HC Deb 30 October 1918 vol 110 c1434

asked the First Lord of the Admiralty whether his attention has been called to the device and model claimed by Mr. D. Marshall, of Cheltenham, to render a vessel secure against submarine attack by torpedo and to the offer of that gentleman to construct and fit to any appointed vessel the device for testing with uncharged and live torpedoes; and if he has taken any action?


Mr. Marshall was interviewed at the Admiralty on 24th June last, when the device was inspected. After full investigation by the Admiralty Departments concerned, the device was not considered to hold out any promise of practical development into an efficient torpedo defence for seagoing ships. In these circumstances Mr. Marshall was thanked, and informed that it was not proposed to proceed further with his device.