US1721715A - Roof flashing - Google Patents

Description

July 23, 1929. 5 1 SCHINDLER 1,721,715

ROOF FLASHING Filed Feb. 14, 1927 Patented July 23, 1929.

UNITED STATES SAMUEL J'. SCHINDLER, OF SAN FRANCISCO, CALIFORNIA.

ROOF FLASHING.

Application led February 14, 1927. Serial No. 168,167.

This invention relates to improvements in roof-flashing and has for its primary object the provision of a water-proofin shield adapted for use in water-proofing tie joints around vent-pipes and other pipes, which ordinarily project through openings formed for their reception in the roofs of buildings.

The joints around these pipes are ordinarily water-proofed by the use of various forms of shields or flashing generally constructed of galvanized iron, or like noncorrodible materiakand consist of built up sections having their joined edges solderedtogether to form any desired configuration.

An important object of my invention is to provide a shield device of the class described that is constructed from a single piece of material formed to the desired configuration by folding and pressing the material to the required form. i

Another object of my invention is to provide a device of the class described that is positively water-proof, cheap to manufacture, and much more durable than the ordinary water-proofing device having soldered sections.

Additional to the foregoing objects is the provision of a. device o the class described, that has novel means for constricting and sealing the opening in the neck formed for the reception of the pipe, after the device is in place upon the pipe.

Other objects and advantages of the invention will be apparent with reference to the subjoined specification and accompanying drawings, in which Figure 1 is a top plan view illustrating the preferred embodiment of my invention, showing it applied to a pipe which is shown in cross section;

Figure 2 is an edge view illustrating the method of forming gores or pleats in the blank by lapping the material upon itselfV to acquire the desired configuration;

Figure 3 is a similar edge view showing an additional gore formed in the material, as shown in Figure 1;

Figure 4 is a side elevation illustrating the somewhat frusto-conical shape of the device when formed;

Figure 5 is a side elevation illustrating a form in which the central section is formed abruptly from the center of the blank;

Figure 6 is an enlarged sectional detail view, taken on theline 6-6 of Figure 4, and

illustrating the method of lapping the blank to form the gores; and

Figure 7 is a sectional detail of the pipe clamping means formed on the neck of the device, the section being indicated by the line 7 7 of Figure 4.

Referring with greater particularity to the drawings the numeral 10 designates a rec* tangular blank preferably foi-ined of heavy gauge iion-corrodible material, such as galvanized iron, the whole being of frusto-conical shape having a centrally disposed neck 11 forming a central opening 12 adapted to embrace any pipe, such as a vent pipe 13, here shown in cross section.

The neck 11 is formed by goiing the blank radially from points adjacent its corners and intermediate its corners with a plurality of radially arranged gores 14, 15, 16 and 14', 15, and 16, These gores being formed by lapping tlie material upon itself as shown in Figures 2, 3, 4 and 6, with the excess material formed on the upper side of the blank and with the lower or under side flush, thereby adapting it to rest flat upon the roof of the building.

As shown in the drawings, these gores form re-enforcing ribs having considerable width at their outer ends and gradually tapering toward the neck 1l of the device, the blank material being preferably lapped twice as clearly shown in Figure 6 to forni snug fitting sections 17, 18 and 19.

The neck 1l is provided with a vertically arranged V-shaped clamping member or loop 20 cramped from the material forming the neck of the device and being normally open as shown in Figure l. When the device is slipped over the pipe 13 the opening 12 einbraces the outer surface thereof and the outer edges 21, 22, 23 and 24 contact the roof of the building. The device is then secured in place upon the pipe by pinching the loop 20 together and bending the crimped section upon itself to the position shown in Figure 7, which causes the opening 12 to contact tightly about the pipe and form a water proof joint between the pipe and neck ofthe device.

Having thus described my invention, and an embodiment of it, in the full, clear and exact terms required by law, and believing that it comprises novel, useful and valuable improvements in the art to which it pertains, I here state that I do not wish to be limited to the precise construction and arrangement of the several parts, as herein set forth, as the same may be variously modified by a skilled mechanic Without departing from the spirit and scope of my invention as deiined in the 5 appended claims.

What I claim and desire to secure by Letters Patent of the United States, is the ollowing, towvit: v

l. A roof iashing comprising a conical 10 sheet metal seamless tube provided with a series of spaced pleats each becoming Wider toward the bottom of the cone.

2. A roof iashing comprising a conical sheet metal seamless tube provided with a series of spaced pleats each becoming wider toward the bottom of the cone, and a flat plate integrally joining the base of said cone and over Which plate said pleats extend in radial arrangement.

SAMUEL J. SCHINDLER.

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