US1254739A - Flushing apparatus. - Google Patents

Description

will@ @BERT STICKDDRN, 0F ZURICH, SWITZERLAND, .ASSIGNOR T0 ALBERT ECKSI'JEN` 031' NEW YORK, N. Y.

FLUSHING APPARATS.

Speccation of Letters Patent.

Patented Jan. 29, tht.

Application 'filed 1-tpr1f3` 191'?. Serial No. 163.88%.

To all whom i# 'may concern.'

Be it known that l, ROBERT STIoKDonn, a subject of the Emperor of Germany, residing at Zurich, Switzerland, have invented certain new and useful Improvements in Flushing Apparatus; and do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawing, and to letters or figures of reference marked thereon, which form a part of this specification.

This invention relates to a flushing appaiatus for water-closets and other purposes of the type, in which upon an actuation of a distributing stepped piston at first a communication between a water supply pipe and the interior of an air-Chamber is brought about, this communication being then interrupted, owing to a differential action upon the stepped piston, as soon as a certain pressure is reached in the air-chamber, whereupon the air-chamber is then put into communication with a flush-pipe.

ln the hitherto known flushing apparatus of the kind referred to, the provision of a special inlet valve for the rinsing waterv is quite unavoidable and a certain space between air-chamber and a casing provided with con necting branches and adapted to take up the stepped piston and said inlet valve has also to be provided. ln these known flushing apparatus the stepped piston is moreover actuated by the overpressure of the water produced in the air-chamber. Such a working has, however, the disadvantage that the pressure in the air-chamber is in consequence of unfavorable pressure-conditions no longer great enough to open this piston to a sufiiciently great extent as soon as the air-chamber is put into communicati on with the fiushpipe through the agency of the stepped piston, so that the water current flowing into the flush-pipe is not strong enough to effect a perfect rinsing.

The flushing apparatus according to this invention is now characterized in that the distributing stepped piston is guided in a casing arranged inside an air-chamber consisting of two halves, the meeting ends of which inclose an obtuse angle, and that said' piston findsv also a guide in the Hush-pipe when it is moved into the latter and after that the coperation between this piston and guiding means provided in said casing is interrupted. The differential piston is thereby adapted to eect directly a communication between the water supply pipe and the air-chamber. As a consequence of this, the construction of said casing may be considerably simplified and a special inletvalve for the water may be dispensed with.

A further advantage of this new apparatus consists in that the differential piston is acted upon from that moment in which its movement effecting a Vcommunication between the air-chamber and the flush-pipe is started during the whole duration of this movement by the pressure of the water prevailing in the supply-pipe, so that it is always moved in a sufficient manner for securing the proper communication between air-chamber and flush-pipe.

My invention comprises also novel details of improvement and combinations of parts that will be hereinafter more fully set forth and then pointed out in the claims.

The invention will now be more particularly described with reference to the accompanying drawing, which illustrates a constructional example of the invention.

In this drawing:

Figure l is a front view partly in section of this embodiment, and

Fig. 2 and F ig. 3 are sections on the line lll-H of F ig. 1, showing the parts in different positions.

l denotes a branch communicating with the water supply pipe not shown on the drawing and extending partly into the airchamber 2. The latter consists of two halves joining at an obtuse angle. The joining inner'ends of these halves are situated lower down than their outer ends. 3, i denote an axially movable stepped piston, the diameter of the piston part 41 eX- ceeding that of the piston part 3, s0 as to constitute a differential piston. The pistonl 3, a is hollow and open at both ends. The parts 3, t are connected by a recessed portion 6.l 5 denotes a handle for moving the differential piston 3, 4f.. The latter is guided in a stepped casing 7 having a round crosssection and welded to the air-chamber 2. Branch l communicates with the interior of this casing 7. An adapting ring 8 isarranged in the lower part of the casing 7 where it acts as a support for ring 9 ofjointing material.V denotes a second adapting ring also arranged in the casing 7 and acting as a support for a` ring 11 of jointing material. The two rings 9, 11 are kept in the proper position by means of a distance piece 12 provided with longitudinal slots. The latter acts also as a sieve preventing any solid substances in the water supply pipe from entering into the interior` of the casing 7 and it constitutes at the same time a pressure reducing memberifor the purpose oit' obtaining a noiseless working of the apparatus. A ring 13 provided with an internal thread is rigidliT connected to the casing 7. Atightening nut 14 coperates with ring 13. 15 denotes a coverlimiting the upward movement oit the piston 3, 4

e Vand closing the casing j?. The described arrangement is such, that the piston 3, 4 may bev taken out of the casing 7 upon a removal. of cover 15. vUpon unscrewing of ring 14, the parts 8, 9, 10,11 and 1 2 may be easil'v Y and quickly taken Aout and inserted into the cylindrical casing '7. 16 denotes the Hushpipe with which is rigidly connected an adapting ring 17 cooperating with a ring in which case the prevailing water-pressure 18 of jointing material.r rthis pipe 16 is directly connected to the air-chamber 2.

The' cycle of operation of the described flushing apparatus is as follows:

When the `parts are in their normal position, as shown in Fig. 2, 4the communication between the water inlet branch 1 and the interior of the air-chamber 2 is shut up and the distributing piston 8, 4 is held in the vlifted position by the 'pressure of the water.

@n'the other hand the flush-pipe 16 ccmmunicates with the interior of the air-chamber 2. l

It now the dierential piston 3. 4 is pressed down by means of a pressure on the handleY 5 of the same` in order'I to bring about a rinsingot' the closet, first the cominunication between flush-pipe 16 and the interior of the air-chamber 2 is inte rugted Thereupon the recessedportion of the distributing'piston 3, 4 connects immediati-ely the branch 1 to the interior or' the airchamber, the piston being therein7 also guided in the iiush-pipe 16.- Owing to this. the ydistributing piston 3 4 is guided in all its positions in ay proper manner, this being even then the case when the recessed por! tion 6 prevents the guiding members 8. 9 from coperating with said piston. fis soon as the communicationbetween branch 'l and the interior of the air-chamber 2 is effected, the latter' is' lilled with water until the pressure produced in this chamber is able to litt the piston 3, 4 owing to diiiierential action.

eXerts in the well known manner on the piston part 4, having the larger diameter, a

greater force than Von the piston part 3. As a consequence of this upward movement, the

communication between branch l and thc interior of air-chamber 2 is shut up and hereupon the discharge from the air-chainber 2 toward the Hush-pipe is then set. tree. As soon as this is the case, the water-pressure acting upon the lower sur'tace ot piston part assists the piston 3, 4 in its upward movement. As the water-pressure prevailing in the branch 1 acts during the whole upward movement of the piston 3, 4 upon the larger piston part 4, the piston 3, 4 is moved under all conditions, and entirely independent ol the pressure-variations occurring in 'the airchamber 2 during the rinsing, to the desired degree in an upward direction, so that the piston part 3 is always lifted suiiiciently, the result of this being that a water current strong enough to eii'cct a perfect rinsingot the closet is free to liow into Hush-pipe it. In the lifted position the distributing piston 3, 4 is nearly moved wholly out oi the {lushpipe, so that in comparison with other known devices it reduces only by a reiv small degree the waterpassage in the. Hushpipe, and therefore an increased rinsingr action is obtained.

Owing to the fact that no special ralrc has to be provided for controlling the inlet of the water into the air-chamber. the ccnstructicgi ci? the apparatus may be considerabl simplified, while at the same time a very reliable working is obtained. A. :lnrther considerable advantage of the described flushing apparatus consists in that the (lushpipe acts at the same time as a guide tor the differential or distributing piston when the latter' comes out of cooperation with certain guiding members provided in the casing 7, owing to the recess (i.

iVhat I claim is:

1. In a flushing apparatus, an air chamber, a casing therein, a water supply conduit comnninicating with the casing, a flushpipe arranged to communicate with the air chamber, a differential piston inovablv mounted in the casing and adapted to directly control communication between the air chamber and casing and between the air chamber and the tlush pipe.

2. In a flushing apparatus, an air chain ber, a casing therein, a water supply conduit communicatingl with the casing, a flushpipe arranged to communicate with the air chamber, a dill'erential piston movably mounted in the casing and adapted to alter'- nately close communication between thc air chamber and casing and between the air chamber and the Hush pipe.

3. In a flushing apparatus, an air chamber, a casing therein, a water supply conduit communicating with the casing, a Hush-pipe arranged to communicate with the air chamber, a differential piston movably mounted in the casing and adapted to successively close communication between the casing and nasfiyra flush pipe and establish communication between the casing and chamber.

t. In a flushing apparatus, a receiving chamber, a casing therein, a water supply conduit in communication with the casing, a Hush pipe normally communicating with the chamber, and a. differential piston comprising means whereby communication between the chamber and fiush pipe is normally established and communication between the casing and chamber is normally closed.

5. In a flushing apparatus, a receiving chamber, a casing therein, a water supplv conduit in communication with the casing, a flush pipe normally communicating with the chamber, and a differential piston projecting through the casing into the chamber, said piston comprising means whereby communication between the chamber and Hush pipe is closed and communication between the casing and chamber is established.

6.' In a flushing apparatus, a receiving chamber, casing therein, a water supply conduit in communication with the casing, a

flush pipe normally communicating with the chamber, and a dierential pist-on comprising an end portion adapted to close the flush pipe and a recessed portion through which communication is established between the casing and chamber.

7. In a flushing apparatus of the character described, an air-chamber, a casing mountedtherein, a water supply branch directly connected to said casing, a flush pipe directly connected to said air chamber, and a differential piston guided in said casing and having a recessed portion, the latter being adapted to effect communication between said water supply branch and the interior of the air chamber while one end of the piston controls communication between the interior of the air-chamber and the flush-pipe, said piston being so arranged relatively to the water supply branch that in its normal position it is kept in the uppermost position by the pressure of the water and is moved during 'the whole duration of the movement effecting communication between the interior of the air-chamber and the flush pipe by the pressure prevailing` in said supply branch.

8. In a flushing apparatus of the character described, an air-chamber, a stepped casing having a round cross-section and mounted in said chamberand rigidly connected thereto, a water supply branch connected to said casing, adapting rings artcpiec or this patent may be obtained for ve cents each, by addressing the Gommissioner ranged in the latter, packing members cooperating with said rings, a slotted distance piece between the rings and acting as a sieve and as a pressure reducing member, a tightening member for compressing the packing members, a diderential piston guided in said casing and coperating with the packing members, a cover for closing the casing, a handle on the differential piston and a fiushpipe directly connected to the airchamber, said differential piston provided with a recessed portion adapted to edect direct communication between the water supply branch and the interior of the air-chamber while one of' its ends controls communication between the interior of the air-chamber and the flush-pipe, the water supply branch being so arranged that it communi- Cates with said casing laterally of the recessed portion of the differential piston when the latter takes up its normal position, so that the piston is kept in its lifted position by the water-pressure and is moved during the whole duration of the movement effecting a communication between the interior of' the air-chamber and the flush-pipe through the agency of the pressure prevailing in said supply branch. v

9. In a flushing apparatus of the character described, an air-chamberconsisting of two halves, the meeting ends of which inclose an angle and are situated below their outer ends, a casing mounted in the meeting part of the two halves of the air-chamber, a water supply member 4 communicating with the casing, a flush-pipe communicating with the chamber, and a diiierential piston lguided in said casing and adapted to efiect a direct communication between said water supply member and the interior of the airchamber and to control the communication between said chamber and the flush-pipe.

l0. In a flushing apparatus of the character described, an air-chamber, a casing therein, a water supply member communieating with the casing, a differential piston having a recessed portion, means in said casing for guiding the piston, a flush-pipe connected with the chamber, means in the flushpipe for guiding the diderential piston, said piston adapted to eiect a direct communication between the casing and the air-chamber and to control communication between said chamber and the flush-pipe.

In testimony that I claim the foregoing as my invention, I have signed mv name.

ROBERT STICKDRN.

ci' Patents, Y

Washington, D. C.

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