Abstract: The present invention presents a novel method for injection molding a header to the open-ended tubes of an elastomeric solar collector. Special mold pieces and mandrels are required to carry out the invention.

Abstract: A mold having an integral piece for casting a hygienic-sanitary appliance is disclosed. The mold includes a lower mold piece, at least two lateral mold pieces which are mounted on the lower mold piece to define a molding cavity for an article to be cast. An upper mold piece is mounted in position on the lateral mold pieces to close the mold cavity; the lateral and upper mold pieces being separable from the lower mold piece and the cast article to leave the latter resting on the lower mold piece. Below the cavity of the mold there is provided an annular or partially annular shaped base to support the cast article.

Abstract: A cover member for a safety air-cushion device is made up of a bag-shaped outer laminate of high density polyurethane foam, and a bag-shaped inner laminate of low density polyurethane foam which is integral with the outer laminate, the inner laminate being made by pouring the fluidized foamable material into a mold after solidification of the other fluidized foamable material having been poured into the mold for the formation of the outer laminate.

Abstract: A deflector for use on an automatic molding machine deflects incoming sand downwardly onto the drag table and then upwardly into deep recesses in the pattern. The sand deflector is formed as a rectangular prism from a single block of metal, and has two deflecting channels separated by a strengthening septum. The channels are arranged at a predetermined angle in relation to the mounting surface of the deflector.

Abstract: A mold bed having a number of longitudinal mold cavities is surrounded by a reinforcement structure which permits the mold bed to be handled as a unitary product. Mold cavities have removable end walls, one at each of opposite ends, to promote releaseability of the product from the mold cavities once they are removed. The mold cavity has a trunnion, one at each of opposite ends of the mold body so that the mold body can be rotated from an upright position when it receives the concrete in the mold cavity to an upside down position whereby the products are removed of their own weight. Two transverse spaced channel straps extend across the open face of the cavity so that when the mold bed is turned upside down, the molded parts are held temporarily by the mold straps, which are then released by unbolting their connections with the mold bed. A fork-lift truck removes the molded parts ater the mold straps are removed.

Abstract: A device for cooking bread articles such as buns, wherein the bun has a cavity formed therein. The buns are cooked about a die having one member which forms a cavity in the interior of the bun and a second member which forms a slot in the bun providing access to the cavity.

Abstract: An improved method for fabricating a ceramic sparger plate for use in the degassing of molten metal is disclosed in which a castable ceramic is poured into a mold which contains an array of vertically disposed strands which are removed subsequent to the ceramic curing and prior to firing of the ceramic thus leaving the desired pattern of holes through which the fluxing gas is introduced into the molten metal.

Abstract: The present invention is directed to a hub for use in a tape casette for winding a recording tape around the periphery of the cylindrical surface. The hub includes a drive shaft inserting hole at the center portion thereof; a notch for fastening the end of the recording tape in association with a tape securing member on the peripheral cylindrical surface; a first and a second surface opposed to each other, each surface having an inner annular surface and an outer annular surface; and a resin injection gate surrounded by a concave recess located in the outer annular surface of the first surface. In addition, the present invention includes a recess formed on the outer annular surface of the second surface at a position opposite to the resin injection gate, the bottom face of the recess being substantially parallel to the outer annular surface of the second surface.

Abstract: A mold for forming shotgun targets out of ice has a plurality of concave depressions in an upper section in the mold and mating frustrum shaped depressions in a lower section of the mold. The mold sections are hinged together along a center line of the mold and the mold sections can be held in a closed position using barbed studs engaging stud holding apertures in the opposite sides of the mold. The molds can be stacked together using female ferrules attached to one external side of the mold and engaging male ferrules to opposite sides of the adjacent mold.

Abstract: An apparatus for the production of plastic cages for radial roller bearings wherein the two end rings of the cage are joined by a plurality of crossbars distributed over their circumference comprising an injection-molding die with a cylindrical core corresponding to the inner diameter of the cage and an outer die element having radially moveable slides, the said injection-molding die being provided with recesses for the simultaneous production of at least two cages.

Abstract: This invention relates to the making of negatives intended for the production of bodies which contain cavities of predetermined shapes.The term "negative" signifies a disposable core member, for example as used in some molding techniques such as the lost wax process. The negative at least partly matches the cavities which latter form two independent systems of regularly distributed intersecting channels with the channels in any one same system intercommunicating via ducts which are themselves regularly distributed.

Abstract: A mold box and mold head that are interfitted together to mold concrete blocks. The mold box has two sides and two ends forming a continuous flange around it and two laterally spaced partitions equally spaced between the two ends, one partition being in the form of a straight bar, and the other, in the form of three spaced boss members. Upwardly-extending bosses that are generally plate-like are fixed to rods which extend across laterally, parallel to the ends. The head is made up of a plate-like member having spaced plate-like members attached to it. The spaced plate-like members cooperate with the partitions in the mold box to form a concrete block therein. The resulting block is tongued on one side and grooved on the other and the top is tongued and the bottom grooved for interlocking purposes. The interior section contains three rows of cells providing greater insulation and saving of material.

Abstract: A substantially square hamburger roll having one face indented to form a rim around the perimeter and a bakepan to form the same, said bakepan having square cavities extending inward from one face and a square re-entrant projection extending centrally upward into each cavity a distance less than the depth of the cavities to form a peripheral gutter in each cavity to form the rims around the rolls baked in said bakepan.