Abstract: A spring clip for interconnecting coil springs with tie wires to maintain the coil springs in spaced lengthwise and crosswise rows in the spring assembly, in which the clip member spans the adjacent chords of the terminal coils of the coil springs and receives the adjacent tie wires and the adjacent portions of the terminal coils of the coil springs in respective inwardly and outwardly facing channels with a tongue for leading the clip member into the assembled relation.

Abstract: An automatic plug changer is disclosed, particularly for a plug mill, although some features may have applicability in conjunction with related mills, such as piercing and reeling mills. A rotatable drum is mounted below the pass line of the mill and has pockets for containing a plurality of mandrel plugs. A combined plug support and discharge trough is movably positioned between the plug-containing drum and the mill rolls, and is aligned with a plug-receiving position in the drum. After a tubular shell has been driven through the mill, over a mandrel plug, the plug simply drops out of the mill, slides down the discharge trough and is received in the drum. The drum then indexes to a new position, bringing a new plug into alignment with the trough. A pusher mechanism then moves the plug out the drum and onto the discharge trough.