| 摘要 |
<p>A putter has a shaft, with a curved test striking face in place of the ball striking face, and a member of locating the impact point on the curved test striking face. A cylindrical or conical hitting puck has a curved face, which puck is positioned on a horizontal surface with its axis in a vertical position. The method of measuring the effective loft comprises the steps of providing on the putter a curved puck striking, positioning a cylindrical or conical hitting puck on a horizontal surface with its axis vertical. Then swinging the golf putter to cause the curved face to engage the puck, and measuring the point on the curved face where it struck the puck. Finally calculating the effective loft.</p> |
