THE ROOF-RAISING DEFENCE TO DEFEAT DIVE-BOMBERS
... THE ROOF- RAISING DEFENCE TO DEFEAT DIVE-BOMBERS. W. Heath Robinson's latest device to defeat the dive-bombers is a roof-raising story By means of an ingenious system of cogs balloons and other lifting machinery, he believes that it will be possible completely to upset the dive-bomber pilots' calculations as to their height from the ground. DRAWN BY W. HEATH ROBINSON. ...