US2101978A - Floor drain - Google Patents

Description

Dec. 14, 1937. E. w. N. BoosEY 2,101,978

INVENTOR. -dwdfoW/l/oosey BY M 5%@ ATTORNEY.

Patented Dec. 14, 1937 i UNITED STATES PATENT OFFECE 8 Claims.

lThis invention relates to floor drains, the object being Vto provide a drain for positioning in a floor and having a body containing a basket for the collection of sediment whereby a major portion at least of the sediment is separated from the liq uid iiowing through the drain and in association therewith of means providing for a minimum flow through the drain when the basket becomes so choked with sediment as to prevent a flow of the major portion of the fluid directly thereinto. By such an arrangement, liquid accumulating in the depressed area of the floor about the drain still will seep away and by its slowness of ilow through the drain indicate necessity for removing the sediment.

The feature of the invention is in the provision of apertures in the grating provided at the floor line through which the liquid flows from the floor, of drain apertures which may lead directly into the body of the drain or apertures that may discharge into the basket above the possible sediment level therein. Apertures are shown in the drawing for performing each of the said func-V tions but in many cases one or the other set of auxiliary apertures permitting drainage through the drain head when filled with sediment may be utilized. These various objects and novel features of the invention are incorporated in the preferred form of structure shown in the accompanying drawing in which- Fig. l is a plan view of a iloor my invention.

Fig. 2 is a sectiontaken on line 2-2 of Fig. 1

showing the drain head set in a .concrete iloor. Y The drain as here shown comprises a body I formed of two parts-namely, a base part Ia and a. cap part Ib, the part Ib having a flange 2 and the base part Ia having a ilange 3 providing a V recess 4 peripherally about the body into which an apron 5 may extend. Bolts 6 extend through the flange 2 and into the flange 3 and there is also provided a ring 'I positioned in the recess 4 and clamping the edge of the apron 5 in place by pressure contact therewith by the bolts extending through the flange 2 of the cap element Ib. The under face of the flange 2 is ribbed or corrugated to provide seepage apertures 8 which open to above the apron at the top of the recess 4 whereby any liquid accumulating on the apron may pass directly into the body of the drainthrough the seepage apertures.

The cap member 3 is preferably provided with an inwardly extending and thence downwardly inclined flange 9 near the upper end. The indrain embodying wardly extending portion of the flange provides a support for a grating element I9 which rests thereon and the inclined portion of the flange extends below the grating as shown invFig. 2 and provides a support for the basket l I which has an outturned Vilange I2 resting thereon whereby it is supported with its bottom above the bottom wall of the base portion I of the body. The basket I I has a series of apertures I3 through the wally at theupper end and the grating has a skirtY Iii depending from the under side thereof and terminating at a point below the lower edge of the apertures I3.

The skirt I4 ls preferably, although not necessarily, formed integrally'with the grating. There are apertures or slots I5 provided in the grating within the area defined by the inner surface of the skirt I and these apertures are sufficiently large to allow fluid and sediment to pass readily therethrough into the basket, the liquid when at sufiicient height llowing through theapertures I3 into the drain body. Upon an accumulation ofsediment in the drain body to a point to engage or cover the lower edge of the skirt I, the apertures I5 are sealed to liow therethrough but in order to prevent liquid continuing to accumulate on the floor, auxiliary apertures are provided which permit the liquid to drain off from the iloor'even though the drain is clogged and the rapidity ywith which the liquid flows from the floor indicates to an observer vwhether the drain is clogged or notthat is, if liquid does not run freely but tends to stand for a period of time the attendant is thereby notified that the drain Vshould be cleared of sediment.

For the purpose of permitting liquid on the floor to continue to pass into the drain, I provide auxiliary apertures, there being two series in the form here shown. One series of apertures I6 open through the grating outside the area defined by the skirt and within the area dened by the basket.

Inasmuch as the sediment which collects in the basket II to a point to cover the lower edge of the skirt, liquid flowing through the apertures I6 may pass through the apertures I3 of the basket into the drain body and thus with this series of apertures, liquid will drain from the floor line although slowly in comparison to the rapidity of ow that otherwise occurs through the r vapertures I5 when the drain is .not clogged.

For this same and an additional reason, I provide a series of apertures I'I which are formed in the edge of the wall of the cap member Ib at several points, four being provided in the rectangular form of drain here shown. These apertures II open through the flange 9 of the cap member and lead from the floor surface directly into Ythe drain body. These apertures I'I particularly do not readily become covered with sediment that accumulates on the surface of the grating as such sediment will tend to accumulate on the main apertures-that is, sediment that is too large in size or in accumulated mass to pass through the apertures i5 and thus the apertures I'I under normal conditions of service will not so quickly become clogged as the main apertures centrally disposed in respect thereto and where liquid is changing its direction of flow from all sides. Usually the iioor line is sloped as indicated at YI8 in Fig. 2 on all sides toward the drain which occupies the lowest point of the recessed or inclined portion of the floor line.

The apertures I'I or the apertures I6 alone may l be sufficient in many installations and the struc` ture may be so built without departing from the spirit and scope of this invention as set forth in the appended claims. However, in many cases where there is a considerable amount of liquid iiowing on the oor, both series of apertures I6 and I'I may be utilized and in number and area sufficient to properly provide for slow seepage of water from the floor surface.

The apertures II are in the Wall of the cap member Ib at the edge of the grating I0 and thus provide for access to the edge of the grating for removal thereof. The grating element tends to rust in place and these apertures I'i enable one to hammer the edge of the grating from the several sides and thus break the grating away from the seat in the cap member.

The apertures II may be used in conjunction with a basket into which fluid flows through the apertures of the grating and function when the basket vbecomes clogged. The invention therefore is not, in its broadest sense, depending upon the use of the skirt as the basket eventually will become clogged with sediment wherever the apertures may be provided in the wall thereof and 'the apertures I'I provide passage for liquid directly into the drain body outside the area of the grat- The base portion Ia of the drain body has provided on one side thereof a hub I9 with which avent line 2li may be associated. This vent, which usually extends upwardly in a stack from the position here shown, and due to its being positioned above the level of Water determined by the outlet 2I, will take air and odors from the sediment out of the drain to the outside of the building. Otherwise, the apertures I6 and I1 opening directly to the body of the drain from the floor surface would permit the odors to rise from the drain and where such occurrence is not undesirable the vent could be dispensed with.

I have shown a hub 2I providing an outlet from the bottom of the base member Ia which may lead to a sewer through a trap line as usual in structures of this character.

Where an outlet at one side of the drain body is not desirable, a hub 22, indicated by dotted lines in Fig. 2, may be provided to open through the bottom wall of the base member la and adapted to receive a vertical pipe indicated by the dotted lines 23 leading to the sewer.

In the plan view Fig. l, I have not shown the concrete floor I8 purposely in order that the assembled structure may appear in full lines. While I have shown the seepage apertures as being provided in the under face of the flange provides aseal for a flow of fluid directly to the grating through the interior of the body except such as may flow through the auxiliary apertures I6 or I'I or both such series of apertures in the event both are utilized,

Only one form of the drain head is here shown but other forms may be utilized with which may be incorporated my improved features of construction as set forth in the appended claims. For instance, there are often provided, especially in large buildings, covered drainsthat is, the cover is van imperforate cover in order that the janitors will not use the drain constantly or let a -hose run on the floor to drain therethrough. In reality, these compartments below a floor line contain valve control mechanisms and the like and yet have an outlet to a drain at some other point in the building. However, it is often desirable that water accumulating on a floor, as in cleaning operations, should seep away. For this reason, the apertures I1, which are provided outside the cover element which has heretofore been termed a grating, permits drainage and are so inconspicuous as not to indicate a normal drain head.

Having thus `fully described my invention, its utility and mode of operation, what I claim and desire to secure by Letters Patent of the United States is 1. In a floor drain, .a drain body having an open upper end and an outlet at the bottom, a grating supported at the upper end, a sediment intercepting trap comprising a basket supported centrally in relation to the grating and of less area than the grating, a skirt depending from the grating into the basket and having an open lower end, said basket having apertures in its wall above the lowermost point of the skirt and providing for a flow of material from the basket into the drain body, said grating having a series of apertures within the area defined by the skirt, and a series of apertures outside the area of the skirt providing for a flow of liquid through the grating into the drain body, the combined area of said last named apertures being less than the combined area of the apertures opening to Within the skirt.

2. In a floor drain, a drain body having an open upper end and an outlet at the bottom, a ange provided adjacent the upper end of the body extending inwardly and then being downwardly inclined, the inner edge defining an opening, a basket having an outwardly inclined part at the upper end, the basket extending through the opening in the flange With the upper inclined part resting on the inclined portion of the flange, said basket having openings to the body below the flange, a grating peripherally supported by the inwardly extending portion of the said flange with the upper surface practically iush with the upper end of the body, said grating having openings for discharge of liquid into the basket, an open ended skirt extending into the basket providing a sediment trap for preventing sediment from accumulating in the basket to above the skirt, and means providing for a flow of liquid through the grating when the trap is sealed to flow of liquid thereinto by sediment. Y

3. In a oor drain, a drain body having an open upper end and an outlet at the bottom, a flange provided adjacent the upper end extending inwardly and then being downwardly inclined, a grating supported at the upper end of the body on the inwardly projecting portion of the ange, a sediment receiving basket having an upper edge outwardly inclined and a body of a diameter to pass through the opening defined by the inner edge of the flange whereby the basket is removably suspended, the grating having a skirt extending into the basket in spaced relation therewith and the basket having apertures in its wall above the lower edge of the skirt, said grating having openings to pass fluid into the basket through the skirt and other openings leading directly into the space between the skirt and basket thereby providing for flow of liquid through the grating whenan accumulation of sediment in the basket prevents ow through the skirt into the basket.

4. In a floor drain, a drain body having an open upper end and an outlet at the bottom, a grating supported at the upper end, a basket supported at the upper end, a basket supported in the body and having an open upper end centrally beneath the grating, a skirt depending from the under side of the grating into the basket in spaced relation with the walls thereof, the basket having openings through its wall above the lower end of the skirt and the grating having centrally disposed apertures for discharging liquid through the skirt into the basket, the grating being supported practically ilush with the upper edge of the body and the body at its inner face being grooved forming drain apertures at the upper end one side of which is formed by the edge of the grating and through which liquid may pass directly into the drain body.

5. In a floor drain, a drain body having .an open upper end a-nd an outlet at the bottom, a ange adjacent the upper end extending inwardly thereof, -a grating supported on the iange practically ush with the upper end, the grating having centrally disposed apertures, a basket supported by the flange and into which liquid and sediment ow through the said apertures, means associated with the basket providing a sediment intercepting trap, the inner face of the wall of the drain body at the upper end having grooves extending through the flange and providing apertures outside the grating and the area defined by the basket through which liquid may fio-w into the drain body when the trap is sealed by sediment.

6. A iloor drain comprising a drain having an open upper end and an outlet at the bottom, a grating supported at the upper end, a basket supported by the body having an open upper end centrally disposed directly beneath they grating, a skirt depending from the under side of the grating into the basket in spaced relation with the walls thereof, the basket having openings through its wall above the lower end of the skirt and the said centrally disposed apertures discharging through the skirt into the basket, the skirt and the basket providing a sediment intercepting trap and sealing the drain to iiow through the said centrally disposedapertures when the sediment accumulates to a point engaging the lower edge of the skirt, there being apertures outside the said centrally disposed apertures providing for a flow of liquid into the drain body, and a vent line opening to the upper end or the body.

7. In a floor drain, a drain body, a grating at the upper end thereof having a series of apertures therethrough, a basket suspended therebelo-w to receive liquid flowing through said apertures and providing for separation of sediment from the liquid, the drain body having a series of apertures outside the area tures providing for ow of liquid directly into the drain body thereby providing for drainage into the body'when the basket is clogged with sediment.

8. In a drain, a drain body having a removable lf cover element at the top lying practically flush with the top in engagement with the inner face of the wall thereof, a flange extending inwardly of the body and supporting the cover element,

and means providing for a flow of liquid into the body comprising drain apertures provided by grooves formed in the inner face of the wall of the body at 'the top and opening through the flange.

EDWARD W. N. BOOSEY.

of the rst named, aper-

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