USRE3701E - Improved roofing - Google Patents

Description

I -the saine more fully, simila waited gister time @im ROBERT K. KILLE, or MOUNT noLLr,y .NEW JERSEY.

Letters Patent N` 94,689, dat-ed Septemliqr', 1869; reissue No. 3,701, dated November 2, 1869,

imnovnn Enorme.

To all'whom 'it may concern:

New Jersey, have linvented certain new anduseful Improvements in Roofing; and I do hereby declare the following to be a full,"clear, and exact description drawings.

In the construction of slate or shingle roofs it has been found necessary to overlap the pieces of slate or shingle, so as to leave only about one-third of their surface exposed to the weather, in order to prevent leakage at the joints.

Slate roofs have also been made bylayingv the slate on a bed of mortar or cement, first applied to the sheathing.

" --fnrftlre'riatterca slate oriisqim'aient' outer covering is laid dat, with the edgesthereof in contact with each other, there is a greater liability of the cement cracking at4 the joint where protection is. most required, thanat any other point. f

It has also been found quite dificult to obtain a mortar or cement that ris absolutely water-prbcf, or that will remain so, for the length of time required for a roof.

It has, therefore, been the practice'in -the construc-y tion of cement or slate roofs to overlap the slate to the usual extent, before described, to insure-a tight joint.

The object of my invention is `to prevent the cracking of the cement at the joints, and to protect the latter from the action .of the weather, and' to avoid thef great waste of material'which results from the. extent of the overlapping oi the slatefas abovede# scribed.

The nature of my invention consistsin applying lto the slate or shingle, strips of metal, or other thin water-proof material, so as to break joints therewith, said strips being laid above or beneath a mortar, cement, or other coating or bed, interposed between In the accompanying drawings;

Figure 1 is a top view of a section of roofing, onehalf v.being completed, and 'tlieAother only partially iin'shed.

Figure 2, a section at the line x x," g.`1.

To enable others skilled in the art toA make and use 'my improved roofing, I will proceed to describe letters of reference denoting like parts.` v

A represents the sheathing, which is. laid upon the rafters in the usual manner:

The Schedule refered to in these IM Patent and making part of the same.

B B, 86o., a beading around-the edge of'the roof, which projects npwardlya distance equal to the estimated thickness ofthe roofing;.

C C O are strips of tin or other suitable water.-

proof material, which`are represented in thedrawings v as laiddirectly on top of the sheathing, and longithereof, reference being had to the accompanying tudinally of the same, at intervals 'or distances apart nearly equal to the width ofthe slates which are used' D 7D are similar strips, which are laid crosswise of the roof, and at right angles to the strips C, these strips D being apart-a distance not quite equal to the ylength of the slates l E is intended to represent a composition cement, the process of making which will be hereinafter described; and

rFFrepresent-the-slaines The wood roof'being prepared, thelstrips of metal l are laid, ,as described, so as to break joints with the slates, and the composition is then put on over the whole surface, covering thewooden sheathing and the metal strips, toany desired depth.

Instead of arranging the strips underneath thece# ment or mortar covering, it is evident that they may be arranged on top thereof with thesame or like effect.

The pieces of slate are then laid'ou and embedded 'in the cement, the pieces'simply touching at their edges or slightly overlapping, trom-one to two inches, as may be\pr eferred.

I have discovered that the best cement to be used is produced in the following manner:l

I take one bushel of lime, slaked, to which I add three bushels of saumons-halt' bushelof coal-dust, twelve gallons of water, and. half a gallon of molasses. These I miX together to about the consistency of mortar, and apply in that state to the roof.

TheV function performed bymy arrangement of the strips 1), in protecting the join tsgil thegatgtispf two-fold character. www the sheathing and outer-covering, as may be precharacter of the strips themselves, whichare arranged to break joints thereunder.

I y'the use of my-im-prove'ment, I am thus enabled to construct aroof with only about two-fifths of the slate heretofore required.

' The roof Acan be laid at a much less cost than any 'nf the most ap pavements.

proved roofs now in use, as it requires less'labor, and may be done without the employment of highly-skilled labor; the same degree of care onli beingnnecessary asis observed in the laying of foot- What I claimasmy invention, is'.

Thestrips D, arranged with the coating or cement E and the slate or other e'qivalent outer covering,

, so' n to break jointethereunder, substantially in the Y` manner set forth. Y* l v Inl testimony whereof, I have hereunto yset my hand, .thi 20th day of 0ctober,1$69.

. Witnesses: l

HENRY A. J oHNsroN,

E. R. BROWN.

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