US380373A - Combined overflow - Google Patents

Description

(No Model.)

- F. A. WELLS.

COMBINED OVERFLOW, SUPPLY, AND WASTE FOR TUBS. No. 380,873. Patented Apr. 3, 1888.

r g A2 I a H A! I \8 l l I a F 5 1 2 J1 i E UNITED STATES PATENT OFFICE.

FRANK A. 'WELLS, OF ALLEGHENY CITY, PENNSYLVANIA.

COMBINED OVERFLOW, SUPPLY, AND WASTE FOR TUBS.

SPECIFICATION forming part of Letters Patent No. 380,373, dated April 3, 1888.

Application filed November 26, 1886. Renewed November 18, 1887. Serial No. 255,457. (No model.)

To all whom it may concern:

Be it known that I, FRANK A. WELLs, a citizen of the United States, residing at Allegheny City, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Combined Overflow, Supply,.and Waste for Tubs, which are fully set forth in the following specification, reference being had to the accompanying drawings, forming a part thereof, wherein- Figurel isaperspective of a bath-tub, showing the supply, waste, and overflow fitting in vertical section. Fig. 2 is an elevation of the supply, waste, and overflow fitting. Fig. 3 is a section through X X on Fig. 2. Fig. 4 is a section through Y Y on Fig. 2. Fig. 5 is an enlarged vertical section of the part of the fitting attached to the tub, of slightly different formfrom that shown in Fig. 1.

A is the tub. V

A and A are two parts which together C0111- prise the supply, waste, and overflow fitting, and include the passages and chambers B, C, D, and E.

B is a well or pocket communicating with the bottom of the tub.

G is a passage which leads out of the well B and extends upward to the height at which the water is designed to be limited in the tub.

D is a continuation of said passage leading down from the highest point of the passage 0 and enteringthe lower portion, E, of the wastepassage. The upper portion, E, of the wastepassage protrudes upward from the bottom of the well B and terminates, preferably, even with the bottom of the tub, and a single strainer, F, having the central depressed portion, F, is made to screen the entrance both to the well B and the waste-passage E. The central depressed portion, F, is made to receive the stopper H, in the usual manner. It is sometimes found more convenient to make the upper portion, E, of the waste-passage of a separate piece of pipe screwed into the lower 5 portion, as shown in Fig. 5, and to form the strainer integral therewith, for a purpose hereinafter explained.

G is the supply-pipe, G and G being the hot and cold water cocks controlling said sup- P y- When the stopper is in the seat closing the mouth of the waste-passage, the supply-cocks being opened, the water enters the tub through the portion 0 of the overflow. When the tub is filled to the height of the partition a between the passages O and D, the part 0 of the overflow is also filled with a column of clear water, and such column forms a complete trap against the entrance of sewer gas from the waste-pipe. The overflow being thus origi- 6o nally charged with pure water from the sup ply-pipe cannot receive any water from the tub, with which it has communication only at the bottom, and any excess of supply will be received first by the overflow, through which it will pass directly to the waste-pipe without passing into the tub. From this it results that none of the suds or scum or other impurities from the bath will ever enter the overflow.

When the tub is to be emptied, the stopper 0 H, being lifted, allows the water from the tub to pass directly into the waste-passage and lowers the level of water in the tub, and so causes the water to fall in the passage 0; but its only outlet is through the well B,up through the outer portion of the strainer F, and thence down with the water from the tub into the Waste-passage. There will thus be an upward current of pure water through the outer portion of the strainer F coming from the pipe 0 So while the tub is emptying through the waste. This makes it impossible for any filth or sediment to be lodged upon the portion of the strainer which covers the entrance to the well B, and of course prevents any foul water from 8 5 the tub ever entering the well and contaminating the supply. Furthermore, the only escape from the well being upward, it can never be emptied in the ordinary operation of the device, and therefore always serves as a trap against the return of sewer-gas from the wastepipe. Atrap may also be provided in the passage D, as at D, as an additional precaution. This fitting is designed to be adapted to be connected with any tub or basin and to be secured with the pipes leading therefrom in any desired direction, and for that purpose it has the end which is to be secured to. the tub provided with'the flange A, which may have a number of bolt-holes, a, so that it may be turned into any desired position and secured to a corresponding flange about the aperture in the tub; but when the strainer is made integral with the part IE it serves to clamp the fitting to the tub and dispense with the bolts. It is also designed to be made of case-iron and interiorly'enameled, and for convenience in so constructing it, as well as for cheapness and ease in repairing, it is made in two principal pieces, A and A. The part A contains the well B and the waste-passage E E. It has the receiving and discharge openings of the overflow both on one side, and at that side it is provided with the flat boss or flange A embracing both said openings. The part A comprises the stand-pipe A and the horizontal branches A A and the supply-pipe connection A, and by means of the partition a is made to contain the two passages O and D of the overflow, said passages being continued, respectively, through the horizontal branches A and A. Said branches are at the end united and encircled by the flange A, which matches and faces the'flange A of the part A, so that the two parts may be easily secured together with the receiving and discharge apertures of thelatter coinciding, respectively, with the branches A and A of the former, and any packing necessary to make the said junction water-tight may be bound between the said flat-faced flanges.

The upper end of the stand-pipe is designed to be connected to any convenient ventilatingflue to carry ofi any gas which may enter from the sewer. This also prevents the overflow from siphoning out the contents of the tub.

The bath-tub with which I have shown this fitting connected is of the form which I prefer, being provided with a niche or recess, a, at the bottom of which is the opening for the attachment of the fitting.

The peculiarity and advantage of this structure are that the supply is not admitted through the waste-pipe, where there is usually adhering to the walls more or less of the filth which forms thescum on the surface of the bath, and is therefore last to pass out, but is admitted through the overflow, in which, by reason of its special construction, as above explained, there is never any other than pure water. In secret waste and overflow devices heretofore used, where the supply is admitted through the same fitting, there has been a considerable portion of the waste-duct intervening between the supply-aperture and the tub, and the first charge of the water was, therefore, usually fouled by the washings from the sides of that portion of the passage, whereas in my device the waste from the tub can never enter the overflow through which the supply comes,and, as above explained, cannot even soil the strainer over the entrance to the well B.

I claim 1. In combination with a tub and the wastepassage leading directly therefrom, an overflow-d not which opens directly into the tub and is wholly distinct from the waste-passage and the supply pipe leading into said overflow-duct, substantially as set forth- 2. In combination with a tub and its wastepassage,an overflow-duct which opens directly into the tub at the bottom of the latter and is wholly distinct from the waste-passage, and which extends upward and then downward, and the supply-pipe opening into the overflowpassage between the tub and the downwardlyextending part of the overflow-passage, substantially as set forth.

3. In combination with a tub, the well B, communicating with the tub at the bottom of the latter, the overflow leading from said well upward and then downward in order to discharge, and the supply-pipe entering the overflow between the well and the portion which leads downward, substantially as set forth.

4. In combination with a tub, the well B, communicating with the tub at the bottom of the latter, the waste-pipe protruding through the well to the level of the tub-bottom and not communicating with the well, the overflow leading fromsaid well upward and then downward and discharging into the-waste-passage, and the supply-pipe entering the overflow between the well and the portion which leads downward, substantially as set forth.

5. In combination with the tub,the overflowpassage having its mouth encircling the mouth of the waste-passage and leading thence upward before discharging downward, the supply-pipe entering the overflow-passage, and the strainer covering said overflow-passage mouth, whereby the overflow current constantly washes the strainer with clear water while wastage is progressing and leaves it clean for the entrance of thesupply, substantially as set forth.

6. In combination with the tub, the overflow leading from the bottom of the tub upward and then downward in order to discharge and the waste-pipe opening into the tub immediately adjacent to the overflow, whereby the clean water from the overflow washes over directly into the waste, substantially as set forth.

7. In combination with the tub, the overflowleading from the bottom of the tub upward and then downward in order to discharge, the waste-pipe opening into the tub immediately adjacent to the overflow, and the supply-pipe leading into the overflow between the tub and the portion which leads downward, whereby water from the supply-current may be passed through the overflow and directly out into the waste and made to flush the mouth of the waste-pipe, substantially as set forth.

8. The part A, having the well and the waste-passage, and having lateral apertures leading, one from the well and one from the waste-passage, both on the same side, and flanged in the same plane, in combination with the part A", having the two passages of the overflow duct terminating laterally in hand, in the presence of two witnesses, at Allethe same direction and corresponding in posigheny, Pennsylvania, this 18th day of Novemtion to the two apertures in the part A, and her, A. D. 1886.

provided with a transverse flange encircling FRANK A. WELLS. 5 both said terminal mouths, substantially as set Attest:

forth. E. L. DAWES,

In testimony whereof I have hereunto set my I FRANCIS J. TORRANOE.

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