US961458A - Flushing-tank. - Google Patents

Description

r. J. MORGAN. PLUSHING TANK APPLICATION FILED AUG. 9, 1909.

Patented June 14, 1910' 2 SHEETS-$3321 1.

V RWenZZvQ WW 7 ANDREW a. GRAHAM cu. Puo'rmuwocammins. wnsumcwm DC s, J. MORGAN. FLUSHING TANK.

APPLICATION FILED AUG.9,1909.

951,458 Patented. June 14,1910.

2 SHETS-SHEET 2.

mmfliw a. GRAHAM co. mow umoanAruzas, WASHINGTON, u. c.

FREDERICK JOHN MORGAN, 0F MAIDENHEAD, ENGLAND.

FLUSI-IING-TANK.

Specification of Letters Patent.

Patented June 14:, 1910.

Applicationfiled August 9, 1909. Serial No. 512,010.

To all whom it/rnay concern:

Be it known that.1 ,FRnDnnIoK JOHN MOR- GAN, a subject of the King of Great Britain, and resident of Claredene, Glare Road, Maidenhead, Berkshire, England, mechanic, have invented new and useful Improvements Relating to Flushing-Tanks, of which the following is a specification.

The present invention has reference to a modification or improvement in the apparatus described in the specification of United States Letters Patent in my name No.

909638. This apparatus which'consists of a water waste preventer or flushing tank comprises a valve which is opened and retained open against the pressure of the water by a hooked arm on the float lever when the same is moved by an arm on a weighted lever worked by hand. In the described arrangement it is somewhat difficult to dispose of the parts to mechanical advantage, the result being that when the water pressure is strong the operator has to exert considerable force to put the apparatus in action. According to the modification now to be described the action is made easier by reason of the arrangement of the parts to better advantage and incidentally the apparatus is rendered more independent of the operator who cannot now by his misdirected efforts influence in any way the proper action of the apparatus or damage the parts which need be made only sufliciently strong to do the work which is now extremely easy.

In carrying out my invention I provide at the end of the arm carried by the shaft of the weighted chain lever a pivoted nose or pawl provided with a counter balancing weight. When the tank is empty as is normally the case the pivoted nose or pawl overlies the hook of the arm on the float lever. When the weighted lever however is rocked by pulling the chain, the said nose or pawl trips past the hook and engages with the underside of the same. When the chain is released the weighted end of the lever tends to restore it to its former position while the pivoted nose or pawl is retained beneath the hook. The result is to straighten the pivoted nose or pawl into line with the arm which carries it, thereby thrusting the arm carrying the hook in a backward direction. The result of this backward movement is a corresponding movement of the valve spindle attached to the said arm and the opening of the valve. The pivoted nose or pawl is disengaged from the hook by the rising of the floatlever which moves the hook lever on the filling of the tank, whereon the nose resumes its normal position by reason of its counter weight and cannot be in engagement again until another flush of water is required and the weighted lever is again rocked.

In the accompanying drawings Figure 1 I represents a flushing tank embodying-smy invention in plan view. Figs. 2, 3 and at are sectional side views of the tank showing the parts in different positions. Fig. 5. is an enlarged sectional view of the water inlet valve.

a is a tank or cistern having a removable cover I). c is a water pipe leading thereto and (Z is a valve casting embodying the inlet pipe 6 which casting is attached to the pipe 0 by means of a screw union f outside the tank a.

g is a water inlet valve having a conical head closing down on its rubber lined seat (see Fig. 5) under the pressure of the water supply.

it is the spindle of the valve projecting into the interior of the tank. The valve casting as well as the cistern is normallyempty and will not therefore freeze in frosty weather.

The water pipe 0 which is outside the cistern can always be lagged without difliculty. On the lugs i attached to the casting d is pivoted the float lever j which has in one with it the arm is. This arm is is pinned to the valve spindle h at Z.

m is a hook on the arm is.

n is a rocking shaft arranged transversely of the tank in suitable notches or bearings. Fast to this shaft is the chain lever 0 and also the lever 1? counter weighted by the weight M. To the nose p of the lever p is pivoted the counter weighted pawl 37 The nose of the pawl 79 is adapted to engage with the hook m of the arm 70.

q is a siphon fitted in a well in the bottom of the tank a. It consists of the vertical pipe 9 open at the top and connected to the flush pipe at the bottom, the cap 8 inclosing the pipe r and an air pipe 23 extending from the outside of the cap near the bottom to the interior thereof near the top above the level of the top of the pipe 7. This siphon will always discharge automatically when the tank is filled and will obviate the use of an overflow ipe. There is preferably a hole in the plpe 1" near the bottom of the well so as to insure that the latter shall be normally dry. This may either be a very small hole which is not large enough to appreciably retard the fillin of the tank or it may be a larger hole urnished with a plug as at U which is raised by the ball or float descending on the end of the plug lever to when the tank is empty. This drainage hole is useful in the case of severe frosts.

WVhen the flush is required the cistern being in its normal condition as shown in r Fig. 2 the chain of the lever 0 is pulled thereby rocking the shaft 91. and depressing the nose of the lever 37 thereby engaging the counter weighted pawl 79 with the underside of the hook m (see Fig. 3). On releasing the chain, the weight n raises the lever 19 and by means of the pawl 37 in engagement with the hook m of the arm it forces back the spindle h and opens the valve 9 (see drawn position of Fig. 4). The water running in fills the tank and raises the float lever j thereby causing the further backward tilting of the arm is, so that the hook m will be clear of the pawl p which then under the influence of its weight reassumes the position shown in Fig. 2, and in dotted lines Fig. 4, out of engagement with the said hook m. The same movement opens more widely the inlet valve, and the siphon being overfiowed, automatically discharges.

u is a closed air vessel for preventing shock in the water pipe when the valve is shut by the pressure of water behind it on the descent of the float lever. When the weighted pawl 79 has fallen back again into its dotted position (see Fig. 4) and its nose has cleared the hook m the tank will then be ready for the" next flush.

What I claim and desire to secure by Letters Patent of the United States is- 1. In a flushing tank, a weighted chain lever, an inlet valve, interengaging means connected respectively with the inlet valve and the weighted chain lever, arranged to inter-engage when the lever is pulled down and to open the inlet valve when the chain is released, and means operated by the water in the tank for closing the valve.

2. In a flushing tank, a weighted chain lever, an inlet valve provided with a spindle, a counterbalanced pawl carried by the weighted lever, a hook carried by the valve spindle in position to be engaged by the pawl when the chain end of the weighted lever is pulled down and to open the valve when the chain is released, and means under the control of the water in the tank for closing the valve.

- 3. In a flushing tank, a weighted chain lever, a counterbalanced pawl carried by the lever, an inlet valve provided with a spindle, a hook carried by the spindle in position to be engaged by the pawl when the weighted lever is pulled down and to operate the spin dle when the chain is released, and a float connected with the hook for releasing the hook from the pawl when the water rises in the tank and to close the inlet valve when the water falls.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

FREDERICK JOHN MORGAN.

WVitnesses:

ALFRED S. BISHOP, A. D. DINSDALE.

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