US2055490A - Evacuator - Google Patents

Description

Sept- 29, `1`936- I w. c. GROENlGl-:R 2,055,490

EVACUATOR Filed Feb. 2, 1935 3 Sheets-Sheet 1 Hl TORNEY Sept. 29, 1936. w. C;- GROENIGER` 2,055,490

EVACUATOR Filed Feb. 2 1935 3 Sheets-Sheet 3 INVENTOR Wil iam Cflroe e? o3 Y Patented Sept. 29, 1936 UNTTED STATES PATENT OFFICE Application February 2, i935, Serial No. 4,620

10 Claims.

My present invention relates to evacuators.

Embodiments of my present invention, designated evacuators, possess characteristics of the general nature of half-syphon legs, that is to say, function to form the posterior leg of a syphon, the anterior leg of which is constituted of an upwardly extending passage with which my evacuator is connected, and serving therewith to discharge a defecator. l

Preferably, the anterior or upwardly extending passage is constituted of an upwardly extending passage formation of the defecator, preferably also of the lateral outlet type, such asis disclosed in my co-pending application Serial #733,259, iiled June th, 1934, and entitled Lateral outlet defecator.

My invention may also be applicable to the type of lateral outlet defecator set forth and claimed in my co-pending application Serial #749,069, filed October 19th, 1934, and entitled Defecator.

The general characteristics of my evacuator,

embodying my present invention, reside in an uppermost portion arranged to be detachably connected to the uppermost portion i. e., discharge of an upwardly extending leg of a lateral outlet type of defecator or to the uppermost portion i. e., discharge of an upwardly extending anterior syphon leg of a non-lateral outlet type of defecator. Such uppermost portion includes a Weir serving per se as or in conjunction with a, wall of the uppermost portion of the anterior syphon passage or leg, as a dam.- The uppermost portion of the evacuator further includes a bulged or elbow formation, whereby upon flow of the effluent discharged from the defecator, a portion of thev quantity of air originally in the bulged or elbow formation, is entrained, thereby giving rise to sub-atmospheric pressure of the retained air. My evacuator further includes a downwardly extending central or other intermediate portion, the effective crosssectional area of which is less than that of the uppermost portion of the evacuator, thus providing for a relatively restricted cross-sectional area of the effluent flowing through such intermediate portion. My evacuator preferably includes supplemental portions disposed lower relative toA its stated intermediate portion, an essential characteristic of which is that the effluent assumes the form of a flowing curtain and other therewith comparable formation serving to preclude the inflow of air through the lower or discharge opening of the defecator during the r stage of syphonic discharge of the eilluent.

The lower or discharge end of my evacuator is connected with a soil pipe, or other suitable passage means, for affording the discharge of the effluent therein.

Further features andobjects of the invention will be more fully, understood from the following detail description and the accompanying drawings, in which 1 illustrates my evacuator in assembly with a preferred type of defecator, and is a vertical section taken on line I-I of Fig. 2; Fig. 2 is a top plan view of the evacuator shown in Fig. 1.

Fig. 3 is a side elevation of Fig. 2.

Fig. 4 is avvertical section on line 4-4 of Fig. 5 and Fig. 5 is an elevation of another embodiment of evacuator, pursuant to my present invention. T

Fig. 6 is a sectional elevation on line 5 5 of Fig. 7 and Fig. '7 is an elevation of another embodiment of my invention.

Fig. 8 is a View similar to Fig. 1 illustrating an initial stage of discharge of the contents of the indicated defecator through my evacuator.

Fig. 9 is a similar view illustrating a later stage n of the discharge. Fig. 10 is a similar view showing a still later stage of the discharge. Fig. 11 is a similar view illustrating the stage of the breaking of Ythe syphonic action. Fig. 12 is a detail elevation on line I2-I2 of Fig. 8.

Referring to the embodiment shown in Figs. 1, 2 and 3, the type of evacuator 40 comprises an uppermost or inlet portion 4I suitably secured within the discharge opening 20 of the defecator, such as the type of defecator I0 indicated in Fig. 1, and corresponding in construction to the type of defecator described and claimed in my aforesaid co-pending application Serial #749,069, entitled Defecator. Briefly, such defecator comprises in its essentials an 11p-flow, i. e., anterior syphon half-leg I5, its inlet VI5a being disposed proximate the lowermost edge I8a of the inwardly disposed ledge I8 which extends downwardly toward the well portion I2 of the bowl; preferably, the lowermost level I2a of the bottom of the wellV I2 is disposed interiorly of the opening I5a of the anterior syphon half-leg I5. The dam or Weir of the anterior syphon half-leg is indicated at I6, the eifective face of which is substantially level, i. e., in alignmentwiththe lower face 4Ia of the inlet 4I of the evacuator 40.

For the purpose of fuller explanation of the showing ofv Fig. 1, the inow port of the water or other efuent is indicated at 23, leading to the main water channel 22, thence through the port 3| leading to the channel 30 for the supply of the main discharge jet (not shown) and for the supply at a predetermined timeinterim to the rim jets 28. `Such bowl may or may not be provided with a vortex effecting jet (not shown), also supplied from the main water channel 22. The afteriill I3 serves as the effluent for receiving the solid, liquid and other matter to be discharged from the defecator, the normal level I4 of such eluent being determined by the vertical height of the dam or weir I6.

The type of evacuator shown in Figs. 1, 2 and 3, embodies a relatively'thick wall at its inlet 4I, the thickness of which is determined by the contour of the discharge opening 26 of the defecator. Such relatively thickened wall of the opening 4l is shown of solid formation.

The support of the defecator is preferably had independently of the connection of the evacuator with the defecator, as by means of bolts passing through the upper portion of the rear wall of the defecator, i. e., on opposite sides of the ledge 24a at the rear of the upper face of the bowl.

A preferred form of mechanicailly securing the connection of the inlet opening of the evacuator 4l! relative to the discharge opening of the defecator is set forth and claimed in my co-pending application Serial #48,860 led Nov. 8th, 1935, entitled Plumbing connection.

The opening of the inlet 4l leads to the upper section extending directly from the inlet 4l horivZontally and communicating directly with the upper elbow section 42 of the evacuator, the

Vlower end of which communicates with a downwardly extending cross-sectional slightly restricted section 43, thence to the lowerly disposed eflluent-curtain-forming section 44. The outtake section 45 is adapted to be connected in any suitable manner to a Y-tting or other laterally opening fitting leading to a soil pipe, waste pipe, etc. As appears from Figs. 2 Yand 3, the evacuator desirably has a general Z formation, to most effectually attain the above stated functions of the respective sections of the evacuaton'also a predetermined length of travel, improved manner of connection of the outtake section with the Y or other laterally opening fitting, etc.

As appears from Fig. 2, the type of evacuator is of the 45 angle, but may b e of a 90 angle, zero angle or Yany intermediate angle, as pre- 4ferred.

v Thev type of .evacuator shown in Figs. 4 and 5 corresponds in essentials to the type shown in Figs. 1, 2 and 3, and like parts are designated by like referencev characters. It will be noted that the evacuator sho-wn in Figs. 4 and 5 is of the zero' angle type.

vThe evacuator shown in Figs. 4 and 5 illustrates in particular the formation of the wall of the evacuator .of substantially uniform thickness, the enlarged'diameter at its intake 4I being had byfan' outer annular thimble Mb, 'secured at its reduced end 4lc to the exterior of the wall of the intake 4I by welding, brazing, etc.v Its outtake wall formation 45 may be had by a separate member secured at its reduced end 45a, to the juxtaposed end of the vsection 44, as byV welding, brazing, etc.

The evacuator shown in Figs. 6 and 7, is of the 90 angle type, and its parts corresponding to the parts of the evacuator shown in Figs. l, 2 and 3 Y are designated by like reference characters.

My evacuator of the type shown in Figs. 4 and 5 may be made of sheet metal suitably contoured in the drawing operations of the same.

lIfhe'type of evacuator shown in Figs. 6 and '7 may be cast. c'

Figs.. 8 through 12 illustrate a typical manner of operation of my evacuator. 'In Fig. 8 isdepicted the initial stage induced primarily bythe main discharge jet of .the Vdischarge of `the effluent `I3 from the defecator I0 upwardly through the anterior syphon half-leg I 5, the portion of the eifluent within the bowl proper being preferably subjected to a vortical movement, say in counter-clockwise direction as viewed from above. Under such or equivalent condition the mean vertical height of the eflluent within the bowl proper is maintained substantially at the level I4, compare with Fig. l, the peripheral portion of the effluent being elevated by reason of the centrifugal force imparted thereto by the vortical movement, the central portion of the effluent within the bowl proper being relatively depressed, thus creating, inter alia, a positive force radially inwardly toward such central and depressed portion of the effluent upon floating and semi-floating manner and in a direction downwardly toward the inlet la of the anterior, i. e., upwardly directed syphon half-leg l5. Such initial movement effects a rise of the effluent above and over the weir i6 and the lower wall portion 4|a of the uppermost section of the evacuator 40, whereby the effluent passes over the ledge 4ld, see also Fig.'12, the effluent upon flowing thereover forming a curtain 46 flowing over and in cooperation with the downwardly extending wall 41 of the intermediate section of the evacuator 4l), ultimately reaching the lowermost section 44. Such curtain-like formation 46 of the eluent and its downward flow entrains air originally at atmospheric pressure `in the upper bulged or elbow section 42, and as appears hereinafter, the continuance of such curtain-like flow entrains more and more of the stated air and thus more and more reduces its Volume and correspondingly reduces the pressure of the air remaining in such bulged or elbow section 42 to lower and lower sub-atmospheric pressure values.

Fig. 9 illustrates a later stage of the ow of the eiuent, whereat the cross-sectional area of the curtain-like formation 46 is increased, accompanied by increased entrainment of the stated air in the region 42, as above referred to. As is observed from Fig. 8, initially a pool 44a of the effluent is formed within the section 44, which advantageously is of a flat dish-like formation, such pool 44a co-acting with the curtainlike formation of the eiuent to form a seal against the entry of airV through the section 45 in a direction counter to that ofthe flow of the effluent, which otherwise would retard or break the syphonic action.

Fig. 10 illustrates the status of the discharge of the eliiuent through my evacuator at a stage of substantially full discharge, the curtain-like formation 46 of the effluent substantially completely filling the intermediate section 43 of the evacuator.

As referred to above, the cross-sectional area of the intermediate or central section 43 of my evacuator 46 is preferably less than that of upwardly disposed sections,v whereby a predetermined relative reduction of .the rate of travel of the effluent is brought about, thus effecting and maintaining a substantially complete filling by the eilluent at the region adjacent the ledge portion 4|d and the greater part of the volume of the bulged or elbow portion 42, such action serving to increase the rate of entrainment of the air within the stated bulged or elbow portion 42. At the stage illustrated in Fig. 10, i. e.,

of substantially full syphonic action, the contents h of the bowl are effectually discharged therefrom through my evacuator. It will be observed that throughout the respective stages typified in Fig. 8, in Fig. 9 and in Fig. l0, the entry of air through the effluent outtake 45 in a direction counter to that of the flow of the eiuent, is wholly precluded.

Thedischarge of the eiluent from the bowl proper, succeeding the stage indicated in Fig. 10, continues until the level Ma, see Fig. 1l, of the effluent I3 within the ,bowl proper subsides below the lower edge Illa of the ledge I8 disposed inwardly` of the bowl proper, at which stage air from the interior of the bowl proper enters in the direction indicated by the arrows 48, thus breaking the syphonic action, followed by consequentV subsiding of the eiiiuent in the region of the dam I6 and ledge 4 Id, accompanied by a partial return ow of the eflluent then within the anterior syphon up-flow leg I5, which comminglesrwith the effluent supplied through the rim openings 28 to form the afterflow, preparatory for a subsequent operation of the defecator.

In the type of evacuator shown in Figs. 8 through l1 as also inthe type shown in Figs. l, 2 and 3, the wall portionfi'i of the central or intermediate section 40 may be of nat-wise formation, to enhance the adherence thereto of. the curtainlike formation 46 of lthe ,eluent Such enhanced action may also be attained bycontouring the intermediate portion of the defecator re-entrantly, as is indicated in Fig'. 4; the section of minimum cross-sectional area indicated at i3d, of the type shown in Figs. 4 and 5 is disposed more lowerly as compared with the type of evacuator shown in Figs. 8, 9, l() and 11andlikewise with respect to the type illustrated in Figs. i, 2 and 3.

The type shown in Figs. 6 and 7, attains such enhanced operation of the` curtain-like formation 46 of eiliuent by means of a substantially rectilinearly extending intermediate sectionv 43 which also tilts with respect to the vertical.

As is observed from the drawings, in particular Figs. 7 and 12, the cross-section of the horizontally extending upper portion of. my evacuator is advantageously of elliptical cross-section, a relativel-y flat face of such elliptical cross-section coinciding with the horizontal fiat Weir or dam' I 6 of the syphon up-flow leg, thus affording free entry of the effluent into and through the horizontal upper section of my evacuator and attendant increased flow of the effluent into and through the downwardly extending elbow d2, accompanied by the formation of the curtain at the ledge Md, and correspondingly through the subsequent coacting flow phases, referred to hereinabove.

From the above, it appears that embodiments of my invention effect the flow of the eflluent to form water dams and curtains at sequentially related locations, positively created and maintained by the construction and relative arrangement of the respective sectional parts of my evacuator, the passage of the effluent into and through my evacuator being at all times unobstructed as to the flow of the leffluent-thus in marked superiority over the prior art water-plug principle-but at all stages of the forming and existence of the syphonic action the flow of air into the interior of the evacuator is positively precluded by the stated water dams and curtains.

Whereas I have described my invention by ref.- erence to specific forms thereof, it will be understood that many changes and modications may be made without departing from the spirit of the invention.

I claim:

l. As an article of manufacture, a posterior` syphon half-leg provided with intake and outtake openings, comprising an upper section communicating directly with the intake opening and extending wholly horizontally therefrom, an up- Dei' elbow section communicating directly with upper horizontally extending section, said elbow section being of relatively large cross-sec tional area, said article further comprising a lower downwardly extending section of relatively lesser cross-sectional area, the walls of said article being imperforate between its intake and outtake openings.

2. As an article of manufacture, a posterior syphon half-leg provided with intake and outtake openings, comprising an upper section communicating directly with theintake opening and extending who-ily horizontally therefrom, an upper elbow section communicating directly with said upper horizontally extending section, said elbow section being of relatively large cross-sectional area, said article further comprising a lower section of. relatively lesser cross-sectional area extending downwardly in mean direction at an angle to the vertical, thewalls of saidarticle being imperforate between its intake and` outtake openings.

3.,As an article of manufacture, a posterior syphon half-leg provided with intake andeuttake openings, comprising an upper section communicating directly with the intake opening and extending wholly horizontally therefrom, an upper elbow section communicating directly with said upper horizontally extending section, said A elbow section being of relatively large cross-sectional area, said article further comprising a lower downwardly extending section of relatively lesser cross-sectional area, said article further comprising a lowermost section extending horizontally, the walls of said article being imperiorate between its intake and outtake openings.

4. As an article of manufacture, a posterior syphon half-leg provided with intake and outtake openings, comprising an upper section communicating directly with the intake opening and extending wholly horizontally therefrom, an upper elbow section communicating directly with said upper horizontally extending section, said elbow section being of relatively large cross-sectional area, said article further comprising a low-er section of relatively lesser cross-sectional area extending downwardly in mean direction at an angle to the vertical, said article further comprising a lowermost section extending horizontally, the walls of said article being imperforate between its intake and outtake openings.

5. As an article of manufacture, a posterior syphon half-leg provided with intake and outtake openings, comprising an upper section communicating directly with the intake opening and extending wholly horizontally therefrom, an upper elbow section communicating directly with said upper horizontally extending section, said elbow section being of relatively large cross-sectional area, said article further comprising a lower downwardly extending section of relatively lesser cross-sectional area, said lower section including a portion having a flat wall formation, the walls of said article being imperforate between its intake and outtake openings.

6. As an article of manufacture, a posterior syphon half-leg provided with intake and outtake openings, comprising an upper section communieating directly with the intake opening and ex- F tending wholly horizontally therefrom, an upper elbow section communicating directly with said upper horizontally extending section, said elbow section being of relatively large cross-sectional area, said article further comprising a lower Cio Cil

downwardly extending section of relatively lesser cross-sectional area, said lower section including a portion having a flat wall formation, said article further comprising a lowermost section extending horizontally, the walls of said article being imperforate between its intake and outtake openings.

'7. As an article of manufacture, a posterior syphon half-leg provided with intake and outtake openings, comprising an upper section communicating directly with the intake opening and eX- tending wholly horizontally therefrom, an upper elbow section communicating directly with said upper horizontally extending section, said elbow sectionbeing of relatively large cross-sectional area, said article further comprising a lower downwardly'extending section of relatively lesser cross-sectional area, said article further comprising a lowermost section extending horizontally, said lowermost section having a dish-like lower wall formation, the walls of said article being imperforate between its intake and outtake openings. Y 8. As an article of manufacture, a posterior syphon half -leg provided with intake and outtake openings, comprising an upper section communicating directly with the intake opening and extending wholly horizontally therefrom, an upper elbow section communicating directly with said upper horizontally extending section, said elbow section being of Hrelatively large cross-sectional area, said article further comprising a lower downwardly extending section of relatively lesser cross-sectional area, said lower section including a portion having a at wall formation, said lowermost section having a dish-like lower wall formation, the walls of said article being imperforate between its intake and outtake openings.

9. As an article of manufacture, a posterior syphon half-leg provided with intake and outtake openings, comprising an upper section communicating directly with the intake opening and extending wholly horizontally therefrom, an upper elbow section communicating directly with said upper horizontally extending section, said elbow section being of relatively large cross-sectional area, said article further comprising a lower section of relatively lesser cross-sectional area extending downwardly in mean direction at an angle to the vertical, said lower section including a portion having a flat wall formation, the walls of said article being imperforate between its intake and outtake openings.

l0. As an article of manufacture, syphon half-leg provided with intake and outtake openings, comprising an upper section communicating directly with the intake opening and extending wholly horizontally therefrom, an upper elbow section communicating directly with said upper horizontally extending section, said elbow section being of relatively large cross-sectional area, said article further comprising a lower section of relatively lesser cross-sectional area extending downwardly in mean direction at an angle to the vertical, said article further comprising a lowermost section extending horizontally, said lower section including a portion having a flat wall formation, said lowermost section having a dish-like lower wall formation, the walls of said article being imperforate between its intake and outtake openings.

WILLIAM C. GROENIGER.

a posteriorv

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