Abstract: Claimed is a trolling device for use on a moving boat. The trolling device utilizes a continuous looped guide groove, which spirals around a driveshaft, and has a connecting loop that joins the first spiral with a second spiral that then travels back down the driveshaft to a second connecting loop. As the driveshaft continuously rotates in one direction, a travel pin with an attached fishing lure moves back and forth along the driveshaft. One or more speed change zones are incorporated into the driveshaft as regions of changed pitch in the spiral guide grove. The speed change zones result in the speed of the lure changing as it passes through the water, so that the lure will have an occasional burst of speed, and then slow down during its travel through the water.

Abstract: Claimed is a trolling device for use on a moving boat. The trolling device utilizes a continuous looped guide groove, which spirals around a driveshaft, and has a connecting loop that joins the first spiral with a second spiral that then travels back down the driveshaft to a second connecting loop. As the driveshaft continuously rotates in one direction, a travel pin with an attached fishing lure moves back and forth along the driveshaft. One or more speed change zones are incorporated into the driveshaft as regions of changed pitch in the spiral guide grove. The speed change zones result in the speed of the lure changing as it passes through the water, so that the lure will have an occasional burst of speed, and then slow down during its travel through the water.