Abstract: A targeting device comprising a transparent casing having a circumferential wall formed with circumferentially aligned openings. A transparent lens is enclosed by and in firm contact with the circumferential wall of the casing, has it circumferential surface disposed directly opposite the opening in the casing, and has one of its plane surfaces formed with a reticle of reflective material. Light emitting diodes are disposed in the casing openings and are connected to a power source. Coating material is provided on the casing for inhibiting light from escaping from the casing, while intensifying reflection of light from the diodes into the casing and then into the lens for illumination of the reticle.

Abstract: Apparatus for positioning or orienting a hand of tubes, or the like, includes clamp arms for clamping the hand while on a conveyor, a fluid activated ram for raising the hand, inverting it 180.degree., lowering it back onto the conveyor, and releasing the clamp arms. The device may also be tilted while in elevated position so that the clamp arms and hand avoid contact with personnel during inversion.

Abstract: An inflatable dunnage bag is formed by a flat, flexible triangular envelope constructed of heavy kraft paper and a sealed inner plastic liner which is inflatable through a valve. The bag is used for shoring load by standing it upright with its base topmost, horizontally oriented, and positioned adjacent the top of the load and its apex positioned contiguous to the bottom perimeter of the load.

Abstract: A method and apparatus are provided for metering of coating on a moving web of material, such as linerboard, paperboard, paper, film, foil or the like, in which the web is fed between a support and a skirt of flexible plastic sheet material extending across the full width of the web and having a free end portion extending contiguous and parallel to and in the direction of movement of the web, and a pressurized tube in contact with the free end portion of the skirt cooperates with the skirt and the web to create a constant pressure web coating region between the web and the free end portion of the skirt within which the coating thickness is skimmed down to provide a layer of coating on the web of substantially uniform thickness.

Abstract: A multiwall cooler bag is formed by gusseted inner and outer tubes, the outer tube being made of kraft paper and having its lower end circumferentially bonded to the inner tube, the inner tube comprising an inner ply of plastic material heat sealed to closure at its lower end and an outer ply of kraft paper, with a strip of plastic reinforcing material extending the length of and secured to the back and front walls of the outer tube. The front wall of the outer tube has its lower end formed with a closure flap secured to the back wall of the outer tube, while the back wall of the outer tube has its upper end formed with a closure flap overlapping the front wall when the bag is completely closed. The upper portion of the inner tube is free of the outer tube to permit independent closing of the inner tube before closing the outer tube.

Abstract: A bulk container of substantially uniform cross-sectional area throughout its height is formed by so folding a single rectangular piece of woven fabric as to provide a bottom wall, four side walls extending from the bottom wall, and four rectangular corner flaps each extending between adjacent side walls. Each corner flap is folded into four triangular portions, the first and second portions being folded against the surfaces of the corresponding side walls, the third portion being folded against the surfaces of the first and second portions, and the fourth portion being folded against the surface of the third portion. Lifting loops are mounted at the corners at the upper edges of the side walls, each loop having two legs disposed intermediate and overlying the fourth portion and the first and second portions of the corresponding corner flap.

Abstract: A package for preserving produce in a wholesome condition for an extended period of time is formed by a sealed container enveloping the produce and filled with a preservative gas which inhibits bacterial growth. The container is formed by a high barrier film which is so perforated as to provide a gas pressure within the container sufficient to inhibit air inflow into the container and to assure gas outflow from the container to prevent its distortion.

Abstract: Apparatus for sensing the distance from a reference point to a remote object comprises a light source and optics to project light from the light source onto the remote object. One component of the optics is a movable mirror which is used to position the projected light on a remote object. A sensor is provided to detect the position of the projected light on the remote object. In response to position information from the sensor, control circuitry produces a drive signal which controls a galvanometer. The galvanometer shaft is attached to rotate the mirror. When the mirror has been positioned such that the projected light impinges on the remote object at a predetermined location, the value of the drive signal can be used to compute the distance to the remote object by triangulation.

Abstract: A multiwall bag having an interior plastic pouch formed from a sealed plastic tube having a longitudinal seam comprising overlapping tube margins sealed together by two spaced seals to provide a channel, one of the tube margins being formed with openings providing communication between the interior of the tube and the channel to permit escape of air from the tube. A strip of material is disposed along the length of the channel to prevent the overlapping tube margins from adhering to each other between the spaced seals.

Abstract: An apparatus and method for dynamically monitoring the gap between the refining surfaces of first and second relatively rotating metallic refining members. At least one of the refining members is mounted to a first rotatable shaft which is supported in a housing by lubricated bearing means. When the refining members are in rotating relation, an electrical impedance exists across the gap. The value of the impedance is dependent on the size of the gap. An alternating electrical current is passed through the gap and the voltage across the gap is monitored to provide an indication of the size of the gap. The voltage across the gap can also be used as one input to a circuit which controls the size of the gap by driving an electro/hydraulic system.

Abstract: A bulk material container having a pair of slings connected to the sidewall thereof for supporting and transporting the container is provided with an opening in its bottom wall for dispensing bulk material therethrough. The opening is opened and closed by a slide valve gate having handles at opposed ends and an off-center opening adapted to be placed into full or partial registration with the opening in the bottom wall of the container to control the flow of bulk material from the container.

Abstract: A method and apparatus are provided for metering and smoothing coating on a moving web of material, such as linerboard, paperboard, paper, film, foil or the like, in which the web is fed between a skimming rod below the coated side of the web and a skirt of flexible plastic sheet material extending across the full width of the upper or uncoated side of the web and having a free end portion extending in contact with and in the direction of movement of the web. A pressurized tube in contact with the free end portion of the skirt, causes the skirt to bear directly on the upper surface of the web and downwardly on the rod to create a constant pressure web coating region between the web and the rod within which the coating thickness is skimmed down by the rod to provide a layer of coating on the web of substantially uniform thickness.

Abstract: A valved lined container is disclosed. The container has an opening at one corner through which the liner valve protrudes. The liner valve is supported by an end flap of the container. The other corners of the container are reinforced. The liner may be filled, emptied and sealed by the protruding liner valve. The liner has an unstressed bottom seal. The liner is attached to the bag near all four width extending edges of the container with releasable glue.

Abstract: A multi-ply, gusseted, stepped end, pinch bottom bag is disclosed which includes a sleeved valve in a corner of one end for receiving a filling spout from a product dispensing machine. The valve is completely sift-proof and is constructed without making changes in the cut shape and relationship of the various plies of the bag to accommodate the valve sleeve. The bag is made from a plurality of plies of flexible material, such as kraft paper, which are cut and scored to permit a multiwall, gusseted, stepped end, pinch bottom bag to be formed and to further permit a valve area to be formed at one corner when the front wall, rear wall and gusset panels in that region are infolded. The valve sleeve which is inserted into the valve area includes a tuck-in flap which is sized and shaped to correspond to the pocket formed when the wall and gusset panels are folded back against the inside walls of the bag.

Abstract: A conveyor accumulates collapsed, flexible flat tubes into roughly aligned stacks which are transferred to a collator comprising an inclined tray-like receptacle mounted for multidirectional movement. The receptacle is simultaneously rotated and pivoted from a loading station to a discharge station while being rapidly reciprocated to vibrate the roughly stacked tubes. The combined effects of gravity and vibration urge the tubes to shift relative to each other into engagement with adjacent sidewalls of the tray to align the stack. A pallet mounted for multidirectional movement at the discharge station is automatically indexed to allow the aligned stacks to be deposited at preselected locations on the pallet.

Abstract: A moving substrate material such as a web of paper, paperboard, film, or other substance is covered with a coating by propelling a coating material onto a deflector bar positioned near the substrate material. The deflector bar is configured to deflect the coating material toward the moving web in a continuous, free standing, smooth jet curtain of coating material. The coating on the web is free of skips, scratches, and other imperfections. In one embodiment, propulsion of the coating material toward the bar is accomplished by rotating a drum, or applicator roll, through the coating material. The surface of the drum or roll carries the material to the deflector bar at a speed and in a sufficient quantity to cause the material to be deflected by the bar in a continuous free standing curtain toward the paper web.

Abstract: A safety system (10) for shutting down a nuclear reactor under overload conditions is provided using a series of parallel-connected computing modules (14a, 14b, 14c, 14d, 14e) each of which receives data on a particular reactor parameter (P, T, .phi..sub.T, .phi..sub.B, W) and each of which produces a function [f(P), f(T), f(.phi..sub.T), f(.phi..sub.B), f(W)] indicating the percentage of maximum reactor load that the parameter (P, T, .phi..sub.T, .phi..sub.B, W) contributes. The various functions [f(P), f(T), f(.phi..sub.T), f(.phi..sub.B), f(W)] are added together to provide a control signal (S) used to shut down the reactor under overload conditions.

Abstract: A differential thermocouple hydrogen gas detector (10) is provided by coating one thermocouple junction (34) of a differential thermocouple pair (34, 36) with a Palladium-Silver alloy catalyst (46) and the other thermocouple junction (36) with a non-catalyst (52). Heated hydrogen gas reacts with the catalyst (46) to liberate heat to the catalyst coated thermocouple junction (34) in proportion to the concentration of hydrogen gas and proportionally raise the temperature of the catalyst coated junction (34) above that of the non-catalyst coated junction (36). The output signal (44) from the differential thermocouple device (34, 36) thus provides an output signal indicative of the concentration of hydrogen gas.

Abstract: A method of manufacturing a cooling jacket (10) is provided whereby a relatively thin-walled outer jacket formed as a cylinder (14') is press-fit over an inner casing (12) and the outer jacket (14') is then electron-beam welded to the inner casing (12) to set up a spiral weld (28) along the length of the cylinder (14'). The inner casing (12) has an inlet (18) and an outlet (20) hole located at opposite ends thereof which is aligned with the cylinder (14') during the pressing of the cylinder (14') onto the inner casing (12). The spiral-welded cylinder (14') is then pressurized through the inlet (18) with the outlet (20) being blocked to thereby expand the cylinder (14') between the spiral welds (28) into a series of semicircular passageways (16) for allowing cooling fluid flow.

Abstract: A drag ball valve (10) that can variable regulate the pressure drop to which the fluid passing therethrough is subjected while maintaining the fluid velocity nearly constant is disclosed. To accomplish this, a series of fixed disks (34) having apertures (36) therein and rotatable disks (42) having apertures (44) with flange-like projections (46) therein are aligned so that either an unobstructed straight fluid passage through the apertures in both types of disks is created or the fluid is diverted by the flange-like projections (46) causing pressure reductions due to a variable number of flow direction turns. By varying the number of fixed disks (34) and rotatable disks (42) used, and by varying the number of rotatable disks (42) that are so aligned, any number of flow direction turns and associated pressure drops from zero pressure drops to the total number of rotatable disks (42) used can be achieved.