'Breguet's punch' for exploding mines

Londen W. Ladd, 1855

This device, known as ‘coup de poing’, was invented by Louis Breguet. It served for activating detonators of explosives at a distance. The apparatus consists of a powerful horse-shoe magnet with coils at the poles. An iron anchor can be suddenly taken away from the poles by punching the lever in front.. This causes a change in the magnetic field, which induces a high voltage current in the coils. The ‘poing de Breguet’ could blow up mines at a distance of several kilometers. Louis Breguet (1804-1883) ran a large instruments firm in Paris. As an inventor, he took out some eighty patents between 1830 and 1880. His main interest was in the practical applications of electricity. For instance, he was strongly involved in the development of electrical telegraphy and in the use of electricity in time keeping.

Administration name

Fysisch Kabinet


'Breguet's punch' for exploding mines

Translated title

'Breguet's punch' for exploding mines


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Object number

FK 0697


[{'content': 'W. LADD 11 & 12 BEAK STREET, REGENT STREET W.', 'type': 'signatuur'}]


W.M. Logeman

Reproduction reference

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