Harrisburg telegraph. [volume] (Harrisburg, Pa.) 1879-1948, 1915-01-01
Stationary Steam Engines

111-12.5.-The word (should) where
used is to be understood as advisory
and (shalD as mandatory.
BY stationary steam engine is
meant an engine normally in one place
and used regularly for furnishing mo-
tive power farm and sawmill porta-
BILE engines, portable hosting engines,
pumps used by contractors are not
classed as stationary engines.
Note: These standards are to be
considered as also applicable to gas
engines, pump engines and air COM
pressors, il their construction is such
as to bring them within the scope OF
these requirements.
Ample notice should be given before
machinery is started by the use or an
efficient alarm or signal.
All steam, gas and hot air pumping
engines and air compressors shall nave
all exposed collars, set screws, shafts.
couplings, clutches, keys, pulleys,
gears, fly wheels,N and belts guarded as
specified in Volume /, No. |, for the
Transmission of Power by the Indus
trial Board, unless other regulations
have been approved for special cases.
HIP. 2.51-Automati Stops.-it is
recommended that an approved type
of automatic engine stop, with speed
limit device, be put on all stationary
engines of more than 500 horsepower.
No live steam connections should be
made to the receiver of a compound
engine without reducing valve, set so
that the pressure will be well within
the safe working pressure of the re-
ceiver and of the low pressure cylin-
der.
Such receiver shall be equipped with
one or more safety relief valves Of
ample capacity, adjusted to a pressure
we'll within the safe working pressure
of the receiver and of the low pressure
cylinder. These valves shall be pro-
vided with facilities for testing, such
as a hand lever.
Jet condensers shall be provided
with vacuum breakers to prevent
water from entering the engine cylin-
ders. Steam traps used to discharge
water from steam separators shall be
so installed that their operation Will
be evident.
Each engine shall be equipped with
an efficient governor which VIII al
all times automatically control the
speed of the engine under varied loads,
except where the load itself acts as
an efficient governor All belts or
rope driven governors shall be
equipped with a device for stopping
the engine in case the belt or rope
should break.
Valve gear shall be so arranged, or
other provisions shall be made, that
| in the event of the load being removed
the engine will stop If the governor
would fail to act. "a broken belt stop
| will be considered sufficient for slide
or four-valve engines).
Positive means shall be provided for
blocking vertical and large horizontal
engines, compressors and pumps dur
ing adjustments and repairs.
| A safe method should be provided
| for turning over engines by hand.
Stationary stairs or iron ladders
shall be provided for access to sucf
emergency valves as cannot be op-
Grated from the floor or other accessi-
BILE place.
Platforms and walks on engines
shall have standard ratings and toe
guards. This applies also to the en-
gine bed alongside of the connecting
| rod or crosshead, when it is used as G
/, footwalk.
Provisions should be made where
practicable for oiling all engine bear
ings, journals, accentrics, crank pins
etc, from outside the guard ratings
All power transmission equipmen
should be given careful and Thorough
inspection at frequent and regular in
tervals. and complete records kept O.
such inspections.
! JOHN PRICE JACKSON,
Chairman.
GEORGE S. COMSTOCK,
! JAMES c. CRONIN,
| JOHN P. WOOD,
MRS. SAMUEL SIGMPLE,
/ Industrial Board.