Abstract: In an anvil powder compacting press, wherein the anvil, mounted on a work station positioner arcuately or longitudinally movable over a die plate in which is disposed a die cavity in which powder material is compacted between the face of a punch reciprocably disposed in the die cavity and the face of the anvil, is coarsely positioned over the die cavity by the work station positioner, an anvil indexing and locating mechanism for finely locating the anvil over the die cavity prior to compacting an article. The anvil fine indexing and locating mechanism is in the form of a plunger disposed in the anvil normally retracted and caused to project into a bore in the die plate. The locating plunger or pin is mechanically operated by the clamp clamping the anvil in position over the die cavity, or operated independently from the clamp.

Abstract: A combined soap holder and press is disclosed herein for use in saving soap pieces by reforming remnants with a new soap bar of usable size which includes a base dish for holding a soap bar and a lid hingably carried on one end of the dish adapted to cover the soap bar and soap remnants. A cam, pivotally carried on the other end of the dish, operates on the exterior of the lid to compress the soap contents of the dish. Drainage apertures are provided in the lid and the dish and one end of the dish includes an outwardly projecting or cantilevered arm for supporting the lid on a soap holder when used as a press. The lid includes a parting bar movably carried thereon for breaking soap away after a pressing procedure.

Abstract: A multiple press having a plurality of molds for forming ceramic moldings. The press includes a base frame on which a movable mounting plate is mounted. The movable mounting plate carries a plurality of mold halves. The base frame also includes a fixed mounting plate having a plurality of cylindrical bores in which a plurality of punch carriers are slidably mounted. Each punch carrier holds a mold half which mates with the confronting mold half on the movable mounting plate. The cylindrical bores being in communication with a source of a pressure medium so that a "pressure pad" is formed behind each punch carrier during the molding process.

Abstract: A two piece contact lens mold having a pair of blunt, continuous mating surfaces extending around the periphery of the mold cavity is disclosed. Location of the mold parting line tangent to the lens edge substantially eliminates registration problems when a relief groove is provided at the edge of the female member. Parameters for mold materials and important dimensions are also disclosed. The mold can produce finished contact lenses which do not require further machining.

Abstract: A press mold half for producing records comprises a mould half having a psing surface thereon, and a channel system beneath the surface for conducting heating and cooling fluids in indirect heat transfer relationship with the surface. The channel system includes spaced apart inflow and outflow fluid collecting chambers, and a number of channels extending over given paths between the chambers, the overall cross section of the channels in regions adjacent the outflow collecting chamber is less than the smallest overall cross section of the channels over the remainder of their paths, thereby resulting in uniform heating and cooling of the material being pressed.

Abstract: A two piece contact lens mold having a pair of blunt, continuous mating surfaces extending around the periphery of the mold cavity is disclosed. Parameters for mold materials and important dimensions are also disclosed. The mold can produce finished contact lenses which do not require further machining.

Abstract: A mold for forming concrete articles comprises a face mold and a compression lid which are relatively configured so that the compression lid can be progressively inserted within the face mold to define a mold cavity which decreases in size. The mating edges of the face mold and compresssion lid define a relief area between them adjacent to, and communicating with the cavity. Each mating edge has a flange, and the flanges abut and prevent further insertion of the compression lid into the face mold when the proper size of the article being formed is attained. The mating edges further have corrugations defining a plurality of channels which extend between the relief area and the exterior of the mold. Excess water from concrete mixture being compressed between the face mold and compression lid can flow from the cavity, through the relief area, through the channels, and out of the mold.

Abstract: A machine for making a dry cast concrete pipe. The machine has a cross head carrying a rotatable shaft extended downwardly into a core supported on a turntable. An outer form mounted on the turntable surrounds the core. A head attached to the lower end of the shaft is engageable with the core to raise the core out of the outer form in response to upward movement of the cross head. Arms secured to the shaft above the core rotate with the shaft to move concrete from the top of the core into the annular chamber between the core and outer form. An annular press ring mounted on a top table is moved into the top area of the annular chamber to compact concrete before the core is withdrawn from the outer form.

Abstract: Apparatus for and method of forming ophthalmic lenses and/or semi-finished lens blanks including those of the eye contact type. The apparatus includes molds having cooperating first and second members each of which includes a longitudinal axis and a mold surface which is symmetrical with respect to such axis. In one embodiment these mold members or halves also include cooperating surfaces which, in operation and in cooperation with the selected lens material, both align the respective mold axes and axially position the mold surface of the first member with respect to the mold surface of the second member to thereby form the desired lens mold cavity. Further, each of the assembled molds also includes an annular reservoir which surrounds the mold cavity and is defined by surfaces provided on the first and second mold members. This reservoir is connected to the mold cavity via an annular restriction.

Abstract: An apparatus for compacting powder material into a mold cavity formed at least between an upper and a lower reciprocally movable punch. The lower punch reciprocates in the center bore of a die and has an end face defining a portion of the mold cavity. The upper punch is reciprocable so as to be placed over the die bore and has an end face defining another portion of the mold cavity. The upper punch end face is coated with, or made of, an elastomeric material. The upper face of the lower punch may be flat or contoured. The compaction of the powder material in the mold cavity is accomplished by the upward movement of the lower punch which forces the powder material to conform to the configuration of the mold cavity. After compaction, the upper punch is withdrawn and the compacted product is ejected.

Abstract: A press apparatus for compacting powder material into generally spherical articles by way of a tooling arrangement comprising a die having a bore, a punch having an upper face defining a generally hemispherical cavity reciprocably movable along the axis of the die bore and a counterpunch positionable over the opening of the die bore. The lower face of the counterpunch defines a generally hemispherical cavity of the same diameter as the generally hemispherical cavity defined by the face of the punch. The generally hemispherical cavities are in alignment with each other and define a spherical mold cavity. During the compacting step, the counterpunch is positioned with its lower face abutting the upper surface of the die plate and compaction of the powder material is achieved entirely by movement of the punch in an upward direction.

Abstract: An apparatus for compressing powder material into at least partially spherical articles, comprising a die and upper and lower reciprocally movable punches. The die has a center bore through which the lower punch is reciprocable. The wall at the upper part of the die bore is enlarged to form a spherical zone portion of a hemispherical cavity. The end face of the lower punch has a concave shape to form a segment of the hemispherical cavity when the face of the lower punch is flush with the die cavity wall. The lower face of the upper punch defines a hemispherical cavity which mates with the hemispherical cavity of the die. In operation, the bore and die cavity are charged with powder material and the upper punch is brought into engagement with the die. A compaction stroke by the lower punch then forces the powder material into the spherical cavity. The upper punch is then withdrawn and the compacted spherical article is removed from the die.

Abstract: A light weight portable device that may be utilized to save soap by subjecting the remnants of bars of soap to compression to reform the remnants into a solid bar of desired configuration, and surplus water associated with the remnants being discharged from the device during the reforming operation. After the remnants have been reformed into a solid bar, the bar may be ejected from the device by a simple manual operation. The device is particularly adapted to being formed in its entirety from a polymerized resin such as polyethylene, polypropyline or the like by conventional molding techniques.

Abstract: A process of forming molded bodies is provided in which precisely formed surfaces thereof have a precise interval therebetween. Such bodies are formed in a mold in which a first set of forming dies engage an interposed plastic mass of glass or the like, whereafter at least one auxiliary forming die enters the mold to engage and form the yet plastic mass. The first set of forming dies define critical surfaces and have a fixed interval therebetween following engagement with the plastic mass. The auxiliary die defines a non-critical surface on the body to be formed in the mold and enters the mold a distance determined by the mass of the plastic body.In a modified process of manufacture, the mold has an offset portion and is movable relative to the first forming dies whereby the mold cavity in which the plastic mass is disposed is reduced in volume and the desired body is formed having critical surfaces formed by the first forming dies.

Abstract: A casting machine for making concrete slabs having a mold swingable about a horizontal axis and a vibrator swingable in a horizontal plane adjustable in height about a vertical axis from an inactive position at the side of the machine and into a working position above the mold. The vibrator is provided with a pressure plate for vibrating, compacting and glazing the surface of the concrete inside the mold, the bottom of which can be adjusted in vertical direction for producing slabs having different thicknesses. Further, the bottom is slidable from a filling position to a stripping position when the mold is turned 180.degree. about a horizontal axis.

Abstract: An apparatus for at least partially forming a brassiere having a pair of male molds provided with substantially conical outer surfaces, which molds are movably supported on a first support device so that the spacing between the molds can be selectively varied. A die assembly is spaced opposite the molds and has a pair of circular openings extending therethrough, which openings are aligned with the molds. Clamping devices are provided for supporting a sheet of flexible material adjacent the die assembly so that the material extends across the openings. A driving device, such as a pressure cylinder, causes relative reciprocating movement between the die assembly and the molds, as by being connected to the molds, so that the molds are linearly advanced toward the die assembly so that the molds project through the openings in the die assembly and deform the material into a pair of cups. Heating means are associated with the apparatus for causing heating of the deformed material.

Abstract: A concrete press has an upper movable platen and a lower fixed platen. Hydraulic cylinders are interposed between the upper platen and frames of the press which extend horizontally over this platen. A mold shaped as a concrete building panel is filled with high water-to-cement ratio concrete and is introduced between the platens for pressing. The mold has collapsible interleaving sides. Lateral hydrostatic pressure on the short ends of the molds is resisted with hydraulic rams. Hydrostatic pressure against the long sides of the molds is resisted by hydraulically positioned wedges which are interposed between the mold sides and the frames which contain the platens and cylinders. Means which are responsive to the cylinder positions are provided for maintaining all parts of the movable platen level during the compacting process. The mold sections are prevented from collapsing inadvertently with magnet means.

Abstract: An apparatus for molding a particle board product manufactured from the wood waste of sawmills, such waste preferably comprising cedar or redwood bark, sawdust and shavings. The product may also be made from certain non-wood fibrous vegetable materials, such as bagasse. The particle board is prepared by mixing dried sawmill waste or other fibrous material of substantially uniform particle size with phenolic resin and wax in predetermined proportions, and placing a measured amount of the resultant mixture in an elongate mold where it is bonded together under the influence of heat and pressure. The mold includes a moveable pressure plate forming the top of an enclosure within which the material is compressed to a predetermined thickness by pressure applied to the exterior of the plate. The thickness of the cmpressed mixture is substantial, so as to enable continuous solid pieces of the processed material later to be cut to standard dimension lumber sizes.

Abstract: A molding device for producing compressed material such as meat patties and the like. The device is capable of forming meat patties of uniform size and shape and provides for easy removal of the formed meat patty.