A spiral conveyor having a self-stacking conveyor belt positively driven on a helical path up or down a drive drum. Stacker supports at opposite sides of the belt support the tiers above. Locking structure on the outer stacker supports interlock consecutive tiers. Drive members on the drive drum have a belt entrance segment and a positive-drive segment. The positive-drive segment has ridges that engage the inner side of the belt without slip. The entrance segment provides a smooth reduction in drum diameter without drive ridges to multiple belt tiers entering the helical path.

A roller modular conveyor belt module for motorized continuous conveyors includes, first and second hinge elements extending from a main body along opposite directions orthogonal to the first direction and spaced from each other. Each of the hinge elements has a through hole with axis parallel to the first direction and being coaxial to each other to receive a respective hinge pin. The first hinge elements are adapted to interpose to second hinge elements of another module with through holes coaxial to each other to receive a hinge pin articulating therebetween. In the space between adjacent hinge elements, there is at least one roller passed through by an axial hole arranged coaxially with the through holes of the adjacent hinge elements delimiting the space. The module includes at least one bushing having an end portion inserted in the through hole, and extending through the roller axial hole.

A roller modular conveyor belt module for motorized continuous conveyors includes, first and second hinge elements extending from a main body along opposite directions orthogonal to the first direction and spaced from each other. Each of the hinge elements has a through hole with axis parallel to the first direction and being coaxial to each other to receive a respective hinge pin. The first hinge elements are adapted to interpose to second hinge elements of another module with through holes coaxial to each other to receive a hinge pin articulating therebetween. In the space between adjacent hinge elements, there is at least one roller passed through by an axial hole arranged coaxially with the through holes of the adjacent hinge elements delimiting the space. The module includes at least one bushing having an end portion inserted in the through hole, and extending through the roller axial hole.

The technical field of engineering chains, specifically chains for the transport of raw material is provided, which purpose is to reduce the number of moving parts usually used in engineering chains with outboard wheels, without sacrificing optimal performance. To this end, it provides a straight plate chain mechanism with external and internal pitch, with a ratchet mechanism between the pitches, making the chain self-supporting and allowing it to only rotate in the internal direction when it has direct interaction with the sprocket, thus considerably reducing the possible catenaries.

The technical field of engineering chains, specifically chains for the transport of raw material is provided, which purpose is to reduce the number of moving parts usually used in engineering chains with outboard wheels, without sacrificing optimal performance. To this end, it provides a straight plate chain mechanism with external and internal pitch, with a ratchet mechanism between the pitches, making the chain self-supporting and allowing it to only rotate in the internal direction when it has direct interaction with the sprocket, thus considerably reducing the possible catenaries.

Modular belt link having a body section, said body section having a forward side and a rearward side, and lateral sides connecting said forward and rearward sides, where said body section has a thickness between a top surface and a rear surface, and further that means are provided along said forward and rearward sides for connecting the modular belt link to other substantially identical modular belt links arranged before and after said modular belt link, characterized in that a plurality of apertures through the thickness are provided, suitable to receive and retain a ball or roller rotatably in each aperture, such that the balls or rollers extend or may be brought to extend above the top surface of the body section where a first plurality of apertures are separated by a first distance x and one or more second apertures are provided spaced from said first plurality of apertures, where when more second apertures are provided they are separated by a second distance y, and where on the bottom surface at least partly into the thickness of the body section one or more cavities suitable to receive sprockets is/are arranged in between at least some of the apertures arranged with the second distance y, and where the first distance x is too short to allow cavities suitable to be engaged by sprockets.

Modular belt link having a body section, said body section having a forward side and a rearward side, and lateral sides connecting said forward and rearward sides, where said body section has a thickness between a top surface and a rear surface, and further that means are provided along said forward and rearward sides for connecting the modular belt link to other substantially identical modular belt links arranged before and after said modular belt link, characterized in that a plurality of apertures through the thickness are provided, suitable to receive and retain a ball or roller rotatably in each aperture, such that the balls or rollers extend or may be brought to extend above the top surface of the body section where a first plurality of apertures are separated by a first distance x and one or more second apertures are provided spaced from said first plurality of apertures, where when more second apertures are provided they are separated by a second distance y, and where on the bottom surface at least partly into the thickness of the body section one or more cavities suitable to receive sprockets is/are arranged in between at least some of the apertures arranged with the second distance y, and where the first distance x is too short to allow cavities suitable to be engaged by sprockets.

A loading apparatus for use with tubular food articles. The loading apparatus comprises an input conveyor configured to convey the tubular food articles, an indexing conveyor positioned beneath the input conveyor and configured to operate in an intermittent motion, and a curved end member positioned in spaced arrangement to the input conveyor to permit the tubular food articles to pass between the input conveyor and the curved end member such that the curved end member retains the tubular food articles on the input conveyor. The input conveyor is configured to transfer the tubular food articles from the input conveyor directly to the indexing conveyor using gravity from a space between the input conveyor and the curved end member.

A loading apparatus for use with tubular food articles. The loading apparatus comprises an input conveyor configured to convey the tubular food articles, an indexing conveyor positioned beneath the input conveyor and configured to operate in an intermittent motion, and a curved end member positioned in spaced arrangement to the input conveyor to permit the tubular food articles to pass between the input conveyor and the curved end member such that the curved end member retains the tubular food articles on the input conveyor. The input conveyor is configured to transfer the tubular food articles from the input conveyor directly to the indexing conveyor using gravity from a space between the input conveyor and the curved end member.

A splice system for a conveyor belt system includes a plurality of spaced tractive rods; a plurality of rows of flat wire pickets transversely disposed with respect to a direction of travel and interconnecting the plurality of spaced tractive rods, wherein at least one of the rows of flat wire pickets includes an outer edge link on each end thereof, the outer edge link including a reverse-turn closed edge on an outer side thereof; and wherein movement of at least one of the plurality of rods is restricted by the reverse-turn closed edge on the outer edge link.