Abstract: The weight of crank mechanism portion is reduced and driving force efficiency is improved by reducing in the friction loss in the driving force on the side of a compression piston. A gas compressor expander includes a first expansion cylinder and a first displacer arranged in a T shape, a first connecting lever, a first compression cylinder, a first compression piston, a second expansion cylinder and a second displacer also arranged in a T shape, a second connecting lever, a second compression cylinder, a second compression piston. A first expansion chamber, a first compression chamber, and a third compression chamber are communicated through a first communicating tube, while a second expansion chamber, a second compression chamber, and a fourth compression chamber are communicated through a second communicating tube.

Abstract: An asphalt plant for producing asphalt paving, the asphalt plant including: a) a dryer unit for heating stone aggregate, the dryer unit including a container and a burner for producing a flame to provide thermal energy for heating the stone aggregate in the container; b) a supply of burner fuel for providing fuel for the burner flame; c) a supply of burner air for providing oxygen to the burner flame; and d) the dryer unit including a grate which is spaced from the burner, the grate defining a plurality of openings, such that the burner flame extends through the openings, and such that the grate improves the thermal efficiency of the dryer unit for heating the stone aggregate.

Abstract: Apparatus and process for sterilizing and drying products comprising a first step of autoclaving and a second step of cyclic pressurizing with a substantially dry contaminant-free gas. The second step obviates the problem of recontamination after sterilization and permits drying at lower than conventional temperatures.

Abstract: In a dryer section comprised of several drying groups, and particularly an alternating single tier dryer section, one of the bottom felted drying groups is arranged with respect to the paper machine floor so at least the rotating shafts at the axis of the drying cylinders of the one drying group are below the paper machine floor. The guide rolls of the bottom felted drying group and of an adjacent top felted drying group may be in one horizontal shaft plane above the paper machine floor. An intermediate floor is provided beneath the main machine floor and the bottom of the basement beneath the one drying group. Easier access to the drying cylinders and elements of both top felted and bottom felted drying groups is obtained.

Abstract: A traffic channelizing device has a base unit made from the sidewalls of used tires, and additional tire components such as tread portions or other sidewalls, at least partially secured between the sidewalls. Tread portions may be wound spirally between opposing sidewall portions, or horizontally-arranged sidewalls may be positioned partially between the opposing sidewall portion, and may be cut and shaped to a non-circular inner shape to accommodate barrels which have a non-circular shape. Wire ties or the like are used to bind the sidewalls to produce an irregular exterior shape, so that the devices are not inclined to roll when overturned. The base separates readily from the barrel in the event of an impact.

Abstract: Residual moisture is removed from an article by placing the article in a chamber, supplying heated fresh air to the chamber via one or more air knives, and evacuating the chamber to remove the residual moisture. The air knives entrain ambient air from within the chamber by Coanda effect air flow, thereby circulating a mixture of fresh air and ambient air about the article. The supply of air to the chamber is interrupted while the chamber is being evacuated to reduce the air pressure within the chamber to on kPa to vaporize residual moisture in the article.

Abstract: A rotary drying drum for a moving web includes a stationary heater drum positioned coaxially within the drying drum such that the drying drum rotates around the heater drum. The heater drum may be supplied with steam via a hollow drying drum shaft without the use of high pressure steam joints. Heat from the interior heater drum is transferred to the rotary drying drum wall by a thin layer of suitable heat exchange fluid confined to the annular space between the coaxial drum walls. A low melting point bismuth/lead/tin alloy is the preferred heat exchange fluid.

Abstract: When scrap tires containing metal wire are incinerated in the scrap tire combustion furnace at a temperature of 400.degree. to 950.degree. C. in the presence of oxygen, CO.sub.2 and water vapor is implemented, waste flons soaked into cloths, for example, are loaded together with scrap tires into the furnace. In this method, waste flons can be decomposed nearly 100%, under the reactions of hydrocarbons as well as a slight amount of sulfur which are both generated when the scrap tires burns.

Abstract: A clothes drying apparatus has the general shape of a drying sleeve with sufficient length and width to hold an article of clothing for drying. The article of clothing is placed in the drying sleeve and synch lines on each end of the drying sleeve are closed thereby retaining the article of clothing inside of the drying sleeve. The drying sleeve can then be hung out to dry.

Abstract: A guillotine-style door closure system for a furnace comprises a furnace opening with a door frame on a vertical side of the furnace; a furnace door adapted to mate with the frame; a left closing chain mounted, at one end, to the vertical side of the furnace approximate the left jamb and the lintel of the frame, and mounted, at its other end, to a left pin extending from the furnace door approximate the left vertical side of the door, below the vertical centerline of the door and distal from the rear vertical side of the door; and a right closing chain mounted, at one end, to the vertical side of the furnace approximate the right jamb and lintel of the frame, and mounted, at its other end, to a right pin extending from the furnace door approximate the right vertical side, below the vertical centerline and distal from the rear vertical side of the door.

Abstract: A system for waste-to-energy conversion of municipal solid waste and urban forest residue includes as a central element a vortex-cyclone suspended combustion zone furnace, supplied via a shredder and a rotary preheat kiln, and followed by a waste heat boiler. The combustion furnace takes the form of a horizontal tunnel-like structure into which solid waste material from the preheat kiln is introduced near an entry end, with separate exit ports for hot gas and ash at an exit end. The furnace has spaced horizontal waterwall tubes, between which forced draft air is injected in a circular pattern aided by vanes, producing a swirling overfire air curtain surrounding the vortex-cyclone suspended combustion zone along the length of the furnace. In the manner of a cyclone separator, a cylindrical structure surrounds the central exhaust gas opening, and extends from the exit end wall into the combustion chamber to a circular leading edge.

Abstract: For cooling food products in a container, a distributor pipe for supplying liquid carbon dioxide extends into an interior of the container and a plurality of nozzles are arranged on the distributor pipe so that liquid carbon dioxide is discharged from the nozzles in jets extending substantially parallel to a longitudinal axis of the distributor pipe and against one another to collide at the midpoint between two neighboring nozzles.

Abstract: An improved pulverized coal burner that reduces the formation of nitrogen oxides. The coal burner includes fuel splitters that separate a mixture of primary air and coal into a plurality of streams while the mixture is discharged through a diffuser having a plurality of partially open areas and a plurality of blocked areas. After passing through the diffuser, the plurality of streams are discharged into a furnace to be burned. The plurality of partially open areas and blocked areas are created by removing sections of the diffuser and replacing the removed sections with fuel spiders. Creation of these discrete streams delays mixing with secondary air. Because primary air is supplied in sub-stoichiometric quantities, the coal in these split streams will be burned under fuel-rich conditions for the first 100 to 200 milliseconds of combustion, until the delayed mixing of secondary air occurs. Combustion in a fuel-rich environment retards formation of nitrogen oxides in two ways.

Abstract: An exhaust vent guard for protecting the exit area of an air vent conduit includes an upper hood portion and integrally therewith a lower cage portion. The upper hood portion includes a top wall, a pair of sidewalls, and a front wall, which collectively provide a weather barrier to prevent the entry of rain, snow, and other debris into the air vent conduit. The lower cage portion includes a bottom wall, a pair of sidewalls, and a front wall, each of which are constructed and arranged with a plurality of openings for permitting the free flow of air through the lower cage portion while at the same time being small enough to prevent the nesting of birds inside of the exhaust vent guard. In a related embodiment, a similarly configured exhaust vent guard is used in combination with a vent frame and a pair of flow-control louvers which are pivotally mounted into the vent frame.

Abstract: A method for drying a fibre web comprising passing the fibre web with at least one paper machine fabric between two bands which move in parallel. The bands have a good thermal conductivity and are impermeable to air. The fibre web and paper machine fabric are passed between the bands so that the fibre web is in contact with a first band to be heated and the paper machine fabric is in contact with a second band to be cooled. The method includes heating the first band with pressurized hot water, and cooling the band to be cooled with cooling water having substantially the same pressure and a lower temperature than the hot water.

Abstract: An open loop, air refrigerant heat pump process is set forth for producing a refrigerated atmosphere inside an enclosed space, in particular the enclosed space of a food freezer. A key to the present invention is that it uses a portion of the cold expander discharge to cool the air feed to the expander, prior to using said portion as a regeneration gas for the front end, adsorbent-containing drier. This is key because it allows one to eliminate the prior art's need to recover refrigeration from the air exiting the enclosed space which, more importantly, allows one to eliminate the prior art need to remove any cryogenically generated ice that the air picks up inside the food freezer.

Abstract: A combustion furnace for combustible rubbish, allowing to utilize the generated heat for everyday purposes, wherein the rubbish is burned in several combustion chambers inside a main body, allowing for heating a cooking device, and the generated smoke flows through a separating plate below the combustion chambers, is dispersed by a sprinkling device and passes through a filter, such that it will not pollute the environment.

Abstract: A lifting device for engaging lifting openings in a splitter plate of a heat transfer element basket assembly has first and second opposed hook bodies. Each hook body has an upper engagement portion and a lower portion offset from the upper portion. The hook bodies further define hook openings. A fastener releasably fastens the upper portions of the hook bodies wherein the hook openings define a through-bore and the lower portions define a splitter plate gap. Each hook body further defines a hook portion extending from the offset portion forward the other hook body and across the splitter plate gap. The hook portions are adapted to extend through the lifting openings of the splitter plate when the hook bodies are fastened by the fastener.

Abstract: The arrangement for treating combustion residues of a combustion installation comprises an ash discharger into which opens a fall shaft, into which the solid combustion residues fall from a furnace grate. The ash is conveyed from the ash discharger into the discharge shaft via a diagonally ascending push-out chute by a push-out ram whose operating rate is so adjusted that the ash is piled up in the fall shaft in a tower formation reaching above the liquid level. Fresh water or a chemical is introduced into the discharge shaft via an inlet. The ash discharger water present in the ash discharger and charged with fine particles is drained into a hermetically sealed settling tank via a draw-off duct. Ash discharger water, with which a chemical can be mixed via another line, is fed from the upper region of the settling tank by a pump via a return line to spray nozzles which are arranged in the upper region of the fall shaft.

Abstract: The present invention relates to improved drying techniques which increase the capacity and efficiency of agitated pan type dryers. In particular, the present invention relates to a conical screw type mixer/dryer apparatus and method for aggressive convective drying of hard to dry chemical compounds, such as pharmaceuticals. The aggressive drying is brought about by creating turbulence within the drying vessel during the drying cycle. Significant reductions in drying cycle times have been achieved.