US1110432A - Flushing-tank. - Google Patents

Description

W. A. FRASER.

FLUSHING TANK.

APPLIUATION FILED Nomea, 1912.

Patented Sept 15, 19l4 VHE NOHRIS PEEHs 1:0.. PHOTO-urna, WASHINGTON. u. C.

WILLIAM ALEXANDER FRASER, or GEoRGETowN, ONTARIO, CANADA.

FLUSHING-TANK.

Specification of Lettersatent. f n Patented Sept. 15, 12914.

AppiicauonfnedNovemseI-ze,1912. seminars-4,024.. y v

To all 'whom it may concern Be it known that I, WILLIAM ALEXANDER FRASER, of the townof Georgetown, in the county of Halton, in the Province of Ontario, Canada, havepinvented certain new and useful Improvements in Flushing- Tanks, of which the following is the specification.

My invention relates to the improvements in liushing tanks, and the object of the in` vention is to provide an open flushing tank in which the intake valve isclosed by the pressure behind it contrary to the usual practice, in other words the valve is located between the point of pressure andthe seat instead of the seat between the point of pressure and the valve and thus the pressure serves to seat the valve to shut off the supply.

A further object is to dispense with any float to finally close on? the water.

Another object is to provide a ball of maximum durability to close o the water passing through the flushing pipe.

A still further object is to simplify and cheapen the flushing tank generally.

My invention consists of an inlet pipe having an upper elbow forming a valve chamber, a ball and orifice at the bottom of the chamber, a lever to shift the ball operated from the float on the end of the arm attached to the outer end of the fulcrum of the lever, a flushing pipe extending through the bottom of the tank and provided with a suitable yielding seat, a ball valve of comparatively heavy material normally located on the seat, a tipping cage fulcrumed on the top of the flushing pipe, a rod extending through the arm. of the float and provided with a stop below the arm and connected at the top to the operating crank to which the pull is afxed, the parts bein otherwise constructed and arranged as Iiereinafter more particularly explained.

Figure 1 is a sectional view of an open flush tank provided with my improvements. Fig. 2 is a perspective detail of the flushing pipe and cage lever thereof.

In the drawings like letters of reference indicate corresponding parts in each figure.

A is the flushing tank.

B is the inlet pipe for the water, which extends through the bottom of the tank and is provided with an elbow B1 having at the bottom a screw plug B2 through which extends anorilice B2 having atrthe top an annular seat B4 upon which rests the ball valve C.

D is the shifting lever having a suitable spindle D1 and an elarged upper end D2.

E is the screw plug, which is fitted into the end of the elbowand F is a spiral spring extendingbetween the enlarged end D2 of the shifting leverv and the screw` plug.`

By manipulating the screw plug the pressure of the spring may be regulated. r

,G is an arm rigidly` connected to the end of the fulcrum spindle D1 of the shifting lever and having located atk the opposite end a float H.

I is a flushing pipe, which extends through the bottom of the tank and is provided with a suitable annular seat I1 of the yielding material.

I2 is a ball valve.

J is a cage lever pivoted on the pins J1 at the top of the flushing pipe and having a small end connected by a rod K to the bell crank L on the spindle L1 near thetop of the flushing tank. The rod is provided with an operating arm on the outside as indicated in dotted lines to which may be connected the pull.

K1 is a stop 'located on the rod K below the sleeve K2 secured on the arm G. A stop may be located also above the sleeve K2 if desired to make the device automatic.

M is a sanitary device communicating by a pipe M1 to the bottom of the tank and by a pipe M2 to the ushing pipe. The sanitary device is of a type2 which I have described in concurrent applications and need not be further referred to.

Having now described the principal parts involved in my invention I shall briefly describe its operation.

Upon the pull being operated the bell crank L pulls up on the rod K and tilts Vthe cage lever J on its pivot and throws back the ball allowing the water to pass downwardly through the flushing pipe. The float now will fall and thereby allow the shifting lever to open the ball valve and allow the water to come through the inlet pipe B and orifice B3 into the tank. The movement of the arm and fioat will be controlled by the stop K1, so as to give a definite movement to the shifting lever and the ball valve C.

The pressure of the water passing through the inlet pipe will serve to close the ball valve as soon as the lever is shifted back into the normal position shown in the drawing by reason of the loat. As soon as the float falls sufficiently low, of course, the ball valve I2 is thrown back on its seat on the top ot the flushing pipe, this movement oocurring previously to the restoring of the ball valve C to its Closed position.

As herein before described a stop may be provided above the sleeve K2 in order to make the supply of the inlet water and the flush automatic.

It will be readily understood that by adjusting the arm Gr of the float on the end of the fulcrum pin of the shifting lever for the valve C, that the quantity of water admitted for the flush may be regulated in quantity as desired.

`In the drawings I have shown a spring F between the upper end D2 of the lever D and the plug E, but it will, of course be understood that this spring is only necessary where there is no water works pressure.

Vhat l claim as Iny invention is- In a flushing tank, the Combination with the flushing pipe and inlet pipe the inlet pipe having an elbow at the top forming a valve chamber and an outlet orifice, a ball and seat therefor at the bottom of the valve Chamber, 01' a shifting lever pivoted on a suitable uloruin pin and an arm connected to said pin and having a float thereon, said shifting lever and valve being interposed between the pressure or intake end of said inlet pipe and said seat, a passage leading from the upper end of said Chamber, an adjustable plug in said passage, and a spiral spring disposed between the upper end of said lever and said plug.

WILLIAM ALEXANDER FRAZER. lVitnesses B. BOYD, M. EGAN.

Copies of this patent may bevobtained for five cents each, by addressing the Commissioner of Patents.

Washington, .6.

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