Specification of Samuel Hall : boilers, furnaces and flues.

  • Hall, Samuel.
Date:
1854
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Samuel Hall : boilers, furnaces and flues. Source: Wellcome Collection.

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    Hall's Improvements in Hollers, Furnaces, Flues, $c. -■ - - ■ • - — ■— ■ ■ ■ -- ■■■■.. • ■ ■ '■ . ■-■■■■■■■■—-. —■ ■ — ■■■■ ■■■ t are rods applied to the levers to move the shelves from the horizontal to the vertical position, as shewn by dotted lines, to discharge the clinkers on them into the ash pits. N, Figures 1 and 5, is an iron case, shewn in plan at Figure 1*, through which a stream of water is passed, which I call a boiler protector, o is a pipe to connect one end of the protector with the feed pump 5 or other apparatus for supplying water to the boiler, p is another pipe to connect the other end of the protector with the boiler near the bottom; the stream of water passes through the above in the direction of the arrows, and the plate s makes the stream rush with rapidity at the bottom of the protector, although from its not fitting closely it allows the water to find its proper level 10 .above the plate in the protector, q, q, are small pipes at the highest corners of the protector to connect it with the boiler above the water line, r, r, r, r, are cement joints to attach the cast-iron ends to the protector, which are bolted together with bolts. The water may be passed through the protector from the feed pump or other apparatus for supplying the boiler with water, as here 15 shewn, or it may be taken from one side of the boiler and passed through the protector to the other side thereof, or a stream of water may be passed through it to be heated for supplying bleachers, dyers, and other pans or vessels, or for any other useful purposes, the object of this case or vessel being to absorb the heat of the fire as it is generated on the fronts of the fire-bars instead of its ®.Q being allowed to accumulate and rush when so accumulated to the front part of the boiler, as is the case when arches of fire bricks range over the fire in the situation of this protector ; but the following plates of fire bricks or other suit¬ able material, V and Vx, may be affixed to or at a small distance from the bottom of the protector N, or on the inclined portion of the front of the boiler Ax, to 25 reflect the heat of the fire upon the fresh coal on its entrance from the hopper into the furnace for the purpose of igniting it. I also apply similar plates to or at a small distance from the tops and sides of such furnaces as are situated within boilers, j, j, and jx, jx, are plates placed in an inclined position in the fronts of the furnaces for the double purpose of catching the small particles of 30 coal which may drop between the fire-bars in the fronts of the furnaces, and of checking the supply of air to the furnaces, and preventing its rushing at once to the far ends of the ash pits without passing sufficiently through the front ends of the fire-bars for the ignition of the coal [as it enters the furnaces. These plates are fixed on axles, and may be lifted up in front when it is 35 necessary to get access to the ash pits to withdraw the ashes, or for any other purpose, h and Jcx are plates, fixed also on axles at the back ends of the fire¬ bars for the purpose of regulating the quantity of air passing through those parts of the furnaces, and for stopping its passage altogether, or as nearly so as