US1085784A - Fire-extinguishing compound. - Google Patents

Description

V UNITED sTATEs PATENT oEmo JONAS w. AYLSWORTH, OE Eas'r ORANGE, NEW JERSEY, ASSIGNOB. To cONEENsrTE COMPANY OF AMERICA, GLEN RIDGE, NEW JERsEY, A CORPORATION OE NEW JERSEY.

Specification Of Letters Patent.

' IiIRE-EXTINGUISHING COMPOUND.

Patent-ed Feb. 3,1914.

No Drawing. Original application filed February 24, 1911, Serial No. 610,455. Divided. and this application filed January 26,1912. Serial No. 673,500.

To all whom it may concern.

Be it known th at I, Jonas IV. AYLswon'rH, a citizen of the United State of New Jersey, have invented certain new and useful Improvements in Fire-Extinguishing Compounds, of which the -following is a description.

My invention relates to an improved fire extinguishing agent adapted to be used in fluid condition in automatic sprinkling systems, hand grenades and thelike, or in the form of dry salts and also in the impregnation'of textile fabrics, wood, etc.

This application is a division of my applicatiOn'Serial No. 610,455, filed Feb. 24, 1911, flame extinguishing material.

In the above entitled application is claimed the process of impregnating fibers and fabrics with my composition for the purpose of rendering the same non-inflam-' mable and water repellent, and the impregnated body itself as an article of manufacture. In this application will be claimed the compound as a fire extinguishing liquid or compound.

My invention is based on a recognition of the valuable properties of certain of the higher halogen substitution products of carbocyclic compounds which form acids capable of forming stable salts with alkaline bases and metals and'with ammonia. The preferred substances of this character are certain of the higher substitution products of phenols and cresols, such as tetra-chlordphenol I These substances are particularly efiicient be- States, and a resident of East Orange, in the county of Essex,

'poses.

' cause they form soluble salts with potash and soda, which allows of'their use in water solutlon and for applying in other ways which will hereinafter be described. These bodies form soluble salts with the fixed alkalies and insoluble or difficultly soluble salts with most of the basic metals, and insoluble to difticultly soluble salts with ammonia. The advantages of these bodies over halogen substitution products which have heretofore been proposed forthe purposes of fire extinguishers and for rendering cellulose fabrics non-inflammable lies in the property of these bodies that water soluble salts. may be prepared therefrom and used as such or in combination with other well-known inorganic water soluble salts, thus combining desirable qualities of both classesof substances. These acid halogen substitution bodies yield flame extinguishing fumes at from 400 F.

to 700 E, andthe mineral salts which may I be used therewith serve to coat the combus tible fabric and thus retard combustion of the same. I

For a fire extinguishing liquid for use in hand grenades, sprinkler systems and the like, solution of the potash or soda salts of 'tetraor pentarchloro-phenol or Of -trior tetra-chloro-phthalic acid may be used alone or in combination with the well known water soluble mineral salts which are used-' for this purpose, such as bicarbonate of soda, borax, silicate of soda, etc. The solu tion may be of any desired concentration up to the saturation point, which for the potash salt of penta-chloro-phenol is about 15% at 7 30 F. and 25% when hot.

In addition to the fire extinguishing liq- I uid described above, my invention may be used in dry state for fire extinguishing pur- For this use the chloro-phenol and chloro-phthalic acids as described, and their metallic salts may be used in the dry state, either ,alone or in combination with other salts.

It will be noted that in each of the ex amples given of the forms of halogenlzed substitution products of carbocyclic compounds, one halfor more of the hydrogen directly attached tothe carbon of the closed chain is replaced by the halogen, and that' also the structure so formed has attached thereto one or more hydroxyl or carboxylic groups,.thus forming an acid. Since half v or more than half of the halogen atoms directly attached to the carbon of the closed chain are re laced by hydrogen, I refer in the claims to these products as higher halogen substitution products.

Having now described my invention What I claim and desire to protect by Letters Patent is as follows 1. As a new article of manufacture, a flame extinguishing agent comprising a mixture of'a Water soluble salt of a higher halogen substitution product of a carbocyclic compound, and an inorganic salt having fire extinguishing properties, substantially as described.

2. As a new article of manufacture, a flame extinguishing agent comprising a Water solution of an alkali salt of a higher ha ogen substitution product of a carbocyclic compound, and an inorganic watersoluble salt having fire extinguishing properties, substantially as described.

3. As a new article of manufacture, a flame extinguishing agent comprising a Water solution of an alkali salt of a higher halogen substitution product of a phenol. and an inorganic Water-soluble salt having fire extinguishing properties, substantially as described.

4. As a new article of manufacture, a flame extinguishing agent comprising a Water solution of a stable Water-soluble salt of a halogen substitution product of an organic-acid, Which is capable of producing flame extinguishing vapors at a temperature of from 400 F. to 700 F. and a watersoluble mineral salt, substantially as de scribed.

5. As a new article of manufacture, a flame extinguishing agent comprising a solution of an alkali salt of an acid halogen substitution body capable of being volatilized by the heat of the fire to yield combustion arresting fumes, and a mineral salt having combustion-retarding properties, substantially as described.

6. As a new article of manufacture, a flame extinguishing agent comprising a water solution of a stable potash salt of pentachloro-phenol and bi-carbonate of soda, substantially as described.

7. As a new article of manufacture, a flame extinguishing agent comprising a water solution of any desired concentration less than saturation, of an alkali salt of a carbocyclic compound and an inorgani watersoluble salt having fireextinguisl1ing properties, substantially as described.

This specification signed and witnessed this 19th day of January, 1912.

JONAS V. AYLSXVORTH.

Witnesses:

DYER SMITH, HENRY SHELDON.