Drop hammer

The invention relates to a drop hammer rapping device comprising: a rotatable slightness shaft (6), which is held by at least two bearings; a unit (7) provided for rotating the shaft; a plurality of radial arms (9) which are rigidly connected with the shaft at a distance from each other, wherein eac...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	PARUCH VOLKER, JEKERLE JIRI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE ORHEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS HEAT EXCHANGE IN GENERAL HEATING LIGHTING MECHANICAL ENGINEERING WEAPONS
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