Abstract: A wallboard composed of a low-strength core of gypsum or the like can be successfully faced with a decorative plastic such as melamine if plastic is used on both sides, and a sheet of steel foil is located on both sides of the core between the core and the facing material. The use of steel foil greatly reduces the likelihood that low humidity will cause the gypsum core to split as a result of shrinkage of the facing material, and the provision of plastic on both sides of the core balances the wallboard eliminating any tendency to bow.

Abstract: An automobile storage battery carrier adapted to engage the sides of the battery for lifting, tilting or maneuvering the same into and out of an operating position in the automobile including an elongated member having a handle portion and a leg portion. The handle portion extends at right angles to a leg portion which is provided with a hook on the end thereof for engaging the side of the battery. An arm is pivotally mounted at an end on the leg portion to extend beneath the handle portion. The pivoted arm is provided with a hook formed on its end for engaging the side of the battery opposite the side engaged by the hook on the leg portion of the elongated member. The leg portion of the elongated member is also provided with a stop which is spaced from the hook portion formed thereon for contacting the top of the battery to be carried.

Abstract: A hanging file frame comprises a pair of elongate support rails adapted for hanging suspension file folders therefrom, a pair of transverse interconnecting members, four support legs and four resilient corner fittings for easily joining the rails, interconnecting members and legs into a rigid, parallelepiped file supporting structure wherein the support rails are maintained in mutually spaced, parallel and elevated relationship. The corner fittings, constructed of a strong plastic such as nylon or Delrin, may be molded or extruded. The transverse interconnecting members and the legs are formed of elongate cylindrical rods, end portions of which have radial projections for releasably retaining the members and legs in recesses formed in the corner fittings. The support rails are constructed of metal bars having a rectangular cross section.

Abstract: A miniature school ring charm in which a member displaying information of school-related significance is mounted on the center of the shank of the ring so as to dangle within the finger area of the ring when the ring is supported in an inverted position on a neck chain or the like.

Abstract: In the rotor of a windmill electric generator, blades are secured to a hub by means of individual tab-receiving slots and a common "knock-off" hubcap, this mounting means providing for rapid assembly and disassembly. The mounting structure itself establishes a predetermined pitch at the blade root, thus permitting the advantages of an optimum twisted blade to be obtained without the need for an excessively complex blade configuration. The result is a compact generator unit that can be used easily in remote areas and stowed with camping equipment.

Abstract: A mute of soft, flexible sound-absorbing material, located adjacent the exterior of each sound-hole in a stringed instrument to form a substantially complete closure for the same, imparts a new and distinctive sound to the instrument.

Abstract: An in-line ball valve having a locking device which permits the positioning of the valve member to a set position by operation of a valve handle with the valve member being locked in this position against any creeping movement by reason of flow-induced forces acting on the valve member. The valve also includes a handle design which permits the handle to be positioned on the shaft of the valve member in eight different handle configurations to provide for simplicity of installation and ease of adaptability to push-pull controls.

Abstract: An emergency temporary door cover for covering a broken glass door pane until the broken glass can be replaced, comprising a cover sheet which is foldable for easy storage when not in use, a hook extending from the top of the sheet for suspending the sheet from the top of the door, upper and lower straps extending from the sides of the sheet, and bendable wire supported by the straps and adapted to take a set, so that the installer may hook the sheet to the top of the door and bend the wire around the side edges of the door to hold the cover sheet in place, and may do so while standing in front of the door. Then the installer walks to the rear of the door while the hook and side wires hold the cover in place, and ties the straps across the rear of the door to secure the cover to the door until the broken pane can be replaced.

Abstract: A packet of microscope slides has a length of tape. Each of a plurality of microscope slides has one side of the slide removably adhered to a portion of the tape spaced from portions of the tape to which the other slides are secured to provide a separation between adjacent slides. The packet of slides is formed by tilting a plurality of slides which are in registration with the slides in contact and parallel to each other to place one edge of each slide substantially in a common plane outside of a substantially parallel plane containing the adjacent parallel edge of the slide while retaining adjacent slides in contact. A length of tape is secured to the edges of the slides in said common plane. The slides are then straightened to separate each slide from its adjacent slide. The carrying out of the method is facilitated by the use of a jig which has a bottom, a rear wall, and a pair of opposed side walls. One side wall supports the slides when tilted.

Abstract: Sunglasses which comprise a unitary frame of flexible material having a front portion adapted to be supported on the nose and open portions adapted to be in front of the eyes and a pair of temples integral with the said front portion and each having an outer depending end portion adapted to pass behind the ear. Each said end portion has a tab removable to provide for the removal of a portion of the end portion nearest the ear to effectively lengthen the temple. A sun screening lens is secured to the front portion of the frame and overlies the open portions.

Abstract: A photoplethysmograph probe including a light source, a photo-sensitive cell and a light control film positioned in front of the light source and photo-sensitive cell for collimating the light emitted from the light source and reflected back to the photo-sensitive cell.

Abstract: A sports complex of the pinball type which simulates a variety of games including baseball, ice hockey, football, golf, skiball, and blackjack, comprising a game board having wall means extending around peripheral portions to define a field of play, or playing field, in which a ball is confined, and a plurality of passageways formed on the upper surface of the game board so that when the ball is introduced to the upper end of the game board and the game board is in an inclined position, the ball moves by gravity through the passageways from the upper to the lower end of the playing field. The passageways include a plurality of intersections where the ball may take alternative paths. A cover is mounted above the passageways to extend across a portion of the playing field and has openings located therein above various intersections and aligned with the alternative paths at the intersections.

Abstract: A device comprising a combined wallet, shopping bag, and over-the-shoulder purse for carrying miscellaneous articles includes a vinyl sheet having two half portions connected together along a central crease line, a zipper along the borders of the half portions for connecting the two half portions together when the latter are folded over on the central crease line, a zippered pocket opening in each of the half portions of the vinyl sheet, a foldable cloth bag, for example of nylon or acetate, having a bottom sewn to the vinyl sheet with the sidewalls extending substantially from the edges of the vinyl sheet, the bag being foldable and containable within the vinyl sheet when the half portions thereof are folded over and held together by being zippered along their borders, the vinyl sheet forming the interior bottom portion of the bag when the latter is pulled inside-out, and a pair of foldable handle straps stitched to the outside of the bag sidewalls adjacent the top edges thereof for carrying the device as a

Abstract: A retriever reel for electrical or fluid lines in which a continuous connection is made between stationary and moving ends of the line by means of a random-lay spiral of line housed in the core of a rotatable drum and adapted to close in toward the central axis as the movable end of the line is uncoiled.

Abstract: Card comparing apparatus comprising spaced-apart side walls having facing grooves formed therein for receiving a first and a second card in parallel spaced relationship, each of said cards having a predetermined number of notches along its edges, said notches being varied as to depth, and apparatus for determining whether corresponding notches in the cards are of the same depth, said determining apparatus including pairs of vertically disposed probes in sliding contact with each other, said probes being electrically insulating except for an electric conductor vertically positioned in each probe so that said conductors make electrical contact when the probes are in alignment, a series of vertical slots formed in the spaced-apart side walls, said probes being positioned in said slots, springs urging the probes inwardly to enter the notches in said cards, and signal means actuated by said electrical conductors when all corresponding probes are in alignment to complete an electrical circuit.

Abstract: A capsule inspection machine has a horizontal ring with vertical openings having a minimum diameter equal to a predetermined maximum capsule cap diameter for the reception of individual capsules and a motor to rotate this ring. A capsule feeding device feeds capsules to a sorting wheel having plates perpendicular to the axis of the wheel and spaced apart a distance greater than the diameter of the capsule body and slightly less than the diameter of a capsule cap to pass through uncapped bodies and carry capped bodies with caps having the desired minimum diameter. A second motor rotates the wheel on a horizontal axis to advance capped bodies and discharge them onto the ring and into the ring openings.

Abstract: A specimen test slide has a front panel and a rear panel. The front panel has a plurality of openings. Sheet means underlie each of these openings for the reception of a specimen. The portion of the sheet under each opening carries a test reagent. A hinged cover overlies the openings. The rear panel has tab means opposite the said openings which are pivotable to expose the underside of the sheet to permit the application of a developing solution. The reagent at each location may be the same or different. When the reagents are different, they can be separately printed on the sheet to underlie different openings. A single sheet is disclosed underlying all of the openings with the employment of a barrier to limit the migration between adjacent portions of the sheet. The use of separate sheets under each opening is also disclosed.

Abstract: A bow guide comprises a pair of stop members which are secured to a fingerboard gripping means by telescoping elements which provide for adjustment of the stop means relative to the fingerboard and relative to each other.

Abstract: A method of forming an ampul comprises drawing an aluminosilicate glass tube containing alkali metal ions and having the inner and outer diameter desired for the body of the ampul to reduce the diameter and provide a portion having an inner diameter in the range of from about 0.007 to about 0.03 cm. Advantageously the transition shoulder portion extending from the full diameter to the reduced diameter is heated while rotating and then subjected to axial compression to partially collapse it. The reduced diameter portion of the tube is then severed to form an ampul with a body having the inner and outer diameters of the original tube and a discharge passage which has a discharge opening with a diameter in the range of from about 0.007 to about 0.03 cm. and which has a length at least ten times the diameter of the discharge opening. The drawing provides for a small taper in the discharge passage which preferably will have a diameter equal to from about 2 to about 1 times the diameter of the discharge opening.

Abstract: A pigment suspension for a film coating for tablets and the like comprising a solvent, pigment particles dispersed in the solvent, and a low molecular weight alcohol soluble polymer which acts as a protective colloid coating the pigment particles and providing for a higher concentration of pigment particles in the pigment suspension. The method of making the pigment suspension comprises the steps of pouring a solvent into a container, stirring the pigment particles into the solvent to disperse the pigment particles evenly, stirring a protective colloid into the liquid in the container and dispersing it therethrough to make the liquid less viscous and more adaptable for accepting additional pigment particles, and stirring additional pigment particles into the container liquid to obtain the desired pigment suspension.A coating suspension for tablets and the like comprising the pigment suspension dispersed in a polymer solution.