordite, size 30.
But the shot advances during the combustion of the cordite, and the chief problem in interior ballistics is to adjust the G.D.
Comparing this time with the experimental value of the time occupied by the cordite in burning, a start is made for a fresh estimate and a closer approximation.
Assuming, however, that the agreement is close enough for practical requirement, the conbustion of the cordite may be considered complete at this stage P, and in the subsequent expansion it is assumed that the gas obeys an adiabatic law in which the pressure varies inversely as some mtn power of the volume.
It is found experimentally that m = 1.2 is a good average value to take for cordite; so now supposing the combustion of the charge of the 6-in.
(See Ex Plosives.) The explosive cordite is adopted in the British service; it derives the name from its appearance as cord in short lengths, the composition being squeezed in a viscous state through the hole in a die, and the cordite is designated in size by the number of hundredths of an inch in the diameter of the hole.
Thus the cordite, size 30, of the range table has been squeezed through a hole 0.30 in.
He was president of the Chemical Society in 1897, and of the British Association in 1902, served on the Balfour Commission on London Water Supply (1893-1894), and as a member of the Committee on Explosives (1888-1891) invented cordite jointly with Sir Frederick Abel.
There are cordite and explosives works, established by Messrs Kynoch of Birmingham, England.
This work to an important extent prepared the way for the "smokeless powders" which came into general use towards the end of the 19th century; cordite, the particular form adopted by the British government in 1891, was invented jointly by him and Professor James Dewar.
It is readily soluble in water, alcohol, ether, &c. In addition to its application in the cordite industry, it is used in the manufacture of chloroform and sulphonal, and as a solvent.
Attention was drawn in the House of Commons to the insufficient supply of cordite provided by the war office, and the Housenotwithstanding the assurance of the war minister (Sir Henry Campbell-Bannerman) that the supply was adequateplaced the government in a minority.