The ornamental design for a casing and supportconstruction for a hammer mill, as shown and described.
FIG. 1 is a front perspective view of a casing and support construction for
a hammer mill, showing my new design with portions of a motor and its
support shown in broken lines for illustrative purposes only;
FIG. 2 is a top plan view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof; and
FIGS. 5 and 6 are opposite side elevational views thereof.