Abstract: This invention relates to a public works machine equipped with a bucket unloading device. According to the invention, this device comprises an endless member mounted for movement or translation along the jib and comprising blades, a chute disposed under the jib capable of being swept by said blades and a bucket whose section is identical to that of said chute, the shoot-bucket assembly then being completely swept by the blades. The material contained in the bucket is pushed via the shoot onto a conveyer belt which evacuates it to the rear of the machine.