injunction against judgment at law

It may be stated as a general principle, with regard to injunctions after a judgment at law, that any fact which proves it to be against conscience to execute such judgment, and of which the party could not have availed himself in a court of law, or of which he might have availed himself at law, but was prevented by fraud or accident, unmixed with any fault or negligence in himself or his agents, will authorize a court of equity to interfere by injunction to restrain the adverse party from availing himself of such judgment.