Abstract: In an apparatus for mounting two or more optical elements that are each held in an individual mount or in a support structure, said optical elements are mounted in a common mount. The relative positioning of the optical elements (10, 11) in the common mount (18) can be set.

Abstract: The present invention provides a device for aiding the removal of a bag from a container. The device comprises a body having a rear wall and a plurality of side walls that define a receiving area. A lever is pivotably coupled to the body of the device and the lever pivots from a raised position whereby the lever is disposed in the receiving area to a lowered position. Pressure can be applied to the lever in the lowered position to substantially prevent the container from lifting upwards as the bag is lifted from inside the container. The device also comprises a mechanism for removably mounting the body to the container so that the device can be reused and/or used on multiple containers.

Abstract: In an apparatus for mounting two or more optical elements that are each held in an individual mount or in a support structure, said optical elements are mounted in a common mount. The relative positioning of the optical elements (10, 11) in the common mount (18) can be set.

Abstract: Apparatus for machining an extremely large and very heavy workpiece, such as a runner of a hydro-turbine machine, in situs. The hub of the hydro-turbine runner is utilized as a support for a rotatable beam which is arranged to carry a depending grinding or cutting tool in position to machine the wear ring surface of the turbine. Positioning of the grinding tool both in a vertical direction and a radial direction is effected to control the grinding operation. The power drive grinding tool is bodily rotated around the wear right by rotating the entire supporting beam around an axis which is concentric with the axis of the runner.