US1203602A - Flush-tank. - Google Patents

Description

W. M. FULTON.

FLUSH TANK. APPLICATION FILED APR. 28, 1914.

mama Nov. 7, 1915.

2 SHEETSSHEET I.

W. M. FULTON.

FLUSHTANK APPLICAT|0N F!LED APR. 28, 1914.

Patented Nov. 7; 1916.

Z SHEETS-SHEET 2.

UNITED STATES PATENT ()FFICE.

WESTON M. FULTON, OF KNOXVILLE, TENNESSEE, ASSIGNOR '10 THEFULT-ON' COMPANY,

OF KNOXVILLE, TENNESSEE, A CORPORATION OF MAINE.

FLUSH-TANK.

.i.....- Spe'cification of Letters Patent.

Patented Nov. '7, 1916.

Application filed April 28, 1914. Serial No. 834,974.

- of a flexible metal section.

My invention has among its objects to reduce the time required for immersion and for filling of the siphon. thereby starting the siphoning action quicker; to remove unnecessary strams from the bellows connection by taking the weight and its associated means off this connection and by reducing and regulating the throw of the siphon during its movements; and further, to generally improve the structure of this type of tank discharge, whereby its eliiciency and durability may be increased.

With the above objects in view, my inven-' tion, broadly stated, consists in providing a siphon larger at its inlet end than at its outlet. and having a. cross section at the bend, the vertical dimension of which is shorter than the horizontal dimension, and in providing lvarings for supporting the weight of the siphon tube'and its parts and adjustable limiting means for confining the swinging up and down of the siphon tube on its hearings within limits suitable. for immersion and preventing undue strains of the bellows connection.

The siphon may assume, under the above form, various shapes. but the one which I have found ellicient is one having a cross section in form of a parallelogram beginning at the mouth of the siphon and extending to a point somewhat beyond the bend where it merges into a round cross section terminating preferably with a [i go for attm'lnnent to the bellows connection. At

the bend the shorter dimension of the cross of a larger volume of water to the flattened bend.

. invent-ion.

The bellows or flexible connection is pref erably in the form of a. corrugated collapsible and expansible metal tube, one end of which is made fast to the end of the discharge pipe in the tank and theother end to the flanged end of the siphon tube. Vari ous means may be'used for limiting the swmgmg movements of the siphon. The one illustrated and'the one which I prefer consists of a rod. the threaded ends of which pass fre ly through holes inflanges, one of which is on the discharge pipe and the other on a part of the swinging siphon.

Heads or nuts on the rod confine the flanges between them tllld lllllll) the swinging movement in one direction. Movement in the opposite'direction is limited'by a sleeve placed on the rod between the flanges. The vibratory swings of the siphonhare thus con trolled between the limits determined by the distance necessary for immersion of the shallow bend in the siphon, and the corrugated walls of the bellows inove equally on both sides of its swing and to an extent just sutlieient for fillingthe siphon. thereby pro tecting the corrugations from unnecessary strains. I

For the purpose of relieving the bellows from the weight of the siphon tube and other parts. revoluble bearings are provided to support these parts. The axis of support is preferably located between the ends ofthe bellows and near a middle point. This support not only helps to relieve the Stt':ll11. l.)lll'.

gives a fixed and definite fulcrum on'which to balance and swing the siphon.

l n order that the invention maybe moreclearly understood, reference is bad tothc accompanying drawings. which illustrat by way of example. one mechanical expres-' sion of the inventive idea, but such drawings are intended only to assist the description and not as defining the limits of the Figure l pro verhents; Fig. 2 is a perspective view sonlmvhat enlarged, showing the means for i in elevation and partly in perspective. show;

is. a vertical sectional view through a flush ta-nlv provided wltl. my. im-

loo

ing the parts separated; and Fig. 4 is a perspeetive detail view showing siphon pipe detached.

Referring to the drawings, 1 designates a 119 of a split ring 13 joint.

' BEST AVAILABLE cow 2 flush tank provided with a discharge pipe 3. The feed pipe 2 connects. inside the tank with a pipe 4 near the top of which is connected a depending pipe 5 for delivering the waterncar the bottom of the tank and a pipe (3 conducting water to the discharge pipe 3 for filling the hopper after each discharge.

7 is a float which operates a valve in the supply pipe through suitable connections 8. siphon 9, preferably of my improved con struction, is connected through bellows 10, such as a flexible corrugated metal tube, with an offset pipe 11 delivering into the tank discharge Pipe 3. Thc flexible corrugated connection 10-is provided with necks 1i. 1:" each ending in a flange 1 5. 13. The offset pipe 11 is also provided with a flange 1- to which flange 13, on the flexible connection. is secured by means of the two halves adapted to tit around the neck 12' and be boltcdto flange 14. a washer l i, prmided with suitable holes to receive the bolts. being interposed to make a tight The opposite llangedend 13 of the flexible Connection 10 is secured to the flanged end of the siphontube between a split ring 17 on neck 12 and a ring 18 on the siphon tube. Ring 18 may be, and preterably split for the purpose of placing it around the siphon tube and when a split ring is used the parts are arranged to break joints with split ring 17 on the neck of the flexible tube. A tight joint is formed by interposing a washer ltLand'thc parts are clamped together by belts or screws in a well known manner. Should ring 18 be made integral, the flange terminating the siphon tube is made after the ring IR is placed on the tube. The ring 18 is: provided with arm 20 for the attachment of o|'ierating devices. 'lhrough llangcsl-t, l7. l7 and 1S, and in line with each other. holes are provided for loosely receiving a limiting rod 21, slightly longer than the normal length of tube 10. One or both ends of Lllis rod are threaded to receive nuts 22 which limit the swing of the siphon in one direc. tion which, in the illustration, is the downward or immersion swing. To limit the u ward swing, I In'eferably employ on rod '21 a sleeve 23, which is somewhat; shorter than the distance between the flanges on the the; ible connection. An upward movement of the siphon brings flange 17 against the end of sleeve 23 and terminates its movenu-nt. It is to be understood that do not wish to be limited to the specific form of limiting means, as the same result may be secured in other ways, provided the sidcwise swings of the vessel are limited.

. In order to support the weight of the siphon and its attachments, while permitting a rocking movement to the flexible connection, two pairs of oppositely disposed hinges a feed pipe 2 and read\' for flushing.

are provided, each pair consisting of a mom-j her :24 secured to the rmgnu-tubers if which m Han-ed to the end of the pipe llii di siphon to swing in a count erha ianeing to which one end of a spring '27 is attached. the opposite end ber 86;;

an opening in arm anl is l made fast to the ariuby anut 29 and an The tension of the. spring mg secured to a threaded eye-bolt wl ich passes through thumb screw 30. is ad usted by means of. tlienut and screw.

In lieu of the spring a \veight may be used.

2 on the operating lever 33 such as weight 3 The siphon is normally kcptm orwcigbt. liotli ()n the bend of ripe H 35 secured to the.

f!) about the middle of the lcngi'h ffl ot' the flexible connection and prom-rly po-,

acting through linktil. the lower end oi which may be attached to one of the wing of the thumb screw,as illustratcd. or lmtllithe weight andsprlngmayjbe' used.

'lhe siphon tube is ii-culiarlv adapted to operate with the cw-fi'ollimg means as'so eluted with the flexilileaconucctiou and is illustrated on tlat rcetangular in cross section and conlllllltS in this form overithe bond it; and to a point beyond the bend .where it begins to reduce in size and nu'i'gointo a circular flanged tcrminationfon the delivery leg. llus construction providcsa shallow bend measured verturallv. \\llllt l|:l\'ill i a seea rcduceil sc ale in l' ig. 4. 'lhe re eiving leg. 33,ol'tthesiphon l.- made roe tional area larger tbanthe"dt-livcry opening oi the siphon. This form nt. tubienables a slight rise of water in lthebcnd to till the tube and start. flow quickly and also enables a small flexing movement olthe bellows eonncction to immerse the bend. which is of decided importance in thia eonnwtion.

Outside the tank is provided the usual operating means such as ajhandle i? for tilting a a pin -ll workingin a slotdiirthe end of level 33 which l. lulcrunnal atdQ. The lever 33 is provided with prongs all which engage hall t! to limit the extren'innp'ement of lever 3 i .L

The operation oi thedcvice is as follows: After the tank has been filled and the supply cut oil. in 'thejnsual manner. by the automatic cutmll' "means. the water stands in the tank at tbi-lcvel indicated and the hopper has been tilled through pipe (i. The siphon it stands infltheupper dotted line position under the action ofspring 27 and The handle'il'l is moved to the left thereby lil'ting link 34. and arm 2!) extending from flangqring 18 on the siphon tube 9 wluchnow; swings downward on its hinged support. Water now fills the shallow bend 36 whi'ch is immersed by the movement and starts the siphon action which continues after the handle 37 is released and the spring 27 lifts the parts to their original position. It will be noted that the end of the bellows moves in a true circle, the center of which is in the axis of the hinge supports and that the angle through which it moves is limited in one direction by the limiting rod 21 and nuts 22 and in the opposite direction by the ends of sleeve 23 and that by proper adjustment of the nuts on rod 21 the angle on both sides of the longitudinal axis of the vessel may be equal and limited to the short distance necessary to immerse the bend, thereby limiting the amount of flexure of the bellows to a minimum and distributes equal wear on both sides of the vessel.

What is claimed is:

1. In a 'flush tank, a discharge pipe, a siphon tube, a flexible tubular connection between said elements, flange means for securing the connection to said pipe and tube, and means for flexing said connection and limiting means consisting of a rod and sleeve between the ends of which said flange means. has a play. for limiting the flexure of said connection.

2. In a flush tank, a siphon tube therein having a horizontally flattened bend, the shorter leg of the siphon including the bend having a sectional area which is larger than that of the delivery end of the tube, a flexible corrugated metal tube connected to said delivery end, hinge members for directing the flexure of said last named tube about a point between the ends of the same, resilient means normally acting on the siphon to hold it in a raised position,.and means for limiting the flexure of said tube on both sides of its normal position.

3. In a flush tank, the combination of a discharge pipe, a siphon tube, a flexible corrugated metal tube connecting said siphon and pipe, and means for limiting the flexure of saidconnection comprising a member fast on one of said inflexible sections and a rod having stop means loosely engaging said member and fast to a stationary part at its opposite end.

4. In a flush tank, the combination of a discharge pipe, a siphon tube having a hinged supporton said pipe, yielding means for normally holding said siphon in a predetermined position,

a flexible corrugated metal tube connecting said siphon and said metal pipe, and means comprising rigid members fast to said siphon and pipe and a rod provided with stop means having loose engagement with one of said members and held by the other member for limiting the flexure of said flexible connection.

5. In a flush tank, the combination of a discharge pipe, a siphon tube and a corru--6 5 gated metal tube connected between said ele-- ments, an adjustable yielding means having a connection to said siphon for normally holding said tube in a predetermined position, a rod provided with stop nuts and supported on said tube and pipe for limiting the flexure of said connection in one direction and a sleeve on said rod for limiting the flexure of the connection in the opposite direction.

6. In a flush tank, the combination of a, dlscharge pipe, a siphon tube having a flexible corrugated metal tube connection with said pipe and a hinged support for, said tube, a rod having stop means and supported on said tube and pipe for limiting the flexure of said connection in one direction and a sleeve on said rod for limiting the flexure in the opposite direction.

- 7. In a flush tank, the combination of an a siphon tube having a flattened outlet pipe, bend the cross-section of which is larger hen the outlet, and provided with a hinged support on said pipe, yielding means nor-l mally holding said siphon in a predeter the flexure of said connection in one direc- 90 tion and a sleeve on said rod for limiting the flexure in the opposite direction.

8. In combination a siphon having aflattened bend, the shorter leg of the siphon including the'bend having a cross section .7

which is larger than that ofthe delivery end and a flexible corrugated metal tube connected to the said delivery end to enable the immersion of the bend forfilling.

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

WESTON M. FULTON.

Witnesses: I

, H. T. PATTON, 'S. A. MARTIN.

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