Abstract: Should several simultaneously-operating, functional elements (2) be required on processing workpieces (10, 11), a particular support arrangement for the functional elements is thus required, in order to hold the above in the working position thereof, even in the case of curved machining paths. Said support arrangement comprises a base (12) with supports for the functional elements arranged thereon in adjustable positions. The supports are preferably in the form of ring structures (60) and the functional elements arranged in the inner volume thereof, whereby a drive mechanism works externally on the supports, to turn the same.

Abstract: Analytical reagents and mass spectrometry-based methods using these reagents for the rapid, and quantitative analysis of proteins or protein function in mixtures of proteins. The methods employ affinity labeled protein reactive reagents having three portions: an affinity label (A) covalently linked to a protein reactive group (PRG) through a linker group (L). The linker may be differentially isotopically labeled, e.g., by substitution of one or more atoms in the linker with a stable isotope thereof. These reagents allow for the selective isolation of peptide fragments or the products of reaction with a given protein (e.g., products of enzymatic reaction) from complex mixtures. The isolated peptide fragments or reaction products are characteristic of the presence of a protein or the presence of a protein function in those mixtures. Isolated peptides or reaction products are characterized by mass spectrometric (MS) techniques.

Abstract: Analytical reagents and mass spectrometry-based methods using these reagents for the rapid, and quantitative analysis of proteins or protein function in mixtures of proteins. The methods employ affinity labeled protein reactive reagents having three portions: an affinity label (A) covalently linked to a protein reactive group (PRG) through a linker group (L). The linker may be differentially isotopically labeled, e.g., by substitution of one or more atoms in the linker with a stable isotope thereof. These reagents allow for the selective isolation of peptide fragments or the products of reaction with a given protein (e.g., products of enzymatic reaction) from complex mixtures. The isolated peptide fragments or reaction products are characteristic of the presence of a protein or the presence of a protein function in those mixtures. Isolated peptides or reaction products are characterized by mass spectrometric (MS) techniques.

Abstract: Analytical reagents and mass spectrometry-based methods using these reagents for the rapid, and quantitative analysis of proteins or protein function in mixtures of proteins. The methods employ affinity labeled protein reactive reagents having three portions: an affinity label (A) covalently linked to a protein reactive group (PRG) through a linker group (L). The linker may be differentially isotopically labeled, e.g., by substitution of one or more atoms in the linker with a stable isotope thereof. These reagents allow for the selective isolation of peptide fragments or the products of reaction with a given protein (e.g., products of enzymatic reaction) from complex mixtures. The isolated peptide fragments or reaction products are characteristic of the presence of a protein or the presence of a protein function in those mixtures. Isolated peptides or reaction products are characterized by mass spectrometric (MS) techniques.

Abstract: In an apparatus for connecting two workpieces together by welding, the workpieces lie on supporting surfaces and are butted together at their edges to form a butt joint. The workpieces are subjected to pressure on the side opposite to the supporting surfaces. At least one supporting surface is capable of yielding under pressure, and, in so doing, changes its position in relation to the butt joint, so as to reduce any gap between the workpieces.

Abstract: In an apparatus for connecting two workpieces (1) together by a welded seam, the workpieces are held in a welding station between opposed tracks consisting of a plurality of members. The tracks run around guide rollers in a conveying direction. A clearance (a) between the guide rollers which come first in the conveying direction can be changed upon insertion of the workpieces between the tracks.

Abstract: In a process for joining two metallic workpieces together, the pieces are butted together to form a butt joint and are joined to one another in the region of the butt joint. During this operation, the workpieces are subjected to a magnetic attraction force at one side, and. can be subjected to holddown pressure on the opposite side.

Abstract: In a method for connecting two workpieces together by welding, the workpieces are placed on clamping tables by a feed unit and are joined together by a welded seam. First, the workpieces are positioned in the feed unit. The feed unit is then traversed between the clamping tables and deposits the workpieces on them. Simultaneously with its feed movement, the unit expels the workpieces welded together in the preceding cycle.

Abstract: In a method for connecting two workpieces together by welding, the workpieces are placed on clamping tables by a feed unit (F) and are joined together by a welded seam. First, the workpieces are positioned in the feed unit (F). The feed unit (F) is then traversed between the clamping tables and deposits the workpieces on them. Simultaneously with its feed movement, the unit (F) expels the workpieces welded together in the preceding cycle.

Abstract: In a process for joining two metallic workpieces (1.1,1.2) together, the pieces are butted together to form a butt joint (2) and are joined to one another in the region of the butt joint (2). During this operation, the workpieces (1.1,1.2) are subjected to a magnetic attraction force at one side, and can be subjected to holddown pressure on the opposite side.

Abstract: In a method for connecting two workpieces together by a welded seam, the workpieces are held in a welding station between opposed tracks consisting of a plurality of members. The tracks run around guide rollers in a conveying direction. A clearance (a) between the guide rollers which come first in the conveying direction can be changed upon insertion of the workpieces between the tracks.

Abstract: A profiling tool is mounted on a tool slide which can be moved radially towards the electrode roller (10) by means of a feed drive. A feeler slide which carries a feeler can move parallel to the tool slide and is biassed towards the electrode roller. Relative movements of the tool slide with respect to the feeler slide, and thus the depth of feed of the profiling tool into the electrode roller, are limited by an adjustable limit stop (76). The tool slide can be stopped by means of a clamping device as soon as the predetermined depth of feed of the profiling tool is reached. The setting of the profiling tool automatically adapts to the diameter of the electrode roller, which decreases with repeated profiling.