Abstract: A brace for a shelf support extending outwardly from an upright includes an elongated member having first and second ends, a first means on the first end of the elongated member for releasably securing the brace to an upright at a position below the shelf support, a second means on the second end of the elongated member for releasably securing the brace to the shelf support, the second means being pivotally connected to the elongated member so as to provide adjustablility of the angle between the elongated member and the second means.

Abstract: A gun cleaning device is provided that is adaptable for guns having different sizes and gauges of barrels and that can be securely mounted in an operating position at the breech end of a gun barrel for a highly accurate and improved movement of its rod-carrying, end-mounted, bore cleaning element which element is wholly retained within the gun bore. The device greatly minimizes wear and tear on the bore and its lands during a cleaning operation. Its rod is guidably positioned in a carrier sleeve which, at its front end, cooperates with a breech mounting plug to loosely limit its sidewise movement and which at its back end cooperates with a close-clearance-defining bore of a plug-like guide sleeve. The rod also has a rotatable, back-end-mounted grip handle that permits turning movement of the rod and the bore cleaning element with lands of the gun rifling.

Abstract: A butterfly valve for controlling the flow of high temperature fluids, particularly hot gases, comprises a fluid cooled disc, fluid cooled shafts and a fluid cooled body. The coolant fluid is preferably water. The disc includes a plurality of baffle strips positioned within a hollow interior defining a continuous, serpentine-like coolant flow passageway across the disc for uniform cooling thereof. An outer peripheral edge of the disc carries a resilient high-temperature sealing strip, preferably of a braided Inconel material, for improved gas sealing. The shafts which rotatably mount the disc within the body are hollow and are also cooled by the coolant fluid which is supplied to the disc. The valve body includes a fluid cooling jacket formed adjacent an inner sidewall which forms a seal with the disc along a circumferential surface portion thereof.

Abstract: A wheelchair is adjustable between a compact configuration, in which the center of gravity lies in a vertical plane (50), which intersects wheels (16,116) on a front carrier of the wheelchair and an extended configuration in which the center of gravity lies in a vertical plane spaced substantially from all wheels of the wheelchair.

Abstract: A universal coke oven door for use on varying width oven chambers in a coke oven battery is formed with hot side refractory sections and cold side refractory sections spaced therefrom. Ceramic wiper strips are provided which extend outwardly from the sides of the hot side refractory sections towards the oven doorjambs to prevent passage of coal or coke between the hot side refractory layer and the doorjambs. Sole plates may be provided on the bottommost refractory sections of the hot side or cold side refractory layers, while an extension is provided on the topmost refractory section of the hot side refractory layer which extends towards the cold side refractory layer and prevents coal or coke from entering the spacing between the two refractory layers.

Abstract: A mass flow meter includes a hollow base pipe having an inlet adapted to be attached to the discharge line of an air compressor or like apparatus to be tested. The base pipe also has an outlet end which is fitted with one of a plurality of convergent nozzles of differing, known throat diameters. A pressure gauge is fitted to the base pipe, upstream of the nozzle, to sense the pressure therein. The pressure gauge has ring-shaped mass flow rate indicia thereon which are individually calibrated to conform to each of the sized nozzles to permit direct reading of mass flow rates as a function of pressure.

Abstract: An internal combustion engine has a pair of stepped cylinders (14,15) in which stepped pistons (P1,P2) are received, each cylinder (14,15) and piston (P1,P2) having a pumping part of larger diameter and a working part of smaller diameter transfer paths from each of the pumping parts of each cylinder to the working part of the other comprising first passage parts (27,27') extending from the pumping parts (15a,14a) to second passage parts (28,28') and third passage parts comprising at least two branches (29,29') connecting the second passage parts (28,28') and the working parts (16a,16b) of the cylinder, the first (27,27') and third (29,29') passage parts each crossing an interface (1) between the crankcase 12 and cylinder block (11) via aligned parts, and the second passage parts (28,28') being wholly contained in the crankcase (12).

Abstract: A slaker includes a substantially straight, circular sidewall, a substantially flat bottom, and a top. A solid and a liquid feed inlet are disposed at the top of the vessel and an outlet is disposed at the bottom of the vessel. Apparatus is provided for mixing the solid and the liquid within the vessel at high speed and separate apparatus is provided for sweeping the bottom and sidewall of the vessel at low speed. The mixing apparatus and the sweeping apparatus apply substantially only horizontal forces to the solid and the liquid being mixed within the vessel. The slaker further includes apparatus for recirculating at least a portion of the solid and the liquid being mixed within the vessel which flows through the outlet and apparatus for discharging the resultant mixed solid and liquid from the slaker.

Abstract: An inexpensive, quick change pricing display on a sign board employs one or more basic numerical arabic figure eight digits of a segmented construction. Each basic numerical eight is made up of designator segments that may have contrasting color with respect to a viewing background of the display or sign. Numerical digits of zero through nine are selectively formed on each basic eight by applying or removing covering strip segments or elements which may be of the same or a different color as the viewing background to selective designator segments of each basic eight in such a manner as to leave exposed or to present color segments that represent the desired numerical digit.

Abstract: A method and apparatus for pneumatically conveying solid materials such as soil, stones and the like. A hollow bored tube having an inlet end, a discharge end and an intermediate injector section is provided with at least one nozzle of the converging/diverging type within the injector section. A compressor supplies air at a pressure of about 90 psig to the nozzle to create an air stream within the tube directed toward the discharge end thereof, at a velocity in the supersonic regime. A strong vacuum is thus created in the region of the inlet end to provide rapid evacuation of the solids into the tube for conveyance therethrough and ejection at the discharge end thereof.

Abstract: A unit dose dispensing collapsible tube adapted to dispense a viscous liquid therefrom includes a collapsible tube portion and a unit dose dispenser. The unit dose dispenser includes a cap member on the collapsible tube portion, and a closure element connected to the cap member. The cap member has an opening therein to provide a path of flow for the viscous liquid in the collapsible tube portion from the collapsible tube portion to the unit dose dispenser, and an indentation therein to define a unit dose-measuring section adapted to hold a unit dose of a viscous liquid. The closure element has a lower surface with a configuration complementary to the bottom surface of the unit dose-measuring section of the cap member and a passageway therethrough in fluid flow communication with the viscous liquid in the collapsible tube portion and the unit dose-measuring section.

Abstract: A retainer for securing a shelf support to a wall. The retainer comprises a base having a first side for facing a wall and an oppositely facing second side. First and second spaced, generally parallel projections, extend generally perpendicularly outwardly from the second side of the base. A recess-engaging section extends generally perpendicularly outwardly from the second side of the base, between and generally parallel to the projections, and is adapted to be received within a recess in an end of a shelf support when the end of the shelf support is received between the projections. Means are disposed on the base for variably spacing the retainer from a wall. When the shelf support is disposed between the projections of the retainer, and the wall engaging means of the shelf support is inserted within a groove in the planar surface of the wall and engages a vertical member disposed within the wall, the projections inhibit lateral movement of the shelf support.

Abstract: A sensible and latent heat exchange media comprises a gas permeable matrix. The gas permeable matrix provides passageways therethrough through which an air stream can flow through the sensible and latent heat exchange media. The gas permeable matrix is formed of a sensible heat exchange material that is capable of absorbing sensible heat from a warm air stream and releasing the absorbed sensible heat into a cool air stream as the air streams flow through the sensible and latent heat exchange media. A layer of a coating composition comprising a molecular sieve is applied to at least a portion of the surface of the sensible heat exchange material.

Abstract: A binning and banding structure, binning partition and novel clips to secure binning and banding partitions to each other. The clips include a first U-shaped clamp having arms capable of gripping the vertical edge of a binning partition and a second U-shaped clamp integral with the first U-shaped clamp capable of sliding into engagement with the top edge of the banding partition. The arms on the first U-shaped clamp include means engageable with means on the binning partition for limited sliding vertical movement of the clip on the binning partition and for inhibiting horizontal longitudinal movement of the clip on the binning partition.

Abstract: Discrete volumes, or slugs, of liquid are accelerated to high velocities utilizing energy stored by compressing the liquid. Liquid is forced into a pressure vessel already filled with liquid to effect the compression. A slug of liquid is ejected from the pressure vessel into a cumulation nozzle by the energy stored in the compressed liquid when a valve is rapidly opened. The valve is unseated when an unseating force exceeds a closing bias. The valve is then opened rapidly by an opening force generated by the compressed liquid. By repetitively introducing highly pressurized liquid into the pressure vessel, the valve automatically cycles to generate a series of pulsed liquid jets. Rapid opening of the valve is aided by an extension on the valve member which sealingly slides inside the passage of the cumulation nozzle to block release of liquid until the valve member accelerates sufficiently that the required opening rate is achieved as the extension clears the nozzle passage.

Abstract: A tube plug for stopping the bore of a condensor tube or like conduit. The plug device includes a shoulder bolt having a flange at one end and a threaded shaft at the other. An enlarged shank portion extends outwardly a distance from the flange and terminates at a shoulder region. A resilient sleeve of an elastomeric material is positioned on the enlarged shank, bearing against the flange at one end, with the opposite sleeve end spaced outwardly from the bolt shoulder region. Mechanical gripper elements are positioned on the bolt and are expanded by movement of a nut along the threaded shaft. A washer positioned between the resilient sleeve and the mechanical gripper elements transmits an axial compressive force to the resilient sleeve to create first and second fluid seals around the sleeve and around the bolt shank respectively. The washer stops at the shoulder region to permit additional torquing of the mechanical gripping elements independent of the resilient sleeve.

Abstract: An integrated dust containment system for machines such as rotary crusher/breakers, vibratory screens and the like of the type use in sizing dusty bulk materials, such as for coal, ore and the like. A substantially airtight enclosure having integral air filter means and fan means is detachably fitted to the machine housing adjacent the material treating station such that the air filter means is in communication with the dust generation area of the machine. A negative draft generated by the fan means draws in dust laden air from inlet and discharge zones of the machine, as well as from the material treating station for capture of the dust in the filter means and susequent discharge of clean, filtered air from the fan means. Pulsed, compressed air back flushing of the filter means cleans the filters and returns the collected dust cake to the machine interior for subsequent recovery.

Abstract: A magnetically operated rotative amusement device or unit of a substantially self-starting nature has a see-through or transparent container or bowl-like support base provided with a lower, centrally disposed, pivot-receiving socket. A spinner has a pivot pin adapted to rest in the socket and to extend upwardly towards an open mouth portion of the support base. The support base has either an inner collar or a relatively narrow bowl to support the spinner in an upright, slightly tilted position in a ready-to-operate relation therein. A dome-shaped lid is used to close-off an open mouth portion of the support base and has a centrally, downwardly extending, permanent magnet supported in a vertically adjustable relation in which it is slightly spaced from and aligned with a second and opposing magnet carried by an upper end of the spinner.

Abstract: A device for safely and economically removing asbestos and like materials from ceiling surfaces comprises an extensible hoist which is motorized for travel along a floor beneath the ceiling to be stripped. The hoist includes an open-topped hopper which is adapted to be moved to a position adjacent the ceiling. A pair of motor driven auger cutters are positioned on the top of the hopper adapted to cuttingly engage the asbestos and deposit it within the hopper. The hopper has a discharge opening at the bottom which is connected to a closed collection drum via a conduit mounted beneath the hopper for storing the stripped asbestos material therein. Spring biasing means are associated with a hopper mounting frame to provide constant contact between the augers and the ceiling.