US1257331A - Closet attachment. - Google Patents

Description

E. E. DUFF.

CLOSET ATTACHMENT.

APPLICATION FILED DEC. 8. 1914- RENEWED"1ULY I6. 1917. 1,257,331. Patented Feb. 26, 1918.

15 "0' J 0 J 1% j Inventor r I Attorneys UNITED STATES p g EDWARD E. DUFF, OF SEATTLE, WASHINGTON, ASSIGNOR OF ONE-HALF" T0 FRED T. INGEESOLL, OF SEATTLE, W'ASHINGTON.

CLOSET ATTACHMENT.

Application. filed December 8, 1914, Serial No. 876,113.

To all whom it may concern:

Be it known that I, EDWARD E. DUFF, a citizen of the United States, residing at Seattle, in the county of King and State of Washington, have invented a new and useful Closet Attachment, of which the following is a specification.

The present invention appertains to a closet attachment, and aims to provide a novel and improved attachment for water closets, which is operable to withdraw or remove the foul gases from the bowl or hopper, the present invention being an improvement over the closet attachment disclosed in my Patent Number 1,137,196 of April 27 1915.

It is the object of this invention, to provide a device of the nature indicated, which may be readily applied to the parts of a water closet, and which is so constructed, as to be operable automatically, when the seat is occupied.

It is also Within the scope of the invention, to improve the structure generally and in its details, to thereby enhance the utility and efliciency of the device, and whereby the device will be comparatively simple and inexpensive in construction, as well as being practical and serviceable.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, can be made within the scope of what is claimed, without departing from the spirit of the invention.

The invention is illustrated in its preferred embodiment in the accompanying drawing, wherein Figure 1 is a side elevation of a water closet illustrating the present attachment applied thereto.

Fig. 2 is a fragmental plan view thereof, with the seat in raised position.

Fig. 3 is an enlarged sectional view taken on the line 3-3 of Fig. 2, parts being shown in full.

Fig. 1 is an enlarged sectional detail taken on the line 41- of Fig. 2.

Fig. 5 is a fragmental detail illustrating the overflow pipe and filler tube.

Patented Feb. 26, 1918.

Renewed July 16, 1917. Serial No. 130,940.

In the drawing, there is delineated an ordinary bowl or latrine 1, having a pivoted or hinged seat 1 thereon, and which has its rim chamber connected by means of the usual horizontally extending flushing pipe 2 with the bottom of the flushing tank 3 disposed in rear of the bowl or hopper 1, the waste pipe 4 being attachedto the lower outlet of the bowl 1, and .an upwardly extending water supply pipe 5 being connected to the bottom of the water tank 3 in the usual manner. The said parts are to be merely taken as conventional, inasmuch as they vary, and inasmuch as the present device may be attached to various water closets.

In carrying out thepresent invention, a T-coupling 6 is interposed in the water supply pipe 5, and a forwardly projecting pipe 7 is threaded into the arm or branch of the coupling 6, and projects slightly beyond the front side of the tank 3 from below the same. An inverted U-shaped pipe 8 has one limb attached to the forward end of the pipe or branch 7, and is disposed in front of the tank 3, and a water controlling valve structure 9 is interposed in the crest or yoke portion of the pipe 8 for control ling the passage of water from the supply pipe 5 through the-present device. The pipe 8 is preferably supported by means of a bracket 10 embracing the crest or upper portion thereof and attached to the front side of the tank.

An ejector or siphoning device 11 is attached to the lower end of the other limb of the pipe 8, and embodies an upright T-cou pling or casing 12 having its upper end engaged to the lower end of the respective limb of the pipe 8, and a nipple or nozzle 13 having its butt end threaded within the coupling or casing 12 above its arm or branch 14 and having its tip projecting downwardly past the said arm or branch, as clearly seen in Fig. 3. The arm or branch 14 of the coupling or casing 12 of the ejector has threaded thereinto, an eduction pipe 1 1 which is in turn threaded or engaged through the top of the flushing pipe 2. A discharge pipe 16 is threaded or otherwise engaged into the lower end of the coupling 12, and has its lower end engaged through the top of the waste pipe 1, the pipe 16 being preferably provided with a double bend or trap 17 for preventing the foul gases from rising through the pipe 16 from the waste pipe 4.

The contrhlling valve structure 9 embodies a suitable casing 18 having the tubular extensions 19 providing the inlet and outlet thereof, and attached to the sections of the pipe 8. The casing 18 has an interior partition 20 provided with an opening 21 therein, and upper and lower plugs or bonnets 22 and 23 are threadedly or removably engaged within upper and lower openings provided in the casing 18 A valve stem 2-l passes slidably through the lower plug or 08,1023, and the upper plug or cap is pro vided with a bore or socket. 25 receiving the upper end of the valve stem 24 to assist in properly guiding the valve stem and valve 26 carried thereby, the valve'2x3 being seatable upon the partition 20 over the opening 21 to close thepassage through the valve structure 9. A packing gland 27 is thread ed'upon the lowerend' of the plug or bonnet 23 to prevent theescape of water.

A nut 28 is threaded upon the lower end of the depending valve stem 24, and a coiled wire expansion'spring 29 is disposed upon the protruding portion of the stem 24 and seats against the nut 28 and gland 27 carried by the plug or bonnet 23, toyieldably depress the valve stem' 2st, for normally seating the valve. Y

A mechanism is provided for automatically opening the valve 26, when the seat 1 of the bowl or hopper is occupied, and to this end, an operating or actuating lever 30 is applied or fulcrumed to the bowl 1 and is arranged to be operated by the depression of the seat 1 to lift or raise the valve 26 to open position. The lever 30'einbodies a bailshaped arm 31 surrounding the forward portion of the bowl 1 adjacent its rim, clips 32 being snapped over and straddling'the rim of the bowl 1 at the sides thereof, and the ends of the bail-shaped arm 31 of the lever 30 being provided with eyes or bearings through which headed pivot or fulcrum members 3e are engaged to take into the outer arms or endsof the clips 32. Thus, the lever 30 is fulcrumed to the rin'i of the bowl 1 in a substantialand convenient manher. It is to be noted that the clips 32 are constructed of resilient or spring material, and are curved through an are greater than 180, so that the clips will embrace and remain in place upon the side portions of the bowl rim.

The intermediate or forward portion of the arm 31 is provided with a portion 35 curvedupwardly over the rim of the bowl 1 under the forward or free end of the seat 1, and arranged to hold the seat 1, raised slightly when unoccupied.

The other a m 36 of the lever 30 embodies an' extension of one end of the bail-shaped arm 31, and projecting rearwardlyfroin the corresponding side of the bowl 1 to a pointbelow the valve structure 9. The free or rear end of the arm 36 has an adjusting screw 37 threaded upwardly therethrough and arranged to contact with or bear against the lower end of the valve stem or the nut 28 carried thereby, as seen in Fig. 3.

An air chamber 39 is preferably coni'iected to the T-coupling 6 of the water supply pipe, to eliminate the pounding of the water when the flow of water is shut off.

it is also preferable to provide the upper or free end of the overflow pipe i0, which is usually provided within the flushing tank 3 in communication with the flushing pipe 2, with a bend or downwardly curved portion 41, so as to bring the upper or free end of the overflow pipe 40 below the normal water lever within the flushing tank 3, to prevent the air from being drawn from within the flushing tank through the flushing pipe vhen the present device is in operation. The bend i1, however, will not interfere with the usual function of the overflow pipe -10. The filler tube which is usually provided, extends through the bend or curved portion 41 of the pipe 40, as clearly seen in F 5. Thefiuictions of these parts are well known, and need not le described at length.

The bottom of the seat 1 is also preferably provided with suitable packing 43 adapted to fit tightly upon the rim of the bowl 1 when the seat is depressed, to prevent the inflow of air between the seat and rim of thc'bowl when the present device is in operation.

In operation, when the closet or latrine is unoccupied, the valve 26 will be closed under the influence ofthe spring 29, and the valve stem 2% being depressed, will depress the arm 36 of the lever 30, to thereby raise the arm 31 to the position illustrated in Fig. 1, so that the upturned portion 35 of the arm 31 will raise the forward or free end of the seat 1 slightly. As soon as the seat 1 is occupied, it will be depressed, to depress the arm 31 of the lever 30. and consequently raise the arm 38 thcreor, so that the. valve stem 24 will be raised to open the valve 26, and allow the water to flow from the supply pipe 5 through the pipe 8 into the siphoning device 11. The water being discharged through the nipple or noZZle 13 downwardly into the discharge pipe 1 6, will tend to create a vacuum within the casing or coupling 12, and as a result, the suction created will extend through the eduotion pipe 15 and flushing pipe 2 to the bowler latrine 1. Since the flushing pipe 2 is ordinarily empty, the suction created by the ejector 12 will draw the foul gases from the bowl or hopper 1, and the gases will be discharged through the pipe 16 into the waste or discharge pipe 4. The withdrawal of gases from the bowl will continue as long as the valve 26 is open, and the valve will be held open as long as the seat 1 is depressed, but as soon as the latrine is vacated, the valve 26 will be reseated and the seat 1 of the bowl will be raised, under the tension of the spring 29. The present device will not interfere with the usual flushing and siphonic action in the bowl or hopper.

The present device is comparatively simple and inexpensive in construction, and may be readily applied to various water closets without entailing great trouble or expense.

What is claimed is A water closet attachment embodying a pair of curved spring clips to detachably engage the side portions of the rim of a Copies of this patent may be obtained for 111':-

bowl said clips each extending through an are greater than 180 so as to embrace and remain in place upon the bowl rim, and a bail-shaped arm adapted to extend around the front of the bowl and having its ends pivoted to the outer portions of said clips, the intermediate portion of said arm having an upwardly projecting member adapted to be depressed by the seat of the bowl, and one end of said arm being extended for operating a valve.

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

EDWARD E. DUFF. lVitnesses:

J. Hanwoon MoRRIs, J. L. BOOTH.

by addressing the Commissioner of letents,

Washington, I). C.

Images