The Jersey City news. (Jersey City [N.J.]) 1889-1906, 1898-02-11

pounds per square inch. with an elastic limit
and with an eiongation Of not less than q
per cent. III . test bar eight inches long be.
tween measuring points and full diameter ef
flNet, and With q reduction of cross sectional
area az the point OF fracture OF not less thah
The material shall also be of such quality
as VIII stand bending double and fiat before
ana after heating TO Al light yellow neat anu
queicnlnB. In cold water, without sign o. I.ac-
ture on the convex ~slrface Of the bend. The
quaiity of material of rivet rods and SUBSEQUENT
nanufaeture into rivets shall be such that tne
riyets shall be free from checks or cracks. All
steel rlyets not cor. orming to the above re-
quirements will be rejected.
All fivetinS In the shop must be done Win
not steel rivets by steam, compressed ar OF
and retaining it sufficiently to perfectly FORM
the rivet heads before the metal loses its req
All rivets when driven must fit the holes
completely, and have heads of such form and
size as will be directed by the Engineer.
the right heat to produce the best and most
sohd work, and any rivet that may at any Tine
or place be found defective or appear 70 nave
been overheated, shall be cut out and replaced
AZ me contractors. expense by one wnlcn -
so ana acceptable. All rivet neauS n,ish
pc perfect in form and truly concentrlc with
the shank or shaft.
The rivets used to connect the cylinders IN
the field. for attaching castings, etc. TO the
Pipe, and for all work in the shop. shall pc OF
the quality described above. and they shall pc
driven in the best and most ~workmanllke man
ner IN every respect. All provisions herein con-
tanned relating to riveting done in the shop
driven in the field or along the line of conduit.
AL plates and rivets must be free from rust
and kept under cover from the time Of manu-
pieted pipe is dipped and coated.
At the factory the plates must be under
roof and cover until ready for shipment and in
no way exposed to the weather or to molsture.
IN cases of accidental rusting the rust must
be removed from the plates before proceeding
Win the manufacture of the pipe.
Mnere angles or curves occur IN the align.
ment and grade of the conduit, the plates must
be cut and punched to the required lines for
forming a slight oblique angle at the circular
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-
dult, such as closing pieces, sections containing
openings for man-holes,. blow-offs and ar
valves, and pieces involving any other kind of
work, shall be manufactured IN
the best and most approved manner. All open
ings for man-holes. blow-offs, air valves, etc,
must be provided with suitable reinforcement
rings or plates, cut, punched and rolled to the
proper form in each case, not less thdn nVe-
sixteenths of an inch in thickness, and made
duit.
Said rings must fit closely between the ex-
terror of the pipe and the fiange of the cast
tngs or forgings, and be held in place by the
rivets which pass through said fange 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 riveting Of the same done
in the shop.
All riveted seams and joints of every descrip-
ton shall be thoroughly caulked, both on the
inside and outside of the pipe, in the best and
most workmanlike manner for first class boiler
WORK, while for the necessary distance from all
caulked.
During the manufacture of the pipe sample
lengths, to be seleyeed 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 linseed oil.
The pipe when laid shall also be tested I'M
der a pressure of so per cent. greater than that
to which it will be subjected in normal oper-
alton, and shall be absolutely tight under that
pressure. All such tests shall be made at the
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 twice in a bath of refined asphaltum heat
ed to a temperature of 800 degrees Fahernheit.
The metal must reach the same temperature
as the bath at it's first dipping and may be
heated to this temperature before dipping. The
coating must be durable, smooth. glossy, hard.
tough, perfectly waterproof and strongly adj
hesive to the metal, and must show no ten
dency to flow when exposed to the sun in sum
mer or become so brittle as to scale in winter.
All pipe must be thoroughly covered and pro
elected by the coating. All possible care must
be exercised not to injure the coating in han
jured in transportation or by handling, as
phaltum paint acceptable to the Engineer must
be 11lllleulalely appi-2u TO the lHJuTeu pUItiOli.
Such paint must also be applied to all field
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 riyeted joint to be inserted within the
delivery of water. All longitudinal seams are
to be double riveted.
Tlo,o .lcIi ~ e,,;+obla rpap-boIac. 1oou+ad at
intervals of about one thousand feet on each
pipe.
shall have passed inspection within and with
cut and all defects have been remedied.
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
and substantial manner. Plans for this work
must be approved by the Engineer and the
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
flow 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, shall be built
at the points of delivery at Belleville and Ber-
gen Reservoirs, with proper appurtenances for
measuring, regulating the pressure of and de-
livering the water. '
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 appurtenances.
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
between the sidewalks and the sides of the ex-
cavation shall be filled with Rosendale cement
Above this the space. must be filed with suit
able MATERIAL, carefully packed or rarnmed
SO as to completely fill the space. Where the
tunnel is in rock, II the bottom consists of
smoothed and made uniform throughout with
Rosendale cement concrete, surfaced with a lay
er two inches thick OF Portland cement NOR
tar. Where the tunnel is in earth or unsound
rock a brick invert, sixteen inches thick, shall
b. laid at the bottom. If it shall
be necessary, in order to secure firm founda-
concrete. Care shall be taken to leave the in
terror surface of the tunnel smooth and free
CAST IRON.
IF ;ron castings are used for effluent nine
man-holes. blow-offs, air-yalves and other CON
nections. the metal must be remelted in a Gu
pola or air furnace, and must be of pig-iron,
without any admixture Of cinder iron or other
interior metal, and shall be OF a strong tough
character, of an even grain, entirely free from
~uncombsned carbon when seen under the mi
croscope, and such as VIII pear satisfactory
drilling and cutting
The iron for the castings shall have a ten
sile strength Of at least seventeen thousand
Il . Ni,ahoS long fyVn (1 inrbps u,ida 49,