US136105A - Improvement in ventilating water-closets and urinals - Google Patents

Description

A 12.11.01 SMITH. Ventilating wa terrfil osets a'nd Urinals AM. PHOTO-UTHOGIMPHIL ea In: (osaamvs moms) STATES PATE 1 f nonnn'r 1). 0." SMITH, or WASHINGTON, nrsrnroron OOLUMBIA..

IMPROVEMENT I'N VENTILATING WATER-CLOSETS AND URINALS.

- Specification forming part ofLeiters PatentNo. 136,105, dated February 18, 1873.

To all whom it may concm:

Be it'known that I, ROBE T D. 0. SMITH, of Washington, in the District of Columbia-,have

invented anew and useful Improvement in the Mode of Ventilating Water-Closets and Urinals; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying rawing, in which-- --'-Figures 1 and 3 represent in diagram the an upward flow of air is produced by means of a furnace or other source of heat when the necessary current would not be produced by natural causes. Said shafts have been connected with the apartments to be ventilated by communicating ducts, whereby air has been exhausted from said apartments. I am aware that sewers have also been ventilated in the same way; I therefore desire to be understood as not claiming anything as to the principles involved; but only as to the special application of those principles to accomplish the ventilation of water-closets, urinals, sinks, traps, and other depositories for ofiensive matters, in the particular manner hereinafter fully set forth.

That others may understand fully the practical means which I propose to employ for this purpose I will particularly describe them.

A represents the bowl, say, of a water-closet. B is the soil-pipe to carry away the matters deposited therein, and deliver them into the sewer. (J is the stench-trap.

When human excreta is deposited in the bowl A the heat of this excreta rarefies the air within the bowl and soil pipe above the trap C, and the foul odors are therebyimmediately projected upward into the apartment, from which no system of ventilation hitherto employed has effectually removed them, except by an outlet, D, in the pipe immediately below the bowl A, inclining the same upward so thatwategwill not rest therein, said outlet bein g connected with a ventilatingflue in any convenient part of the building. For waterclosets within dwellings, the kitchen smokeflue or a flue immediately contiguous thereto would be best'for this purpose, as such flue would be warmed daily, and therefore would possess at all times an upward flow of air, and, consequently, adownward flow-through the bowl A would be insured, as shown by the arrows. Generally any long vertical flue will, if open at the bottom, insure sufficient draft.

If not convenient to connect the outlet D with a chimney orflue it may be connected with the rain-spout; and there will be an additional advantage with this arrangement-t. 0., the water escaping from the rain-spout will flush out the trap O and pipe B during every rain-fall, while at all times, when rain is not falling, the rain-spout will conduct the odors from the closet to the open air at the rain-gutters.

There are many ways of inducing a draft by mechanical means if natural causes prove not to be sufficient in any case. These means, such as fans, furnaces, &c., are well known and require no description; but the least troublesome and least expensive is the constant flow of the water always supplied to a watercloset or urinal. This will act in the way of the well-known Tromb, and the induced air current will escape through D, and whatever pipe or duct that it is connected with.

It may be necessary, for the production of the best result in this last-named way, to enlarge the soil-pipe around the outlet D, as at d, shown in'Fig. 2, to allow a slight accumulation of air at that point.

In Fig. 2, the heavy arrow with black disk at its center represents ..the flow of water; all

other arrows indicate air currents.

To apply my improvement to urlnals and other depositories referred to will not require any further invention; but I nevertheless think it advisable to illustrate one or two modifications of the construction of water-closet bowls and urinals.

Figs. 6 and 7 exhibit two urinals, in the former of which the exhaust or ventilating current is taken upward, being drawn under a screen, S, with the escaping water and urine.

In the latter the escaping water andurine with the ventilating-current all pass downward, and the air escapes through a lateral opening, as heretofore described.

In Figs. 3 and 4 are shown modifications of water-closet bowls, wherein the ventilating outlet is made a part of the bowl itself instead of being a-separate attachment applied to the soil-pipe, as in Fig. 2. This is thought to be the preferable mode, because the bowl then becomes a complete manufaeture, and the ventilating-pipes and attachments are then located above the fioor and at all times easily accessible. In Fig. 5 this is shown as applied to a bowl with a water-pan, such as are commonly used for water-closets within dwellings, whereby foul odors will not be caught in the bowlease to escape into the apartment whenever the pan is lowered.

It may sometimes happen that the air current passing down through the seat may be unpleasantly strong while the closet is being used. In such cases a bowl with an air-inlet valve, Y, may be employed, said valve being openedby depression of the seat W or other portion of the -apparatus, so that while a person is sitting upon said seat said valve will be open and air be admitted thereat; but at all other times said valve will be closed and the draft aironly admitted through the seat. This I think to be the preferable method; but others may prefer to make the valve, or an openin g similarly without a valve, the constant inlet for the air current.

Having described my invention, what I claim as new, is- V 1. A bowl, A, provided with an enlargement or chamber d, and an outlet, D, substantially as shown, and for the purpose set forth.

2. In combination with the bowl A and outlet D the opening V, with or without a valve, substantially for the purpose set forth.

R. D. 0. SMITH. Witnesses:

J. O. LvoNs, GEO. BARTLE.

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