Abstract: A skid steer loader having a main frame including a compartment in which an engine and transmission components are contained, ground support wheels extending from the main frame, and a cab mounted on the main frame. The cab includes load bearing side walls extending upwardly from the main frame to define an operators control area therebetween. A boom assembly comprising a pair of arms having material handling front portions and linkage structure that operatively attaches the arms to the cab side walls. The linkage structure includes an upper link coupled to each of the arms and pivotally secured to the cab at a location above the top surface of the wheels, and a lower link which is also pivotally secured to the cab at a location above the wheels.

Abstract: A loader having hydraulically operated boom and bucket mechanisms controllable from the operator seat is disclosed wherein switches sense the presence of the operator in the seat and the buckling of the seat belt. An electronic controller is operably associated with the seat and belt switches and solenoid valves in the hydraulic system and the starter relay. The controller requires proper sequencing of the activation of the seat and belt switches before permitting the starter to be energized, thereby controlling the starting of the loader engine, or permitting the energizing of the hydraulic solenoid valves to control the flow of hydraulic fluid to the hydraulic cylinders for the boom and bucket. The controller also includes a delay associated with the seat switch so that a reactivation of the seat switch within the delayed period of time would allow the hydraulic system to operate without requiring a resequencing of the activation of the seat and belt switches.

Abstract: A crop harvesting machine having a pivoted drawbar forwardly extending harvesting apparatus is disclosed wherein the drawbar can be positioned in a transversely extending direction to permit a transportation of the harvester in a transverse direction when mounted on a mobile carrier. A support plate on which stops are provided to limit the operative range of pivotal movement of the drawbar is selectively movable to change the position of the stops relative to the frame of the harvester and permit the drawbar to be pivoted to a transversely extending position. By positioning the harvester upon a mobile carrier the harvester can be transported in a transverse direction without disconnecting the drawbar from the prime mover.