Abstract: A window unit includes a window frame defining a frame perimeter and a window located within the frame perimeter. The window includes a display surface adapted to receive a display image. A display image source is disposed in the window frame and a speaker element is disposed in the window. The window can transform from a first transparent state to a second increased opacity state for receiving the display image on the display surface.

Abstract: A media window system includes a window unit having a window frame defining a frame perimeter and a glass unit located within the frame perimeter. The window unit includes a display area adapted to receive a display image. A display image source is configured to project an image onto the display surface. The window unit also includes a speaker element disposed on the window. The display are of the window unit is capable of transforming from a first transparent state to a second increased opacity state for receiving the display image.

Abstract: A display screen (32), e.g., a projection screen comprising a panel having a light reflective surface, characterised in that the screen is a distributed mode acoustic radiator loudspeaker having a transducer (9) mounted wholly and exclusively thereon to vibrate the radiator to cause it to resonate to provide an acoustic output.

Abstract: Prior universal pliers with two gripping arms (11, 15) and an adjustable jaw have the disadvantage that during adjustment one must change hands while using the pliers which is unfavourable as regards the economic requirements. This disadvantage is obviated by the present invention in that both gripping arms (11, 15) are non-displaceably articulated on one another and one of the two jaws (19) is displaceably mounted with respect to its associated gripping arm (15) at right angles to the jaw opening.

Abstract: A hand operated crimping tool comprising a crimping head 10 and a pair of operating handles 12 for actuating said crimping head. At least one of said handles includes a force sensing arrangement including detent mechanism for maintaining handle portions 80, 88 in an unloaded position until a predetermined crimping force is applied by the crimping head whereupon the detent mechanism releases to allow slight, relative pivotal motion between the handle portions. The detent arrangement includes a tapered extension post 90 defining a recess 100 and a grip 80 pivotally connected to the post. The grip slidably mounts a spring biased slider 98 which defines a recess, confrontingly aligned with the recess in the tapered post when the grip and extension are in an unloaded position. A detent ball 94 is captured between the confronting recesses. The force exerted by the slider on the detent ball resists pivotal movement between the grip and the extension.

Abstract: A sliding joint pliers having a fulcrum pin projecting from one of its limbs and displaceably arranged in a slot in the second of its limbs, has an adjusting screw rotatably mounted on a carrying plate disposed between the limbs. The second limb has a rack along one edge for coaction with the adjusting screw so that the fulcrum pin can be set in a desired position in the slot. The carrying plate is non-rotatably positioned on the fulcrum pin and, together with the second limb and fulcrum pin, is pivotable in relation to the first limb.

Abstract: A hand operated crimping tool comprising a crimping head 10 and a pair of operating handles 12 for actuating said crimping head. At least one of said handles includes a force sensing arrangement including detent mechanism for maintaining handle portions 80, 88 in an unloaded position until a predetermined crimping force is applied by the crimping head whereupon the detent mechanism releases to allow slight, relative pivotal motion between the handle portions. The detent arrangement includes a tapered extension post 90 defining a recess 100 and a grip 80 pivotally connected to the post. The grip slidably mounts a spring biased slider 98 which defines a recess, confrontingly aligned with the recess in the tapered post when the grip and extension are in an unloaded position. A detent ball 94 is captured between the confronting recesses. The force exerted by the slider on the detent ball resists pivotal movement between the grip and the extension.