I claim the ornamental design for a projectile throwing apparatus, as shown and described.
FIG. 1 is a front perspective view of a projectile throwing apparatus, for example for throwing a golf ball sized projectile, showing my new design;
FIG. 2 is a rear perspective of the apparatus;
FIG. 3 is a detail front perspective view of the head of the apparatus;
FIG. 4 is a detail rear perspective view of the head of the apparatus;
FIG. 5 is a right side elevation of the head of the apparatus taken from FIG. 3;
FIG. 6 is a rear elevation of the apparatus taken from FIG. 3;
FIG. 7 is a front elevation view taken from FIG. 3;
FIG. 8 is a top plan view taken from FIG. 3;
FIG. 9 is a bottom plan view taken from FIG. 3; and,
FIG. 10 is a sectional view taken from FIG. 7 along center 10-10.
The broken lines showing the remainder of the apparatus are for illustrative purposes as showing the environment of the design and form no part of the claimed design.