A basic experiment has been made to develop a new, high-speed shuttleless loom. The method of experiment was to jet out a measured weft through the piercing hole of a carrier-The carrier was placed in a shooting barrel. The air in the barrel shot out the carrier into the shed. The weft was inserted in the shed while being squeezed through the hole of the carrier. The experiment has let to trial production of a new type of welt-inserting equipment.
Some valuable data as an aid in building a cloth inspecting machine have been obtained by optically evaluating the apparent imperfections (look) of fabrics. A device made for the evaluation was designed to cast a slender light beam vertically on a fabric and measure the quantity of reflecting or passing light. Imperfections in dyeing or fiber gloss were fully detected by reflecting light. Defects due to structural distorsions were revealed by passing light. The ranking of cloth defects observed with the naked eye agreed well with the ranking of the irregularity observed by reflecting light.