US433042A - Fire-proof chimney-tube - Google Patents

Description

(No Model.)

J. SGHINDLER. FIRE PROOF CHIMNEY TUBE.

No. 433,042. Patented July 29, 1890.

UNITED STATES PATENT OFFICE.

J OIIN SCHINDLER, OF BRIDGEPORT, CONNECTICUT.

FIRE-PROOF CHIMNEY-TUBE.

SPECIFICATION forming part of Letters Patent No. 433,042, dated July 29, 1890.

Application filed March 3, 1890. Serial No. 34.2, l66. (No model.)

To on whom it may concern:

zen of the United States, residing at Bridgeport, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Fire-Proof Chimney- Tubes; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention has for its object to produce a chimney-tube which may be used in any ordinary position in building-for example, where it is desired to carry a stove pipe through wood-work into a chimney or where it is desired to run a pipe through a closet before it can reach the chimney-said tube being so constructed that when used in a chimney one end of it will be built into the brickwork thereof and the other end will be cov- V ered by the plaster, but which shall be so constructed as to keep the lathing and all other wood-work at a distance from any metal pipe,

and which, moreover, shall be made so strong held firmly together, so that should sparks escape from the ordinary metal stove-pipe before reaching the chimney it shall be impossible for them to get through the tube and come in contact with any of the wood-work.

My novel chimney-tube may of course be made of any suitable material, the material itself not being of the essence of my invention. I have in practice made them from different kinds of clay and also from cement.

In the accompanying drawings, forming part of this specification, Figure 1 is a section of a chimney and the lathiug and plastering of a room, showing one of the studs and also my novel chimney-tube in elevation. Fig. 2 is a view of the wall with an ordinary metallic sleeve in place, showingin dotted lines the position of the outer end of my novel chimney-tube and also the position of the laths; Fig. 3, a longitudinal section of one of my novel tubes with a metallic sleeve therein; Fig. 4, a transverse section thereof, and Fig.

" 5 a front elevation of a section of chimneytube provided with couplingears.

1 denotes thebrick-work; 2,astud; 3,1aths; 4., plastering; 5, a sheet-iron sleeve, which is commonly used at present and which I preferably use at the outer end of the tube, and 6 is my novel chimneytube. The inner end of this tube I preferably make square, as shown in the drawings, so that it maybe built solidly into the brick-work of the chimney, and at the outer end I provide a thick hGZNY flange 7. It will be noticed (see Figs. 1 and 2) that this flange is made sufficiently wide so that in practice it will be impossible for the laths to come within two or three inches of the stove-pipe or metal sleeve. If preferred, the flange of the tube may be brought to the outer side. I preferably, however, plaster over the face of the tube, as clearly shown in Figs. 1 and 2, and simply have the outer flanged end of the metallic sleeve 5 show at the front, as shown both in Figs. 1 and 2.

In order to prevent the possibility of the tube breaking and the parts becoming separated under strain from any direction, no matter whether vertical, lateral, or longitudinal, I provide a series of circular metallic ties or bands (denoted by 12) and a series of longitudinal ties or strengtheningstrips, (denoted by 13.) These ties, bands, or strips are molded into the tubes in the process of making and form an integral part thereof. In practice they give the greatest possible amount of strength to resist strain from all directions, so that even should the tube become cracked by settling at either end, or from any cause whatever, the pieces cannot be separated. My novel tube is, therefore, under all circumstances absolutely fire-proof and safe. The circular bands may be made in separate pieces with the ends attached together, or they may be placed in the molds in spiral form, if preferred. I make these tubes of various ordinary lengths to meet the common requirements of house-building. They can .be specially made, when required of any unusual length, at very slight expense.

I am aware that a Stovepipe thimble made square at one end to adapt it to be built into a chimney is old, and I am also aware that it is old to provide earthenware pipes with metallic strengthening rings and sleeves, andtherein, and I do .not, therefore, claim any of these features, broadly.

Having thus described my invention, I claim 1. A fire-proof chimney-tube made of plastic material and having molded therein 1ongitndinal and circular metallic ties or strips, the said tube being square at one end to adapt it to be built into a chimney and having at its opposite end a heavy flange to be inter-- posedbetween thewood-work and a stove-pipe.

' 2. A fire-proof chimney-tube made of plastic material and having molded therein lon-

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