US527505A - Patrick norton - Google Patents

Description

(No Model.)

I P. NORTON.

ROOFING PLATE.

No.5 27,505. Patented owls. 1894.

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I a F F 43 111.11: :9" J. J. j; :j a

time; NQRTON, or JE SEY crrY, NEW ERsEjY.

1 v 0Hug-PLAT E srnormcanon forming ate Letters Patent No. 527,505, dated October 16, 11394.

Application filed A ril 21,1894. Serial No. scales. (No model.)

To all whom it may concern.- a I I Be it known thatI, PATRICK NORTON, of Jersey City, Hudson county, New Jersey, have invented an Improved Roofing-Plate, of which the following is alspecification.

This invention relates to an improved corrugated plate for roofing'and siding, which is' constructed with a view of preventing water jure the articles upon which they fall, andv from condensing on its lowerface. densation of water or sweating, is objectionable for various'reasons, the principal ones being that the drippings are apt to inthat the water adhering to the plates is apt to accelerate their decay. For avoiding the ,injuriousresults of such condensation and dripping, roofings have already been devised consisting of corrugated metal plates to which are secured, ongtheir under side, corrugated layers of non-conducting material such as felt; but hitherto these layers of non-conducting material ;have been secured to the metal plates by continuous contact of the surfaces, as by cementing the whole of the upper surface of the non-conducting material to the under surface of the metal. This would form a very durable roofing plate were it not for the changes of temperature; but owing to the great difference in the expansibility of the metal and non-conducting material with .a rise of temperature, such roofing plates will be short-lived. The difierenc'e in expansibility is rendered the more efiective in breaking up and destroying the union between the metal and non-conducting material from the fact that the former is exposed to great ex:

tremes of heat and cold while the latter is'not- This conlower of non-conducting material, which layers are secured to each other at sparsely scat-- tered points, as by rivets.

to expand or contract between the points common to both, the rivet-s, and there is no tendency whatever to become loose. Afurther advantage of this means of union is its economy of manufacture, and further advantages are that there is an air-space between the two layers for,ventilation, and t that rust spots from the upper layer are notliable to strike through to the lower. i

In the accompanying drawings: Figure 1 is a top view, partly broken away, of a pair of my improved roofing plates. Fig. 2 is a section on line 2, 2, Fig. 1; Fig. 3, an enlargedsection on line 3, 3, Fig. 1; Fig. 4, a bottom view of a modification, and Fig. on line 5, 5, Fig. 4. The letter (it, represents a corrugated shee metal plate to the lower side of which is secured a layer of corrugated asbestos paper, roofing felt, or similar material, which is a poor conductor of heat. This lining is not, bodily connected to the roofing plate by an adhesive, but it is secured to such plate at intervals, by means of a series of parallel corrugated metal bands 0, arranged at suitable distances apart and extending along the lower face of the lining. The bands c, are attached to the plates a, by rivets c, passingthrough the lining b, and they serve not only to ofier a retaining surface for the rivets, but also to prevent the lining from sagging.

The best way to manufacture my roofing plate'is to subject the sheet a, lining b, and

bands 0, simultaneously to the action of the 5 a Section 5 This arrangement entirely obviates the above mentioned defects, for eachlayer, being corrugated, is free corrugating rolls, so that all parts are shaped together. 1

p In Figs. 4. and 5, the bandstc, are provided with a covering (1, composed preferably of the same material as the lining b, and which prevents 'the bands themselves from sweating. The covering (1, is folded around the edges of the bands, before the latter are riveted to the plates at. It will be seen that in this way, the

entirevroofing plateis' protected at the bot-' tom by the lining, so that sweating and eon-- sequent dripping are rendered What I claim is V A roofing plate Comprising a. corrugated meimpossible.

tallic plate, a similarly-corrugated, non-cone ducting lining, such as asbestos, on the under side of the said plate, and similarly corrugated strips or hands extending the width en'ds bent round'the edgesof the plate, and

.- PATRICK NORTON.

- partly by an intermediate rivet, sul stantiall y as described.

Witnesses:

WMUT. ENRIGHT, F. v. BRIESEN.

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