Abstract: A method of volume screening signalling messages in a communications signalling system, in which control orders from a centralized control are distributed so as to provide equitable volume screening of selected signalling messages being sent over each available communications link of a plurality of links within link sets that interconnect signal transfer points (STPs) of the system. This is achieved by dynamically apportioning the acceptance rate of the selected signalling messages from each available link, in the same proportion as that of the total signalling messages being sent over that available link.

Abstract: A process is provided herein for extracting organic toxic contaminants including pentachlorophenol, polychlorinated dibenzo-p-dioxins, and polychlorinated dibenzofurans, from wood, e.g., utility poles, fence posts, or railway ties. The process comprises extracting the wood with a supercritical fluid in conjunction with an entrainer having wood swelling properties and an agent to break the hydrogen bond between the organic toxic contaminants and the wood, at conventional supercritical fluid extraction temperatures and pressures. The process is further improved by exposing, either in a slurry of the wood phase, or in a liquid phase resulting from such extraction, the contaminants to UV, e.g., sunlight, in the presence of a photosensitizer. The present invention also provides for the photodegradation of a solution of organic toxic chemicals including pentachlorophenol, polychlorinated dibenzo-p-dioxins, and polychlorinated dibenzofurans, by exposing such solution to UV, e.g.

Abstract: A rigid structural member for a building in which the member has four sides each provided with a groove having narrow opening. Two of the grooves on two opposite sides be used to assemble structural members together to provide completed building assemblies by the use of screw-threaded members while, in the completed assembly, the other two grooves are used for holding two building enclosure sheets in spaced positions, one on each side of the completed assembly. For this purpose, elongate holding members are located in the grooves to hold the sheets in place. The holding members have a particular design which secures them in place within the grooves. The grooves are preferably T-shaped and are all of the same size and shape to increase the versatility. In addition, the structural member may be formed into building structures which are hinged together such that they may be in a collapsed condition for storage and transportation or may be relatively pivoted into an erected condition.

Abstract: A pet door kit made of frame sides and door sides all of which may be assembled onto a mesh screen panel before the panel is required to be cut to allow for pivoting of the door. Advantageously each frame side is formed as an integral molding with an associated door side so that the skill of the installer is not required to locate the door within the frame. Economically, the two moldings thus provided are identical and securing members, i.e. pins are integrally provided to pass from one molding, through the mesh, and be force fitted into holes in the other molding. The assembly of the two moldings simultaneously and quickly assembles the door and frame onto the firm unsevered rigid support of the screen panel.

Abstract: A process is provided herein for extracting organic toxic contaminants including pentachlorophenol, polychlorinated dibenzo-p-dioxins, and polychlorinated dibenzofurans, from wood, e.g., utility poles, fence posts, or railway ties. The process comprises extracting the wood with a supercritical fluid in conjunction with an entrainer having wood swelling properties and an agent to break the hydrogen bond between the organic toxic contaminants and the wood, at conventional supercritical fluid extraction temperatures and pressures. The process is further improved by exposing, either in a slurry of the wood phase, or in a liquid phase resulting from such extraction, the contaminants to UV, e.g., sunlight, in the presence of a photosensitizer. The present invention also provides for the photodegradation of a solution of organic toxic chemicals including pentachlorophenol, polychlorinated dibenzo-p-dioxins, and polychlorinated dibenzofurans, by exposing such solution to UV, e.g.

Abstract: In a system for monitoring and collecting data on the viewing habits of television viewers or radio listeners, to enable operators of networks or television stations, programmers and advertisers to determine the numbers of viewers watching particular programs, a portable personal data collection device comprises a detector for providing a station identifier identifying the particular broadcast signal being received by the receiver, a clock for providing a signal representing time, a memory for storing data, a cellular telephone module for communicating with a central location, a control for the cellular telephone module, and a microprocessor. The microprocessor stores in the memory data comprising the station identification, and the time at the beginning and end of receiving signals from that station. The control is arranged to control operation of the cellular telephone module to transmit the stored data to the central location.