Abstract: A single and unitary, generally rectangular blank is preferably made of corrugated cardboard, with a waterproof surface. On the corners of the blank, a pair of triangular panels are brought together, in a V-fold, and into a face-to-face contact. Then, the corner panels are folded over the ends of a box as the four sides of the rectangular blank are raised to form the side and end panels of a five-sided box. A cover panel is integrally joined to one edge of a side panel, to swing down and close the box. While the leakproof box has many uses, it is presently thought that it will primarily be used to ship frozen poultry.

Abstract: A perforated film matrix is attached to a cylindrical drum by means of clips having an upwardly raised flange along one edge. The film matrix is initially held on the drum by two pairs of protruding members extending through said perforations. The clips are then vertically inserted along opposite borders of the film matrix between each pair of protruding members.

Abstract: A pressurized plenum or air chamber is separated by internal walls to form slots, holes or the like. The separated chambers may be either in gas pressure communication or entirely separated from each other. Game piece manipulation devices operate a controller via these slots or holes. The upper surface of the plenum is perforated to enable the pressurized air to escape and form a boundary layer of air at the playing surface. The air pressure may be controlled, at the perforations, in order to form different zones of surface friction.

Abstract: The instrument comprises means for measuring the ambient air temperature and providing a first signal proportional to the temperature, means for providing a second signal proportional to the non-evaporative rate of body heat loss in K Cal./m.sup.2 hr, and means for providing a third signal representative of the thermal insulation resistance of still air outside of clothing. Means is also included for measuring the fraction of full sunlight intensity reaching a person wearing the clothing, and for providing a fourth signal representative thereof, and further means for providing a fifth signal representative of the absorptance of the clothing. Further means adds the first signal to the product of the second and third signals and to the product of 230 and the third, fourth and fifth signals and substracts the product of 0.18 and the second signal, and provides an output signal, which is representative of the still shade temperature.

Abstract: A spool of thread, such as dental floss, is housed in a two-part shell or holder, preferably made of plastic. The floor on the bottom one of the shell parts includes a platform to provide a bearing surface for enabling rotation of the spool with a minimum of friction. The top of the upper shell part includes at least one finger which depends far enough to drag, with predetermined friction, against the top of the spool. This friction is sufficient to prevent a random unwinding of the spool and yet small enough to preclude any substantial impedance to the withdrawal of a desired amount of thread from the spool.

Abstract: A hand truck provides sturdy use for home, travel and shopping. The hand truck has a two-part tubular frame which extends for use and slides together to a compact and retracted configuration for travel. When in its opened or extended position, the frame is secured by fittings that latch together. If a force is thereafter applied to move the frame and any load placed upon it, it will not slide together to a closed position, until the closing force exceeds the holding power of the latch. When the holding power of the latch is overcome, the tubular frame easily slides into its closed or retracted and compact position. The holding power of the latch is greater than the forces acting upon the latch which randomly occur during the normal operation of pulling the cart.

Abstract: A spool of thread, such as dental floss, is housed in a two-part shell or holder, preferably made of plastic, one of the two parts having a central post coaxially located therein. The thread or floss is wound on a bobbin having a clutch molded in its hub area. The clutch comprises a split cylinder having a generally C-shaped cross section with three equally spaced ribs running along the internal length thereof. The C-shape of the split cylinder embraces the central post and the surfaces of the three ribs provided areas for friction gripping the central post. The friction keeps the bobbin from unwinding; however, the friction is not so great that it keeps the thread or floss from pulling smoothly and evenly from the bobbin.

Abstract: A simple three-step process conditions and polishes fingernails and toenails. First, the nail is smoothed by a simple and delicate abrasion of the nail surface, to remove all length-wise, surface ridges. Second, a conditioning cream, fortified with protein, is spread over the smooth surface of the nail. The conditioning cream penetrates, protects, and beautifies the nail. Third, the creamed nail is buffed.

Abstract: An article capable of being hot stamped with desired lettering or designs comprising a plastic laminate and an overlying carrier film with colored matter attached to an appendage portion of the plastic laminate. The back of the laminate has a pressure-sensitive adhesive protected by a removable covering or backing. The method of imprinting and using the article comprises hot stamping the foil and underlying plastic laminate to form the desired lettering or design, removing the foil and appendage portion from the plastic laminate, removing the protective backing to expose the adhesive and to affix the imprinted laminate to a plaque or other item. The process of imprinting on the article includes hot stamping the laminate to deboss it and transfer the coloring matter to the debossed portions, and removing the carrier film.

Abstract: A message holder comprises a plastic housing having a sloping roof with a spring loaded ball detent thereunder. Paper is linearly inserted along a line representing and counter to the force of the spring bias. The ball detent moves back against the spring bias to a point where it may raise under the sloping roof and the paper passes under it. The ball is pulled forward and wedged under the sloping roof when the paper is pulled in the direction of the spring bias. The wedged ball strongly tends to prevent the paper's removal. However, the paper may be removed by sliding it sideways, or perpendicular to the line representing the force of the spring bias.

Abstract: The invention resides in the addition of large quantities of sodium fluoride to a chemical plating solution for depositing nickel on a catalytic substrate. The purpose of the addition is to increase the rate of deposition of an electroless nickel plating bath. In this way, heavy deposits may be made on substrates without substantial surface roughness, the control and integrity of the properties of the bath can be better maintained, concentrations of additives needed to maintain control of bath properties can be reduced, and the life of the plating bath can be extended.

Abstract: An arrangement for use in indicating the speed of rotation of a body including a switch operated by elements which rotate according to the rotation of the body, a frequency generator which has an output signal at a frequency related to the desired speed of rotation of the body and an indicator which is actuated in accordance with the signals from both the switch and the frequency generator.

Abstract: An adjustable anamorphic transformer comprises a source of video signals, which are primarily -- but not exclusively -- images of a human brain. The video signals have their horizontal and vertical synchronizing signals separated out and then independently processed. The video signals themselves are amplified with an automatic gain control. An electronic means jointly responsive to the separately processed horizontal and vertical signals controls the gain of the video amplifier. Other electronic means separately responsive to the horizontal and vertical signals independently control, in X and Y axes, the expansion of images produced responsive to the video signals.

Abstract: A paper knife is mounted at its opposite ends on a pair of arcuate arms pivotally attached to the knife table. The knife is operated by a fluid cylinder which extends from the table to the knife. This way all of the operating apparatus is positioned beneath and not above the table, thereby providing a low profile so that the operator may reach over the knife. Various mechanical details enable quick paper sets and closer cuts.

Abstract: A headlight lens shield comprises a convex base plate with a rectangular opening therein. The convex base plate includes three dimples which accurately locate the shield on the face lens of a sealed beam headlight.

Abstract: A chassis for electronic equipment comprises a frame structure including two similar spaced uprights connected respectively at their tops and at their bottoms by two similar rigid frames and at least one cell for the reception of circuit boards, said cell comprising a floor and a ceiling between which the boards can be held, said floor and ceilings being slidably supported on brackets releasably fixed in upright grooves in said upright.

Abstract: A compact respirator system for use either connected to stationary outlets for breathing gas or connected as a portable unit to a tube of breathing gas. A breathing bladder and a valve block form a unit that may be disposed either with the breathing bladder in a pressure chamber for conventional respiratory operation or with the breathing bladder removed from the pressure chamber for manual actuation. A pulse transmitter actuates a pressure pulse generator for providing the pressure chamber with intermittent pulses for compressing and expanding, respectively, the breathing bladder for said conventional respiratory operation. An automatic valve keeps open a pilot pressure channel to an expiratory valve forming a portion of a pilot valve, which latter also includes a patient-triggered valve for initiating rapid breathing assistance if the patient shows signs of beginning to breathe spontaneously.

Abstract: A divider net has an upper portion with a replaceable lower panel attached thereto. The panel is attached to the upper portion by means of fasteners which do not have to be aligned, and yet which reliably and securely bind the upper portion to the panel at many closely spaced points. In one embodiment, the fasteners are hook and loop strips having connect straps periodically spaced around them. In another embodiment, lacing may replace the connect straps. The lacing may run longitudinally along the strip; or it may be in the form of individual tie lines. In yet another embodiment, a zipper is used to attach the lower panel to the upper portion.

Abstract: A device for inserting dental floss in difficult-to-reach areas under dental bridges or splints, comprising a length of flexible material formed into a loop, the ends of which are bonded together over a substantial portion to provide a stiffened elongated guide portion. The floss is threaded through the loop and the device, with the guide portion leading, is passed under two connected teeth of a bridge through interproximal areas whereby the floss is inserted through such areas.

Abstract: A loading dock assembly adapted to be included in a building comprising an automatic control means for opening and closing the loading dock door, automatically raising and lowering the dock ramp to a proper position, as well as automatically turning on and off the dock light.