We claim the ornamental design for a topload washing appliance, as shown and described.
FIG. 1 is a first top perspective view of the washing appliance of the present invention;
FIG. 2 is a second top perspective view of the topload washing appliance of the present invention;
FIG. 3 is a top plan view of the topload washing appliance of the present invention;
FIG. 4 is a bottom plan view of the topload washing appliance of the present invention;
FIG. 5 is a first side elevation view of the topload washing appliance of the present invention;
FIG. 6 is a second side elevation view of the topload washing appliance of the present invention;
FIG. 7 is a third side elevation view of the topload washing appliance of the present invention;
FIG. 8 is a fourth side elevation view of the topload washing appliance of the present invention; and,
FIG. 9 is another first side elevation view of the topload washing appliance of the present invention with the door in an open position to view the underside of the topload washing appliance door.
The broken lines in the figures are for contextual purposes or show the environment and form no part of the claimed design.