Abstract: The present invention relates to a method and system for producing concrete products by casting method by means of casting moulds assembled from corresponding outer and inner moulds, having a program-controlled, automated circulation system having a hardening area 420, a program-controlled, automated manufacturing area 100 and a conveying unit 200. The system also has a manually operable mould assembly unit having mould assembly stations M1 to M4 for manually assisted assembly of a casting mould from corresponding outer and inner moulds, wherein the conveying unit comprises a supply conveying section 222 set up to supply a casting mould assembled in the manually operable mould assembly unit to the automated circulation system under program control.

Abstract: Systems, methods, and articles of manufacture provide for a mold system for molding structures (e.g., sand castles) from one or more various types of molding substances (e.g., sand, clay, snow). In one embodiment, a mold system comprises a split mold comprising at least two mold sections. In one embodiment, a modular mold system allows for different types of mold sections with corresponding joining elements to be joined together to create forms for molding various types of structures. In some embodiments, mold sections are configured to facilitate the breaking of a vacuum created when molding substances are packed into the mold system, thus making it easier to separate a mold from the formed structure.

Abstract: Systems, methods, and articles of manufacture provide for a mold system for molding structures (e.g., sand castles) from one or more various types of molding substances (e.g., sand, clay, snow). In one embodiment, a mold system comprises a split mold comprising at least two mold sections. In one embodiment, a modular mold system allows for different types of mold sections with corresponding joining elements to be joined together to create forms for molding various types of structures. In some embodiments, mold sections are configured to facilitate the breaking of a vacuum created when molding substances are packed into the mold system, thus making it easier to separate a mold from the formed structure.

Abstract: The invention relates to a mold for producing three-dimensional items, consisting of at least two mutually attachable pieces, and within which pieces the volume of the item to be produced is delimited. In said mold, owing to the mutually supporting surfaces, said pieces have formations delimiting airtight chambers between consecutively attached pieces. At least one of the pieces used to form part of each airtight chamber has a pneumatic valve through which said chambers are connected to a vacuum source, by means of which a sufficient negative pressure is created in the chambers to fix to one another the pieces delimiting such chambers. The walls of the pieces are non-deformable as a result of the negative pressure created within the chambers.

Abstract: This disclosure describes a shelving unit including a plurality of panels. The plurality of panels each includes a first edge; a second edge opposite the first edge; and a plurality of slots located at the first edge. One or more of the plurality of slots becomes narrower as the plurality of slots extends from the first edge to a center of the plurality of panels. The narrowing of the plurality of slots pinches an adjoining panel when assembled together to provide a secure joint.

Abstract: A cooking vessel includes an upper element that defines a cook surface and a lower shell that defines a heat surface for contact with a heat source during heating. The upper element and the lower shell are joined together such that the cook surface and the heat surface are retained in a fixed spatial relationship with each other and a gas-filled cavity is defined between the heat surface of the lower shell and the cook surface of the upper element. An optional temperature sensor may be placed in contact with the gas for cooking temperature readout. Heat is transferred from the heat surface to the cook surface through the gas contained in the gas-filled cavity. Improved heat distribution is accomplished by static and dynamic means of enhancing gas convection. This promotes efficient and even heat distribution at low weight.

Abstract: In a process for producing half-shells (2) which are made from a dough for bakery products and are characterized by an annular orifice rim (6) with a finished surface, by producing a wafer sheet (1) comprising a plurality of half-shells (2) connected to one another by an interconnecting wall (4), by forming and baking said dough in a mold with the use of a mold formed by two complementary plates (12, 14) having respective front surfaces which, as a result of the fitting together of the two plates, can define a forming cavity having a shape generally corresponding to that of said wafer sheet (1), a mold is used wherein the front forming surface of at least one of said plates has shaped portions (26) which project towards the front surface of the other plate (12) and which can define, in the dough that is subjected to baking in the forming cavity, a notch (24) in the interconnecting wall (4) adjacent each half-shell (2), wherein the plates can be fitted together in an initial position in which the forming cavit

Abstract: A three-dimensional baking mould (1) for producing baked goods, has a first negative mould part (2) and a second negative mould part (3), which form the baking mould (1) when fastened to each other. The two mould parts (2, 3) form a cavity (4), into which dough can be introduced through a receiving opening (5), which is partially formed by each of the two mould parts (2, 3). The first mould part (2) can be fastened to the second mould part (3) by at least one fastening element (6), preferably by means of two fastening elements (6), consisting of silicone.

Abstract: A system and method for producing a comestible baked product in complex shapes using cast molding. Embodiments generally include a first part and a second part, the first part being made up of at least two or more component pieces, then, the first part is detachably coupled to the second part creating an outer surface and an inner surface which create a contiguous internal hollow space that extends from the first piece to the second piece in the form of a three dimensional shape, and a means for supporting the unitary mold in a special and beneficial baking orientation.

Abstract: Concrete forming panels according to the present invention are formed using a series of interlocking panel sections mechanically connected at a forward face of the panel. The mechanical connection uses a hook portion of one section received in a slot portion of an adjacent section with a pivot and stop relation defining the planar forming face. A series of brace members extend across the panel sections on a rear surface and maintain engagement of the panel sections and reinforce the panel sections against deformation of the forming face during use of the panel. The arrangement is economical to manufacture in many different sizes as may be required by a customer. Some welding is used, however the mechanical connection greatly reduces the amount of welding required. Replacement sections can easily be used to repair damaged panels.

Abstract: The present invention relates to an adjustable slump mold for molding a clay slab into a ceramic object. The mold includes a plurality of elongate members. The mold also includes a plurality of connectors connected to and extending from first ends of the elongate members, respectively. Each connector is shaped to slidably receive an adjacent one of the elongate members. The elongate members are thereby slidably connected together via the connectors. The elongate members so connected together form an adjustable mold shape.

Abstract: A form for creating a pattern in uncured concrete during a vertical column casting process includes an end wall and at least one side wall, extending from an edge of the end wall with the side wall and end wall cooperatively defining a corner therebetween. A pliable liner is attached to the end wall and the side wall and operably joins the side wall to the edge of the end wall to define a mold cavity. At least one patterned surface is formed on or in the pliable liner and is operable to form a corresponding pattern into concrete disposed in an uncured form in the old cavity. A notch is formed in the pliable liner and extends along the corner and forms a pivotable joint between the end wall and the side wall to facilitate removal of the form device from about the concrete after the concrete has at least partially cured.

Abstract: One possible embodiment of the invention could be a system for creating forms used to make concrete structures comprising of plurality of panels, each panel having two or more sets of spaced-apart tie apertures; a plurality of ties, each tie forming a body between two ends, each end having a locking aperture, a plurality of L-shaped brackets with two flanges having a respective set of spaced-apart perforations; a plurality of locking mechanisms that attach to ties and connect L-shaped brackets together; wherein two or more ties are located between a pair of parallel and opposing panels, the ends of the ties protruding through respective tie apertures and perforations of L-shaped brackets located on the outside of the panels, the locking mechanisms engaging respective locking apertures to form an assembled pair of panels, the assembled pairs being connected together to create a form with a continuous cavity to receive plastic concrete.

Abstract: A removable device (3) for attaching with fluidic connection a mold base (1) on a support (4), said device (3) comprising a male part (6) and a female part (7), said male part (6) having a truncated-cone-shaped surface (10), said female part (7) comprising a locking mechanism (26) including balls (33) suitable for engaging with said surface (10), a device wherein the female part (7) comprises a peripheral cage (27) provided with holes (2) where the balls (33) are seated, and a lock (34) provided with an annular ramp (41), mounted around said cage (27), that can be manually accessed and moved between a locking position wherein the ramp (41) is arranged in line with the balls (33), and a release position wherein the ramp (41) is separated from the balls (33).

Abstract: A diamond disc manufacturing process includes the following steps. Firstly, a container is provided, and an adhesion layer is formed in the container. A hollow member having a plurality of meshes is covered on the adhesion layer. A plurality of diamond particles is implanted on the hollow member and embedded into the meshes of the hollow member, so that the diamond particles are adhered onto the adhesion layer. Then, a resin material is infused into the container, so that the diamond particles are bonded on the resin material. Finally, the resin material together with the diamond particles is released from the container, so as to obtain a diamond disc base with the diamond particles having uniform distribution and orientation.

Abstract: A connector for a geodesic dome comprises a first coupler, a second coupler, and a third coupler. Each coupler is configured to couple with a segment, which may be a substantially straight segment. Each coupler is placed at an angle with respect to the other two couplers and with a horizontal plane, such that a geodesic dome may be constructed using a plurality of the same connectors and a plurality of the same segments.

Abstract: Disclosed is a mold wherein one bottom surface member (2) and four lateral surface members (3) are assembled. The sides of each lateral surface member (3) are respectively provided with a projection (5) and a recess (6) for combining the lateral surface members together, and the projection (5) of one lateral surface member (3) is engaged with the recess (6) of the adjacent lateral surface member (3). By using the one bottom surface member (2) and four lateral surface members (3), a mold can be assembled or disassembled without using screw or bolts. Consequently, the assembly or disassembly work of the mold is dramatically simplified, thereby improving work efficiency significantly.

Abstract: Self-supporting intermediate walls (12) for cellular division of mould lower parts in a concrete casting machine of the kind typically used for making cast items in the form of concrete blocks for wall construction and elements, solid blocks or blocks with cavities or recesses in two or more rows. By the self-supporting design, the distance between rows of products may be reduced for better utilization of the production plate while at the same time maintaining the replaceability of wear parts. By the invention is indicated a self-supporting intermediate wall (12) consisting of two halves, an intermediate wall with lower pins (18) and an intermediate wall with upper pins (20) which, when the two halves are assembled with the pins engaging a partitioning plate (8), form a self-supporting intermediate wall (12). For moulds with core supports (28), intermediate wall parts (22 and 23) are used with a recess (25) in which the boss (29) on the core support iron (28) fits.

Abstract: Methods and systems are provided for making an ophthalmic lens. The present methods and systems are effecting in coupling two mold sections together at two or more discrete regions. Embodiments of the methods and systems form a bore that extends completely through one of the mold sections and only partially through the other mold section. During formation of the bore, the mold material in proximity to the bore being foamed becomes molten and diffuses from the bore. A portion of the molten mold material is provided at a contact point between the two mold sections and when the molten material cools, the material foams a spot weld between the mold sections. By foaming multiple hollow spot welds in a mold assembly, the two mold sections can be securely coupled to each other during the manufacture of an ophthalmic lens, such as a silicone hydrogel contact lens.

Abstract: Cubipods are heavy concrete objects used as protection means for dyke or breakwater mantles on coasts or the like and have a cubic or orthohedral shape with projections on the faces (3) thereof; the number, position and geometric shape of said projections (2) may vary. The mold comprises a table (4) with a plate (6) wherein is hollowed a recess (5) corresponding with the lower projection of the cubipod (1) and has support legs (9) on a rigid plinth (10). A prismatic casing (11) with the cubipod (1) shape but lacking the upper base, rests on the table (4). A frame of profiles (18, 19) with a hood (17) for forming the upper projection is hinged on an upper edge. Mould removal is achieved by raising the casing (11), after taking away a number of dihedral surfaces (14-15) which form the lower face of the projections (2) and lower part of the casing.

Abstract: The invention provides a retaining device for assembling two panels together. The device has a support and first and second pairs of spaced-apart parallel walls extending along the support and projecting outwardly therefrom for providing first and second holding channels extending angularly to each other, each channel being adapted to receive an edge of one of the panels therein in a snugly relationship to allow assembling of the two panels. The invention also provides a formwork for forming a polygonal upright concrete structure using a plurality of retaining devices and a plurality of panels arranged with the retaining devices for providing a forming cavity between the panels adapted to receive concrete therein. There is also provided a packaging assembly for packaging goods using a plurality of retaining devices and a plurality of panels arranged with the retaining devices for providing a protecting cavity between the panels adapted to receive the goods therein.

Abstract: An adjustable mold for manufacturing a pre-cast cantilevered concrete retaining wall. The adjustable mold includes a base, at least one upright form disposed substantially perpendicular and adjacent to the base, and a plurality of rails interchangeable and repositionable adapted to be secured to the base to vary the size and surface features of the retaining wall. The base, the upright form, and the plurality of rails cooperate to define a plurality cavities in fluid communication that shape and allow sufficient curing of a combination of fluid concrete and concrete reinforcement to form a retaining wall of a selected configuration. A top surface of the base is contoured to define the mold negative of a textured shape desirable for the external surface of the pre-cast cantilevered concrete retaining wall.

Abstract: The invention relates to a process for the production of cellular or foamed, cast concrete bodies that are reinforced with metallic reinforcements, and to a reinforcement support frame for use in the production of cellular or foamed, cast concrete bodies that are reinforced with metallic reinforcing bars.

Abstract: A mold for forming a snowman includes lower, intermediate and upper generally spherical, hollow members comprised of clear plastic. Each plastic member includes an upper aperture for filling the member with snow. The lower member includes a generally flat base portion for positioning stability and an upper connection ring adapted for secure coupling to a lower connection ring on the intermediate member. The intermediate member also includes an upper connection ring adapted for secure coupling to a lower connection ring on the upper member. The three connected members form a hollow, vertical structure which when filled with snow provides a snowman of classic shape, symmetry and proportions. The individual spherical hollow members are easily connected and disconnected, with the intermediate and upper members having apertures for receiving eye, nose, mouth and arm indicia, with the upper member further including a hat mounting arrangement in one embodiment.

Abstract: A form for receiving a filler material to create an island is provided. The form is made essentially entirely out of galvannealed steel that is easily paintable. The form has a substantially continuous wall having an outer surface and an inner surface. The wall is made out of a plurality of galvannealed steel wall sections. The wall has a first side and a second side opposite the first side. The inner surface forms an enclosed chamber for receiving the filler material. A first support made out of galvannealed steel is attached to the inner surface of the first side of the wall and a second support made out of galvannealed steel is attached to the inner surface of the second side of the wall. A brace made out of galvannealed steel is disposed between the supports, wherein the brace removably engages the supports.

Abstract: A concrete formwork tube, said tube including: an internal lining; an external lining; and two or more complementary mould segments, adapted to be received between said external and internal lining; each mould segment having an inner face and an outer face; said mould segments, when assembled and substantially restrained by the external lining from relative movement, defining a moulding cavity open towards an upper and a lower end of the formwork; and at least one locking segment, said locking segment adapted to be disposed between two of said mould segments, thereby to tighten the fit of the assembled mould segments inside the external lining.

Abstract: A mold assembly and method of forming a surgical implant from bone cement. The method has the steps of connecting a plurality of mold segments to approximate the size of a patient implant. Each mold segment has an open channel. The method may further include aligning the channels of connected mold segments, positioning a centralizing holder on a reinforcement member, mixing bone cement, pouring at least some bone cement through the channels and into connected mold segments, fitting the reinforcement member into the mold segments, curing the bone cement; and removing the cured surgical implant.

Abstract: Methods and systems are provided for making an ophthalmic lens. The present methods and systems are effecting in coupling two mold sections together at two or more discrete regions. Embodiments of the methods and systems form a bore that extends completely through one of the mold sections and only partially through the other mold section. During formation of the bore, the mold material in proximity to the bore being formed becomes molten and diffuses from the bore. A portion of the molten mold material is provided at a contact point between the two mold sections and when the molten material cools, the material forms a spot weld between the mold sections. By forming multiple hollow spot welds in a mold assembly, the two mold sections can be securely coupled to each other during the manufacture of an ophthalmic lens, such as a silicone hydrogel contact lens.

Abstract: Various components useful in the sport of target shooting are disclosed herein. These components include a mold assembly for fabrication of a frozen water-based skeet, a skeet design particularly suited for fabrication from a frozen water-based liquid, and a hand-held skeet thrower for manually launching skeet. These components have utility individually or maybe combined to form a kit.

Abstract: A baking pan that includes a main support structure and a plurality of baking wells are disposed within the main support structure, wherein the plurality of baking wells combine to form a decorative shape. The baking pan is used to create decorative cakes.

Abstract: The invention relates to a mold for the production of molded parts on a jolting table, the mold having a mold frame which carries a mold insert in which recesses defining the molded parts are formed, the mold insert being surrounded by a clearance space toward the mold frame, this clearance space being at least partly filled with damping means which keeps the mold frame and mold insert at a distance apart in a non-contact manner. In this case, at least one locking element passes through the clearance space, the locking element being mounted with play in at least one of the mold frame and mold insert.

Abstract: A formwork for precast concrete panel comprises of a quadrangle panel with a base and four side panels. The formwork (10) comprises of a base (14), which is provided with an island region (20) and/or a mound region (22), a pair of parallel fixed spaced apart side panels (16) and a pair of parallel moveable side panels (18). The island region (20) and/or mound region (22) is positioned between the parallel moveable paced apart side panels (18) and wherein said parallel moveable spaced apart side panel (18) are removeably secured to the parallel fixed spaced apart side panels (16) in a tight manner in any desired distance from the center of the island (20) and/or mound (22) region.

Abstract: Dismountable casting mold side wall system including a side wall attachable dismountably to the casting mold and a magnet adapted to clamp onto a casting bed so as attach said side wall thereto, in which system the release/clamp operations of the magnet are adapted to take place in the interior space remaining between the exterior sides of said side wall.

Abstract: A mold for producing concrete articles having a mold bottom part that includes a molded chamber block having a substantially uniform thickness and side parts attached to the molding chamber block by fasteners. The molding chamber block has molding chambers located in an inner region and cutouts located on an edge region. The cutouts form intermediate webs of approximately uniform width, and at least a portion of the cutouts are undercut slots having lateral openings. The fasteners attach the side parts to the molding chamber block via the undercut slots of the cutouts.

Abstract: A mold frame for an apparatus for producing shaped concrete articles has two longitudinal and two transverse frame members which are detachably screwed to one another with form-fit on the four corners of the rectangular mold frame. The transverse frame members on their end faces have polygonal pins which fit closely into the correspondingly shaped recesses of the longitudinal frame members to resist torsional movement. The polygonal pins and recesses are penetrated by one locking screw at a time with which the mold frame is braced in itself. A mold insert which has several mold cavities is braced within the mold frame by a tongue and groove connection. The form-fit screw connection between the longitudinal and transferse frame members makes it possible to accommodate the very high forces and torques which are formed by shaking vibrations during the molding process.

Abstract: A form for casting concrete columns which simulate a stack of stone blocks. The form includes first and second side sections, each including two side panels. The side sections are releasably connected together to form a rectangular frame which has closed and open positions. The frame and a base on which the frame rests supports a column side insert. The column side insert has a central opening in which a column is cast. The column side insert imparts a desired appearance to the exterior sides of the cast column. After a column is cast, the side sections are moved to an open position and the column side insert is separated from the column.

Abstract: A modular forming system (10) configured for forming concrete box culverts (C1) and (C2) is disclosed. The inventive forming system enables a strong and secure system that is relatively easier and more efficient to assemble. The system (10) broadly includes a pallet (12), a core (14), a jacket (16), and a header (18). The pallet (12) is operable to mold the ribbed face (F2) of the culverts. The core (14) is encircled by the pallet (12) and is operable to mold the inner circumferential surface (ICS) of the culverts. The jacket (16) is supported on the pallet (12) and is operable to mold the outside circumferential surface (OCS) of the culverts. The header (18) encircles the core (14) and is operable to slide between the core (14) and the jacket (16) to mold the non-ribbed face (F1) of the culverts.

Abstract: A mold frame for an apparatus for producing shaped concrete articles has two longitudinal and two transverse frame members which are detachably screwed to one another with form-fit on the four corners of the rectangular mold frame. The transverse frame members on their end faces have polygonal pins which fit closely into the correspondingly shaped recesses of the longitudinal frame members to resist torsional movement. The polygonal pins and recesses are penetrated by one locking screw at a time with which the mold frame is braced in itself. A mold insert which has several mold cavities is braced within the mold frame by a tongue and groove connection. The form-fit screw connection between the longitudinal and transferse frame members makes it possible to accommodate the very high forces and torques which are formed by shaking vibrations during the molding process.

Abstract: A securing device comprising at least one latch (22) and at least one latch mating-element (26) are used on two mutually displaceable mold-casing segments (14, 16) to close or open a mold casing (10) used in manufacturing molded bodies, in particular concrete pipes, said device securing the mold casing (10) in a position of manufacture. The latch (22) is displaceable by means of a drive unit (24) between a locked position wherein it locks up with a latch mating-element (26) and an unlocked position wherein no locking takes place between the latch (22) and the latch mating-element (26). In the invention, the drive unit (24) can be adjusted due to relative motions between the mold casing on one hand and its manufacturing environment on the other as determined by the manufacturing procedures between a ready-to-unlock position corresponding to the locked position of the latch (22) and a ready-to-lock position corresponding to the locked position.

Abstract: A mold includes a bottom die, and an upper die closed on the bottom die and defining with the bottom die a cavity for folding molding food materials into a predetermined shape, the upper die having a coupling flange around the cavity and retaining means in the coupling flange, the bottom die having a coupling flange fitted into the coupling flange of the upper die, retaining means adapted for engaging the retaining means of the upper die, and an overflow outlet through which an overflow of inserted food passes to the outside of said mold.

Abstract: A mold side system for a concrete mold, including one or more mold side parts to be removably attached to a casting bed by one or more magnet units. The magnet unit has a front face to be supported against the back face of the mold side part, which front face includes an oblique projecting member to be placed in an oblique counter-groove or hole provided in the back face of the mold side to thereby press the front face and the back face together when the magnet unit is attached to the casting bed.

Abstract: An apparatus and method for shaping and molding material having two sidewalls, two end walls, a bottom and at least one partition. The two sidewalls have grooves spaced at predetermined intervals on an inside surface for receiving a partition and a bottom ledge for retaining the bottom. The inside surface has a plurality of openings sized for receiving holding members and may have a variety of shapes. The bottom is shaped to mate with the shape of the inside surface of the sidewalls. The two end walls include locking mechanisms for holding the various components of the apparatus together.

Abstract: A candle wick die plate includes an aluminum subframe with a split stainless steel die station. The die station has a lower member and a plurality of removable upper members. The die holes are aligned with their diameters collinear with the division between the upper members and the lower member. According to the presently preferred embodiment, each upper member is associated with a single die hole, half of which is defined by the upper member and the other half of which is defined by the lower member. Each upper member is preferably provided with an insulated handle and the lower member is preferably provided with a plurality of clamps for clamping the upper members in position. The upper and lower members are preferably provided with mating pins and holes for rapid alignment.

Abstract: A mold frame for an apparatus for producing shaped concrete articles has two longitudinal and two transverse frame members which are detachably screwed to one another with form-fit on the four corners of the rectangular mold frame. The transverse frame members on their end faces have polygonal pins which fit closely into the correspondingly shaped recesses of the longitudinal frame members to resist torsional movement. The polygonal pins and recesses are penetrated by one locking screw at a time with which the mold frame is braced in itself. A mold insert which has several mold cavities is braced within the mold frame by a tongue and groove connection. The form-fit screw connection between the longitudinal and transferse frame members makes it possible to accommodate the very high forces and torques which are formed by shaking vibrations during the molding process.

Abstract: A building foundation form apparatus and method uses transverse form supports (15) supported directly on the ground and carrying longitudinal form supports (21, 22) adjustably located on opposite sides of, and substantially parallel to, a foundation axis (17). A flexible sheet form element (25) has edge portions (57, 58) connected to the longitudinal form supports (21, 22) and a contact portion (60) located between the edge portions and supported on the ground and deformed into a general U-shape with overhanging bulges (39) to receive the flowable and settable foundation mixture. The longitudinal form supports (21, 22) are adjustable vertically to accommodate ground undulations to ensure correct footing width. The contact portion (60) has mesh opening to pass the foundation mixture therethrough to enhance adhesion to the ground.

Abstract: A side wall system for a concrete casting mould, including a side part (1, 7) which is removably attachable to a casting bed by means of one or several magnets (11). The body (10) of the magnet part that carries the magnet (11) is provided with a gripping loop (14) or with a downwardly open gripping hook through which a release lever can be pushed in order to detach the magnet from the casting bed.

Abstract: A cement mold for use in forming a temporary orthopedic implant used in an orthopedic surgical procedure. The cement mold includes a first mold to define a first portion of the temporary implant and a second mold to define a second portion of the temporary implant. A coupling mechanism joins the first mold to the second mold such that the cement mold is substantially sealed to define the temporary implant. The cement mold further defines an input port which is operable to receive a delivery nozzle to supply antibiotic loaded bone cement within an inner sidewall of the cement mold. At least one ventilation port is defined by the cement mold which is operable to vent trapped air upon filling the cement mold with the antibiotic loaded bone cement through the input port. The cement mold further includes a removal mechanism which is operable to assist in tearing and separating the cement mold from the temporary implant.

Abstract: A mold assembly including an outer mold and an associated inner mold, the inner mold being organized to engage in the outer mold, the outer mold having a curved main portion with a central opening and an outer rim extending in a plane, and the inner mold having a curved main portion with a central chimney shaped to pass with small clearance through the opening and an outer rim which, when the molds are mutually engaged, is coplanar with the outer rim of the outer mold and co-operates therewith to close the molding space defined between the curved portions.

Abstract: A liquid cooled wax mold includes a generally rectangular two-part heat transfer member formed by separable metal plates. One of the plates includes elongated parallel vertically-extending heat transfer bars or fins defining parallel liquid coolant flow passages. The coolant flow passages interconnect spaced apart liquid coolant distribution and collection passages which are, respectively, connected to coolant inlet and discharge passages. A dam is interposed between the coolant collection passage and the discharge passage to provide for purging air or coolant vapor from the coolant flow circuit. Elongated circular cross section seal strips are disposed in grooves formed in one of the plate members to provide a fluid-tight assembly of the heat transfer member. Mold endwall and bottomwall members are secured to the heat transfer member by socket head machine screw fasteners.

Abstract: A method is provided for constructing a snow shelter. A set of fabric panels is connected together to provide a short skirt into which snow is filled throughout and compacted on the periphery. Panels are then connected to a higher level and additional snow is filled in throughout and compacted on the periphery. When the panels have been completely connected and filled with snow, they encompass a snow dome packed around the surface. The panels may then be removed and the dome hollowed out to provide a snow shelter. The hollowing out process may be guided through the use of probes that are pressed into the dome from the outside to provide a depth gauge. A closeable door may also be installed against the dome opening after the dome is constructed.