Vaulting-Pole Holder
An adjusting device for a vaulting pole that can be easily fixed at any point on a round pole by using a wedge and ring, is shown in the sketch. The wedge carries a pin on which to place the cross pole. The manner of using this device as well as its construction is clearly indicated.—Contributed by Sterling R. Speirs, St. Louis, Mo.
The Ring on the Upright, Held in Position by the Wedge, Which in Turn Carries the Pole on the Pin