39 near its top instead of secured by lower mounting bolts also the mounting plate 18 39 is slotted on an arc 79 to permit goal 12 39 to rotate to the right or left while upper mounting bolts 26 39 remain stationary in the direction parallel to the face of the backboard the lower attachment means for goal 12 39 consists of a single clevis head bolt 63 to which straight members 19 39 are secured by a pivot pin 22 39 as shown in fig8 and 10 the shank of clevis head bolt 63 passes through and is secured to backboard 11 39 by nut 67 beneath which is washer 68 by torquing nut 67 the proper preload can be achieved to resist normal ball forces imposed on the right or left sides of goal 12 39 lever 69 is rigidly attached to clevis head bolt 63 by a key not shown and nut 70 to the top arm of lever 69 absorbers 72 are attached by clevis and pin methods the opposite ends of absorbers 72 are mounted by clevis attachments to angle clips 73 which are rigidly secured to reinforcing plate 28 39 one end of compression springs 71 fits inside of spring.