Abstract: There is described a method for passing through a wall or ceiling with elements such as electric cables, ducts, pipes, etc., whereby said wall has at least one passage opening for said elements or such an opening is made in said wall, which comprises making use of a cushion which is fireresistant enough, at least one surface of said cushion is covered with a fire-proof compound, said opening is closed with said cushion, a flange from fire-resisting material is arranged against at least one cushion surface for each element or element group, in such a way as to surround the element or element group, and the hollow space remaining inside the flange is filled with a fire-proof material.

Abstract: A deformable seal for breaches in architectural barriers is composed of a gel material surrounded by a retaining structure. The seal, when used where a member penetrates such a barrier or in a gap between two such barriers allows repeated limited amounts of generally axially movement of the member or barriers while retaining structural continuity and insulating ability.

Abstract: A flexible liner, e.g. of rubber, for a manifold or apertured plate having collared apertures is disclosed, the manifold or apertured plate being part of a header tank of a heat exchanger having a bank of tubes, such as an automobile radiator. The liner has holes rimmed with sleeves corresponding to the collared apertures of the manifold or apertured plate. The sleeves are squeezed between their associated tubes and collar to effect fluidtightness around the tubes. To prevent stress developed in the sleeves being transmitted to the rest of the liner, a zone of reduced section surrounds each hole and preferably is of similar contour and coaxial therewith. The zones of reduced section are preferably grooves opening onto the side of the liner remote from the side from which the sleeves project.

Abstract: A liquid feeder comprises a liquid suction and delivery pump which withdraws a liquid such as a culture solution, buffer solution, enzyme solution or the like which is retained in a liquid storage container as refrigerated or at a reduced temperature and delivers it through a flexible tube for injection into a culture vessel located within an incubator. The tube is inserted into an inner pipe and is sealingly secured thereto. The inner pipe is detachably and hermetically mounted in an outer pipe which extends through and is secured to a wall forming an environment isolating layer of the incubator. An eccentric crankpin which is driven by a motor is connected through a link with another crankpin having a greater eccentricity, the latter crankpin being driven for rotation to cause a reciprocatory rotating motion of a driven shaft about its own axis through an angular extent of less than 180.degree..

Abstract: This invention relates to an improved system of providing power having a unique generating means of the nuclear reactor variety adapted with a plurality of steam generators in the form of replaceable modular units of the expendable type for the attainment of the optimum in effective and efficient vaporization of fluid during the process of generating power.

Abstract: The method of flue and fireplace cleaning includes the preparatory steps, if needed, of cleaning out ashes from a pit or sump, followed by connecting a vacuum hose to a low point in each system and spraying an industrial type detergent steam spray through a steam hose from the top of the chimney downward, loosening all sooty deposits in the form of a wet slurry which is collected and removed through the vacuum hose. A fireplace is cleaned by a similar steam spray and vacuum operation after sealing the fireplace opening by means of a tight-fitting shield having openings for the steam and vacuum conduits. In flue cleaning the vacuum hose is connected by means of an adaptor having an inwardly projecting ledge which intercepts falling debris and directs it into the hose, and in industrial installations the vacuum removal system may be replaced by a removable receptacle occupying the bottom of a stack in a position to receive the debris from periodic steam cleaning operations.

Abstract: A fire and/or liquid seal in a structural wall has a tube-like support extending through the wall with conduits positioned in the support and surrounded by insulation material in the form of silicone foam in one embodiment or packed ceramic fibers in another embodiment with protective shield means being clamped to the support and the conduits on the opposite sides of the wall; in another embodiment a layer of silicone elastomer is provided in a tube-like support extending through the wall adjacent a layer of silicone insulating foam surrounding conduits extending through the support in a penetration seal.

Abstract: A lightweight pyrogen igniter assembly including an elongated molded plastic tube adapted to contain a pyrogen charge and to be inserted into a rocket motor casing for ignition of the rocket motor charge with a molded plastic closure cap provided for the elongated tube and including an ignition charge within the cap for igniting the pyrogen charge and an electrically actuated ignition squib within the cap for igniting the ignition charge. The ignition charge is contained within a portion of the closure cap and it is retained therein by a noncorrosive ignition pellet retainer or screen which is adapted to rest on a shoulder of the elongated tube when the closure cap and tube are assembled together. The interior of the closure cap and the exterior of the elongated tube are provided with matching tapered spiral buttress threads to serve as the attachment means therefor.

Abstract: A nuclear reactor pressure vessel nozzle penetration device for fluid coolant delivery to the reactor core or to modular heat exchangers located within the vessel is described. The nozzle penetration device comprises a nozzle conduit having an annular double wall open at one end with thermal insulation therebetween, having the outer wall end attached to a portion of the reactor pressure vessel and disposed radially therefrom forming an air space therebetween.

Abstract: A dust seal between a rotatable shaft and a passageway through a bin wall. A split sleeve surrounds the shaft and each section thereof carries a laterally extending plate section. Adjacent edges of the plate sections abut and are secured to each other to provide a composite plate which covers the passageway and overlies the adjacent portion of the bin wall. Threaded members carried by the bin wall extend through elongated slots in the plate sections with each slot being of a width and length greater than the diameter of the threaded member to permit adjustment of the plate sections relative to the bin wall.

Abstract: A hose coupling retainer assembly having a support member with an opening which receives an elastomeric member through which the hose coupling extends, all for snugly supporting the coupling and permitting some deflection in the alignment of the coupling and dampening vibrations to and from the coupling. The coupling is free to move axially of the elastomeric member, to thereby permit the deflection or tipping of the coupling relative to the elastomeric member without disconnecting the coupling.

Abstract: Tube passages slightly bigger than the tubes are formed in a plate. A soft resilient sheet is placed on one side of the plate. The tube is forcibly inserted in the tube passages and draws a portion of the sheet which is then cut. In the assembly of the sheet, which has a bigger thickness than the interval between the tube and the tube passage, forms a flange beyond the tube plate.

Abstract: A seamless one-piece metal sleeve coupling is adapted at one end to couple with an end of an electric conduit and is flared at the other end to a size larger than the entry opening in an electric junction box. The flared portion of the sleeve has a reduced end portion which is small enough to enter the box opening. An annular shoulder for engaging the exterior box margin about the opening is formed at the junction of the flared portion and reduced end portion. A plurality of outwardly bent gripper arms are formed in the reduced end portion for engaging the interior box margin about the opening. The reduced end portion is split in at least one location and has an expansion joint bridging the split.

Abstract: The proximal portion of a tracheostomy tube extends through an opening in the central body of a retaining member that is held against the front of the neck of a patient. A pair of laterally spaced struts at opposite sides of the opening are connected at one end to the central body. Means rigidly connected to the proximal portion of the tube extend laterally therefrom in opposite directions for connection to the struts extending forward beside the tube, whereby to hold the tube in place.

Abstract: An assembly for passing an elongated member or members through an aperture in a wall or panel including a collar and a split ring retainer for locking the collar into the panel aperture. In a preferred embodiment the split ring retainer is assembled into an annular groove adjacent the panel for preventing axial movement of the conduit relative to the panel.

Abstract: A connection is provided between pipe (principally sewer pipe) and the wall of a manhole or like structure, whereby a hole passing through the wall of the manhole is provided with sloped tapers opening toward each side of the wall, through which the pipe is received, with resiliently compressible ring members being provided at each side of the wall, arranged in wedged engagement between the pipe and each tapered portion of the wall, clamping the pipe to the wall. The manhole will principally be of the cylindrical cast concrete type, and the rings will preferably be of the O-ring type. The pipe may be of various constructions. A particularly novel technique is provided for facilitating the connection, whereby forces exerted on the pipe from inside the manhole after a compressible ring has been applied thereto, are maintained while another ring is rolled into position against the tapered exterior surface, and then swaged into place.

Abstract: A connection of a first pipe to the wall of a second pipe or container is disclosed. A hole is formed through the wall of a second pipe or container which is of a diameter smaller than the outer diameter of the first pipe. At least the connection end of the first pipe consists essentially of a polymer of ethylene or a copolymer of ethylene and a small quantity of mono-1-olefins having from 2 to 8 carbon atoms. The polymer preferably has a weight average molecular weight of above 200,000. The connection portion of the first pipe is cold-swaged and inserted into the hole. Due to the mechanical memory of the cold-swaged end of the first pipe, it recovers towards its original shape to form a firm connection between the first pipe and the second pipe or container wall. A sealant can be applied between the first and the second pipe.

Abstract: An electric service panel for underground service installations, wherein the electrical cable for supplying electrical power to the service panel leads to the service panel from below ground, said service panel having an elongate opening in a bottom wall portion thereof and a cable attaching adapter at the opening. The adapter can be laterally adjusted relative to the bottom wall and secured in adjusted position to thereby permit the point of entry of the cable into the service panel to be adjusted to compensate for misalignments between the cable and the service panel.