US1640058A - Soil-pipe drainage system - Google Patents

Description

Aug. 23,1927. 1,640,058

A. E. STRINGER SOIL PIPE DRAINAGE SYSTEM 2 Sheets-Sheet 2 Filed Jan. 14: 1927 Patented Aug: 23, 1927.

" PATENT OFFICE.

ALFRED I. BTBiniGEB, OF CHICAGO, ILLINOIS.

SOIL-PIPE DRLINA GI exs'rmt.

Application fled January 14, 1 987, Serial Io. 161,058.

This invention relates to piping systems, with special reference/t soil and vent pipe joints, permitting expansion when solidly embedded in concrete or the like.-

Heretofore large fire proof buildings have been constructed with steel frames and hollow tile floors, in which case the shell of the building can be completed to the roof fore the plumbers come in to make their m- 10 stallation, the mechanic having each floor to support and distribute the weight of the pipmg. Within the last few years,- concrete construction has come to the front and in such a case the plumbers must install 15 the piping before pouring each floor and the mechanic is obliged to run his p1pe up in the air above the highest floor that is to be poured, keeping one set of piping suspended in the airy above each floor of concrete. 20 This pi ing all has to be set in place and so suspen ed that the concrete pourers can then come along and pour their concrete enclosing or embedding the fittings into the concrete, so that provision must be made for the expansion in the pipes causedby waste hot water from bathtubs and the like. Because the heavy upstanding piping must be supported by the embedded fitting it is an object of this invention to rovide a soluble gasket of sufiicient har ess and strength to initially support the pi mg from the end, this gasket bein disso ved out during the testing-of the piping after the concrete burdens and supports the p1pfor the expansion of the pi e which would otherwise be apt to crack t e fittings. As an alternative, a yielding supporting gasket can be used which will permit expansion while being stifi' eneugh to support the ori inal dead weight of the pipe.

ther and further important objects of this invention will be apparent from the disciosures in the specification and the accom' panying drawings.

V This invention (in preferred form) is illustrated in the drawings and hereinafter more fully described.

@n the drawings:

Figure 1 is a section through a multi le branch elbow fitting, showing the expansion joints of this invention first set Figure a section similar to lgure l,

ing, the removal of the gasket leaving spaceshowingthe s ace allowed for. lengthwise movement of t e risers due to the removal of the soluble gasket. a

Figures 3, 4 and 5 disclose three illustrative pi ing layouts to show the various locations or expansion joints.

As shown on the drawings:

A multiple branch fittin is shown in Figures 1' and 2 and inten ed to he imbedded in the concrete to re lace a roup of elbows and PS connected y nipp es. The bottom outlet 11 is threaded for iron or steel pipe, while the two vertical outlets 12 and 13 areal-ranged for expansion joints in connection with the strai ht ends of pipes 14 and 15. The side outlet 16 is arranged for the customary oakum and caulked lead joint used with cast iron pipe. The expansion joints on the outlets 12 and 13 comprise a flat inner seat shoulder 17 intended to -receive a soluble or flexible gasket 18 to initially support the weight of the upstanding piping, a suitable so eing wood pul sawdust or sand moulded with a soluble binder, such as Inc. The entire material may be made 0 a soluble material, if so desired. If a yielding or flexible gasket is desired, a cork or rubber compound may be used. The pi e ends 14 and rest on this gasket and t e joint is sealed in the bell mouth shown on the out lets, oakum 19 and-'caulked lead 20 providing a. suitable seal that will allow longitudinal movement of the pipe.

In F igure3 a very comp ete installation is shown using the combined fitting 10 embedded in the. fioor with a threaded pipe 21 used as the main soil pipe below the top floor and having expansion joints with the fittings on the lower floors. The usual cast iron vent pipe 22 is used with a threaded revent pipe 23 having expansion joints on the lower ends thereof, a number of waste pipes 24 leading into a lateral 25 and having: expansion joints at top and bottom.

Figure 4; shows a system resembling Fig ure'3, but having a cast iron soil pipe stack 26 with the threaded steel. revent pipe 23 as before. In this case, expansion joints may be used. or for the soil pipe short lengths thereof may provide sufficient flexibility, depending on the anticipated amount of expansion due to the number of hot water uble gasket material waste connections. in this case the soil pipe is not intended to be inclosed in the concrete but the revent pipe will be, so that ex ansion joints are essential on: the revent, ecause this pipe is frequently also used for a waste pipe and is subject to expansion caused by hot water.

, In Figure 5 cast iron soil pipeis used, both for the main stack 26 as in Figure 4 and on the revent as indicated by the numeral 27. The required. expansion joints are used on the waste pipesand revent as before, these joints being required wherever expansion-is liable to dama e fittings embedded in the concrete. Anot er important point is that these fittings take care of not only the expansion from the change in temperature in the system due to hot water and seasonal variations, but serve as well to avoid breakage due to settling, which occurs in nearly every new building after it has been erected and frequently causes breaks in pipe and fittings rigidly installed and connected in the building. V,

I am aware that many changes may be made, and numerous details of construction may be varied through a wide ran without departing from the principles 0 this invention, and I therefore do not pur ose limiting the patent anted hereon, ct erwise than necessitate by the prior art,

I claim as my invention:

1. .An expansion joint for pipes comprising a bellmouthedsocket, meansinsertable in the bottom of said'socket for temporarily supporting a length of pipe, andpermanent sealing means in said socket around said pipe adapted to permit longitudinal movement of said pipe relative to said socket.

2. A multiple branch pipe fitting adapted to be embeded in concrete, expansion joints on said branches, and means Within said expansion joints adapted to temporarily neeaoes support the weight of the pipe during the erection of a stack of piping.

3., A multiple branch pipe fitting adapted to be embedded in concrete, expansion joints on said branches, and soluble gaskets below the pipe ends in said expansion joints ada ted to temporarily support the weight of t e pipe during the erection of a stack of piping.

4. An expansion joint for a pipe stack comprising a bell-mouthed socket having an interior shelf aligned with the end of the pipe to be inserted therein, a soluble gasket positionedbetween the pipe end and the shelf for temporarily supporting the upstanding pipe stack during the pouring of concrete thereabout, and packin around said pipe and spaced from sai soluble gasket.

5. A pipe stack adapted to be embeded in concrete comprising branch fittings, expansion joints between adjacent fittings, and means adapted to temporarily support the superimposed portion of the stack while pouring concrete thereabout,

8. A pipe stack adapted to be embedded in concrete comprising branch fittings, expansion joints between adjacent fittings, and means within said expansion joints adapted .to temporarily support the superimposed portion of the stack while pouring concrete thereabout.

An expansion joint for a pipe stack com prising a socket adapted to receive a pipe end, said socket. having an interior support for said "pipe end, and a soluble gasket positioned between said pipe end and said support for temporarily sustaining the weight of the superimposed ipe In testimony whereof I have hereunto subscribed my name at Chicago, Cook (Bounty, Illinois.

ALFRED E. STRINGER.

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