Abstract: The automated telephone directory of the present invention combines a telephone, a telephone directory and a telephone log into a single computerized unit. The primary directory database contains the directory information for an entire geographical region (i.e. city, state, province or country) and is accessed by a central processing unit to facilitate the placing of telephone calls and to create incoming and outgoing logs. Several other databases are created automatically or can be created manually to enhance the telephoning process. The system also includes the means to send and receive alphanumeric page messages. A display screen is provided to display, upon command of the CPU, the directory information of incoming and outgoing telephone calls and for displaying the various databases provided.

Abstract: A lift assembly includes a work platform pivotally mounted on the end of a boom for rotation through 270.degree. around a vertical post on the outer end of the boom. Rotation of the platform is effected manually by an operator on the platform, who also controls the location of the platform with respect to a truck or trailer carrying the lift assembly. A foot operated latch mechanism on the platform retains the platform in one position on the outer end of the boom.

Abstract: A simple, yet sturdy bicycle and ski carrier for attachment to a vehicle trailer hitch includes an inverted L-shaped post, the horizontal top arm of which receives brackets for connecting articles to the post, a frame at the bottom end of the post, and a mounting block for attachment to the rear end of a trailer hitch bar. The frame includes a rod extending between parallel sides for insertion into a transverse groove in the front of the mounting block, a sleeve near the rear end of the frame rotatably supporting cam plates, a lever for rotating the cam plates, and a linkage between the lever and the plates, for rotating the latter between a mounting block engaging position for securing the frame on the block and a release position, permitting removal of the frame from the hitch.

Abstract: A simple cover and dispenser combination for bottles containing carbonated colas and pressurized liquids includes a cap for mounting in sealing engagement on the top end of a bottle; a sleeve extending downwardly from the center of the cap for receiving liquid from the interior of the container, and for discharging the liquid through a central opening in the cap; a valve seat in the sleeve around the bottom of the opening; and a valve in the sleeve, the valve including a tubular body fixed in the sleeve, a head on the body normally sealing against the valve seat, a plunger extending upwardly from the head through the central opening, and a resilient cage, defining a section of the body beneath the head, whereby the plunger can be pressed downwardly to deform the cage and open the valve by moving the head away from the seat, permitting the dispensing of fluid through the opening.

Abstract: In general, table saws can be used in a stationary mode only, i.e. the saw blade is fixed in one position. A relatively simple saw assembly which can be used with an ordinary circular saw includes a table with a slot in the top surface thereof for slidably receiving the blade of a saw mounted on a slide beneath the table. The slide is movably mounted on an arcuate track on a carriage for permitting tilting of the blade to make angled cuts. The saw is connected to the slide by a cantilever structure, which permits changing of the amount of blade projecting above the table top, i.e. raising and lowering of the saw to alter the depth of cut. The carriage is mounted on rails extending longitudinally of the table. A handle is connected to the saw and projects upwardly through the slot to a location above the and in front of the blade for manual movement of the carriage, the slide and the saw.

Abstract: The invention disclosed relates to the novel compound 5-amino tetrahydroxy benzoic acid and derivatives thereof, e.g. pharmaceutically acceptable acid addition salts, to a process for the preparation thereof which involves reacting 5-amino salicylic acid with hydroxyl radical, and to a method of using 5-amino tetrahydroxy benzoic acid and derivatives thereof as a biomarker for the presence of hydroxyl radical in biological systems.

Abstract: A relatively efficient snowmaking gun which is of the compressed air and water type includes a water tube for receiving water from a source thereof under pressure and discharging the water in an annular diverging stream through an adjustable valve and a turbine which chops the water into fine droplets; and a central nucleator for receiving compressed air from a source thereof and for producing a central stream of fine ice particles downstream of the discharge end of the gun for mixing with the water to produce snow, temperature permitting. A preferred form of nucleator is an ultrasonic resonator for receiving air and water from sources thereof under pressure to produce an annular central stream of fine water droplets in air while creating ultrasonic waves downstream of the gun outlet. The gun can also include a casing defined by inner and outer shells surrounding the water tube and forming an air chamber which receives compressed air for discharge through a plurality of spaced apart nozzles.

Abstract: In general, the spatial resolution and repeatability of results using infrared detectors for examining printed circuit cards has been so poor that the devices have failed to achieve commercial success. These problems are overcome by a system including an isothermal enclosure for receiving a card to be tested, an infrared camera in the chamber defined by the enclosure, sensors for monitoring the temperature of the card and ambient temperature conditions in the chamber to derive signals indicative of the temperatures, and a computer connected to the camera and to the sensors for examining all signals to produce a three dimensional image of the sample, variations in the image from sample to sample being indicative of an anomaly in a sample.

Abstract: The most common method of determining whether a breast contains cancerous tissue utilizes ionizing radiation, i.e. x-rays, which possible have tissue damaging properties. It has been found that lasers can be used as a light source in a breast tissue transillumination process. However, due to the high scattering coefficient (or diffusing properties) of breast tissue, it is not possible to obtain images having good resolution using classical transillumination techniques, even when a laser is used as the light source. When passing through a diffusing medium, a laser pulse decomposes into three classes of photons, namely ballistic, snake-like and diffuse photons. In most practical situations, the ballistic photon portion of a laser pulse, which travels in a straight line, does not pass through the tissue, i.e. only snake-like and diffuse photons pass through the tissue.

Abstract: Root rots are serious conifer nursery diseases. At present, seedlings are inspected visually to determine whether they show symptoms of disease. Cylindrocarpon destructans and Cylindrocarpon floridanum are two important causal agents of root rots. A substantially more efficient and reliable method of detecting the presence of these fungi directly from infected tissue involves the use of a set of DNA primers which can be used in conjunction with the polymerase chain reaction (PCR) to create species specific probes for detecting species of each fungi.