US25182A - Improvement in compositions for cement roofing - Google Patents

Description

NITED STATES ATENT Orrica.

JOSEPH DITTO AND HENRY VAN BERGEN, OF NEW YORK, N. Y.

IMPROVEMENT IN COMPOSITIONS FOR CEMENT ROOFING.

Specification forming part of Letters Patent N 0. 25,182, dated August 23, 1859.

.To all whom it may concern:

Be it known that we, JOSEPH DITTO and HENRY VAN BERGEN, of New York, in the county of New York and State of New York, have invented new and useful Improvements in Compound Cement- Roofing; and we do hereby declare that the following is a full and exact description of the same, reference being had to the accompanying samples or specimens.

The nature of our invention consists in the use of the residuum in the manufacture of kerosene-oil with other water-proof glutinous materians-such as coal-tar .oil, turpentine, and varnish, &c.all or either of them to be compounded and spread onto the object to be covered with a stiff brush, and then covered with fine dry mica, the residuum being the product of cannel-coal in the manufacture of kerosene-oil. It is of a tough oily nature and of great endurance, and when compounded with the other materials is peculiarly adapted to sustain the moisture, and by its oily character and toughness offers an entire resistance to water, that is so essential to roofing cement or paint that it may withstand the contraction and expansion of metal and other materials caused by the great changes in our climate.

To enable others skilled in the art to make and use our invention we will proceed to describe its construction and operation.

We take one-third to one-eighth (as per climate) of the residuum in the manufacture of kerosene-oil, and two thirds to seven-eighths of coal-tar, add one twentieth part of pulverized manganese and two pounds of beeswax to forty gallons of the other material, after which the above-named are to be submitted to a steady heat of about 212 Fahrenheit until they are completely dissolved, and all foreign substancesas water, creosote, naptha, benzole-and other objectionable matter shall be removed from the combination. Then add one gallon of common molasses and about one-half a pound of short-cut hair, reduced to a suitable length to mix conveniently. After all are thoroughly mixed together it is ready for use, and in mild weather can be ap-- plied in a cold state with a stiff brush-such as is used in whitewashing. When it has been so applied a moderate quantity of prepared mica or clean sand may be sprinkled over it, and when the first coat is dry and hard a second coat may be put on in the same manner and completely covered evenly with the prepared mica. After remaining two or three days to harden, if it be on tin, the loose mica should be swept oif and the mica rolled or smoothed down,when the roof is completed.

To make an entire roof on sheathing-boards we first cover the boards with tarred paper prepared for the purpose, tacking it slightly, beginning at the bottom of the roof and lapping each joint about two inches, so proceed to the top. Then take Atlantic or any other heavy brown sheeting. After shrinking the same cover the paper, beginning below and proceeding as with the paper, lapping the joints at least two inches, and tacking the sheeting once in one and a half inch. The cement may now be spread on, care being taken that the cloth shall be completely saturated with it, and also to rub it under the cloth at the joints. After the first coat is on a light coat of mica or sand may be sprinkled over it. The second coat may be put on as soon as the first is sufficiently dry to walk over, to do which proceed in the same manner, adding an additional quantity of mica or sand. After the second coat is sufticiently hard the third coat can be applied in the same manner, covering it completely with mica or sand, as the case may be, and after one or two days it may be swept 0E and smoothed down, and the roof is finished.

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

The composition prepared and composed of the materials described in the proportions set forth, for the purpose of forming cement for roofing purposes.

JOSEPH DITTO. HENRY VAN BERGEN.

Witnesses:

WM. A. BACON, GEO. F. GRAY.