Protection from Fire and Thieves / Including the construction of locks, safes, strong-rooms, and fireproof buildings; burglary, and the means of preventing it; fire, its detection, prevention, and extinction; etc.

by George Hayter Chubb

Beyond the fact that its simplicity of construction enables it to be produced at a moderate cost, the chief advantages claimed for this particular safe are:—

1. The door being slightly recessed when shut, a wedge cannot be inserted with the same ease as if it were flush; and if it is inserted, the pressure is exerted against the point of greatest strength and away from the door.

2. The frame being a special T-iron section with a thickened corner, its strength is enormous, and the power necessary to bend it can hardly be applied but by machinery.

3. The bolts fasten behind this solid iron, in place of, as is usually the case, into the lining.

4. The edges of the outer plates are recessed into the frame, so that there is not an open joint.

5. The outer plates are fastened to the frame by a new screw rivet, which can neither be driven in nor taken out.