US1339705A - Kiln - Google Patents

Description

K.4,HIMROD.

KILN. APPLICATION HLEp Aue.30, '19l6.

1,339,705, I Patented May 11,1920;

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. 2 1L 9 3 g i3 6 (2 WATER J 1 W STEQM WATER I Inventor ton,

' agent.

in is a speci STATES PATENT 1:;

max nnmon, or mon'rou, min-unso'm, nssrenon,

mn'ms, TO PAUL W.-IMZcKAY, zmus'rnn, or WATERFORD,

BY mi'm'c'r m MESNE Assisi:- rnnusynvmn.

KILN.

To all whom it may concern:

Be it known that I, KIRK HiMRoD, a citizen of the United States, residing at Iron county-of Crow Wing, and State of Minnesota, have Improvement in Kilns, of which the-followfication;

y invention relates to kilns for drying and seasoning lumber or the like, and my object is to produce a kiln wherein the material to be seasoned is subjected to the direct action of heat from a furnace or other source of combustion.

A further object is to provide means for preventing contact of the flames with the Specification of letters Patent.

invented a new and useful material without loss of heat due to excessive distance between the source and the kiln.

Av further object is to provide means for humidifying the heating agent and for regulating the amount of moisture in the heating A further object is to provide improved means for causing the heating agent to traverse the kiln.

A still further object is to produce a kiln ple and cheap of construction and economical of use.

These and further objects will more fully appear in the following specification and accompanying drawings considered together or separately.

I have illustrated one embodiment of my invention in the accompanying drawings, in which likeparts in all of the figures are designated by similar reference characters and in which:

Figure l is a diagrammatic sectional view of a kiln embodying my invention:

Fig. 2 is a similar view of a modification; and

Fig. 3 is a detail section of still another modification.

In the drawings 1 designates of the usual kiln construction in which the lumber 2 to be seasoned is piled with spaces between the boards for the passage of a heating agent as is customary. provided with inlet openings and outlet openings 4- near the roof.

I provide a furnace 5 located in proximity to the kiln andthe furnace communicates with the kiln through the openings 3 means of a fine 6. liocated within the fire box of the furnace is a boiler 7 which in a building I The kiln is" 3 in its floor in Fig. 1

" enters the in' Fig. 3, I show main furnace and of csuperheating the steam when desired.

' to the kiln to avoid 1916. Serial No. 117,584;

the embodiment of the invention. illustrated 1s a flash boiler composedof a coil of P1136. The boiler is fed from a source of supplby means of a pipe 8 provided with a valve 9 and communicates with the flue 6 by means of a nozzle 10, by means of which The steam issuing from the jet will smother the flames in the flue and the pressure in the boiler will force the steam and products of combustion into'the kiln, through the piles Patented Ma 'ii, 1920.

a jet of steam is projected into the fluez of lumber in contact with each individual board therein-and out of the openings 4.

Between the jet 1O andthe kiln 1,1 pro-.

vide a pipe flue 6 beyond the jet and may admit water, which-will, by the heat from the furnace, be converted into saturated steam during certain periods of the seasoning process, or it'may admit steam when an additionalsupply is required for quenching the fl'ame or for any other purpose.

The degree of heat admitted to the kiln may be; regulated by increasing or diminishing the pressure of the steam issuing from the jet 10, or by the admission of water through the pipe 11 or both.

11 having a valve 12. This pipe In the modification shown in Fig. 2 I

show a furnace 13 provided with a sparkarrester 11' for preventing flames, sparks or burning embers from reaching the kiln. In this embodiment of the'invention the steam for the jet 10 is transported froman in-v dependent source, such for example as the boiler of a saw mill.

In the embodiment of the invention shown an auxiliary furnace 15 The auxiliary furnace in the flue between the 10 for the purpose for heating a .coil 16. and coil are placed the jet The furnace is placed in close proximity loss of heat by radiation, so that a very large percentage of the heat generated in the furnace will be utilized in the kiln. I

My improved kiln requiring no elaborate system .of piping, may be constructed very cheaply, and is so simple in its operation that it may be made a part of the equipment of the largest as well as the smallest saw mill. Thelumbe may be seasoned directly after sawing a he heavy transportation char e on gree umber avoided.

' T- rnace may be fired with the waste products of the mill, such as sawdust or slabs or both, orthe heat and steam for seasoning may be taken from the steam plant of the mill when such power'is employed. i 1

In accordance with the provisions of the Patent Statutes I have described the principle of my invention, together with the apparatus which I now consider to represent the best embodiment thereof, but I desire to have it understood that the apparatus shown is merely illustrative, and that the invention may be carried out in other ways.

Having now described my invention what I claim and desire to secure by Letters Patent, is: v

1. The combination with a kiln, of a burner, and means for directing the prodin the presence of superheated steam andmeans for supplementing the steam supply.

4. The combination with a kiln, of a burner, a steam jet fordirecting the products of combustion from the burner'into the kiln,

and means for admitting water to the prodnets of combustion.

5. The combination with a kiln having inlet openings, a flue communicating with the openings, ofa burner communicating with the flue and in close proximity to the kiln,

means for generating steam, means for su-' Y perheating the steam, and means whereby combined steam and lVitnesses the superheated steam is employed for diirecting the products of combustion from the the flue and in closeproximity to the kiln,

means for generating steam, means for superheating the steam, and means for/mixin the superheated steam with the products 0 combustion of the burner and dlrecting the products of combustion to the kiln.

7. The combination with a kiln having inlet openings, and a flue communicating with the openings, of a burner communicating with the'flue' and in close proximity tothe kiln, and a steam jet for directing the prodnets of combustion from the burner to the kiln, said steam preventing flame fromreaching the kiln, and means for superheating the steam.

8. The combination with a kiln havingin- I let openings, a flue communicating with said openings, of a burner communicating with the flue and in close proximitv to the kiln, a conduit communicating with the flue between the burner and thekiln whereby a -fluid may be delivered to the flue, means for generating steannmeans .for superheating the steam, and means for mixing the superheated steam and fluid delivered by the conduit with the products of combustion of the burner and directing the combined steam,

fluid and products of combustion to the kiln. This specification signed and witnessed this twenty fourth day of August, 1916.

' 1 HIMRODH EDWARD R. SYvERsoN, I. W. SMITH.

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