US1139647A - Drain. - Google Patents

Description

G. 1. DEHN.

DRAIN.

APPLICATION FILED MAR. 28, 1910.l

Ll?. I Patented May 18, 1915.

GEORGE J. IIIXEIIHN,V 0F GHIGAAEIC),V ILLINOIS.

DRAIN.

Speoieation of Letters Patent.

Patented Mayas?, 1915.

Application mea March as, 1910. serial No. 552,000.

drain-receiver to be properly' disposed with respect to the floor and so that the receiverA may be connected to the sewer-pipe by a fitting of lpredetermined size. In practice, however, it frequently occurs that the Hoor is not alwa s laid at the particular elevation it is inten ed to be, or that the floor when laid and the sewer-pipe are not in correct relation to permit the drain-receiver and trap to be connected to the sewer by the fitting which was intended to be used, and this diiiculty frequently results in the necessity of re-laying a portion of the sewer-pipe or in imperfect drainage resulting from` im` proper disposition of the drain-receiver. In some instances, a fitting of another size must be provided and in others special fittings become necessary to overcome this difficulty. -The present invention designs to overcome this difliculty by providing an adjustable connection in the trap-pipe which permits the drain-receiver to be accurately set in correct position relatively to the floor andthe discharge terminal of the trap-pipe to be properly connected to the sewer pipe, despite any variation in the relative position of the sewer-pipe and the floor which fre quently occurs in practice.

In practice, it has been found that in drain-traps havin a liquid-seal therein for preventing gas rom. escaping from the sewer, when the system is out of use for a .long time, the liquid evaporates and the trap is rendered ineffective to prevent es cape of gas from the sewer, and the invention also designs to provide an'inproved drain-trap which comprises a valve in the receiver-basin, which can be manipulated to close the trap-pipe and prevent gases from escapin from the sewer when the liquid-seal is inoperative. A

The invention further designs to provide sti. drain trap and pipe of improved construc- The invention consists in the several novel features hereinafter set forth and more partlcularly defined by claim at the conclu-sion hereof.

In the drawings-Figure 1 is a central section of an improved drain trap and receiver embodyin the invention. Fig.`2 is a horizontal section on line 2 2 of Fig. 1. Fig. 3 is a section on line 3-3 of Fig. l. Fig. 4 is a perspective of the ring for closing the upper end of the drain-pipe, and to which the seat and cage ,for the back-water valve are secured. Fig. 5.is a perspective of a cage for the back-water valve. Fig. 6. is a section on line 6--6 of Fig. 1. Fig. 7 is a detail section on an enlarged scale of the seat for the back-water valve.

The improved drain-pipe comprises a section 11 having an upwardly extending drain-receiving terminal and a section l2 having a trap-bend 13 therein and a laterally extending discharge-terminal 14, which is adapted to be connectedto a seweripe. The liquid in the trap-bend forms a sea for preventing gases from escaping from the sewer through the drain-receiving terminal of thedrain-pipe. A suitable connection 15 extends upwardly from the laterally extending discharge-terminal 14 and is adapted to receive a vent-pipe, as well understood in the art. rlfhe upwardly extending portion of section 12 of the drain-pipe is slightly enlarged, as at 16, to receive the lower end of pipe-sectionv11, so that one section of the pipe will telescope into the other and ,permit pipe-section 12 to 4be connected to the sewer-pipe and the section 11 which carries the drain-receiver B, to be set in correct relation to the Hoor. That is, if thev floor has been laid in any other than the exact relation with` respect tothe sewer-pipe for a connection or fitting of a certain size, the. drain-pipe may be extended or, shortened by reason of the telescopic connection between the pipe-sections 11 and 12, to adapt the fitting for making a proper connection between the sewer-pipe and the receiver, leaving the. latter properly disposed with respect to the floor, despite inaccuracies or variations in laying the sewer-pipe and Hoor. The upper end of pipe-section 12 is, provided Withlugs or a ange 17 to receive bolts 18. which are adapted to extend through a collar 19 which is adapted to jam a packing ring or gasket 20, usually of elastic material such as rubber, against the inner pipe and to form a water-tight connection between. the, telescopically connected pipe-sections when they have been adjusted into the desired relative position. Thus, it will be seen that .the drain-pipe is readily adaptable for use in buildings in which the sewer-pipe is laid different distances vbelow the floor or other structure from which the drainage is to be conducted to the sewer-pipe. The device is, therefore,

rendered adjustable .and the lnecessity of manufacturing different Afittings according to the different distances between the floor and the sewer-pipe, is avoided. In order to increase the range of adjustment, pipe-section l1 is'formed with annular grooves 21 which facilitate the cutting of the pipe by suitable tools, so that it may be shortened to the desired length when anl unusually short vertical section is desired. l

The upwardly extending inlet-terminal ofy and removably held therein to provide access to the basin and the parts therein. The receiver-basin B f is secured on the pipeange a4' b any suitable means, for example: the mterlockingslip and wedge connection shown in Letters Patent of the Tnited States, No. 935,000, granted to me' September 28, 1909. At each side, the receiver is provided. with a suitable connec-` tion 127 adapted for connection to a drainpipe, `when it is desired to discharge drainvage from a basin or other receptacle 'into the drain-receiver B. By providing a connection 57 at each side of the receiver, a connection may be made at each side and vif but 'one connection or neither of the connections is to be used, they can be closed by a plug bs.

A strainer D is removably sustained on a shoulder d in the receiver, some distance below the top C and lthe purpose of the internal strainer D is to catch matches or material likely to obstruct the passages inthe drain pipe or ,the back water valve.` Inpractice, it frequently occurs vthat in order to dispose of matter which will not pass through the strainer-topfC, the latter willA be lremoved and this `matter will be swept into the drain-receiver. In ,that'event, the` strainer Dywill catch such matter and prevent the back-water valve and the tra from becoming clogged thereby. The strainer D ca n be occasionally cleaned to prevent the .device from becoming clogged.

'engage the elastic seat and form a watertight closure, to preventany liquid from being forced backwardly through the inlet terminal of the drain-pipe.

yIn practice, it has been found that sometimes the water from the sewer is caused to gurgle which resultsin fluttering the float valve, so that the latter will not 'eifectively prevent the back flow of the water through the inlet terminal of the drain-pipe.

By providing an elastic seat-ring, the floatvalve adheres to the seat during this gurgling action and effectively prevents backiow of the water, and furthermore the elastic. seat-ring and ball ,form an effective closure against back-pressure of water in -the drain-pipe. rIhe upper end of pipe-section 11 is enlarged, as at 11, to receive a cage H for guiding the float-valve G. This cage comprises av ring la having linwardly extending wedge lugs h2 which are adapted to pass through notches e2 between outwardly extending wedge-lugs e on the bottom of ring E, and by-slipping ring It on ring. E and then turning said ring relatively to ring E, said lugs may be broughtl into position to wedge and interlock and to' removably secure the cage in position to guide the float valve. Guide-bars h are secured to the ring h and the bottom portions lof these bars serve to limit the downward movement of the float-valve, so thatA it'will not be displaced by water rushing downwardly through the inlet-terminal of the trap-pipe.

The inlet-terminal yof section 1l of the trap-pipe extends above the base of the receiverB tocollect sediment in the receiverbasin and causes the lower 'portion of the receiver to remain llcd 'with water, which tends to lower the temperature of, and preventundue evaporation of the water in the drain-pipe. lIn practice, it hasv been found, however, thati'n some instances, where the drain-pipe is seldom or infre uently used to carry olf drainage, the liquid.' in the seal doesevaporate, so that gases from the sewer will pass up through the drain-receiver, To prevent this from occurring, the inlet-terminal ofthe drain-pipe is provided with a register-valve which, when closed, will -prevent gas from passingto the receiverjfrom the sewer. `Thls register-valve I comprises a perforated annular vertically extending wall provided with lugs i through which screws b5 pass, which secure the ring E on the drain-pipe and also secure the body of the register-valve thereon. A top wall 3 is formed on l,the side-wall A rotary valvemember hasa cylindrical side-wall 4 fitting against the inner face of perforated wall and has perforations corresponding to those in said wall z', so that when the openings in both Walls are in registry, drainage can pass therethrough into the upper end -of the drain-pipe. The rotatable member of this valve is provided with a stem 5 which projects through top-wall 3, and has secured thereto an arm or handle B whereby the` valve may be opened or closed. Stops 7 are provided to limit the play of the valve. The rotatable valve-member is conned vertically between the ring E and the top-wall 3 of the valve-body. When, therefore, the drain is to remain out of use for a long time, or if the back-water valve should become'inoperative, the valve I may be closed and the escape of gas or water from the sewer, when the liquid seal has become inoperative, will be obviated.

The form. of valve set forth provides a. structure in which the openings leading to the passage in the drain-pipe extend vertically, while the top is closed, and resultantly, solid matter passing through strainer D will be directed to the bottom ofthe basin,l

and kept out of the drainfpipbe, thus preventing the latter from becoming clogged.

This feature is an importantl one if theinf tei-nal strainer D is not-employed, or if through over-sight itis not placed in the basin. The central or that portion of this strainer, which. is disposed above the inletterminal of the drain-pipe, is imperforate and only perforated around its outer edge to direct the drainage to the outer portion of the basin so the sediment will be retained in the basin, and the liquid will pass through the vertically extending openings in the register-valve. When the register-valve is not employed, the internal strainer with its imlperforate central portion prevents soild matter from being deposited into the inlet-terminal of the drain-pipe, and when the register-valve is employed, the accumulation of matter on the top of the valve, is prevented.

rIhe invention is not to be understood as restricted to the details shown and described,

since these may be modified within the scope of the appended claims without departing from the spirit and scope of the invention.

Having thus described theinvention, what I claim as new and desire to secure by Letters Patent, is:

l. In' a drain, the combination of a receiver-basin, a drain-pipe connected to receive drainage from said basin, a water-trap, a back-water valve, an upwardly extending register valve secured at the upper end of the inlet-terminal of the drain-pipe for preventing escape of the gas through the drainpipe when the water trap is inoperative.

2. In a drain, the combination of a receiver-basin, a drain-pipe connected to receive drainage from said basin, a water-trap, a back-water valve, and a register-valve comprising a body secured at the upper vend of the inlet-terminal of the drain-pipe, and having an upwardly extending perforated annular wall and a correspondingly perforated coperating valve-member rotatably mounted in said body.

3. The combination of a drain-pipe having an upwardly extending inlet terminal, a back-Water valve in said pipe, a ring secured yto said pipe and provided with a valve-seat,

a valve cage in said terminal, and a wedge and interlocking connection between sald ring and said cage for removably securing the cage and ring together.

4. In a :Hoor drain, the combinationiof a receiver-basin, having an open top, a strainer-top in said opening, and connections at either side below said top, a drain-pipe connected to receive drainagefrom said basin and having a trap therein, shoulders onthe receiver-basin above said inlet connections and the inlet terminal of the drain-pipe, a

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