Automatic Lock Box for Milk Bottles
A mousetrap spring, provided with a suitable catch, was fitted into a box for milk bottles, and served to protect the milk bottle against theft by prowlers. The box was made large enough to hold several bottles, the empty ones in one portion and the filled bottles in another. The bottle is dropped through an opening in the locked end of the box and the spring forces up the catch. While this device may be tampered with, it guards effectively against the theft of bottles of milk, since most of those stolen are taken because they are easily accessible.—L. F. Head, Seattle, Wash.
¶The oxyacetylene flame may be used in cutting or welding steel cables, but such welds will not sustain the original safe load of the cable.