Actuating cartridges

When immersed in water, the explosives in water-activated contrivances are initiated by electric current as water (acting as an electrolyte) immerses the electrodes of specially designed batteries by chemical reaction with water and by pressure sensors triggered at certain depths. These contrivances include ammunition, signal flares and other pyrotechnics, sounding devices (which are dropped by ships to determine depth), and actuating cartridges for gas cylinders that automatically inflate life rafts and jackets. [Pg.71]

Reaction can be initiated by several means, aH of which depend on deHvery of heat at a relatively high temperature to a starting cone. Cartridge-actuated and electric match units are usuaHy used. The former is in the majority. A water-activated unit has been described (12). The heat generated by the starting device initiates reaction in a cone, which is a smaH amount of candle that is higher in fuel content, eg, 30 wt % iron. Compared to... [Pg.485]

Zirconate compounds exhibit several interesting properties. Lead zirconate—titanate [12626-81 -2] compositions display piezoelectric properties which are utilized in the production of EM-coupled mode filters, resonators in microprocessor clocks, photoflash actuators, phonograph cartridges, gas... [Pg.432]

A special category of ignition system is the cartridge actuated device (CAD) also known as the Propellant Actuated Device (PAD) which serves to generate the mechanical force to close switches (in the manner of a squib) or to perform otherwise mechanical work (Vol 2, C70-R Ref 138, p 167)... [Pg.992]

Prior to WWII. Cartridge-Actuated Devices (CAD s) or Propellant Actuated Devices. The... [Pg.155]

Exactor. A "cartridge-actuated device" (See Vol 2 of Encycl, p C71) intended to release die safety mechanism of another cartridge-actuated device. The exactor operates by gas pressure supplied from the initiator"... [Pg.220]

Expansion Ratio. In jet propulsion it is the ratio of die nozzle exit section area ro the nozzle throat area. In cartridge actuated device, it is the ratio of final to initial volume in a stroking type of CAD Ref Glossary of Ord (1959), 109-R... [Pg.223]

They are known as CADs (cartridge-actuated devices) (Ref 2)... [Pg.271]

Encycl PATR 2700, Vol 2 (1962), pp C70-R to C72-R [Cartridges and Cartridge-Actuated Devices (CADs), called Propellant Actuated Devices] 3) Encycl, PATR 270Q Vol 2 (1962), p C91-R [Catapult (Modern)]... [Pg.271]

Explosive Starter. A device, used to start diesel engines consists of a cartridge-actuated device 1 (CAD), inserted in the head oi one of the cylinders. On detonation of cartridge a shock (kick)is produced which pushes the piston down and starts the whole engine Note CAD s ate described m Vol 2 of Encycl pp C70-R to C72-R... [Pg.320]

Some of the items already described in this Encyclopedia, may also be called "special devices , as for example, "Cartridge-Actuated Devices (See Vol 2, pp C70-L to C72-R... [Pg.7]

Butterfly Valve. See under Cartridge Actuated Devices... [Pg.376]

Cartridges and Cartridge-Actuated Devices(CAD s), called Propellant Actuated Devices(PAD s) by... [Pg.465]

In Ref 13 are described various power cartridges and igniters used by the US Navy. The so-called delay cartridges are generally used to provide a predetermined time delay to actuate a release mechanism. The two types described in Ref 13 are used for releasing lap belts in airplanes... [Pg.467]

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