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Placed in the public domain from the VANGARD SCIENCES archives on
September 8, 1989. Our mailing address is PO BOX 1031, Mesquite, TX
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The Vortex Gun
Dr. Phillips Thomas, research engineer of the Westinghouse Electric &
Manufacturing Company, picked up what appeared to be a small copper and
brass drum with an aperture some two inches in diameter in its head. By
means of a tubular peep sight affixed to the top of the drum, he aimed
the aperture at one of a row of lighted candles about ten feet away, and
then tapped the back of the drum with a rubber hammer.
Instantly the candle was extinguished. He repeated the performance
half a dozen times, and each time the striking of the metal drum was
followed by the extinguishing of a candle. He pointed the aperture at a
gong, tapped the drum, and the gong rang. In each case, it was as
though an unseen projectile had been fired from the strange device.
These seemingly miraculous feats were accomplished by an invisible
ring of air, a smoke ring without the smoke, shot from the aperture by
the force with which Dr. Thomas struck the back of the drum. Called a
VORTEX GUN (remember the WHIRLWIND CANNONS of the Germans during
WWII...Vangard), and designed on the basis of elaborate mathematical
calculations by Westhinghouse scientists, this device embodies the first
practical application of the well-known principle of vortex motion.
Good examples of this motion are the common smoke ring which almost
all smokers can blow, and the funnel-shaped twister cloud familiar to
anyone who has lived in the tornado and cyclone belts of the Middle
West.
The twister, however, is ONLY HALF OF A VORTEX, it moves only if a
wind is blowing, and always travels at right angles to the ground.
A smoke ring, which is a true VORTEX RING, will move in any
direction, according to the initial impulse, and owing to the vortex
motion, the smoke will remain in the ring as long as it is moving.
THE MORE RAPID THE MOTION, THE FARTHER THE RING WILL GO BEFORE
BREAKING UP.
The rings or miniature whirlwinds shot from the vortex gun conform to
the behavior pattern of the smoke ring as blown from the mouth. Their
size and velocity, and the distance traveled, depend upon the dimensions
of the gun and the force with which it is struck. They are always
invisible unless smoke or some other visible substance is put into the
gun.
Westhinghouse engineers have constructed experimental vortex guns in
two sizes. The hand model, demonstrated by Dr. Thomas as part of the
equipment of a traveling laboratory with which he has been touring the
country, is about eight inches in diameter.
It shoots a vortex ring with a diameter of from two to three inches.
which travels at a speed of 20 feet per second. The ring carries so
much force that the impact can be felt at about 25 feet.
Popular Science - August - 1942