5. Operating the transfer signal holdup light
The specific operations of the elevator are
controlled by the console operator by pushbutton
An ultraviolet night-light is installed above the
switches on the remote control console.
console to illuminate the switch panel during night
operations. When not in use, the control console is
stowed within the console stowage box.
Remote Control Console
Elevator Drive Control System
The electrical system provides the controls and
signals necessary to operate the receiving unit from a
The elevator drive control system raises and lowers
remote control console. Figure 5-34 shows the control
the elevator. The elevator mechanism is supported by
console mounted on a pedestal near the receiving unit.
the kingpost. A chain hoist, located within the kingpost,
The control console is a portable aluminum box housing
is attached to the elevator and is driven by a bidirectional
with control switches and indicator lights installed. The
electric motor for elevator operation. The motor is
switches on the console are grouped by their control
mounted on the side of the kingpost near the base (fig.
function (fig. 5-35). The power switch is in the upper
5-34). The 5-horsepower motor operates on 440-volt
right-hand corner of the control console and connects
ac, three-phase, 60-hertz power at 1,800 rpm. It is a
and disconnects the 440-volt, ac ship's power supply to
watertight motor and drives the elevator through a worm
all the electrical components of the receiving unit. The
gear type of speed reducer. A solenoid-operated disk
main electrical operations of the receiving unit are as
brake, installed on top of the elevator drive motor,
follows:
performs fast action in stopping and starting the motor.
This permits the swift and accurate positioning required
1. Raising and lowering the elevator
by the system. The operator at the console can stop the
2. Opening and closing the elevator arms
elevator at any position along the kingpost.
3. Immobilizing the meeting carriage when
Electrical circuits provide the means to raise the
receiving and stowing the missile
elevator with the arms open and unloaded or with the
arms closed and loaded. These circuits also allow
4. Releasing the trolley latch
Figure 5-35.--Control console on a receiving ship.
5-53
