mporary restrain- ing order and had become a preliminary injunction subject to appeal under what is now 28 U.S.C. § 1292(a)(1). On the other hand, Connell I Dulien Steel Prod- ucts, Inc.. 5 Cir.. 1957, 240 F.2d 414, 415, certiorari denied, 1958, 356 U.S. 968, 78 S.Ct. 1008. 2 L.Ed.2d 1074, held that an order labell