Hypsometer, Regnault’S

For Determining The Upper Fixed Point Of Thermometers And Boiling Points At Barometric Pressures Other Than The Atmospheric Pressure. Comprising A Double Walled Upper Cylindrical Boiling Vessel With A Steam Jacketed Inner Tube, Mounted On A Stem Boiler. A Lid With A Tubule Is Provided At The Top, Which Holds Thermometer Under Test Through A Holed Rubber Bung Mounted In The Tubule. Fitted With A Side Outlet Draining Tube And A Glass Manometric Tube. (Hypsometer, All Sheet Metal Components Of Copper.)