POSSIBLE USE OF SUSPENDED ROOFS AND WALLS IN GLASS FURNACES*

Construction advantages and limitations of the sprung-type tank crown are discussed, and some modern heating chamber applications are shown in which the roof or crown has been changed in contour to secure better and more efficient heating. Developments have been made which indicate that a roof or crown may be used for more than just a top inclosure over a heating chamber. An explanation is given of how the present roof construction has been changed to secure these improved contour lines across and lengthwise of the heating chamber. Any of these features may be more generally applied to improved glass tank construction.