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Publication numberUS3415020 A
Publication typeGrant
Publication dateDec 10, 1968
Filing dateMar 27, 1967
Priority dateMar 27, 1967
Publication numberUS 3415020 A, US 3415020A, US-A-3415020, US3415020 A, US3415020A
InventorsWindle Herbert R
Original AssigneeHerbert R. Windle
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Gravel stop spliced butt joint
US 3415020 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

Dec. 1-0, 1968 H. R. WINDLE 3,415,020

GRAVEL STOP SPLICED BUTT JOINT Filed March 27, 1967 INVENTOR HERBERT R. WINDLE A'T'TO R N EY United States Patent 3,415,020 GRAVEL STOP SPLICED BUTT JOINT Herbert R. Windle, 530 W. Cucharras, Colorado Springs, Colo. 80905 Filed Mar. 27, 1967, Ser. No. 626,006 1 Claim. (Cl. 52-96) ABSTRACT OF THE DISCLOSURE A gravel stop splicing section for butt joining the anchor strip and upwardly extending flange of two lengths of gravel stop. The splicing section has a flat anchor strip with a bent edge forming a depending flange folded back upon itself and extended upwardly beyond the anchor strip to form .a single thickness rib over which the hemmed flanges of the gravel stop are clamped in abutting relation.

The present invention relates generally to gravel stops, that is, a structural piece adapted to be applied to the edge of a roof for preventing loose roofing material, such as gravel or other solid aggregate which is applied to the roof, from being lost over the edge thereof. Gravel stops are commonly used in connection with roofs which are horizontal or only slightly inclined and on which the socalled built-up type of roof is applied, as by applying alternate layers of tar and tar paper, such layers then being covered by an aggregate mixture such as gravel. A flat metal anchor strip having an upwardly bent flange which is bent back upon itself and depends for a distance alongside the fascia board is commonly interlaced between the layers of tar paper at the edge of the roof to act as a stop to retain the loose aggregate material on the roof. If the gravel stop could be made in one continuous piece, there would be little likelihood of any problem developing but since, as a practical matter, the strips of gravel stop material are produced in relatively short lengths, the joints made between adjoining sections tend to create drainage problems because the joints of the prior art are formed by merely overlapping the ends of two identical pieces of gravel stop material. More specifically, the small space between the overlapped metal ends acts, by capillary action, to literally invite water to seep and run between the pieces of gravel stop and thence between the layers of roofing built-up, all to the end of damaging and destroying the integrity of the roof.

It is therefore the principal object of the invention to provide an improved gravel stop joint which will actually route water away from the built-up roofing materials and carry it over the side of the roof where it can fall harmlessly to the ground.

A second object of the invention is to provide a gravel stop joint which will increase the strength of the joint and which will also improve its appearance by utilizing a butt joint principle as contrasted to the prior practice of overlapped joints.

Other and still further objects, features and advantages of the present invention will become apparent upon a reading of the following detailed description of a preferred form of the invention taken in conjunction with the accompanying drawings in which:

FIGURE 1 is a cross section of a typical built-up roof showing the roof joist, fascia board, gravel stop and roofing material.

FIGURE 2 is a rear fragmentary elevational view of the splicing section of the present invention showing the splicing section of the present invention with a length of gravel stop shown clamped to the upstanding rib of the 3,415,020 Patented Dec. 10, 1968 splicing section and an .adjoining section of gravel stop shown in dotted lines.

FIGURE 3 is a cross sectional view taken along lines 33 of FIGURE 2.

FIGURE 4 is a prospective view showing two lengths of gravel stop clamped into nearly abutting relationship on the rib of the splicing section of the present invention.

Referring first to the prospective view of FIGURE 4, the commonly used gravel stop construction is indicated generally by the reference numeral 4. It comprises an .anchor strip 6 of metal having an upturned flange 8 which is bent back upon itself and continued downwardly and perpendicular to the strip 8 to form a depending skirt 10. In the process of forming a roof edge, it is necessary to join together several lengths of the gravel stop 4 and one such joint is shown in FIGURE 4. The purpose of the present invention are achieved by utilizing a novel splice section 12 onto which both adjacent lengths of gravel stop material are clamped in mutually abutting relationship by each being overlapped on the splice section 12.

As viewed in FIGURES 2 and 4 the construction of the splice section 12 can be seen to include a metal strip 14 of approximately the same width as the strip 6 of the gravel stop 4, having a downwardly turned flange 15 which is bent back upon itself and extended upwardly past the level of the strip 14 to form a single thickness rib 17 onto which the hemmed flange 8 of the gravel stop is clamped.

Utilizing the foregoing described construction for a joint allows the moisture which seeps through the butt joint between two lengths of gravel stop to follow a course which leads outwardly of the strip 14 and down into the open ended hem formed by the section flange 15. The moisture may be released from either of the open ends of the flange 15. It is thus seen that with the drain path provided by the splicing section 12, there is no tendency for water to migrate inwardly toward the layers of roofing material. It may also be noted that the butt joint which is permitted by the use of the splicing section provides more rigidity to the joint and creates a smooth flat joint between adjoining lengths of gravel stop.

Having thus described the several useful and novel features of the improved gravel stop of the present invention in connection with the accompanying drawings, it will be seen that the many worthwhile objectives for which it was designed have been achieved. Although but a few of the several possible embodiments of the invention have been illustrated and described herein, I realize that certain additional modifications may well occur to those skilled in the art within the broad teaching hereof: hence, it is my intention that the scope of protection afforded hereby shall be limited only insofar as said limitations are expressly set forth in the appended claim.

I claim:

1. An improved gravel stop joint comprising:

two adjoining lengths of gravel stop each having:

a horizontally disposed strip adapted to be interleaved between .adjacent layers of roofing paper;

a raised double flange perpendicular to the strip and attached thereto, said flange having a hemmed upper edge;

a splicing section having:

a flat horizontal strip; a depending hemmed flange perpendicular to and integral with the strip of the splicing section; and

a raised single rib member comprising an upward extension of the outside of said section flange;

the gravel stop flanges b raised rib and 'abutted together.

References Cited UNITED STATES PATENTS eing clamped onto the said Ager 52--16 Waring 5296 Cheney 5258 X Sharp 52-300 X HENRY C. SUTHERLAND, Primary Examiner.

C. G. MUELLER, Assistant Examiner.

Dawson 5297 X 10 52-58, 300, 726

US. Cl. X.R.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1126854 *May 9, 1914Feb 2, 1915Oscar PetersonRoof-gutter.
US2725832 *Jan 8, 1951Dec 6, 1955Huntington Glen HSheet metal roofing
US2734602 *Mar 16, 1953Feb 14, 1956 dawson
US2777405 *Jul 8, 1953Jan 15, 1957Drez AgerRoof gutter and downspout assembly
US3086324 *Aug 25, 1958Apr 23, 1963Allan CheneyGravel stop and flashing for roofs
US3093931 *Feb 2, 1960Jun 18, 1963Reynolds Metals CoGravel stop and building assembly employing the same
US3187464 *Jun 13, 1962Jun 8, 1965Fiberglass Reinforced ProductsFascia strip
USRE24245 *Dec 6, 1951Dec 4, 1956 Roof gutter
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3731439 *Apr 19, 1971May 8, 1973Hickman W P Co IncWater dam flashing for roof wall
US4411120 *May 4, 1981Oct 25, 1983Ellis Billy HAluminum shingle accesories
US4418505 *Jan 13, 1982Dec 6, 1983Boral (Usa) Inc.Starter strip for a tile roof
US4472913 *Sep 22, 1983Sep 25, 1984W. P. Hickman CompanyNailerless roof edge
US4488384 *Apr 23, 1981Dec 18, 1984W. P. Hickman Co.Roof edge construction
US4592176 *Jul 23, 1984Jun 3, 1986Alprokon Promotie En Ontwikkeling B.V.Roof edging system
US4641476 *May 13, 1985Feb 10, 1987W. P. Hickman CompanyRoof edge construction
US4759157 *Feb 6, 1987Jul 26, 1988W. P. Hickman CompanyRoof edge construction
US5251411 *Apr 15, 1992Oct 12, 1993W. P. Hickman CompanyRoof edge anchoring devices for building structures
US5414965 *Sep 1, 1993May 16, 1995W. P. Hickman CompanyRoof edge anchoring devices for building structures
US5515653 *Feb 3, 1993May 14, 1996Smart; Wayne G.Roof starter corner
US5904007 *Sep 6, 1996May 18, 1999Terry John TrapnellTermite barrier
US6427390Oct 18, 2000Aug 6, 2002F. Boyce ThiesFoundation flashing for use in building construction
US6941706May 10, 2002Sep 13, 2005Monier Lifetile LlcVented eaves closure
US7424790Mar 14, 2005Sep 16, 2008Monier, Inc.Vented eaves closure
US7757440Aug 26, 2008Jul 20, 2010Boral Lifetile Inc.Vented eaves closure
US8112945Mar 22, 2011Feb 14, 2012Boral Lifetile, Inc.Vented eaves closure
Classifications
U.S. Classification52/96, 52/300, 52/716.2, 52/58
International ClassificationE04D13/15
Cooperative ClassificationE04D13/15
European ClassificationE04D13/15