Abstract: A motor-driven nut-grinding apparatus is constructed to effectively operate at much lower than conventional speeds and has a front-mounted, unitary casting part providing a back mounting plate wall, a feed chute, a forwardly extending feed and grinding hub, and a front mounting for a stationary grinding disc. The hub has an open-end bore that journals a motor-driven auger shaft on which a rotating grinding disc is mounted to cooperate and define a final grinding chamber with the stationary grinding plate. A back portion of the auger shaft has a cylindrical, reduced diameter portion that with at least about one and a half of auger convolution turns, is exposed through a window in the hub and an open mouth of the chute to provide a non-jamming receiving area for nut kernels from a downwardly converging mouth portion of the feed chute.

Abstract: The unplugging apparatus includes a conduit which extends through the wall of an annular member to a generally cylindrical lance housing disposed within the annular member. The upper end of the lance housing is disposed above and proximate the elevation of the conduit. A bushing is disposed within the housing at its upper end and guides upward movement of a tube which is partially disposed within the housing. The tube carries a charge of combustible material and has an upper end disposed outside the housing and a bottom flared portion disposed within the housing. The bushing defines a stop surface for the bottom flared portion of the tube. A combustible collar is mounted on the tube upper end and surrounds a portion of the charge of combustible material which extends past the tube upper end.

Abstract: A coke oven door liner comprises a first refractory layer, a second refractory layer and connecting means. The first refractory layer has an outer surface which is adapted to abut the inner surface of the coke oven door and has width and height dimensions which are substantially coextensive with those of the opening to the coke oven which is sealed by the coke oven door. The second refractory layer, disposed within the coke oven, has width and height dimensions substantially coextensive with those of the first refractory layer and is spaced apart from and generally parallel to the first refractory layer, thus creating an elongated chamber between the first and second refractory layers. A connecting means connects the second refractory layer to the first refractory layer and allows for gases created by burning coal within the coke oven to enter the elongated chamber created between the first and second refractory layers and rise to the top portion of the coke oven to be removed from the coke oven.

Abstract: An apparatus for transferring liquid between regions of a first and a second pressure comprising:a vessel,a dividing member in the vessel, the vessel and the dividing member being relatively movable to divide the vessel into separate variable volume chambers,a first pair of valves,one of which controls passage of liquid between a first of said chambers and said region of a first pressure,the other of which controls passage of liquid between a second of said chambers and said region of a first pressure,a second pair of valves, one of which controls passage of liquid between said first chamber and said region of a second pressure,the other of which controls passage of liquid between said second chamber and said region of a second pressure,operating means repeatedly to perform the following cycle of operations;close the valves of one of said pairs and open the valves of the other of said pairs,then move the dividing member to cause the volume of said first chamber to increase and the volume of said second chambe

Abstract: A flash economizer employing an enclosed upright container has upper, intermediate and lower chambers for flashing pressurized blowdown effluent in the nature of moisture-contaminated steam. It is constructed to initially separate and remove pure steam in its upper so-called flashing chamber and to thereafter maximize, principally in the intermediate chamber, an indirect transfer of heat from the remaining heat-containing condensate or water to a clean effluent, such as make-up water. An upwardly spiraled tubing array positioned about and along the intermediate chamber receives the clean effluent and advances it in an upwardly spiraled counterclockwise path therealong, while the heat-containing condensate is directed in a downflow, counter or clockwise-spiraled path along the tubing array. The tubing array is carried by an enclosing support structure that defines a spiral downflow path for the heated condensate therealong and therabout.

Abstract: An integrally molded, generally rectangular, tamper-evident, reclosable lid for a container is formed from a rigid thermoplastic and has a peripheral wall section that defines a recess, with a rupturable planar member extending across the recess, and has an integral closure member hingedly connected to the peripheral wall section. The planar member and closure member provide a double seal prior to opening by a user, and after removal of the rupturable portion of the planar member, the integral hinged closure member provides a seal for the contents of the container. The lid is formed from a rigid plastic having a tensile modulus and flexural modulus in excess of 100.times.10.sup.3 p.s.i. and a melting point in excess of 140.degree. C. to provide a lid resistant to removal from a container as well as other properties desired.

Abstract: A tamper-evident, reclosable, integral rigid plastic lid for use on a container having an upper circular wall provides a double seal for the container contents until opened by a user and a single seal thereafter. The lid has a circular base, with a recess therein and a rupturable planar member extending across the recess, and a hinged closure member secured to a platform which completely covers the recess. The platform is in the shape of a segment of the circle formed by the circular base with a downwardly extending face provided along a chord of the circle which, with an arcuate raised rim about the circular base forms the bounds of the recess.

Abstract: A unitary plastic container and integrally molded, tamper-evident, reclosable lid, which lid has a recessed planar member, with a rupturable portion, and an integral closure member hingedly secured thereto. The planar member and closure member provide an initial double seal for the contents of the container while the closure member provides a single seal for the contents after removal of the planar member. The container and integral lid are preferably formed from a rigid plastic material such as polypropylene.

Abstract: The apparatus includes a crosshead and die assembly for the extrusion of polymeric resins and the like into tubular shapes, for example, of single or multiple layers. A crosshead body has a side fed resin inlet orifice which communicates with a first resin distribution channel extending 180.degree. around an inner mandrel, the first channels having gate orifices at the ends thereof. The gate orifices feed heated resin to a second resin distribution channel which extends 360.degree. around the mandrel and communicates with a first restrictive annular opening which also extends 360.degree. around the mandrel. The first restrictive annular opening feeds resin to a third resin distribution channel which also is formed 360.degree. around the mandrel. A second restrictive annular opening communicates with the third resin distribution channel 360.degree. around its circumference and feeds the molten resin or the like to an annular opening formed between the inner mandrel and the crosshead body.

Abstract: A method and apparatus for the containment of dust within a bulk cargo container such as a ship or barge hold. A horizontal stream of ambient air is directed across the hatch opening by a plurality of interconnected air curtain modules which captures fugitive dust along its path. A plurality of interconnected dust collector modules withdraw the entrained dust particles at an opposite side of the hatch opening and exhaust the filtered air stream therefrom and deposit the filter cake back into the hold. The clean exhaust air from the dust collector modules may be used to form a vertical air curtain to deflect crosswinds.

Abstract: An improved integrated system is provided for horizontally-longitudinally cast-forming a continuous length of metal ingot. An ablative material is fed lengthwise and introduced as a lining on a continuous, forwardly moving, heat-resistant flexible belt. The ablative material and the belt are shaped into a composite, forwardly moving, open top, trough-like shape into which molten metal is introduced by a ladle that is rotated at a desired supplying rate. The ablative is charred by the molten metal to provide an initial cooling action on the metal as received and to thereafter protect it and the belt while the composite and the metal are forwardly advanced along a channel-shaped, longitudinally extending, metal ingot-forming, casting station.

Abstract: A foolproof sanitary pour type of end cap is provided for a container or can that may be used for providing and dispensing powdered or granular items, such as foods, vitamin and medicine capsules or liquids, such as carbonated soft drinks. The cap body provides an initial completely hermetically sealed cover for the container after the goods have been placed therein for shipment, storage and sale. The sealed relation is such that the inside of the container and its contents cannot be exposed without tearing-off a membrane closure portion across a centrally disposed, inset pouring spout or collar. When the contents are to be first used, a swingable closure lid is opened and the membrane is removed by a pull tab. However, the remaining contents can be then closed-off by the swingable lid which has means for maintaining the contents in a sealed-off relation from the ambient atmosphere and has latching means for flexibly retaining it in closed position until an additional quantity of the contents is to be used.

Abstract: A bulk material receiving hopper is provided with a dust containment system which includes sloped shield plates positioned adjacent a top portion of the hopper to effectively close-off substantially all of the open space thereacross. Restricted material openings are defined by the shield plates and an isolated, dust containment region is established therebeneath to trap the displaced air and entrained fugitive dust generated during a dumping operation. One or more dust collector units communicate with the isolated dust containment region to draw in the displaced air and entrained dust particles.

Abstract: A window sash member includes first and second generally parallel sidewalls. First and second spaced, generally parallel transverse walls, extending between and oriented generally perpendicular to the first and second sidewalls, connect the first and second sidewalls to define a first hollow chamber. A third transverse wall, located without the first hollow chamber adjacent to and generally parallel to the first transverse wall, extends from the first transverse wall and terminates short of the second sidewall. A first interior wall, oriented generally parallel to the first sidewall, extends from the third transverse wall to the first transverse wall to define a second hollow chamber. A fourth transverse wall, located without the first hollow chamber adjacent to and generally parallel to the second transverse wall, extends from the first sidewall and terminates short of the second sidewall.

Abstract: A bandsaw blade for use in milling timber having in-line swaged teeth, wherein the cutting tip of each tooth, in front profile, is triangular in shape with a central apical point (30) and two side points (32, 34). Preferably, the apical angle (.theta.) is from 60.degree. to 140.degree., with the base angles (.gamma.) of the tip being equal to one another and lying from 20.degree. to 60.degree., thus providing an elongate pentagon shape in front profile. Also, a dark blue temper band (50) may be curved so that its top is spaced below the apical point (30) by a distance of 0.5 to 1.3 times, preferably 0.6 to 1.2 times, the blade thickness.

Abstract: The thermal treatment is effected in that hot gases are passed through the charge bed. Hot gases are passed downwardly through the charge bed in heat treating zone, oxygen-containing cooling gases are passed upwardly through the charge bed in a cooling zone, and the cooling gases which have been heated are conducted under a continuous gas hood from the cooling zone into the heat treating zone.

Abstract: A panel for use as a temporary room divider or screen is formed by adhesively securing to one face of a first rectangular sheet of rigid material, along each of two opposing edges, one face of a tongue of an edging strip having a body providing an outwardly open channel, and fitting a second similar rectangular sheet over and in register with the first sheet, so that two opposing edges of the second sheet also lie along the edging strips. The tongues of the edging strips are stuck to the sheets, and the sheets stuck to one another, by double sided adhesive tapes of appropriate thicknesses. After the two sheets have been stuck together and to said edging strips, cloth or the like covering material is stuck to the outer face of each sheet and surplus edge portions of the cloth or the like are tucked between the edging strips and the adjacent edges of the sheets of rigid material.

Abstract: A circular solvent extractor useful in a commercial process for the removal of bitumen from tar or oil sands or other solvent extraction processes requiring high tonnage throughput. The extractor comprises two major segments that are stationary, namely, a ring-shaped roof member and a ring-shaped drain trough means positioned therebeneath, and one segment that is movable which comprises a pair of continuous, spaced-apart sidewalls having a plurality of spaced-apart, liquid permeable, process cells rotatably attached to the sidewalls. The sidewalls and their attached process cells are movable about a circular trackway for travel between the fixed hood and drain trough means, forming an annular process chamber therearound. The annular chamber is sealed by upper and lower, circumferential liquid seals coacting between the moving sidewalls and the stationary hood and drain trough means to prevent the leakage of solvent vapors therefrom.

Abstract: A socket-shaped, lightweight, substantially rigidly framed, improved eye patch is provided that is to be adhesively, securely mounted on a surrounding bone structure of an eye. It is constructed to conform to the facial structure of a wearer, has hidden adhesive mounting tabs, provides a fabric-enclosing frame and is adaptable to a suitable spaced relation of its fabric covering material with respect to the eye of the wearer.

Abstract: A method of operating an internal combustion engine in which there is introduced into a combustion chamber, inert carrier gas, combustion supporting gas and fuel, the fuel is caused to combust in the combustion chamber and exhaust gas is exhausted from the combustion chamber wherein the carrier gas comprises a significant proportion of carbon dioxide and the exhaust gas is treated with water to remove from the exhaust gas and absorb in the water an amount of carbon dioxide generally equal to the quantity of carbon dioxide added by said combustion, and the thus treated exhaust gas is returned to the combustion chamber to provide the carrier gas. The carrier gas may have inert gas such as argon added thereto in proportions controlled such that the gamma value of the mixture of gases equals a predetermined value which may be approximately that of air.