US2198696A - Sink and drainboard construction - Google Patents

Description

April 30, 1940. H. D. DRAIN 2,198,696

SINK AND DRAINBOARD CONSTRUCTION Original Filed March 10, 1938 INVENTOR.

ATTORNEYS.

Pa tented Apr- 30. r i v I UNITED STATES PATENT OFFICE SINK AND DRAINBOARD CONSTRUCTION Herbert D. Drain, Chicago, 111., assignor, by direct and mesne assignments, to Chicago Drain-'- ibfiianrdisco Inc., Chicago, 111., a corporation of.

Application March 10, 1938, Serial No. 194,996 Renewed December 13, 1939 4 Claims. (01. 4-189) The present invention relates to an improved composed of a relatively heavy wooden timber. typeeof sink and drainboardoonstruction which From the rear portion of the bed plate l there provides for a firm and secure support of a sink rises a verticalbackboard ll having a face porwithin an opening in a drainboard preferably tion l2 composed of linoleum or some similar covered with linoleum or the like, and has parcovering material. A metallic edge binder l3 5 ticular reference to a construction of this type extends about the outer portion of the backboard in which a single, easily assembled and water- H and over the edges of the linoleum covering. tight securingor supporting means is provided Extending from the rear bed plate is an between the sink and the drainboard. outer supporting timber I4 and an inner sup- 10 A principal object of the invention is the proporting timber l5. Mounted on the top of the vision of a sink to a drainboard mounting having timbers l4, l5 and I9 is a plywood drainboard an extruded aluminum. supporting and sealing platform I6. The plywood platform forms the member between and overlapping the sink and drainboard and over the plywood is mounted a the drainboard. covering layer ll of linoleum. k An additional object of the invention is the The linoleum is cemented to the top section provision of aconstruction of the type described of the plywood to produce a permanent seal in which a linoleum covered or similar drainboard therebetween. The cover may be of any wateris provided with a plywood base or supporting proof resilient material such as cork, rubber, board and a metallic sealing member positioned Masonite or the like. Stainless steel pressed into 2 in an opening in the drainboard for support of the desired shape likewise forms a satisfactory a sink. I drainboard surface material. A further object of the invention is to provide A raised strip I8 is mounted adjacent the outer a drainboard and sink mounting in which ameedge of the drainboard to prevent water from" tallic T-shaped supporting member is mounted spilling over the drainboard. Screws l9 extend in overlapped relation with respect to the sink through this strip and the linoleum and are an- 25 I and drainboard and adjustable take-up members chored in the plywood, thereby forming a rigid are provided for compressing the sink and drainconnection between the parts. Surrounding the board member against the overlapping portions outer edges of the timber II, the plywood section of the supporting member. IS, the linoleum strip l1 and the strip I8 is a 0 Still another object of the invention is the metallic molding striplll. The lower leg of the-' provision of a sink and drainboard mounting in molding strip is secured to the timber it by which a linoleum covered drainboard having an means of screws 2|. 9 opening therein is provided with a metallic sup- The central portion of the drainboard is cut porting ring of general T-shaped cross-section away to provide an opening into which a flanged. extending in overlapped relation with respectto sink 22 is fitted. This sink is of conventional 35 a sink and the drainboard and take-up screws V construction and if of cast iron it may be propass angularly through the lower portion of the vided with an inner enamel coating 23. Where 1 drainboard construction, then through the me 1 a stainless steel sink is employed its thickness tallic supporting ring, and in abutting relation 9 is somewhat less than cast iron sinksand the with respect to the sink member, whereby tightenameled coating is not necessary. i 40 ening of said screws causes compression of the The structure by which the sink 22 is mounted overlapping portions of the supporting member to the drainboard has many advantages over. sink against the drainboard-and sink, there being promountings known heretofore. The linoleum ll videda lead foil or other type of sealing medium is rabbeted about the opening into which the between the sink and the supporting member or sink is fitted as shown at.24. There is mounted 45 ring to insureawatertighteonnection. v in the sink opening a generally T-shaped ex- These and other objects will be evident upon truded aluminum sink supporting and sealing a considerationof the following specification and ring 25, the vertical leg of which fits .closely by reference to the accompanying drawing, in against the lower inner timber l5 and the inner which the single figure shows a sink and drainedge of the plywood platform It. The outward 50 board mounting constructed in accordance with horizontal extension of the T-shaped ring 25 fits the invention and cut away to show two sides into the rabbeted portion 24 of the linoleum ll of the mounting in section. and the inward horizontal extension of the T- In the construction shown in the drawing there section forms an overhanging ledge which exu is provided a rear bed plate [0 which may be tends into the opening into which the sink is fitted. The lower or vertical section of the supporting'ri'ng is securedto the inner timber l5 and to the rear section ill by means of screws 26.

In assembling the sink construction the support ring 25 is placed in the position shown inv the drawing with respect to the drainboard, and the flange of sink 22 is placed beneath the inner extension of the supporting ring. Thereafter the timber I5 is drilled to form a series of openings,

one of which is shown at 21, and the vertical leg of the rim member is tapped to receive a series of machine screws, one ofwhich is shown at 28. It will be noted that the machine screw 21B extends angularly through the timber l5 and the sink supporting ring 25. The inner end of the machine screws bear against the under side of the flange of sink 22 and holds the sink in assembled relation with respect to the supporting ring. In drilling the opening for screws 28 the drill may contact the under edge of the sink flange sufiiciently to provide a seat for the screws 28, as indicated in the drawing.

Before the sink is assembled with the supportingring a plurality of lead foil strips are folded about the top and edge of the sink flange and these layers of foil are inserted between the inner edge of the sink flangeand the supporting ring when the assembly is complete. Usually the foil layers extend alongside the vertical leg of the supporting ring somewhat beyond the sink flange to provide extra material for sealing purposes. After placement of the machine screws 28 the assembly may be inverted and a suflicient amount of heat is applied to the foil extensions to cause the foil to melt and fill in the space between the vertical portion of the supporting ring and sink to form a seal 29. The supporting ring 25 pref-. erably is provided with grooves as shown at 30,

. into which the molten. metal may flow to form an interlock. It is not necessary that the entire body of the foil layers be melted, since the multilayer nature of the foil assembly provides a watertight seal between the top of the sink flange and the supporting ring when the assembly is compressed together.

An important feature of the sink mounting described is that the tightening of machine screws 28 causes the entire assembly of elements to be drawn together. On the drainboard side of the supporting ring 25 tightening the screws 28 causes the timber l5 to be pressed upwardly, and this pressure is transmitted through the plywood platform l6 and the linoleum I! to the overhanging ledge of the supporting member 25. This effectively binds the elements together and prevents any possibility of water leaking from the drainboard into or through the joint between the supporting ring and the drainboard, Also, tightening the screws 28 causes the sink member 22 to be pressed upwardly with respect to the inner overhanging ledge of the supporting member. thereby producing a rigid suspension of the sink The molten foil flows into irregularities between the metallic sink flange and the vertical leg of the metallic supporting ring and there is provided an effective seal that prevents water from leaking into or through the joint between. the sink and the supporting ring 25.

The dimensions of the drainboard and sink assembly described may vary considerably. In one satisfactory embodiment of the invention the plywood platform I6 is of the order of inch thickness and the linoleum layer I'I constituting the top of the drainboard may be approximately one-half of this thickness. The timbers I4 and I5 are in the nature of reinforcing strips and may be of any suitable dimension.

It is preferred that the supporting ring 25 be of extruded aluminum, it being possible by the extrusion of this type of metal to produce turns without broken joints. In this manner the entire ring may be produced of one piece of material which has a single joint.

It will be recognized that many changes may be made in thestructure which is described herein for purposes of. explanation without departing from the scope of the invention, and such changes are intended to be included in the appended claims.

I claim:

1. A sink and drainboard assembly, comprising a drainboard, a sink with an outwardly turned flange, a substantially T-shaped supporting ring provided with a downward extension positioned between said drainboard and sink and outward extensions over said drainboard and said sink flange, and means for pressing said sink flange and drainboard upwardly beneath said ring extensions.

2. In a sink and drainboard assembly, a drainboard structure, a linoleum cover for said structure, said linoleum and said structure having a sink receiving opening, a substantially T-shaped supporting ring having an overhanging portion rabbeted into said linoleum, a sink having a flange positioned beneath an opposite overhanging portion of said ring, and means for maintaining said sink and drainboard construction in compressed relation with respect to the overhanging portions of said support.

3. In a sink and drainboard assembly, a drainboard having a lower reinforcing member and a sink receiving opening, a supporting ring of substantially T-shaped cross-section fittedinto said opening and having inner and outer overhanging portions and a downwardly extending portion, a sink positioned beneath the inner overhanging portion of said ring, and a screw member passing angularly upwardly through said reinforcing strip and the vertical portion of said ring, and bearing on its end against the under portion of said sink flange.

4. A sink and drainboard assembly, comprising a drainboard, a sink provided with an outwardly turned flange, a substantially T-shaped supporting member provided with a downward extension positioned between said drainboard and sink and provided with outward extensions over said drainboard and sink flange, means for securing the downward extension of the supporting memher to the edge of the drainboard with one of the

Images