 Blamey was always interested in technical innovation , and was receptive to unorthodox ideas . He was instrumental in the adoption of the periscope rifle at Gallipoli , a device which he saw during an inspection of the front line . He arranged for the inventor , Lance Corporal W. C. B. Beech , to be seconded to division headquarters to develop the idea . Within a few days , the design was perfected and periscope rifles began to be used throughout the Australian trenches . 
