Abstract: A shaft-mounted clamp includes a pair of clamp members that are pivotably coupled to one another at one end, each clamp member including a through-hole for receiving the shaft to which the clamp is to be mounted. At least one of the clamp members includes a push rod that extends through the opposite clamp member, and which has a distal end portion that is contacted by an article supported on the shaft to increase the engagement of at least one of the clamp members on the shaft. A coupling device may be provided at one of the clamp members for suspending an article therefrom. The clamps may be readily repositioned along the shaft by squeezing the clamp members together (such as against the biasing force of a spring) to more closely align the through-holes with one another and thereby release the engagement of the clamp members with the shaft.

Abstract: A shaft-mounted clamp includes a pair of clamp members that are pivotably coupled to one another at one end, each clamp member including a through-hole for receiving the shaft to which the clamp is to be mounted. At least one of the clamp members includes a push rod that extends through the opposite clamp member, and which has a distal end portion that is contacted by an article supported on the shaft to increase the engagement of at least one of the clamp members on the shaft. A coupling device may be provided at one of the clamp members for suspending an article therefrom. The clamps may be readily repositioned along the shaft by squeezing the clamp members together (such as against the biasing force of a spring) to more closely align the through-holes with one another and thereby release the engagement of the clamp members with the shaft.

Abstract: A method and apparatus for pacing an athlete along a predetermined course having at least one visual marker located thereon to be used in conjunction with a prerecorded narrative message indicating when the athlete should be adjacent the visual marker and for providing motivational support to the athlete along the length of the course. The device includes a means worn by the athlete for playing back any one of a plurality of prerecorded messages, each corresponding to a specific distance and performance goal. The plurality of messages may be stored on an archival medium such as a magnetic tape or electronic chip which, when played back, produces an audio narrative message heard by the athlete. Each narrative message continuously provides the athlete an update of the time into the event, the remaining in the event, the time between successive visual markers, and motivational support.