A device for conveying lumpy products in such a way that the products are separated from a product stream and are subsequently conveyed further spaced apart uniformly and/or in groups, comprising the following features: - arrangements for supplying the products as a single-row product stream; - arrangements for discharging the separated products spaced apart from one another in a row, wherein the discharging arrangements are arranged immediately after the supplying arrangements in the conveying direction of the products in such a way that the products are transferred from the supplying arrangements directly to the discharging arrangements; - arrangements for conveying the products, wherein the conveying arrangements are arranged in the area of the transfer from the supplying arrangements to the discharging arrangements, and wherein the conveying arrangements have driver arrangements, which are mounted so as to be pivotable in a controlled manner in the conveying direction of the products and which intervene between two successive products in the supplied product stream in such a way that, with a further movement of the conveying arrangements, said driver arrangements guide the products during the transfer from the supplying arrangements to the discharging arrangements in such a way that the products are separated from the supplied product stream and are conveyed further at uniform distances from one another and/or in groups, and are discharged, in a controlled manner in each case; and - joint control arrangements, which cooperate with the supplying arrangements, the discharging arrangements and the driver conveying arrangements and control and match the conveying speeds thereof individually in such a way that the products, following separation thereof from the product stream, are conveyed further spaced apart uniformly and/or selectively in regular groups; characterized by - movable stopper arrangements for the products, wherein the stopper arrangements cooperate with the control arrangements in such a way that the stopper arrangements as necessary are moved into the conveying area of the supplying arrangements in order to cause the products in the supplied product stream to contact one another in the accumulation, and in such a way that the stopper arrangements are subsequently moved out from the conveying area of the supplying arrangements in order to cause the product stream to be conveyed further and to be released for the intervention of the driver arrangements of the driver conveying arrangements between two successive products. - arrangements for supplying the products as a single-row product stream; - arrangements for discharging the separated products spaced apart from one another in a row, wherein the discharging arrangements are arranged immediately after the supplying arrangements in the conveying direction of the products in such a way that the products are transferred from the supplying arrangements directly to the discharging arrangements; - arrangements for conveying the products, wherein the conveying arrangements are arranged in the area of the transfer from the supplying arrangements to the discharging arrangements, and wherein the conveying arrangements have driver arrangements, which are mounted so as to be pivotable in a controlled manner in the conveying direction of the products and which intervene between two successive products in the supplied product stream in such a way that, with a further movement of the conveying arrangements, said driver arrangements guide the products during the transfer from the supplying arrangements to the discharging arrangements in such a way that the products are separated from the supplied product stream and are conveyed further at uniform distances from one another and/or in groups, and are discharged, in a controlled manner in each case; and - joint control arrangements, which cooperate with the supplying arrangements, the discharging arrangements and the driver conveying arrangements and control and match the conveying speeds thereof individually in such a way that the products, following separation thereof from the product stream, are conveyed further spaced apart uniformly and/or selectively in regular groups; - movable stopper arrangements for the products, wherein the stopper arrangements cooperate with the control arrangements in such a way that the stopper arrangements as necessary are moved into the conveying area of the supplying arrangements in order to cause the products in the supplied product stream to contact one another in the accumulation, and in such a way that the stopper arrangements are subsequently moved out from the conveying area of the supplying arrangements in order to cause the product stream to be conveyed further and to be released for the intervention of the driver arrangements of the driver conveying arrangements between two successive products.