摘要:
The leaders of successive topmost sheets of a stack of sheets are lifted by a set of aligned suction cups which move each leader into a horizontal plane including the nip of two advancing rolls. The suction cups insert the leading edge of each leader into the nip and continue to adhere to the leader while the latter is advanced by the rolls so that the leader pulls the suction cups against the opposition of a weak spring tending to move the suction cups and their mobile support to a starting position. The drive for the advancing rolls is thereupon arrested for an interval of time which suffices to ensure the collapse of suction in the cups by arresting the suction pump and by simultaneously opening a valve which connects the interior of each cup with the atmosphere.
摘要:
A bath container for liquid treatment of a photographic emulsion carrier has a refill bottle which automatically adds fresh liquid to maintain the liquid level. An overflow maintains the maximum liquid level. A pump having an intake as far removed as possible from the refill bottle serves to circulate the liquid. It further serves to forceably remove liquid from the container corresponding to the quantity of emulsion carrier processed. The signal signifying the quantity of processed emulsion carrier is furnished by a selector switch while scanning the emulsion carrier and connects a capacitor to a constant current source in the presence of the emulsion carrier and to a discharge circuit, in turn connected to circuits which energize the exhaust pump operation, in the absence of the emulsion carrier. Further circuits directly connected to the capacitor serve to energize the exhaust pump operation when the voltage across the capacitor has reached a predetermined voltage.
摘要:
A device and a method for reading out information stored in a storage layer (15), and an X-ray cassette are proposed which make use for the purpose of erasing information stored in the storage layer (15) of an erasing means (11, 12, 14) which generates an erasure radiation (17). This erasure radiation (17) can have both a first and a second intensity, the first intensity being larger than the second intensity.
摘要:
Apparatus for transferring sheets from a relatively wide or relatively narrow stack of sheets into a transporting device has a pair of suction cups which engage the leader of the topmost sheet in the stack and turn it through 90.degree. so that the leader becomes separated from the leader of the sheet therebelow. The suction cups are thereupon raised to the level of the nips of driven advancing rolls in the transporting device to move the leader into a plane which includes the nips and is parallel to the planes of sheets in the stack, and such leader is introduced into the nips so that the advancing rolls engage the leader while the latter becomes detached from the suction cups. The suction cups engage only a portion of the leader of a relatively wide sheet, and the remainder of the leader is flexed with the engaged portion to ensure that it enters a path which is defined by additional advancing rolls of the transporting device simultaneously with entry of the engaged portion of the leader into the nips of the driven advancing rolls. The apparatus can be used with advantage for removal of successive topmost X-ray films from a stack of films regardless of the width and/or height of the stack. The suction cups descend from the level of the nips to the level of the topmost sheet in the stack as soon as the transfer of the preceding sheet is completed and along a path such that each of a series of successive properly stacked sheets is engaged at the same distance from its leading edge.
摘要:
A transporting device, preferably for transporting workpieces (1) between processing stations, the device comprising an upright (2) and at least one holding device carried by upright (2) for receiving workpiece (1), the holding device (3) having again at least one holding element (4) adapted for engagement with the workpiece (1), is designed and constructed to obtain a faster timing sequence with smallest possible floor space requirements, in particular within the scope of treating foundry cores and molds, in such a manner that the holding device (3) is continuously rotatable about a vertical axis (5), so that the holding element (4) describes a substantially circular path.
摘要:
An easy-to-disassemble vertical gas diffusion electrode, assembly of sandwich type construction is provided with a gas feed tube to the highest point and a discharge line from the lowest point of the electrode and is operated with its gas chamber held under a weak vacuum.
摘要:
An apparatus for the generation of an inductively excited ion or plasma source includes an amplification system and a high frequency excitation coil which are coupled to form a self-starting free-running excitation oscillator.
摘要:
For slow motion playback operation with a digital video magnetic tape recording and reproducing equipment an intermediate memory system has four picture field memories of which there are always three available for writing into but only one of them at a time is in read-out operation. In a first reading operation of a particular picture field memory an AND correlation of a write flag and an error flag is necessary for providing an error recognition signal to following circuits and before a reading goes to the next address the write flag is erased by writing in a logic zero, but the correlated signal is used to rewrite the error flag in the error flag memory. In subsequent readings any error flag is transmitted and rewritten, but all write flags remain erased to signify that the memory has been read out at least once.
摘要:
The invention relates to an inductively excited ion source with a vessel (1) around which a coil (2) is wound. The vessel (1) consists of a chemically inert material and is used to receive the substance to be ionized. A high-frequency generator (12) is connected by one of its terminals to the coil (2) both ends of which are grounded, while the other terminal (22) is also grounded. The length of the coil (2) which is to be regarded as an electrically long conductor, is .lambda./2, .lambda. being the wavelength of the voltage of the high-frequency generator (12) (FIG. 3).
摘要:
A copying apparatus, comprises a bottom, a process device for lazer beam graphic representation or for sheet film taking or sheet copying and having a housing, and a handling device for sheet films or sheets handling and having housing, the housing of the processing device being supported on the bottom in a vibration-free manner and arranged in the housing of the handling device in a contact-free manner, the housing of the handling device being arranged on the bottom.