Fabric cordeau

Fabric Cordeau. A detonating fuse made from tubes or woven fabric filled with NC, TNT, PETN, etc. See Cord, Detonating in Vol 3, p C529-R and under Detonating Cords in Vol 3 p D103-R... 

Eclair. A French detonating cord ("cordeau detonant ), consisting of a 5mm diam core of PETN (9.9g per meter) and two white threads serving as pilots. The core is covered with a thin cellulosic film and fabric. Its external diam is 5.5mm and detonation rate 6355 to 6745m/sec. Earlier French cords are listed in Encycl, Vol 3, p C530-L Refs 1) A. LeRoux, MP 32, 203-04(1950)... 

A Hexanitromannite Cordeau, proposed by Sebert Fritsch to the Poudrerie a Sevran-Livry, developed a vel of deton of 7000 m/sec, but was considered too expensive too sensitive for coml use (Refs 3 5) More recently the SA D Explosifs et de Produits Chimiques manufd a Cordeau consisting of flat hollow Pb bands filled with Tetryl. It is claimed that flat Cordeau is easier to introduce into a bore-hole than round Cordeau. Other models of Fr Detonating Cords employing a PETN core a fabric cover are called Cortex, OD 4.8mm, gms of expl/m 8 vel of deton 5990-6410 m/sec and Eclair, OD 5.5 mm, gms of expl/m 11 vel of deton 6355-6745 m/sec. Primacord (American) had OD 5.2... 

Cortex, A Fr detonating cord (cordeau detonant) consisting of PETN (Core) in a fabric covering. 

Detonating fuse is called cordeau detonant in the French language, and cordeau has become the common American designation for it. Cordeau has been made from lead tubes filled with trinitrotoluene, from aluminum or block tin tubes filled with picric acid, and from tubes of woven fabric filled with nitrocellulose or with pentaerythrite tetranitrate (PETN). In this country the Ensign-Bickford Company, at Simsbury, Connecticut, manufac-... 

Cortex, A Fr detonating cord (cordeau detonant) consisting of PETN (Core) in a fabric covering. Its external diam is 4.8 mm detonation velocity 5990 to 6410 m/sec. See also Cord, Detonating Ref M. Dutour, MAF 24, 578 583 (1950)... 

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