Abstract: A method and apparatus for annealing cylindrical cases for ammunition cartridges or other tubular casings is provided. In one embodiment, a case annealing apparatus is provided. The case annealing apparatus includes a base, a feeding device having a first end tapering to a second end that is coupled to the base, a rotatable feed wheel assembly disposed adjacent a second end of the feeding device, a linear slide mechanism disposed adjacent the rotatable feed wheel assembly defining a portion of a case receiving region, and a heating device disposed adjacent the case receiving region, the heating device operable to heat a portion of a case retained in the case receiving region.

Abstract: Multilayer foam-film composite structures in which the cells of at least one foam layer have an anisotropic orientation exhibit at least one enhanced property of toughness, tear resistance and puncture resistance in comparison with a foam-film composite structure alike in all aspects except for the anisotropic orientation of the cells of at least one foam layer.

Abstract: This invention relates to a heat exchanger and to a method of manufacturing a heat exchanger. The heat exchanger has a number of tubes and at least one tube plate. The ends of each tube are located in a respective opening in the tube plate(s). The ends of each tube contain a respective insert, the insert acting to expand the end of the tube into sealing engagement with the tube plate.

Abstract: Multilayer foam-film composite structures in which the cells of at least one foam layer have an anisotropic orientation exhibit at least one enhanced property of toughness, tear resistance and puncture resistance in comparison with a foam-film composite structure alike in all aspects except for the anisotropic orientation of the cells of at least one foam layer.

Abstract: Disclosed herein is an apparatus and method for hygienic disposal of a sanitary product. The apparatus comprises a biodegradable bag for disposal of the sanitary product. The biodegradable bag comprises a catch clip, a pull stick, and an adhesive strip. The catch clip, affixed at the closed end of the biodegradable bag, seizes the sanitary product into the biodegradable bag. The pull stick holds the biodegradable bag in a predefined position over the seized sanitary product during inversion of the biodegradable bag over the seized sanitary product. The inverted biodegradable bag with the seized sanitary product is then twisted and sealed airtight using the adhesive strip affixed towards the open end of the biodegradable bag. The biodegradable bag prevents the user from coming in contact with the sanitary product, thereby providing hygienic disposal of the sanitary product.

Abstract: Disclosed herein is an apparatus and method for hygienic disposal of a sanitary product. The apparatus comprises a biodegradable bag for disposal of the sanitary product. The biodegradable bag comprises a catch clip, a pull stick, and an adhesive strip. The catch clip, affixed at the closed end of the biodegradable bag, seizes the sanitary product into the biodegradable bag. The pull stick holds the biodegradable bag in a predefined position over the seized sanitary product during inversion of the biodegradable bag over the seized sanitary product. The inverted biodegradable bag with the seized sanitary product is then twisted and sealed airtight using the adhesive strip affixed towards the open end of the biodegradable bag. The biodegradable bag prevents the user from coming in contact with the sanitary product, thereby providing hygienic disposal of the sanitary product.

Abstract: Multilayer foam-film composite structures in which the cells of at least one foam layer have an anisotropic orientation exhibit at least one enhanced property of toughness, tear resistance and puncture resistance in comparison with a foam-film composite structure alike in all aspects except for the anisotropic orientation of the cells of at least one foam layer.

Abstract: A turbulator for a heat exchanger tube, and a method of manufacturing the heat exchanger tube. The turbulator comprises a mesh, ideally a woven mesh, of material, ideally metallic wires. The mesh is formed into corrugations of a size substantially to fill the heat exchanger tube. The method comprises the steps of: making a mesh of material; forming the mesh into corrugations; and fitting the corrugated mesh into the heat exchanger tube so that the corrugated mesh substantially fills the heat exchanger tube for some or all of its length. The turbulator and method are particularly suited to flat heat exchanger tubes.

Abstract: A nonblocking coated elastomeric film comprises an elastomeric polymer film layer and a nonblocking solvent-based coating layer. The coating layer comprises a nonblocking coating component. The coating layer may be applied to one or both surfaces of the elastomeric polymer film layer.

Abstract: This invention relates to a tube finning machine (10), and in particular to a machine capable of fitting several fins (26) to one or more tubes (26) at the same time, the assembled finned tube being suitable for heat exchange applications. According to one aspect of the invention there is provided a tube finning machine for mounting extended surface members (96) upon one or more tubes, the machine having a base (10), carrier means movable relative to the base, drive means (20) for moving the carrier means (18) in a longitudinal direction, and cartridge means (24) for locating a plurality of extended surface members (26), the cartridge means having respective support means (30) for each extended surface member, and at least some of the support means being movable relative to the cartridge. There is also provided a method of using a machine as herein defined for finning a tube.

Abstract: This invention relates to a tube finning machine (10), and in particular to a machine capable of fitting several fins (26) to one or more tubes (26) at the same time, the assembled finned tube being suitable for heat exchange applications. According to one aspect of the invention there is provided a tube finning machine for mounting extended surface members (96) upon one or more tubes, the machine having a base (10), carrier means movable relative to the base, drive means (20) for moving the carrier means (18) in a longitudinal direction, and cartridge means (24) for locating a plurality of extended surface members (26), the cartridge means having respective support means (30) for each extended surface member, and at least some of the support means being movable relative to the cartridge. There is also provided a method of using a machine as herein defined for finning a tube.

Abstract: This invention relates to a tube finning machine, and in particular to improvements to such a machine. The invention relates to the field of heat exchangers, and in particular to the fitment of extended surface members (or fins) to the tubes of a heat exchanger so as to enhance the heat exchange. The tube finning machine has a rigid base, a clamping means for clamping a number of tubes, a carrier means movably mounted to the base, and a drive means by which the carrier means may be moved to a predetermined position relative to the base, and therefore relative to the tubes clamped thereupon. The improvements disclosed include those relating to support means for the tubes, clamping means for the tubes, and guide means for the fins as they are delivered to the carrier means.

Abstract: This invention relates to a facade plate, method of assembly, assembled heat exchanger, and kit of parts therefor. The facade plate is adapted for securement to at least part of the tube plate of a heat exchanger, the facade plate having apertures conforming to openings in the said part of the tube plate, the facade plate being of a plastic material. The method of mounting the facade plate to the tube plate includes the steps of {i} securing a locking member within the end of each one of many or all of the heat exchanger tubes; {ii} placing the facade plate against the tube plate with the apertures aligned with respective tube plate openings; {iii} selecting a set of tubular inserts which have a part adapted for engagement with a locking member; {iv} passing a respective tubular insert through all or many of the apertures and into the corresponding tube so that the said part engages the locking member.

Abstract: A heat exchange unit for a heat exchanger which includes a first tube with an outer surface and extended surface members located axially along the outer surface. Each member has a tube engagement surface and are axially Positioned. There is also taught a heat exchange fin block having a heat exchange unit with a second tube interconnected to the first tube by the extended surface members, wherein the extended surface members being tube fins at predetermined axial spacings. A tube finning machine is disclosed which includes a base with clamping means mounted thereon, carrier means movable relative to the base, and drive means for moving the carrier means. The clamping means clamps a portion of the first tube, and the carrier means transports at least one fin to an axially predetermined position adjacent the portion.

Abstract: This invention relates to a bore plug and to a bore plugging method, usually but not necessarily for tubes, and has particular (but not exclusive) application for the isolation of defective heat exchanger tubes. The bore plug comprises a sealing member and a holding member, the sealing member being adapted to span the bore, the sealing member having a longitudinal axis and an axial opening to receive the holding member, the holding member being insertable into the opening solely by axial movement. The method includes the steps of {i} pushing the sealing member axially into the bore, and {ii} pushing a holding member axially into the opening so as to urge part of the sealing member into sealing engagement with an inner surface of the bore.

Abstract: A clamp for connecting together two parallel elongate members has a pair of body parts with respective recesses that can be brought together to define a through-opening receiving one of the members. To one side of the through-opening each body part has spaced tubular portions with coaxial bores. The tubular portions of the body parts can be meshed together to align their bores and the other of the elongate members inserted through the bores to lock the body parts together axially but allowing them to pivot on the further member. To the opposite side of the through-opening the body parts have snap-fastening recesses that engage a clamping lever. Cam mechanisms between the clamping lever and the body parts allow the body parts to be flexed together by pivoting the lever, so gripping both elongate members and locking them together releasably.