摘要:
A guide roll for a porous belt, for instance for the drying wire of a paper machine, is described. A perforated roll shell rotates about a stationary air guide box. The guide box has two air chambers which extend across the length of the guide roll. One air chamber serves the discharge of blowing air and the other air chamber serves the intake and removal of suction air. Contained between the air guide box and the roll shell is an annular space in which a blowing zone and a suction zone are defined by longitudinal seals. Considering that blowing air and suction air may have different temperatures, the two air chambers of the air guide box are movable axially relative to each other.
摘要:
An electromagnetically-actuated fuel piston pump is constructed so as to eliminate the distracting pumping noises occurring during the functioning by using a dampening elastic element arranged at a site protected against contact with the delivered fuel by seals. The seals accomplish a bearing of the cylinder, which simplifies the fabrication.
摘要:
Date and time information are provided in a telex and data switching system (EDS), which is connected with subscriber stations (Ttx) that are located in different time zones (ZZ1 to ZZ4). The telex and data switching system makes available a number of current date and time information items assigned to the respective individual time zones that correspond to the number of time zones to be taken into consideration. From these date and time information items there is selected, in the course of the establishing of connections, the date and time information corresponding to the subscriber stations involved in these connections, which is then made available for transmission to these subscriber stations information.
摘要:
A control unit contains a memory in which a program having command words is stored, a condition multiplexer with which it is determined whether a condition indicated in a command word exists, and an address unit in which the actual address of the command word to be targeted in the memory resides. For executing interruptions in the program sequencing at any given moment, a further multiplexer, a further address unit and at least one address register are provided. Upon occurrence of an interrupt request, the actual address is brought into the address register and the address of the next command word to be processed is supplied to the address unit by way of the further multiplexer. After termination of the processing of the interrupt request, the content of the address register is again applied to the address unit by means of the further multiplexer. The through-connecting of the further multiplexer is controlled by the further address unit.