Abstract: In the repair of damaged shatterproof glass by the introduction of a polymerizable liquid into a conical crack a vacuum is intermittently released and reapplied to the damaged area by means of a vacuum chamber connected to a vacuum pump through a line having an opening to the atmosphere which opening is adapted to be rapidly opened and closed by an operator's finger. The opening is threaded to receive a removable needle valve for accurate vacuum control. The vacuum chamber has a transparent end wall for viewing the work and a translucent cylindrical side wall allowing external light to illuminate the work without glare. A flexible seal in the end wall of the vacuum chamber allows a probe to be operated while the vacuum is applied. A plunger-sleeve combination, extending through the end wall is used to apply pressure to the liquid without releasing the vacuum.

Abstract: A battery package for storing an electric battery in unactivated condition and for quickly activating the battery, comprising a tube of flexible material having first and second ends, a first seal extending transversely across the tube and closing the first end, a second seal extending transversely across the tube and closing the second end, a medial seal extending transversely across the tube at a location between the first and second end seals and forming a first chamber and a second chamber, an electrolyte contained within the first chamber, and a pair of electrodes mounted in the second end seal and extending into the second chamber, said medial seal sealing the electrolyte from the electrodes for storing the battery in unactivated condition, said medial seal being weaker than said first and second seals, whereby the battery may be activated by squeezing the tube to rupture the medial seal and transfer the electrolyte from the first chamber into the second chamber to make contact with the electrodes.

Abstract: A radial configuration of flexible diffuser tubes eliminates short-circuiting by automatically producing a flow pattern extending well beyond the radial extent of the diffuser. A slitted diaphragm at the outer end of a diffuser tube facilitates the removal of water during start-up. A preferred diffuser comprises an inner perforated conduit surrounded by a fabric tube through which air is released into the liquid. Providing a space between the conduit and the fabric tube and filling the space with gravel pellets provides for greatly improved uniformity in air diffusion.

Abstract: An air terminal building consisting of an arrival hall and a departure hall and one waiting hall possibly commonly used by both departing and arriving passengers. These halls are situated on separate above each other located levels and with the waiting hall on the top of the other levels and extending principally along the whole periphery of the building. The arrival and departure halls are located in the central portion of the building. The central portion also contains a baggage hall located between the arrival and the departure halls and commonly used for arriving and departing baggage and with direct access to the platform for the airplanes. The halls located in the center of the building are surrounded by wall elements which include therein or therebetween, all principal shafts necessary for the provision of and communication between the separated levels of the building, i.e. shafts for the installation of heating, water, sanitation, electricity and ventilation, lifts, escalators and others.

Abstract: A self-extinguishing cigarette particularly when in contact with a flammable surface wherein the wrapper which encloses the body of tobacco is provided with a coating deposited from an aqueous solution of an alkali silicate. The silicate solution contains from about 17 to 27 percent by weight of SiO.sub.2. The coating area of the silicate solution on the wrapper is from about 40 to 84 percent of the entire outside wrapper area. The silicate solution may have added thereto various beneficial additives such as acids, carbohydrates, colloids, humectants, fire retardent compounds, alumina gel compounds, or compatible compounds of the aforesaid additives.

Abstract: A nestable plastic container for handling and storage of bulk material such as food products is provided with three parallel, laterally spaced, downwardly extending hollow ridges forming supporting members. These ridges permit the use of a fork lift to handle the container. The ridges are hollow and open to the interior of the container but they may be easily cleaned by reason of the fact that they extend substantially the full length of the bottom of the container, and also by reason of the fact that they have a trapezoidal cross-section for easy access to their interiors. Specially designed ridges on the cover of the container receive one of the downwardly extending ridges of another container securing it against lateral motion, and thereby permitting safe stacking of multiple containers.

Abstract: A scissors comprising a pair of halves pivotally mounted together at a medial portion, each of the halves consisting of a one-piece strip of metal having a blade portion extending in one direction from the medial portion and a handle portion extending in the other direction from the medial portion. Each scissor half is formed by stamping a blank from a flat sheet of metal, the blank having a generally sinuous portion at one end thereof for use in forming a hollow cylindrical handle portion adapted to receive a finger in the natural position and angle for applying a cutting force to the scissors. In making the scissors the cutting edge is formed on the blade portion while the blank is in the flat condition and prior to the bending and twisting operation to form the handle portion.

Abstract: A package for articles such as cans, bottles, and the like, comprising a corrugated paperboard tray, a film sheet covering said articles, and an adhesive connecting opposite ends of said film sheet to opposed walls of said tray. The sheet may be heat shrunk to hold said articles to the tray and have opposed fully or partially closed ends which overlap the sides of the articles. The sheet may be stretch film that does not require heat shrinking, or it may be plain paper. The package may include an inverted top tray, with or without holes that receive the tops of the articles, to keep the articles in vertical alignment. The package may be double tier.

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: 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: 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 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.