Abstract: The invention relates to a priming device for explosive projectiles and explosive chains, comprising a casing (10), provided with a through hole (11) in which a percussion pin (12) is slidably positioned, and a die member (22), removably mounted to the casing, in which an explosion chamber (21) of frusto-conical shape and with blind bottom is provided, longitudinal slots (25) and other ducts (27, 28) permitting the explosion gases, as generated by a caseless explosive pill (20), to be conveyed to a main explosive charge.

Abstract: In an explosive actuated tool for driving anchoring members, for instance nails and the like, in which the extraction and the ejection of the cartridge case, after the firing phase, are ensured through a mechanism comprising a sleeve, slidably engaged with the barrel and embracing it, a pawl protruding from the sleeve being engaged in a Z shaped groove formed in the internal surface of the breech tube, whereby the sliding motion of the sleeve together with the barrel, during the slipping off motion of the latter with respect to the breech tube of the tool, is stopped when the said pawl stops against the cross portion of the said Z shaped groove, thus having the sleeve axially displaced with respect to the barrel against the counter force of return springs, in this phase half bottom of the firing chamber, as formed by the sleeve being rearwardly displaced with respect to the other half bottom, as formed by the end of the barrel itself.