Band clamp with improved clamping arrangement

Abstract From the Canadian patent

A band clamp for pipe joints is disclosed and comprises a band which has confronting end flanges when wrapped around the pipes. A clamping mechanism is provided for pulling the end flanges together and stretching the band around the pipes. The clamping mechanism includes a pair of force bars outboard of the end flanges and a spline with concave surfaces on opposite sides, the spline being disposed between the end flanges. A pair of bolts extend through bolts holes in the force bars, end flanges and spline and nuts thereon are tightened to draw the flanges against the spline and stretch the band around the pipes. Oversize bolt holes in the flanges allow the force bars to move translationally …