Abstract:
An inert, non-absorbent dust is mixed with polyester resin in sufficient quantities that when the mixture is sprayed with fiber glass particles to form a rigid layer of reinforced plastic, the fiber glass particles lay flat without need of rolling.
Abstract:
The invention relates to a vehicle for the maintenance of ski slopes, including a frame (11) for supporting a winch (9), a winch intended to be mounted on the frame and including a winding drum (17) and a winding motor (27) associated with the drum, a cable (15) to be unwound and wound around the drum by the winding motor so as to generate a compensation for the pulling torque of the vehicle, wherein said cable is made of a synthetic material.
Abstract:
Disclosed is a surface relief structure. The structure includes a recording medium configured to be structurally modified when exposed to interfering and non-interfering portions of radiation beams, the structurally modified recording medium including, when viewed in a two-dimensional cross-section along one of the axes of the recording medium a plurality of equally spaced steps of fine-sized periodicity superimposed upon a plurality of deep depressions of substantially coarse-sized periodicity. The structurally modified recording medium is configured to produce in reflection single and multiple colors in a broad spectral range when illuminated by a source of light.
Abstract:
Disclosed is a surface relief structure. The structure includes a recording medium configured to be structurally modified when exposed to interfering and non-interfering portions of radiation beams, the structurally modified recording medium including, when viewed in a two-dimensional cross-section along one of the axes of the recording medium a plurality of equally spaced steps of fine-sized periodicity superimposed upon a plurality of deep depressions of substantially coarse-sized periodicity. The structurally modified recording medium is configured to produce in reflection single and multiple colors in a broad spectral range when illuminated by a source of light.
Abstract:
A measuring instrument comprising a pair of probe (4, 5) elements moveable relative to one another to vary the spacing between sensing areas of each probe, means (12, 15) for producing a signal representing the spacing of said sensing areas, means for monitoring the rate of change of said signal, and means for recording and/or displaying a value representative of said signal upon the rate of change of said signal reaching a predetermined value. Preferably there is a probe including a probe element (4) and a sheath (5), the probe element being slideable within the sheath and protruding therefrom by a variable amount, means for producing a depth signal representing the amount of protrusion of the probe element from the sheath, means for monitoring the rate of change of said depth signal, and means for recording and/or displaying a value representative of said depth signal upon the rate of change of said depth signal reaching a predetermined value.
Abstract:
A method of generating a topology for a material includes parametrizing one or more material properties of the material using virtual testing and generating a topology for the material based on the parametrizing.