Wirth Maschinen-und Bohrgerate-fabrik Gmbh

Other

Helmut Henschenmacher

Karl-Heinz Ecker

Edwin C Lewis, Ii

Siegfried Rutte

Hartmut Giernalczyk

The apparatus prevents undesirable rotation of screw bolts or the like provided at their ends with spanner working surfaces, in particular large screw bolts. Adapters are positioned individually on the said ends of the screw bolts and each has opposing surfaces adapted to the spanner working surfaces of a screw bolt. Carriers are pushed onto the adapters and each have internal teeth which can be brought into mesh with external teeth of the adapter. A holder mounts least two carriers with slight angular mobility, at a spacing corresponding to the axial interval between screw bolts.

Apparatus for securing screw bolts against rotation

A manipulator for parts which are to be moved during the opening and closing of an orifice provided with a cover comprises a driving device for moving a support along a guide parallel to the central axis of the orifice. A path-translating transmission is provided between the driving device and the support so that the stroke length of the driving device is shorter than the resultant path of the support.

Manipulator for cover closure members

Closure for openings in the housings or covers of piston pumps or the like to withstand an operating pressure which is in part an alternating load comprising an inner cover, a loadable and releasable pressure-applying member therefor, a loading device for the pressure-applying member, and for the purpose of satisfactorily meeting the requirements of practical operation without critically loading screw-threads, the loading device comprises a compression spring arranged between the pressure-applying member and a backing member, and a biassing device is provided for producing a releasing force acting in the direction opposite to that of the force of the compression spring to initially release the spring force on the pressure-applying member so that the backing member can be finally adjusted into a position to produce the desired compressive force in use.

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Munich, Georgia

Helmut Henschenmacher