US2027134A - Flashing - Google Patents

Description

Jah. 7,` 1936. y A. s. wElNsrElN 2,027,134

FLASHING Original Filed Aug. 18, 1930 2 Sheets-Sheet l Q @a Q Jan. 7, 1936. A. s. wElNsTl-:IN

FLASHING original Filed Aug. 18. 1930 2 Sheets-SheaecI 2 gmmntqz (A. S. Weinstein,

Patented Jan. 7, 19736 UNITED STATES PATENT OFFICE FLASHING Abraham s. Weinstein, Allston, Mass'.

Application August 18, 1930, Serial No. 476,121

Renewed November 10, 1934 y 24 Claims.

The present invention relates, generically, to flashing, and more particularly to that type of flashing commonly known as through flashlllg Flashing of this character is Vusually made of sheet copper, and is used in building construction in conjunction with the t usual layer of mortar between brick joints, or between brick `and stone joints, to stop any seepage of water i down throughjthe masonry.

' The usual practice is to incorporate a flat sheet of metal, usually copper, into the mortar joint at the desired place. This results in a break in the mortar bond at that joint, as mortar does not satisfactorily adhere to copper. The 4ordinary type of flashing possesses the further disadvantage of tending to slide out of place along the mortar makingit difficult to align the several sheets of the flashing.

Among the objects of the present invention is to provide a new and improved type of flashing so formed that it will` obviate the above-enumerated disadvantages of the. usual flashing,-in other words, will not cause a break in the mortar bond at the joint where it` happens to be embedded, but` will instead enhance the effectiveness of such joint. It will further be provided with means to overcome any tendency to move in any direction with respect to the mortar in which it is incorporated. l

A further object is to provide a iiashing having a simple but effective means thereon for connecting `it to and holding it securely against relative movement with respect to an adjacent sheet of ashing.

It is still another object of the present invention to provide a novel and improved flashing having the above-described characteristics, and in addition, possessing all the advantages of the old type flat sheet copper flashing, which is `easily andv readily joined to other ashings.

These and other objects,` which willbe apparent to those skilled inthe art to which the present, invention pertains from aV perusal of the detailed description thereof hereinafter given, are attained by the embodiments of the invention hereinafter disclosed, consisting of the construction and novel combination and arrangement of n. Vparts fully described below, illustrated in the ac- .companying sheets of drawings and pointed out Vin the claims hereunto appended.

In the said drawings, i y t Fig. 1 represents a partially broken-away plan view of a portion of one formv of a strip ofashing embodying, the present invention;

Fig. 2 represents a sectional viewthrough a portion of a brick wall, illustrating the said form of flashing inserted between two courses of brick;

Fig. 3 is a sectional view taken through Fig. 2 5 at `line 3-3;

Fig. 4 is a top plan view of a portion of modified form of flashing; and

Fig. 5 is a sectional view through Fig. 4 at line 5 5.

Fig. 6 is an enlarged sectional view along line 6 6 of Fig. 4.

Similar reference numerals indicate similar parts throughout the several views of the drawings.

Reference numeral Ill indicates a portion of a strip of flashing constituting one embodiment of this invention.V Strips I0 may be preferably constructed of sheet metal, copper being usually employed. Each strip IIl comprises a main body 20 portion II, which is coarsely ribbed or corrugated as at I2, and endor flange portions I3 which are finely ribbed or corrugated as at I4.

The coarse corrugations I2 are preferably extended across the body portion Il, as shown, in 25 the form of sinuous curves. These may conveniently be formed by passing the originally nat copper -sheet from which`the flashing is preferably formed, through suitably formed rollers, or in any other desirable manner. The -formation of the coarse corrugations I2 ob-4 'viously causes a considerable shrinkage in the ,width of the original copper sheet.

To compensate for this shrinkage inf width, it is necessary to corrugate the end or flange portions I3 also. By the use of suitably designed rollers, the Vfine corrugations I4 may be formed simultaneously with the formation of the other corrugations I2. y

Ideally, it is desirablel that the flange members I3 be flat, so that they may be easily bent rand joined'to other iashings. However, by the formation of the ne corrugations I4, the shrinkage in Width of the strip is compensated for, and a substantially fiat and easily workable 45 flange is obtained. As shown in the drawings, 'there are three complete oorrugations I4 for.

each coarse corrugation I2.

The corrugations I2 obviously prevent move- 'ment of theiiashing, relative to a layer of mor- 50 'tar upon which it may be placed, in a direction transversely of said corrugations, and because of the curved or sinuous character thereof, they also prevent movement inal direction longitudinally of the generalextent of saidoorrugations. 557

Several strips of this form of iiashing l0 may be conveniently connected together by merely placing the end ribs or corrugations l2 of one strip over and in coincidence with the end ribs or corrugations I2 of the next adjacent strip. It is obvious that the several strips will thus be held securely against relative movement, transverse or longitudinal, with respect to each other.

If the flashing were constructed merely as has been thus far described, and were inserted into a layer of mortar l5 between two courses of brick i6, such as is shown in Fig. 2, the ashing would be securely held against movement with respect to the mortar in any horizontal direction. However, because of the nonadherence of I'the mortar to copper, it would be possible to lift the upper course of brick I6 and its subjacent layer of mortar directly off of the flashing strip. In other words, the mortar bond between the two courses of brick would be broken by the 'insertion therebetween of the strip of flashing.

To obviate this diiculty, the ashing it] is formed, in addition to the above-described corrugations, with a plurality of hollow frustoconical protrusions orV buttons I7. As is shown in Figs. 1 and 2, the buttons I1 are struck, or otherwise conveniently projected, out from the corrugations l2 in rows and in alternately up- Wardly and downwardly extended relation.

The hollows of the upwardly extended protrusions or buttons l1 are substantially filled with mortar when the flashing ID is laid upon the mortar l5; and because of the frusto-conical, or dovetail-like, construction thereof form a mortar lock which prevents the said stripl of ashing from being lifted upwardly from the subjacent layer of mortar.

A similar mortar lock joint is formed by the ldownwardly projecting buttons Il between the flashing I and its surjacent layer of mortar. It is thus seen that Vinstead of breaking the mortar bond, the flashing constituting the present invention enhances this bond by being securely locked to themortar both above and below it.

Coming now to the modification illustrated in Figs. 4 and 5, this comprises an originally fiat sheet 2B of metal, preferably copper. The middle or body portion of this sheet is formed with a plurality of spaced raised portions orr areas 2l.

These, in effect, form a very coarsely corrugated body portion. The raised areas 2i are connected to the body portion 20 by means of divergingly inclined walls 22. The formation of the middle corrugated portion causes a. shrinkage in the width of the sheet of metal from which the strip of flashing is being formed.

To compensate for this shrinkage, the end or flange portions 23 of the flashing are finely corrugated, as shown at 24.

At a plurality of spaced places therealong, the upper and lower portions of walls 22 are projected in any convenient manner in oppositely-extended directions to form a plurality of dovetail-like projections 25, as is clearly illustrated at the right hand end of Fig. 5.

These projections 25 form mortar lock joints, 'in substantially the same way as do buttons I1 (above-described), and prevent the iiashing from breaking the mortar bond at the point where the iiashing happens to be embedded.

Adjacent one end thereof each strip of flashing is formed as shown with a slot26 adapted to receive the flat end 21 of an adjoining strip.

-The strips are cut at the slotted'ends at a point just beyond a wall 22, and the flat ends 21 are so proportioned that when they are housed in slots 25, end walls 22 of the adjoining strips of flashing are in superposed and locked relation, the locking being effected by the snapping into coincidence of the dovetail projections 25. In this way, an effective joint for connecting two strips of ashing in securely locked relation is provided.

Having described the invention, what is claimed and desired to secure by Letters Patent is:

l. A flashing comprising a strip of sheet metal having a coarsely corrugated body portion and a finely corrugated end portion substantially coextensive therewith, said strip having means thereon adapted to interlock and key mortar disposed on eachside of said strip.

2. A flashing adapted to be embedded in a layer of mortar or the like comprising a strip of sheet metal having a coarsely corrugated middle portion, finely corrugated end or flange portions, and protrusions displaced from the body `courses of masonry, a layer of mortar therebetween, a section of sheet metal fiashing partially embedded in said mortar and having an exposed portion extending therefrom, said embedded portion comprising a coarsely corrugated portion having a plurality of projections displaced therefrom and adapted to form mortar lock joints, and said exposed portion including a plurality of relatively ne corrugations.

4. In combination with a layer of mortar or like binding material, a strip of flashing thereon, rib-like means on said strip to prevent movement thereof relative to said layer in the direction of one plane, and additional means to prevent movement of said strip in the direction of a plane at right angles to said first-named plane, said additional means being dovetail-shape in cross section.

5. The combination set forth in claim 4, said additional means projecting from said firstnamed means.

6. In combination with a layer of mortar or like binding material, a strip of flashing thereon, means on said strip to prevent movement thereof relative to said layer in any direction in one plane, andV dovetail-like means adapted to prevent movement of said strip in the direction of a yplane intersecting said first-named plane, said second named means being displaced from an intermediate portion of said iirst named means.

7. The combination defined in claim` 6, said first-named means comprising a plurality of relatively coarse corrugations.

8. The combination defined in claim 6, said first-named means comprising a plurality of sinuously-extending corrugations.

9. The combination defined in claim 4, said additional means comprising a plurality of hollow frusto-conical buttons.

10. A flashing of Ythe character described comprising a sinuously corrugated body portion, finelyV corrugated flange-forming portions, and a plurality of hollow frusto-conical buttons displaced from said body portion.

11. The construction defined in claim 10, certain of said buttons being displaced upwardly from said body portion, and. others of said buttons being displaced downwardly from said body portion.

12. A flashing comprisingY a strip of sheet metal having a plurality of spaced areas displaced ded in a layer of mortar therefrom, divergingly inclined walls connecting said displaced areas tothe body of said strip, and means projecting from said walls and adapted to form mortar lock joints.

13. A hashing of the character described comprising a body portion and hnely corrugated end or harige portions, a plurality of spaced displaced portions on said body portion connected 'to the latter by inclined walls, each of said walls comprising a' plurality of dovetail-like projections formed therein.

14. In combination, a pair of hashings each having an inclined wall, a plurality of dovetaillike projections on said walls, said walls being adapted to be arranged in superposed coincidence, whereby the said hashings are joined together against relative movement.

15. A strip of hashing comprising a plurality of inclined walls, each wall having a plurality of means displaced therefrom and adapted to form a mortar lock joint, and a slot on said hashing adapted to receive the hat end of an adjoining strip of hashing.

16. A hashing of the character described comprising a portion adapted to be entirely embedor the like, hollow frusto-conical projections displaced from said portion for interlocking and keying the mortar above and below said portion, and a second portion substantially coextensive with said hrst portion and adapted to extend from said mortar and for easy connection to other flashing or the like.

17. A sheet metal hashing comprising a body portion and a harige portion, said body portion comprising a plurality of spaced discs raised from said body portion and connected thereto by tapering walls, said flange portion being substantially hat andadapted to be joined to other hashing or the like.

18. A strip of hashing comprising a relatively coarsely corrugated body portion adapted to be entirely embedded in a layer of mortar or the like, and relatively finely corrugated end or hange portions adapted to extend from said layer for ready connection to other hashing or the like, said coarsely corrugated body portion being of greater vertical extent than said hnelyv corrugated portions, whereby said body portion constitutes pocket means adapted to prevent horizontal displacement of said flashing in any direction relative to said layer;

19. A strip of sheet metal flashing adapted to be embedded in a layer of mortar or the like including a body portion having a plurality of sets of protrusions adapted to prevent movement of said hashing in any direction relative to said 'portion layer, ribs disposed between the several sets of protrusions and adjacent each end of said strip, whereby means is provided for joining contiguous strips of hashing by superposing said end ribs.

20. A hashing comprising a continuous strip of sheet material provided with oppositely disposed overhanging projections and depressions upon opposite faces thereof, each projection and depression embodying therein a side wall extending entirely therearound and offering a resistance against a movement of the hashing within a wall in a plane parallel to the opposite faces of the hashing which will be equal in all directions.

' 21. A hashing comprising a continuous strip of sheet material provided with a plurality of overhanging projections and oppositely disposed depressions on a surface thereof, the side wall of -said projections and depressions extending entirely therearound, and a plurality of beads extending transversely across said strip.

22. A sheet of hashing comprising a transversely corrugated body portion adapted to be entirely embedded in a layer of mortar or the like, a hange portion of single sheet thickness and substantially coextensive with said body portion extending from the latter, whereby said hashing may be readily locked to other hashing or the like, the corrugations of said body portion terminating adjacent said hange portion, whereby pocket means are provided in said body for preventing horizontal displacement of said hashing in any direction relative to said layer.

23. A sheet of hashing comprising a body portion adapted Ato be entirely embedded in a layer of mortar or the like, and a hange portion of single sheet thickness and substantially coextensive with said body portion extending from the latter, whereby said hashing may be readily locked to other hashing or the like; said body portion being provided with a plurality of transversely arranged corrugations terminating adjacent to and merging into said hange portion; said ,corrugations comprising a wall displaced from said body portion and disposed in a plane substantially parallel to the plane of the latter, and inclined wallsA connecting said displaced wall with said body portion and adapted to serve as keys for mortar.

24. The construction defined in claim 23; said inclined Walls comprising portions disposed in diherent directions of inclination.

ABRAHAM S. WEINSTEIN.

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