Specification of Francis Lloyd : Furnace or fire-place.

  • Lloyd, Francis
Date:
1854
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Francis Lloyd : Furnace or fire-place. Source: Wellcome Collection.

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    Lloyd's Improved Furnace or Fire-place, <Sfc. substance capable of being cast, or of other such proper mettle or metallic substance, and are made of any proper shape or figure, and of the ordinary substance and thickness, as pipes or tubes of like dimensions are usually made and constructed. The said outside flue is made in the ordinary way. The 5 inside pipe or flue is placed as near the bottom of the boiler or vessell con¬ taining the liquid as possible to be clear of the same, and must be in capacity larger or smaller according to the size of the boiler, fire-place, and chimney flue. In all cases, the proper size and capacity of the inside pipes will be obvious, considering them simply as fire flues in the common way. In all 10 cases of large vessells for raising steam, I recommend the use of cast iron inside pipes or flues as being (in the end) the cheapest and (being applied on the • foregoing principles) will be found sufficiently durable, lasting, and as well as all other kinds of pipes or flues, freed from the great injuries they are exposed to in any other way heretofore used. In cases of accident, misfortune, or 15 damage happening to the said inside pipe or flue rendering the same useless, by being provided with proper caps to stop the holes in the boiler side or end at the communication with the said pipe or flue, the boiler may be very soon set on to work again by also making up the communication between the fire and the said pipe or flue, and opening a like communication between the fire and 20 the commencement of the said outside flue at a in N° 2, whereby any great delay or hindrance of business which might be occasioned in procuring another inside pipe will be prevented. For all other purposes, the said inside pipe may be varied according to the shape of the vessell containing the liquid to be heated, and to the convenience of the purpose for which the same is used, 25 observing always to carry the same to the greatest convenient extent of pipe or inside flue possible. In vessells of small capacity, and where there is any considerable depth of liquid, any proper pipe or flue may be fixed in or near the bottom of the vessel!, as may be convenient, from the fire door, in an upright or other such like direction, and enter the chimney or outward flue to 30 such vessell as near the top thereof as maybe, or above the same ; but in cases where the said upright pipe is continued above the surface of the liquid, I would not recommend the use of cast iron pipes. In respect to my Invention for drying malt, grain, wool, and other articles, by the following directions, and by observing the following proportions, kilns of any size or dimensions may be 35 erected, or any kiln already erected may with little alteration or expence be converted thereto. To erect a kiln seventeen feet square I lay cast iron or other proper mettle beams or bearers, and bars or timber beams and joints proper and sufficient to support the kiln floor in the common way of supporting floors. In the place where the fire-place is set in common malt kilns, I erect
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