Abstract: A new firefighting nozzle has a series of moveable vanes that extend inwardly from a peripheral wall of a base. The inner side of the vanes extends between ? and ? of the diameter of the central channel. The vanes rotate between a linear position, in which the vanes are generally parallel to the direction of the channel, and a vortex position, in which the vanes are significantly angled with respect to the direction of the channel. In the linear position, smooth bore linear flow is produced. In the vortex position, any of a range of fog patterns are produced. An externally mounted controller connects to the vanes and enables a firefighter to change the shape of the nozzle's spray without interrupting the flow. The controller and base have a series of pins that slide in a spiral groove and cause the shaper to move axially with respect to the base when the shaper is rotated about the base. Radial stems that ride in a circumferential slot translate that axial movement into rotation of the vanes.

Abstract: A processing apparatus for fluid with a simple structure, high productivity, ability of precise dispersion, emulsification and grinding, is provided. The apparatus of the present invention comprises at least two processing faces of a first face and a second face, both of which are arranged in a tight-closed passage and positioned opposite to each other to constitute part of said passage, and a contact pressure applying mechanism for putting both faces 1, 2 into closed contact with each other, wherein the rotation of the second processing face 2 in respect of the first processing face 1 may cause dispersion or emulsification of the fluid to be processed between both processing faces 1, 2.

Abstract: A processing apparatus for fluid with a simple structure, high productivity, ability of precise dispersion, emulsification and grinding, is provided. The apparatus of the present invention comprises at least two processing faces of a first face and a second face, both of which are arranged in a tight-closed passage, and positioned opposite to each other to constitute part of said passage, and a contact pressure applying mechanism for putting both faces 1, 2 into closed contact with each other, wherein the rotation of the second processing face 2 in respect of the first processing face 1 may cause dispersion or emulsification of the fluid to be processed between both processing faces 1, 2.

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: An apparatus for recording and/or reproducing information on and/or from an optical card including a shuttle for carrying the optical card, an optical head for projecting a writing and/or reading light beam onto the optical card, a linear motor for moving the shuttle in a track direction at a constant speed during the recording and/or reproduction, a linear encoder for detecting a movement of the shuttle in the track direction, and an optical card driving mechanism for inserting the optical card into the shuttle when the shuttle is indexed at a predetermined card loading position. In order to insert the optical card into the shuttle in a positive and correct manner, the movement of the shuttle from the card loading position is detected by counting pulses generated by the linear encoder, and when it is detected that the shuttle is moved, the linear motor is actuated such that the shuttle is moved back into the card loading position.

Abstract: A valve actuator that establishes a secondary valve which may be positioned to prevent unintentional dispensation of fluid product. The actuator includes a dispensing head, for example, mounted on a hollow plunger, rotatably positionable relative thereto and valvingly cooperative therewith to selectively open (facilitate) or close (block) discharge passage of fluid product. The dispensing head preferably includes a depressible latching pawl that is reciprocatively biased to retainingly engage the plunger when the dispensing head is rotated to the close valving position and hold the dispensing head from further positional rotation until the pawl is depressingly disengaged.