The Bourbon news. [volume] (Paris, Ky.) 1895-19??, 1914-07-07


densed steam, sap and other liquid
matter shall be drawn from the recep-
tacle by means of valves. At the
completion of the steaming process
all condensed steam and other fluid
matter shall be blown from the cylin-
der through an opening in its bottom,
and the stream shall be caused to pass
out through an opening in the top.
10. The draining and exhaust
valves of the cylinder shall then be
closed and a vacuum pump shall i'm
mediately produce, as quickly as pos
sible, vacuum of at least "a inches
and as much more as may be neces-
sary, and maintained in the cylinder
until moisture and gases cease to
come from the cylinder. During this
process the wood blocks within the
cylinder shall be kept hot by means
of steam coils within it.
IL. Immediately thereafter and
while the vacuum exists, the creosote
oil at temperature between $50 de-
grees F. and 200 degrees F. shall be
run inc the cylinder and forced and
maintained under such pressure that
the wood blocks shall absorb and be
/
amount required by Section % above
The excess of creOsote oil in the cyl
inder shall then be withdrawn, the
blocks drained and prepared for ship
ment.
II. The blocks ready for use must
meet the indentation test pressure
made as follows: The blocks to be
tested are first dried at 100 degrees F.
during II hours. Then polished
steel die 1 inch square on it's lower
face, square edges, corners and per-
pendicular sides, is placed on dried
block firmly supported in a compress
sion testing machine. A pressure of
5000 pounds is applied, quickly and
maintained exactly one minute. The
die must not descend and indent the
block more than one-eighth of an inch.
The measurements are to be taken
from when the die is lightly pressed
against the block to the instant the
5000 pounds pressure has been ap-
piled one minute. The die is placed
anywhere within one-half ~ inch of
the edges of the block and so as to
compress lengthwise the wood fibres.
Is. The wood blocks shall be in
spected by the City Engineer at the
place of manufacture or on arrival in
the city where they are to be used or
when piled adjacent to the street to be
paved All blocks not in conformity
with the requirements of these Speci-
fications will be rejected and must be
removed from the locality of the pave
ment to be laid.
IA. The wood blocks are to be laid
upon the mortar bed Immediately aft
er the bed is ready to receive them.
The blocks are to be laid with close
joints and at right angles to the curbS
except otherwise directed by the City
Engineer, and in uniform course, and
so that all longitudinal joints shall
be covered by lap of at least three
60 inches. No closure or end blocks
shall be used which are less than
three 60 inches long. The paving
blocks shall be jointed up to the Car
tracks and rails as directed by the
City Engineer.
Is. The blocks shall be laid in
slight contact, and shall be properly
rolled or rammed to firm bearing
and uniform surface.
16. No rolling or ramming shall
be done within ten feet of the surface
where blocks are being laid. All
blocks which are broken, split, or
otherwise damaged or defective or
displaced shall be removed immedi-
placed with sound blocks.
16. After the blocks have, been
laid and properly rammed, their