Abstract: A rotary drum configured for the efficient blending, cooling, and screening of granular products having an outer cylindrical shell, an intake end, and an exit or discharge end. The rotary drum is normally rotated at a predetermined speed by a conventional drive package. Disposed on an inner surface of the cylindrical shell is a plurality of compound helical flights and scoops or lifts, configured to blend granular product as it cascades from the intake end to the discharge or exit end of the rotary drum. A coaxially disposed cylindrical air passage adjacent the discharge end of the rotary drum, comprising an inner cylinder, that directs a counter flow of cooling air through the rotary drum towards the intake end, for cooling the cascading granular product as it approaches the screening segment of the rotary drum.

Abstract: A rotary drum configuration for the efficient blending, cooling, and screening of granular products having an outer cylindrical shell, an intake end, and a discharge end. The rotary drum is normally rotated at a predetermined speed by means of a conventional drive package. Disposed on an inner surface of the cylindrical shell are a plurality of compound helical flights and scoops, configured to blend granular product as it cascades from the intake end to the discharge end of the rotary drum.

Abstract: A rotary drum configuration for the efficient blending, cooling, and screening of granular products having an outer cylindrical shell, an intake end, and a discharge end. The rotary drum is normally rotated at a predetermined speed by means of a conventional drive package. Disposed on an inner surface of the cylindrical shell are a plurality of compound helical flights and scoops, configured to blend granular product as it cascades from the intake end to the discharge end of the rotary drum.

Abstract: A tumbling unit such as a casting shake-out unit, rotary media drum, sand reclaimer or the like, is provided. The tumbling unit includes a cylindrical outer shell and a cylindrical inner shell. The inner liner is formed of a series of interfitting segments. The segments each have an inner surface, an outer surface, side edges, a front edge, a back edge, and a vane extending from the outer surface. The side edges of the segments have a groove formed therein which extends the length of said the edges. The grooves of neighboring segments define channel between the segments. A pin or liner lock key is received in the channel to urge the neighboring segments apart to form a tight interfit among the segments in a row of the liner. The retaining pin has a body having side surfaces, a top surface, and a bottom surface. A hole extends through the pin body and receives a dowel, which is sized to extend from opposite sides of said pin body.

Abstract: A tumbling unit such as a casting shake-out unit, rotary media drum, sand reclaimer or the like, is provided. The tumbling unit includes a cylindrical outer shell and a cylindrical inner shell. The inner liner is formed of a series of interfitting segments. The segments each have an inner surface, an outer surface, side edges, a front edge, a back edge, and a vane extending from the outer surface. The side edges of the segments have a groove formed therein which extends the length of said the edges. The grooves of neighboring segments define channel between the segments. A pin or liner lock key is received in the channel to urge the neighboring segments apart to form a tight interfit among the segments in a row of the liner. The retaining pin has a body having side surfaces, a top surface, and a bottom surface. A hole extends through the pin body and receives a dowel, which is sized to extend from opposite sides of said pin body.

Abstract: The present invention relates to a rotary lump crusher/reclaiming drum for reclaiming lump materials such as aggregates, chemically-bonded sand lumps, dross, ferrous and non-ferrous scrap and slag. The rotary drum has an outer cylinder concentric with an inner cylinder both of which rotate simultaneously, the latter containing treatment compartments to reduce the lumps to smaller pieces which are in turn reduced to reclassifiable particulate matter in preparation for resuage.

Abstract: A casting shake-out unit has an outer cylinder and an inner cylinder. The inner cylinder is made of a plurality of interfitting segments which interlock and cooperate with each other to prevent a segment from falling out of the completed inner cylinder. Each segment includes tongues extending from opposing edges of the segment's body and pockets formed in the body. The pockets of one segment receive at least a part of the tongue of a neighboring segment.

Abstract: A tumbling mill includes an inlet area, an outlet area, and a tumbling area between the inlet and outlet areas. The mill is formed as a tri-cyclical member having an outer cylinder extending along the tumbling and outlet areas, and an inner cylinder concentric with the outer cylinder and extending through the inlet, outlet and tumbling areas. The inner and outer cylinders define a space therebetween. The inner cylinder is perforated to allow sand to fall into the space between the inner and outer cylinders. The inner cylinder includes an inner helical vane to urge sand, media, and castings toward the outlet area, and an outer helical vane to urge sand and media toward the inlet area. A reclassifying screen is provided in the inlet area to classify sand. Sand particles that are sufficiently small passes through the screen and out a chute. Sand particles that are not small enough are recirculated through the tumbling mill to be further broken down.

Abstract: A rotary drum dryer is provided which will dissipate heat from the drum and which will allow the drum to expand. The rotary drum dryer includes an elongate cylindrical drum which rotates on a base and a tire assembly mounted to the drum. The tire assembly includes a band extending circumferencially around the drum and being radially spaced from the drum and a circumferential tire mounted on the band. A plurality of linkage assemblies are spaced around the drum to physically connect the tire assembly to the drum and a plurality of gussets which maintain a desired spacing between the tire assembly and the drum to allow the drum to move relative to the tire assembly. The gussets each include a gusset body having a top edge and a notch formed in the top edge. The gussets act as vanes to dissipate heat from the drum before the heat reaches the tire assembly.

Abstract: The drum incorporates an inner and outer cylinder, having a helical vane located intermediate thereof, with the media drum being supported upon a base and rotated by a drive motor. The drum contains two parts, an entrance segment and an exit segment. At the exit segment, reclaiming media and sand passes into the space between the inner and outer cylinders and is carried to the entrance segment by the helical vanes. At the entrance segment, the media is picked up by a reclaimer which reintroduces the media into the reclaimer to recycle the media.

Abstract: A media drum incorporates an inner and outer cylinder, having a helical vane located generally intermediate thereof, with the media drum being supported upon a base, and its bearings, and motivated into rotation by a drive motor. The media drum integrally contains two parts, an entrance segment, and an exit segment. At the exit segment a cooling component, in the form of a liquid spray, is either directed into the drum, or into a jacket surrounding the exit segment of the drum, for cooling of the castings, media sand, abrasive members, to achieve a rapid cool down of these various components during usage of the apparatus. A reservoir is provided for collecting any excess liquid coolant, and a steam jacket surrounds the drum for collecting any generated steam for its removal.

Abstract: A sand reclaiming drum incorporating a single cylinder, or structured having a dual cylinder reclaimer. The sand reclaiming drum comprises four sections: an inlet section into which mold castings are introduced, first and second inner sections, and an outlet section. The inlet and first inner sections include helical rifling which urge the castings forward. The first and second inner sections include plates which greatly agitate the castings to loosen embedded sand therefrom. The outlet section includes a plurality of perforations along its length through which the sand may exit the drum and ejection means to urge the sand free castings from the reclaimer.

Abstract: A dust collecting hood for use in conjunction with a sand cooling, blending, reclaiming of other rotary drum, within the casting industry, the hood incorporates an upper and lower section, either of unitary or separate construction, the upper section including a discharge opening which cooperates with a vacuum pump to draw air through the hood, and the proximate discharge end of the rotary drum, while the lower section of the hood provides a discharge opening for removal of the mold sand from the drum, the hood, at this collection location, while further incorporating ports through which air may pass for forming the air curtain across the associated hood and drum, for removal of said fines, dust, and other deleterious particles from the ambient air.

Abstract: A dual sand reclaimer comprising a drum formed of an inner and outer cylinder, substantially along its length, the drum being formed into three segments, an entrance segment wherein the castings are initially deposited for removal of its green mold sand, the inner cylinder thereat being perforated to provide for separation of the sand from its castings, a middle segment wherein the castings and internally arranged mold sand are subjected to abrasive members that remove any core sand, and a third or discharge segment from which the castings exit, and having an inner cylinder thereat perforated to provide for the passage of the core sand and abrasive members therethrough, with the sand being screened for removal thereat, while the abrasive members are returned by vanes arranged intermediate the inner and outer cylinders of the middle segment of the drum for a return to the leading end of the segment for reusage.

Abstract: This invention relates to the formation of a resilient retention rod or pin that inserts intermediate a pair of liner segments of a tumbling or casting shake-out unit, and which rod is formed having a series of inherent angular bends provided along its length, and being constructed of resilient material, so that as the rod is forcefully inserted in place for retaining a pair of adjacent liner segments together, the tendency of the resilient rod to achieve its steady state angularly bent condition has a tendency to continuously force a pressure against adjacent segments to assure their tightness in interfitting together for forming the liner or cylinder for a casting shake-out unit or the like.

Abstract: In a casting shake-out unit comprising a longitudinal cylinder being approximately horizontally disposed is driven in rotation by means of a motor, the cylinder includes a concentric inner cylinder formed as an apertured surface having rifling arranged helically upon its interior surface, with integral vanes helically arranged intermediate the inner apertured cylinder and the outer longitudinal cylinder. As sand encrusted castings are deposited into the cylinders, and while they are rotated, said castings are tumbled and urged to move longitudinally of the apertured cylinder while the loosened mold sand falls therethrough, and is likewise moved longitudinally of the apertured cylinder while the loosened mold sand falls therethrough, and is likewise moved longitudinally of the outer cylinder to a location for collection.