An apparatus includes an upper member, a lower member disposed beneath the upper member, and a spring disposed between the upper member and the lower member. The upper member has a pin extending downward therefrom. The lower member has a seat configured to receive a free end of the pin. The spring surrounds the pin, and has a free length that is less than the length of the pin. In an unloaded state, the free end of the pin contacts the seat and the spring applies a compressive force to prevent relative lateral movement between the upper member and the lower member. When the lower member carries a load in a loaded state, the load applies a tensile force to the spring that forms a gap between the free end of the pin and the seat, which allows relative lateral movement between the upper member and the lower member.

A nanoscale positioning system for positioning a positionable component includes a motion platform including a first end, a second end, a shuttle positioned between the first end and the second end and configured to support the positionable component, a flexure member, and a fluid passage extending through the flexure member from the first end to the second end of the motion platform, and a pressure controller coupled to the motion platform and fluidically connected to the fluid passage, wherein the pressure controller is configured to selectably provide a fluid pressure in the fluid passage to flex the flexure member whereby the shuttle is displaced along a motion axis of the motion platform.

An electronic device can include a motor that rotates a shaft that is coupled to a gear. A belt or a chain can be placed in contract with the gear and other rotational devices. For optimum performance, the chain or chain should be adjusted to an optimum tension. The tension can be adjusted by moving the motor and securing the motor in a position the provided the optimum tension. Alternatively, the motor can be in a fixed rigid position and an idler pulley in contact with the belt or chain can be positioned to provide the optimum tension.

An exercise system including a tower and a translatable and rotatable display is disclosed. The tower is a free-standing unit and includes a mast that supports the display at a sufficient height or elevation, for example above a front panel of the system's housing. A carriage assembly couples the display to the mast to enable translation of the display between two positions, and the display mount is further configured to enable rotation of the display between a portrait orientation and an landscape orientation when the display is in the second position. In some embodiments, rotation of the display is substantially inhibited by the system's housing, for example the front panel, when the display is in the first position.

One variation of the tile display includes a set of tile assemblies, each tile assembly includes: a base plate; a tile panel; a tile interface; and a set of linear actuator assemblies arranged in a radial pattern about the base plate and cooperating to constrain the tile panel in angular roll, linear heave, and linear sway motion relative to the base plate. Each linear actuator assembly includes: a bearing housing defining a linear bearing, a floating bearing, and a through-hole; an actuator mounted to the bearing housing; a distal link coupled to the tile interface; a first support boom running through the linear bearing; a second support boom running through the floating bearing; and a driven boom running through the through-hole of the bearing housing. Each tile assembly also includes a primary controller configured to maneuver tile panels over ranges of angular pitch, angular yaw, and linear surge positions.

A modular display support structure is described, the modular display support structure comprising: a substantially vertical structural member including at least one mounting flange, and a receiving recess, the recess extending parallel with, and for a substantial portion of, a longitudinal axis of the structural member; and a mounting member including an interface flange to mate with the receiving recess, and an attachment flange; wherein the attachment flange includes a plurality of attachment apertures for each of a plurality of display panels. A system and method are also described.

A support head for video/photographic equipment includes: a body on which a seat is formed, which is provided to receive an attachment plate of the video/photographic equipment, and on which body a first and a second region are defined, the regions are separated by the seat, a retaining device movable between a first position and a second position so that the attachment plate is free to enter or come out of the seat, a locking device for locking and unlocking the attachment plate in the seat, the locking device has a control member positioned on the first region of the body, a safety device to prevent the retaining device from accidentally moving from the first position to the second position, and an unlocking element of the safety device to allow the movement of the retaining device from the first to the second position, on the second region of the body.

An adjustable mount for mounting a component subjected to dynamically-varying loads decouples position adjustment of one axis from position adjustment along the other. The mount includes a frame between base and top plates. The frame has apertures for receiving positioners. The positioners abut sides that extend inward from the plates and into the frame. Actuating a positioners causes it to push its corresponding side. This causes relative motion between the frame and the positioner's corresponding plate. Movement interfaces guide these movements during adjustment and locking interfaces lock the frame and the corresponding plate into position after completion of adjustment.

A tool changing system with rigidity improved belt moving mechanism includes a pedestal, a sliding base, a driving unit, a positioning belt, and a transmission belt. The sliding base is disposed on the pedestal, and reciprocatively moves along a linear direction. The driving unit is disposed on the sliding base. The positioning belt and the transmission belt are disposed on the pedestal and include a gear rack, respectively. A detouring section of the transmission belt is separated from the positioning belt, and transmissibly meshed with the driving wheel of the driving unit. When the driving wheel rotates, the detouring section is driven to continuously shift on the transmission belt, and the sliding base is simultaneously driven to slide on the pedestal along the linear direction. Thus, a combination of the positioning belt and the transmission belt achieves an improved rigidity.

The present disclosure relates to an electrically controlled sliding apparatus for photographic equipment, comprising: a controlling component, comprising a power supply and a slider controlling component electrically connected with the power supply; a guiding component; and a sliding component electrically connected with the controlling component and slidably mounted on the guiding component, the sliding component comprising: a rotation component for providing rotation movement; wherein the controlling component further comprises a first conducting part electrically connected with the power supply and the sliding component, the controlling component is configured to supply power to the rotation component through the first conducting part, and wherein the first conducting part comprises a first connecting section and a second connecting section respectively connected with the controlling component and the sliding component.