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Guillaume Geessels
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Structures Of Non-Positive Displacement Pumps
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Abstract
3509. Geessels, G. Feb. 17. Chimney tops.-A box 1 surmounted by a central tube 4 of smaller diameter than the flue, and also by a number of smaller surrounding tubes 5, which are such that the total cross-section of all the tubes is greater than that of the flue, is placed above a chimney to promote up-draught. The tubes may be surrounded by a cylindrical casing.
GB190803509D1908-02-171908-02-17Device for Increasing the Draught of Chimneys and for Obtaining Draught with Bad Chimneys.
ExpiredGB190803509A
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