US1792345A - Adjustable floor drain - Google Patents

Description

Feb. 10, 1931. D. s. WILLIAMS ADJUSTABLE FLOOR DRAIN Filed June 5, 1928 INVENTOR Z B rm ATTORNEYS level of the safe pan and conveyingit im- Patented Feb. 10, 1 931 PATENT. FEE FE 'DAVID S. WILLIAMS, PORTLAND, OREGON" Anans'rABL-E rLoon DRAIN Application filed June 5, 1928. serial nmasaoca.

I :This invention relates to drains and has a particular reference to drains which are permanently emplaced'in a floor, roof, bottom of a tank, or the like. v p i i The common 'type'of floor drain consists of. a sleeve permanentlyset into a floor of f concrete, metal, stone or the like, this sleeve being connected with a waste-pipe. or trap beneath the floor, and having an intake strainer in theform of a perforated plate usually set level with the floor, or, more often, i n.the bottom of a depression or safe pan for thecollection of the liquid. Frequently, the'intake strainer is not" set level with the bottom of the safe pan so that a certain amount of liquid collects in the pan and fcannot flow away, and when a large quantity of liquid is 'supplied at once the safe pan floods be'causelthe drain is unable to carry v 1 away the excess liquid rapidly.

. It is the-principal objectof this invention to provide a drain which prevents flooding lofthe safe pan when a large quantity of liquid isjsupplied, by removing the greater portioniof liquid from a point above the mediate'ly to a point well below the bottomof the pan, while the liquid in the pan below the elevated opening of the drain flows through suitable openings around the drain tube and directly into the waste pipe or trap. Thus a drain is provided which discharges liquidto the full capacity of the waste pipes without flooding and with great rapidity, whereby fewer drains may be employed, each of which 7 remains dry and sanitary when not in use because no liquid is allowed to collect in the v safe pan.

In accordance with this objectthe usual J40 floor drain sleeve is provided with an aux- 7 iliary sleeve having weep slots for the discharge of liquid below the level of the drain tube which is adjustably mounted in this sleeve uponspaced projections formed in the 5 interior '-walls thereof. The draintube is provided 'with interrupted spiral adjusting bars which rest upon the projections 'inthe auxiliary sleeve. By means of these spiral bars thevdrain tube may be adjusted so that the intake opening thereof is elevated any dsired distance above the level of the safe pan, while the discharge; opening of the tube lies well below thebottom of the pan. 'Accorda ingly, when large quantities of liquid are supplied tothe drain, the greater portion thereof is removed from a point above the level of the safe pan and conveyed directly into the waste pipe or trap below the floor,

while the liquid in the safe pan below the level of the drain tube intake flows. along the outside of the tube through the weep slots and interrupted portions of the adjusting bars. The interrupted portions ofthe adj usting bars also serve as release slots whereby the drain tube may be readilylifted out of the sleeve, the supporting projections on the sleeve passing throughthese slots when the tube is beingremoved.

For va'better understanding of the invention, reference is made to the accompanying drawings, in which i Fig. 1 is a vertlcal section through the im proved drain of this invention;

Fig. 2 is a plan view of the auxiliary sleeve; and r. Fig. 8is a perspective view thereof. In these drawings;v numeral 10 designates the'body or main sleeve of the drain which is formed cup-shaped on its upper; 'surface so as to provide the customary safe pan, this main body being emplaced in concrete as shown, or otherwise fastened to a wooden'or metal floor, roof, tank bottom, or other surface. Over the top of the main body is placed the water-proofing 11, which may be lead sheathing or other sheet metal, or merely some composition material through which only one hole is cut for the reception of the other parts of the drain. The upper and lower openings of body 10. are preferably threaded as shown, the lower threads 12 being adapted to receive thewaste pipe or trap connection, disposed beneath the 'floor or other surface, while the upper threads '13 are adapted to receive anauxiliary sleeve or lock screw 14. l e

This sleeve orlock screw 14' is illustrated particularly in perspective in Fig. 3 and in planin Fig. 2. The interior surface of the tubular portion oi the Sleeve 1; is provided.

I with a series of longitudinal weep slots 15,

which communicate with weep slots 16 cut through a flange 17 formed on the upper end of the tubular sleeve 14. lVhen this body and the sleeve 14 is absolutely waterall in the same planes.

tight, any seepage water flowing sleeve 14. I

The interior surface of sleeve'14 is'provided at spaced intervals with several rows of integral projections 19 preferably placed between the interior weep slots 15 as shown 7 particularly inFigs. Q and 73.: [These projections 19 are preferably. staggeredwith res'pect to each other in the manner illustrated particularly in Fig. '1,,' so that theyare not Accordingly, the auxiliary sleeve or look screw 14 appears in perspective as-shown in F 3.

Inserted in the opening of auxiliary sleeve 14 is the drain tube 20, which is preferably belled at its upper end asshown, and provided with a flange-21., This upper end, being the intake opening of the drain tube, is provided with a suitable strainer 22, which is preferably of the bar type as illustrated in Fig. 1. a This strainer may be secured in place in any suitable, way. The exterior surface of drain tube 20 is provided with a plurality of adjusting bars 23, which arepreferably cast integral with the draintube'ZO and are preferably made slanting, as shown in the form of a spiral. These bars are interrupted at 24 so as to form slots. longitudinally of the exterior surface of-thetube 20, but these slots are not co-linear, but are staggered as illustrated in Fig. 1. w i

Accordingly, when drain tube 20 is inserted in auxiliary sleeve 14, the adjusting-bars 23 thereof are engaged by projections 19 so that the drain tube is supported by these projections. Inasmuch as adjusting bars 23 are made slanting, the elevation of the intake opening of the drain tube may be adjusted with respect to the safe pan or the top of auxiliary sleeve flange 17 merely by rotating the drain tube 20. If a higher elevation of the tube is desired,oit is rotated from left to right, and if it is desired to depress the tube into sleeve 14, it may be rotated from right to left.

The slots 24 in adjusting bars 23 allow the drain tube 20 tobe inserted rapidly without the necessity of screwing it down, be-

cause the tube may be inserted so that projections 19 pass through slots 24 until the required elevation of the drain tube is obtained and then the tube is turned'slightly so that the projections 19 engage the bars through weep slots 16 and 15 down the inside of the from left to right because the slots 24 are staggered as shown. This staggering is done so that if, in adjusting, the tube should slip downwardly, it would stop'at'the next succeeding adjusting bar and not fall all the way through, which would take place if the slots 24 were in alignment. Obviously, the

drain tube 20 may be inserted as far as it I willgo, so thatffiange 21 will rest upon flange 17 of sleeve 14, in the manner illustrated in phantom'in Figure 1.

In operation, the drain tube 20 may be elevated to any desired point merely by adjusting the tube in auxiliary sleeve 14 in the manner described. Assuming that the drain is to be supplied with a large amount of water or other liquidsothat the safe pan would ordinarily overflow in the common typeof drain because the water is not carried to a point substantially below the point where it is introduced into the drain; in the new drain, however, the greater amount. of the liquidis withdrawn through strainer 22 from a point substantially above the surface of the'safe pan and conveyed through drain tube 20 into the waste pipe or trap below the floor. The water in the safe pan below. the intake of drain tube 20, however, does not collect or tend to flood, but flows through weep slots 16 and 15 between the inside surface sleeve 14 and the outsidesurface of drain tube 20 and into the waste pipe or trap below;, In order that adjusting bars 23 do not close off the annular passage between drain tube 20 and sleeve 14, the slots 24 also cooperate to provide a weep slot for the passageof the liquid so that it does'not accumulate'inthe drain pan but may flow freely into the waste pipe or trap below.- In any-case,;no matter what the elevation of drain tube 20 may be, the

liquid is carried well below-the intake opening thereof by the elongated tube portion thereof so that no-fiooding can occur. Furthermore, as weep slots 14 are made flush with the bottom of the safe pan, noliquid can accumulate or remain in the drain pan, as often occurs in the ordinary type of drain, because of a flange on the drain which rises above the bottom of the drain pan.

- It will'be seen that the new drain provides a very inexpensive and effective drainwhich removes liquid from a floor or other surface without flooding, and to the 'fullcapacity of the wastepipes below the floorto which the drain is connected. Because of flooding, the drains in common use are slow in remo' ing liquid and several of them must be used at one time in order to removethe liquid effectively. By providing a drain of this invention, on the contrary,-several of the old types of drains may be entirely eliminated, because the new drain is as effective as a number of the old drains for removing. the same amount of liquid. Even when. the

drain tube 20 is depressed to its lowermost position as shown in phantom in Fig. 1, the

liquid will be rapidly carried away because I it flows through weepslots 16 in flange 17 as well as through strainer 22 to a point well-v 1 mounted.

below the surface in fwhich the J drain is Although a specific, embodiment of the invention has been illustrated and described; it is to be understood that the embodiment is susceptible'to many changes within the scope of the invention. Amongsuch changes may f be thevariation of the pitohof the slanting adjusting bars 23, whereby a morerapid adjustment is obtainable, or-these bars may be made horizontal, the adjustment being o-btained by working the tube either up or 7 down so that the'projections 19 pass through slots 24, and then rotating the tube slot" slightly when the required adjustment is obtained so that adjusting bars 23 restuo-pn the projections 19 at that point.

I claim: j V

, 1. In a drain, the combination of a tubu- I lar sleeve adapted to be connected to a waste pipe, said tubular sleeve having a plurality of Weep slots in theinterior of the sleeve, a plurality of projections spaced along the aforesaid interior ofthe sleeve, and admin tube adjustably supported within the sleeve upon said projections.

' 2. In a drain, the cQmbinationof a tubular sleeve adapted to be 'connected to. a'waste. pipe, said tubular sleeve having a'plurality' of weep slots in the interior of the sleeve, and 7 :1 a plurality of drain grooves communicating therewith a plurality of projections spaced along the aforesaid interior of the sleeve, and

" avdrain tube supported within the sleeveupon 7 said projections.

' In testimony whereof I afi'iXmy signature. I

' 7 DAVID S. WILLIAMS.

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