The Providence news. (Providence [R.I.]) 1891-1906, 1905-01-05


on the subject OF Traps. the Right and
the Wrong"
one OF the best features OF the lecture
was the blackboard illustrations. which
accompanied the lecture. making all that
was said very plain to those who listen
cd The remainder of the session was de-
voted to general business and routine
matters The lecture was in part as fol-
lows.
The subject wish TO submit TO the
members OF this association Is a mat
ter that is the most important I'm the
plumbing trade, and a goodly number OF
the laws that now exists in the plumbing
trade and ordinances of the city OF Provi-
dence and other cities throughout tse
United States, where sanitary conditions
are considered have affected. are the du-
ties OF a vessel known as a trap.
The question OF traps is a first consid-
Grafton IN the matter OF plumbing and it's
different branches while other matters
are a secondary consideration such as
water and u branches.
All waste matters arc 10 be taken care
of by the plumber in order that all sewer
gases may be prevented from entering the
several rooms or apartments where hu-
man lives are In danger. while It's after
effects produce sickness and I'm some
cases death.
The Inconvenience OF sewer gas is read
lily taken care OF by means OF a trap con-
tanning "A certain amount OF water to
prevent sewer gases from entering the
house.
Traps were invented for the purpose of
preventing sewer gases from entering
the house and at the same time allowing
al waste matters TO pass through to the
sewer.
All fixtures In house are connected with
the sewer by traps such traps to contain
q seal OF water of several inches.
a considerable amount Of matter that
will collect on the sides on the inlet from
the collar 20 the seal OF water in tho
trap. and II must also he remembered that
there IS more or less extent OF gases that
are pressing against the interior surfaces
OF this trap. strong pressure on the sewer
side is apt To force the seal In tho short
dip. and yet supposing we place trap
with "A deep seal under the hxturo to
Withstand any pressure OF air from the
main sower will be still at loss TO get rid
ot the matter in the waste pipe from the
water seal on the house side, but re-
mcdy has been found by placing the trap
as near the fixture as possible In order TO
keep as much Of the waste pipe on the
sewer side OF the trap.
may he properly understood Il must be
considered what is meant by atmospheric
pressure.
In order TO avoid this syphonage Of
water from the trap II is considered neces-
sary TO have the same vented and so ar
ranged 20 he conveyed 10 the outer air,
thus allowing the water TO pass out OF the
pipe 20 its fullest capacity and not draw
ins on the water seal for II can be readily
seen there is pressure on. There are also
other aesons why traps should be ven
tilated and that Is why traps lose their
water first by capillary attraction and
evaporation. so that u acts as a safeguard
when tho seal is broken whereas the air
will be carried through the vent 10 the
outer air from tho 1Ntlire side or the
lower side of trap
There Is an exception to This and that IL
damp weather and az times when there
is no water I'm the trap. when the air Is
heavy would form a downward current
and the sewer gas would rise and enter
the house.
by evaporation the trap Is exposed 20
more or less heat where there Is con-
slant danger OF evaporating unless filled
by fresh supply Of water.
The traps that are considered the most
efficient and most durable are those that
have no partitions and have smooth i'm
side surface that no thread could become
80 arranged as 10 stop all passage OF
waste matters
JEWELLERS NOMINATE OFFICERS
Last evening the jewellers held a very
interesting session, at which time oppor-
tunity was taken TO indorse the resolu-
tion OF Mr. Hogan Of the school commit
tee relative 10 child labor I'm this state
and city
The ideas contained I'm tho resolutions
were such as the jewelers. have been
contending for some time and they appre-
ciated the step taken 20 such an extent
that they thought ~ good thing TO on
dorse the same.
There was y great deal or discussion 81
this matter among tho members present
AZ the meeting last evening and several
suggestions we're made as 10 the best