Abstract:
The invention provides a concept for a series of forwardly tilting truck cabs which may be readily adapted to different sizes of trucks. The basic structure of the cab comprises a front wall, a back wall, a roof assembly and a floor assembly. A plurality of standard functional modules may be fitted to the basic cab. The complete access step unit is separate from the cab and is directly secured to the vehicle chassis. Exposed parts of the cab are provided with stiffening members of which at least some are adapted to perform additional functions.
Abstract:
Base radio stations are spatially arranged in a radio transmission system in accordance with a cellular system, separating the message transmission channels from adjacent base stations being effected either by using the frequency-division multiplex method or by using the code-division multiplex method or by using a combination of these multiplex methods. In appropriately large spatial distances the same set of channels can be repeated in a further radio cell. If a mobile radio station moves during the conversation from one radio cell into another, then it is necessary to hand-over the then existing radio connection. To avoid the necessity of using additional receivers in each base station and to prevent a repeated hand-over in the event of high co-channel interferences, the measurements used for hand-over decision are effected in the mobile radio station. As part of the method the reception quality of the co-channel message transmission channels of remote base stations are additionally measured in the mobile station during the existence of a radio connection to a near base station.
Abstract:
In a two-way radio transmission system, a fixed base station transmits and receives over at least one communication channel a plurality of messages for different types of receivers (TGAx) used in different services (DY). The base station transmits an organization data flow identifying the message type (TGAx) and services (DY). A plurality of different subscriber transmitter receiver sets receive each message type (TGAx) and transmits messages to the base station. The receiver sets decode the organizational data flow, and process only those messages and services which are associated with a given message and service type. In this way, different classes of communication services may be offered, using a common base station.
Abstract:
A process for creating a support means for a component part of a usually complicated configuration that is to be reworked and/or repaired, by surrounding the surfaces of the component part that are to be supported by a meltable alloy which, in the cooled state, supports said component, and by removal of the meltable alloy after the treatment of the component part by heating is characterized in that, before the pouring, cooling pipes are placed in the support area to be cooled during the treatment of the component part, with said cooling pipes, during the pouring process, being embedded by said meltable alloy. Thus, a support means is created that can be produced in a simple and rapid manner, for a component part having a complicated support surface, which can also be well cooled. A support means of this type is especially suitable as a welding device for a component part to be repaired which is to be repaired, for example, by micro-plasma build-up welding.
Abstract:
Agent for impregnating materials that contain cellulose, mainly paper and wood. The active ingredient is a mixture of alkali aluminate and alkyl silanols that exhibits an intense hydrophobing effect at low concentrations. The agent can be employed in aqueous solution, e.g. in an enclosed space without the special exhaust devices required with volatile solvents. The solution is storage-stable. It contains preferably between 0.1 and 2.0% by weight of alkyl silanol and between 0.03 and 0.1% by weight of alkali aluminate.
Abstract:
Chlorine is reacted with excess tin in liquid tin(IV) chloride at 20.degree. to 90.degree. C., 30 to 300 dm.sup.3 (S.T.P.)h.sup.-1 of chlorine being passed in per dm.sup.3 of tin(IV) chloride present in the reaction chamber and 0.08 to 0.3 dm.sup.3 h.sup.-1 of tin(IV) chloride being recycled with cooling per 1 dm.sup.3 (S.T.P.)h.sup.-1 of chlorine passed in. An excess of tin of at least 4 times the weight of chlorine passed in per hour is maintained. An amount of tin(IV) chloride is taken out of the cycle such that the level of the tin(IV) chloride in the reaction chamber remains approximately constant. The tin(IV) chloride taken off is brought into contact at 60.degree. to 110.degree. C. for an average residence time of 1 to 7 hours with tin in liquid tin(IV) chloride, thereafter filtered and, if appropriate, treated with absorbing agents. Pure, ready-for-use tin(IV) chloride is obtained continuously without a purification by distillation in a simple, readily cleanable apparatus made of a cheap material.
Abstract:
Coal is gasified under elevated pressures and temperatures in a reactor having a rotatably mounted grate and supply conduits for oxygen-containing and oxygen-free gasifying agents. The rotary grate contains an internal chamber adjacent to the bearing for the grate and one of the supply conduits is adapted to feed an oxygen-free fluid to this internal chamber. The uppermost portion of the rotary grate contains a substantially closed internal chamber which has a supply conduit for feeding an oxygen-free fluid thereto. A mixing chamber is positioned between the uppermost chamber and the chamber adjacent the bearing for the grate and is provided with passages which lead to the charge to be gasified. The mixing chamber communicates with the uppermost chamber as well as the chamber adjacent the bearing and also has a supply conduit for feeding gasifying agents containing free oxygen thereto.The process disclosed involves maintaining those portions of the rotary grate having the least resistance to free oxygen in a steam atmosphere.
Abstract:
The system for opening and/or closing an inlet valve (10) and/or an outlet valve (30) of a liquid container (24), particularly for water toilets, water tanks or the like, comprises an inlet tube (16) with an inlet valve (10) in the upper portion of the container (24) and an outlet tube (20) with an outlet valve (30) in the bottom portion (25) of the container (24), both valves (10, 30) being provided with a valve body. It is characterized by the use of a bistabile inlet valve (10) having a lag-free opening and closing characteristic without any intermediate opening position of the valve body (14; 38, 46), the closing stroke of the valve body being assisted by the flow of the liquid.
Abstract:
The invention relates to a method for producing thin layers (3) of a silicon that can be subjected to plastic treatment, whereby the silicon layer (3) is extruded, and to the thin silicon layer produced by said method.
Abstract:
A body for a motor vehicle comprises a frame, a bonnet connected on a first side to the frame by a hinge and on a second side by a bonnet lock, and at least one actuating element which can be extended in the event of an accident in order to raise the bonnet. The actuating element comprises a movable part acting on the first side of the bonnet. A catch of the bonnet lock is coupled to the movable part in order to release the bonnet lock (when said actuating element is extended.