Abstract: A conical spacer assembly for supporting and spacing one member relative to another member comprising a conical housing having a smooth outer surface and hole extending axially therethrough for receiving at one or both ends thereof a bolt in threaded arrangement therewith. A flat circular shaped clamp having an aperture extending laterally therethrough is provided for receiving through its aperture the housing of the spacer which clamp snugly engages the housing at a point along its length laterally thereof and engages and supports a rebar at one or more point around its periphery.

Abstract: A lead frame assembly is disclosed which interfaces with existing wire bonders using a single track design from the bonder through the molding process. During the molding operation, the bonded lead frame is transferred into the mold on a guide track system built into the mold chase. The mold closes and clamps the lead frame after which a compound charging system meters and injects a compound into the mold cavities. The mold is opened and the strip ejected and transferred out of the mold via internal guide tracks. A granular or pellet form of compound is used in the charging system. The lead frame assembly has side rails, between which a temporary and a permanent support structure is formed. The temporary support structure is removed from the bonded integrated circuits after the bonding process is completed, while the permanent structure is made a part of the bonded integrated circuit package.

Abstract: On a track for electromagnetically levitated vehicles, side guide rails are positioned on and secured to a beam-like support member forming the track by an apparatus made up of a transportation frame extending in the long direction of the support member and by installation truss frames located on and extending transversely of the transportation frame. Side guide rail installation arms are pivotally mounted on the installation truss frames. With the arms in an outward position the guide rails can be placed on and held by the arms. By pivoting the arms inwardly the side guide rails can be located along the outer sides of the support member. By raising the installation truss frame, the guide rails can be located relative to stators mounted on the underside of the support member. In addition, the final position of the guide rails can be established by moving the installation truss frames transversely of the transportation frame and relative to a plate strip on the upper surface of the support members.

Abstract: A method and an apparatus for bonding parts of a disappearing model used for casting. This method comprises placing portions of parts of a disappearing model to be bonded so as to oppose each other to form portions to be adhered, surrounding the portions to be adhered by an injection mold frame which is previously formed, has an internal shape that accords with the external shape of the portions to be adhered and comprises a receiving mold and an injection mold that has an injection hole formed therein to allow an adhesive to be injected, and injecting the adhesive into the portions to be adhered from the injection hole.

Abstract: An apparatus for forming a multi-colored integral vinyl skin shell including a heated mold and dual powder box arrangement wherein the mold is formed to include alternately positioned tear surfaces and recessed surfaces. The powder box has a plurality of spaced dams or dividers formed therein such that the dams cooperate with the respective recessed surfaces of the mold to provide clearance therewith that permit different colored powders in the compartments between the dams to cover the previously cleared tear surfaces and to flow past the selectively formed free ends of the dams to become integrally secured to the adjacent edge portions of the shell segments remaining in the areas of the recessed surfaces of the mold, forming the multi-colored, integral plastic shell.

Abstract: An concrete form system includes opposed polystryrene panels stacked to form a pair of parallel, spaced-apart walls, at least one of the walls having panels which are smooth on their inward surface. Tie slots are formed in the upper and lower edges of the panels and are spaced evenly such that slots in vertically abutting panels are aligned. The panels are horiziontally staggered to strengthen vertical joints. A single tie is utilized to interlock two vertically abutting panels in each wall. A special tie design is used with the smooth-faced panels to allow the panels to be removed after a concrete wall has been formed. Another embodiment of the tie design utilizes an enlarged outer paddle with a projecting rib which allows connection of vertical walers directly to the tie.

Abstract: Apparatus and method for injecting molten plastics material into a midsole cavity by the provision of channels entirely within at least one-half of a split side mold defining sides of the cavity. This arrangement eliminates the problems associated with injecting the molten plastics along a channel formed in the parting line between the side mold halves and particularly overcomes the problem of injecting molten plastics material incorporating a blowing agent to provide closed cells in the midsole.

Abstract: A three part mould for an engine cylinder block which has several aligned cylinders with parallel axes, several bearings for mounting a crankshaft having an axis perpendicular to the cylinder axes, voids formed around the cylinders, and recesses between the bearings and the cylinders, includes an upper segment, a lower segment and a central segment. The three segments are superposed in the direction of the cylinder axes. The upper segment forms the cylinders and at least one portion of the voids. The lower segment forms the bearings and at least one part of the recesses. The central segment forms matching parts of the voids and the recesses.

Abstract: An apparatus for injection moulding plastics closure elements into apertures in the central panels of a plurality of can ends comprises a first mould tool, a second mould tool, and a mechanism for bringing the mould tools together to clamp on opposed surfaces of each central panel and thereby define a mould cavity enclosing a margin of panel material around the aperture and spanning both sides of the aperture. A passageway in at least one of the moulded tools permits injection of plastics material into the mould cavity. The first mould tool includes a plurality of cavity defining mould portions each slidably guided in a respective bore in the first mould tool and a resilient support in each bore to urge each mould portion towards the second mould tool. A stripper plate surrounds the mould inserts and is formed with an annular recess situated laterally outside of and around each insert to receive the outer circumference of a can end to properly locate the can end.

Abstract: A manufacturing framework is used to manufacture a cosmetic puff for a liquid foundation. The cosmetic puff is manufactured by forming a latex film coating on one side of a crimp pattern plate by applying latex film compound thereon. The latex film coated plates are set in the manufacturing framework, and a foamed latex foam compound is injected into the manufacturing framework while coagulant and activator are added therein to thereby produce a gelled latex foam covered with latex films on both sides. The latex foam and the latex films are simultaneously vulcanized to thereby bond the latex films onto the latex foam.

Abstract: An automatic continuously cycleable molding system wherein a plurality of mold sets are transported in predetermined timed cycles through a series of work stations wherein the various molding, curing and workpiece handling operations are accomplished, and wherein the mold sets are recirculatingly moved through the system for repeated usage.

Abstract: A plurality of invert forming mold members are bolted together and have their ends received in internal frames provided at adjacent pipe openings in a manhole. The mold members are formed of relatively thick and heavy polyurethane and are of U-shaped cross-section. A mold supporting plate is provided in each of the internal mounting frames and has an opening configured to matingly receive the endmost mold component. The mold components are provided in a variety of linear lengths, angular curved configurations and elevation changing members so that they can be associated to form inverts required for any particular manhole configuration. The assembly of mold members is extremely strong and rigid and does not require any additional internal bracing.

Abstract: Apparatus for the production by powder metallurgy of a heat exchanger block in which two spaced concentric half shells are provided with holes in which profiled pipes are inserted. The profiled pipes are internally supported by pins when metal powder is injected into the hollow space between the half shells for forming a wall section of a header. The radially outer half shell is formed by a plurality of half rings arranged with their side faces in contact with one another and the half rings are individually removed after the wall section is formed.

Abstract: There is disclosed apparatus for repairing pipes buried underground such as sewer pipes, comprising a cylindrical packing device which is capable of being inflated by compressed air and has pipes for the supply of sealing material, leading to the outside of the packing device between the inflatable end portions. The packing device has a hose extending over its whole length and made of elastic material such as rubber, which is of smaller wall thickness or greater ability to expand in the region of the two ends, which are closed by means of rigid end pieces, than in its central region.

Abstract: The cylindrical side wall of the mold cavity (8) has an inside diameter (D) which is greater than the largest existing ophthalmic lens diameter, and a generally cylindrical membrane (25) of elastomer material is disposed concentrically inside the mold cavity so that in conjunction with the cylindrical side wall of the cavity it defines a variable volume annular chamber (31), the membrane being expansible and retractable radially under the action of a fluid which is alternatively removed from and admitted to the annular chamber.

Abstract: Structure and a method for installation of drain conduit whereby the drain conduit is positioned at a proper elevation with respect to an adjacent surface in a floor or parking lot or the like. The drain conduit is positioned within a trench. Support structure of this invention supports the drain conduit in the trench as concrete or other solidifiable material is poured into the trench to support and to secure the position of the drain conduit. Then after the concrete has partially solidified and is capable of support of the drain conduit, the support structure of this invention is removed and is reused in another installation.

Abstract: A conduit positioning and accessing apparatus, and resulting concrete form structure, comprises a compression type coupling, a flange member rigidly attached to the coupling, a filler element which removably surrounds a portion of the coupling and fastening elements for removably fastening the apparatus to a concrete form, wherein the filler element is formed of polystyrene foam or other easily disfigured material, and wherein an access cavity is defined in the hardened concrete upon removal of the form and filler element.

Abstract: A retainer mold for forming foamed automotive articles, particularly instrument panels, after a thin vinyl skin shell has been mounted in the mold. The mold includes a plurality of die block assemblies mounted in recesses formed in a surface of the mold cavity. Each die block assembly includes a plate member secured in the recess, and a die block slidably mounted within controlled limits on the plate member, and adapted to be covered by the shell and to be moved as required to prevent wrinkling or bridging of the portion of the shell extending between adjacent die blocks.

Abstract: The present invention concerns the manufacture of a support arm equipped with a diamond pickup of the type utilized for a record turntable pickup. The diamond pickup has a cylindrical central body having a plurality of planar facets and an elliptical tapered point.The support arm is injection molded in a mold consisting of an upper and lower die. The upper mold die has a V-shaped notch in which the planar facets of the cylindrical central body is automatically positioned under the thrust of the injected composite material.

Abstract: A metal mold for plastic molding a semiconductor device by a transfer-molding method with the use of thermo-hardening plastics. The mold includes a pot section into which plastic is injected; a cavity section where a product is formed; a runner section constituting a path for the plastic from the pot section to the cavity section; a gate section provided between the runner section and the cavity section so as to reduce the cross-sectional area for the flow of the plastic which flows therethrough from the runner section to the cavity section; and a flow restrictor section provided in the path of the runner section so as to reduce the cross-sectional area of the flow of plastic.

Abstract: The present invention is directed to an apparatus for the production of foam cushions having textile covers by inserting a textile cover into a mold cavity having gates which project into the mold cavity, initially preforming the textile cover by applying a vacuum through holes in the mold cavity such that the textile cover conforms to the contour on both sides of the gates, clamping the textile cover against the gates, further positioning the textile cover such that it conforms to the contours of both the gates and the mold cavity, releasing the clamps and introducing a foam-forming reaction mixture into the mold cavity. The present invention is also directed to a form tool having gates, means for applying a vacuum through holes in the mold cavity in gates and clamping means for clamping the mold cover to the gates.

Abstract: The present invention is directed to an apparatus for the production of foam cushions having a textile cover in which the cover is inserted into a mold cavity and adapted to the contour of the mold cavity by the application of a vacuum wherein movable gates assist in improving the adaptation of the cover to the contour of the mold cavity.

Abstract: A cassette for holding a tissue specimen comprises a body portion (10) and a separable portion (12) which snap together to enclose a specimen (42) in a mould space (54) of the cassette. The specimen (42) is located and oriented in the mould space (54) between a compliant base portion (14) and the separable portion (12). The specimen is processed by the successive application of processing fluids before being embedded in paraffin wax. The specimen is held in its oriented position on the cassette during processing and embedding, there being no handling or re-positioning of the specimen between processing and embedding. During embedding, molten wax is supplied to a container (56) in which the cassette is placed. Wax surrounds and embeds the specimen, the container base is then cooled to solidify a base layer of wax, allowing the remaining wax to be drained from the container, leaving the wax within the cassette to solidify and cool.

Abstract: A method of producing a structural element comprising a metallic sleeve provided with a continuous axial slot at a circumferential area and an outer surface completely surrounded by a jacket comprising making a metallic sleeve (3,18) with an inner diameter corresponding to a maximum of the inner diameter of the finished structural element (1,16) surrounding the sleeve with the jacket (4,17) in an apparatus (5) provided with a core (8) for receiving the metallic sleeve (3,18) and elastically widening the metallic sleeve (3,18) when placed on the core (8) whereby the slot (2,19) of the metallic sleeve (3,18) is at least partially filled with the material of the jacket (4,17) during formation of the jacket (4,17) so that the boundary surfaces of the slot (2,19) of the metallic sleeve (3,18) is at least partially covered, and the structural element produced thereby.

Abstract: Methods of manufacturing a modular, monolithic, integrated, multi-layered, mold building structure including the steps of constructing a dismantleable mold having an outer rigid matrix and an inner inflatable plug, wherein the inside dimensions of the matrix correspond to the outside dimensions of the structure and the outside dimensions of the plug correspond to the inside dimensions of the structure, placing high strength fibers between the plug and the matrix, injecting hardenable material between the matrix and the plug, curing the hardenable material into a hard shell, removing the matrix, deflating the plug, and installing walls, doors or windows. The structures may be joined together on-site in various combinations and configurations to create different types and styles of buildings.

Abstract: A forming die for forming a vehicle seat foam cushion member integrally on its surface with a pile-type fastener adapted to be engageable with a mating pile-type fastener provided on the back surface of a top cover member associated with the seat. In the forming die, there is formed a recessed groove, in which resiliently and frictionally secured is a base plate with an engageable member fixed thereto. The engageable member is capable of removable engagement with the pile-type fastener which is to be integrally provided on the cushion member.

Abstract: A window assembly includes a windshield and a gasket formed by curing a polymeric gasket material in situ on the windshield to encapsulate a marginal peripheral edge thereof and form an integral leaf screen and mounting tab. The gasket is formed in a mold with the windshield typically by a reaction injection molding process. The gasket-forming cavities in the mold can be separated by removable plugs and be connected to multiple inlet means for separately filling the cavities. The gasket, leaf screen and mounting tab can be formed of one material, or the leaf screen and tab can be formed of a different material than the gasket.

Abstract: A steel cap is mounted on a shoe molding last during molding, particularly during the initial molding of a plastic shoe. The steel cap furthermore is supported on the shoe molding last by a plurality of projecting members distributed over the surface of the steel cap extending from it or the shoe molding last. At least one releasable holding or retaining means is provided on the shoe molding last which holds the steel cap on the shoe molding last secure against unintended release. To obtain a nearly flawless jacket or sheath of synthetic resin about the steel cap the holding or retaining means comprises at least one slender elastic pin directed transverse to the insertion direction of the steel cap. The steel cap has at least one of the elastic pins engaging against a roughened interior surface of the steel cap and the pin locks in the roughened surface of the steel cap under compression.

Abstract: A shatterproof windshield repair device comprising a housing and a diaphragm. Under vacuum, air passages between the diaphragm and the glass surface form part of a first enclosure which can be evacuated and thus the device is held in place around conical cracks in the windshield. The vacuum in the first enclosure can be maintained by an assembly with a sealing capability. Surrounded by this first enclosure is a second enclosure which directly encircles the immediate area containing the conical cracks in the shatterproof windshield. A separate sealing lip, being part of the diaphragm, encircles this immediate area on the windshield and completely isolates the second enclosure from the first enclosure. In the center of the device is a cylindrical passage that axially extends from the exterior of the housing into the second enclosure. A piston assembly can move in and out of the cylindrical passage to introduce the repair liquid into the conical cracks in the shatterproof windshield.

Abstract: An injection molding apparatus is used to line flanged pipe elbows. The pipe elbow is clamped by the flanges to two pivotted platens, one of which has a curved mandrel to shape the inside of the elbow lining.

Abstract: An apparatus and process for molding the edges of a board-shaped blank with plastic material. A one-piece mold is provided made of a material with rubber-like elasticity and having a C-shaped cross section. Two free legs of the mold receive between themselves the edges of the blank and rest against the blank from the top and bottom. The mold is surrounded by a divided mold box, having upper and lower parts supporting the mold on all sides and being compressible perpendicularly to the plane of the blank. Upon compression, free legs of the mold are forced against the blank. In the mold box, spacing elements are arranged on top of and beneath the blank to limit the distance of movement of the parts of the mold box and the compression of the mold.

Abstract: A unique dynamic seal assembly is used in a mold structure for encapsulating a glass window assembly with a gasket. The seal assembly resiliently supports the window assembly and cooperates with the mold structure for defining a gasket forming cavity. The mold structure typically includes two cooperating mold sections, each of which can be provided with a groove for receiving a separate dynamic seal assembly. Each seal assembly includes a sealing body having a sealing surface which faces and is adapted to sealingly contact the window assembly. The seal assembly also includes a first fluid filled bladder positioned between the sealing body and a bottom of the groove in the mold section. When increased pressure is applied to a local area of the seal as a result of a contour difference between the seal and the window assembly, the bladder deforms to automatically transfer at least a portion of the applied pressure to adjacent areas of the seal.

Abstract: A method and apparatus are disclosed for producing a powder metal part having a plurality of cavities. The method involves introducing a metal powder and an apparatus into a mold, the apparatus being made of a plurality of solid pieces which are in the shape of the cavities to be formed. The pieces are joined together by joining means and are positioned relative to each other by adjusting means so that the cavities formed therefrom are equally spaced about the center of the part. The apparatus is then removed from the mold, and the powder is then isostatically pressed in the mold to produce a green part which is then sintered to form the final part having the cavities.

Abstract: A method of and a casting bed for producing a concrete product, especially an endless concrete blank prestressed in at least two directions. In order to enable a prestressing wire to be arranged in position and tightened in a simpler manner, at least one prestressing wire is passed in a zigzag-like manner crosswise between at least two fixed sides of a casting bed to form a wire net and the wire net is tightened from a third side of the casting bed in the direction of both first-mentioned sides so that the wire net is stretched in two directions by means of a traction in one direction. Finally, concrete is fed on the bed to form a prestressed concrete blank. An apparatus intended for carrying out the method comprises a weaving device for stretching the prestressing wires continuously and in a zigzag-like manner crosswise between two parallel sides of the casting bed and for tightening of the wires in the longitudinal direction of the casting bed.

Abstract: A multi-story concrete building is constructed concurrently, that is, the steps for constructing the same are carried out simultaneously on different respective stories. To achieve this end, vertical formwork members for forming the columns and bearing walls for one story are erected. Then decking formwork is erected for forming a concrete slab to serve as the floor for the next story thereabove. Formwork spacers are affixed to the tops of the vertical formwork members and these spacers provide mounts, extending through the thickness of the slab to be formed, for mounting the vertical formwork members for the next story. The vertical formwork members for the next story are then erected. Fresh concrete is poured into at least the vertical fromwork members and is permitted to cure and solidify into the vertical support members for that story. Other formwork members are erected above the next story while concrete is concurrently poured and formwork is stripped on different respective stories.

Abstract: Panels having an integral coat of a cross-linked polymer matrix are formed in the cavity of a closed mold consisting of a lid and a tray; the preformed core of the panel is supported but by the lid and an essentially continuous free space corresponding with the coat to be formed around the core is maintained between the latter and the mold cavity; an essentially prismatic space or chamber is provided at a rim juncture of tray and lid adjacent to, yet outside of, the mold cavity of the closed mold; an elongated slit-shaped opening extending over at least half the length of one side of the mold cavity is formed at an end of the prismatic space; the inlet opening ends in the prismatic space and an essentially laminar flow is achieved throughout the mold cavity when a liquid resin composition that has a viscosity of less than 10 Pascal.

Abstract: Molds for making composite bodies having at least three sections which are united along generally aligned intersections wherein the molds include two slideable molding blocks having molding cavities therein which are movably oriented with respect to a stationary molding cavity and wherein separate injectors are utilized to fill each of the cavities depending upon the positioning of such cavities.

Abstract: An apparatus for molding three concentric plastic materials into a composite body in which the mold includes a pair of molding blocks having reduced ends which define an inner cylindrical cavity into which a first material may be injected, a pair of tubular molding sleeves surrounding the molding blocks and axially movable relative thereto which define an intermediate cavity therebetween into which a second material may be selectively injected to form a second intermediate concentric portion of a composite body and a fixed molding cavity with which the inner and intermediate molding cavities are selectively aligned so that a third material may be selectively injected to form an outer concentric portion of the composite body.

Abstract: A flexible link belt is made by injection molding link portions into and through a flexible carrier webbing, whereby the link portions are also bonded to each other through holes in the webbing. The injection mold used for making the links has two mold sections each with a cavity portion corresponding to the respective link portion. The carrier webbing is held in place between the two mold sections. An injection nozzle reaches into one mold portion and a movable core reaches into the other mold portion preferably in such a position that the injection nozzle and the movable core face each other across the flexible webbing. The core distributes the injected plastics material into both mold portions and so that the plastics material must move primarily through the holes or interstices in the webbing.

Abstract: A mold for retaining a sealing material within a passageway of a building partition. The mold consists of an annular ring member integrally coaxially connected to one end of a cylindrical sleeve member. The annular ring member is of greater transverse dimension than said sleeve member. Said mold may be constructed to appear as an inverted top hat. The cylindrical sleeve member may be provided with a longitudinal slit means for opening up said sleeve member and connecting it to a building tubular member such as a pipe to fit as a jacket thereon. In use the sleeve member is connected onto a building tubular member and may be fastened thereon, and the planar surface of said annular ring member is associated in facial planar relation with a building partition. Thereafter sealing material is placed in the area between said tubular member and said aperture wherein the planar surface of said annular ring member acts as a dam until setting of the sealant occurs.

Abstract: The invention relates to the tooling for claw cages for ball bearings comprising a mold proper and an impression unit adapted to be placed inside said mold, said impression unit comprising a crown and a plurality of balls limiting a mold cavity defining a bridge, recesses and claws of such a cage. Said impression unit is produced in several parts adapted to be made fast to one another, shaped to provide a multiplicity of recesses each having substantially the shape of a portion of a spherical cap, so that when said parts are assembled said recesses provide a multiplicity of substantially spherical housings in each of which a ball is received held in a pre-established position determining with accuracy a hollow and claws of said mold cavity. The invention is useful for the manufacture of ball bearings.

Abstract: An injection mold is described for producing the housings of integrated circuits. The injection mold icludes a first mold half (30) in which are disposed a number of mold recesses (46) corresponding to the number of housings to be made simultaneously, having a depth corresponding to a portion of the height of the housings, and supply passages (48, 50, 52, 54, 56, 58) leading to the mold recesses (46). In a second mold half (32) which is adapted to be brought in the closure direction into engagement with the first mold half (30) a number of mold recesses (76) equal to the number in the first mold half (30) are disposed in corresponding arrangement, the depth thereof being equal to the remaining portion of the height of the housings to be made. The mold recesses (46) in one of the mold halves (32) are disposed groupwise in mold portions (64) which are held in the one mold half (32) displaceably in the closure and opening direction.

Abstract: In order for a coil winding head, preferably to be reinforced by the baked-lacquer process, to be compression-molded with no need for preliminary pre-positioning by tape-wrapping and with no damage to the winding wires, a form shell apparatus is provided with a form core, which radially confines the coil end forms shape on the inside, with a radially advanced confining form shell divided into at least two parts in the circumferential direction. This multi-part shell radially confines the coil end turns on the outside. A compression form shell axially advanceable against the coil end turns confines the coil end turns in an axial direction. It has, on its inner and outer circumferential surfaces, integrally molded guide fingers, which extend axially in the direction of the coil end turns to be shaped. Corresponding guide grooves are molded into the form core and the confining form shell, into which guide grooves the guide fingers extend.

Abstract: Apparatus for forming inverts in a manhole base using a single pour or double pour technique. In the single pour technique, the invert is formed simultaneously with the formation of the manhole base using a mold member having a channel-shaped projection defining the invert. Alignment members simply, and precisely, align the mold member having the channel-shaped projection with the members forming the base member sidewall openings to form a manhole base having an invert in precise alignment with associated sidewall openings. In the two pour technique, the manhole base is initially formed. Thereafter, channel invert forms are aligned with sidewall openings by alignment members arranged within the manhole openings to assure precise alignment therebetween, wherein the invert formed within the manhole base by pouring the casting material into the base member forms an invert which is in precise alignment with associated sidewall openings.

Abstract: Apparatus for making lined concrete pipe in a reduced time, and provision of such pipe with reduced tendencies to rusting and liner separation, are achieved by a cartridge assembly movable to and away from the pipe machine, a work stand assembly for positioning the cartridge to receive a liner, liner tensioning structures and liner to cartridge clamps for moving the liner to the cartridge, tightening the liner, and holding the liner during transport by the cartridge, and tension bars controlling wire tension during pipe formation. Concurrently with operation of the standard pipe machine, the work stand operates to place a liner on the cartridge. During the stripping cycle of the pipe machine, the cartridge delivers the liner to the core. During the pipe machine vibration under pressure cycle, the tension on the liner tension wires is relieved.

Abstract: There is disclosed a mold assembly for casting a concrete wall having an opening and for anchoring a flexible resilient ring-like gasket in the peripheral wall of said opening to make a seal with a pipe passing through the opening. The assembly includes a pair of spaced mold walls for receiving unset concrete therebetween, a flexible resilient annular mold arranged to extend between the mold walls with its end surfaces in respective sealing contact with the inner surfaces of the mold walls and a rigid mold-supporting member removably inserted within the annular mold to support the latter while concrete is cast about the annular mold and between the mold walls. The outer surface of the annular mold has a continuous annular groove, intermediate the end surfaces, to receive the pipe-engaging portion of the gasket. Once the concrete is set, the outer anchoring portion of the gasket is embedded in the concrete.

Abstract: A flexible grid or lattice molding form having a release-layer covered adhesive on one major side surface and a peelable layer on the opposite major side surface. The grid or lattice can be adhered to a preformed wall or flow by the adhesive layer and a cement mixture sprayed on troweled thereover. The upper peelable surface then can be stripped off removing any molding material covering the peelable layer.

Abstract: The process provides for depositing, on a non-adhesive support, a thread of a fluid material for gasket manufacture from a nozzle that is displaced above the support along a path coinciding with the gasket layout, with subsequent curing of the fluid material. According to the invention, a stiff, wirelike reinforcement is placed on the support before deposition, the reinforcement corresponding in shape to the outline of the gasket that is to be manufactured, and having an adhesive surface with respect to the fluid material of the gasket, so that the subsequently deposited thread of fluid material incorporates the reinforcement and becomes bonded to it. The invention also relates to the product obtained by the process.

Abstract: A reusable form for manufacturing curb inlet drains in situ includes a central tapered key section to which drain forming elements are detachably secured. A lid section is also attached to the key section. The drain forming elements each have a generally horizontal shelf with an upwardly projecting curved neck flange segment. These segments form a circular neck which abuts the underside of the lid section when the form is assembled. The front drain forming elements define a mouth for the curb inlet drain. Except for the mouth, the sides of the form are closed by plates extending downwardly from the shelves. Following the formation of a curb inlet drain, the lid section is removed. In addition, the drain forming elements are detached and the key section is removed upwardly through a manhole opening of the curb inlet drain. Then, the drain forming elements are also removed upwardly through the manhole opening.

Abstract: An article in rod, tube, strip, sheet or plate shape with reversible thermomechanical properties is produced by joining of at least two parts consisting of a total of at least one shape memory alloy having a two-way effect, whereby each part has a memory effect by itself. In the case of at least two shape memory alloys (1, 2) with different transition temperatures but the same mode of movement, the joining of the individual parts can take place prior to the deformation in the low temperature range necessary to inducing the two-way effect. In the case of differing types and degrees of movement of the individual parts (25, 26), their joining can first be accomplished only after the individual deformations of each part for itself in the low temperature range are accomplished regardless of how many shape memory alloys with different transition temperatures are used in the structure of the article.