초록 ▼

A shroud for a welding torch includes a hydrophilic skirt supported by a frame. The skirt is soft and pliable when wet and is self protected from the heat of welding by the water absorbed therein. The frame supports the skirt around the weld site and permits a good seal with the workpiece for exclud

A shroud for a welding torch includes a hydrophilic skirt supported by a frame. The skirt is soft and pliable when wet and is self protected from the heat of welding by the water absorbed therein. The frame supports the skirt around the weld site and permits a good seal with the workpiece for excluding water during the welding process.

대표청구항 ▼

A shroud for a welding torch includes a hydrophilic skirt supported by a frame. The skirt is soft and pliable when wet and is self protected from the heat of welding by the water absorbed therein. The frame supports the skirt around the weld site and permits a good seal with the workpiece for exclud

A shroud for a welding torch includes a hydrophilic skirt supported by a frame. The skirt is soft and pliable when wet and is self protected from the heat of welding by the water absorbed therein. The frame supports the skirt around the weld site and permits a good seal with the workpiece for excluding water during the welding process. radiation in at least one sub-range of the frequency range from infrared to X-rays. 29. The apparatus of claim 28, wherein the at least one evaluation device comprises an additional evaluation device, such that the additional evaluation device is adapted to evaluate the wavelength of the reflected radiation. 30. A method of sorting waste paper pieces of different grades and conditions, the method comprising: moving a plurality of waste paper pieces in a conveying direction on at least one sorting belt, the pieces of waste paper comprising at least one surface which can reflect some amount of radiation; irradiating the at least one surface of at least one waste paper piece while the at least one piece is moving on the sorting belt; registering radiation which is reflected from the at least one surface; determining an intensity difference of the radiation which is reflected from adjacent subareas of the at least one surface; determining a sum of the intensity differences for a particular area of the waste paper piece; comparing the sum of the intensity difference to a limiting value; and separating the at least one waste paper piece from remaining waste paper pieces on the basis of the comparing, wherein waste paper pieces of at least one type are separated from waste paper pieces of at least one other type. 31. The method of claim 30, wherein the separating comprises moving the at least one piece of waste paper using dire