摘要:
Apparatus for producing photographs from an image screen of a monitor, said apparatus consisting of a slidable sheet film platform, a means for sliding said sheet film platform in a Z coordinate direction, means for moving the image screen perpendicular to the Z direction in both X and Y coordinate directions, and a lens situated between said image screen and said film platform for providing a focused image on the sheet film, said lens being connected to said image screen so that the two can be moved together in the X direction, but are still capable of independent movement in the Y direction.
摘要:
A plain film platform for projection screen apparatus for X-ray apparatus has a platform member, a first fixed guiding strip for a film extending along one vertical side, a second fixed guiding strip extending along a lower side near the opposite vertical side over a small part of the platform member, and a third movable guiding strip extending between the first and second guiding strips and displaceable parallel to the lower second guiding strip.
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:
Apparatus for recording data on X-ray films which are stored in cassettes having windows for exposure of certain portions of films therein includes a housing with two slots for insertion of cards with information pertaining to the patient and/or physician. The housing confines a battery of liquid crystals and an associated digital clock, digital calendar and digital counter each adapted to be actuated from the exterior of the housing to cause the corresponding liquid crystals to furnish the selected information. Such information, together with information on one of the cards, is imaged onto the exposed portion of X-ray film in the properly inserted cassette by a partly light transmitting mirror and an optical element. The images of the liquid crystals are inverted depending upon whether the X-ray film bears a postero-anterior or an antero-posterior picture of a patient's chest to thus ensure that the recorded data can be read while the physician looks at the developed film in a manner as is customary for examination of X-ray pictures. The liquid crystals can be illuminated by a discrete light source so that the light source which illuminates the data cards inserted into the housing need not be selected with a view to properly illuminate the liquid crystals and vice versa.
摘要:
An arrangement is disclosed for projecting an identifying image from a data carrier on to a film in a cassette provided with a window which may be sealed against light. The arrangement has an opening mechanism for pushing a cover for the window open and closed. The arrangement further has a projection mechanism and switch means for triggering the opening mechanism and the exposure. The opening mechanism has an engaging device which is guided on a carriage and engages the window cover. The engaging device, which is held in engagement with the window cover via a spring, may be disengaged from the same in any position of the carriage by means of a lifting mechanism. The lifting mechanism has a crank which is connected with the engaging device and is operable from externally.
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).