Abstract: A sprinkler nozzle having a nozzle housing with an inlet for liquid and having a longitudinally extending axis. The nozzle housing, opposite the inlet, is delimited by a surface of revolution with nozzle outlet openings arranged around the axis. In the flow direction opposite the nozzle outlet openings, respective impact faces are arranged for reflecting the liquid that flows out through the nozzle outlet openings. The impact faces are constituted by the ends of respective threads that are secured to the nozzle housing, whereby the impact faces are able to reflect water that flows out of the respective nozzle outlet openings.

Abstract: This invention relates to a fluid disperser for a fire extinguishing system, and is specifically related to such kind of fluid dispersers which are adapted for electrical remote control. Such dispersers are provided with a striking mechanism adapted for breaking a safety device which closes the outlet for the fluid. The object of this invention is to show a construction by which it is ensured that the safety device is always fractured even by the use of a relatively weak striking mechanism and it is further the purpose of this invention to ensure that the path for the extinguishant is kept free after the fracturing of the safety device. For this purpose a displaceable striking pin and a loose counter-rest is used in connection with the striking mechanism so that the striking pin and the counter-rest will fall down as soon as the safety device is fractured thereby leaving the desired free passage for the extinguishant.