Abstract: A multi-station cattle stanchion has a top rail with a trackway extending longitudinally of the stanchion in which the upper ends of a generally upright, J-shaped pivoting standard move laterally. A gravity operated locking bail is pivotally mounted at one end to the upper rail and includes an inclined tongue portion on the other end which extends into the path of the pivoting standard as it moves through the trackway. The tongue portion allows passage of the pivot standard in one direction, but blocks movement thereof in the other direction. A selectively activated lock disengaging plate may be moved by a master control rod into a position that lifts and holds the tongue portion out of the trackway.

Abstract: A generally circular die is mounted on a rotatable shaft in non-rotatable relation thereto. The periphery of the die is formed by a plurality of separate arcuate (circular) portions curved along a path equal in radius to the desired radius of curvature of the bend in the different size pipes being bent. Each of the arcuate portions includes a hemispherical recess having a diameter differing from the others and substantially equal to the outer diameter of the tube being bent in that particular arcuate portion. A force transmitting member is secured by an arm to the aforementioned vertical shaft and is rotatable therewith. The surface of the force transmitting member is provided with a plurality of separate arcuate portions, each having a hemispherical recess therein corresponding to those on the corresponding portion on the die face opposite.