The Jersey City news. (Jersey City [N.J.]) 1889-1906, 1898-01-29

AIN w oil etpuEd tlun y Y iS17 .NHaf -
per cent. in q test bar eight inches long Pc
tween measuring points and full diameter q
riyet, and with a. reduction OF cross secet sns,
area at the point OF fracture or not less Khan
so per cent.
The material shall also be Of such quality
as will stand bending double and nat BEFORE
and after heating 10 a light yellow heat, anu
quenehing in cold water, without sign 81 lTmc
ture on the convex surface of the bend. me
quality of material of rivet rods and subsequent
manufacture into rivets shall be such that the
edges q heads, of properly heated ana rive n
rivets shall be free from checks or cracks. Al
steel rlyets not conforming to the above re-
~quirements will be rejected.
All rfyeting in the shop must be done WITH
hot steel rivets by steam, compressed ar OF
hydraulic machinery, exerting a slow pressuts
and retaining 1t sufficiently to per1eetly = "a
the rivet heads before the metal loses It's rea
color.
All rivets when driven must fit the holes
completely, and have heads of such form anu
size as will be directed by the Engineer. =.
Care must be taken to have the rlNets a.
the right heat to produce the best and most
solid work. and any rivet that may at any time
or place be found defective or appear 70 naes
peen overheated, shall be cut out ana IsplaoS 4.
at the contractors expense by one Whlcii 10
sound and acceptable. All rivet heads mus
ne perfect in form and truly concentr1c Wlln
the shank or shaft.
The rivets used to connect the cylinders IN
the field. for attaching castings, etc, 70 ING
PIPE, AND for all work in the shop, sha a,a ~ 10 10
the quality described above, and they snail pc
driven in the best and most workmanilke man
ner in every respect. All provisions herein con,
shall also apply as far as practicable to rivets
driven in the field or along the line of conduit.
All plates and rivets must be free from rust
and Kept under cover from the time Of manu-
facture of the sheets or plates until the COM
pieted pipe is dipped and coated.
AT the factory the plates must De unqer
cover at the pipe shops and must be kept unaer
roof and cover until ready for shipment ana IN
In cases of accidental rusting the rust must
be removed from the plates before proceeding
With the manufacture of the pipe; ran-
Where angles or curves occur in the ansh.
f1ent and grade of the conduit, the plates must
be- cut and punched to the required lines for
forming a slight oblique angle at the elrcuial
seams of as many courses as may be needed
to produce the given total DETECTION or curva-
ture in each locality. Curves shall In no case
exceed ten degrees of curvature.
All other special pieces required for the con-
duit, such as closing pieces, sections containing
valves, and pieces involving any other kind or
boiler-makers' work, shall be manufactured IN
ings for man-holes, blow-offs. air Wives, etc.,
must be provided with suitable enforcement
rings or plates, cut. punched and rolled 70 tne
proper form in each case not less than hve-
sixteenths of an inch in thickness, and made
of the same material as the plates for the eon-
duit.
Said rings must fit closely between the ex-
terror of the pipe and the hange- OF the cast
ings or forgings, and be held in place by the
riyets which pass through said hange and the
conduit.
Openings for man-holes, blow-offs. air valves.
ETC., will be cut and rivet holes punched in the
pipe shop and the riyeting of the same Gone
in the shop.
All r1VeIed seams and joints or every deScFlp-
ton shall be thoroughly caulked, both on the
inside and outside of the pipe, in the best and
nl2st workmanlike manner for first class polier Il
work., while for the necessary distance from all
laps the seams shall be both ehipped and
caulked.
During the manufacture of the pipe sample
lengths, to be seles Ted by the Engineer as fire.
quently as he may deem necessary, shall be
tested before or after coating under a water
pressure of two hundred pounds to the square
inch, and shall be absolutely tight under that
pressure If tested before the coating is APP
piled the pipe must be thoroughly oiled with
a coat of Iinseed oil.
The pipe when laid shall also be tested I'M
der a pressure OF so per cent. greater tnan tnat
alton, and shall be absolutely tight under that
pressure. All such tests shall be made at the
expense of the Contractor, and he shall furnish
all the necessary appliances and labor for their
performance to the satisfaction of the Engineer.
The pipes are to be Thoroughly coated by dip
ping vice in a bath of refined asphaltum heat
ed to a temperature of 800 degrees Fahrenheit.
The metal must reach the same temperature
as the bath at its first dipping and may pc
heated to this temperature before dipping. The
coating must be durable, smooth, glossy, hard,
hesive to the metal, and must show no ten
dency to flow when exposed to the sun in sum
nler or become so brittle as to scale in winter.
All pipe must be thoroughly covered and pro
tected by the coating. All possible care must
be exercised not to injure the coating IN nan
ding the pipe. Whenever the coating is in
juredN in Transportation or by handling, as
phaltum paint acceptable to the Engineer must
be Immediately applied to the injured portion;
SuCn paint u diSo NC oPp4ico W GIL "
rivets.
Other processes of coating or protecting the
pipe may be adopted, provided that they are
in all respects equal in efficiency to the as
phaltum coating herein specified and are ae-
ceptable to the Engineer.
The pipe shall be constructed with taper
joints, the end of each section at each trans
verse riveted Joint to be inserted within the
end of the next section toward the point OF
to be double riveted.
There shall be, suitable man-holes located at
intervals of about one Thousand feet on each
pipe.
No pipe shall be covered in until the same
shall have passed inspection within and with
out and all defects have been remedied.
CONNECTIONS AT POINTS OF
Proper connections must be made to enable
the contractor to deliver the water into Ber-
gen Reservoirs, also directly into the high and
low service pipe systems of the City. SUCH
connections shall be made in the most thorough
must be approved by the Engineer and the
work must be performed under his supervision
and to his entire satisfaction.
GATEHOUSES.
A gatehouse of brick or stone, with slate or
tile roof, possessing two separate water pas
sages, each provided with proper screens, to-
gether with all necessary gates or other APP
purtenances, must be placed to control the
fow from the reservoir supplying any steel pipe
or masonry conduit. Gatehouses of like mate
rial shall also be furnished at each point where
two parallel steel pipes are connected, or where
provision is made for such connection, also at
each gate or stop-valve on the main conduit.
Suitable gatehouses of stone masonry, with
slate or tile roofs, Of attractive architecture and
appropriate to their surroundings. snail be built
at the points of delivery at Belleville and Ber-
gen Reservoirs, with proper appurtenances for
measuring, regulating the pressure of and de-
iseiins - TELEPHONE.
A telephone line shall be built connecting the
points Of delivery with the intake or intakes
Of the conduits, and equipped with all neces-
sary instruments and appgrtenanees.
The sidewalks and arches of all tunnels shall
consist of ~brickwork, sixteen inches in thick
ness where the tunnel Is in earth or very loose
rock. twelve inches where in intermediate
rock. and eight inches in sound rock, laid in
Portland cement mortar, and the entire space
bet ween the sidewalks and the sides of the ex-
.cavation shall be filled with Rosendale cement
concrete up to the level of the top of the arch.
Above this the space must be filled with suit
able material, carefully packed or rammed
So as 10 completely fill the space. Where the
tunnel is in rock, if the bottom consists of
sound and solid rock, it may be leveled up and
smoothed and made uniform throughout with
er two inches thick of Portland cement NOR
tar. Where the tunnel is in earth or uasound
rock a brick invert, sixteen inches thick, shall
Be ,a lad at in to Order 0f to Secure Il firm It fon snall
tion. the invert shall be laid upon a bed of
concrete. Care shall be taken to leave the in
terror surface of the tunnel smooth and free
= CAST ron
If iron castings are used for effluent pipe
man-holes. blow-offs, air-valves and other con-
nections. the metal must be remelted in a Gu
nola or air furnace, and must be of pig-iron.
without any admixture Of cinder iron or other
character, Of an even grain, entirely free from
~uncombined carbon when seen under the mi
croscopc, and such as Will pear satisfactory
drilling and cutting.
The iron for the castings shall have a ten
sile strength of at least seventeen thousand
bounds to the square inch. Test bars, twenty
six l56l inches long, two ~ inches wide and
one a inch thick, placed fiatwise and hori-
zontal. upon Supports tWenty-Iour (2g inches