Abstract: A fiber optic cross connect system comprising a case defining a tray receiving space and at least one tray slideable in and out of the space between a first closed position, a second intermediate position and a third open or accessible position and a sliding engagement between a sidewall of the case and a side edge of the tray is disclosed. The sliding engagement comprises an elongate link member which is stationary as the tray is moved between the first closed position and the second intermediate position and moves with the tray as the tray is moved between the second intermediate and the third open position and such that the elongate link member does not interfere with fiber optic cables which are interconnecting external devices with devices on the tray. In a particular embodiment the link member is held stationary by a releasable locking mechanism.

Abstract: A quick-locking pin including a longitudinal rod, a first tightening stop at one end of the rod and a second tightening stop at the second end of the rod. The second tightening stop includes a second tightening ring, a lever mounted and journalled at the second end of the rod beyond the second tightening ring, the lever having a tightening cam off-centered with respect to its axis of rotation. The axle of the lever is borne by a cap located at the end of the rod between two arms. A transversely movable beam located between the arms of the cap is situated between the periphery of the cam and the external surface of the second tightening ring.

Abstract: A rear-entry alpine ski boot whose shell base (1), surmounted by an upper (2) incorporating a rear cover (3) and a cuff (4), comprises a front cover (5) for closing an upper opening (6) provided in the boot. The front cover (5) is flexible and is suspended between a front point of support (14) and a rear point of support (16), and an area of overlap (8) of the front cover (5) with the cuff (4) is located above the area corresponding to the flexible bend of the skier's foot and in association with the position (H) of the axis of articulation of the cuff (4) on the shell base (1).