US146608A

US146608A - Improvement in fire and water proof roofs

Info

Publication number: US146608A
Authority: US
Publication date: 1874-01-20
Anticipated expiration: 1891-01-20

Description

T..N\=.w. Fire and Water-Pruof Roofs. No, 146,503I Parentedllamzmlu.

WITNESSES e "mmm .N UNITED STATES PATENT OEEICEo TOBIAS NEW, OF NEW YORK, N. Y.

IMPRo-vEMi-:NT IN FIRE AND WATER PROOF RooFys.

Speciicationforming part of Letters, Patent No..146,608. dated January 20, 1874 application led f November 8, 1873.

To all whom it may concern Be it known that I, ToBIAs NEW, of the city, county, and State of New York, have invented a new and Improved Fire and Water Proof Roof; and I do hereby declare that the following is a full, clear, and exact description of the saine, reference being had to the accompanying drawing forming a part of this speciiication. A

The object of this invention is to provide means for protect-in g buildin gs (having interior wooden timbers) from lire as well as from water;` and consists of a roof made as hereinafter described. l

A represents the rafters or roof-timbers; B,

Ithe planking; 0, one of the outer or parting walls; and I), a felt layer covered by a coating ot' asphaltie cement, E, which may or may not be used between the timber B and a layer of concrete or equivalent fire-proof material, F. This stratum of lire-proof material is laid on the felt or planking B of the roof. In practice, this fire-proof laye-r F will be about two inches in thickness. G is a piece of timber or plank, which is bedded in the nre-proof substance F,

l and has its upper side tlush with the surface thereof. On this is placed a water-repellent covering, H, and over this an ordinary grayfel, slate, tin, or other roof, I.

The rationale of thus combining with the wood I5, iirst, a fire-proof layer, F, next, a water-repellent, H, and, thirdly, an ordinary gravel or other roof, is this:` The fire-proef.

layer, although ordinarily turning water, is a slow absorbent, and would allow a gradual dampness t0 pervade it, and, consequently, the wood-work; hence I use over itan absolute water-repellenaH, which will not only turn an ordinary rain, but will entirely pre vent the passage therethrough of moisture during the longest spell of wet weather, or the gradual melting of snow upon the roof. This water-repellent H, however, is itself injuriously ail'ected by the sun, which, to a greater' or less extent, soon destroys its eiiciency it' not protected; hence I superpose any ordinary roof, I, upon the layer H.

Having thus described niy invention, what I claim as new, and desire to secure by Letters Patent, is-

The combination of the fire-proof layer F adj aeent to the wood-work, the water-repellent layer H next to this, and the outer roof I, as and for the purpose specified.

\ TOBIAS NEWT.

Witnesses II. N. TAFT, ALEX. F. ROBERTS.