摘要:
In an illustrative embodiment, a patient card insertable into the device has the patient data thereon light projected onto the x-ray film with the aid of a light source and an optical image reproducing system; variable data in addition to the data of the patient card are brought into the data field so as to be light-projected onto the x-ray film in a common region and with a common orientation.
摘要:
The disclosure relates to a sheet film changer comprising a photographic exposure station, at least one supply magazine for the film sheets, and two discrete, synchronously driven conveyor belts which are disposed one above the other in the vicinity of the exposure station for conveying film sheets clamped between them. The conveyor belts transport the film sheets from a receiving location associated with the supply magazine to the photographic exposure station and then to a release location. In order to facilitate fluoroscopy when no film sheets are disposed in the path of rays, the conveyor belts themselves can be readily irradiated and are provided with intensifier foils only at specified sections. In order to achieve a greater flexibility with regard to the photographic conditions, at least two intensifier foils with different intensification properties are secured to each of the two conveyor belts. The sheet film changer is used for X-ray diagnosis.
摘要:
An improved x-ray diagnostic apparatus having a table mounted on a table support and being tiltable on a support base to positions on each side from a horizontal position with one of the side positions being through 90.degree. characterized by a drive arrangement including a curved drive track on the table support engaged by drive wheels mounted on the support base and a guide arrangement including two spaced guide rails on the table support receiving guide pins or members of the support base when the table is in the horizontal position. When the table moves from the horizontal position, the guide rail of the upper end of the table disengages from its respective guide pin so that the guide rail at the lower end coacting with its guide pin and the support provided by the drive arrangement coact to maintain the lower end above the floor level. Preferably, the drive arrangement also includes a support arrangement having a curved support track engaging a support roller so that only tangential forces are applied between the drive wheel and drive track.
摘要:
At its outside, the table frame or support is provided with two symmetrical, circular drive paths into each of which a drive wheel engages. Two respective guide rails are arranged at the table frame or support at both sides thereof, two respective, stationary guide pegs engaging into these guide rails in the horizontal position, said guide rails being fashioned and directed or, respectively, curved such that, given adjustment of the tilting table out of the horizontal position, respectively two guide pegs leave their guide rail and the lower end of the table frame or support is lifted to such a degree that it lies above the floor level. The curvature of at least one pair of guide rails at both sides of the table frame or support is selected such that the tilting speed is roughly uniform.
摘要:
An X-ray examining apparatus for the examination of upstanding patients, including an X-ray tube which is suspended from a support, and an exposure installation vertically adjustably mounted on a rack incorporating conveying means for the conveyance of film sheets from a supply magazine into an exposure position and from the exposure position into an automatic developing arrangement.
摘要:
A burner for an industrial furnace has a plurality of lines passing through a furnace wall for fuel gas, burner air, and waste gas. Arranged in the furnace space is a combustion chamber (66) in which a mixture of fuel gas and burner air is combusted, and from which a flame (89) is directed into the furnace space. The combustion chamber (66) is delimited by walls (32, 65). The walls (32, 65) are arranged to be movable with respect to one another (65', 65"), so that the volume of the combustion chamber (66) is adjustable (FIG. 2).
摘要:
Devices are described which are suitable for simultaneous hydraulic expansion of several longitudinal sections of a hollow shaft for the production of connections by interlocking or frictional engagement between said sections and elements fitted thereto such as cams, toothed wheels and bearing seats. The devices include pressure probes with a longitudinal hydraulic fluid channel and a radial inlet bore to each longitudinal section of the hollow shaft to be expanded and, if necessary, with a longitudinal discharge channel and a radial discharge bore to the undeformed longitudinal sections of the hollow shaft between the sections to be expanded. Sealing means are provided which seal the undeformed longitudinal sections of the hollow shaft against penetration of the hydraulic fluid from the intermediate longitudinal sections of the hollow shaft to be expanded. It is possible to fit individual sealing elements and/or expansion sleeves with intermediate spacer sleeves onto the body of a probe of uniform cross-section to permit rapid exchange of worn seals. In addition, the probe body can consist of sections screwed together axially which, when of small cross-section, accept sealing elements and, when of larger cross-section serve as spacer pieces. Examples of novel and improved seal shapes are also given.
摘要:
The invention relates to an assembly device for assembling camshafts, comprising a holding device for axially fixing individual elements such as cam discs, bearing seats or gears, including a pressure agent probe for hydraulically expanding a hollow shaft in sections, with the elements and the shaft being connected to each other in a force-locking way.The holding device has been provided with individual fixing discs each having a central aperture for receiving one of the elements such as cam discs, bearing seats or gears as well as an outer bearing seat for being received in a bearing region of the holding device. These fixing discs permit angularly accurate fixing of the individual elements prior to assembly, with the hollow shaft being able to carry out radial movements relative to these.
摘要:
A method to determine the natural frequencies of a bearing system having a shaft arranged on bearings is disclosed in which the shaft is vibrationally excited from one end of the shaft and a measurement signal is picked up at the other end of the shaft using a vibration sensor.
摘要:
A recuperator burner comprising a recuperator is disclosed, comprising a tube section serving as a heat exchange surface with flowing fluids, the tube section having a plurality of pleats wound spirally about the longitudinal axis of the recuperator. The recuperator allows an intensive heat exchange between fluids streaming on the inner side and the outer side and can be manufactured using slip casting, due to its simple geometric shape.