Rensselaer Republican, Volume 27, Number 43, Rensselaer, Jasper County, 2 July 1896 — New Safety Lock. [ARTICLE]

New Safety Lock.

The newest idea in locks is one without a dial and which Is opened by the use of the fingers and the sense of feeling or that of hearing. The action of a frame dropping into a number of corrugations and manipulated by the knob can be heard and felt, and It la by these sounds that the manipulator is guided in throwing back the lock. The knob is turned to the right until the pawl is heard to drop into the first corrugation; then a certain number of turns to the left, then to the right and to the left again, and finally a turn which draws back the bolt. The lock is capable of 360 combinations and the combination can be changed at any time.