(57) A delay detonator comprising a small outer powder case (2), two metal parts of brass
(4, 6) in which the percussion cap (5) is housed, which cap (5) acts as a primer,
a small tube (7) in which the priming charge (8), the delaying mixture (9) and the
outlet charge (10) are provided, and a fish paper gasket (11) between said small tube
(7) and the main charge of secondary explosive (12), and a process for the production
of said delay detonator, in which process the delaying mixture is charged with at
least seven increments, each one of them being pressed with an automatic block compensated
head press to that if the mixture metering is not of the predetermined amount, the
charging operation stops automatically.
|
|
