The Jersey City news. (Jersey City [N.J.]) 1889-1906, 1898-01-11

fully the temper. sounaness and fitness Tor use
mems, when taken at random as aforesaid
from the finished product Of any heat or
melt to conform to the above Requirements
viii be sufficient cause for the rejection ot me
entire product Of such heat or melt
The sheets or plates shall be free from lam
ination and surface. defects. and be fully up
to the required gauge for thickness on ene
Rivet steel shall be soft and have a tensile
strength between the limits of 1000 and as.oooo
pounds per square inch, with an elastic i1m,'
Of not less than 10000 pounds per square men,
and with an elongation Of not less than -
per cent. in a test bar eight inches long Pc
tween measuring points and full diameter OF
rivet. and with a reduction of cross sectional
area at the point of fracture of not less tnan
80 per cent.
The material shall also be of such quality
as will stand bending double and fiat before
and after heating to a light yellow heat, ana
quenching in cold water, without sign OF irNc-
ture on the convex surface of the bend. Tne
quality of material. of rivet rods and subsequent
edges Of heads, Of properly heated and riven
rivets shall be free from checks or cracks. All
steel rivets not conforming to the above re-
Quirements will be rejected.
All riveting In the shop must be done with
hot steel rivets by steam, compressed ar Or
hydraulic machinery. exerting a slow pressure
and retaining 1t sufficiently to perfectly form
the rivet heads before the metal loses its req
color.
All rivets when driven must fit the holes
completely, and have heads OF such form ana
size as will be directed by the Engineer.
.N04% Dt dhtu 10 4ldfS hfS
the right heat to produce the best and most
solid work, and any rivet that may at any tiilie
been overheated, shall be cut out and replaced
at the contractors expense by enc which IS
sound and acceptable. All rivet heads mus.
be perfect in form and truly concentric 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 be OF
the quality described above. and they shall pc
driven In the best and most workmanlike man
ner in PRPrU QSffap Il All prnUiSiDnS herein con-
tanned relating to riveting done IN the snoP
shall also apply as far as practicable 70 rlvGts
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 MANI
facture OF the sheets or plates until the COIL
pleted pipe is dipped and coated.
AT the factory the plates must De un9er
cover at the pipe shops and must be kept unosr
roof and cover until ready for shipment ana m
no way exposed to the weather or to moisture.
In cases of accidental rueting the rust must
be removed from the plates before proceeding
with the manufacture of the pipe.
Where angles or curves occur in the ailgn.
ment and grade of the conduit. the plates must
be cut and punched to the required lines Tor
forming a slight oblique angle at the clrcuiaI
seams OF as many courses as may be needeo
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
openings for man-hoies, blow-efs and air
valves, and pieces involving any other KING OF 2,
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 than nVe-
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,
ETC.. will be cut and rivet holes punched in the
pipe shop and the riyeting 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
laps the seams shall be both Clipped ana
caulked.
During the manufacture of the pipe sample
lengths, to be selected 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.
der a pressure of 50 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
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 by dip-
ping twice in a bath of refined asphaltum neat
eu 10 d ltilI d L OI W ~ l. oiiNf
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 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
beNexercised not to injure the coating in han
ding the pipe. Whenever the coating IS IN
jured in transportation or by handling. as.
ph lf,-p, naipt oroapfoh1a tn the Engineer must
be Immediately applied to the injured portion.
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 ac-
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
delivery of water. All longitudinal seams are
There shall be suitable man-hoies located at
intervals of about one thousand feet on each
No pipe shall be covered in until the same
shall have passed inspection within and with
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-
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 appurtenanees for
measuring, regulating the pressure or and de-
livering the water.
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.
TUNNELS.
The sidewalks and arches OF all tunnels shall
consist Of brickwork sixteen inches in thick
ness where the tuEnelis in earth or very loose
rock. twelve inches where in intermediate
Portland cement mortar, and the entire space
between the sidewalks and the sides of the ex-
c~avation shall be filled with Rosendale cement
concrete up to the level of the top of the arch.
able material, carefully packed or rammed
So as to 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
Rosendale cement concrete, surfaced with a lay
er tw, inches thick of Portland cement NOR
far. Where the tunnel is in earth or unsound
rock a brick invert, sixteen inches thick, shall
be necessary, in order to secure firm founda-
ton, the invert shall be laid upon a bed OF