Textron Fastening Systems Limited

Gustav Klauke Gmbh

Angraj Kumarj Seewraj

Egbert Frenken

Wim Bouman

Aiden Robert Dear

Robert A Dear

Richard P King

A hydro-pneumatically operated repetition riveting tool, which tool includes a gripping means for releasably gripping an elongated mandrel at a position remote from the mandrel head, which gripping means comprises a housing with an internal taper, and a plurality of mandrel-gripping jaws which are urged into contact with the mandrel by means of the internal taper; hydraulic retraction means for retracting the mandrel, thereby to pull the head of the mandrel through a rivet on the mandrel and adjacent the head, thereby to place the rivet; return means for returning the mandrel forwardly again after placing a rivet; and rivet feeding means for feeding rivets forwardly towards the mandrel head; in which the return means is pneumatically powered; and in which the housing of the gripping means comprises a first part and a second part, spring means for urging the first and second parts relatively apart from each other, and limiting means for limiting the movement apart of the first and second parts under the urging of the spring means.

Pneumatically-operated repetition riveting tool

A hand-held riveting tool is driven by a battery-powered electric motor, and comprises a hydraulically-actuated riveting head, and a reciprocating hydraulic pump driven by the electric motor. The tool includes a reservoir for hydraulic fluid, the hydraulic supply line from the pump to the riveting head being connected to the reservoir by a reservoir inlet valve which is normally open to allow hydraulic fluid to flow from the supply line into the reservoir. Operation of the tool-actuating trigger firstly closes the reservoir inlet valve, and then switches on the electric motor to operate the pump. Release of the tool-actuating trigger firstly switches off the electric motor to stop operation of the pump, and then opens the reservoir inlet valve. When the reservoir inlet valve is closed by operation of the trigger, it acts as a pressure-relief valve to relieve over-pressure of hydraulic fluid.

Riveting apparatus

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Herts, United Kingdom

Angraj Kumarj Seewraj