Abstract: A method of changing the mold assembly upon a plastic molding machine having fixed and movable platens mounting a mold assembly to be replaced which comprises the steps: positioning the replacement mold assembly upon a floor surface spaced from and in the plane of the fixed platen, aligning an overhead crane with a cable and support track within the plane for reciprocal movements of the crane and positioning the crane to overlie the machine and hooking the cable to the mold assembly. Further steps include disconnecting the fasteners between the mounting plates on the mold assembly and platens and with the platens separated, lifting the mold assembly from the platens and transporting the mold assembly in the platen plane and lowering the mold assembly to the floor surface in alignment with a replacement mold assembly.

Abstract: A relatively hard sand cake, containing a metal casting cavity, is formed in a flask comprising cope and drag frame sections by filling and compacting sand in the drag against the drag half of a cavity-forming pattern, then arranging the drag with the cavity opening upwards, applying the cope upon the drag and filling and compacting sand in the cope against the cope half of the cavity-forming pattern. The sand-filled cope is lifted from the drag for removal of the pattern and is re-applied to form the casting cavity in the sand cake. Next, selected wall corner joints of both the cope and the drag frames are separated and opened to laterally expand the walls of the frames away from the sand cake surfaces. This releases the sand cake from the cope and drag so that it may be removed from the flask for later casting molten metal in its casting cavity. At least two of the corners of each of the cope and drag frames include a separate corner piece against which the adjacent ends of the frame walls are abutted.

Abstract: A foldable umbrella-like cover for covering the open top of a golf club bag and golf clubs extending out of the bag, includes a vertically elongated tube that is centrally positioned within the bag, along with the golf clubs, and is releasably clamped to the wall of the bag. A vertically slidable, elongated rod extends into the tube. A ring-like collar is attached to the lower end of the rod, and the upper end of the rod is provided with a manual grip for sliding the rod into and out of the tube. A number of umbrella ribs are connected, at their inner ends, to the collar so that such inner ends may be moved, with the collar, for retracting the ribs into the tube, for closing the umbrella, or alternatively, extending the ribs outwardly of the tube for opening the umbrella. A flexible cloth-like umbrella cover is secured to the ribs and moves into and out of the tube with the ribs.

Abstract: A pallet system formed of a unitary, plastic molded, grid-like base made of intersecting, spaced apart, longitudinal and transverse strips, whose upper edges define a carrying surface. The lower edges of at least some of the longitudinal strips are generally coplanar to form a skid-like base support surface that may be positioned upon a conveyor. The lower edges of the remaining strips are recessed relative to the plane of the support surface. A unitary, plastic molded nest, having integral upper formations shaped to receive corresponding portions of supported articles, is rested upon the base and overlaps some of the openings in the grid-like base. Integral projections on the nest extend into their adjacent overlapped openings and engage the sides of adjacent strips for accurately positioning the nest relative to the base.

Abstract: A shelf unit for visibly storing an assortment of elongated, generally cylindrically shaped articles, such as packaged syringes and syringe needles and the like shaped articles, is formed by a rear wall and opposed side walls, with a rearwardly tilting lower shelf, a rearwardly tilting intermediate shelf and a forwardly tilting upper shelf extending between the walls. A short, front wall extends between the side walls and the front lower edge of the upper shelf so that the front of the shelf unit is open below the shelf unit. Spaced apart vertical dividers are located in the spaces between the shelves to form separate, forwardly opening compartments of predetermined sizes adapted to receive and separate articles of different sizes within the compartments. A series of vertical dividers extend between the front short wall and the rear wall at the upper shelf to form upwardly opening compartments upon the upper shelf adapted to receive articles arranged generally parallel to the front wall.

Abstract: A tool for grasping and manually removing a number of the pin bones from fillets of large fish, such as whitefish, lake trout, haddock, scrod and the like, is disclosed. A pair of pinching members, formed of flat, springy, sheet metal plates arranged in overlapping relationship, are attached to the ends of a forcep-type body portion. Manual forces applied to the body portion move adjacent free edges of the plates together to grasp pin bones between them. The free edge of one of the pinching members is bent inwardly towards the adjacent free edge of the other member to fit around and grip the curved end portions of the pin bones which are adjacent the surface of the fish fillet. A method for deboning the fish is also disclosed, whereby a number of pin bones may be removed simultaneously from a fish fillet.

Abstract: A trailer for hauling and for delivery to a number of different delivery sites, automotive exhaust system parts, such as mufflers, pre-bent tail pipes and the like packed in large shipping containers, and, also, bundles of numerous straight tube lengths, is provided with a normally closed cabinet attached beneath its floor between its rear road wheels and its forward tractor connecting fifth wheel. The cabinet is divided into longitudinally elongated bins, each of about the same length as the straight tubes, for receiving and holding the bundles of straight tubes in longitudinal arrangement relative to the trailer axis. The sides of the bins are openable so that the tube bundles can be inserted and removed in a transverse direction relative to the trailer axis. A fork truck is releasably mounted upon the rear end of the trailer for use in unloading tube bundles in a transverse direction out of the bins at different delivery sites.

Abstract: A toy is formed of an elongated, resilient tube with an elongated leather thong-like strip passing through the tube and extending outwardly of the ends of the tube. A knot is formed at one end of the strip to abut the adjacent tube end and to form a stop. The end portion of the strip that extends from the knot is bent back into the inner tube to provide a double thickness strip within a portion of the length of the inner tube. An outer tube formed of a fur-like material, formed of an inner cloth-like sheet with outwardly extending fibers, covers the inner tube. The elongated opposite end of the strip extends outwardly of the inner and outer tubes a considerable distance. The toy is resiliently bendable and compressible, with the amount of compression limited by the contact between the inner tube and the strip so that the portion of the tube which has the double thickness strip within its comprsses to a lesser double thickness strip within it compresses to a lesser amount than the remainder of the tube.

Abstract: A method for oxidation treatment of waste water material containing organic solid particles includes forming a discrete batch of waste water material, adjusting the pH of the entire batch to close to 7 or acid-alkaline neutral, and then flowing the batch through a reactor along with chlorine gas. The chlorine produces hypochlorous acid, which produces nascent oxygen and hypochlorite ions, for chemically oxidizing the organic solid particles and also forming minute gas bubbles, including nitrogen and carbon dioxide, which adhere to the particles. The treated material is flowed into a separation receptacle, where the gas bubble buoyed particles float to the surface of the water. The clear water is rapidly gravity-drained from beneath the particles, leaving the particles coalesced into a relatively dry, disinfected or stabilized sludge.

Abstract: A radial saw blade is formed of a flat disc having peripheral edge including circular peripheral portions and recessed stepped peripheral portions. The peripheral edge includes spaced apart, radially inwardly extending notches. Each notch has a flat, plate-like insert brazed to an L-shaped seat in the notch facing the direction of rotation. Each insert has cutting edges formed on side edges of the inserts which extend axially from both sides of the disc and on a crown edge extending radially from the peripheral edge of the disc. The side and crown edges each have beveled surfaces extending away from the direction of rotation to define a relief angle. A first set of the notches are positioned about the circular peripheral portion of the peripheral edge. The inserts in the first set of notches make the primary cut in both linear and non-linear passes.

Abstract: In a process for plating nickel upon a surface of a workpiece made of stainless steel, the workpiece is immersed in an electrolytic sulfuric acid bath, with the workpiece anodically connected. Thus, DC current flows from the workpiece, through the bath, to a separate cathode in the bath. Thereafter, the sulfuric acid is rinsed from the workpiece and the workpiece surface is electroplated with nickel which will strongly adhere to the surface. Finally, the nickel-plated part may be conventionally electroplated with chrome.

Abstract: A foldable keyboard stand is formed of a pair of elongated leg tubes that are pivotally connected together to form an X-shape which is arranged in an upright position. Horizontally arranged, parallel tubes are secured to the upper and lower ends of the leg tubes to form upper support and lower foot tubes. The support and foot tubes are arranged off-center relative to the axis of the leg tubes so that they extend forwardly, towards a user location, a considerably greater distance than they extend rearwardly. A resilient, foam plastic sleeve is placed upon and substantially covers each of the upper, support tubes opposite extension portions. A resilient, ring-like collar, which is higher than the support upper surfaces, are positioned upon the opposite ends of the support tubes so that a generally flat keyboard may be rested upon the sleeve covered support tubes and laterally restrained between the end collars.

Abstract: An adjustable ball bar gauge is provided for use in testing the accuracy of the readings obtained in a coordinate measuring machine. Such a machine has a probe that contacts numerous points on an article arranged within its measuring envelope to produce signals that are used, through a computer, to map the shapes or dimensions of surfaces of the article. The ball bar is formed of an elongated shaft, having contact balls mounted upon its opposite ends, that is mounted upon a movable support which allows the bar to be positioned at variable height and vertically and horizontally angled positions. The ball bar support may be placed within the machine measuring envelope and its position, including its angularity, may be repeatedly changed so that the probe may successively contact both balls each time the ball bar position is changed to produce test readings from which the accuracy of the machine may be gauged.

Abstract: A baffle for a liquid container, such as a vehicle gasoline tank or the like, is formed of a resilient, cellular foam plastic material placed within the container. The cells of the plastic are interconnected, and the volume of the solid material forming the foam plastic is only a minor portion of the overall volume of the material including its open cells. The plastic material is tightly compressed into a long strip which is surrounded by a casing formed of a thin sheet. The plastic material is chemically inert relative to the liquid, but the casing sheet is substantially soluble in the liquid. A predetermined length section of the strip may be inserted in a container. When liquid is poured into the container, the casing is substantially dissolved to free the compressed material, which resiliently expands to substantially fill the container and form a cellular baffle therein.

Abstract: In connection with a portable toilet cabana or the like, a solar powered system for regulating the temperature of a supply of clean water such that drinking temperature water and hand washing temperature water are provided.

Abstract: A hollow, tubular beam is formed of an outer and an inner, U-shaped, elongated, roll-formed, sheet metal channel which are telescopically interfitted. The overlapping adjacent leg portions of each channel are provided with an inwardly bent rib and groove mechanical connection, but the curvature of the adjacent rib and groove surfaces are slightly different to provide a number of longitudinally extending, separated spaces therebetween. The free edge of one of the legs of the outer channel is bent normally to cover a corresponding corner-like shoulder bent in the adjacent inner channel leg. The radii of the flange and shoulder bends are slightly different to provide a slight, longitudinally extending space between them. Also, overlapping leg portions are spaced apart by integral embossments formed on the legs. The adjacent channel legs are adhesively bonded together by an adhesive material applied within the spaces.

Abstract: A costume jewelry circlet, such as a bracelet, necklace or belt, is formed of an inner, string-like core having its opposite ends connected together, upon which is positioned a tubular sleeve which extends around and covers substantially the full length of the core. The sleeve is interchangeable with other sleeves which are formed either with different surface textures or colors or cross-sectional shapes. Thus, the wearer of the costume jewelry may substitute one sleeve for another, as desired, within the discretion of the wearer, to produce different visual effects due to the varying textures, colors or shapes of the interchangeable sleeves.

Abstract: A disposable urinating funnel for females comprises a thin, paper-like sheet which is folded in half to form two overlapping sections whose free edges are connected together and are tapered toward the fold line to form a funnel-like shape. The upper edges of the funnel-shape are curved to cover a female vaginal area, and the opposite, bottom edges form a spout-like portion. Score lines are formed midway between the fold line and connected side edges in each of the sections and extend upwardly from the bottom of the spout-forming portion toward the upper end of the funnel-like shape. Manually squeezing the fold line and connected side edges toward each other causes the otherwise flat funnel-like shape to open, by bowing the sections apart along the score lines. In addition, the tapered, connected-together edges are cut along a shallow curve which permits the funnel to be used with the fold line forwardly or rearwardly for selectively directing the flow of liquid through it.

Abstract: An insulated wall construction is formed of a pair of parallel, spaced apart foam plastic sheets and a poured-in-place concrete core filling the space between the sheets. The sheets are each formed of numerous smaller panels which are interconnected edge to edge to form their respective sheets. The sheets are secured together, before the concrete is poured, by means of numerous metal tie members. Each tie member is formed of a pair of parallel, elongated, thin, rigid sheet metal plates which are interconnected by thin, narrow, elongated sheet metal strips whose opposite ends are connected to the respective plates and with the strips being twisted along their lengths. Each of the plates are inserted within aligned edge pockets formed in the abutting edges of adjacent panels which assists in aligning and interconnecting the panels. The plates carry tooth-like clips which embed within the pocket walls to hold the panels from moving, due to hydrostatic forces, during the concrete pouring.