The Jersey City news. (Jersey City [N.J.]) 1889-1906, 1898-02-05

pounds per square inch. with an elastic limit
OF not less than 10000 pounds per square inch.
and with an eiongation Of not less than Is
per cent. in a test bar eight inches long pes
tween we measuring points and run aiam asctionsI
80 per cent.
The material shall also be of such quaiity
as will stand bending double and nat peIois
and after heating 10 a light yellow heat, anu
quenching in cosd water, without sign OF frac-
ture on the convex surface of the bend. Inc
quality Of material of rivet rods and supsequehl
manufactnre into rivets shall be such that the
edges of heads, of properly heated and rlVel
riyets shall be free frjn checks or cracks. Al
steel rivets not cor -erfning to the above re-
quirements will be rejected. 10
All riveting in the shop must be done Will
not steel rivets by steam. compressor 81
and retaining it sufficiently to perfectly form
the rivet heads before the metal loses ~ ieu
color. 80
All rivets when driven must fit the holes
completely, and have heads of such form ana
size as will be directed by the Engineer. ~
Care must be taken to have the rlVets ~
the right heat to produce the best anu iioss
solid work, and any rivet that may al any hn,e
or place be found defective or appear 10 nNNs
been overheated, shall be cut out ana replacea
at the contractors expense by enc Whicn -
sound and acceptable. All rivet heads must
pc perfect in form and truly concentrlc win
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, snal pe % y
the quality described above and they snail De
vi Nii III the DeSl duQ itlCSL -
ner in every respect. All provisions herein CON
tanned relating to riveting done IN the saop
driven in the field or along the line Of conduit
All plates and rivets must be free from lusl
and kept under cover from the time OF MANI anu
facture OF the sheets or plates unul the eom-
pleted pipe is dipped and coated. -
At the factory the plates must be unaer
cover at the pipe shops and must be Kept unoer
roof and cover until ready for shipment and IN
no way exposed to the weather or to molslure.
In cases of accidental rusting the rust must
be removed from the plates before pTOcttuiiaS
with the manufacture of the pipe.
n,ent and n a arsss ~ . + sar aes oyieut he mates must
be cut and punched to the required lines Tor
forming a slight oblique angle at the clrcuias
to produce the given total DETECTION or cufVa-
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 contaihins
openings FOR nan1holes. bloW-ons n rird a Of
work, shall be manufactured IN
the best and most approved manner. An open
ings for man-holes, blow-ofs, air valves, elc.
must be provided with suitable re-inforcement
rings or plates, cut, punched and rolled to the
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 con-
duit,
Said rings must fit closely between the ex-
terror of the pipe and the fange of the cast
ings or forgings. and be held in place by the
rivets which pass through said hange and the
conduit.
Openings for man-holes, blow-offs. air valves,
elC., Will DC cut dIlQ TlNeI nOleS puICilGo III tAc
pipe shop and the riveting of the same zone
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 boaler
work., while for the necessary distance from az
laps the seams shall be both Clipped and
caulked.
During the manufacture of the pipe sample
lengths, to be selected by the Engineer as fire.
quentiy as he may deem necessary, shall be
tested before or after coating under a water
nrhSS11ra of two hundred mounds tn the square
inch, and shall be absolutely tight under that
pressure. If tested before the coating is ap-
piled the pipe must be thoroughly oiled Win
a coat of linseed oil.
The pipe when laid shall also be tested un-
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 tess shall be made at the
expense of the contractor, and he. shall furnish
ali the necessary appliances and labor for their
performance to the satisfaction of the Engineer.
The pipes are to be Thoroughly coated py olp-
ping twice in a bath of refined asphaltum neat
ed to a temperature of 800 degrees Fahernhelt.
The metal must reach the same temperature
as the bath at it's first dipping and may be
heated to this temperature before dipping. Inc
coating must be durable, smooth. glossy, hard'
tough, perfectly waterproof and strongly ad-
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-
tected by the coating. All possible care must
be exercised not to iEJure the ne eo oaatigg II IL in n
jured in transportation or by handing as
phaltum paint acceptable to the Engineer must
be Immediately applied to the injured portion;
Such paint must also be applied to all feid
rivets.
other processes Of coating or protecting the
pine 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
end of the next section toward the point OF
delivery of water. All longitudinal seams are
There Shall be suitable man-holes located at
intervals of about one thousand feet on each
No pipe shall be covered in until the same
ashan have passed inspection within and with
out and all defects have been remedied.
CONNECTIONS AT POINTS OF DELIVERY.
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
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 ap-
purtenanees, 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
eAfn Rdlt il stoP-N I'll l10 O4ldNll
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 appqrtenances.
-, ,.--o1 n orotec Of oil npra1c sl,ot1
\ consist of patchwork 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
c~avation shall he filed 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 to completely fill the space. Where the
tunnel is In rock, if the bottom consists of
soun? and solid rock, it may be leveleu up and
| srnod he'd and made uniform throughout with
| Rosendale cement concrete, surfaced with a lay
| tar. Where the tunnel is in earth or unsound
rock a brick invert, sixteen inches thick, shall
be laid at the bottom. If it shall
| he necessary, in order to secure firm founda-
lion 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
| from projections
IF iron castings are used for effluent pipe
man-holes. blow-offs, air-valves and other CON
necfions. the metal must be re1nelted in a Gu
pola or air furnace, ana must be of pig-iron,
without any admixture of cinder iron or other
inferior metal, and shall be of a strong tough
character, of an even grain, entirely free from
uncambined carbon when seen under the mi
croscope, and such as VIII pear satisfactory
9sba iron for the castings shall have a ten