Driving belts

A driving belt comprising detachable, flexible, elongate links arranged in a staggered, overlapping relationship, each link having a tapered shape including wider and narrower ends, each link having a pendant stud including a shank with one end connected to the narrower end of the link for rotation with respect thereto and also including a head on the other end of the shank, first and second perforations in each link spaced from the stud thereof and from each other along the longitudinal axis of the link, each link having a solid cross section between the first and second perforations thereof, each perforation having an elongated shape along the length of the link, the first perforation of each link being located between the stud thereof and the second perforation thereof, a first link being attached to a second, adjacent, overlapping link and to third link overlapping adjacent said second link by the stud of the first link extending through the first perforation of the second link and through the second perforation of the third link, the head of each stud being oblong so as to allow the stud head to pass through the associated perforations without substantial lateral distortion of the links only when aligned with the associated perforations, the stud of each link being rotatable between a position where the head thereof is aligned with the associated link perforations and a position where the stud head is not so aligned, the shank of the stud of the first link passing through the first perforation of the second link at a position abutting the end thereof closer to the stud of said second link and through the second perforation of the third link at a position abutting the end thereof remote from the stud of said second link, whereby the belt is rigid along its length.