US1338432A - Sewer-trap - Google Patents

Description

L. S. FOERDERER.

SEWER TRAP.

APPLICATION FILED JUNE 21 Patented Apr. 27, 1920.

WITNESSES:

ATTORNEX LOUIS s. FOERDERER, or INDIANAPOLIS, INDIANA.

SEWER-TRAP.

Specification of Letters Patent.

Patented Apr. 27, 1920.

Application filed .Tune 21, 1917. Serial No. 176,226.

To aZZ whom it may concern Be it known that I, LOUIS S. FOERDERER, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented a new and useful Sewer-Trap, of which the following is a specification, reference being had to the accompanying drawings and to the letters and figures of reference marked thereon.

This invention relates to an appliance for trapping and holding matter or substances that may be deposited from flowing water or other liquid, and for preventing sewer gas from passing upward through a drain pipe, the invention having reference more particularly to a trap that is especially suitable for connection with a drain pipe from a kitchen sink, wash bowl or other vessel from which liquid must be drained.

An object of the invention is to provide a sewer trap that shall be so constructed as to be free from joints at which leaks might develop and cause annoyance and expense. Another object is to provide a trap of the above-mentioned character which shall be so constructed as to permit the outlet or overflow pipe to extend away horizontally at any angle that may be required because of interfering walls or posts, and without requiring that the catch basin or vessel be composed of several parts coupled together as in common practice. A further object is to provide an improved sewer trap which may be produced at the minimum cost and be strong, reliable and economical in use.

With the above-mentioned and other objects in view, the invention consists in a sewer trap appliance of novel construction to permit an overflow pipe to be connected thereto at various angles; the invention consisting also further in the parts and combinations and arrangements of parts as hereinafter particularly described and further defined in the accompanying claim.

Referring to the drawings,-Figure 1 is a fragmentary section of a kitchen sink having the improved sewer trap and drain connected therewith; Fig. 2 is a vertical central section of the improved appliance and pipes connected therewith; Fig. 3 is a horizontal section approximately on the line IIIIII on Fig. 1; Fig. 4 is a section on the line IVIV on Fig. 2; Fig. 5 is a section of the principal part of the improved appliance on the line VV on Fig. 2; and, Fig. 6 is a side elevation of the improved sewer trap with a slightly modified overflow pipe.

Similar reference characters on the different figures of the drawings indicate like parts or features of construction herein referred to.

On the drawings the numeral 1 indicates a vessel adapted to hold water or other liquid, being in the present case intended to more particularly indicate a kitchen sink having a drain outlet 2 with which a slip joint nipple 3 is connected.

The improved trap comprises a vessel having a cylindrical wall 4 provided in tegrally in its normal lower end with a bottom 5 on the outer side of which is an integral joint ring or boss 6, the bottom having a screw-threaded cleaning-hole 7. A plug 8 is screwed into the cleaning-hole and has a flange 9 thereon that extends along the front of the joint ring, a gasket 10 usually being placed between the flange and the joint ring to prevent leakage. One portion of the cylindrical wall 4 of the vessel has an inlet-opening 11 therein with which is connected an intake box comprising a flat bottom 12, a side wall 13 and atop 14, the

intake box being cast integrally with the wall 4. The top 14 has a neck ring 15 integral therewith and it has also a screwthreaded aperture 16 that extends through the neck ring. The top 14 has a brace rib 17 that is cast integrally therewith and also with the wall 4 and the neck ring 15. A vertical drain pipe section 18 is secured in the neck ring 15 and slipped over the nipple 3 in practice, being provided with a packing nut 19 to prevent leakage past the outside of the nipple as the water flows through the pipe section 18 on its way to the catch basin or vessel. The normal top of the wall 4 has a head 20 therein which is cast integrally with the wall and has an upwardly extending neck 21 cast integrally therewith, the head having an aperture 22 therein that extends through the neck and in which pipe threads 23 are cut, the aperture being slightly tapering as is customary in order to insure tight-fitting connection with a pipe. The trap vessel is composed of cast metal so as to be durable, and the neck 21 is of such form as to permit it to be slightly expanded without liability to fracture when a pipe is screwed more or less tightly into it.

An overflow connection is provided which comprises a receiving portion 24 that has external screw threads 25 that are connected with the screw threads 23 in the neck 21, an elbow portion 26 extending from the receiving portion; and in some cases a pipe section portion 27 extends from the elbow portion and has an elbow portion 28 to which an outlet portion 29 is connected so as to be parallel with the receiving portion 24 and normally extend downwardly, the outlet portion 29 having internal screw threads into which a drain pipe 30 is screwed and may extend through a floor or elsewhere as may be required. When a goose-neck form of overflow connection is not .desired, the elbow portion 26 has a socket portion 81 connected therewith that has internal screw threads 32 to receive a horizontal drain pipe section.

WVhen installing the improved sewer trap, the pipe section 18 may be readily turned on the nipple 3 so as to set the trap vessel in the required or most desirable position. In case a wall or post would interfere with the swinging of the overflow pipe while connecting it to the trap vessel, the connection is made before the pipe 18'is connected with the nipple 8. When screwing the receiving portion 24 of the overflow connection into the neck 21, it may be turned more or less in the neck, to bring the overflow connection to the required position, as illustrated by broken lines in Fig. 3. Suitable lead mixture or composition, as is used in common practice, is placed on the screw threads before connection 'is made, and when the receiving portion 24 is screwed sufficiently tight into the neck 21 to prevent leakage, it may be further turned if necessary to bring the pipe section 27 to the required angle,

the shape and character of the neck 21 permitting it to be slightly expanded by the force of the receiving portion 24. Thus the trap and the overflow may be readily set in the mere act of making the connection without loss of time and without requiring adjustments of a sectionally constructed trap vessel.

In practical use the water or other liquid flows into the drain pipe section 18 and thence through the inlet opening 11 to the interior of the trap vessel, rising to the lower portion of the section 27, through which the surplus liquid flows. The liquid remaining in the vessel and connections prevents passage of sewer gas therethrough; and sedimentary or heavymatter or substances passing with the liquid, settle to the bottom 5 of the vessel to be removed as is customary after removing the plug 8.

Having thus described the invention, what is claimed as new is- V In a sewer trap appliance comprising a shell threaded in its top portion and constituting a vessel adapted to be connected to an overflow pipe, the side wall of the vessel being integrally continuous but having an aperture therein, the combination of an intake box comprising a fiat bottom and a flat top and also a low side portion integral with said vessel side wall at said aperture, said bottom and top being each broader than the vertical width of said side portion and being longer longitudinally than transversely, a continuous neck ring on the upper side of said flat top integral therewith to receive an intake pipe, and a narrow rib on the upper side of said flat top integral therewith and integrally connected to the side wall of said vessel and to said neck ring.

In testimony whereof I aflix my signature in presence of two witnesses.

LOUIS S. FOERDERER.

Witnesses:

E. T. Sinvius. J. H. GARDNER.

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