摘要:
A mass of an elastic or plastic material or other deformable material is used to cushion and absorb the energy of impact when one rigid body strikes another, the mass of deformable material having at least one liquid filled leakproof interior cavity traversing substantially all of the mass. The mass is interposed between the impacting bodies and may be affixed to one or the other. The crushing effect of the impact pressurizes the liquid thereby causing the material to be stressed and deformed as energy is absorbed. A reservoir may be fixed between impacting bodies and be connected by tubing to a pressure vessel which expands to absorb energy.
摘要:
In a shuttleless loom, a yarn is inserted into an open warp shed to form a yarn loop which is anchored by a weft thread passing therethrough upon changing of the warp shed. The yarn is laid across a warp part inserted and anchored again by a following weft thread so that a floating yarn portion, anchored at the ends, is formed on the fabric. The yarn may be a fancy yarn having an ornamental effect, or the floating yarn portion may be used for attaching objects to the fabric.