Abstract: What is described is a method and an installation for the simultaneous production of methanol synthesis gas, ammonia synthesis gas, carbon monoxide and carbon dioxide from natural gas, in which several plant elements (or plant units) are serially arranged one by one in one single production chain, whereat these elements comprise: a first reactor A, in which the natural gas is transformed under oxygen supply into a synthesis gas mixture comprised of carbon monoxide, carbon dioxide, hydrogen and steam (water vapour), a second reactor B, which allows to control the transformation of carbon monoxide into carbon dioxide, optionally a compressor C for compressing the generated gases, an absorber D for the absorption of carbon dioxide and for obtaining the carbon monoxide-hydrogen mixture used for methanol synthesis, a low-temperature separator E, in which ammonia synthesis gas is obtained by introducing liquid nitrogen, and in which simultaneously carbon monoxide, argon and methane are removed.

Abstract: A methanol/water scrubbing solution containing colloidal metal sulfides formed from metal carbonyls and resulting from the scrubbing of industrial gases, such as synthesis gas, is subjected to agglomeration of the metal sulfides before the scrubbing solution to be separated enters the separating column. The agglomeration is carried out in a precipitation vessel and the scrubbing liquid is diluted before it enters the precipitation vessel. The result is less than practically 0 encrustation of the trays or other parts of the cleaning plant for the scrubbing solution.

Abstract: In a cylinder head of an internal combustion engine with a cylinder head casting having at least one exhaust passage formed from thin-walled material, which together with the cylinder head casting forms an annular space filled with molding sand, the exhaust passage being supported in the cylinder head casting by sheet-like mounting flanges, a venting duct is provided which extends from the annular space to the outside for discharging gases released from the molding sand in the annular space during casting of the cylinder head.

Abstract: In a cylinder head of an internal combustion engine with a cylinder head casting having at least one exhaust passage formed from thin-walled material, which together with the cylinder head casting forms an annular space filled with molding sand, the exhaust passage being supported in the cylinder head casting by sheet-like mounting flanges, a venting duct is provided which extends from the annular space to the outside for discharging gases released from the molding sand in the annular space during casting of the cylinder head.

Abstract: A thin-walled steel tubing is to be constructed with a double cone coupling nipple for the tight screwed connection with a counterpart by way of a cap screw in a crack-resistant manner. The steel tubing is thin-walled and constructed of high-strength steel. With respect to the remaining tubing area, the nipple has at least partially at least approximately a double wall thickness. The steel tubing is not soft annealed at any point including the whole area of the nipple. With respect to the material, the contact surfaces of the nipple are harder than the surfaces of the countercontact. The cone angle of the sealing surface of the nipple measures over 100.degree..

Abstract: A shaft (34) is supported in the bottom (22) of a casing (20) and is rotatable for mechanical brake application. A ramp assembly (40) which is fixed to the casing and designed as an annular plate is supported on the bottom (22) around the shaft (34) and prevented from rotating by an off-center twist stop (42), and it is centered in the casing (20) in a way bypassing the shaft (34). Moreover, a rotatable ramp assembly (50) is arranged inside the casing (20) so as to be axially displaceable and is connected to the shaft (34) for torque transmission. The rotatable ramp assembly (50) is supported in such manner on the ramp assembly (40) which is fixed to the casing that it converts torque applied to it by the shaft (34) into an axial actuating force (B).

Abstract: The invention is an inverted microscope with a housing having multiple integrated ray paths leading from the specimen being examined to (a) the viewer/operator and (b) one or more auxiliary ports used for image recording and/or measurement by accessories such as cameras and video recorders. The microscope lens is positioned below the specimen stage; and, positioned below the lens, is a simple reflector which deflects the combined rays from the lens diagonally upward toward the viewer at exactly the same angle at which the viewer looks into the microscope's binocular eyepieces. The position of this simple reflector is the lowest point in the unit's paths of rays, thereby significantly lowering the lens turret and, therefore, the specimen stage to a relatively low, ergonomically-appropriate position. The optical arrangement is simple and compact, minimizing the number of deflections in the path of the viewing rays.

Abstract: The invention is an inverted microscope with a housing having multiple integrated ray paths leading from the specimen being examined to (a) the viewer/operator and (b) one or more auxiliary ports used for image recording and/or measurement by accessories such as cameras and video recorders. The microscope lens is positioned below the specimen stage; and, positioned below the lens is a simple reflector which deflects the combined rays from the lens diagonally upward toward the viewer at exactly the same angle at which the viewer looks into the microscope's binocular eyepieces. The position of this simple reflector is the lowest point in the unit's paths of rays, thereby significantly lowering the lens turret and, therefore, the specimen stage to a relatively low, ergonomically-appropriate position. The optical arrangement is simple and compact, minimizing the number of deflections in the path of the viewing rays.

Abstract: A one-piece casing (20) comprising a bottom (22) and a shell (24) formed with a cylindrical bore (26) houses a piston (30) for hydraulic actuation of a brake. For mechanical parking brake actuation, a shaft (34) is supported in the bottom (22) of the casing and a ramp arrangement (50) is rotatable by the shaft, thereby being displaceable axially away from a ramp arrangement (40) which is secured to the casing. Two strut members (60,64) which are screwed together constitute an adjustable strut between the axially adjustable ramp arrangement (50) and the piston (30). A return spring (90) is positioned under axial bias between a thrust bearing (92) secured to the casing and a thrust bearing (58) at one of the two strut members (60). The thrust bearing (92) which is secured to the casing is formed at an insert (84) by which one of the strut members (60) is guided non-rotatably.

Abstract: A spindle assembly for use with a magnetic disk or the like including a pair of bearings axially spaced by an outer ring and a shaft is posed through the outer ring. A receiving part is placed over one end of the shaft. The receiving part has a bore for receiving the outer ring. A drive motor is attached to the other end of the shaft. A housing is positioned on and directly adjacent the outer ring and extends between the drive motor and the receiving part which each have a step-down or reduced cross-section area. The housing has a bore to receive the first end of the shaft and also receives the magnetic disk. A drive motor is provided at the other end.

Abstract: A label carrier web transport for use in heat transfer decorators and the like, in which labels are optically registered to control web transport. A timing assembly coordinates the rotation of a cam shaft with the actuation and deactuation of clutch and brake assemblies within a metering roll. An optical scanner trained on the web registers a predetermined contrast location to actuate the brake and deactuate the clutch, subject to the presence of an enabling signal from the timing assembly. The metering roll, in combination with a reciprocating label shuttle, provides intermittent web motion to achieve controlled label advance. An alternative label transport system incorporates a capstan web drive in lieu of the metering roll, with a microprocessor to control various machine functions including intermittent web transport.

Abstract: A label carrier web transport for use in heat transfer decorators and the like, in which labels are optically registered to control web transport. A timing assembly coordinates the rotation of a cam shaft with the actuation and deactuation of clutch and brake assemblies within a metering roll. An optical scanner trained on the web registers a predetermined contrast location to actuate the brake and deactuate the clutch, subject to the presence of an enabling signal from the timing assembly. The metering roll, in combination with a reciprocating label shuttle, provides intermittent web motion to achieve controlled label advance. An alternative label transport system incorporates a capstan web drive in lieu of the metering roll, with a microprocessor to control various machine functions including intermittent web transport.

Abstract: The ignition timing of a spark-ignited internal combustion engine is controlled to have a stabilized idle speed which is approximately equal to a desired idle speed. In accordance with the invention the engine is supplied with a fuel-air mixture which has a high air ratio, exceeding the air ratio corresponding to maximum mean indicated pressure and hence maximum torque. The air ratio is in a range wherein an increased air ratio corresponds to decreased mean indicated pressure and consequently decreased torque. According to the invention, the ignition timing of the engine is controlled to linearly advance the timing from a nominal retarded condition in proposition to change in engine speed below the desired speed. The timing advance has the same ratio to engine speed change as the ratio of nominal ignition pulse spacing to the desired engine idle speed.

Abstract: The invention contemplates an optical microscope of inverted design and having versatility for application to solve and serve virtually all microscopy problems and needs. The microscope features a particular U-shaped housing with upstanding legs and with integrated optical elements contained within and carried by said housing. A rugged specimen table is removably secured to both legs, and is presented for viewing a specimen on said table via either reflected light or via transillumination, the light source in both cases being so mounted to the exterior of the housing as to be thermally isolated from the housing and from the lens system, the latter being vertically adjustable in the space between the housing legs and beneath the specimen table. Various further features are described.