US84117A - haw ley - Google Patents

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US84117A
US84117A US84117DA US84117A US 84117 A US84117 A US 84117A US 84117D A US84117D A US 84117DA US 84117 A US84117 A US 84117A
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air
house
haw
ley
box
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    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/767Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material with forced gas circulation; Reheating thereof
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00Drying solid materials or objects by processes involving the application of heat
    • F26B3/02Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
    • F26B3/04Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour circulating over or surrounding the materials or objects to be dried

Definitions

  • the subject of this invention is a drying-house or kiln, to be used for drying fruit, grain, lumber, clothes, &c.
  • the invention relates to a peculiar arrrangement of the cold and hot-air ducts, and also to the combinaiiontherewith of tubular heaters' for vwarming the-'air Awhich is to do the drying in the house or kiln.
  • the outer walls A of this house or kiln may be constructed of any of the most approved materials used for this purpose.
  • the fire-box B In the bottom part of the house Will be the fire-box B, which will be enclosed by the vertical walls of the hot-air chamber B', so as to leave an air-passage, l2, surrounding the said fire-box on all sides, except that occupied by the fuel-door.
  • the Wells of the hot-air chamber B' extend nearly to the top ofthe house or kiln, or at least to the height ⁇ of the top shelf or oor.
  • drying-chambers A' Surrounding the hot-air chamber, or arranged by the side of it, are the drying-chambers A', which are fitted with shelves, a), or other equivalent devices, for sustaining the article which is to be dried.
  • a for this purpose, or a cold-air'duct may be provided instead. While passing up through the chamber b, which is a very narrow one, the cold air cornes in direct and intimate contact with the heat-ed plates of the fire-box, and consequently it is quickly heated thereby. Then, as the air ascends into the hot-air chamber B', above the fire-box, the smoke-fines or tubes G will very rapidly impart to ita considerable increment of heat, and thus it will be iitted for the purpose for which it is intended.
  • the fire-box B, the smoke-tubes C, and the hotair chambers b and B' when constructed and employed as and for the purpose set forth.

Description

Win/less es:
@tutti @Hire www www B. RfHAW'LE'Y, or. NORMAL. ILLINOIS.l
Letters Patent No. 84,117, (lated November 17, 1868.
IMPROVEMENT 1N nRYrNaxmNs.
The Schedulereferred to in these Letters Patent and making part of the same.
To ail 'whom it mayconcem v Be it known that I, B. It. HAwLnY, of Normal, in the county of McLean, and Siate of Illnois,have made certain new and useful Improvements in Drying-Houses or Kilns; and I do hereby declare that the following v is a full and clear description thereof, reference being had tothe accompanying drawings, and to the letters of reference marked thereon.
The subject of this invention is a drying-house or kiln, to be used for drying fruit, grain, lumber, clothes, &c. The invention relates to a peculiar arrrangement of the cold and hot-air ducts, and also to the combinaiiontherewith of tubular heaters' for vwarming the-'air Awhich is to do the drying in the house or kiln.
.The outer walls A of this house or kiln may be constructed of any of the most approved materials used for this purpose.
In the bottom part of the house Will be the fire-box B, which will be enclosed by the vertical walls of the hot-air chamber B', so as to leave an air-passage, l2, surrounding the said fire-box on all sides, except that occupied by the fuel-door.
From the top part of the fire-box rise the smoketubes C, which are also enclosed within the hot-air chamberv B', and which convey the smoke from the furnaceto the smoke-pipe'G, and thence to the chimney D.
The Wells of the hot-air chamber B' extend nearly to the top ofthe house or kiln, or at least to the height` of the top shelf or oor.
Surrounding the hot-air chamber, or arranged by the side of it, are the drying-chambers A', which are fitted with shelves, a), or other equivalent devices, for sustaining the article which is to be dried.
which is to stand upon short legs, a, for this purpose, or a cold-air'duct may be provided instead. While passing up through the chamber b, which is a very narrow one, the cold air cornes in direct and intimate contact with the heat-ed plates of the fire-box, and consequently it is quickly heated thereby. Then, as the air ascends into the hot-air chamber B', above the lire-box, the smoke-fines or tubes G will very rapidly impart to ita considerable increment of heat, and thus it will be iitted for the purpose for which it is intended.
From the top end of the chamber B' the heated air will pass over into the chamber A', iu the direction of the am'ows,and down through the said chambers, to
'by the mode of heating it in b and B'; and secondly,
by allowing the spent and dampened'air to escape from the bottom of the kiln or house, where, of course, it will be dampest and coldest, instead of from the top, as other kilns do, and where, of course, the hottest air is lodged.
Having described my invention,
What I claim isl. The dry-house or kiln A, when provided with an inlet, b, surrounding the fire-box, at or near the base of the house, and with the heating-chamber B', which is to be so` arranged as to conduct the heated air to the top ofthe building, and the upcast shafts or chimneys D, When the latter are arranged to take the .vitiated or spent air from the bottoms of the chambers Afsubstantially as described and for the purpose shown.
2. The fire-box B, the smoke-tubes C, and the hotair chambers b and B', when constructed and employed as and for the purpose set forth.
B. R. HAWIJEY.
Witnesses:
M. RANDOLPH, S. M. RANDOLPH.
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