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Watering trough for animals provided at the base of its tank with an emptying opening. The emptying opening is of large diameter (between 90 and 120 mm) and is closed by a monobloc plug in two portions, a first portion which closes the emptying opening and a second screw-threaded portion, which enga

Watering trough for animals provided at the base of its tank with an emptying opening. The emptying opening is of large diameter (between 90 and 120 mm) and is closed by a monobloc plug in two portions, a first portion which closes the emptying opening and a second screw-threaded portion, which engages in a screw-thread disposed in the wall of a recess hollowed out in the wall of the tank; the height of the portion being equal to the depth of the recess.

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Watering trough for animals provided at the base of its tank with an emptying opening. The emptying opening is of large diameter (between 90 and 120 mm) and is closed by a monobloc plug in two portions, a first portion which closes the emptying opening and a second screw-threaded portion, which enga

Watering trough for animals provided at the base of its tank with an emptying opening. The emptying opening is of large diameter (between 90 and 120 mm) and is closed by a monobloc plug in two portions, a first portion which closes the emptying opening and a second screw-threaded portion, which engages in a screw-thread disposed in the wall of a recess hollowed out in the wall of the tank; the height of the portion being equal to the depth of the recess. lel path fiber optic optical energy signal transmission apparatus; communicating optical signals indicative of existence of selected of said firing module operating states between said firing module and said detonation controlling module via said multiple parallel path fiber optic optical energy signal transmission apparatus; including manually electable operating state termination inputs in said detonation controlling module, said manually electable operating state termination inputs enabling premature, and non detonating of said explosive material, terminating of a selected plurality of said intermediate states in said detonation controlling module and said firing module; said quantity-limited depletable source of explosive material initiation electrical energy enabling duration prediction of a detonation energy available possible detonating of said explosive material and commencement of an ensuing remainder period of insufficient detonation energy available and safe manual manipulation of said explosive material; and initiating detonation of said explosive material upon transition through a selected plurality of said detonation controlling module and firing module operating states. 2. The abortable and safe method of explosively disintegrating an assembly of claim 1 wherein said method further includes the step of: enabling detonation of said explosive material from a manually operated pneumatic control input of said detonation controlling module; said enabling detonation step including pressurizing a pneumatic pressure conduit path of said multiple parallel path fiber optic optical energy signal transmission apparatus; said pressurizing of a pneumatic pressure conduit path including pressurizing an electrical crowbar actuation element in said firing module and thereby removing a shunt connection across an electrical input port of said electrically initiateable charge of explosive material. 3. The abortable and safe method of explosively disintegrating an assembly of claim 2 wherein said step of disposing a quantity-limited depletable source of explosive material-detonation initiating electrical energy adjacent said charge of explosive material includes locating an electrical battery of selected electrical capacity in said firing module adjacent said charge of explosive material.4. The abortable and safe method of explosively disintegrating an assembly of claim 3 wherein said step of disposing a quantity-limited depletable source of explosive material-detonation initiating electrical energy in said firing module further includes the step of: charging an energy storage capacitor also located in said firing module from energy stored in said electrical battery; and said step of charging an energy storage capacitor includes charging said capacitor to a high voltage from said battery with a DC to DC converter circuit. 5. The abortable and safe method of explosively disintegrating an assembly of claim 4 wherein: said step of enabling detonation of said explosive material from a manually electable pneumatic control input of said detonation controlling module comprises a first of said plurality of intermediate operating states; enabling of said coded optical energy responsive electrical switching network comprises a second of said plurality of intermediate operating states; said steps of charging an energy storage capacitor located in said firing module from energy stored in said electrical battery to a high voltage comprise a third of said plurality of intermediate operating states; and a step of sensing successful attainment of a selected level of charge in said capacitor comprises a fourth of said plurality of intermediate operating states. 6. The abortable and safe method of explosively disintegrating an assembly of claim 5 wherein said step of initiating detonation of said explosive material upon transition through a selected plurality of said detonation controlling module and firing module