Abstract: Mechanism for swiveling, locking/unlocking and separating/pressing a first and second housing part, which are connected by means of a swivel axis, of which one housing part can be swiveled. Such mechanism has a common operating unit in the area of the free end of the housing opposite the swivel axis, in such a way that locking/unlocking, swiveling, and separating/pressing the first housing part is carried out together and with one hand by means of the operating unit in a single motion.

Abstract: The invention relates to a device for manual replacement of a roller (1) of a copying machine, the roller being equipped with carrying means, in which it can turn freely around its center axis (X1), and the machine (F) on the one hand having rollers (1; 2) in a roller pair arrangement for routing through and delivering a recording medium (S) in the form of a sheet or strip, which rollers can be operated in rotation in an adjoining, axially parallel arrangement in the bearing points (L1; L2; L3; L4) of the machine, and are supported by their axial ends, and on the other hand there being manually activated means for releasing/fixing the rollers in their bearing points and for separating/compressing (3) the rollers in the radial direction for purposes of removing them from and inserting them into their bearing points.

Abstract: In a guide and calibrating tool for guiding container bodies for welding, at least one of the guide rollers is driven. The drive is pneumatic, by compressed air blown by a nozzle onto recesses in the roller. The roller is driven only initially upon restart of the welding machine or in the event of a break in the passage of a series of bodies, in order that no braking is caused by the arrival at the guide tool of the first (and possibly second) body. This enables the gaps between the bodies to be kept more constant even at the start of a series of bodies to be welded, and the first bodies to be welded do not suffer increased slip between the bodies and the welding electrodes.

Abstract: An optical scanning system includes a power meter that during calibration operations is illuminated by an attenuated excitation beam. The power meter measures optical power in the attenuated excitation beam at various index settings of a variable optical attenuator, and the system constructs a lookup table that relates incident excitation beam power to the index settings of the attenuator. The system then uses the table to select the appropriate setting for the attenuator in order to deliver to the sample an excitation beam of a specified optical power. The system calibrates the gain of a detector by redirecting, or reflecting, the excitation beam of known intensity to the detector. A photometric device in the detector produces a signal that is proportional to the intensity of the beam at various gain settings. The system then produces a lookup table that relates the gain settings to the actual gain of the detector, that is, to the ratio of the known incident power to the detector readings.

Abstract: In a guide and calibrating tool for guiding container bodies for welding, at least one of the guide rollers is driven. The drive is pneumatic, by compressed air blown by a nozzle onto recesses in the roller. The roller is driven only initially upon restart of the welding machine or in the event of a break in the passage of a series of bodies, in order that no braking is caused by the arrival at the guide tool of the first (and possibly second) body. This enables the gaps between the bodies to be kept more constant even at the start of a series of bodies to be welded, and the first bodies to be welded do not suffer increased slip between the bodies and the welding electrodes.

Abstract: A process and apparatus for resistance-welding produce a welding current which pulsates in periodic half-waves, in particular an alternating current. The, welding current is generated from a primary alternating voltage which is chopped n times (n>1) in each half-wave and pulse width modulated in order to regulate the welding current. A regulator is provided and has a storage device containing the current nominal values for each chopping interval, corresponding to the welding current form, for comparison with each actual current value determined in each chopping interval.

Abstract: With the process according to the invention for the purification of salt-charged waste water by wet oxidation of organic constituents under supercritical conditions, the reaction is performed in the form of a flame (5). In this case the supercritical zone is surrounded with a subcritical by-pass flow (4) formed from cooling water. At one end of the reactor (1) constructed as a cylindrical pressure vessel are provided at least one burner nozzle (2) and at least one annular inlet point (48), surrounding the burner nozzle, for the cooling water; at the other end is disposed at least one common outlet point (160) for cooling water, reaction products and in particular precipitated salts. Thanks to the by-pass flow there are no obstructions caused by salts; and corrosion problems are substantially reduced.

Abstract: At the free end of a pivotable arm (1) of an aligning device, two wheels (4, 6) of identical diameters are mounted for independent rotary movement, such wheels being driven by a shaft (2). The wheels (4, 6) are each eccentrically offset from the axis of rotation (2a) of shaft (2) by the same amount (26, 27)and are uniformly spaced about said axis. With respect to a plane running perpendicularly to the axis of rotation (2a) of shaft (2), each wheel (4, 6) is mounted at an acute angle (.alpha.) such that adjacent wheels (4, 6) are arranged in a V-shaped configuration. The eccentrically (26, 27) and the angular position (.alpha.) of the wheels (4, 6) are related such that the contact surface (4b and 6b) of each wheel (4 and 6, respectively) resting on the sheet to be aligned carries out a movement transversely to the sheet-entrance direction (A) and towards the lateral limiting wall (18).

Abstract: A device for aligning supplied sheets into a stack in a collecting tray includes a pivotable arm that has a free end. First and second drivable wheels are mounted at the free end of the pivotable arm for contacting each supplied sheet to be aligned. A lifting device including an electromagnet is connected to the pivotable arm for lifting the pivotable arm, and a control device is connected to the electromagnet for selectively controlling lifting and lowering of the pivotable arm and first and second drivable wheels.

Abstract: The invention provides a cryostat whose components are detachably connected to each other. Each of the tanks (1, 7) is equipped with only one radial pipe (15 or 16) arranged at the end of the tank (1, 7). Each of the inner components (3, 7) is provided, at its end neighboring the pipe (15), with a detachable cover (5, 9), and provided with a recess (31, 71) into which the pipe (15) can be introduced from the end of the component. The jacket (11) is divided in a plane neighboring the pipes (15, 16). The shorter section (45) comprises a recess for the pipes (15, 16) passing through the jacket, and a connection for a tower (19) enclosing the pipes. This makes it possible to do without any welded connections between those sections of the concentrically arranged components which pass through each other.

Abstract: The components of cryostats are interconnected by means of tension members which are frequently made from a fiber glass reinforced plastic material. Such members, which exhibit a rectangular cross-section and bores for receiving the mounting bolts have shown to be not fully reliable because they tend to break easily in the areas of the bores. Consequently, loop-like tension members have been frequently used; but their production is expensive and connected with considerable production tolerances. The invention proposes to use a tension member which is cut out from a plastic sheet material reinforced by a fiber glass weave, and which comprises an elongated portion (21) with parallel edges, followed on both ends by enlarged areas (22) with bores (25) for the mounting bolts. The transition between the central area (21) and the enlarged areas (22) is formed by a transition portion (23) with arc-shaped edges (24).