A.
One central hydraulic power system
(one 10 HP motor) operates all of the
eight (8) spouts on one track;
duplicate pump and motor is located on
the tank top as an emergency stand-by.
B.
The arrangement of one
accumulator in the operating system
and one fully charged to over 1000 psi
with check valve in the event of
electrical power failure allows for
emergency operation of all 8 spouts.
There will be sufficient power
available to raise all 8 spouts clear
of RR cars.
C.
The hydraulic system includes for the
tilt cylinders and telescoping
cylinders pilot operated check valves
at the rod end to prevent accidental
dropping of the spout should an
accident occur or any faulty hydraulic
line or hose failures. Check valves
prevent the operation of the tilt and
telescoping cylinders unless there is
pressure available in the system.
D.
Dust hood is designed large enough to
envelope the largest RR car hatch
opening.
E.
The spout movements rotating, tilting
and telescoping, can allow loading of
any combination of RR cars presently
used from 50 to 100 ton capacity.
Can be integrated into a computer
controlled weighing and RR Car System.
F.
If cars with similar hatch
configuration are coupled, only the
telescoping action is required for the
operator which normally can permit one
operator to spot all spouts over the
hatches in less than one minute.
G.
Hydraulic filters are included in the
suction line, high pressure line and
return line. In addition, the tank and
pump unit has a low oil level switch,
sight gauge, temperature switch,
magnetic trap and heating unit if
necessary.
H.
Pump unit is capable of 1500 psi but
is used at about 1000 psi, and
pressure reducing valves are set at
actual required levels of 300 to 600
psi. Hydraulic controls and fittings
are designed for 3000 psi.
J.
The size of the dust hood
eliminates accurate spotting of
railroad cars.
K.
The feature of one control station to
override the telescoping hydraulic
valve in the "RAISE"
position permits the simultaneous
lifting of all eight lower vertical
sections clear of the cars. An
electrical interlock and time delay
relay (by others) can prevent movement
of the cars (cut-out car puller
pushbutton) unless all spouts have
been raised after the weighing cycle
is completed. Gang lowering and gang
lifting is possible.
L.
Connections to various valves and
controls are color coded for the 3
actions of rotate, tilt and raise.
M.
Each spout can be independently
positioned.
N.
The speed of each of the three motions
can be regulated independent of one
another with a flow control valve
provided in the system and locked
setting to prevent the operator from
overspeed in rotating, tilt down and
lower.
O.
Initial setting of pressure reducing
valves prevent possible damages in the
event the operator fails to stop
during an obstruction or interference
of the spout movements.
P.
All articulating sections
are provided with sealing rubber
strips to minimize escape of dust. A
flexible rubber dust shroud between
upper fixed section and rotating
section will be provided to eliminate
an influence of any weighing bin.
Q.
All eight (8) weigh bin slide gates
can be opened simultaneously and based
on previous experience, a 100 ton car
can be loaded in about 70 seconds, or
as quickly as 30 seconds, depending on
the material flow characteristics.
R.
The pantograph feature of the
intermediate inclined section of the
spout always places the lower
telescoping sections vertically
regardless of the tilt angle.
