Specification of Francis Erskine : economizing fuel and consuming smoke.

  • Erskine, Francis
Date:
1869
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Francis Erskine : economizing fuel and consuming smoke. Source: Wellcome Collection.

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    2 A.D. 1868.—N° 3784. Provisional Specification. Frskine’s Improvements in Economizing Fuel and Consuming Smoke. complete combustion is attained. The space below the fire bridge is provided with a valve or damper of metal or fire-clay, and the space above the fire bridge may also be provided with a valve or damper of metal or fire-clay, so that the quantity of gases passing over and the quantity of air passing under the fire bridge may be regulated in each 5 case. The damper or valve for regulating the space under the fire bridge is arranged in a vertical position, and so that it can be slided to and from the fire bridge (remaining vertical in each position) by any suitable connection. The damper for the space above the bridge may be arranged in vertical guides and may be actuated by inclines or other 10 means. In some boilers having internal flues with water tubes across them I make one tube form either the whole or part of the fire bridge, if the tube forms only a part of the fire bridge the other part is made of fire-bricks or fire-clay built upon the tube. In the flues of the boilers I sometimes apply to facilitate the mixing of the gases additional 15 bridges either descending from the top or ascending from the bottom of the flue, or both combined with my improved arrangements above described. LONDON: Printed by George Edward Eyre and William Spottiswoode, Printers to the Queen’s most Excellent Majesty* 186$.
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