Abstract: The anti-bubble safety valve comprises a liquid-admission chamber which is partly delimited by a diaphragm in cooperating relation with a seating provided with an outlet pipe. Thus the liquid which is present within the chamber is directed into the diaphragm-seating interface and passed in laminar flow towards the outlet pipe. The chamber is provided with a passageway to the surrounding atmosphere for the discharge of any air bubble which may have been admitted.

Abstract: An intravenous catheter apparatus comprising an intravenous catheter tube, a manually guidable circumferentially deformable elastomeric bore-defining tubular inserter integral with and in axial alignment with the catheter tube for use with a patient, and a needle concentric within the catheter tube and inserter and extending through at least part of the bore of the inserter to beyond the distal end of the catheter tube, the inserter comprising opposed laterally extending wings adapted to be manually compressed together from an at-rest position to a needle control position, the bore of the inserter being sufficiently large to permit retraction of the needle from the catheter tube and the inserter when the inserter is at rest, and when the inserter wings are compressed to the needle control position being sufficiently constricted to enable the inserter to grip the needle firmly to permit inserter-forced injection of the distal end of the needle into the body of a patient.

Abstract: A pneumatic injection apparatus featuring a fluid actuated drive and control system is disclosed. The apparatus, in its various aspects, has a modular construction so that it may be quickly disassembled, both mechanically and pneumatically, for easy maintenance and repair. Thus, for example, a retention means against which an animal part is placed for injection, is pneumatically connected through a release manifold mechanism to permit the retention means to be pneumatically decoupled from the remainder of the apparatus both quickly and easily. The pneumatic drive system is provided with a shock absorbing system to reduce the forces and stresses to which the various syringe elements of the system are subjected. Additionally, a fluid flow path is provided from a presettable counter to the retention means whereby a gas flow is provided when the preset count has been reached.

Abstract: A cleansing and applicator device is disclosed, which is especially useful in treatment of the perineal area of the human anatomy. The device comprises a generally conically shaped applicator body, formed preferably of a good heat conductor, the device being hollow and closed at the base thereof by a removable cap, whereby a cooling or heating liquid may be provided to the body interior. A flexible and compressible covering structure for effecting cleansing and treatment is fitted about and thereby encloses at least the portion of the applicator body including the apex. The covering structure preferably includes multiple layers, including at least one moisture-absorbent layer. The applicator body may include a necked-in portion toward the base thereof, so that the covering structure can be frictionally secured to the body, such as with an elastic band or a clamp.

Abstract: Pressure-sensitive adhesive tape closures for diapers or other garments are formed from backing strips which are divided into three portions of roughly equal area. One end portion and one of the other portions are surfaced with pressure-sensitive adhesive, while the remaining portion is surfaced with a release material; the latter two portions are folded together. In use, the first end portion is adhered to one garment border, a second border juxtaposed or overlapped, the folded portion of the closure then unfolded, and the thus-exposed adhesive surface adhered to the second border. These closures may be formed by cutting parallel strips across an elongate sheet of appropriately configured convolutely wound adhesive-coated sheet material.

Abstract: A disposable vascular tourniquet for controlling the constriction of a blood vessel during surgery. The vessel occluder comprises a flexible tubular sheath having a clamping structure disposed at its proximal end. The clamping structure is a unitary molded plastic part which has a tubular base portion adapted to be inserted into the proximal end of the flexible sheath and projecting from this base portion are bifurcated fingers, one of which includes a transversely extending latch portion which is adapted to mate with a recess on the other finger. A retractor or snare having a hook at one end and a ring-type handle at the other end may be inserted between the fingers of the clamp when in its unlatched condition and through the tubular base of the clamp and the sheath so as to extend outwardly from the distal end of the sheath. A cord may be looped around a vessel to be constricted and the ends of the loop are captured in the hook of the retractor.

Abstract: Self sealing cannula automatically maintains insufflation pressure in a body cavity. A slotted elastomeric valve is positioned in the valve seat with the slot disposed over the passage. The elastomeric valve is compressed to seal the slot, thus sealing the cannula passage.A surgical instrument such as a trocar or laparoscope may be slid through the cannula passage, which remains sealed regardless of the presence or absence of the surgical instrument within the passage.

Abstract: A catheter comprising, an elongated shaft having an inflation lumen extending along the shaft, and a pair of spaced annular ledges recessed from an outer surface of the shaft and defining spaced bonding surfaces extending circumferentially around the shaft. The shaft has an elongated section extending between the ledges and recessed from the bonding surfaces, with the shaft section defining an inner part of a cavity communicating with the inflation lumen intermediate the ledges. The catheter has an annular sleeve of elastic material having a thickness approximately equal to the distance between the bonding surfaces and the outer shaft surface adjacent the ledges, with the sleeve having a length approximately equal to the distance between remote ends of the ledges, and with opposed ends of the sleeve being bonded to the bonding surfaces circumferentially around the ledges.

Abstract: A disposable, tube-and-shell heat exchanger for controlling the temperature of blood. The tube portion includes a plurality of parallel tubes having serpentine inserts therein in heat-exchange contact with smooth inner walls of the tubes. The tubes are of sufficient number, length and flow area to permit gentle laminar blood flow at 37.degree. C. of up to five liters per minute.

Abstract: There is disclosed, a disposable, preferably pregelled electrode construction for the transcutaneous application of electrical pulses to provide a stimulus thereby producing involuntary neuromuscular contractions. The electrode is comprised of a base section formed from non-conductive material such as cellular plastic foam. At least two closed-bottom reservoir chambers are formed in the base section for housing a quantity of electrolytic gel, with a cellular sponge-like pad disposed in each chamber and saturated with said electrolytic gel. An electrical terminal assembly is provided for each reservoir chamber in the form of a two-piece snap-type fastener mounted to the base section through the bottom wall of the chamber. Each terminal assembly includes an inner eyelet in surface engagement with the gel pad, and an outer stud engaged with said eyelet for connection to an electrical lead from a pulse generator.

Abstract: An electrode carrying member which is inserted with forceps into the epicardial muscle and which comprises a substantially parallepipedic elastic body having two large planar faces; two parallel long sides and two parallel short sides, a conductor attached to the first one of the large faces; four small inwardly curved teeth attached to the second large face close to the corners thereof; each tooth having a sharpened thin point; the teeth next to each of the long sides being arranged in a straight line running parallel to said long sides with the points of opposing pairs of teeth directed towards each other and forming an arc of a circle separated by a gap; a thin electrode point projecting from the center of the second large face midway between said opposing pairs of teeth; a stub projecting from each of the short parallel sides and receptacles on the forceps receiving the stubs.

Abstract: The disclosure teaches an electronic apparatus for stimulating the muscles of a patient by disposing electrodes on the outer surface of the patient in the vicinity of the muscles. The stimulating wave consists of a composite signal comprising bursts of a sine wave, having a frequency greater than 500 Hz, and preferably in the range of 2000-3000 Hz, modulated by a signal at a frequency less than 500 Hz, and preferably in the range of 40-60 Hz. The bursts are applied for 2-20 second periods separated by 2-50 second rest intervals. The apparatus includes safety circuits which sense the current to the electrodes and turn off the stimulating waves on detection of a no load or overload condition. The apparatus also includes a power amplifier with a gain control and a switch associated with the gain control such that, if, at the beginning of any treatment, the gain control is not set to zero, stimulating waves will not be applied.

Abstract: A combine having a single rotor extending longitudinally for axial feed and discharge having a concave directly beneath the rotor and a separation grate along one side of the rotor adjacent the peripheral path thereof for discharge into a space at one side of the threshing compartment which is formed by laterally offsetting the axis of the rotor from the central axis of the compartment, and a deflector directs the material from said space substantially centrally onto a grain receiving member below the concave and extending between opposite sides of the threshing compartment to prevent overloading of one side of said compartment as in conventional single axial rotor type combines.

Abstract: The feeding system for an axial flow rotary combine in which the separator is disposed generally fore-and-aft includes a dual auger feeder house in which a pair of side-by-side upwardly and rearwardly inclined augers are driven in such directions that a major part of the crop material handled is conveyed in a concentrated high speed stream between the augers and delivered in undershot fashion to be engaged by a separator infeed rotor for transfer downstream to a coaxial threshing section. In the preferred embodiment the infeed rotor and its housing are generally frusto-conical in form, the rotor including a frusto-conical core carrying four equally spaced axially extending tapered feed bars, each bar having a ramp-like cross section, with the rotationally leading edge of the ramp radially closer to the rotor axis than the trailing edge.

Abstract: A smoking composition comprising tobacco and a catalytic agent for causing a decrease in the yield of polycyclic aromatic compounds arising from pyrolytic reactions of the composition, the agent being selected from the group consisting of finely divided unsupported metallic palladium or palladium salts which are heat decomposable into metallic palladium.

Abstract: Herein described is a combination key ring and smoker's tool which includes a cylindrical body which has a plunger protruding from one end of the body. By manipulation, the plunger extends outwardly from the body and can be used for packing a pipe bowl with tobacco. It can also be used as a device for holding cigarettes. An end clip is connected between the plunger and the body and has a downwardly depending knife-like edge to be used as a pipe scraper. Rings are attached to the clip in the end of the plunger device and can be attached to the smoking tool.

Abstract: A device for automatically curling hair includes a dome-shaped housing having an inlet opening and a longitudinal axis. A fixed rod having a heater therein is immovably positioned coaxially within the housing. A driving rod is positioned within the housing at a location radially outwardly spaced from the fixed rod and is rotated in a path about the fixed rod. A spiral-shaped member is positioned eccentrically about the fixed rod and has an end fixed to the driving rod. Rotation of the driving rod causes the spiral-shaped member to eccentrically rotate about the fixed rod.

Abstract: Improved self-grinding valve is provided with corrosion-protecting features and an improved floating coupling between the valve stem and valve disc whereby, when the valve disc is brought into contact with its seat, a selected rotation of the valve disc will produce a grinding of the seat, followed by a disengagement of the valve stem from the valve disc. When this disengagement takes place, the full torque load of the stem can be imposed upon the valve disc to obtain the desired seating of the same. The valve stem is advantageously comprised of improved telescoping and theadedly engaged sections that operate to relieve the forces used to hold the valve disc against the seat upon the initial opening of the valve whereby the amount of torque required to ultimately rotate and free the valve disc from its seat is materially reduced and seizing of the valve disc relative to its seat avoided.

Abstract: A fire hydrant having a generally elbow-shaped hydrant shoe with an improved interior bowl configuration and an improved hydrant valve for minimizing head or flow loss of the fire hydrant between the inlet opening of the shoe and the outlet nozzle positioned on the upper portion of the hydrant barrel. The interior bowl of the shoe, adjacent its inlet, is provided with a diverging transitional surface of rotation having a generally part frusto conical shape and, adjacent its outlet, is provided with a converging transitional surface of rotation having a generally part frusto conical shape, the transitional surfaces of rotation merging with the shoe's part spherical chamber.

Abstract: Apparatus for altering flow in an existing pipeline, including a shear and first actuator means for cutting transversely through the pipe wall and independent second actuator means for moving a surface associated with the shear into engagement with a sealing surface surrounding the pipe. The shear operates through a rotary valve element, mounted directly in a body of a housing surrounding the pipe. Channels encircling the shear sealing surfaces and rotary valve element distribute sealant between the respective mating surfaces to assure a fluidtight assembly. Fluid circulates through a chamber carried on the housing to isolate the first shear actuator means from the pipeline fluid. In a variant of the invention, a flapper plate valve replaces the rotary valve element where the pipe size is relatively large.

Abstract: In a device for tapping gas from a gas-containing cartridge, there is provided a screw socket into which a threaded end of a tap forming part of a gas-using appliance is screwed, a piston spring-loaded in the direction of the end of the socket and bearing at its end sealing means engaging the cartridge, a perforating needle mounted on the socket and extending through the piston, and stop means to limit the travel of the piston under the action of its spring. The piston is hollow and of larger diameter than the socket which latter extends into a bore in the piston, the piston sliding over and outside the socket. By this means, the risk of seizure of the piston in prolonged use of the device is considerably reduced.

Abstract: A float controlled valve including a first body having a passage passing through it, the outlet end of the passage defining a valve seat, a co-operating second body having a closure member, the first body and second body being telescopically movable relative to each other while being in sealing contact to define a chamber including the valve seat and the closure member, and an outlet from said chamber, means being provided for moving the second body with closure member axially relative to the first body with valve seat to cause closing of the valve. A stop valve is built into the passage upstream of the valve seat to isolate the valve seat from supply pressure.

Abstract: The valve assembly employs a peak flow valve with a first adjustable orifice which restricts gas flow through a conduit to establish a peak flow, a peak flow control for adjusting the size of the orifice, a separate valve which progressively closes a second conduit orifice in response to increases in the conduit pressure so as to achieve a desired decay rate for periodic gas flow, and a decay rate control which adjusts the initial closure of the second orifice. The valves are interconnected by means of a coupling which, in response to the decay rate control being adjusted, automatically adjusts the size of the first orifice by an amount sufficient to substantially compensate for changes in the peak flow rate caused by the decay rate adjustment.

Abstract: A time delay valve of flexible material to be supported in an opening in a wall and having a body member provided with a recess permitting the use of a tool to position the valve in the opening in the wall from one side of the wall with the recess also accommodating displaced material during the time that the valve is being installed. The valve has an enlarged head which closes the opening and flexes away from the wall to open and permit relatively free fluid flow. A metering groove extends radially of an annular sealing surface formed on the perimeter of the head to restrict and delay fluid flow when the valve is in a closed position relative to the wall.

Abstract: An inline ball valve of a relatively small outer diameter, with external connecting portions formed at the ends thereof, which when open provides a passage therethrough which is free of voids. The external connecting portions for making an inline connection of the valve can be threaded, flanged, or adapted for quick clamps. A two-piece cage is provided inside of the ball valve for rotatably supporting the internal ball. The two-piece cage is formed with openings, one through each piece, which are aligned with the openings in the valve body. Each cage piece includes an annular surface, formed around the opening in a plane perpendicular to the flow passage, which is engaged by a mating annular surface on the valve body, to force the cage pieces together and into high pressure contact with the ball when the valve body is assembled. High pressure contact between the cage and the ball occurs in proximity to the annular cage surfaces.

Abstract: A valve has upstream and downstream seat assemblies each having a pair of spaced annular face seals in concentric relation to form inner and outer face seals. A movable valve member (26, FIG. 2; 88, FIG. 8) has a main bore therethrough and is mounted in a valve chamber between the seat assemblies for movement between open and closed positions. A pair of auxiliary fluid passageways (72, 74, FIG. 2; 112, 114, FIG. 8) are located in the valve member at opposite ends of the main bore. Each of the auxiliary passageways has its outer end opening to the side of the valve member radially outward of the main bore and an inner end opening into the main bore.

Abstract: A rotary four way tandem center valve including a spool member provided with a central spool projection with four axially extending grooves in its outer peripheral surface and two intersecting channels defined therein, a first and second operation port, an inlet and outlet port, and means for directing pressure passing from the inlet port to the outlet port to a selected one of said operation ports while at the same time relieving pressure in the other operation port.

Abstract: Manifold assembly having a plastic body with intersect flow passages and valve members for controlling communication between the passageways. Stops limit the movement of the valve members between predetermined positions, and the valve members can be removed from the body and reinstalled in reversed position to provide fixed communication between certain of the passageways. Externally threaded nipples are provided for connecting the assembly to external fixtures, and resilient sleeves are inserted between the valve members and the body to form fluid tight seals.

Abstract: A disposable pressure vessel includes a gas valve containing cylindrical cap encircled by an O-ring. The cap is bonded to an annular flared portion of a generally cylindrical rubber bladder and is disposed in a hollow cylindrical housing such that the cap compresses the flanged portion of the bladder against a shoulder in the cylindrical housing. The cap is held in place by three equally circumferentially spaced, lanced portions of the cylindrical housing and the O-ring seals the interior of the cylindrical housing from the exterior.

Abstract: An accumulator comprising a cylinder and piston in which the front end of the piston is characterized by two spherical zones separated by a chordal zone while the opposed end wall of the cylinder is concave having a slope substantially the same as said chordal zone; the piston seal is an elastomeric ring supported on each side.

Abstract: Automatic loom stopping apparatus for use with a loom for detecting warp yarn breakage or improper shedding and actuate the loom stop motion means of the loom, comprising light beam emitter and detector means positioned adjacent the warp yarn path toward the supply end from the weaving zone of the loom forming a monitor light beam transversely spanning the open shed, the detector means providing a detector defect signal when any portion of a warp yarn or broken end interrupts the monitor light beam, amplifier and comparator circuitry for producing a processed defect signal responsive to the detector defect signal, timing pulse forming circuitry including a sensor monitoring rotation of the loom drive shaft for producing timing pulses indicating a predetermined phase time in the cycle of operation of the loom applied to a gate control pulse generator to produce short duration window pulses when the shed is in predetermined open condition, and first and second gate circuits conditioned by the window pulses and

Abstract: Webbing is formed by weaving wefts and warps of high extensibility and has warp threads of low or medium extensibility suitably spaced apart in the widthwise direction of the webbing and woven into the webbing to form energy absorbing portions.

Abstract: A combination pressure regulating and flow control valve which includes a valve body and cover means having an upstream port and a downstream port, and a fluid flow passage interconnecting said ports. An adjustable pressure regulator valve means is operatively mounted in said fluid flow passage. A check valve means is operatively mounted in parallel with said adjustable pressure regulator valve means, and it is operative to check the flow of fluid through said fluid flow passage when fluid is flowing through said fluid flow passage from the upstream port to the downstream port, and force it through the regulator valve means, and to allow flow of fluid through the check valve means when fluid is exhausted into said downstream port and out the upstream pressure port.

Abstract: A pants hanger is formed with parallel spaced first and second elongated support portions depending from a third support portion having a hook adapted to engage a horizontal clothes bar. The second support portion is cantileveredly positioned above the first support portion and is integrally connected by the first support portion to the third support portion. The free end of the second support portion extends past the integral connection of the first and third support portions to form a guide. In one embodiment, the support portions of the hanger are formed by bending a one-piece metal rod. The hanger is attached to a pair of pants by inverting both the pants and the hanger and then moving the hanger so that the second support portion slides onto one side of the pants, and the first and third support portions slide onto the other side of the pants. When the hanger is rotated to an upright position, the pants wrap around the second support portion and are retained in a depending position below the hook.

Abstract: In a wire twisting machine in which the ends of the tie wire are clamped while these ends are being twisted together to complete the tying of the product, there is proposed improved clamps which, unlike prior art clamps that have clamping strokes of a prescribed dimension, are actuated by pressure air in such manner that the clamping strokes thereof are terminated only when the clamping rods actually abut against their cooperating anvil or wire holding surfaces. Thus, wear or looseness of fit which may subsequently occur in the components of the machine do not adversely affect the clamping service or function of the clamping rods.

Abstract: The invention is an improved wire straightener die for rotary wire straightener machines and devices used in the production of wire and wire related products from various metals. Each wire straightener die consists of a single unit which is normally used with four other similar dies in a sequence arrangement. The die of this invention is used in any standard rotating wire straightening arbor. Each die in the sequence contains a hardened center core which increases the life of the die. Each die can be installed in the arbor in any one of four different positions, thus giving complete flexibility of use of the die.

Abstract: A breather bag for use in a sealed silo maintains pressure equilibrium between the inside and the outside of the silo by its volumetric change while preventing the ingestion of oxygen laden air. The breather bag is of generally arcuate or semi-circular shape and has a generally circular cross section. The breather bag includes at least one flexible conduit which extends between the breather bag and the silo roof and provides communication between the inside of the breather bag and the atmosphere. The breather bag is comprised of at least three plastic panels which are sealed together along overlapping edges. Two of the panels are a generally semi-circular shape and the third is a generally hour-glass shape. A continuous hanger strap is sealed along the upper arcuate center line of the breather bag to facilitate hanging the bag within a silo.

Abstract: A racquet display case for carrying, displaying and storing a racquet of predetermined overall length, the racquet having a handle of a predetermined cross sectional area and a head of a predetermined thickness and span. The case has a rigid frame defining a center opening, the preferred embodiment of the rigid frame includes a generally parallel upper and lower run of a length substantially equal to but slightly greater than that of the overall length of the racquet, and a first and second generally parallel end run extending between the upper and lower runs. The upper and lower runs are spaced from one another a distance substantially equal to but slightly greater than the span of the head end of the racquet. The frame includes means for holding the racquet in confining relation to the center opening. Compartment structure with an access opening are included on the frame and extend along the racquet handle.

Abstract: A roll-up place mat having a self-contained ring member for holding a napkin and a self-contained pocket member for holding dining flatware and capable of being rolled up and tied together while containing the napkin and flatware.

Abstract: A protective, slip-on cover made of soft, absorbant material and adapted to protect the sound box of an electric guitar. The cover is preferably made of a natural, soft fiber such as cotton and has front, side and back sheets which are sewn together to correspond generally to the shape of the sound box. The front cover has a recessed portion and a plurality of slots to allow installation and removal of the cover with respect to a guitar.

Abstract: In a pneumatic, tired wheel having a tubeless tire mounted on the rim of the wheel, the improvement comprising a toroidal support device to enable the tired wheel to travel in a flat state. The support device comprises an inflatable, toroidal, inner tube located on the rim for elastically clamping the tire beads against the rim flanges, said tube radially extending from the well of the rim to or slightly beyond the radially outer edges of the rim flanges, and a toroidal support element whose radially internal, circumferential wall section is impervious to puncture and lies adjacent the radially external, circumferential area of the inner tube, and wherein the outer surface area of the support element is spaced from the inner surface area of the tire when the tire is in its inflated state so that under normal travel conditions the support element does not contact the inner surface area of the tire.

Abstract: A safety wheel including a combined flat protector and bead stopper structure radially fitted in the tire around the inner periphery thereof and having a closed frame-like cross-sectional configuration of a substantial modulus of section. The flat protector, being made itself of an elastic material in a substantially H-shaped cross section, is easily deformable and can be readily inserted in the tire and, once combined with the bead stopper, which clamps the opposite side wall portions of the flat protector and the respective bead portions of the tire against the rim flanges, exhibits a substantial rigidity enough to support the vehicle weight, as when the tire is punctured. The rigidity of the flat protector per se is also increased by means of reinforcing cords of unstretchable material embedded therein.

Abstract: A large-sized pneumatic radial tire is disclosed. This tire comprises a tread including grooves, a belt composed of a plurality of rubberized layers each containing steel cords, and a carcass of a radial or semiradial construction. The tread includes two half regions divided with respect to a crown center, one of which being a region in a direction of plysteer due to the tire construction and the ground contact reaction force acting to steel cords of at least one rubberized layer disposed near the tread and the other being a region opposite to the direction of plysteer. Reinforcements are provided on walls of tread grooves at kicking-out side of the region opposite to the direction of plysteer.

Abstract: Tendency of a tire bead core to be rotated by the tire ply wrapped around the core, when the tire is expanded from a cylindrical or collapsed state to its normal toroidal operating state, particularly after the tire is cured, is inhibited, or eliminated by arrangement of the ply relative to the bead core which disposes the ply tension force direction at or nearly at the bead core center.The foregoing abstract is not to be taken as limiting the invention of this application, and in order to understand the full nature and extent of the technical disclosure of this application, reference must be made to the accompanying drawing and the following detailed description.

Abstract: A pneumatic tire cover has a carcase comprises at least one inner radial ply of threads of aromatic polyamide and at least two outer plies of threads having elongation values greater than those of the said aromatic polyamide and arranged in alternately crossing directions from one of said outer ply to another, while the inner radial ply or plies are such as to be able to bear the inflation pressure on its or their own.

Abstract: A mounting bracket which is simple, economic to manufacture and easy to install for the detachable mounting the head rail of a venetian blind assembly in a window opening or the like. In one form the bracket is of box-like configuration having panels with means for securing it to the side, top or front support surface of the window frame, a hinged front panel permitting pivoting from an open position to receive the ends of the head rail and locking means for latching the front panel in a closed position with the head rail in place. In another form, the bracket has flexible legs with tangs to engage with longitudinal ribs in the head rail and is pivotally mounted to release from the head rail when desired. Other features include a bumper insert for the head rail to resist transverse displacement when raising and lowering the blind and a novel control rod and ladder string arrangement facilitating complete closing of all the slats.

Abstract: A structure for mounting and apparatus for opening, closing, and locking a large, overhead door is adapted for buildings constructed on terrain which is not level and having floor and overhead structures that conform to the terrain. A sloping overhead truss spans a door opening and includes a widened faceplate along the length of its span to accommodate mounting a large overhead opening door along a horizontal line between vertical columns. A combination manual and automatic electrically powered door opening apparatus includes a counterweight, a coil chain and sheave for manual operation which is interchangeable with an electrically powered motor for automatic operation, all connected to a common lift cable which applies substantially vertical lifting force to the lower edge of the door for opening. Bias means for causing initial folding of door sections for opening, and locking apparatus for resisting folding of the door sections to prevent opening are also provided.

Abstract: The invention is for a method of pouring molten metal from a ladle to another vessel e.g. a mould, via an intermediate vessel e.g. a tundish, and to an intermediate vessel for us in such a method. Before pouring two refractory heat-insulating slabs are positioned in the intermediate vessel spaced apart and extending downwardly into the vessel. The slabs are pivotally mounted at an upper edge or in a wall portion of the intermediate vessel and positioned so that, on pouring the molten metal from the ladle into the space between the slabs, the slabs contain splash of the metal on initial pouring. As pouring is continued the slabs are raised by the molten metal and pivot about their pivotal mounting until they reach a generally horizontal position on top of the molten metal in the intermediate vessel when they form a heat-insulating cover.

Abstract: A critical gas boundary layer Reynolds number has been defined to indicate processing conditions under which wide glassy alloy ribbons result when processing under various gaseous atmospheres and pressures and casting onto a moving substrate at an impingement angle .alpha..

Abstract: The blow nozzle for use notably in foundry works in the so-called hot-box process for manufacturing sand molds and cores comprises a central barrel or tube on which a pair of tubular sleeves adapted to slide in relation to each other are fitted. These sleeves comprise diametrally opposite elongated notches and are indexed and secured to the filling tray of the hot box by means of a tip holder on which a plastic tip is resiliently fitted.