Abstract: A portable feed mill machine having a plurality of spaced-apart feed mills positioned on a wheeled frame such as a trailer. Any one of the feed mills may be taken out of operation for repair without the other feed mills being taken out of operation. The machine may have a plurality of mechanized devices rather than the feed mills.

Abstract: A tow bar for connecting a towed vehicle to a towing vehicle, the tow bar comprising a towing vehicle connection mechanism connected to the towing vehicle; a towed vehicle connection mechanism connected to the towed vehicle; and an interconnecting mechanism connecting the towing vehicle connection mechanism to the towed vehicle connection mechanism. The interconnecting mechanism defines an interconnection central point and an interconnection vertical axis spaced rearwardly from the interconnection central point. The interconnecting mechanism is structured to accommodate substantially all pitch and roll movements between the towing and towed vehicles at and about the interconnection central point, and to accommodate substantially all yaw movements between the towing and towed vehicles at and about the interconnection vertical axis.

Abstract: A tow bar for connecting a towed vehicle to a towing vehicle, the tow bar comprising a towing vehicle connection mechanism connected to the towing vehicle; a towed vehicle connection mechanism connected to the towed vehicle; and an interconnecting mechanism connecting the towing vehicle connection mechanism to the towed vehicle connection mechanism. The interconnecting mechanism defines an interconnection central point and an interconnection vertical axis spaced rearwardly from the interconnection central point. The interconnecting mechanism is structured to accommodate substantially all pitch and roll movements between the towing and towed vehicles at and about the interconnection central point, and to accommodate substantially all yaw movements between the towing and towed vehicles at and about the interconnection vertical axis. The interconnection mechanism includes a disk spring device for accommodating variations in manufacturing tolerances and wear during use.

Abstract: A tow bar for connecting a towed vehicle to a towing vehicle, the tow bar comprising a towing vehicle connection mechanism connected to the towing vehicle; a towed vehicle connection mechanism connected to the towed vehicle; and an interconnecting mechanism connecting the towing vehicle connection mechanism to the towed vehicle connection mechanism. The interconnecting mechanism defines an interconnection central point and an interconnection vertical axis spaced rearwardly from the interconnection central point. The interconnecting mechanism is structured to accommodate substantially all pitch and roll movements between the towing and towed vehicles at and about the interconnection central point, and to accommodate substantially all yaw movements between the towing and towed vehicles at and about the interconnection vertical axis.

Abstract: A combination tow hook and base plate system for connecting a tow bar to a towed vehicle. The system includes transversely opposed tow hook members, each having a closed loop configuration, connected to the towed vehicle. The system also includes base plate members configured to be operatively connected to the tow bar, each base plate member including a horizontally oriented spacer plate, a stiffener, an optional cross member interconnecting the base plate members, and a tow bar connector mechanism. The system further includes connector mechanisms configured to operatively connect the base plate members to the tow hook members, each connector mechanism including a connector plate, a spacer configured to be slidably insertable through the closed loop configuration of the respective tow hook member, and a fastening mechanism. The connector plates, spacer plates, and fastening mechanisms are configured to cooperatively and removably secure the base plate members to the tow hook members.