US1612195A

US1612195A - Trap

Info

Publication number: US1612195A
Application number: US3351A
Authority: US
Inventors: Robert O Kirchhan; Charles O Kirchhan
Original assignee: Individual
Current assignee: Individual
Priority date: 1925-01-19
Filing date: 1925-01-19
Publication date: 1926-12-28
Anticipated expiration: 1943-12-28

Description

Dec. 2s ,1926. 1,612,195

R. O. KIRCHHAN El' AL TRAP Filed Jan. 19. 1925 Rmb QPL D Kmhhan Patented Dee. 2S, 1926.

unirse stares ROBERT 0. KRCHHAN AND CHARLES 0.

KIRCHHAN, OE MILVAUKEE, XTISCONSN.

TRAP.

Application tiled January 19, i925. Serial No. 3,351.

This invention relates to certain new and useful improvement-s in traps more particularly of the drain type designed to be incorporated in the sewerage and drainage system of a building.

It is one of the objects of this invention to improve and simplify the construction of drain trapsand to provide positive protection against the backing-up of water from the main sewer into the building drain.

It is another object vof this invention to provide a drain trap or valve ofthe character described which is normally open to permit the free flowage of drainage therethrough to the main sewer, and which is quickly closed upon the water backing-up through the trap above a predetermined level to thus prevent overflowing of the sewer water into the building. .t

lilith the above and other objects 1n view which will appear as the description proceeds, our invention resides in the novel construction, combination and arrangement of parts substantially as hereinafter described and more particularly defined by the appended claims, it being understood that such changes in the precise embodiment of the hereindisclosed invention may be made as come within the scope of the claims.

In the accompanying drawing, we have illustrated one complete example of the physical embodiment of our invention constructed according to the best mode we have so far devised for the practical application of the principles thereof, and in which:

Figure 1 is a view, partly in vertical section and partly in side elevation, of a drain trap embodying our invention, and

Figure 2 is a fragmentary view taken transversely through Figure 1 on the plane of the line 2-2.

Referring now more particularly to the accompanying drawing, in which like numerals designate like parts throughout the several views; the numeral 5 designates a casting which is preferably formed in one piece and is of approximately inverted T-shape, the transverse portion or head of the "i" having its ends 6 and 7 designed for connection with the main sewer and the building drain, respectively. The main sewer is adapted to be connected with the end 6 by a suitable pipe or conduit 8 and the end 'l' is adapted to be connected with the building drain through a suitable drain pipe, tile or other conduit 9. l

rllhe vertical portion 10 of the trap prorides a float chamber 11, the upper end of which is normally closed by a removable Cover 12 secured in place by removable fasl tenings 13 and having a water tight gasket 14C. The extreme upper end of the fioat chamber above the maximum water level, which is indicated by the dotted line 15, is connected with the usual vent by a conduit 16 of suitable type.

The inlet 7 is preferably provided with a recess or indented portion 17 to receive lead or other packing means 13 to secure the building drain 9 in position and bolted or iii otherwise secured, as at 18, to the inlet port or opening 19 is a valve sleeve 2O which is preferably of bronze or other acid resisting material. The outer end 21 of the sleeve is tapered in the manner illustrated in Figure 'i5 1 to provide a seat for a valve 22 hingedly supported from the sleeve by an arm 23 secured between a pair of spaced bracket arms 24 formed on the sleeve 20 by a pivot pin 25. The arm 23 extends beyond the pivot 25 at an angle to the valve, as at 26, and is provided with a pair of links 27 pivotally secured to the opposite sides thereof by a pin 2 8, the other end of the links being pivotally connected by a pin 29 to the opposite sides of a float lever 30 at a medial point. One end of the float lever is pivoted between extensions 31 of the bracket arms 24 by a pivot pin 32 and the other end thereof is bifurcated to receive the flattened stud 33 of if a float 34: which is pivoted therein by a pin 35.

The float 34 is preferably of copper or other suitable material and the weight thereof together with that of the lever is sufficient to normally maintain the valve 22 in its full line position illustrated in Figure 1. In the event the water Within the trap raises to a height substantially equal to the dotted line 15, the float engages the valve its) 22 with its seat 21 to effectively and positively close the inlet 19, disconnecting the building drain and the sewer and the greater the back pressure of water from the sewer, the tighter valve 22 is engaged with its 1er seat.

The leverage arrangement shown in the drawing insures the maximum of closing stress and the instant opening of the valve upon the dropping of the water below the line 15. The valve chamber 11 is preferably formed with an oit-set 36 t'o accommodate the leverage arrangement as clearly shown in the drawing.

What We claim as our invention is:

l. A device of the character described, comprising a chamber having an inlet and an outlet, means connecting the inlet with. a source of fluid supply, means connecting the outlet With a discharge, a tubular sleeve adjacent the inlet and having a valvev seat, a valve engageable with the seat, a lug carried by the sleeve, means pivotally securing the valve to the lug, a second lug,` carried by the sleeve and in alignment With the first-mentioned lug, a float mounted Within the chamber and adapted to 'fellow the fluid level in the chamber, a lever pivot-ally connecting` the float with the second-mentioned lug, an arm projected from the valve, and link means pivotally connecting,- the arm with said lever to open and close the valve upon the rise and fall, respectively, of the float, said lever, arm, and link means being in alignment with the lugs eXtended from the sleeve.

Q. A device ot the character described,

Leie, 195

comprising a chamber having an inlet and an outlet, means connecting the inlet with a drain, means connecting the outlet with a sewer, a tubular sleeve surrounding the inlet and providing a valve seat, a valve engageable with said seat, means pivot-ally snpporting the valve from said sleeve, a loat mounted within the chamber and adapted to rise and fall With the increase and decrease in the Water level in said chamber, a lever having,- one end pivotally connected with said float, an arm formed integral with said sleeve and to which the other end of said lever is connected, an arm extending from said valve member, and link means pivotally connecting said arm With the medial portion of said lever whereby falling of said float member by a decrease in the Water level in the said chamber opens said valve and an increase in the Water level a predetermined degree closes the valve.

in testimony whereof We a-HX our signatures.

ROBERT O. KIRCHHAN. CHAS. O. KIRCHHAN.