AGAINST THE BURGLAR
Safety Device Invented By New Zealander. PROTECTION FOR JEWELLERS. LONDON, August 7. A New Zealander, slr. M. C. O'Brien, has invented a safety shutter to fit inside jewellers' show windows, to frustrate "smash and grab" raiders. The shutter descends so quickly, giving an alarm at the same time, that it will be impossible to extract any goods. It is not affected by vibration, but immediately the window has been struck a heavy blow a percussion shutter, which is attached to a glass tube, destroys a vacuum and this operates the mechanism of the. shutter.—(A. and N.Z. and (Sydney "Sun.")
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Bibliographic details
Auckland Star, Volume LVIII, Issue 185, 8 August 1927, Page 7
Word Count
102AGAINST THE BURGLAR Auckland Star, Volume LVIII, Issue 185, 8 August 1927, Page 7
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