Trap-chamber cover.

Application filed August 21,1912. Serial No. 716,208.

To dll whom, it may concern:

Be it known that I, Herbert E. Reed, a citizen of the United. States, residing at Newton, in the county of Middlesex and 5 State of Massachusetts, have invented certain new and useful Improvements in TrapChamber Covers, of which, the following is a specification.

This invention relates to floors of bath 10 rooms and other apartments, a trap chamber being located below the floor and provided with a removable cover forming a part of the floor surface and adapted to be removed to afford access to a trap in said chamber.

The invention is embodied in a cover which when in place is inconspicuous and harmonizes with the surrounding portion of the floor, particularly when the latter is composed of tiles or cement, and is provided 20 with a lift whereby it may be. removed and replaced, the construction being such that when the cover is in place all the exposed surfaces of both the cover and lift are flush with the surrounding floor surface, the cover 25 being free from liability to breakage and disfigurement by the operations of removing and replacing it. The cover is used with a trap-chamber mouth which is a bushing adapted to be incorporated in a tile or ce³⁰ ment floor and to constitute a seat for the cover and a protection against breakage and disfigurement of the floor material surrounding the cover, the said mouth and cover collectively constituting an article of ³⁵ builders hardware, and the cover being adapted to hold a veneer of tile or cement harmonizing with the surrounding floor.

Of the accompanying drawings forming a part of this application—Figure 1 repre⁴⁰ sents a plan view of a portion of a tiled floor which includes a trap-chamber mouth and cover embodying my invention. Fig. 2 represents a section on line 2.—2 of Fig. 1. Fig. 3 represents a perspective view of the ⁴⁵ bushing. Fig. 4 represents a perspective view of the pan forming a part of the cover. Fig. 5 represents a sectional view of the stud shown by Fig. 2 removed from the pan. Fig. 6 represents a side view of the lift re⁵⁰ moved from the stud. Fig. 7 represents a side view showing the stud and lift assembled, the lift being raised.

The same reference characters indicate the same parts in all the figures.

⁵⁵ The surface of the floor surrounding the trap-chamber mouth is preferably of ornamental construction and formed by a veneering of tiles 12. 13 represents the upper portion of a trap chamber below the level of the floor surface, the said portion being here 60 shown as formeci in a cement base 12^a which supports the said veneering.

represents a metallic bushing incorporated in the floor and having its upper edge flush with the floor surface, the bush- 65 ing being here shown as provided xvith an inxvardly projecting flange 15 which is seated on the base 12^a and forms a seat for the cover hereinafter described. The said cover includes a metal pan having a bottom 70 16 adapted to bear on the flange 15, and a curb 17 formed to closely fit the interior of the bushing 14, the upper edge of the curb being flush with the upper edge of the bushing when the cover is seated. The cover 75 also includes a stud 18 secured to and projecting above the bottom of the pan, the upper end of the stud being flush xvith the upper edge of the curb 17. The stud is preferably secured adjustably to the pan, the 80 pan bottom being provided with a threaded orifice 19, and the stud with an external screw thread 20 engaging the thread of the orifice, provision being thus made for accurately adjusting the height of the upper end 85 of the stud. A lock nut 21 may be employed to secure the stud in its adjusted position. The bottom and curb of the pan form a recess surrounding the stud .18 and adapted to hold a veneer corresponding with the stir- 90 rounding floor surface, said veneer being here shown as composed of tiles 22 resting on a cement base 23, the tiles next to the stud 18 being preferably cut away to closely fit. said stud. I prefer to provide the stud xvith a 85 head 18' which overhangs portions of the adjoining tiles as shoxvn by Fig. 2 and assists in holding the same in place.

With the stud 18 is movably engaged a lift which is adapted to be raised above, the 100 cover and used as a handle whereby the cover may be manipulated., the lift having an exposed portion xvhich is normally flush with* the upper end of the stud, and may be engaged by a suitable instrumentality to 105 raise the lift to its operative position. The lift is preferably a rod 24 movable endwise in the stud 18, the latter being tubular, and provided with an outer head 25 which normally rests in a recess 26 in the outer end of 110 the stud, and with an inner head 27 adapted I to abut against an internal shoulder 28

1,069,180 formed on the bore of the stud. When the lift is depressed, the head 25 is flush with the outer end of the stud 18 and the head 27 is below the shoulder 28. The head 25 is 5 so formed that there is a narrow crevice between its margin and the wall of the recess 26 into which a linger nail or a blade maybe inserted to engage and raise the lift, the margin of the head 25 neing preferably bev10 eled to facilitate its engagement. When the lift is raised, as shown by Fig. 7, the inner head 27 bears on the shoulder 28, and the lift becomes a handle adapted to support the cover. When the lift is released, it 15 drops to the position shown by Fig. 2.

It will be seen that the tubular stud 18 is detachably and adjustably secured to the bottom of the pan, so that it may be readily removed to permit renewal or repair of the 20 veneering and may be adjusted to bring its upper end to a position flush with the upper edge of the curb 17.

My invention is not limited to use with tile or cement floors, and the veneer or fill25 ing inserted in the pan may be of any suitable material.