摘要:
Apparatus for feeding dielectric receptor sheets and/or sheet-like carriers for receptor sheets to the ionography imaging chamber of a radiographic system from a nearly upright stack of overlapping sheets has a set of suction heads which are mounted on a first lever pivotally mounted on a second lever. The first lever is repeatedly pivoted relative to the second lever to thereby move the suction heads, which attract a portion of the outermost sheet of the stack below the upper edge face of such sheet, along an arcuate path to thereby flex the upper part of the outermost sheet away from the neighboring sheet. The second lever is thereupon pivoted to complete the separation of the outermost sheet from the neighboring sheet and to introduce the upper edge face of the separated outermost sheet into the nip of two advancing rolls which transport the sheet toward or into the interelectrode gap of the imaging chamber. A stripping device is adjustably mounted in the path of movement of outermost sheets with the suction heads relative to the second lever to flex such sheets between the suction heads and the respective upper edge faces whereby the outermost sheets are even more likely to become separated from the neighboring sheets. A pivotable lever is provided to maintain the stripping device in such position that the latter is located at a fixed distance from the paths of upper edge faces of successive outermost sheets, irrespective of changes in the thickness of the stack.
摘要:
Apparatus for feeding dielectric receptor sheets and/or sheet-like carriers for receptor sheets to the ionography imaging chamber of a radiographic system from a nearly upright stack of overlapping sheets has a set of suction heads which are mounted on a first lever pivotally mounted on a second lever. The first lever is pivoted relative to the second lever to thereby move the suction heads, which attract the upper marginal portion of the outermost sheet of the stack, along an arcuate path to flex the upper marginal portion away from the neighboring sheet. The second lever is thereupon pivoted to complete the separation of the outermost sheet from the neighboring sheet and to introduce the upper marginal portion of the separated sheet into the nip of advancing rolls which transport the sheet into the interelectrode gap of the imaging chamber. A hold-down device abuts against the outer side of the outermost sheet below the suction heads during flexing of the upper marginal portion of the outermost sheet.
摘要:
In a method for producing a coupling on a pipe, preferably consisting of copper or steel or Cu—, Ni—, Fe— alloys, by way of a preferably graduated or one-stage expansion of the pipe end to create a much larger difference in diameter, an expansion tool is introduced axially into the end of the pipe. Once the expansion tool has been introduced into the pipe end, the region of the pipe end that is to be or has been expanded is completely or partially compressed, by a force acting axially on the pipe end, so that the external diameter of the pipe end that is to be processed is delimited by one or more shaping jaws that completely or partially surround the pipe end. The invention also relates to a device for producing a coupling on a pipe end according to the method.
摘要:
A wet wipes package including an outer carton having an opening. Disposed within the carton is an interior tub having a baffle and an aperture located in the baffle. A rigid flip top is disposed over the carton opening for access to the interior tub and a plurality of wet wipes is disposed within the interior tub beneath the baffle. Because the exterior of the wet wipes package is similar to a facial tissue carton, similar graphical treatments as applied to facial tissue cartons can be used to design an attractive package.
摘要:
A stretchable device is provided including a base layer; a wipe layer attached to the base layer at a seam and defining an interior space between the wipe and base layers, the interior space having an internal surface; and a pouch positioned within the interior space and attached to one of the seam and the internal surface, the pouch having a top layer, a bottom layer attached to the top layer to form a cavity therebetween, an opening in one of the top and bottom layers, and a pull tab coupled to the pouch and to one of the seam and the internal surface.
摘要:
Methods and systems for enhancing quality of liquids by treating a source liquid to enhance the concentration of low zeta potential crystals and hydrated electrons and produce a treated liquid having a higher concentration of low zeta potential crystals and hydrated electrons than that of the source liquid. The inventive system comprises an aqueous liquid source having a threshold concentration of selected minerals and a liquid treatment system for treating the aqueous source liquid to produce treated liquid having an enhanced concentration of low zeta potential crystals and hydrated electrons.
摘要:
A technique for controlling a machining system having a plurality of machining stations for machining workpieces with a plurality of machining operations. Each of the plurality of machining operations is allocated automatically to a specific one of the machining stations to attain uniform utilization of the individual machining stations, to the extent possible. This facilitates the initial setup of the machining system as well as correcting the setup if machining errors or deviations occur.
摘要:
The X-ray sheet film cassette has a top part hinged to a base part. The bottom of the base part is provided with a frame enclosing a film supporting plate through which the radiation is transmitted. The supporting plate has a laminated structure including two face plates of thermoplastically bonded carbon fibers and a comparatively thicker intermediate plate of a synthetic hard foam rubber sandwiched between the face plates and being glued thereto. The face plates are considerably thinner than the intermediate plate in the laminated supporting plate of the present invention.
摘要:
A drill for performing a roughing cut in a workpiece as the drill is advanced, and performing a finishing cut as the drill is retracted. A blade carrier is mounted eccentrically on the drill to be movable between first and second positions. In the first position, the blade is located for a roughing cut. In the second position, the blade is shifted radially for a finishing cut. A spring biases the carrier toward the second position and yields when the carrier moves to the first position. The spring bias is too weak to overcome reaction forces acting on the blade during a roughing cut, wherein the roughing cut reaction forces cause the carrier to be shifted to the first (roughing cut) position. The spring bias is strong enough to overcome the weaker reaction forces occurring during a finishing cut, so that the carrier is automatically shifted to the second (finishing cut) position when the drill is withdrawn through the workpiece. Thus, the blade is automatically shifted from the roughing-cut position to the finishing-cut in response to the initiation of a movement of the tool in a direction of withdrawal through the roughly cut hole.
摘要:
A transport roller made of plastics by extrusion and used for photomechanical apparatus for transporting film or X-ray cassettes or the like is formed as a sleeve having an internal recess, the surface of which is provided with a plurality of inwardly radially protruding ribs which ensure a stable and rigid structure of the roller without requiring a metallic core in the roller.