US610964A - Hugo gallinowsky - Google Patents

Description

Patented Sept. 20, I898.

H. GALLINOWSKY. COMPOUND FOR RENDERING SUBSTANCES FIREPROOF (Application filed Jan. 13, 1897) (N0 Model.)

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I-IUGO GALLINOWSKY, OF LONG BEACH, MISSISSIPPI.

COMPOUND FORYRENDERING SUBSTANCES FIREPROOF.

SPECIFICATION forming part of Letters Patent No. 610,964, dated September 20, 1898.

Application filed January 13, 1897. Serial N0. '619,100. (No specimens.)

To aZZ whom it may concern.-

Be it known that I, HUGO GALLINowsKY, a citizen of the United States, residing at Long Beach, in the county of Harrison and State of Mississippi, have invented certain new and useful Improvements inCompounds for Bendering Substances Fireproof and I do hereby declare the following to be a full, 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 present invention relates to improvements in compounds for rendering substances fireproof, and has for its object the production of such a compound which is both certain in its capacity to resist fire and comparatively inexpensive.

The said invention further consists of the novel features hereinafter more fully described.

My improved compound is most effective, I.

believe,when applied as hereinafter described and shown in the drawings, and I therefore prefer to set forth its application, although I make no claim to the same herein.

Referring to the accompanying drawings, in which similar parts are represented by similar letters, Figure 1 represents in perspective view a piece of timber having one side covered with my improved sheeting, and Fig; 2 a perspective view showing the manner in which I propose to apply my sheeting in the construction of fireproof doors and elevatorshafts.

To render a combustible substance fireproof by my said invention, I proceed as follows: For the sake of simplicity it will be supposed that the substance is a piece of board or timber A. First I paint the board or wall A with a compound composed of magnesium oxid, magnesium chlorid, (saturated solution,) boracic acid, and sal-ammoniac. These ingredients are mixed in about the following proportions: magnesium oxid, one and one-half pounds; magnesium chlorid, (saturated solution,) one and one fourth pints; boracic acid, a suitable amount, (about onehalf pint,) and sal-ammoniac one-fourth pint. I then thoroughly saturate some fibrous material-such as jute, canvas, cotton cloth, and the like-with the above compound and lay the saturated cloth over the painted surface, stretching the same tightly. Then I proceed to lay on one or more layers of the said. cloth in a similar manner on top of the first layer, the greater the number of layers, obviously, the better the protection; but three layers have stood the severest tests and been found sufficient. On the exposed surface of the top layer of saturated cloth and while the same is still in awet condition I spread a dry pow der of a substance which fluxes easily under heat, as powdered glass, flint-flux, powdered silica or silicates, and the like, and press this powder into the surface of the sheeting in any convenient way, as with rollers or with a trowel. The whole being allowed to dry hardens and forms a fireproof crust or sheeting over the before-exposed surface of the timber. Were the sheeting alone without the powdered silicates subjected to the action of fire it would turn the fiames and withstand the heat for quite a while; but with the ad dition of the silicates or other fluxing substances a hard crust is formed over the entire heated surface by the combining of the melting silicates with the free magnesium oxid of the above-mentioned cement compound.

In the drawings, B represents the sheeting, composed of a plurality of layers, and b the powdered substance of the surface.

In the application of my invention to the construction of fireproof doors, elevatorshafts, and roofs I propose to construct them as shown in Fig. 2 of the drawings. In this case I interpose between layers of sheeting B thin pieces of timber A, and while I have only shown two layers of the latter it is ob vious that the number may be varied according to conditions.

It is further obvious that my invention is capable of various other modifications without departing from the spirit of the invention.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent of the United States, is-- 1. A compound for rendering combustible substances fireproof which consists of magnesium oxid, magnesium chlorid, boracic acid and sal-ammoniac,substantially as described.

2. The herein-described fireproofing oorn- In testimony whereof I affix my signature pound which consists of the following ingrein presence of two witnesses. dients in substantially the following propor- T T tions, to W117i magnesium oxid one and one- HUGO GALLILOVSKL 5 half pounds, magnesium ehlorid one and one- Witnesses:

fourth pints, boracic acid one-half pint, and W. RUSSELL, J 1

sal-ammoniao one-fourth pint. F. W. GARDEN.

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