US2743946A - Sleeves for piping passing through a floor or roof - Google Patents

Description

May 1, 1956 J. H. SCHMID ET AL 2,743,946

SLEEVES FOR PIPING PASSING THROUGH A FLOOR OR ROOF Filed Sept. 19, 1951 2 Sheets-Sheet l F/G. Z.

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May 1, 1956 J. H. SCHMI D ET AL 2,743,946

SLEEVES FOR PIPING PASSING THROUGH A FLOOR 0R ROOF Filed Sept. 19, 1951 2 Sheets-Sheet 2 INVENTOR.

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United States Patent SLEEVES FOR PIPING PASSING THROUGH A FLOOR 0R ROOF John H. Schmid, Erie, Pa., and Fred Heiles, Floral Park, N. Y., assignors to J. A. Zurn Mfg. Co., Erie, Pa., a corporation of Pennsylvania Application September 19, 1951, Serial No. 247,208

2 Claims; (Cl. 285-31) This invention relates generally to sleeves for surrounding vertically extending pipes extending through the floors and roof of a building and it relates more particularly to sleeves which may be waterproofed to prevent water from passing around the pipes to the floor below.

In a pipe flashing sleeve around a pipe on the roof of a building, a minimum amount of deformation of the roof is desirable because any deformation provides a recess for containing water and it also tends to crack .or split waterproofing belts which tend to conform to the deformation. Pipe flashing sleeves heretofore only extended a small distance above the roof, thereby making it impossible to place a fill around the pipe sleeve to conform to the pitch of the roof. It has heretofore been the custom to pass bolts through the flange or clamping ring on a pipe flashing sleeve threadably engageable with threaded apertures in the outwardly directed flange on the sleeve. It was found that after placing the mastic on the sleeve flange and then placing the clamping ring on the flashing and mastic, it was practically impossible to find the threaded aperture in the sleeve flange and, furthermore, these flanges became filled with the flashing material and mastic, thereby making a very undesirable job.

It is, accordingly, an object of our invention to overcome the above and other defects in sleeves for surrounding vertically extending pipes extending through the floors and roof of a building and it is more particularly an object of our invention to provide such a sleeve which is simple in construction, economical in cost, economical in manufacture, and efficient in operation.

Another object ,of our invention is to provide a pipe flashing sleeve which extends a considerable distance above a roof or floor to permit a degree of fill therein to conform to the pitch of a roof.

Another object of our invention is to provide a sleeve for surrounding a pipe passing through a floor which extends upwardly a suflicient distance to prevent splashing water from passing to the lower floor. 1

Another object of our invention is to provide a vertical pipe flashing sleeve which permits expansion and contraction of the pipe passing therethrough.

Another object'of our invention is to provide novel means for securing flashing to a vertical pipe flashing sleeve.

Other objects of our invention will become evident from the following detailed description, taken in conjunction with the accompanying drawings, in which Fig. l is a vertical sectional view taken on the line 11 of Fig. 6;

Fig. 2 is a fragmentary plan View showing the underside of a flange with a cylindrical counterbore and a square aperture for receiving a square shank bolt with a round head;

Fig. 3 is a fragmentary side elevational view showing a bolt with a square shank and a round head for disposal in the aperturesshown in Figs. 2 and 3 for attaching a clamping ring to the outwardly extending flange on our 2,743,946 Patented May 1, 1956 novel pipe flashing sleeve to sealingly engage the water proofing material;

Fig. 4 is a fragmentary plan view of the underside of a flange having apertures with a cylindrical aperture and square counterbore;

Fig. 5 is a vertical sectional view of a bolt with a square head for disposal in the apertures and counterbore shown in Figs. 4 and 5 for attaching a clamping ring to a flange on our novel pipe sleeve to sealingly engage waterproofing material;

Fig. 6 is a view taken on the line 66 of Fig. 1;

Fig. 7 is a vertical sectional view of a modified form of our novel vertical stack flashing sleeve; and

Fig. 8 is a fragmentary vertical sectional view of the sleeve shown in Fig. 1 applied to a pipe passing through a floor.

Referring now to the drawings, we show in Figs. 1 to 6 inclusive a sleeve for surrounding a vertically extending pipe extending through a floor or a roof with means for waterproofing same comprising a cylindrical body member 1 having an outwardly directedflange 2 intermediate thereof, the flange 2 having circumferentially spaced, countersunk apertures 3 for receiving fastening screws 4 to secure the member 1 in an aperture 5 in a floor or roof 6. A depending portion 7 of the member 1 depends in the aperture 5 in spaced relation with the sides thereof but short of the length thereof. The flange 2 also has circumferentially spaced apertures 8 with counterbored square portions 9 on the lower end thereof for receiving the square heads 10 of screw bolts 11. The shanks of the screw bolts 11 extend upwardly from the upper face of the flange 2 when the lower face thereof seats on the marginal portion of the aperture 5 in the floor or roof 6. Flashing 13 is disposed over the face of the flange 2 after the flange 2 is secured in place by the fastening members 4. A clamping ring 14 is disposed over the flashing 13 and the screw bolts 11 are engaged by threaded nuts 15 which bear against the top of the clamping ring 14 to secure it firmly against the flashing 13 to provide a tight seal. A tight seal is thus provided to prevent water from passing downwardly around the pipe 19 to the next floor in the building. Furthermore, the fastening members 4 are disposed in place before any mastic or flashing material 13 is disposed on the top of the flange 2, thereby making the installation of our novel job very simple. The upper end 16 of our novel sleeve extends a considerable distance above the top of the floor or roof 6 and above the flange 2 and it has the upper end 17 thereof belled or flared outwardly to define a pocket 18 between the flared out portion 17 of the member 1 and the outer periphery of the pipe 19 extending upwardly through the sleeve 16. An inwardly extending flanged portion 20 extends inwardly to a diameter approximating the diameter of the pipe 19 so as to form the pocket 18 to receive caulking material such as oakum 21 and lead 22 in a conventional manner. The flared out portion 17 has an an nular recessed portion 23 around the upper inner side thereof to assist in holding the caulking material 21 and 22 in the pocket 18.

The head 10 of the screw bolt 11 may be cylindrical in shape as shown by the round head 24a of the bolt 24 shown in Fig. 3 adapted to nest in the cylindrical counterbore 25 of the square aperture 26 shown in Fig. 2. The bolt 24 has a square shank 27 for disposal in the square aperture 26.

In the installation of the body member 1 in a roof, the flange 2 is seated on the marginal portion of the aperture 5 as shown in Fig. l and it is secured therein by fastening members 4 extending through countersunk, circumferentially spaced apertures 35 in the flange 2. Before the flange 2 is seated on the marginal portion of the aperture 5 of the roof 6, the screw bolts 11 are extended upwardly ice in the flange 2 with the square heads 10 thereof nested in the counterbores 9 of the apertures 8 in the flange 2 so that there is a plurality of upwardly extending shanks of screw bolts 11 circumferentially spaced around the flange 2 of the member 1. Suitable flashing 13 is disposed over the flange 2 and a suitable clamping ring 14 is then disposed over the screw bolts 11 and on the top of flashing material 13. Nuts 15 threadably engage the screw bolts 11 to force the clamping ring 14 against the flashing 13 to provide a tight seal. Caulking material, such as oakum 21 and lead 22, is then disposed in the pocket 13 to seal the space between the upper end of the member 1 and the pipe 19. It will be evident that a certain amount of expansion and contraction of the pipe 19 will be allowed without breaking the seal.

Fig. 8 shows the body member 1 disposed in an aperture 40 in a floor 41. Flashing 42 is disposed between the flange 2 and the floor 41 and screw members 43 are disposed in the apertures 3 in the flange 2. No caulking material is required in this application of the body member 1 inasmuch as it is only necessary for the upper end 16 of the body member 1 to extend a suflicient distance above the floor 41 to prevent water from splashing into the body member 1. A loose, light packing material (not shown) may be disposed in the pocket 18 of the belled out portion 17 if desired.

In Fig. 7, we shown a modified form of our sleeve comprising a cylindrical body 30 having an outwardly directed flange 31 with eireumferentially spaced apertures 32 for receiving fastening members 33 to attach the member 30 in the aperture 34 of a floor 35. The depending portion of the member 30 depends in the aperture 34 short of the bottom thereof and the upper end of the member 30 extends a suffieient distance above the floor so that water or other liquid splashed or flushed over the sleeve will not spill downwardly to the floor below even though there is no sealing material between the pipe 36 and the inner side of the body 30. In the use of this sleeve, unlimited expansion of the pipe therein is allowed.

It will be evident from the foregoing description that we have provided a novel sleeve for surrounding a vertieally extending pipe passing upwardly through the floors and roof of a building to prevent water from passing around the pipes to the floors below, one which has a novel sealing means, one which has novel means for securing flashing thereto, and one which may be secured in place in a minimum of time and which is efficient in operation.

Various changes may be made in the specific embodiment of our invention without departing from the spirit thereof or from the scope of the appended claims.

What we claim is:

1. In combination, a pipe extending through a hole in a flat roof and a cylindrical sleeve concentrically disposed around said pipe to prevent water from flowing around said pipe to the floors below and to provide lateral support for said pipe, said sleeve being of substantially uniform diameter throughout its length and made of heavy rigid cast metal and having an inside diameter slightly larger than the outside diameter of said pipe, an outwardly directed, circumferentially disposed flange attached to the outside of said sleeve intermediate the ends thereof, said sleeve extending below said flange a substantial distance and extending through said hole a substantial distance, said flange having circumferentially spaced holes therein, some of said holes being counterbored from below and other of said holes being countersunk from above, a rigid clamping ring above said flange clamping flashing material to said flange, said clamping ring having circumferentially spaced apertures registering with said ceunterbored holes, bolts extending therethrough with their heads disposed in said counterbores, said countersunk holes receiving screws clamping said flange to said roof, the upper end of said sleeve being belled outward, and caulking material between said belled out portion and said pipe forming a seal therebetween, said sleeve being adapted to engage the outer surface of said pipe to give lateral support thereto.

2. In combination, a pipe extending through a hole in a flat roof and a cylindrical sleeve concentrically disposed around said pipe to prevent water from flowing around said pipe to the floors below and to provide lateral support for said pipe, said sleeve being of substantially uniform diameter throughout its length and made of heavy rigid cast metal and having an inside diameter slightly larger than the outside diameter of said pipe, an outwardly directed, circumferentially disposed flange attached to the outside of said sleeve intermediate the ends thereof, said sleeve extending below said flange a substantial distance and extending through said hole a substantial dis tance, said flange having circumferentially spaced holes therein, some of said holes being counterbored from below and other said holes being countersunk from above, a rigid clamping ring above said flange clamping flashing material to said flange, said clamping ring having circumferentially spaced apertures registering with said counterbored holes, bolts extending therethrough with their heads disposed in said counterbores, said countersunk holes receiving screws clamping said flange to said roof, the upper end of said sleeve being belled outward, caulking material between said belled out portion and said pipe forming a seal therebetween, said sleeve being adapted to engage the outer surface of said pipe to give lateral support thereto, and a second flange clamped to said pipe and engaging the lower surface of said roof in spaced relation to said sleeve and engaging said lower surface around said hole.

References Cited in the file of this patent UNITED STATES PATENTS 501,643 Bignell July 18, 1893 812,543 Buchanan Feb. 13, 1906 862,415 Rohrer Aug. 6, 1907 1,282,535 Bropson Oct. 22, 1918 1,750,019 Moore Mar. 11, 1930 1,803,013 Grimm Apr. 28, 1931 1,844,870 Helling Feb. 9, 1932 2,255,634 Walsh Sept. 9, 1941

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