A . low water alarm and indicat()r for boilel'll has been patented by Mr. Charles Hults, of Torch Lake, Mich. In connection with a jointed frame and pivoted toggle levers is a properly connected fioat, so. a ranged that when the water in the boiler has fallen bcl�w a prescribed line, the fact will be made known by an indicator upon the boiler, together with an alarm from the whistle.