Abstract: An extrusion die for forming a honeycomb structure having a plurality of interconnected discharge slots provided with a plurality of relatively small sized feed holes directly communicating with intersecting portions of said discharge slots, and a plurality of relatively larger feed passageways each communicating with a plurality of said relatively small sized feed holes, with said feed holes and feed passageways extending longitudinally of said die and the flow through said die such that a portion of such flow may pass directly through such die in a linear path.

Abstract: A solar energy collector structure has been provided which comprises a plurality of at least partially evacuated tubular members arranged in a group and closely packed in parallel axial alignment. The tubular members are joined together to form a tube sheet. A pair of such tube sheets are placed in tandem with a pair of opposite margins thereof being sealed, one to the other, to form a flow channel therebetween. An absorber, disposed between the tube sheets, in the flow channel, intercepts and absorbs solar energy, which by heat transfer is carried off by a working fluid in the heat exchange relation with the absorber surface.

Abstract: A differentially cooled plunger cooperative with a mold for press forming glass articles and the method of cooling pressed glass articles formed in said mold by use of the pressing plunger. The plunger is designed so that cooling fluid may be supplied from a single source thereof to different zones or regions of the plunger for differential cooling of the zones or regions and of a glass article press formed by the plunger.

Abstract: A package or package assembly comprising a carton for holding a plurality of five funnel-neck portions for television picture tubes with one such tube portion resting on the bottom of the carton in a neck-up orientation and including a paperboard separator and support assembly for spacing and supporting the remaining four of the tube portions in the carton with the necks thereof extending generally horizontally past the neck of the first tube portion in a rotary arrangement substantially corresponding to that of the ends of the arms of a swastika.

Abstract: A preformed sheet of glass is formed by sagging such a sheet with a plurality of linked indentations comprising multiple curved interdependent impressions from which a plurality of sagged pieces are cut to produce lenses in final form.

Abstract: A gobbing member is operated wholly within the confines of a straight well portion of a glass delivery system, and completely submerged within the molten glass being delivered, such that the flow rate through the delivery orifice of such straight well is linearly related to the speed of said gobbing member independently of the position of such member within the confines of the straight well.

Abstract: A float unit having two float portions operates a switching unit to stop the supply of liquid at a selected high level and to reestablish the supply at a selected low level. The switching unit may be a precision snap-acting switch, and the float unit may be integrally formed from glass. In the preferred embodiment, the switch and an upper switch-engaging portion of the float are mounted in a housing which serves as a closure for a container.

Abstract: A mask or face plate, having an orifice or opening formed therethrough of desired size and configuration, is positioned against the discharge face of an extrusion die. The mask restricts the flow of extrudable material through the die so that such material will conform to the size and configuration of the opening or orifice formed through the mask. A recess formed in the face of the mask adjacent the discharge face of the extrusion die, surrounds the orifice formed therethrough, and communicates with said orifice by means of a gap formed in the inlet face of the mask between said recess and said orifice.

Abstract: An electrical cooking or heating unit comprising a plate of a glassy material including a selected portion thereof upon whose upper surface vessels are to be placed for cooking purposes. The lower surface of the selected portion of the plate is provided with at least one sinuous strip of a gold/platinum alloy which integrally forms the electrical resistance heating element for the heating or cooking unit. A porous and partially sintered overglaze or coating covers the heating element and the portion of the lower surface of the plate on which the heating element is provided, such glaze preventing or inhibiting cracking, peeling or agglomeration of the heating element to provide a resultant increase in electrical resistivity. The life of the heating or cooking unit is thereby substantially increased.

Abstract: A heat pipe for converting solar energy into thermal energy comprising an envelope provided with an evaporator region and a condensor region, a quantity of vaporizable working fluid within the envelope, a wick within the envelope having capillary means for transporting the working fluid, and, preferably, evacuated transparent container means surrounding the evaporator region for insulating the evaporator region. The evaporator region of the heat pipe is made from a material which is substantially transparent to radiation in a selected range of the solar spectrum, and a wick therewithin which substantially absorbs radiation in at least a portion of the range of the solar spectrum transmitted through the evaporator region. Solar energy is thereby converted into thermal energy or heat directly within the wick, and the heat generated within the wick causes portions of the working fluid therein to evaporate.

Abstract: A differentially cooled plunger cooperative with a mold for press forming glass articles and the method of cooling pressed glass articles formed in said mold by use of the pressing plunger. The plunger is designed so that cooling fluid may be supplied from a single source thereof to different zones or regions of the plunger for differential cooling of the zones or regions and of a glass article press formed by the plunger.

Abstract: A relatively thin, smooth surfaced mold of low thermal expansion material which exhibits non-sticking qualities is disclosed for contouring glass articles, such as by sagging a preform to the contour of the mold. In addition, a method of forming such molds with a desired surface contour is disclosed.

Abstract: An electrical cooking or heating unit comprising a plate of a glassy material inluding a selected portion thereof upon whose upper surface vessels are to be placed for cooking purposes. The lower surface of the selected portion of the plate is provided with at least one sinuous strip of a gold/platinum alloy which integrally forms the electrical resistance heating element for the heating or cooking unit. A porous and partially sintered overglaze or coating covers the heating element and the portion of the lower surface of the plate on which the heating element is provided, such glaze preventing or inhibiting cracking, peeling or agglomeration of the heating element to provide a resultant increase in electrical resistivity. The life of the heating or cooking unit is thereby substantially increased.

Abstract: In the hot forming of TV funnels from molten glass, heat is extracted from the glass in the moil area at a lesser rate than that in adjacent areas by providing relatively thin mold portions in such area and thereby producing more fluid glass which may be formed with lower pressing forces. Further, by reducing the wall thickness of the nose portion of a pressing plunger, internal cooling may be applied to such nose portion during the pressing cycle to cool such nose portion and contract it away from the moil area, and thereby prevent the formation of checks and cracks during plunger withdrawal.

Abstract: In the sealing of two glass surfaces together in the formation of a hermetically sealed hollow article, it is important that the opposed seal edges be uniformly complementary along their sealing extent, and a method of sagging the seal edge to a desired surface contour is disclosed.

Abstract: In apparatus for effecting a sealed separation or partition between two phases of a multiphase liquid upon centrifugation of the multiphase liquid, a device which facilitates access through the partition to a phase of a separated multiphase liquid which is confined between the partition and a lower or closed end of a vessel retaining such liquid.

Abstract: A plurality of individual pre-shaped cores or pins are initially positioned in a prearranged orientation upon an outlet surface of a die body by means of a plate of photosensitive glass or glass-ceramic material which has been etched to form a mask with the desired pattern or arrangement of openings for orienting said cores or pins upon said die surface for subsequent securement thereto such as by welding.

Abstract: A honeycomb structure is formed with a plurality of interconnected partitions which are unidirectionally discontinuous in a plane transverse to the longitudinal axis of the structure and which form a plurality of diamond-shaped cellular open portions extending longitudinally through the structure, to thereby provide a honeycomb structure with a relatively low bulk modulus and substantially isotropic moduli in transverse planes perpendicular to the longitudinal axis of the honeycomb structure, thus providing improved thermal shock resistance.

Abstract: A guide roller assembly rapidly adjustable to accommodate, at different times, lengths of different widths of tape, ribbon or similar material so as to maintain the centers of the widths of such lengths in alignment with a centerline extending about the periphery of the roller of said assembly midway between the ends thereof and during longitudinal movement of each said length over part of the periphery of the roller.

Abstract: An apparatus assembly for distributing and adjusting flow of cooling fluid to control the temperature of a glass forming mold used for forming generally funnel-shaped articles such as, for example, funnel members for glass television picture tube envelopes, the assembly including a cooling fluid distributor in the form of an orifice member or perforate baffle and a plurality of adjustable valves for selectively adjusting and directing the flow of the cooling fluid to and about different parts of the outer surface of the forming mold for selective temperature control of the mold during the forming of glass articles therein.