The Jersey City news. (Jersey City [N.J.]) 1889-1906, 1898-01-22

nation and surface defectS, ana De ku1y w
g ease sas required gauge ff thickness q ~
Rivet steel shah be soft and have 4 tensile dde
strength between the limits OF $4,000 and osso9y
pounds per square inch, with an elastic limit
Of not less than $4,000 pounds per SQUARE men
per cent. in a test bar eight inches long be-
tween measuring points and fun diameasr q
area at the point of fracture OF not Tess thah
30 per cent. 4.
The material shall also be of such quality
as will stand bending double and nat peiors
and after heating 10 a light yellow neas, a az
ture on the convex surface OF the bend. The
quaIty OF material of rivet rods and supsequehe
edges of heads, OF properly heated and riven
rivets shall be free from checks or cracks. All
steel ffyets not conforming to the anoVe r~-
All riveting in the shop must be done with
hot steel rivets by steam. compressed an oe
hydraulic machinery, exerting a slow pressuIe
and retaining it sufficiently to perfectly FORM
the rivet heads before the metal loses IT'S reu
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 -
Care must be taken to have the riyets at
the right heat to produce the best and ms
90 o9' n,s werk r. !, and any rivet saae : may linear ! TO have
been overheated, shall be cut out and repiaceu
So sound aas a GontI aeeeptaei expe an r ~ che heads ai's must
be perfect in form and truly concentric WIN
the shank or shaft.
The rivets used to connect the cylinders IN
the field; for attaching castings, etc.. 70 ens :
pipe, and for all work in the shop, shall pc OF
the quality described above, and they shall De
driven in the best and most worknnanlke maj
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 conoult.
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
pfeted p1pe is dipped and coated.
At the factory the plates must be unaer
cover at the pipe shops and must be kept unaer
root and cover until ready for shipment ana IN
no WAN RXrnEGd I n thA NTanthnTg or L O c.
In cases of accidental rusting the Just mus
be removed from the plates before proceeding
Where angles or curves occur in the align
nlent and grade of the conduit, the plates must
forming a slight oblique angle at the circular
seams OF as many courses as may be needed
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-offs and ar
hoiler-makers' work, shah be manufactured in
the best and most approved manner. All open
ings for man.holes. biew-offs, air valves. cue,
rings or plates, cut. punched and rolled to the
proper form in each case, net less than nvea
of the same material as the plates for the con-
Said rings must ht 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 mango ana the
conduit.
Openings for man-holes, ~blow-offs. air valves,
pipe shop and the riveting of the same done
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
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.
quently. as he may deem necessary, shall be
pressure of two hundred pounds to 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 with
a coat of linseed oil.
The pipe when laid shall also be tested un-
to which it will be subjected in normal oper-
alton, and shall be absolutely tight under that
pressure. An such tess 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 twice in a bath H. of refined asphaltum neat
ea 70 4 temperature OF syo oegrees = emnar TIRE
as the bath at its first dipping and may be
heated to this temperature before dipping, me
coating must be durable, smooth, glossy, hard,
tough, perfectly waterproof and strongly ad-
hesiye 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 injure the coating in han
ding the pipe. Whenever the coating IS IN
phaltum paint acceptable to the Engineer must
be Immediately applied to the injured portion:
Il Such paint must also be applied to all held
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
phaitum coating herein. specified and are &C.
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
| daIivarv of water. All longitudinal seams are
There shah 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
cut and all defects have been remed1ed.
CONNECTIONS AT POINTS OF DELIVERY.
the contractor to deliver the water into Ber-
gen Reservoirs. also directly into the high and
connections shall be made in the most thorough
and substantial manner. Plans for this work
work must Sc 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 ap.
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
L Gacn gate Y II StOP-talNC ot LIE ID II
Suitable gatehouses of stone masonry, with
| slate or tile roofs, of attractive architecture and
appropriate to their surroundings, shall be built
al the points Of delivery at Belleville and Ber-
gen Reservoirs, with proper appurtenanees for
measuring, regulating the pressure of and de-
eiiA TELEPHONE.
A telephone line shall be built connecting the
noints of delivery with the intake or intakes
Of the conduits, and equipped with all neces-
sary instruments ana ma apPqrssnanees.
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-
oayation shall In filed with Rosendale cement
concrete up to the level of the top of the arch.
Above this the space must be filled with suit
SO as to completely fill the space. Where the
funnel is in rock, if the bottom consists of
sound and solid rock, it may be leyeled up and
smoothed and made uniform throughout with
or two inches thick of Portland cement NOR
tar. Where the tunnel is in earth or unsound
rock a brick inyert, sixteen inches thick, shall
be laid at the bottom. If it shall
be necessary, In order to secure firm founda-
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 CAST IRON.
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
pola or air furnace, and must, be of pig-iron,
without any adnlixture of einder iron or other
inferior metal, and shall be of a strong tough
character, of an even grain, entirely free from
uncornbined carbon when seen under the nil
a,asoa,o and kuch as will hear saficfactopv