There were also problems with the inclined plane. Engineer William Rich Hutton was instrumental in getting the inclined plane built. Construction of the Hay inclined plane was completed in 1793. Escalators and slanted conveyor belts are also forms of inclined plane. These views are typically used when an object contains some sort of inclined plane. Beside Foxton locks is the site of a long-abandoned inclined plane boat lift. Two other simple machines are often considered to be derived from the inclined plane. CamTran operates the local bus service and the Johnstown Inclined Plane. The device had an inclined plane over pulleys. With the inclined plane, the problems stemmed from a miscalculation. The data from the inclined plane experiments were used to calculate the expected horizontal motion. The statue incorporates Stevin's inclined plane diagram. The screw consists of a narrow inclined plane wrapped around a cylinder. The wedge and the inclined plane (ramp) were known since prehistoric times. They then planned to make an inclined plane, much like the Morris Canal.