уснали the likе.
Year: 1899

page_text: уснали the likе.
A communication from JOHN ELDER, of Corona, County of Queens, State of New
York, United States of America, Plumber.
I, ALFRED JULIUS BOULT, of 111, Hatton Garden, in the County of London,
Chartered Patent Agent, do hereby declare the nature of this invention to be
as follows:-
The main object of this invention is to provide an improved trap for drain
pipes having a valve which will automatically open to permit the waste water
to escape into the sewer or other drain, and will automatically and positively close
so as to effectually prevent sewer gas or waste water from backing up through
the trap.
This and other important ends are attained briefly by means of a trap having
a valve operated by the water-supply and a float-valve which is operated by the
water passing through the trap so as to control the operation of the waste-valve
by the water-supply.
The trap is formed with an inlet connected to the drain pipe leading from the
house, a U-bend which holds the water-seal, an outlet which is connected to the
sewer or street drain pipe, a plugged cleaning pipe, a vertical plunger chamber
and an outlet, which is protected by a strainer and is connected by a pipe with
a tank, containing a valve-actuated float.
·
At the junction of the bend and waste outlet, is formed a valve-seat, which is
fitted to and normally closed by a valve, so as to effectually prevent sewer gas
or waste water from backing up from the waste pipe, through the trap.
The valve is carried by a tubular stem, which is fitted to work vertically in
the stuffing box of a diaphragm extending across the vertical plunger chamber
above the waste outlet, and on the upper end of the valve stem is fixed a plunger
fitted to work in the chamber. The upper end of the chamber being closed by
a screw plug, the hollow stem of the valve permits the air to escape therethrough
when the plunger moves and this prevents its being locked by the air.
Through the diaphragm extend small escape orifices, having simple flap
alves, which, when the valve is raised to its fullest extend, are pressed thereby
gainst, so as to close the orifices and prevent the water from escaping there-
hrough.
Into the chamber above the diaphragm leads a pipe, which is connected to the
ain water-supply under pressure, and which is normally closed by a valve.
he valve has a sliding stem extending to the tank, into position to be operated
the head of the pivoted float.
By this arrangement, when waste water runs from the house into the bend of
e trap, the waste valve being closed, it (the waste water) flows outward through
e branch pipe into the tank, thereby raising the float, which in turn opens
e supply valve. The water under supply pressure, then runs
Price $11
throw L 1

page_text: supply pipe into the chamber above the diaphragm and acting on the underside
of the plunger, positively raises the same and thus the waste valve, and permits
the waste water to escape from the trap into the waste pipe.
After the waste-water has run out, it falls in the tank permitting the float to
fall and the supply valve to shut off the supply from the pipe.
The water in the chamber above the diaphragm, then escapes through the
orifices, washes the valve, and causes the same to fall and close the trap against
sewer gas and back waters.
A modified form of this trap is provided with means for positively opening
the waste valve to permit the waste water to escape, and in addition thereto with
means for positively closing the valve against back water from the sewer.
This is accomplished briefly by causing the water backing up in the waste
pipe to operate a float valve which in turn causes the water supply to close the
waste valve.
The waste pipe opens in to a float tank, in which is a pivoted float having an
arm in operating connection with the stem of a double valve. The valve is
arranged alternately to cut off the pipe, which leads from the valve into the
plunger-chamber and another water-supply pipe which leads into the plunger-
chamber above the valve-actuating plunger. In the upper end of the tubular
valve stem is a spring held-valve which will be held open by its spring to permit
the air to escape when the plunger rises, but will be closed by the water under
pressure coming from the supply pipe and thereby cause said supply to depress
the plunger and valve.
When the
The operation of this modified form of apparatus is as follows:
waste water runs from the house into the trap, the valve will be opened and
the waste water permitted to escape, the double valve normally leaving the
supply pipe open to be controlled by the valve as previously described.
When however the water from the sewer or street drain from any cause backs
up into the waste pipe, it enters the float tank, raises the float, and shifts the
valve so as to make it open the pipe and close the pipe. The pressture is there-
fore cut off from the plunger and admitted into the chamber above said plunger,
thereby positively closing the waste-valve and effectually preventing the water
from backing up through the trap. When the waste-water float falls again,
the trap is set for operation by the float as before described.
Dated this 11th day of May 1899.
BOULT & WADE,
Agents for the Applicant.
Improvements in or relating to Traps for Drain Pipes and the like.
A communication from JOHN ELDER, of Corona, County of Queens, State of New
York, United States of America, Plumber.
I, ALFRED JULIUS BOULT, of 111, Hatton Garden, in the County of London,
Chartered Patent Agent, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
The main object of this invention is to provide an improved trap for drain
pipes having a valve which will automatically open to permit the waste water
to escape into the sewer or other drain, and will automatically and positively close
so as to effectually prevent sewer gas or waste water from backing up through
the trap.
"This and other important ends are attained briefly by means of a trap having

page_text: a valve operated by the waste supply and a float-valve which is operated by the
water passing through the trap so as to control the operation of the waste-valve
by the water-supply.
In order that this invention may be fully understood, I will first describe
5 in detail the mode in which the same is carried into practice and then particu-
larly point out the various features of the invention in the claims.
Reference is had by letters to the annexed drawings in which corresponding
parts are designated by like letters throughout.
Figure 1 is a sectional elevation of a sewer trap constructed in accordance
with my invention.
Figure 2 is a sectional plan view of the same.
Figure 3 is a sectional elevation representing a modification of the inven-
tion.
Figure 4 is a reduced sectional view of part of the same.
The trap illustrated in Figures 1 and 2 is formed with an inlet A connected
to the drain pipe leading from the house, a "U" bend which holds the water-
seal, an outlet C which is connected to the sewer or street drain pipe C¹, a
plugged cleaning pipe D, a vertical plunger chamber E, and an outlet F, which
is protected by a strainer and is connected by a pipe H with a tank I, contain-
ing a valve-actuating float P.
At the junction of the bend B and waste outlet C, is formed a valve-seat K;
which is fitted to and normally closed by a valve L, so as to effectually prevent
sewer gas or waste water from backing up from the waste pipe C through the
trap.
The valve L is carried by a tubular stem L', which is fitted to work vertically
in the stuffing box L² of a diaphragm L³ extending across the vertical plunger
chamber E above the waste outlet C, and on the upper end of the valve stem L'
is fitted a plunger M, fitted to work in the chamber E. The upper end of the
chamber E being closed by a screw plug E, the hollow stem L of the valve
permits the air to escape therethrough when the plunger moves and this pre-
vents it being locked by the air.
Through the diaphragm L extend small escape orifices L, having simple
flap valves L5, which, when the valve L is raised to its fullest extent, are
pressed thereby against, so as to close the orifices L' and prevent the water from
escaping therethrough.
Into the chamber E above the diaphragm L³ leads a pipe N, which is con-
nected to the main water-supply under pressure, and which is normally closed
by a valve O. The valve O has a sliding stem O' extending to the tank I, into
position to be operated by the head P¹ of the pivoted float P. The head P¹ forms
one arm of an angle lever, to which the float P is adjustably secured by a set
screw and stem, as shown in Figure 2, said angle lever being pivoted to a fixed
bracket and its upwardly projecting arm pressing against the valve stem 0¹ in
a manner similar to that illustrated in Figure 3 in connection with the float R.
By this arrangement, when waste water runs from the house into the bend B
of the trap, the waste valve L being closed it (the waste water) flows outward
through the branch pipe into the tank I, thereby raising the float P, which in
turn opens the supply valve 0. The water under supply pressure, then runs
through the supply pipe N into the chamber E, above the diaphragm L' and
acting on the underside of the plunger M, positively raises the same and thus
the waste valve L, and permits the waste water to escape from the trap into the
waste pipe Cl.
After the waste water has run out, it falls in the tank I, permitting the float P
o fall and the supply valve to shut off the supply from the pipe N.
The water in the chamber E above the diaphragm L3, then escapes through
he orifices L, washes the valve L, and causes the same to fall and close the trap
gainst sewer gas and back water.
The modified form of the trap shown in Figures 3 and 4, is provided with

page_text: means substantially as shown in Figures 1 and 2 for positively opening the
waste valve L to permit the waste water to escape, and in addition thereto with
means for positively closing the valve L against back water from the sewer..
This is accomplished briefly by causing the water backing up in the waste
pipe C to operate a float valve which in turn causes the water supply to close
the waste valve L.
As shown in Figures 3 and 4, the waste pipe C opens into a float tank Q,
in which is pivoted float R having an arm Ri in operating connection with the
stem S¹ of a double valve S. The valve S is arranged alternately to cut off the
pipe N, which leads from the valve O into the plunger chamber E, as shown
in Figures 1 and 2, and another water-supply pipe T which leads into the plunger
chamber E above the valve actuating plunger M¹. In the upper end of the
tubular valve stem L is a spring held valve U which will be held open by its
spring to permit the air to escape when the plunger M¹ rises, but will be closed
by the water under pressure coming from the supply pipe T and thereby cause
said supply to depress the plunger M and valve L.
"
When the
The operation of this modified form of apparatus is as follows:
waste water runs from the house into the trap, the valve L will be opened and
the waste water permitted to escape and by the means described in connection
with Figures 1 and 2, the double valve S normally leaving the supply pipe N
open to be controlled by the valve 0 as previously described.
When, however, the water from the sewer or street drain from any cause,
backs up into the waste pipe C¹,. it enters the float tank Q, raises the float R,
and shifts the valve S so as to make it open the pipe T and close the pipe N.
The pressure is therefore cut off from the plunger M' and admitted into the
chamber E above said plunger, thereby positively closing the waste valve L and
effectually preventing the water from backing up through the trap. When
the waste-water float R falls again, the trap is set for operation by the float
valve as before described.
!
Having now particularly described and ascertained the nature of the said in-
vention, as communicated to me by my foreign correspondent, and in what
manner the same is to be performed, I declare that what I claim is:-
1. A trap for train pipes comprising in combination a waste valve, a plunger
chamber, a plunger therein connected to the waste valve, a water supply pipe
leading into the plunger-chamber, a valve in the water supply pipe, a waste
water tank connected to the trap, and a float in the tank to operate the supply
valve.
2. A trap for drain pipes comprising in combination a waste valve, a plunger
chamber, a plunger therein, a perforated diaphragm separating the plunger
chamber from the waste valve, the valve stem working through said diaphragm
and carrying the plunger, a water supply pipe leading into the plunger chamber,
a valve in the water supply pipe, a waste water tank connected to the trap; and
a float in said tank to operate the supply valve.
3. A trap for drain pipes comprising in combination a waste valve, a plunger
chamber, a plunger therein connected to the waste valve, water supply pipes
leading into the plunger chamber on both sides of the plunger, valves to cut
off both said supply pipes, a waste water tank connected to the trap, a back water
tank connected to the waste-pipe, and floats in said tanks to operate said valvės
alternately.
4. The complete trap for drain pipes substantially as described or illustrated
in Figures 1 and 2 or in Figures 3 and 4 of the accompanying drawings.
Dated this 9th day of February 1900.
BOULT & WADE,
Agents for the Applicant.