US1252573A - Roof connection for drain-pipes. - Google Patents

Description

' I am aware,

CHARLES L. HOLT, F LAWRENCE, MASSACHUSETTS, ASSIGNOR 'I'O HOLT ROOF CONNECTION 00., OF LAWRENCE. MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

ROOF CONNECTICS N FOR DRAIN-PIPES.

Application filed October 8, 1915.

To all whom it may concern:

Be it known that l, (l'nAnu-xs L. HOLT, a. citizen of the United States, residing at Lawrence, in the county of Essex and State of Massachusetts, have invented an lm irovenient in Roof Connections for Drainipes, of which the following is a specification.

This invention relates to certain improvements in roofazonnections of the type shown in my prior Patent #1,059,671, dated pr l 22, 1913, in which a drain pipe is Connected to the roof of a building; which is flat or inwardly inclined, to conduct rain water therefrom, down through the interior of the building.

"In the device of my prior patent, the primary ,purpose was to provide a means whereby the joint between the roohflashing and the pipe would not be subiected to strain or impaired in case of relative niovenient oi the roof and drain. pipe,

and, While this device is entirely suitable, so far as for buildings in which the roof is of wood, or is of ordinary thickness, itcannot be conveniently employed, and frequently cannot be employed at all in build-' ings having roots which are constructed of cement, particularly if the roof is of considerable thickness, or in cases where the drain pipe is so located-that access thereto from above the roof, only, is possible, when the roof connection is to be made.

in my said prior device a. slip joint is employed in the drain pipe in close proxinlity to the roof, 'This arrangement is ohjected to in some cities where calked joints,

only, are permitted in a drain pipe.

'lhcprmiary ol' ]ect of my present invention is to provide a. form of roof connection r of tl'ie-dcvi especially adapted for 163 the features of advantage )If m prior patent, an i which use in connection with cement roofs, or roofs of considerable thickness, and is adapted for use in those speial instances where the entire connection,

installed drain pipe must be to a previously the roof.

made from above A further ob ect of I11 provide a construction w rich will obviate the employment of a slip joint in the drain pipe.

I accomplish these objects, primarily, by

providin a roof ntting Wit-l1 means whereby,

when it 15 once lowered into the roof open- Y u Specification of Letters Patent.

invention is to I apattern maybe cast Patented Jan. 8, 1918- Serial No. 54,850.

ing, it will become automatically connected with the roof, without regard to the depth of the opening, and further, by locating the slipj0int connection between the drain pipeand the fitting, instead of in the pipe itself. and by arranging the parts so that lilo (:ulinections which must be made at the time of installation may be made from above the roof.

For a more complete understanding of my'invention, reference is made'to the accompanylng drawing, in whic Figure 1 is a vertical, central sectional view on the line 1-1 of Fig. 2, of a roof fitting embodying my invention.

Fig. 2 is a plan view thereof, partly cut away.

Fig. 3 is a vertical sectional view, at the line 3-3 of Fig. 2.

Fig. 4: is a detail-sectional view, on an enlarged scale, taken at the line 4--+ of Fig. 2. i

Fig. 5 is a side elevation of a portion of the fitting, illustrating one of the locking devices.

'thickness, the particular thickness shown,

with relation. to the fitting, being immatw rial. 'l-Vhile an opening for the fitting may be formed through the roof, after the roof "has been laid, in practice,'it is generally known exactly where the drain pipe is to be connected to the roof before the roof is laid, so that, preferably, at the time it is laid, a form is placed in the position which the fitting is to occupy, and in the cement in this position. To this end, "I preferably provide a sheet metal casing 2, which is shaped to receive the fitting thereafter to be installed, and which extends from the top to the bottom of the roof, so as to provide an opening therethrough, said casing becoming a, permiment part of the structure. It will, however, be obvious that may be removed, and which. will serve praetically the same purpose as the casing.

(ill,

extending tubular projection 5.

According to myinvention, I provide a roof fitting 3 which is made of cast iron, 01' other suitable metal, and, in the preferred form of my invention, is made somewhat in the formof a circular bowl,;. I rim of which is provided with a laterit "projecting flange 4, which is adapted to support the fitting upon the surface of. the roof. A central passageway is formed through .the bottom of the bowl portion of the fitting, and integrally formed pipe or tubular projections- 5, 6, constitute the walls of said passagew y, and extend above and below the bottom of the bowl, the projection 5, above the bottom of the bowl, terminating approximately midway of the height of the bowl, and the projection (5, below it, extending down far enough to provide a packingreceiving recess, the bottom of which is formed y an inwardly projecting shoulder 7, from the inner edge of which a tubular projection 8 depends. The passageway through the fitting is thus of substantially greater diameter above the shoulder 7 than below it. A. sleeve 9, which is preferably of brass or copper, is arranged within the passageway of the fitting, and normally extends from the upper end of the tubular projection 5 to a point approximately midway 0f the lower tubular projection. 8, the external diameter of said sleeve being slightly less than the internal diameter of said -projection 8, so that the sleeve may move readily therein, and an annular recess will be provided between the sleeve and the fitting, above the shoulder 7 A )air of lead packing rings 10, which are filled with graphite grease, or the like, are placed, one on the other, in this annular space, so that they rest on the shoulder 7, and an iron ring 11 is then clamped down on said rings, by a gland 12, which is forced down by .means of bolts 13, which pass through the flange of the land and are screwed into the upper end 0 the upwardly A lead washer 14 is preferabl placed between,the projection 5 and the ange, and the parts are so arranged that, when the flange of the gland ring is firmly clamped against the Washer 14, the lead packing rings 10 will=be sufiiciently compressed to make a watertight joint between the sleeve and fitting, and yet permit the sleeve to slide to a'limited extent therein, without disturbing the waterti ht joint which has been formed. The glan is preferably of somewhatless thickness than the space in which it; is located, while its flange aperture fits on the sleeve as closely as practicable, and the spaces between the gland and sleeve and between the gland and fitting are preferably filled with a-suitable packing w, of permanent nature, such as raphite-grease, and which will. rmit t c sleeve to slide within the glen and indicated in also exclude water from entering such spaces. The upper end portion of the sleeve 9 is provided with a series of apertures or recesses 9 for a purpose which will hereafter appear. 7 A pair of ribs 15 are integrally formed with the fitting, and are arranged in parallelism at opposite sides of the bowl portion, so thatthey depend from the flange 4 in as close proximity to the side walls of the fitr '75- .ting as practicable, as shown in Figs. 2 and 5 Two pairs of do 16 are ivoted on the inner or adjacent si es of sai ribs, one d being located at the end of each rib and one being arran ed to swing outwardly from so the sides of t e-fitting, by the action of gravity, and, to make this action more positive, springs 17 are connected thereto in suitable positions, stop lugs, as 30, being arranged to limit the outward swinging movement of said dogs. In practice, the drain pipe 18 will have been placed in position, so that it will terminate a short distance from the under side of the roof, as indicated in Fig. 1,'and when 96 the connection with the roof 1s to be made, a len h of iron pipe 19 will be cut off to a suita le length, and lowered through the roof opening,-so that it will seat-in the hub of the pipe 18, and then the usual calked lead joint will be formed between said pipes 18 and 19. If the sheet metal frame 2 has been previously cast into the roof, as shown in Fig. 1, notches or indentations 2' will be formed in the sides thereof, in position to 10!- be engaged b the do s 16, respectively, as

ig. 6. e fittin .will then be lowered into the opening, so t at its "flange 4 will rest on the upper side of the roof. The dogs 16 are arranged so that their end portions are normally'held to project be yond the ends of the lugs 15, and, as the casing 2 is made just lar enough to receive the fitting, said dog's wil be ressed inward, as the fittingis lowered. T e indentations 1.1.0 or notches 2' in the casing,- are so located that, when the fitting is supported in the casing by its flan 4, the dogs will engage the casing in sai notches 2', as illustrated in Fig. 6, locking the fitting against upward '11'5 movement therein. As shown in Figs. 1 to 4, the internal diameter of the sleeve 9 is substantially greater than the external diameter of the pipe 19, and said-pipe 1918 made of such a length and is so located that, when the fitting is lowered into place, its sleeve 9 will be assed onto the pi e 19, a which latter will 0 cut' to such lengt that itsup erend will be flush "with the upper. end 0 the sleeve, when the fittin is in posi-. tion, and an annular space will 6. provided between the outer walls of the iron pipe and the inner walls of the sleeve. The upper ends of the iron, pipe andsleeve are t en connected by a calked lead joint, to form gag upper ends of the pipe and sleeve; At the same time, the molten lead will flow into the recesses 9, which have been formed in the upper end of the sleeve. The lead, when cool, is then forced into the space and adjoining recesses by the well-known method of ealkin so that a rigid, water-tight joint r is forme between the pipe and the sleeve.

The usual sheet copper fiashin 22 is placed on the flange l, and extends down onto the roof, and is connected to the fian e by means of a ring 23, which is securely clamped on the upper side of the flashing by-holts 24, which are passed therethrough and screwed into the flange 4. Said ring 23 is provided with afiange, or rib 23', on its inner edge, which acts as a gravel stop, tar and gravel being subsequently laid on the roof to the level of the edge of this flange, as indicated in Fig. 1.

The sleeve 9 is of such length, and so arranged at the time of installation, that it ex- .tends several inches both above and below the packing rings 10. In case, theriore, of relative movement. of the iron. pipe and the roof, due, for example, (0 the expansion of the pipe or the sinking of the roof, the sleeve 9 will be caused to slide within the fitting, in contact with the packing 10, without impairing the tightness of the connection be-' lween the pipe and the fitting, In case the sleeve should not slide ,.readily in the surrounding packing, no strain will be placed on 1 he joint between the flashirig'and fitting, as the fitting is lockcd,.against upward movement with relation. to the roof, by the dogs .16, while the flange 4 prevcnts any downward movement. relativethereto.

A strainer :25 is preferably secured on the upper side of the gland ring 12, by means of bolts, which pass through ears 2(Lprojccting from the edge of its llaiige, the strainer being of such size and so held that its inner edge is at a short distance beyond the "edge of the flange of the gland, as indicated in l igs. 1 and 2. l i

\Vith the. above-described eonstruction oi': fitting, an annular space is provided in the howl about the upwardly projecting'pme 5,

and the gland ring-fiange thereon. In case of heavy rainfall, the gravel on an ordinary lar-aiul-gravcl roof. is frequently washed- .inl'o-the drain pipe, so that the traps are choked, and damage caused. Withthe above-described construction, however gravel which washed over the gravel-stop retained in the bowl of the fit.-

amount of gravel which would be likely to be washed into the bowl would not more than fill the same, the possibility of dilfieulty on account of gravel being washed into the drain pipe, is practically obviated. :htiCllIIlllltlllOUS in the bowl may be readily removed.

As-sliown in the drawing, the fittin 3 is slightly smaller than the space provi ed to receive it in the casing 2, so that it fits loosely therein. This arrangement is advantageous in that it permits lateral expansion of the fitting, without danger of breakage.

To ex lain the advantages of this feature more in ly, the provision of a sheet metal casii'ig, which is cast in the cement of the root, at the time the cement is -placed in position, and into which the fitting may later be placed, is advantageous over the method of casting the fitting directlyint-othc cement. not only on account of considerations of convenience and expediency, which are many,'but also on account of the fact that it the cast metal fitting were embedded directly in the cement, it wouldbe likely to cause damage, or be damaged on account of the different coefficients of expansion of iron and ot cement.

With the above-described arrangement, ample provision is made for the expansion and contraction of the fitting,,indcpendently of the cementuin which it is suspended. By providing a space of substantial width' between the casing and fitting, provision is also made for lateral adjustment oft-he litting, when necessa-ry to bringit into alinement with the pipe.

in Fig. 8 a somewhat modified form of fitting is illustrated, the bowl-shaped formation being omitted, this arrangement being preferable where the fitting is used for a rent pipe connection, instead of for a drain pipe. With this exception, the construction is practically the same as that already described. the fitting27 being provided with side walls which extend directly from the level of the gland ring flange 28 to the level of the edge-flange 29 thereof.

---Tn Fig. 8. the casing 2 is not shown and the dog .16 is shown as directly engaging the cement of the roof, which is ordinarily suilicientlv rough to serve the same function as the indentations 2' in the casing.

With the above-deseribed construction, it will be apparent that all the connections may be made. including the joint between the pipes 18 and 19, if necessary, from above the roof. so that it will he immaterial how thick the roof may be. It will be further observed that the provision of slip-joints at prising a roof fitting having a tubular passageway therethrough, means on said fitting to engage the roof to hold the same against movement relative thereto, eith-n u or down, a sleeve in said passageway having a slip-joint connection with the walls thereof, and a drain pipe insertible in said sleeve, and adapted to receive a packin between its exterior and the interior of t e sleeve, 'to form a rigid. water-tight joint therebetween. i

2. A'roof connection .for drain pipes comprising a roof-fitting having a tubular passageway therethrough, means to engage the roof to hold said fitting against movement relative thereto, either up or down, a' sleeve disposed in said passageway and having a slipjoint connection with the walls thereof, a drain pipe extending into said sleeve -from its lower end and of substantially less external diameter than the internal diameter of the sleeve, to provide an annular recess tlierebetween, andfa soft metal packin in said recess, to form a' ri 'd, water-t1ght joint between the sleeve an pipe.

3. A roof connection for draln pipes comprising a roof-fitting having a tubular passageway therethrough,means to engage the roof to hold said fitting against movement relative thereto, either up or down, asleeve disposed in said passageway and having a slip-joint connection with the walls thereof, a drain pipe extending into saidsleeve from its lower end, andtermi'nating at its upper end adjacent the level of the upper end of the sle'ev c, said pipe being of substantiall less external diameter than the internal d1- ameterof the sleeve, to provide an annular recess the etween, and said sleeve having internal. r esses at its upper end openin into said annular recess, .and ,a softmeta packing forced into the upper end portion of said annular recess, and the recesses of the sleeve, to provide a rigid, water-tight connection between said sleeve and pipe.

- 4.. A roof connection for pipes comprising a roof-fittin havinga' passageway therethrough, an liaving'a laterally projecting flange at its upper end to support the same in a roof-opening, locking means on said fitting below said flange movable with relation to the fitting to permit the fitting to be lowered into the roof-openinggaml to engage the sides of such opening to lock the tting against upward movement thereln, and a pipe having a yieldable connection with the fitting.

5. A roof connection for drain pipes comprisin a roof-fitting having a passageway theretirough, a supporting flange. projecting laterally therefrom to support the fitting in a roof-opening, a pair of dogs on thy fittingautomatically movable to permit the fittingto be lowered into the roof-openingand to engage the sides of such opening, to

" aeasing embedded therein'and openin means I prevent upward movement thereof, and a pipe having a. yieldable connection with the fitting.

6; A roof-fitting for pipes having a passageway therethrough, and a laterally rojecting flange for supporting the same In a roof-opening, locking devices on the ex terior of the fitting beneath the flange movable to ermit downward movement of the fitting in the roof-openin and normally actuated to engage the wal s of such opening to prevent upward movement therein, a pipe, and expansion 'oint-connecting means between said ipe and fitting.

7. A' rooftting for pipes-having a laterally projecting flange to support the same in a roof opening, and having a tubular passageway therethrough, a drain pipe having a slip oint connection with the fitting, a.

pair of lugs on the outer side of the fitting at opposite sides thereof, and beneath said flange, and a dog pivoted on each lug in oppositely disposed positions and normally actuated to engage opposite sides of the roof opening to hold the fitting agjainst upward movement therein and arranged to swing upwardly to permit the fitting to be lowered in the roof opening.

8. A roof connection for'drain pipes cornprising a fitting adapted and arranged to be held in a roofagainst up and down move ment relative thereto and having a tubular passageway therethough, a sleeve in said passageway having a slip-joint connection with the walls thereof, a drain-pipe disposed in said sleeve with its upper end terminating at approximately thelevel' of the upper end thereof, and a calk joint between the respective exterlor and interior upper end-por- 10. In combination with'a concrete roof, a bowl-shapedouter casing embedded in the roof and opening at its top to the upper side of the roof and at its ,bottom to the under side thereof, a similarly-'shapedrooffitting located in said casing and having an ed flange for supporting t in said casing locking-means for holding it against removal therefrom, and a drain piiipe having a yieldableconnection with said tting.

11. In combination with a concrete roof, at its top to the'upper side of the roof an at its bottom to the under side thereof, a metal roof-fitting supported in aeid' peeing and arranged for lateral expansion and adjustment thereimumeans tohold said fitting against either up or down movement with relation to the roof, and a drain pipe having a yieldable connection with said fitting.

12. In combination 'with a concrete roof ha ing an opening therethrough, a fitting having an edge flange resting on the roof to suspend the same therein, a flashing plate on said flange and extending onto the roof, a ring having an upwardly extending lip to form a gravel stop, means to clamp said ring on said plate and to clamp the plate on sai flan e, means to hold said fitting against up'-.

war movement in said opening, and-a drain pipe having a yieldable connection with said fitting.

13. A roof connection comprising abowl r V shaped fittin held in the roof a ainst relative up or own movement an havinga water-tight connection between-the roof surface and its rim and an outlet passage leading from its bottom, a tubular projection surrounding said passage and extending upwardly from the bottom of the fitting; to

\ provide a gravel catch-basin thereabout, and

' outlet passage to a drain ipe having a yieldable connection with sai outlet passage. 4

v 14. A roof connection comprising a bowlshaped fittin held'in the roof tive u or own movement an having a watertight connection between the roof surface and itsrim and-an outlet passage leadagainst role-- in said-space and a gland ring extending into said space and havin a flange extending over said tubular promotion and clamping bolts extendingthrough said flange and .into said projection, to force the gland against the packing. I p

In testimony whereof, I have signed my name to this specification.

CHARLES L. HOLT. Witness:

L. H. p

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