Various embodiments relate to a rivet element supply unit for providing rivet elements, wherein the rivet element supply unit comprises a rivet element provision unit and a handling unit, wherein the rivet element provision unit for conveying the rivet elements comprises a spiral conveyor having a longitudinal axis and a spiral, which extends around the longitudinal axis, wherein the longitudinal axis is inclined to the direction of gravity, wherein the rivet element provision unit has a pick-up region to which the spiral conveyor supplies rivet elements and from which the handling unit picks up the rivet elements for transporting to a rivet element receptacle.

An apparatus (10) for delivering particulate material (50) to a flowing stream of frozen confectionery material (40) to provide a single serving to a consumer, the apparatus comprising: a dispenser for the particulate material; and a dispenser for providing the flowing stream of confectionery material flowing vertically downwards from an outlet (22), the flowing stream having an outer surface; wherein the dispenser for the particulate material comprises a particulate material deposition device (12) for depositing the particulate material at a common particulate deposition location (30), and a plurality of chutes (26), each chute arranged to catch deposited particulate material and redirect it in a substantially horizontal direction to collide with the outer surface of the flowing stream of frozen confectionery, each chute (26) beginning at the common particulate deposition location (30) and spreading out from each other to each deposit the particulates at a different radial location around the flowing stream of frozen confectionery.

Various embodiments relate to a rivet element supply unit for providing rivet elements, wherein the rivet element supply unit comprises a rivet element provision unit and a handling unit, wherein the rivet element provision unit for conveying the rivet elements comprises a spiral conveyor having a longitudinal axis and a spiral, which extends around the longitudinal axis, wherein the longitudinal axis is inclined to the direction of gravity, wherein the rivet element provision unit has a pick-up region to which the spiral conveyor supplies rivet elements and from which the handling unit picks up the rivet elements for transporting to a rivet element receptacle.

An apparatus (10) for delivering particulate material (50) to a flowing stream of frozen confectionery material (40) to provide a single serving to a consumer, the apparatus comprising: a dispenser for the particulate material; and a dispenser for providing the flowing stream of confectionery material flowing vertically downwards from an outlet (22), the flowing stream having an outer surface; wherein the dispenser for the particulate material comprises a particulate material deposition device (12) for depositing the particulate material at a common particulate deposition location (30), and a plurality of chutes (26), each chute arranged to catch deposited particulate material and redirect it in a substantially horizontal direction to collide with the outer surface of the flowing stream of frozen confectionery, each chute (26) beginning at the common particulate deposition location (30) and spreading out from each other to each deposit the particulates at a different radial location around the flowing stream of frozen confectionery.

An air cart has a drop chute for conveying an agricultural product such as seed, from a metering device to a venturi portion of a product conveyance tube. The drop chute has a contoured downstream sidewall resulting in changes in drop chute width which introduce vortices providing an enhanced product flow. The downstream sidewall has an inward sloping region reducing the drop chute width beginning closely adjacent the metering device and continuing down about one-third the way from the metering device to the conveyance tube, and an abrupt corner causing an increase in drop chute width near the product conveyance tube followed by a curved region creating a gradual further increase in width terminating adjacent to the product delivery tube. A large low speed vortex is created near the inward sloping region and a small strong vortex is created adjacent the curved region.

An air cart has a drop chute for conveying an agricultural product such as seed, from a metering device to a venturi portion of a product conveyance tube. The drop chute has a contoured downstream sidewall resulting in changes in drop chute width which introduce vortices providing an enhanced product flow. The downstream sidewall has an inward sloping region reducing the drop chute width beginning closely adjacent the metering device and continuing down about one-third the way from the metering device to the conveyance tube, and an abrupt corner causing an increase in drop chute width near the product conveyance tube followed by a curved region creating a gradual further increase in width terminating adjacent to the product delivery tube. A large low speed vortex is created near the inward sloping region and a small strong vortex is created adjacent the curved region.

An air cart has a drop chute for conveying an agricultural product such as seed, from a metering device to a venturi portion of a product conveyance tube. The drop chute has a contoured downstream sidewall resulting in changes in drop chute width which introduce vortices providing an enhanced product flow. The downstream sidewall has an inward sloping region reducing the drop chute width beginning closely adjacent the metering device and continuing down about one-third the way from the metering device to the conveyance tube, and an abrupt corner causing an increase in drop chute width near the product conveyance tube followed by a curved region creating a gradual further increase in width terminating adjacent to the product delivery tube. A large low speed vortex is created near the inward sloping region and a small strong vortex is created adjacent the curved region.