Abstract: A pallet constructed from paperboard has longitudinally extending runners formed from paperboard cores having various configurations and connected to a deck. In the preferred embodiment the cores form runners which are cylindrical members having notches transversely extending through the periphery, and the deck is formed from a number of elongated arcuate segments of cylindrical cores positioned within aligned notches of the various runners. Other notches are formed diametrically remote from the deck members for receiving brace members also formed from elongated arcuate segments of cylindrical core members. The notches in the preferred embodiment have a dovetail configuration with the narrow portion facing outwardly from the cores. The deck members are positioned in the notches with the convex portion of the members facing upwardly, while the brace members are positioned in the respective lower notches with the concave surfaces facing downwardly.

Abstract: Reclosable packages for food products and methods for making the packages, each package having a semi-rigid base including a recess for containing the food and a thin film flexible lid. The base has an upper peripheral flange extending from an edge of the recess to an outer edge, an elongated groove being formed in all but a minor portion of the flange. A rib is positioned within the groove. The lid and rib are formed from a first thermoplastic material while the base is formed from a second thermoplastic material having a fusion seal inhibitor relative to the first material. During the process of forming the package the rib is fusion bonded to the lid and peelably sealed within the groove, the lid also being peelably sealable to the flange. Spaced apart recesses extending across the groove are formed in the flange to provide rigidity to the flange.

Abstract: A non-resuable syringe has inner and outer barrels including a needle connected by hub to the inner barrel and a plunger attached to the outer barrel and received within the inner barrel. A pair of circumferentially adjacent longitudinally extending tracks in the form of teeth are on the outer surface of the inner barrel and a traveler is fixed to the inner surface of the outer barrel, the teeth being such that the traveler may ride on each track in only one direction. The outer barrel may be rotated to move the traveler from an outgoing track for charging the syringe to an incoming track for discharging the syringe, but the teeth on the outgoing track have a greater height than the teeth on the incoming track so that the traveler cannot move back onto the outgoing track. The hub has a flange including an inclined needle facing surface. A protective cap having a skirt at the open end may be disposed on the hub with the skirt removeably positioned on the flange.

Abstract: A spot compression and magnification device for use with mammographic units to aid in the spot compression of a female patient's breast to obtain a high degree of focal breast compression and a high quality x-ray image of a suspicious mass within the breast. The device is positionable on the image platform of a conventional mammographic unit and has a base including an open bottom and an upstanding pedestal opening into the base, the pedestal having a flat top surface so that an air gap is provided between the top surface of the pedestal and the surface of the imaging platform. The device is constructed from a synthetic plastic material of sufficient rigidity and having low x-ray absorptivity. The base has excluded material in the form of an opening to increase the flexibility of the device to permit increased depression of the top of the pedestal facing the patient. The pedestal has a substantially truncated conical form while the base has a substantially rectangular cross sectional configuration.

Abstract: A poultry house having ventilation windows with curtains movable vertically relative to the windows to open the windows incrementally has a control cable associated with each curtain for pulling the curtain upwardly by curtain cords connecting the control cable to the curtain to close the ventilation through the window or to release the pull on the curtain to permit the curtain to drop incrementally and open the window. Each control cable is trained about a control pulley mounted on a power driven rod and is connected at one end to a manually rotatable winch. Other pulleys guide the cable to the control pulley and from the control pulley to the winch. In normal power operation the power driven rod pulls or releases the cable by retraction or extension, but in the event of a power failure the manually operable winch may be utilized to raise and lower the curtains.

Abstract: A coupling having one end attached to a drop pipe of a fire sprinkler system and another end for attachment to a tool subsequent to initially testing the sprinkler system and to a sprinkler head thereafter. The coupling includes an internal frangible closure member to prevent flow of fluid from the drop pipe during the test phase so that the sprinkler may be pre-tested prior to attachment of the sprinkler head. The tool includes an external housing which after completion of the test phase is connected to the coupling, a ram being mounted within the housing and adjustable to position and impact member at the end of the ram at or in abutment with the frangible closure member. The ram is connected to a propelling assembly which permits the ram to be pulled manually against the biasing force of a spring away from the closure member, and upon release of the ram, the ram is propelled toward the closure member so that the impact member shatters the closure member to open communication through the coupling.

Abstract: A fluid coupling having a pair of body members having fluid passageways through which fluid may flow through an inlet in one of the body members and out an outlet in the other member. One of the body members is connected in flow communication with a flexible hose, and the other body member is connected in flow communication to a rigid conduit by a connecting member about which the body members may rotate relative to a swivel axis. Valving shuts flow communication through the body members when they uncouple. If the excessive tensile force is axially applied through the hose to the coupling, the body members uncouple by pulling apart in the direction along the line of action of the force, but if the excessive tensile force is non-axially applied, the body members, if they cannot be aligned with the axial force vector to uncouple, will be uncoupled by a twisting action resulting from the bending load caused by the force.

Abstract: A tensile force actuated fuel line swivel-joint quick-disconnecting coupling device has a pair of body members including interlocking elements which cooperatively couple and provide fuel passageways through the body members, and uncouple when a tensile force above a predetermined limit is interposed on the fuel line. The interlocking elements are in the form of a mortise and tenon connection and pivot one relative to the other about a swivel axis. A connecting member is pivotably connected to one of the body members and to a rigid conduit or fuel nozzle for rotation about a pivot axis. The other body member has a diverted fluid passageway including a longitudinal axis that extends to a port connected to a flexible fuel line. The pivot axis, the longitudinal axis and the swivel axis are disposed so that the longitudinal axis may align itself with the direction of any tensile force applied through the flexible fuel line.

Abstract: A textile machine having a multiplicity of yarn manipulating instrumentalities includes a yarn break detector. The specific machine disclosed is a tufting machine having a multiplicity of reciprocable needles threaded with respective yarns supplied from a source and the yarn break detector includes at least one metal washer carried by a respective yarn between the needles and the source. The washers are mounted above a trough having first and second spaced apart strips of electrical conducting members formed in a Vee configuration having a small gap between the plates at the lower apex of the Vee. The plates are connected in an electrical circuit which is maintained open by the gap until a yarn is broken and the washer carried thereon drops into the trough to short the plates together and close the circuit. The circuit includes a relay which energizes an indicator light and deenergizes the tufting machine motor when a yarn is broken.

Abstract: A mounting bracket for supporting a shelf for holding drinking cups or the like includes a housing having a clamping slot at the top for clamping about an upper longitudinally extending rail of a bed side rail, and a clamping slot facing toward the bed in a block carried by an arm for clamping about a lower longitudinally extending rail of the bed rail. The arm is telescopically positioned within a slideway formed in the housing so as to be adjustable relative to the housing. The arm includes a multiplicity of teeth to provide positive stops for the arm as it is moved relative to the housing. A stop member at the top of the arm prevents the arm from being pulled out of the housing. The shelf is slidably removeably attached within a groove at the wall of the housing facing remotely from the bed so that shelves for holding various items can be carried selectively by the bracket.

Abstract: A covering sheet material particularly for covering balsa wood frameworks of model aircraft, comprises a fibrous scrim which is impregnated with a resin solution containing a cross-linking agent and a catalyst. The resin solution may also include a dye or pigment, coloring agent, a filler or a metal powder, to give a desired surface appearance. The scrim may be a heat bonded non-woven fabric of polyester fibres, and the covering sheet may be bonded to the framework using a heat seal adhesive. After bonding, the covering material may be tautened by further heating. The covering material is lighter, stronger and more puncture resistant than conventional doped tissue paper covering materials.

Abstract: A method and apparatus for packaging food products provides evacuation of air and application of purging gas in two stages. The first stage evacuates air and applies an initial gas flush to a first group of packages while the second stage provides an evacuation of a portion of the gas initially applied and applies a second gas flush to the group and then seals the packages. The packages include food containing bases which enter the first stage station of the apparatus where lidding material is laid over a small leading portion of the group, and as this group is transported to the second stage station the lidding material is fed onto the remainder of the bases of the group. Each station includes an evacuation chamber having a base receiving cavity, the second station including base receiving dies acting in conjunction with a heater for bonding the lidding material to the bases. The cavity is closed after two groups of bases have been indexed into the cavity.

Abstract: A camera for providing a composite image on a photographic film of a data card and a person associated with the data so that an identification card having both images thereon may be formed with no clear boundary existing between the two images. The data is focused by a first lens and directed onto a focusing screen, while the person to be photographed is focused by a second lens and directed onto the focusing screen, the image formed on the focusing screen being a composite real image of the two images and is focused by a third lens onto the film when the shutter between the film and the third lens is opened. The first and second lenses direct the respective image through respective vignetters onto the focusing screen by means of a beam splitter which transmits a portion of each image and reflects a portion of each image. The first and second lens are offset from each other, the first lens focusing the image of the data card inserted into the camera onto the mirror which reflects it to the beam splitter.

Abstract: Apparatus for wheel lift towing vehicles for supporting the tires of a vehicle to be lifted and towed thereby includes a tire support cradle having front and rear support members for respectively engaging the front and rear surfaces of a tire of the vehicle to be towed. The front and rear members include an auxiliary foot in the form of a plate which is selectively connected to the members when operative or removed when inoperative for storage. Each plate when connected to the support members is disposed at an angular inclination for providing a support surface for engaging and aiding in supporting a respective surface of the tire. The rear plate may be connected after the rear support member has been positioned behind the tire beneath a low ground clearance disabled vehicle so that no interference with the vehicle occurs.

Abstract: A clip formed from a resilient wire rod having a circular cross sectional configuration utilized for installing a canvas stretcher frame within a decorative picture frame. The clip has an elongated central body portion connecting first and second legs at opposite ends thereof. A sharpened projection extends from the free end of a first leg while a resiliently deformable retaining portion is formed adjacent the free end of the second leg. The diameter of the wire rod is smaller than the clearance space formed between the rabbet groove of the picture frame and the adjacent rail or stile of the stretcher frame. The first leg is inserted into the clearance space with the central portion overlaying the clearance space portion of the rearwardly facing edge of the rabbet groove, and thereafter the clip is rotated so the central section swings over the adjacent rail or stile of the stretcher frame.

Abstract: A fuel dispensing nozzle for gasoline fuel pumping stations and the like has an inlet through which the fuel is supplied within a range of inlet pressures, an outlet from which fuel is discharged and a flow passage having valving for selectively opening communication between the inlet and the outlet in response to the pressure differential across the valving. The valving includes a housing within which a movable valve member is mounted, the valve member being actuated to open or partially close communication from an inlet of the housing to an outlet of the housing in response to the pressure differential across the valve member. As the pressure differential decreases above the pressure differential corresponding to the predetermined maximum rate, the valve member begins to close communication to prevent the flow from exceeding the predetermined maximum amount, and as the pressure differential increases communication is decreased so that the maximum predetermined flow rate is not exceeded.

Abstract: A sunshade assembly for use with a child or infant safety car seat has a canopy mounted on a plurality of ribs pivotably carried at respective ends of a base portion on which the car seat may be positioned. The base portion is formed from a pair of transversely extending brackets adjustably connected together so that the base may be expanded or contracted to receive car seats of varying widths. A transversely elongated slot in one of the brackets permits the brackets to be adjustably connected together. The ribs are formed from tubular members which securely receive and grip tangs in the ends thereof, the tangs being formed integral with disks which overlay each other at the respective ends of the brackets and are pivotably connected to upstanding walls at the exterior ends of the brackets.

Abstract: A trailer hitch guide for use in guiding a trailer hitch socket onto a cooperating hitch ball mounted on the platform of the recess in a step-type bumper of a vehicle for towing the trailer. The guide has a plate from a first surface of which a pair spaced apart guide walls extend, the guide walls having a first portion extending substantially normal to the plate and a second portion diverging away from the space between the guide walls. The plate carries a pair of threaded connecting members which act to connect the plate to the riser wall of the recess, and a pair of threaded abutment members which act to abut the riser wall. The connecting members and the abutment members are adjusted to position the plate against a pair of stop members secured to the platform spaced from the hitch ball, the stop members being located so that when the plate engages the stop members a trailer hitch entering the space between the guide walls and just touching the plate will be properly located for coupling with the ball.

Abstract: A tufting machine having a broken yarn detector including a multiplicity of yarn engaging fingers mounted in a support block secured to the frame of the tufting machine. Each finger has an eyelet at one end for receiving a strand of yarn and is pivotably mounted on a rod externally of the mounting block so that the fingers may be supported by the yarn in a raised position during normal operation, but pivotably drops when the yarn is broken. The rod is secured in position by a number of clamping blocks attached to the mounting block, the clamping blocks also having slots aligned with the slots in the mounting block at the location where the clamping blocks are secured for receiving the external ends of the fingers so as not to impede the pivotable movement. A light generator and a photoconductive receiver are mounted for detecting when a finger drops, the finger interrupting the transmission of the light beam to provide a signal which may be used to stop the tufting machine.