US416091A - Island - Google Patents

Description

(No Model.)

A." P. BROWNE. AUTOMATIC FLUSH-ING DEVICE.

No. 416,091. Patented Nov. 26, 1889.

fa /Z UNITED STATES PATENT OFF CE.

ALEXANDER P. BROIVNE, OF BOSTON, MASSACHUSETTS; ASSIGNOR TO THE IVEEDEN SANITARY HANUFACIIURING COMPANY, OF RHODE ISLAND.

AUTOMATIC FLUSHING DEVICE.

SPECIFICATION forming part of Letters Patent No. 416,091, dated November 26, 1889.

Application filed June 19,1889. Serial No. 314,816. (No model.)

To all whom it may concern: the tank. The end of this siphon is within a Be it known that I, ALEXANDER P. BROWNE, floatable cup G, the bottom of which is formed of Boston, in the county of Suffolk and State as a valve, which rests upon and normally of llIassachuset-ts, a citizen of the United closes a water-way into the flushing-pipe ll. 55 States, have invented certain new and use- This flushing-pipe may also itself be provided 'fulImprovements in Automatic Flushing Deat its upper end with a siphon, (shown at 1-1,) vices, of which the following is a specification. although, as will be hereinafter pointed out,

My invention relates to that class of appathis last feature is not essential. ratus in which the flushing of the bowl of a In order to regulate the discharge of water 60 IO urinal or similar structureisaccomplished by in the operation of the apparatus, the cupmeans of siphon action produced by the valve G, with its water-way and the flushingdownward and outward passage through a siphon l-I, may be inclosed within chambers pipe of suitable caliber of liquid introduced partitioned, as shown, from the main body of from without into the bowl. the tank, but connecting therewith by small 65 IIeretofore several forms of these devices orifices g h, as shown, this feature of conhave been constructed in which the overflow struction being common and well known for through a pipe of suitable caliber of liquid the purpose. poured into the bowl produced a rarefaction I will now describe the operation of the apof the air in the long leg of a siphon-formed paratus: Assuming the tank 0 to be filled 70 2o flushing-pipe, the short leg of which commuwith water to its normal levelas, for examnicated with a tank or other suitable waterple, a a-it is obvious that the cup-valve G supply. According to my present improvewill be filled with water and will rest upon ment, although I still employ the principle of and close the water-way into the flushingsiphonage brought about by the discharge valve B. If new liquid Joe poured into the 75 from the bowl of its liquid contents, yet I do bowl A and descend through the pipe D, it

not avail of this siphonage to start the flushwill expel the air therefrom, thus raret'ying ing action directly, but through the inter the air in the pipe F. This will produce sivention of a fioatable valve, as will l1ereinphonicaction inthatpipe,whichwillfirstlower after appear. the water-level in the chamber surrounding 8o In the accompanying drawings I have repthe cup-valve G down to the level of the cup, resented in elevation and section at Figure l and then continuing will empty the cup of its a device embodying my present invention in liquid contents sufficiently to cause it to float a convenient form, and at Fig. 2 an illustraup and open the water-way into the flushingtion of a simplified form thereof. pipe B, thereby allowing flushing-water to de- 85 In the drawings, A represents the bowl to scend through that pipe to the bowl until such be flushed; B, the flushing-pipe leading theredescent of the water lowers the cup-valve G to and O the tank or water supply. Below back to its original position and closes the the bowl I provide an outlet or waste pipe D, water-way. I of suitable caliber, through which liquid The essential parts of the apparatus so far 90 4o poured into the bowl from without may pass described are represented at Fig. 2, in which out. This pipe is provided with a back-air I) Z) show the level of the top of the cup, the cut-off d, and an overflow or surplus wastesubsequent withdrawal of water from which pipe E may also be provided, as shown. The causes it to float upward and so open the function of the back-air cutoff is, as is well mouth of the flushing-pipe B. If, however, 5 known, to prevent air passing into thepipe'D a longer flush be desired, it may be obtained to supply the place of that driven out by the by means of thesiphon attachment H, the siflow of liquid through the pipe. phon action of which will be started by the v In connection with the pipe D, and at a descent of water caused by the raising of point on the sewer side of the back-air cutthe cup-valve, and the siphon-flush thus ob- I00 off, I provide an air-pipe F, extending uptained will continue until the level of the wardly and terminating in a siphon within water surrounding the short leg of the siphon H has fallen sut'fieiently to uneoverits mouth, when the siphon action breaks and the flush ceases. \Vater is then resupplied to the tank up to its normal level, thereby restoring the apparatus to its original condition.

I claim 1. In an automatic flushing device for urinals and similar structures, the combination, with the bowl to be flushed, of a flushingpipe extending therefrom to the flushing-tank, a Water-way from the flushing-pipe to the interior of the tank, a fioatable cup provided with a valve adapted to rest upon and close said Water-Way, a Waste-pipe below the bowl having aback-air cut-off therein, and an airpipe extending from the said waste-pipe on the sewer side of the said air cut-off upwardly to the cup within the tank, and formed atits upper part into a siphon having its short leg within the cup, substantially as set forth.

2. In a device of the character described, the combination, with the bowl to be flushed,

munieating with the water in the tank, a

fioatable cup provided with a valve adapted to rest upon and close said water-way, a wastepipe below the bowl having a back-air cutoff therein, and an air-pipe leading from the said waste-pipe on the sewer side of the said air out-off upwardly to the cup Within the tank and formed at its upper part into a siphon having its short leg Within the cup, substantially as set forth.

In testimony whereof I have hereunto subscribed my name this 15th day of June, A. D. 1889.

ALEX. P. BRO \VNE.

lVitnesses:

ELLEN 13. TOMLINSON, JOHN H. TAYLOR.

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