Littlejohn adaptorとは 意味・読み方・使い方

The Littlejohn adaptor was a device that could be added to the British QF 2 pounder (40 mm) anti-tank gun. It was used to extend the service life of the 2-pounder during the Second World War by converting it to squeeze bore operation. "Littlejohn" came from the literal anglicization of the name of Frantisek Janecek, the Czech designer and factory owner who had been working on the squeeze-bore principle in the 1930s and who had brought his know-how to Britain after he fled from the Nazi-occupied Czechoslovakia.