US188652A - Improvement in sink and sewer traps - Google Patents

Description

2 Sheets-Sheet 2.

J. H. MACKIE.

SINK AND SEWER TRAP.

N.'188,65Z. Patented March 20,1877.

"`k1"""lo lili 1 IIIIII. x ialllllll A MPETERS. FHOTO-LJTHOGRAPHER, WASHINGTON. D C.

UNITED STATES PATENT EEICE JOHN H-.AMACKIIL OlF OAKLAND, CALIFORNIA.

v IMPROVEMENT IVN SINiK AND SEWER TRAPS.

Specification forming part of Letters'Patent No. 188,652, dated March 20, 1877 application filed Ma'rch 16, 1877.

To all whom' it may concern:

. Be it known that I, JOHN H. MAGKTE, of (Dakland, in the county of Alameda and` State of California, have invented certain,x new and useful Improvements in=Sinkf and Sewer'lrap's; and I do hereby declare that the-following'. is a full, clear, and exact description thereof, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawin gs, and tothe letters ofreferencemarked thereon, which form a part of this specification.

It is well known that the ordinary siphon-t-raps for sinks, sewers, washbasins, baths of houses, and other purposesarelliable frequently to siphon out, and thus allow offensive gases to rise through the trap; and the S or hand traps, which are placed lower down, and sometimes immediately under the basement of houses, are likely to a'ct as barriers to the outllow of gases into the sewer, and, what is worse, soon become partly filled with putrefying matter, and thus form small cess-pools, which generate offensive gases to rise through the upper siphon into the house.

The dangerous practice of ventilating sewers has been sometimes recommended; but, after many experiments, I have completed the following invention, the object of which is to remedy all of the difficulties mentioned by driving the gases down into the sewer to escape at the mouth thereof. My improvements have been practically and successfully tested in California.

My invention .relates to sink-traps or sewertraps; and consists, chiefly, in placing an airchamber above the arch of a siphontrap, and connecting the air-chamber and arch by means of a tube, and also in placing another airchamber below the arch or crown of the siphon, and connecting the same with the discharge-leg or sewer-leg of the siphon, and also with the upper air-chamber; and, further, in the combination of a cylinder or chamber, and a disinfecting-chamber, buoy, and cork, with the induction-pipe of the trap, all of which will be fully understood by the accompanying description.

In the accompanying drawings, Figure lis a front view of my sink and sewer trap. Fig.

2 is a top view of the same. Figs. 3, 4, and 5 are partial or detached views.

In Fig. l, A represents the inductionpipe, which may be connected with the sink in the usual manner, and B represents the dischargepipe passing to thelsewer, which, in my plan, is not provided with the usual lower trap, but has a free circulation of air from the trap to the mouth thereof. The pipe G, Fig. 1, represents the common Siphon-pipe provided with a screw-tap for the purpose of cleaning, if necessary.

Above the crown of the siphon C is an airchamber, F, connected with the siphon by air-tube G; and below said crown is another air-chamber, D, connected with the airchamber F by means of the air-pipe E, and also connected with the discharge-pipe B. By means of this arrangement there is a free circulation of air between the two air-chambers, and also through the crown of the siphon C; and it is therefore impossible to drive all ot' the air or gas from my trap, or to so fill the tube B with water as to get siphon action, and thus empty the pipe U at its lower curve, in connection with atmospheric pressure just below the sink, as is often the case with some other traps. If air or gas rises from the sewer in pipe B, the air-chamber D gives room for the bubbles to burst or escape from the wat-er, which passes on toward the sewer, while the air rises into chamber F; and as soon as water flows over the arch of siphon G, bubbles of air or gas will be caught and carried down into chamber D, from which they may rise again through pipe E, or be carried oft' through pipe B, and so pass into the sewer, which has no obstruction, as already mentioned.

In connection with these air-chambers F and D, I employ a central cylindrical water-chamber,V, having a central tube, A, and containing a buoy, K, which is rigidly connected to a cork, Il. When water ows into the central chamber V the buoy lifts the cork, and when the Water ceases to flow the cork closes the tube G,\vhile some water yet remains in chamber V to prevent the buoy from sinking too low, and thus also to prevent the cork from being forced too tightly home by atmospheric pressure. The water from the sink passes down the tube A,

through the center of the buoy K, thus lifting the cork L as long as the Water ows, but closing the same when the flow of water ceases or is turneoi. When the cork L closes about two inches of water covers the same, and I employ about sixteen inches of water below this cork, thus giving a column of eighteen inches of water to prevent the upilow of gases or air.

The wire O is intended to lift the buoy and cork in case they get foul and require cleaning, and the button P at the top of this wire is fitted to the strainer in the sink W, Fig. 3.

On one side of the cylindrical chamber V is a semicircular chamber, F, already described, and on the other side is another semicircular chamber, It, communicating with the chamber V by means of perforations U, Fig. 3. This chamber R is to be filled through tube S (dotted lines) with some suitable disinfectant, as copperas. carbolic crystals, in time of epidemic, or with common salt in winter, to prevent freezing. When the buoy floats the water rises and passes through perforations U, and thus dissolves a supply of disinfectant or salt, one tilling of which will last two or three weeks.

My improvements are applicable to sinks, wash-basins, bath-tubs, sewer catch-basins at street corners, and other similar purposes. My trap completely breaks siphonage, thus making it impossible for the trap to siphon out, and also preventing the necessity of ventilating sewers. Without the air-chambers the cork L would be drawn in so tight that the buoy would not oat again, and without the buoy and cork or stopper the trap would siphon out.

I do not limit myself to the above-described form and arrangement of parts, but may vary these to adapt my trap to different places and purposes, so long as the same objects are accomplished; and in this application I do not, broadly, claim the receptacle or cylinder V for the wastewater, in combination with the float and cork or plug suspended therefrom and acting automatically therewith, as I have made a separate application for a patent for these devices, dated February 24, 1877.

Having described my invention, I claim- 1. A Siphon-trap having au air-chamber above or communicating with the arch of the Siphon, for the purpose of preventing the discharge brauch of the siphon from completely lling with water, substantially as set forth.

2. In a siphon-trap,au air-chamber connected with the discharge branch of the trap, to allow the 'bubbles of air or gas to burst, and thus escape from the outilowing water, substantially in the manner and for the purposes set forth.

3. The central cylinder, provided with the disinfecting-chamber R, in combination with the buoy K, having the cork L rigidly attached thereto, substantially as and for the purposes set forth.

In testimony that I claim the foregoing as my own I aiix my signature in presence of two witnesses.

JOHN H. MACKIE.

Witnesses THOMAS C. GoNNoLLY, DANIEL BREED.

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