US2167372A

US2167372A - Drain fitting and method of production thereof

Info

Publication number: US2167372A
Application number: US227156A
Authority: US
Inventors: Adolph C Recker
Original assignee: Chase Brass and Copper Co Inc
Current assignee: Chase Brass and Copper Co Inc
Priority date: 1938-08-27
Filing date: 1938-08-27
Publication date: 1939-07-25
Anticipated expiration: 1956-07-25

Description

Jl115525, 1939- A. c. RECKER, 2,167,372

DRAIN FITTING AND METHODx onp'zoDUcTIoN THEREOF Fi-ied Aug. 27, 1938 [g5 13 j .i f

\ l l 1Z Patented July 25, 1939 d UNITED STATES DRAIN FITTING AND METHOD- OF PRODUC- TION THEREOF Adolph C. Recker, Watertowmconn., assigner to Chase Brass & Copper Co., Incorporated, Waterbury, Conn., a vcorporation Application August 27,

5 Claims.

This invention relates-to an improved construction and method of making drain-fittings having a strainer arranged transversely to the waterway extending therethrough.

The primary object of the present invention is to provide an improved construction and method of making a drain-fitting of this character whereby the period of time required to empty a lavatory bowl or similar receptacle may be reduced to a minimum.

Another object of the invention is to provide an improved construction and method of making a drain-fitting whereby quantity production of superior drain-fittings may be economically carried on.

, One of the specific objects of the invention is to provide an improved drain-fitting having an integrally-formed water-way strainer; which may be advantageously constructed of drawn-tubular non-ferrous metals such, for example, as copper or copper-base alloys which are readily coldworked to the desired form and provide smooth continuous surfaces for the inner walls of the drain-fittings whereby the resistance opposed to the outlet dischargeof drainwater or other uid is reduced to a minimum.

With the above and other objects in view, as will appear to those skilled in the art from the present disclosure, this invention includes al1 features in the said disclosure which are novel over the prior art.

In the accompanying drawing, in which certain modes of carrying out the present invention are shown for illustrative purposes:

Fig. 1 is a view in central-vertical section of a drain-fitting embodying the present invention, and shown as being placed in a lavatory-bowl or like receptacle;

Fig. 2 is a view on a smaller scale and in side- .elevation of the drain-fitting shown in Fig. 1;l

Fig. 3 is a similar view but viewing the drainfitting from a right angle as compared to the showing of Fig.'2;

Fig. 4 is a top-plan view of the drain fitting;

Fig. 5 is a transverse-sectional view taken on the line 5-5 of Fig. 3;

Fig. 6 is a diagrammatic view in side elevation of the partly-completed drain-fitting, showing relative arrangement of piercings to be made and wall-portions to be operated upon; and

Fig. 7 is a View in side-elevation similar to Fig. 3, but showing a modified form of the drainfitting embodying the present invention.

According to the embodied form of the invention shown in Figs. 1 to 6 inclusive, the drain- 1938, Serial No. 227,156

fitting which is generally designated by the reference character I0, comprises: a tubular bodyportion II provided with overow-openings I2-I2 and a bevelled-top-flange I3. Thesaid overflow-openings I 2-I2 are oppositely arranged, each with respect to the other, and in verticalregister with an overflow channel I4 which extends upwardly around and conforms to the vertical curvature of the bottom wall I5 of a lavatory bowl as illustrated in Fig. 1.

The top-flange I3 of the drain-tting Ill is suitably formed and arranged to be seated within a depression I6 formed in the bottom wall l5 of the lavatory bowl around an outlet-opening I'I therein which opens downwardly into a circularoveriow chamber I8 into which the overflow channel I4 discharges. The annular overo-wchamber I8 is formed within a protuberant-hollow wall-portion I9 of the bottom wall I5 of the lavatory bowl. At the bottom, the said protuberant-hollow-wall portion I9 is provided with a tubular-neck 20 through which extends a circular-opening 2l coaXially aligned with the discharge-outlet-opening I'I in the bottom Wall I5 of the lavatory bowl.

Throughout the greater portion of its length below the circular chamber I8, the tubular bodyportion I I is provided eXteriorly with screwthreads 22 by means of which a clamping-nut 23 may be moved into clamping engagement with a gasket 24 interposed between the said clampingnut 23 and the annular lower end of the tubularneck 2U. In this manner, the drain-fitting I0 is securely fastened to the bottom wall I5 of the lavatory bowl by the clamping-action of topflange I3 and the clamping-nut 23.

As shown particularly well in Fig. 1, the drainfitting I0 is provided with a waterway or flowagechannel 25 extending therethrough from top to bottom. Arranged transversely with respect to this waterway 25, is a strainer generally designated by the reference character 26 and comprising two strainer-members 21-21 which are formed by inwardly-displaced circumferentialportions of the tubular body-portion II of the` drain-fitting I0. For this purpose and during the operation of forming the over-flow-openings I2--I2 the tubular body-portion I I, in its original imperforate condition, may be operated upon by suitable cutting and forming dies to partially sever therefrom the circumferential wall-portions thereof which are subsequently displaced to form the strainer members 21 as well as to completely sever other wall-portions which, when removed,

provide the major-portions of the overflow-openings |2-I2.

As shown diagrammatically in Fig. 6, during the progress of the piercing operation by which the overflow-openings l Z-IZ are formed, each of the said over-flow-openings may be formed in complementary portions in the following manner. According to the illustrated form of the invention shown in Figs. 1 to 6 inclusive, a circumferential wall-portion 28 (Fig. 6) of the originallyimperforate tubular body-portion Il at the topfmay be completely severed therefrom by piercing the wall of the tubular body-portion in parallel horizontal lines 29 and 33 and vertical lines 3| and 32 to form a portion of a given one of theV overflow-openings IZ-IZ extending above the upper marginal edge of each of the strainermembers 21-2'! to the top of'said opening. At the same time, an additional circumferential wallportion of the originally-imperforate tubular body-portion Il, corresponding to one of the strainer-members 2l, may be partially severed therefrom by an additional piercing of the tubular wall along a horizontal line 33 substantially parallel to the circular line 3E! already referred to. The circumferential wall-portion Zl'a, thus partially severed from the tubular body H merges with the circumferential wall of the said tubular body l l but, in the course of the operations performed thereon, is displaced inwardly about halfway across the waterway 25 preferably to form one of the strainer-members 2l. 'I'he wall-portion 27a is displaced into abutment with the oppositely-arranged wall-portion 21a so that the resulting strainer-members ZI-Zldmeet adjacent the central-longitudinal axis of the said waterway 25.

According to the modied form of the invention shown in Fig. 7, a drain-fitting which is Ygenerally designated by the reference character 35, is constructed to comprise a tubular bodyportion 3i which is provided at the top with a beveled top-flange 38 to be seated in the depression !6 of the bottom-wall I5 of a lavatory bowl.

According to this form of the invention, the major portion of each overflow-opening 39 is formed by the complete removal of a portion of the cylindrical wall of the tubular body-portion 31, immediately below the strainer which is generally designated by the reference character 40 and cornprises two strainer-members substantially similar in construction and arrangement to the strainermembers 21--21 of the embodiment described above, Accordingly, the strainer 40 is formed by the inward displacement of the intermediate portions of partially-severed cylindrical wall-portions of the tubular body-portion 31, immediately above the major portion of a given overflowopening 39 which is thereby increased in vertical dimension to an extent corresponding to the vertical depth of the strainer 40.

In making either of the illustrated forms of the invention, it will be seen that the tubular bodyportion Il (or 37) is made of suitable length in relation to its diameter to cause a free expansion of the issuing fluid column into flowing adherence with the inner wall of the drain-fitting below the vena contracta of the fluid column. At the same time, the overflow-outlets I2-l2 (or 39) are c onveniently arranged toY breakthe 'vacuum which, in their absence, would occur around the vena contracta to exert a retarding influence on the outow of the uid column from the lavatory bowl .oriother receptacle( Iolaimt 1l A drain-fitting, comprising: a tubular body provided with an axial through-Way for fluid and having oppositely-arranged overflow-openings in the circumferential wall of the said tubular body,

the upper marginal portion of each of the said oppositely-arranged openings being formed by a partially-severed circumferential portion of the tubular body wall; the partially-severed portions eachV having a horizontal-extension and a verticalextension and provided with a bottom wall and a top wall which merge with the tubular body wall at opposite ends, the said partially-severed portions of the tubular wall being each displaced inwardly into juxtaposition each with respect to the other to form complementary reentrant strainermembers in which the vertical-extension of each of thesaid partially-severed portions is presented in saidthrough-way longitudinally thereof and its said top wall presents a surface of uniform size and of the width of the wall of the tubular body to fluid flowing through the said through-way.

2. A drain-fitting, comprising: a tubular body provided with a waterway extending axially therethrough and having oppositely-arranged overnow-openings in the circumferential wall thereof, each of the said overflow-openings being formed partly by the complete removal of a circumferentially-extending original wall-portion of the said tubular body'and partly by a reentrant partlysevered circumferentially-extending wall-portion of the said tubular body, the said reentrant partlysevered circumferentially-extending wall-portions each having a horizontal-extension and a vertical-extension and provided with a bottom wall and a top wall and being merged circumferentially at opposite ends with the said tubular body and having their reentrant portions in juxtaposition, each to the other, to provide a strainer in which the vertical-extension of each of the said partly-severed portions is presented'in said waterway longitudinally thereof and its said top wall presents a YsurfaceV ofV uniform size and of the width ofthe wall of the tubular body, to fluid flowing through the' waterway ofthe said tubular body.

V3. A method of making a drain-tting provided with a water-way-strainer, consisting in: forming a tubular body having a waterway extending therethrough; in forming an opening in the lateralwall of said tubular body by completely removing a lcircumferential wall-portion thereof; in partially-severing from the said tubular body adjacent the said opening, an additional circumferentialY wall-portion to provide a partially-severed portion' having a horizontal-extension and a vertical-extension and provided with a bottom walland a top wall and merging endwise with the tubular body-walland inwardly displacing thel said additional circumferential wall-portion to provide a re-entrant portion located`adjacent said opening'and extendingat least, partway across the said waterway to form astrainer-'member in which the vertical-extension ofthe said partiallyseveredv portion is presented in'said waterway longitudinallytliereof, and'its said top wall Apresents a surface of uniform size and of the Width of the Wall of the tubular body, to the flow of drainage Water through the said Waterway.

4. A method of making a drain-fitting provided with a waterway-strainer, consisting in: forming a tubular body having a waterway extending therethrough; completely removing oppositely-arranged circumferential wall-portions of said tubular body having their upper and lower marginal edges arranged in spaced horizontal planes transverse to the axis of the said Waterway to form portions of oppositely-arranged orveriioW-openings; partially severing from the tubular body along corresponding marginal edges of the partopenings thus formed, additional circumferential Wall-portions; the partially-severed additional circumferential Wall-portions each having a. horizontal-extension and a vertical-extension and being each provided with a bottom Wall and a top Wall; and inwardly-displacing the said additional circumferential Wall-portions of the tubular body in a commontransverse plane to complete the said oVerow-openings and to form a strainer comprising the said inwardly-displaced additional circumferential Wall-portions of the tubular body and each having the said vertical-extension thereof presented in the said Waterway longitudinally thereof and having its said top Wall presenting a surface of uniform size and of the width of the Wall of the tubular body, to fluid passing through the said Waterway.

5. A drain-fitting, comprising: a tubular body provided with an axial through-way for fluids and having an opening in the circumferential Wall thereof which is partly Yformed by the inward displacement into the said axial through-Way, of a partially-severed circumferential portion of its tubular Wall, the said circumferential portion of the tubular body wall having a horizontal-extension and a vertical-extension provided with a bottom wall and a top Wall and its vertical-extension being of relatively small axial length in comparison with the axial depth of the said opening and having a reentrant medial bend formed therein and merging circumferentially in opposite directions with the said tubular body wall to form a strainer-member in which the vertical-extension of the said partially-severed circumferential portion is presented in said through-Way longitudinally thereof and its said top Wall presents a surface of uniform size and of the Width of the Wall of said tubular body to the flow of fluid through the said through-way.

ADOLPH C. BECKER.