Abstract: The invention relates to an elastomeric bearing system capable of sustaining a high compressive load, thus allowing a pivot movement around an axis perpendicular to said load and adapted, in particular, to connect the blades of a helicopter rotor to a rotor hub. Such a bearing system comprises a first and a second elastomeric bearing element fixed at the opposite ends of a tie bar. Said first elastomeric bearing element comprises a rigid external housing having an internal truncated-tapered surface with its minor basis directed inwardly, a rigid internal housing having an external truncated-tapered surface with its minor basis directed inwardly, and a resilient body between said internal and external truncated-tapered surfaces.

Abstract: An apparatus for counteracting vibrations includes a housing for attachment to a vibrating member. First and second bodies are connected to the housing by first and second springs, respectively, with a combined stiffness which defines a resonant frequency at which the first and second bodies oscillate with respect to the housing. Each of the first and second springs include a plurality of rods fixedly connected between a pair of rings. A lever engages the first and second bodies to vary a spacing between those bodies when force from an actuator is applied to the lever. The lever action alters the stiffness of the first and second springs which varies the resonant frequency of the vibration absorber.

Abstract: A wire working machine and system are described with a working platform on which a rotatable mount with individually controllable wire working tool actuators is provided. The rotatable mount surrounds a workzone in which wire is worked with the tool mount being rotatable about the workzone to provide center line working of the wire. The rotatable mount is formed with removable segments each of which can support a tool actuator but can be removed to enlarge the workzone. The workzone extends through the working platform to enable a second rotatable mount located on the opposite side to form workpieces passed through the workzone. The working platform is movable in x and y directions to align with a wire preforming machine to form a wire working system with great versatility, accuracy and improved productivity.

Abstract: A wire working machine and system are described with a working platform on which a rotatable mount with individually controllable wire working tool actuators is provided. The rotatable mount surrounds a workzone in which wire is worked with the tool mount being rotatable about the workzone to provide center line working of the wire. The rotatable mount is formed with removable segments each of which can support a tool actuator but can be removed to enlarge the workzone. The workzone extends through the working platform to enable a second rotatable mount located on the opposite side to form workpieces passed through the workzone. The working platform is movable in x and y directions to align with a wire preforming machine to form a wire working system with great versatility, accuracy and improved productivity.

Abstract: The invention relates to the art field of rotary printing machines, and concerns a doctor blade clamp device in the form of a bar with a longitudinal chase that accommodates a pressure plate; the plate is urged against the blade by pressure applied through a reservoir embodied as a hollow flexible sheath, likewise accommodated by the chase, which connects with a supply of pressurized fluid and is made to expand by the operation of a suitable valve.