Abstract: An apparatus for producing a germ-free air flow in the vicinity of an operating table, comprising a coherent unit of a blower, filter means and air discharge pipes, which unit is to be positioned below an operating table in such a manner that the air discharge pipes extend below the lateral edges of the table, said pipes being provided with apertures adapted for directing air flows in a laterally downward direction.

Abstract: An all metal, low conductivity, high performance and relatively lightweight, composite structure, in the form of an insulation blanket is operably disposed to be exposed to a high temperature zone, e.g., a high temperature fluid, or on a supporting surface exposed to high temperature. The composite includes two metal skin members spaced from each other by a metallic member functioning as a spacing member. The spacing member is preferably deformed to contact the spaced skin sheets at spaced positions, the space between the skin sheets forming a fluid space which defines a zone of substantially reduced heat transfer by convection. When deformed, the spacing member, or an array of spacers, also provides an elongated path for conduction of heat, and defines a plurality of cavities of limited volume forming stagnant gas pockets. The skin sheets may be perforated to vent the cavities and to provide expansion space for absorbing thermal growth by the metal components of the composite.

Abstract: A rotating kiln having two rotating cylindrical chambers, these chambers having colinear axes which slope below the horizontal from the upper or loading end of the first chamber. The material to be processed into lightweight aggregate is introduced to the kiln at the upper end of the first chamber which is of narrower diameter than the second chamber. The lower end of the first chamber unites with the upper end of the second chamber providing an annular inner face for the second chamber.

Abstract: An improved easy-opening end structure for use with a container includes a retained tab and a captured panel which is also retained. The end structure includes a scoreline of an improved pinched score variety, defining a pour opening formed by fracture of the scoreline to release the panel formed by the scoreline. Preferably, the panel is retained on the end. The tab is affixed to the end, other than to the panel and includes an opening end positioned over the panel, but not secured thereto, and a lifting end spaced from the panel which is preferably downwardly dished and generally circular in shape.

Abstract: A device for separating floating or precipitating components from a liquid comprising a number of substantially parallel inclined passages between superposed partitions, and provided with additional mutually parallel guiding baffles at least at one extremity of this assembly for guiding the liquid and/or separated components towards the effective part of these passages without restricting the cross-section of the assembly. One or more slotted baffles transversely to these guiding baffles may improve the uniformity of the supplied liquid flow, and the latter may also be supplied by means of a slotted supply duct which is directed transversely to the guiding baffles.

Abstract: An improved easy-opening end structure includes a retained tab and a captured, retained panel, the latter defined by a scoreline and forming a pour opening upon fracture of the scoreline. The tab is fixed to the end wall, other than to the panel, and includes an opening end positioned over the panel and a lifting end spaced from the panel. The panel is connected by a retaining strip to the end wall, the retaining strip being formed between scoreline segments which are laterally located relative to the rivet. The rivet is surrounded by a rivet well of reduced thickness of material, a portion of the scoreline passing through the rivet well, while a coined formation defining a transition zone extends laterally of the rivet and overlies the portion of the scoreline located laterally of the rivet. The panel includes a depression formed therein forward of the retaining strip and located between the ends of a bead which is formed in the panel.

Abstract: A quick disconnect dual stud type of track tie-down fitting for use with a track having slots and lips includes an insert having a generally U-shaped body and including spaced integral legs arranged in parallel alignment. Cooperating with the insert is a retainer having apertures therein which receive the legs of the insert, the ends of the legs carrying studs which pass through the slots of the track and which can engage the lips of the track. Carried by the retainer and located between the studs is a locking nub which secures the tie-down fitting in the track by being received within a slot thereof while the studs are engaged with lips of the track adjacent to the slot. The retainer is biased into the locking position by springs cooperating with the legs of the insert to urge the retainer into the locking position. By forming the insert as an integral U-shaped member, the cost of the unit is substantially reduced while the overall structure is vastly simplified.

Abstract: Woven rope includes a plurality of warp strands which extend longitudinally and cooperate with at least one weft strand which pulls the warp strands radially inwardly so that the resultant cordage has the appearance and feel of round rope, i.e. a cross-sectional thickness to width ratio of at least 0.75. The resulting woven cordage has greater strength than comparable braided or twisted rope. The woven rope may be made by weaving a plurality of strands with a weft strand which is under tension to pull the warp strands inwardly, or in the case of strand material which shrinks, e.g. nylon, the rope may be woven slightly loosely in a general oval shape and treated in boiling water to bring about shrinking of the assemblage of strands into a generally round shape. In one form, pre-woven or unwoven longitudal strands form the center of the woven rope. Typical materials which may be used to form rope are those presently used, e.g. nylon, polyolefins, hemp. etc.

Abstract: An improved easy-opening end structure for use with a container includes a retained tab and a captured panel which is also retained. The end structure includes a scoreline of defining a pour opening formed by fracture of the scoreline to release a downwardly dished panel formed by the scoreline. The tab is affixed to the end, other than to the dished panel and includes an opening end positioned over a bead on the panel, and a lifting end spaced from the panel. As the lifting end is raised, the portion of the scoreline between the opening end of the tab and the attachment is popped and thereafter the opening end bears against the panel as the tab is raised further to complete progressive rupture of the scoreline by essentially a class 1 lever action and to push the panel downwardly and laterally through the formed opening. The panel may be hinged or fall free into the container.

Abstract: A releasable locking type buckle is made of two pieces of essentially flat material, the pieces forming two members which cooperate with preferably webbed type belts to form a securing assembly usable as a cargo securing device. One of the locking members receives a preferably webbed type belt fixedly secured thereto, while the other locking member includes a loop receiving portion, an end of which is fixedly secured. The second member is slidable along the first member between a locking position and an unlocking position. The loop includes a first leg positioned against the underside of the first member and is looped over the loop receiving portion of the second member with a second leg of the loop spaced from the first leg.

Abstract: An easy opening container wall comprising a container wall of sheet material having a line of weakness therein defining a tear portion at least partially removable from the container wall. Removal of the tear portion provides a relatively sharp edge along the tear portion. A guard is provided along the periphery of the tear portion to protect the consumer from injury. The guard is interrupted adjacent the location at which the line of score is initially ruptured to facilitate such initial rupture. The outer periphery of the guard and the score line are configured and positioned relative to each other to minimize interference by the guard during the opening operation.

Abstract: An aerosol dispensing system having an outer container, compressible inner container means positioned within the outer container, and means to compress the inner container means which are positioned between the inner container means and the outer container. A spray head and valve assembly are connected to the inner container means such that movement of the valve assembly to an opened position permits material within the inner container means to be expelled through the spray head in the form of a finely divided aerosol spray.The material within the inner container means includes a major amount of a finely divided powder product in admixture with a neutral propellant and a minor amount of an amorphous silica. The neutral propellant is capable of being adsorbed by the amorphous silica and the neutral propellant is present in amounts sufficient to form a substantially homogeneous wet-paste slurry or a substantially homogeneous liquid with the finely divided powder product and the amorphous silica.

Abstract: An apparatus for bringing about coalescence of particles suspended in a liquid by means of a transverse velocity gradient in the liquid flow in a substantially vertical duct caused by friction against the walls defining said duct, the latter being formed by one or more tube or hose sections, consecutive sections being interconnected by bends, and the cross-section of said duct increasing either gradually or step-wise from the inlet towards the outlet end of said duct.

Abstract: An easy opening ecology end having retained vent and pour tear strips is formed by an end wall having two lines of weaknesses. One line of weakness defines a vent opening while the other line of weakness defines a pour opening. Attached to each of the tear strips is a tab including a body member and end portions, the tab being attached to the respective tear strips by rivets. Each line of weakness terminates in a reversing curl to prevent continued complete separation of the tear strip. The lines of weakness, the reversing curves and the relative position and radii of the reversing curves cooperate to form a hinge line about which the ruptured tear strips are folded such that the tear strips are retained and folded back against the end wall.

Abstract: A component handler including a supporting structure and a holder on the supporting structure for holding a plurality of components to be tested. After a group of the components in the holder are tested, they are automatically released from the holder and allowed to fall under the influence of gravity along associated component paths. A memory which is located along these component paths is programmed in accordance with the test results. As the components fall along the component paths, the memory automatically directs the components into collection zones whereby the components are sorted in accordance with the test results.

Abstract: An apparatus for use in soil sounding in which a probe is mounted on a vehicle includes an improved simple device for monitoring the displacement of a reference surface from the ground level in order to provide an accurate indication of the position of the probe. One sensor indicates the displacement of the probe and the reference surface, which displacement is greater than the actual displacement of the probe into the ground. Another sensor indicates the displacement of the reference surface relative to the ground, these displacements being imputs to a subtractor which provides an output representative of the true displacement of the probe relative to the ground level.

Abstract: A lens is used to concentrate solar rays to heat an expansible fluid. Energy is extracted from the fluid to drive an electric current generator. The heated fluid may first pass through a heat sink to provide a more continuous flow of heated fluid to the current generating system. The lens itself may be biconvex and comprise two or more plates. If desired, the volume between the plates may be filled with a fluid, preferably having the same index of refraction as the material of the plates. Suitable apparatus may be provided to control the aximuth and bearing of the lens so that it is always situated as nearly as possible between the sun and the fluid container.

Abstract: A tank having an outlet conduit is provided with a valve assembly for controlling the flow of a fluid through the outlet conduit. The valve assembly includes a first valve element cooperating with a first valve seat formed by the conduit to provide a first valve. A second valve element cooperates with a second valve seat formed by the first valve element to provide a second valve. Valve opening means are pivotal on the tank to selectively open the second valve or the first and second valve to permit the discharge of fluid volumes of different magnitudes.Both the first and second valve elements can be heavier than equivalent volumes of the fluid so a first float is provided to maintain the first valve in its open state and a second float is provided to maintain the second valve in its open state. As the surface of the fluid descends, the respective floats close their respective valves at fluid levels dependent upon the initial height of the floats in the tank.

Abstract: A cementitious composition suitable for spray application in formation of a dense wall structure. The composition has a Brookfield viscosity of about 4,000 to about 9,000 centipoises (cps) as measured at 20 rpm with a number 3 spindle and contains about 50 to about 65 percent by weight of substantially spherical quartz sand having an average particle size of about 87 mesh to about 20 mesh. In addition, the composition has a low water-to-cement ratio in the range of about 0.3 to about 0.5, and contains a plastic-in-water emulsion composed of minute spherical plastic particles which intermesh with the spherical quartz to provide a dense wall structure having a low void content. The emulsion has a solids content of about 20 percent to about 50 percent by weight of the emulsion and, in addition, the composition contains a flow control material, such as a high molecular weight poly(ethylene oxide), and optionally a gel retarder.

Abstract: A rotating kiln having two rotating cylindrical chambers, these chambers having colinear axes which slope below the horizontal from the upper or loading end of the first chamber. The material to be processed into light-weight aggregate is introduced to the kiln at the upper end of the first chamber which is of narrower diameter than the second chamber. The lower end of the first chamber unites with the upper end of the second chamber providing an annular inner face for the second chamber.