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Priority to DK100283ApriorityCriticalpatent/DK152063C/en
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Publication of DK100283ApublicationCriticalpatent/DK100283A/en
Publication of DK152063BpublicationCriticalpatent/DK152063B/en
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Publication of DK152063CpublicationCriticalpatent/DK152063C/en
Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof
(AREA)
Length Measuring Devices Characterised By Use Of Acoustic Means
(AREA)
Abstract
A process for regulating hammer force and shock time for drop hammers of the type which have a core 10 and a number of casings 12, 14, 16, 19 arranged concentrically around this. Between the core and the casings there are interspaces and the casings are alternately connected at the one and the other end commencing from the upper end of the core. Between the lower end of the core and the non-permanently connected ends for one or more casings, a shock-wave-transmitting connection 20 is produced for short-circuiting the path of the shock wave through the core and the casings. <IMAGE>
DK100283A1983-02-281983-02-28
PROCEDURE FOR REGULATING SHOCK POWER AND PERIOD OF A HAMMER
DK152063C
(en)
Method and a device for improving the discharge regime of an electric arc,and shock wave generator apparatus using such a method or such a device,in particular for hydraulic lithotrity