Gas-Engines and Producer-Gas Plants

as has reached the engine, the rubber bags will swell up and the anti-pulsator diaphragm will be forced out. The drain-cock of the gas-pipe is then opened. In order to ascertain

same fact. Sometimes a white flame may be produced by the ignition of the gas at the opening of the adjusting-sleeve. A blue or greenish flame is that which has the highest temperature and is the one which should, therefore, be obtained. About five or ten minutes are required to heat up the tube, owing to the material of which it is made. When the proper temperature has been at

rtain whether the valves drop upon their seats as they should. The stem

termine whether the current passes at the proper time on completing the circuit with the contact mounted on t

so likely to be deranged. Still, it is advisable, as in the case of ignition by induction-coils, to set in position the device which retards the produ

haft. The starting position corresponds with the explosion cycle and is generally at an angle of 40 to 60 degrees formed by the crank above the horizontal and toward the rear of the engine. T

all motors. Each system, however, necessitates peculiar precautions,

is cam the fly-wheel can be turned several times without the necessity of overcoming the resistance due to complete compression.

ppliance is composed, the directions furnished by the manufacturer must be followed. Particularly is this true of automatic starters comp

back firing toward the pump should be made the subject of careful investigation. Otherw

ld be taken in starting an engine, if a first attempt has failed, in order to evacuate imperfect mixtures that may be left in the cylinder. Before this test is made, the gas-cock should, of course, be c

by placing the foot upon the spokes. All that should be d

normally for a time, the cocks of the water circulation system should be manipulated in order to adjust the supply of water to the work performed by the engine. In other words the cylinder should be kept hot, but not burning, as previously

ps to be taken in stopping t

ven by the engine,-a practice which

ing-pulley of the engine

rder to prevent the escape of gas and the useless stretchin

f cam as the motor slows down, in order to

the gas-adm

f free flowing lubricators, and lif

brushes, the precaution should be taken of lifting the brushes before the engine is

ooling-water cock if

either by draining the jacket entirely, or by arranging a gas jet or a burner beneath the cylinder for the purpose of ca