Abstract: A tarp assembly for covering an open top of a truck trailer has a tarp with a longitudinal edge fixed to one side of the trailer. A roll bar secured to the free edge of the tarp is rotated with a crank rod to roll the tarp to an open position and unroll the tarp to a closed position. A hold bar fixed to the free edge of the tarp with a plurality of straps is adapted to engage hooks secured to a side of the trailer to hold the tarp in a closed position. The hooks guide the straps and retain the hold bar in alignment for mutual engagement with the hooks.

Abstract: A vacuum grain moving apparatus connected to a three-point hitch of a tractor and operated with the power take-off drive of the tractor. The apparatus has a grain holding tank connected to a grain collection hose used to carry grain and air to the tank. An air moving unit mounted on the tank has a rotatable power driven impeller that draws air from the center of the chamber of the tank to provide a vacuum pressure within the tank. The impeller has first and second generally radial blades that pump the air from the tank chamber. An auger conveyor operatively associated with the lower end of the tank moves the grain from the tank into a transport vehicle. The auger conveyor has a driven helical auger located within a tube. The tube extends beyond the outer end of the auger and retains a plug of grain in the tube to inhibit back flow of air into tank chamber during the running of the air moving unit. A swinging gate pivotally mounted on an outer end cap normally closes the exit opening of the tube.