The Jersey City news. (Jersey City [N.J.]) 1889-1906, 1898-02-08

pounds per square inch. with an elastic limit
Of not less than 10000 pounds per SQUARE inch,
ana Withsau Felorgation of not less tnan y
| per cent. III d test bar eight inches long be.
tween measuring points and full diameter 81 q
rivet, and with a reduction of cross .secti2nai
SO per cent?
The nsaterial shall also be of such quality
as viii stand bending double and nat pefors
and after heating to d light yellow heat, ana
qu ,sa IN cold water: without sign Of fr rae
quality Of material of rivet rods and subsequent
manufacture into rivets shall be such that the
rivets shall be free from checks or cracks. All
steel rivets not conforming to the above re-
quirenaents will be rejected.
All ~riveting in the shop must be dqne VIII
not steel riyets by steam, 4compressed ~ ~
a nsa retsin miae1 n sat,s s ger = a p s,a T form
the rivet heads before the metal loses lts reu
All rivets when driven must ut the holes
completely. and have heads Of such form aha
size as will be directed by the Engineer. :.
Care must be taken to have the rivets at
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 nasS
been overheated, shall be cut out and replaced
at the contractors expense by one when N
sound and acceptable. All rivet heads must
be perfect in form and truly concentrlc Witn
the shank or shaft. y,
The rivets used to connect the cylinders N
the field, for attaching castings, etc, 70 the
pipe, and for all work in the shop, shall pc q
the quality described above, and they shall pc
driven IN the best and most workmanihe ~
ner n every respect. All provisions herein COZ
tanned relating to riveting done IN the snop
shall also apply as far as practicable 70 rlyets
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-
iacture OF the sheets or plates until tne COIN
pleted pipe is dipped and coated.
At the factory the plates must be unoef
cover at the pipe shops and must be kept naosa
roof and cover until ready for shipment and IN
no way exposed to the weather or to moisture;
In cases Of accidental rusting the rust must
pc removed from the plates before proceeding
with the manufacture of the pipe.
Where angles or curves occur in the allgn-
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 eurea-
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-holes, blow-offs and AR
valves, and pieces involving any other kind~of
boiler-makers work, shall be manufactured in
che 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-
SlXteenthS of an inch in thickness, ana mace
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 fange and the
Openings for man-holes, blow-offs, air valves,
etc., will be cut and rivet holes punched in the
pipe shop and the rfveting 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 worklnanlike manner for first class boiler
work, while for the necessary distance from all
laps, the seams shall be both Clipped and
caulked.
During the manufacture of the pipe sample
lengths, to be selected by the Engineer as IRE.
quently as he may deem necessary, shall pc
tested before or after coating under a water
pressure of two hundred pounds to the square
inch, and shall be absolutely tight under tnal
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 UNI
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 thar
pressure. All such tests shalk 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 twice in a bath Of refined asphaitIm neal
The metal must reach the same temperature
as the bath at its first dipping and may pc
heated to this temperature before dipping. me
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.
be exercised not to injure the coating IN nan
ding the pipe. Whenever the coating is in
1urGd- IN transportation VI n.y. -
phaltum paint acceptable to the Engineer must
be Immediately applied to the injured portion;
Such paint must also he applied to all neld
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 rlveted joint to be inserted within the
end of the next section toward the point Of
delivery of water. All longitudinal seams are
to be double riveted.
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
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
must be approved by the Engineer and the
work must be performed under his supervision
and to his entire satisfaction.
G~ATEHOUSES.
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
low 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 l1ndQe lot Sueus COfluecliDu,I dlSO DIT
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 Beilevilie 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
pointsf of delivery with the intake or intakes
Of the eonduits, and equipped with all neces-
sary instruments and appnrtenances.
The idewalls and arches of all tunnels shall
consist of brickwork sixteen inches in thick
ness where the tunnel is in earth or very loose
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-
c~ayation shall be filled with Rosendaie cement
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
sound and solid, rock. it may be leyeled up and
smoothed and made uniform throughout with
Rosendale cement oncrete,-surface with a lay
er two inches thick of Portland cement NOR
far. Where the tunnel is in earth or unsound
rock n brick invert, sixteen inches thick, shall
be laid at the bottom. If it shall
he necessary. in order to secure firm foun8a-
ton. 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. 4 IRON.
II iron castings are used for effluent pipe
man-holes. blow-offs, air-yalves and other con-
nections, the metal must be remelted in a cu-
nola or air furnace. ard must be of pig-iron.
without any admixtlre of cinder iron or other
interior metal, and shall be of a strong tough
character, Of an even grain, entirely free from
uneombined carbon when seen under the mi-
croscope, and such as will bear satisfactory
drilling and cutting.
The iron for the castings shall have a ten