Tear Gas Gun on Wrist Is Fired by Finger Ring Trigger (Dec, 1932)

Tear Gas Gun on Wrist Is Fired by Finger Ring Trigger
Shot by a trigger worn as a finger ring, a wrist gun that belches out clouds of tear gas has been designed for the protection of clerks, cash-iers and payroll messengers. The little gun, with its muzzle pointing forward, is strapped to the wrist where it is hidden by the coat sleeve. A thread of flesh-colored catgut, invisible at a glance, connects a ring worn on the second finger with a trip that releases the gas. The hand can be moved about freely, but when the wrist is bent suddenly at a sharp angle, the gas is discharged. To protect the wearer’s arm from being burned by the gas, the skin under the muzzle of the gun is covered by a wide band of leather. A retired Chicago, 111., policeman is the inventor of the new anti-holdup gun.

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3. Pipe Is Effective Tear Gas Gun (Mar, 1933)
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5. Amazing Tear Gas Pencil (Mar, 1962)