US1623515A

US1623515A - Trap

Info

Publication number: US1623515A
Application number: US152284A
Authority: US
Inventors: Workman John Elmer
Original assignee: Individual
Current assignee: Individual
Priority date: 1926-12-02
Filing date: 1926-12-02
Publication date: 1927-04-05
Anticipated expiration: 1944-04-05

Description

Patented Apr. 5, 1927.

Joan-Emilia womiivrangor YORK; Passes-reveals.

TRAP.

, I Applicationfiled December 2, 192th Serial No: 1553;284;

1 v relates to traps and-itis n: o je t? of; h in e io t pro e e vice of this kind provided withm'eans to preventbackjflow of water or sewage and 5 which alsofprovided withfa readily removable lid; carrying astrainer. I

lt is ELlSOfjtll object; of the invention to providexa-device' ofthis kind employing a lid of-such dimensions wherein the desired lo ca-rrying; offofwwater or thelike is materially facilitated; V T Th iin snt n' co s ts finith d tai s of construction and in the combination and arrangement of the several parts of my imvantages are attained and the device rendered simpler, less expensive and otherwise more convenient and advantageous for use, as will be hereinafter more fully set forth.

The novel features of my invention will hereinafter be definitely claimed.

In order that my invention may be the better understood, I will now proceed to describe the same with reference to the. accompanying drawing, wherein :Q

Figure 1 is a view partly in section and partly in elevation illustrating a trap constructed in accordance with an embodiment of my invention;

Figure 2 is a view in cross section of the trap as herein disclosed with the ball valve and bridge piece omitted, the line of section ofFigure 2 being at approximately a quarter turn to the line of section of Figure 1.

As disclosed in the accompanying drawing, B denotes a basin member adapted to be fitted in a well known manner within the bell end of a sewer pipe or the like and which is provided at its lower portion with an inwardly disposed annular flange 1. The side wall 2 of the basin member B is also provided with diametrically opposed inwardly disposed ribs 3, the upper ends of which being flush with the top of the side wall 2. s

upper end portion of the side wall 2' of the member B and is provided with the inwardly directed lugs 4 disposed over the upper ends of the ribs 3. whereby the lid L may be held in applied position with respect to the basin member B through the medium of the screws 5 or the like, said screws being freely disposed through the lugs 4 but in threaded engagement with the ribs 3. y

proved trap whereby certain important, ad-

An annular lid L is engaged with the TheqlidLis ofp'ronounced diameter and has its upper surface 'conc avedi The peripheral portion of the lid L is provided withan annular rab'bet G-to receive the: marginal; portion of astrainer 7, said'stra'iner being maintained in; appliechposition by the screws- 8' or the likedisposefd through the-- peripheral portion, of the; strainerahd 'inf threaded engagement with the diametrically if opposed. lugs 9.- It is to be noted that the- Iid L 'Inay-be conveniently applied or removed which,inpracticegds of material ad vantage especially in the initial cost of production and furthermore in that it permits a ready replacement of a lid L when required and thus avoiding the necessity of installing an entirely new trap.

Snugly fitting within the central opening 10 defined by the flange 1 of the basin memher B is an annular valve seat 11. Disposed around this seat 11 is a washer 12 of Bab bitt metal or the like to assure a water-tight fitting of the valve seat. The upper portion of the valve seat is provided with an outstanding flange 14 overlying the flange 1 whereby the screws 15 may be employed to maintain the valve seat in position.

As herein disclosed, certain of the screws 15 are diametrically opposed and serve to hold to the valve seat a bridge piece 16ex tending radially across the valve seat. The central portion of this bridge piece 16 is upwardly disposed and provided with an opening 17 through which is freely disposed a rod 18. The upper extremity of the rod 18- is provided with a head 19 to limit the downward movement thereof with respect to the bridge piece 16 while the lower end portion thereof is in threaded engagement with a ball valve 20. Under normal conditions the ball valve 20 is unseated and sus pended from the bridge piece 16 by the en largement or head 19 of the rod 18.

Upon back flow of water, sewage, or gas, the ball valve 20 will be moved to its seat and thus effectually prevent such flow up and outwardly through the basin member B.

I find it of advantage to interpose between the extremities of the bridge piece 16 and the flange 14 of the valve seat the washers 21 surrounding the screws 15 coacting with the bridge piece 16,

From the foregoing description it is thought to be obvious that a trap constructed in accordance with my invention is particularly well adapted for use by reason of the convenience and facility with which it may be assembled and operated, and it will also be obvious that my invention is susceptible of some change and modification Without departing from the principles and spirit thereof and for this reason I do not wish to be understood as limiting myself to the precise arrangement and formation of the several parts herein shown in carrying out my invention in practice ex cept as hereinafter claimed.

I claim z A trap comprising a basin member provided with an inturned flange at its lower portion defining a central opening, a valve seat snugly fitting within such opening and provided with a flange overlying the flange of the basin member, means for securing said flanges together, a bridge piece disposed substantially radially across said central opening, certain of the means for se curing the flanges together holding the end portions of the bridge piece to the flange of the valve seat, a rod freely disposed through said bridge piece and extending through the central opening of the basin member, said rod having an enlargement above the bridge piece to limit the downward movement of the bridge piece, a ball valve underlying the valve seat, the lower portion of the rod and the ball valve having coacting means for connecting the same one to the other, an annular lid of material diameter having its inner marginal portion resting upon the upper portion of the basin member, means for detachably securing the lid to the basin member, and a strainer supported by the outer marginal portion of the lid.

In testimony whereof I hereunto ailix my signature.

JOHN ELMER lVORKMAN.