Fig. 3.—The generator, mounted on a frame, is clamped to 
the rear bumper of the vehicle with two steel-strap hanger 
brackets that hook over the top edge of the bumper. The curled 
end of the center clamp is hooked over the bottom edge of the 
bumper, and the threaded end of this clamp, which is inserted 
through a drilled hole in the rear piece of the mounting frame, 
is secured with a wing nut. 
o 
ampere, 110-volt toggle switch, which was installed in 
a second handy box equipped with a switch-type cover 
plate. The return wire from the switch to the recep- 
tacle was attached to the second, or free, terminal of 
the receptacle to complete the circuit. A second length 
of cable, about 8 feet, leading from the wiring trough 
for the floodlamps and terminating in a male plug to 
be inserted into the outlet receptacle, was used to com- 
plete the circuit to the lamps. The toggle switch con- 
trolled the floodlights. The. handy box with toggle 
switch was outfitted with clamps so that it could be 
attached either to the center of the dash or on the roof 
of the vehicle above the driver’s right shoulder. The 
switch was fitted with a 6-inch extension of semi- 
flexible rubber tubing so that it could be located easily 
and turned on or off with a flick of the hand. 
The hand-held spotlight used in this work was a 
Unity Model S6, 100,000 candle power, 12-volt auto- 
mobile searchlight. It was sometimes operated from 
the vehicle's cigarette lighter socket. Usually, however, 
a short electrical cable, terminating in a female recep- 
tacle, was run from the posts of the vehicle’s 12-volt 
battery, through the firewall, to the interior of the 
vehicle. The spotlight cable was then fitted with a suit- 
able male plug. The latter system offered the most 
trouble-free performance. 
The a-c lighting system with a bumper-mounted gen- 
erator has the advantage of being interchangeable 
among different vehicles, particularly those of similar 
make (Fig. | and 4). All equipment can be rigged and 
readied for operation by two men within 10 minutes. 
Fig. 4.—The crew of this nightlighting rig is cruising a grain-stubble field to locate roosting pheasants. 
