Jumping stands are very simple in their construction, consisting of two pieces of square timber (A A) about 4 inches square, bolted to cross-piece (B B) ([Fig. 6]). In many instances they are merely sunk into the ground without any sole-pieces or struts.
For foot-jumping the stands average 6 feet in height, with three-eighths of an inch holes bored from top to 1 foot from bottom. They are painted and marked feet and inches. A line and sandbags (D D) rest on two pins inserted in the three-eighths-of-an-inch holes, so that should the foot catch in the act of jumping the line immediately falls off.
For pole-jumping the stands must be 12 feet high and strong in proportion, while in other respects they are the same as for foot-jumping.
The Pan-Gymnasticon.
Fig. 7
This combination ([Fig. 7]) consists of a ladder-plank (A), two standing-planks (D D), and standing-ladder (B), all fourteen feet in length, which form the four supports to carry the cross-beam (E), ten feet long, to which may be suspended any apparatus you may wish. This is very similar to the Portable Horizontal Bar ([Fig. 2]), only carried out upon a large and more elaborate scale. If I were to describe its general construction, I should be merely recapitulating what has already been explained. This apparatus may be made any size, of course proportionately strong, G, G, H, H, and I, represent a bar with triangular ends stayed off to the bottom of the four uprights, which, when made tight, the bar becomes perfectly rigid, so that a trapeze bar may be converted into a horizontal bar if required.
Other useful Apparatus.
