US1862960A - Method of singeing - Google Patents

Description

June 14, 1932. W, w, KEMP METHOD oF SINGEING Filed May 1o, 195o Patented June 14, 1932 UNITED s'irA'rEs,

PATENT OFFICE I WILLIAM WALLACE KEMP, OF BALTIMORE, MARYLAND, ASSIGNOR T0 THE C. M. KEMP MANUFACTURING COMPANY, OF BALTIMORE, MARYLAND, A CORPORATION 0F MARYLAND METHOD OF SINGEING Application led May 10,

The present invent-ion relates to a new and improved method of smgeing, and more particularly to the smgemg of textile materials,

for which it is particularly designed, al-v though the method may be adapted to singeing or treatment of other materials than that specifically vshown and described.

Inorder that the method may be clear, I have shown in the acco-mpanying drawing apparatus by which the method may be practiced, but it is to be understood that this is illustrative and in no sense restrictive, as apparatus other than that here illustrated may be used for prat ticing the invention.

In the drawing Figure 1 is a view in elevation of a portion of a. singeing apparatus sufficient to illustrate my invention.

Figure 2 is a sectional view substantially on the line 2-2 of Figure 1, looking in the direction of the arrows.

Figure 3 is a sectional view of the top of a burner showing a different method of utilizing the singeing flame from that shown in Figure 2.

It has been customary in the singeing art to pass the material, usually a textile fabric, through a flame, the speed of the fabric and the contact or proximity of flame being so regulated as to effect the desired singeing ,without injuring the fabric. Heretofore, as

the art is now known to me, it has been customary to generate a flame from any suitable fuel delivered from suitable fuel nozzles and then pass the fabric or'other material under treatment through the flame or in singeing proximity thereto, so that the singeing action takes place on the surface of the cloth against which the flame impinges.

In accordance with my invention and the .method herein disclosed, the burning of the fuel and the singeing operation takes place in a confined space or combustion chamber, which combustion chamber is closed and the flame confined by the material to be singed passing across or over the mouth of the combustion chamber in such relation thereto as to substantially confine the flame within the chamber.

Apparatus for practicing the method and 1930. seriai No. 451,375.

the steps of the method will be clear by reference to the drawing.

Referring to the drawing, in which like numbers indicate like parts in the related views, 10 indicates any suitable burner made up of units for convenience in assembling an installation, which burner 10 vis connected with a fuel supply pipe 11 by means of branch pipes having control valves 12, whereby the fuel coming from the supply pipe 11 may be lregulated for the units of the burner, 10 as tended area of flame over which the 'material to be-singed passes.

` In accordance with my method, the material to be singed, conventionally shown at 16, will be drawn across the burner substan tially in contactv therewith so as to confine the products of combustion substantially in the combustion chamber 15, the speed of the material 16 and the pressure of the fuel from which the flame is generated being so regulated as to effect singeing without burning the material. It will be understood that the fuel will be supplied under pressure, so that there will be an effective blast of such intensity as is necessary against the surface of the material which is being singed. Obviously, since the fuel is supplied to the combustion chamber 1,5 under pressure, and as the material to be singed is drawn across the top of such chamber substantially in contact with the burner, the flame will be confined and compresscdin thecombustion chamber 15. The fuel will be, preferably, a self-sustaining fuel, that is, one which will burn in a confined space, one form of selfsustaining fuel being gas and air mixed in such proportions that there will be suflicient oxygen to support combustion of the fuel in ool a confined space, such as the combustion chamber 15.

In another application of my method, I have found that by increasing the pressure, the flame can be maintained both in the combustion chamber on one side of the material 16 being under treatment, and also forced through the material and maintained upon vthe opposite side, as conventionally shown in Figure 8, so that both sides of the material can be singed at the same time. This variation in the method can be accomplished by varying the pressure of the fuel coming through the perforations, 14, so that either the flame can be maintained, as shown in Figure 2, wholly within the combustion chamber 15, or, as shown in Figure 3, by properly increasing the pressure, it can be maintained both in the combustion chamber 15 and on the other side of the material.

In order that the burner 10, with which the material under treatment is in contact, will not become overheated and cause contact burning of the material, the burners will preferably be provided with any suitable cooling arrangement, as, for example, cooling chamber 17, which may be fed with a suitable refrigerant in any desired Way, as, for example, through the port 18, here shown in the bottoni of the burner and leading to the cooling chamber.

It has been found that following this method, materials, such as fabrics, may be uniformly and rapidly singed, either on one side or both sides, dependent upon the manner in which the method is practiced, and the singeing flame maintained in better relation to the material subjected to it than where the material is simply passed through the flame at a point removed from the burner. Under the old method there is always a tendency of the flame to drag, because of the following air film contiguous to the travelling fabric or material under treatment, and imperfect singeing some times results. Following the method disclosed, and particularly in connection with the method of Figure 3, sufficient pressure, when desired, can be developed in the combustion chamber 15 to force the flame through the fabric, so as to not only singe on both sides of the material asheretofore pointed out, but also effect a thorough singeing between threads of the fabric.

I claim 1. The new and improved method of singeing, which consists in passing the material to be singed in such proximity to a fuel burner having a combustion chamber as to bring the material and fuel burner flame into direct and intimate contact over an appreciable ing, which consists in passing the material to be singed over a fuel burner having a combustion chamber therein with the material in contact with the burner so as to bring the material and fuel burner flame into direct and intimate contact and confine and compress the fuel burner flame in the combustion chamb'er.

3. The new and improved method of singeing, which consists in passing the material to be singed in such proximity to a fuel burner having an open combustion chamber therein so as to bring the material and fuel burner flame into direct and intimate contact and substantially close the combustion chamber and compress the fuel burner flame therein and singe one side of the material, and causing the fuel burner flame to be passed through the material to be singed to effect singeing of the other side of the material.

4. The new and improved method of singeing which consists in confining and compres"- ing the fuel burner flame of a self-sustaining fuel in a combustion chamber by passing the material to be singed across the open end of the combustion chamber in such relation thereto as to bring the material and fuel burner flame into direct and intimate contact and substantially close the chamber.

5. The new and improved method of singeing, which consists in confining and compressing the fuel burner flame of a self-sustaining fuel in a combustion chamber by passing the material to be singed across the open end of the chamber in such relation thereto as to bring the material and fuel burner flame into direct and intimate contact and substantially close the chamber to confine and compress the fuel burner flame therein, and forcing a portion of the ignited fuel through the material to effect singeing of the material on both sides.

6. The new and improved method of singeing which consists in passing the material to be singed across a fuel burner having an open combustion chamber therein with the material in contact with the burner so as to bring the material and fuel burner flame into direct andintimate contact and enclose and compress the fuel burner flame in the combustion chamber, and passing a portion of the flame through the cloth.

In testimony whereof I have hereunto set my hand.

WILLIAM WALLACE KEMP.

area and substantially close the chamber to confineV and compress the fuel burner flame therein.

2. The new and improved method of singe-

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