Definitions for "Horizontal bar"
gymnastic apparatus consisting of a bar supported in a horizontal position by uprights at both ends
Cross bar used for hanging drapes.
This circus apparatus came to circus from sports gymnastics. To improve it, since time an ordinary horizontal bar was transforming into a system of horizontal bars, that are double, triple, etc., with various positions to each other on the ring, and as a result a circus parallel horizontal bar emerged.
Keywords:  ordinaire, fess, called
an ordinaire called a "Fess"