The Cairo bulletin. (Cairo, Ill.) 1???-1928, 1908-08-20

adjustments to line and grade Of pipe
t laid directly upon the bottom of the
trench, must be done by scrapiua
away or filling in with earth aud com
p pacing the same under the body OF
5 the pipe and not by blocking on
, weighing M. Before LAYING, the intc,i
or Of the bell shall be carefully wiped
: smooth and clean and the annular
space shall be free from dirt or NOR
tar A narrow gaskct of packing shah
, be properly calked into each joint af
ter which Portland cement mortar,
composed Of one "a part C &C
i tment and one ~ part e clcan
. sand, shall be introduced therein, an :
such saskct shall be Of one piece Of
sufficient length TO reach entirely
around the pipe and If sufficient
thickness to bring the bottoms of the
two pipes to the same level No
Joint shall be cemcntcd until the gas
kct Of the next two Joints in advance
are properly inserted, Special care
must be taken to IN with mortar the
annular space at the bottoms and
sides as well as at the tops Of the
joints. After such space has been
filled, the cement having been com.
Ipacted with a wooden or iron calkng
tool, neat finish shall be given to the
Joint by the further application Of
similar mortar to the face Of the hubs,
IN
Ieyea hcyCled surface from the eyteri
or Of the hub to the exterior of the
spigot al around. As soon as the CO.
Iment Of any joint has been compactei
the bell hole under the hub must be
carefully and compactly filled with
sand or fine earth SO as to hold the ok
terror mortar finish Of said Joints Sc.
lcuely in its place The re1ling shall
then be carried half way up the sides
Of the entire length of pipe with Sc.
lected earth and compacted with a
proper tamping tool. While the pipe
is being laid in each section between
manholes or other permanent open
lugs. light from the remote end OF the
section shall remain constantly in
view.
Section (. On both sides of the sew
er and as near the center line of each
lot or parcel of land of the width of
twenty-five (25) feet there shall be Y
branches, of six Co inches diameter,
aid r. turned to an angle of forty-fye
it5l degrees to receive the six co
Inch house connections hereinafter
provided for; and said house connec,
tons shall be securely closed at the
lot line with an earthenware cap set
in cement mortar except where the lot
IOWner or proprietor desires to connect
his house or drain pipes herewith at
once. The exact location of all Y
branches shall be carefully ascertained
by the city engineer of the city or some
other competent person. designated or
appointed by the city council before
the Conceament OF the said branches
by back filling, by accurate measure
ment from the center of the manhole
next below in the same line of pipe, so
|
preserved for future use; and no
bra lch shall be covered or concealed
before its exact location has been
noted and recorded
Section ). The sewer trench shall
be carefully filled, rammed and lamp
ed in uniform layers Of suitable earth
or other suitable materials of not eX.
ceeding twelve (l2) inches in thick
ness; ana in doing thc back
filling care must be taken tot
fiji in and compact the earth
around the body OF the sewer pipe be. |
fore beginning with the twelve Q2) |
inch layers which are to be rammed |
and tamped in the doing Of which /
neither the sewer pipe nor the line Of /
the sewer must be in anywise injured ,
or disturbed and the street surface |
above the sewer shall be made firm /
and solid and altogether suitable to
receive street paving whenever the
same shall be ordered
Section 6 The work shall he car
ried on and fully completed in sec
tons of not exceeding two hundred
t201l feet at a time and the back filing
must be finished complete up to with
in one hundred f1o0l feet of the com
pleted pipe laying; and If any part or
section is left uncomplcted it shall be
carefully and fully protected by prop |,
or barriers and at night time also by /,
suitable red lights
Manholes.
Section Z In the said sewer con |,
struction work there shall be cyiu-
1rical brick manholcs all alike one at
each street intersection and one in the
center Of each block and one at L
each end Uf the sewers. All Is
Of said manholes shall be built to S
he grade of the said street, and the =
bottom thereof shall be on a level with {
he bottom of the sewer inside. All Of
'aiG manholes shall be constructed as 6
ollows: The walls of the same shall s
'onsist of two (2) courses of hard II
burned brick laid fiat and in cement 7
Mortar, composed Of one "a part OF S
Portland cement and three go parts S
If clean sand They shall he of four Y