Abstract: A visual information carrier comprising a single layer sheet of transparent synthetic polymer having dispersed therein a fluorescent dye. The sheet is not subject to white fracture and has profilings on at least one surface, which are produced by deformation of the sheet and which form visually perceivable, colored information.

Abstract: A method for making a game ticket, such as for example a lottery ticket, is disclosed in which the ticket has a base sheet and a cover sheet adhesively joined together in peripheral portions of sections containing information used in the game. The cover sheet, along with other materials placed on the base sheet, conceals the information to be used in the game and prevents undetected tampering with the ticket. The ticket is formed from a base sheet on which information to be concealed is printed, and a release coating is deposited over predetermined areas of the previously printed information. Thereafter an opaque material is applied over the release coating to conceal the information in the printed areas, which opaque material is adapted to be rubbed off when the ticket is used. Thereafter the non-transparent cover sheet is adhered to the base sheet along predetermined areas surrounding the sections of the base sheet defining individual tickets.

Abstract: Method of fabricating attenuation sandwich panels having a central cellular core positioned between and bonded to an imperforate facing sheet on one surface thereof and a perforate facing sheet with an outer layer of porous fibrous material adhered to the other surface. The combined perforate sheet and porous fibrous material have a predetermined open surface area prior to attenuation panel fabrication. The porous fibrous surface is then saturated with a combined liquidous anti-wetting and indicator solution which coats substantially all of the fibers. The solution is allowed to dry and the opposite side is inspected for any indicator present. If indicator is detected on the opposite side of the perforate sheet from the porous fibrous material, it is removed therefrom. The components making up the panel are then assembled and bonded together to form the attenuation panel.

Abstract: Methods for constructing radiation sensitive detectors are described. In one method, distinct layers of optical cement and plastics material are disposed between a semiconductor photodiode and a layer of rare earth phosphor in order to permit the phosphor and the plastics material to be peeled from the optical cement without damaging the photodiode in the event of a problem arising with the deposition of the phosphor layer. The phosphor layer may be loaded with heavy metal such as lead or tin. In the event that an array of semiconductive photodiodes is used, with stopper channels between adjacent diodes, the plastics material is preferably provided with markings overlying the stopper channels so as to reduce optical cross-talk between adjacent detectors.

Abstract: Distributed phosphor scintillator structures providing superior optical coupling to photoelectrically responsive devices together with methods for fabricating said scintillator structures are disclosed. In accordance with one embodiment of the invention relating to scintillator structures, the phosphor is distributed in a layered fashion with certain layers being optically transparent so that the visible wavelength output of the scintillator is better directed to detecting devices. In accordance with another embodiment of the invention relating to scintillator structures, the phosphor is distributed throughout a transparent matrix in a continuous fashion whereby emitted light is more readily transmitted to a photodetector. Methods for fabricating said distributed phosphor scintillator structures are also disclosed.

Abstract: Sheet materials are provided which are photoluminescent by virtue of their coating.These sheet materials comprise a textile or other flexible sheet material substrate to which adheres a coating layer consisting of one or more synthetic resins admixed with a photoluminescent complex, the latter comprising (a) a phosphorescent metal sulphide such as zinc, calcium, cadmium or strontium sulphide and (b) a first substance which absorbs energy of short wavelength and emits it within the absorption spectrum of the said sulphide and with or without (c) a second substance which is fluorescent and which imparts to the said sheet materials a daytime coloration different from their nighttime coloration.The sheet materials may be textile sheet materials useful for the production of garments, in particular safety garments and furnishing fabrics. Self-adhesive materials may also be produced.

Abstract: A method of making a fishing line indicator for nymph fishing uses a thin sheet of flat closed cell polyethylene foam having a plurality of hemispheres formed thereon to which is applied a rubber based adhesive to one flat side thereof and then covering the adhesive with a protective covering. A fluorescent coat is applied to the other side of the sheet having hemispheres thereon and a plurality of fishing line indicators are cut from the sheet, each including two hemispheres.

Abstract: A labeling machine including means for feeding a continuous web having thereon a series of labels of a given length but with certain of the adjacent labels thereon spaced differently than other adjacent labels, and having thereon control elements related to such differences in the label spacing, the machine further including label severing means operable to cut off the terminal labels in the web at their given lengths regardless of the different spacings therebetween, and means controlled by the control elements on the web and operating the severing means to cut from the web the labels in uniform length and without having attached thereto any web portions providing spacings between adjacent labels. .Iadd.