A vibration isolator with an adjustable response. A vibration isolator for isolating a vibration source from a support structure include a base in engagement with the support structure and two supports connected to the base. At least one of the supports is slidably connected to the base. A flexible member having a generally elongate shape and an elongate length is supported by the two supports. The flexible member is attachable to the vibration source. Each support slidably engages the flexible member such that the flexible member can move relative to each support with the support that is slidably connected to the base being moveable along the elongate length of the flexible member.

A vibration isolator with an adjustable response. A vibration isolator for isolating a vibration source from a support structure include a base in engagement with the support structure and two supports connected to the base. At least one of the supports is slidably connected to the base. A flexible member having a generally elongate shape and an elongate length is supported by the two supports. The flexible member is attachable to the vibration source. Each support slidably engages the flexible member such that the flexible member can move relative to each support with the support that is slidably connected to the base being moveable along the elongate length of the flexible member.

The invention concerns a vibration damper (1) for rails (3) of a railway, resting on sleepers (4) which are situated at a certain distance (10) from one another, which damper (1) is designed to be fixed to said rails between two successive sleepers (4), whereby said damper (1) comprises at least one damping element (7) which must be placed against the rail flange (3a) and/or the top side of the rail foot (3b) of the rail (3), so that the far end (6) of the damping element (7) which is turned away from the rail (3) can freely vibrate.

1. A vibrating grinding machine with a container (1) for receiving the mass to be vibrated and a generator of vibrations (2), characterized in that the container (1) comprises at the bottom (3, 3') a discharge device (14) for the mass to be vibrated, on which is disposed a free internal jacket (10), the bottom being concave, convex or flat-shaped in the region of the discharge device.

Hydraulically-damped mounting, especially for supporting the engine of a motor vehicle, comprises a support spring (10) made of an elastically deformable material and supporting a mounting core (13) removably connected to a support arm (30), a working chamber (11) defined by the support spring and filled with a hydraulic fluid, and an equalization chamber (20) connected to the working chamber by an overflow channel (36) integrated in the support arm. Preferred Features: The mounting core has a passage (14) receiving the support arm.

A hydraulic striking device (1) includes a percussion piston (3) which reciprocates in an operating cylinder (2) and strikes a bit (4). The reciprocation is governed by a control valve (10) which is connected to the operating cylinder by a control conduit (27). A holding valve (30) in the control conduit has three connections (27a, 27b, 31): one with the control valve, one with the operating cylinder, and one with the return conduit (17). The connections (27a, 31) which are connected with the operating cylinder and with the control conduit are axially aligned and form the outlets of a hollow cavity (53) in which a preferably spherical movable valve body (54) is disposed, the cross-sectional area of the valve body being smaller than that of the cavity. The connection (27b) with the control valve opens radially into the cavity. If the valve body rests against the valve seat (55) which faces the return conduit, the axis of the connection (27b) passes through that half of the valve body which faces this valve seat. When the striking device operates, energy that is reflected from the bit to the percussion piston can be utilized for the following stroke and thus the total performance of the striking device is increased.

Accumulator with cell container(s) incorporates a hardenable casting compound which fixes the respective plate blocks in these containers so that their vibration is virtually prevented. The casting compound at least partially fills the space between the surface of the plate blocks and the pole bridges. Accumulator with one or more cell containers (16) incorporates a hardenable casting compound which fixes the respective plate blocks (15) in these containers in such a way that their vibration is virtually prevented. The casting compound at least partially fills the space between the surface of the plate blocks and the pole bridges (3a, 3b). Casting compound guide elements (7) serve to bound the plate block surfaces which are to be kept free from the casting compound. An Independent claim is also included for a method for producing such a vibration-proof accumulator.

The positioning system (50) attaches to the lifting wire (42) and comprises a main module (51) and a counter module (52), each provided with thrusters (56) to control the positioning of an attached load. An attached processing system takes input from an acoustic source and a sound velocity meter, to take account of acoustic rays bending as velocity changes with depth, on the apparatus to control the thrusters and position the load at its required underwater position : Independent claims are also included for the following: (a) A processing arrangement arranged to drive an apparatus for deploying an object to an underwater target position; ( A vessel provided with a processing arrangement arranged to drive an apparatus for deploying an object to an underwater target position; ( A method of driving a processing arrangement arranged to drive an apparatus for deploying an object to an underwater target position; ( A computer program for carrying out a method of driving a processing arrangement arranged to drive an apparatus for deploying an object to an underwater target position.

The positioning system (50) attaches to the lifting wire (42) and comprises a main module (51) and a counter module (52), each provided with thrusters (56) to control the positioning of an attached load. An attached processing system takes input from an acoustic source and a sound velocity meter, to take account of acoustic rays bending as velocity changes with depth, on the apparatus to control the thrusters and position the load at its required underwater position : Independent claims are also included for the following: (a) A processing arrangement arranged to drive an apparatus for deploying an object to an underwater target position; ( A vessel provided with a processing arrangement arranged to drive an apparatus for deploying an object to an underwater target position; ( A method of driving a processing arrangement arranged to drive an apparatus for deploying an object to an underwater target position; ( A computer program for carrying out a method of driving a processing arrangement arranged to drive an apparatus for deploying an object to an underwater target position.

A method for generating pulse width modulated control signal has the steps of providing a base carrier waveform, segmenting the base carrier waveform into a plurality of carrier waveforms, and providing at least one modulating signal. The first and second waveforms are compared to the at least one modulating signal to produce first and second comparator outputs, which are then mathematically combined to produce a pulse width modulated control signal.