Abstract: A roaster and method for roasting utilizing a tangential flow reducing structure which directs and guides airflow from a blower device into a roasting vessel with minimal swirl and circular flow. The tangential flow reducing structure is preferably one or more baffles, and is preferably located within a plenum in the base of the roaster. More preferably, the roaster has a number of substantially vertical baffles channeling airflow into a vertical and reduced-swirl flow entering the roasting vessel. The roaster also preferably has a unique connection between the roasting vessel and a base upon which the roasting vessel rests, with a flat washer-shaped gasket maintaining a fluid tight seal between the roasting vessel and the base. To tighten the seal, the roaster also preferably includes a cover which is pivotably attached to a support structure supporting the cover in position over the roasting vessel when the roasting vessel is on top of the base.

Abstract: An apparatus for drying cylindrical and/or parallelepiped bales of moist forage including an assembly of horizontally extending balanced isobaric ventilation chambers in overlying relationship. A lower ventilation chamber has blowing apertures on an upper face and is able to withstand the weight of the bales positioned directly on it in correspondence with the relative blowing apertures. The upper ventilation chamber has corresponding blowing apertures on a lower face whereas the intermediate ventilation chamber has corresponding blowing apertures on an upper face and a lower face and is able to withstand the weight of the bales positioned directly on it in correspondence with the relative upper blowing apertures. The ventilation chambers are movable vertically in two directions.

Abstract: A footwear drying apparatus, comprises a housing having vertical front, rear and side walls, a top section, a drying section, and a base section. A fan is mounted within the top section, so that to blow air to the drying section. A heater is mounted adjacent to the fan, so that to heat air. A thermostat is mounted adjacent to the heater. At the top of the apparatus is mounted a control console having a timer, a fan switch, a heater switch and a thermostat knob. Air inlets are formed in the top section. An air outlet is mounted within the base section. A mud screen is fixed at the entrance of the air outlet, so that to prevent from mud entering into the air outlet. An air filter is mounted at the exit of the air outlet. A door is secured to the front wall, so that to provide access to the drying section. A mud collector is removably mounted at the bottom of the drying section, so that to collect mud from unclean footwear.

Abstract: An apparatus for airing grains stored in bulk on a floor of a depot, including a tunnel comprising a duct made of half cylindrical shaped corrugated sheets. The corrugations are approximately sine-wave shaped and provide adequate reinforcement for supporting the weight of grain stored on top. Aprons anchor the duct to the floor, and the duct is connected to a blower which supplies air to the duct. The duct has an inner surface, an outer surface, and two longitudinal edges, with each of the longitudinal edges extending substantially parallel to one another and bear on the respective aprons anchored to the floor. The duct is provided with air outlet openings for injecting air into the grain, wherein the openings are located adjacent or near the longitudinal edges of the duct. Each apron comprises a substantially horizontal wing for anchoring the apron to the floor, thereby forming an air channel between the floor and the inner surface of the duct.

Abstract: The invention relates to a personal or communal drying cubicle (1), which comprises an outer wall (2) provided with an opening (3) which can be connected up to a duct for supplying drying air, and an inner wall (4) pierced with outlet orifices (7) for distributing the drying air inside the drying cubicle (1), the outer and inner walls (2, 4), which have the shape of a portion of a cylinder, are arranged one with respect to the other in such a way as to delimit between them an internal space (6) with a substantially crescent-shaped transverse section in order to obtain a uniform distribution of the drying air through the outlet orifices (7) with a minimum drop in pressure.

Abstract: A storage system with ambience conditioning facilities includes a desiccator for removing moisture from air and promoting convection, thereby maintaining articles stored therein in an optimum state for a long period of time. The environment maintained has stable humidity, is free of contaminants and suppresses aging of articles by humidity and microbes.

Abstract: A conveyor oven is capable of heating precisely and uniformly an article to be baked as the article is conveyed through the oven at a designated speed. Precise and uniform heating is promoted by 1) a combination supply/return duct assembly positioned above the conveyor and configured to promote uniform airflow towards the upper surface of the conveyor, and 2) discharge orifices configured to further promote uniform airflow from the supply ducts without generating whistling or other unpleasant noises. The arrangement of this supply/return duct assembly, incorporating both supply and return ducts in the same plane, also promotes a low profile oven--an important consideration in applications in which minimizing space is a priority. The profile of the oven is reduced further by placing the heating element beneath the conveyor and by configuring supply and return passages to circulate air between the heat source and the supply/return duct assembly using minimal space.

Abstract: A wood drying system to eliminate the discharge of liquid kiln water includes a kiln which is heated to dry a batch of wood, a basin to collect the water driven from the wood, and an evaporator in which the collected water is converted into steam. The steam is provided to the kiln to balance the drying and alleviate the splitting, warping, etc. caused by over drying. The steam is ultimately vented harmlessly into the atmosphere to effectively eliminate any discharge of the kiln water as a liquid.

Abstract: A dryer appliance for demoisturizing a moisture sensitive item such as an electronic hearing aid, tooth brush, or the like, having a housing with a removable closure cap or door for providing a substantially sealed chamber and access thereto, a desiccant component mounted in the chamber, wall means substantially dividing the chamber into first and second regions, a support in the chamber for supporting at least one item within the first region, one or more passages interconnecting the first and second regions for providing a gas flow circulation path therethrough, gas moving and heater means mounted in the chamber, the circulation path of air in the chamber being such as to bring the air into recirculating contact with the gas moving and heater means and the item for a prescribed period of time to demoisturize the item.

Abstract: An apparatus for warming towels, or other articles. The apparatus includes a cabinet having an internal vertical wall that divides the cabinet into a warming chamber and a second chamber. A tubular rack extends generally horizontally across the warming chamber and is adapted to support a towel, or other article to be warmed. An open inlet end of the rack extends through the interior wall. An integral air supply unit is located within the second chamber and includes a motor driven fan or blower and a pair of discharge channels are connected to the discharge side of the fan. The upper end of one channel registers with the inlet of the rack, while the open upper end of the other channel communicates with the upper end of the warming chamber. The air discharge unit is removably connected within the second chamber in a manner to cause registry of the upper end of the first channel with the inlet of the rack.

Abstract: The present invention is intended to artificially break pit membranes in cell membranes of cells constituting wood and then to readily attain dryness of the wood. In view of the fact that one pit or the other pit of pits in the form of a pair is blocked with the torus 1 in felled wood to cause poor removal of water in cells, it is intended to prevent the blockage of the pit membrane, i.e., to break the pit membrane per se, thereby facilitating easy escapement of water in cells after the breaking. In the present invention, wood fuel is burned, and subject wood is allowed to stand in a treatment chamber filled with smoky wood gas generated by the combustion for a predetermined period of time, to expose the subject wood to far-infrared radiation and components contained in the wood gas.

Abstract: A multipurpose dryer which can serve as a household drying center to provide versatile drying function for a wide variety of clothing, fabric articles and other household goods. A cabinet has a heating chamber located at the bottom of the cabinet for generating forced and heated air as drying medium. There is a heated air chamber to receive and distribute heated air to a drying chamber located below the top wall of the cabinet and above the heated air chamber. There are hollow air ducts attached to the side walls of the cabinet and a perforate heat diffusion plate above the heated air chamber for evenly distributing heated air into the drying chamber. A versatile support means is disposed in the drying chamber for hanging clothes, draping large size or bulky goods, or supporting a wire basket for holding delicate drying goods. The clothes and goods are dried without tumbling, thus avoiding fraying or wrinkles.

Abstract: Apparatus for drying articles, particularly people, comprises a cubicle defining a drying space and one or more air impellers arranged to produce an air flow within the drying space having a swirling or vortex motion. Preferably the air is recirculated, and the recirculated air is treated, for example, heated, dried and cleaned.

Abstract: A far infrared radiation heater 33 is disposed on the back of a ceiling of a drying chamber 11. The inside of the drying chamber 11 is evenly heated by the heat emitted from the far infrared radiation heater 33. The drying chamber 11 is provided with air charge means 16 and air exhaust means 17 each communicating with the inside thereof. Outside air is introduced into the drying chamber 11 by means of the air charge means 16. On the other hand, the air exhaust means 17 continuously maintains the inside of the drying chamber 11 in a state of reduced pressure. Thus, objects to be dried which are placed in the drying chamber are dried by heating under reduced pressure while continuously introducing fresh air. Therefore, the present invention provides a system for drying objects to be dried whereby not only can dried products be produced within a short period of time but also the flavor is satisfactorily retained in the dried products.

Abstract: A dryer appliance for demoisturizing a moisture sensitive item such as an electronic hearing aid or the like, having a housing with a removable cap for providing a substantially sealed chamber and access thereto, a desiccant component mounted in the housing and substantially dividing the chamber into first and second regions, a support in the chamber for supporting at least one item within the first region, one or more passages interconnecting the first and second regions for providing a gas flow circulation path therethrough, the circulation path being (a) gas flow into contact with and through the desiccant component, (b) then into and thru the first region for contact with the item, (c) then thru the passage into the second region, and (d) then again into contact with the desiccant component to continue the circulation, and a gas moving mechanism in the chamber for forcing and maintaining the gas flow circulation path.

Abstract: An apparatus supplies steam into a silo via holes provided in the bottom (3) of the silo and via channels (8) provided below the silo. The steam supply channel (8) is provided with a feed connection through which the steam to be fed into the silo is passed into the steam supply channel (8). Furthermore, the channel (8) is provided with steam feed nozzles (17) placed under the holes in the bottom (3) of the silo. The nozzle (17) is preferably provided with a mounting flange (21) which is fastened to the lower part of the channel (8), making it easy to remove the nozzle (17).

Abstract: The present invention relates to an apparatus for roasting raw coffee beans which apparatus can instantly roast a small quantity of raw coffee beans according to personal taste and provide a unique taste and fragrance of coffee, and in particular to an apparatus suitable for home use. The apparatus has a roasting vessel for containing raw coffee beans to be roasted. A plurality of air openings are provided for creating a whirling vertical motion to a heated airstream ascending therethrough, whereby the raw beans are roasted and also caused to have their hulls separated and caused to ascend upwardly with the airstream to a hull-receiving vessel.

Abstract: An apparatus and process of cooking potato pieces fluidized in upwardly flowing heated air in an inverted conical cooking chamber to produce hot browned potatoes with a moisture content over 40%. According to the invention the apparatus is provided with a multispeed air blower to provide higher pressure heated air to the bottom of cooking chamber at startup of cooking to overcome jamming of potato pieces; supplemented by mechanically moving a perforated bottom support platform upwardly in the cooking chamber at startup of cooking to push any jammed potato pieces into the upwardly flowing air to assure fluidization.

Abstract: A method and apparatus are provided for detoxicating, aerating, drying and sterilizing clothing articles. A drying chamber is provided which has an inner chamber in which the clothing articles are to be hung. A first intermediate chamber and a second intermediate chamber are provided in the walls defining the inner chamber through which air is caused to flow. A heater is provided for heating air drawn in from the room and, if preferred, a condenser may be provided for removing moisture from the air after it has passed through the inner chamber. Air may be recirculated within the drying chamber by use of the condenser, or fresh air may flow through the condenser to provide a cooling air stream to the condenser, while heated moist air flows separately through the condenser to remove heat and moisture before the air is exhausted back into the room.

Abstract: An apparatus for heat shrinking an envelope of heat shrinkable film into close conformity to a product enclosed within the film envelope includes a housing; a first assembly disposed within the housing for directed heated air to at least a first portion of the film envelope; a second assembly disposed with the housing and operable subsequent to the first assembly for directing heated water onto at least a second portion of the envelope, both causing the envelope to shrink into conformity with the product; an arrangement for drying the product after water has been applied thereto; and an arrangement for circulating the hot water into heat transfer relation with a moving stream of the hot air for enhanced water heating prior to its application to the product.

Abstract: A dishwasher includes a washing chamber where a heater is located. The air within the chamber is circulated by a first fan through a circulation duct. An inlet and an outlet for the outside air is located on the front surface of the dishwasher. The inlet and the outlet are connected by the outside air duct. A heat exchanger is located between the outside air duct and the circulation duct. The outside air is circulated by a second fan from the inlet to the outlet to exchange the heat between the outside air and the inside air.

Abstract: Apparatus for drying utensils comprises a chamber 1 and a gas-fired burner 20, such as a fully premixed burner, for firing into the chamber. Fans 30 blow air into the chamber and deflectors 31 direct air from the fans 30, via openings 43, to mix with the hot gaseous combustion products produced by the burner 20 to provide a hot mixture. A duct portion 7 directs the hot gaseous mixture from the chamber into a drying region 9 and over the utensils which pass through the drying region to be dried. The hot mixture is used to dry the utensils by direct contact.

Abstract: A system for drying a large quantity of wood efficiently, which includes: a wood drying room capable of being sealed; a combustion-gas generator provided with an air-inlet conduit for introducing fresh air for combustion use into a combustion chamber provided in a lower area of the combustion-gas generator; a combustion-gas supplying passage extending from an upper area of the combustion-gas generator to an upper area of the wood drying room; an exhaust-gas discharging conduit extending from a bottom area of the wood drying room to a chimney; a combustion-gas recovery conduit extending from the bottom area of the wood drying room to the combustion-gas generator; and a gas flow-rate control unit provided in at least one of the exhaust-gas discharging conduit and the combustion-gas recovery conduit.

Abstract: The device has a base plate (3) equipped to receive bulk material, composed by one or more gas distribution plates, which has gas outlet openings (10) distributed over the plate surface, further it has gas distribution chambers (6) provided on the bottom side of the gas distribution plates and in contact with the gas outlet openings (10), which are connected to a gas supply line (9) and water-fed spray nozzles (spray cones 12) for moistening the gas, which are distributed over the plate surface underneath the gas distribution plates (6) and abut directly in the gas distribution chambers (6). As a result the gas is moistened only immediately before it flows into the gas outlet openings.

Abstract: A direct-fired kiln for drying lumber having a reversible powered air-mover mechanism for producing air circulation within the interior of the kiln in either of opposite directions. Selectively controlled air withdrawal conduits returning air to a fuel burner outside the kiln are adjusted so that air is always withdrawn from the side of a load within the kiln where circulated air is exiting from the load.

Abstract: An improved coffee roaster (10) for roasting a selected volume of coffee beans in a relatively quick and efficient manner. A roasting cavity (66) is provided for receiving and roasting a selected volume of green coffee beans. A timer (158) is provided for controlling the roasting time. A heating coil (32) is provided for generating heat to roast the coffee beans. A motor (24) drives a fan (30), which forces air through the heating coil (32) and toward the roasting cavity (66). Slots (76) defined by the roasting cavity (66) direct the heated air into the roasting cavity (66) such that the coffee beans are agitated and roasted. Chaff is evacuated with the air through the opening (74) in the top of the roasting cavity (66). A chaff collector (20) is provided for collecting the chaff evacuated while allowing the escape of air.

Abstract: An air treatment plant for food is closed with the exception of an inlet and an outlet opening (3). In the plant, a pressure increase needed for circulating the treatment air tends to produce an air flow in one direction (29) through an inlet or outlet tunnel (20) communicating with the inlet or the outlet opening. The tunnel (20) has an upper wall (21) in which are arranged nozzles (22) directed substantially opposite to said direction (29), and a lower wall (23) formed with openings (24) for evacuating the excess air in the tunnel (20) produced by air jets (30) generated by a fan (27) and emanating from nozzles (22). A method for reducing the air flow in the inlet or outlet tunnel thus comprises the steps of directing a plurality of air jets (30) from the upper boundary surface (21) of the tunnel (20) substantially opposite to said direction (29), and evacuating from the tunnel the excess air produced by the air jets through openings (24) in the lower boundary surface (23) of the tunnel.

Abstract: An apparatus and method is provided to shrink a heat shrinkable film wrapped around a product so as to produce a neat, wrinkle free finished package. As the product is transported along a conveyor path, first a bottom portion of the shrinkable film is shrunk by hot air; second, both side portions of the shrinkable film are shrunk by hot air; and third, the top portion of the shrinkable film is shrunk by warm water. The warm water employed is maintained at a temperature which is lower than that of the hot air so as to avoid wrinkles or damage to the film while efficiently shrinking the film.

Abstract: A drying apparatus for rubber boots and other items comprising hollow housing equipment with open front and rear surfaces, disinfectant spraying equipment a low-temperature dehumidifier connected in free communication with the housing equipment, wherein the housing equipment is partitioned into rows and columns of housing boxes by partition frames and has its bottom surface designed to serve as slit shelves so that the drying apparatus for rubber boots and other items can dry, in particular, rubber boots used at work, or outfits such as golf bags and ski wears at low temperature, which does not damage the material, by forcible air convection and the disinfectant is carried on the air stream and distributed throughout the housing equipment to perform sanitary drying and dehumidification.

Abstract: A clothes drying machine comprising a housing having a drying chamber at the top thereof for drying the clothes hung therein, and an installation chamber at the bottom into which two air fans and a compressor-operated heat exchanger circulation coil are installed to produce heated convection currents circulating through said drying chamber and said installation chamber to an exhaust wherein moisture is carried out of the housing of the machine and thereby permitting dry, hot air currents to be continuously delivered into said drying chamber to dry clothes hung therein.

Abstract: A process, and its related apparatus, for pre-treating corn or other grain, which makes use of exhaust air from a conventional dryer by conveying the exhaust air from the dryer through a heater and into a steeping container. The grain in the steeping container is slowly and evenly pre-treated as air passes through a perforated floor in the steeping container and through the grain or corn, thereby, yielding grain with uniform moisture levels and uniform quality.

Abstract: A gas fired convection cooking oven is provided with an improved air delivery and heat exchange structure for creating within the oven's cooking chamber a recirculating flow of heated air to cook food items supported therein. The structure includes a combustion box adapted to receive hot products of combustion from a gas burner, and extending into the cooking chamber through a lower portion of a vertical boundary wall thereof. Removably secured to the combustion box, and extending upwardly along the inner side of the boundary wall is a hollow baffle structure having a front mixing chamber communicating with the interior of the combustion box through spaced apart hollow legs with a discharge opening formed therebetween. Perforated skirt walls extending rearwardly from the mixing chamber define with the boundary wall a fan chamber which surrounds a motor-driven centrifugal fan impeller supported on the inner side of the boundary wall.

Abstract: An assembly for efficiently supplying heated air to an enclosed area for drying the body of a person after bathing. The assembly has particular application for installation in an existing bathing area with a minimum of remodeling and with virtually all components being installed behind the walls and ceiling of the bathing area. The assembly includes blower means, duct means and heating means of special construction and location so as to more efficiently supply heated air to the bathing area.

Abstract: A drying chamber for curing products, such as confectionery, loaded on a plurality of rows of stacked trays, the chamber having novel and improved means for evenly supplying, distributing and exhausting conditioned air.

Abstract: A bulk material dryer includes a cabinet with material inlet and outlet openings and air inlet and outlet openings. A conveying system is located in the cabinet for conveying the bulk material therethrough from the material inlet opening to the material outlet opening. An air handling system includes a supply duct subsystem communicating with the air inlet and a return duct subsystem communicating with the air outlet. A blower provides an airstream through the supply duct subsystem and draws air from the return duct subsystem for recirculation through a separator and a heater.

Abstract: A radiant wall drying oven that includes a first wall and a second wall situated in spaced apart relation to define an air conducting passageway. Heated air is supplied to contact the first wall, and a selected amount of heated air is allowed to pass through inlets into the air conducting passageway. Sliding dampers positioned at a predetermined site relative to the second wall control the amount of heated air contacting a portion of the second wall, and consequently regulate the amount of radiant heat emitted by that portion of the second wall.

Abstract: Disclosed is an apparatus for treating furniture that has been wet cleaned or damaged by water or smoke. The apparatus is a tent having a floor, a plurality of sides, and a top, forming an enclosed chamber. The furniture is placed on the floor within the sides, and the top is attached to the sides. Air or ozone is then blown into the chamber to inflate the tent. A plurality of holes in the top of the tent or exhaust boots in the sides of the tent allow the air or ozone to escape from the chamber at a selected rate to maintain the inflation of the tent.

Abstract: An improved kiln for seasoning lumber. The kiln includes an air treatment and circulating assembly adjacent the top wall. The air treatment and circulating assembly includes a series of fan assemblies for circulating air to the lumber stacked within said chamber and means for heating air within said chamber. An exhaust venting system located on the downstream side of the airflow from the lumber stack and on the upstream side of the air treatment and circulating assembly is operable to exhaust moisture-ladened wet air prior to the air passing through the air treatment and circulating system. The kiln also includes an intake air vent located downstream of the air flow from the air treatment and circulating assembly and upstream of the stacked lumber which adds additional outside air to make up that portion of air which is exhausted through the exhaust venting system.

Abstract: Infrared (IR) strip heaters are juxtaposed with convection heaters for simultaneous, independently controlled, combined radiant/convective heating in a conveyor oven. Apertured plates with portions transmissive to IR radiation are interposed between a lower combined heating unit and the cooking path. The IR heaters are preferably gas burners with porous, ceramic or metallic elements, the burners on opposite sides of the cooking path being independently controllable to vary the heat transfer rate to opposite food surfaces. Symmetrical placement of the IR heaters in opposed pairs facilitates use of the conveyor oven as a half oven. An auxiliary burner exhausts directly into the convection air and is cycled on and off to maintain a set temperature during normal operation.

Abstract: An airflow distribution system for discharging air from a thin plenum chamber into a relatively larger space such as a discharge duct or the work chamber of an industrial oven. A distribution plate separating the chambers has discharge openings arranged in pairs, having diagonally oriented louvers sufficiently closely spaced to direct individual air streams toward one another where by combine as a resultant air stream flowing transversely outwardly from the distribution plate. The louvers are illustrated as circular or rectangular tabs partly punched from the plate in forming the discharge openings and are adjustable by bending to vary the direction and volume of the resultant air streams. Among the examples disclosed are industrial ovens and air discharge ducts.

Abstract: A pass-through station for conducting an air flow and for cleaning contaminated surfaces in the station with flowing air and preventing dust particles removed during the decontamination from undesirably reaching the room to be kept clean which is supplied through the pass-through station, includes a passageway for conducting an air flow having a substantially circular air flow cross section, a central axis, oppositely disposed segmental side walls and end surfaces, air chambers alongside the passasgeway having segmental inner walls forming the oppositely disposed segmental side walls, the inner walls of the air chambers having at least one pair of slit-like air outlets formed therein diametrically opposite one another with respect to the central axis, and at least one return air pipe coaxial to the substantially circular cross section at least at one of the end surfaces, for removing an air component corresponding to the inflowing air.

Abstract: A hot air drying system for drying automobile bodies, comprising a drying chamber including a transport device for transporting the automobile bodies having closed bottoms, and a hot air supplying device for supplying hot air into the drying chamber to heat and dry paint applied to the automobile bodies transported by the transport device. The hot air supplying device includes hot air delivery nozzles for directing the hot air toward inside surfaces of the automobile bodies through openings of the automobile bodies.

Abstract: A surface mountable device for drying bathers has an enclosed, vertically or horizontally oriented chamber. An elongated air passageway is located on the front of the chamber. Means for providing drying air is attached to one end of the chamber. The chamber has cross sections which diminish from the end attached to the means for providing drying air to the opposite end. The cover has attachment means for attaching the device to a desired surface, obviating the necessity for recessing the device in the surface.

Abstract: A thermal treatment system includes thermally insulated housing structure in which conditioning plenum structure and distribution plenum structure are disposed. The distribution plenum is disposed adjacent a treatment zone that extends through the housing, and the side of the distribution plenum adjacent the treatment zone defines an open port region that corresponds in dimension to the length and width of the treatment zone. Seal flange structure extends along the edges of the open port region. Conveyer structure for supporting product to be thermally treated is disposed in the treatment zone in juxtaposition to the open port region of the distribution plenum. A series of sealed chamber units, each of which includes an array of nozzle tubes that provide an array of spaced parallel flow passages through the sealed chamber, close the open port region so that the series of sealed chamber units defines a wall of the distribution plenum adjacent the treatment zone.

Abstract: Impingement heating or cooling apparatus that employs an axial flow fan, a plenum, collector and a columnating assembly for directing jets of a temperature controlled gas against the surface of a food product. Means for contacting a first layer of food products with impinging jets of a temperature controlled gas and for simultaneously contacting a second layer of food products with an alternating, convective flow of a temperature controlled gas is also provided.

Abstract: A pulverulent, water-soluble material is agglomerated by projecting the material in a stream through a moistening zone. Means are provided for directing an aqueous gas towards the stream of particulate material in the moistening zone so that the stream of particulate material is surrounded by and confined throughout its path of travel through the moistening chamber as particles of the particulate material are moistened and fused, and means are provided for drying the material. Means are also provided for feeding a cooling gas and/or a stream of steam adjacent to and about the periphery of the stream of material.

Abstract: A coffee roasting apparatus which includes a coffee roaster device which comprises a cylindrical container formed preferably of glass material, a cylindrical drum rotatably extending within the center portion of container, and a heater element disposed within the drum. The drum is formed of wire cloth and driven by a motor. Coffee directly receives radiation heat through the drum. Also, the roaster device is rotatably supported in a housing, which is provided with a cooling space which enables the apparatus to automatically proceed to the discharge of the roasted coffee beans. The interior of the roaster device and the cooling space are connected by an open air circulating pathway. Therefore, the cooling of the roasted coffee beans and the interior of roaster device are separately accomplished with a single air pathway.

Abstract: A pin oven is disclosed for curing coated or decorated can bodies travelling in a serpentine path wtih jets of a curing medium. The pin oven chamber is divided by an interior louver wall into a curing medium supply plenum chamber and a curing chamber. The cans move through the oven on a pin conveyor and jet nozzles in the louver wall are arranged in a pattern for instantaneously confronting moving can bodies with substantially the same number of nozzles for immersing the can bases in a substantially uniform air stream in order to minimize can flip-flopping on the pin conveyor in order to achieve oven speeds in excess of 1000-1200 cans per minute. The louver wall is provided with chambers for uniformly distributing the pressure and velocity of air jets to reduce the tendency of cans to pulsate as they pass through the oven. The louver walls are of modular construction for application of the oven to a variety of can sizes and decorating or coating technologies.

Abstract: A predrying tower serves for heat-treating a vertically conducted length of material. In addition to infrared heating rods arranged on each side of the length of material and over the treatment height of the drying tower, respectively one air supply box is arranged bilaterally of the length of material. The air supply box extends over the height and width of the drying tower, with air slots oriented to direct air toward the length of material. In order to obtain a circulating air system, the air is exhausted above the treatment zone over the width of the length of material and conducted to a fan arranged at the end face of the drying tower, this fan blowing the treatment air downwardly in an air recycle chamber arranged likewise at the end face of the drying tower. An air ramming or air collecting chamber is arranged on the underside of the drying tower over the operating width, wherein the accelerated air is laterally introduced and exits upwardly via a heating device into the air conducting box.

Abstract: A system for drying a large quantity of wood efficiently, which includes: a wood drying room capable of being sealed; a combustion-gas generator provided with an air-inlet conduit for introducing fresh air for combustion use into a combustion chamber provided in a lower area of the combustion-gas generator; a combustion-gas supplying passage extending from an upper area of the combustion-gas generator to an upper area of the wood drying room; an exhaust-gas discharging conduit extending from a bottom area of the wood drying room to a chimney; a combustion-gas recovery conduit extending from the bottom area of the wood drying room to the combustion-gas generator, and a gas flow-rate control unit provided in at least one of the exhaust-gas discharging conduit and the combustion-gas recovery conduit.