Abstract: A respirator mask with connection openings for filters and a mask body, which is designed as a full mask or as a half mask, is improved such that subsequent conversion into one respirator mask configuration or another will be simplified and possible without the use of separate closing parts. To achieve this, a connecting adapter (2) with connecting ports (4, 10) can be fastened in at least two preferred positions on the full mask or half mask (1). A predetermined number of connection openings 8, 9 and connecting ports (4, 10) overlap in each preferred position. Various numbers of filters 3 can be connected to the overlapping areas, and the non-overlapping connection openings 8 are closed with sealing means 7 provided on the connecting adapter 2.

Abstract: A navigation system for guiding unmanned vehicles with any desired wheel configuration without guide wire for free movement on paths and along curves along a virtual reference path having at least one straight and/or curved section. Discrete elements are floor-installed which are in operative conneciton with a vehicle internal path control device via the vehicle's internal sensory analysis system for correcting the course of the industrial truck. The discrete elements are arranged at spaced locations exclusively along the area of the reference path forming a linear formation chain as navigation reference points P. The distance between the reference points P are either regular or irregular and may be relatively great distances equal to a multiple of the wheel base of the vehicle. The on-board sensory analysis system exclusively determines the distances and measures the distance between the longitudinal axis of the industrial truck and the navigation reference point P.

Abstract: Chains having links in the shape of a figure eight can be made by the method and apparatus of the present invention. The last link of the chain is first held in a secure position. Oval shaped loops are cut from an oval shaped helix in such a manner that the ends of the loops are spaced apart. The ends of the loops are then passed through the eyes of the held last link of the chain. The ends of the loop are then closed and the loop is then grasped at opposite ends of the oval and twisted to form the figure eight shape. The present invention has a collet 30 for holding the last link of the chain, a collet 40 for grasping the loops created from the oval shaped helix. The collet 40 is movable for insertion of the arms of the loop into the eyes of the last link. A clamp 50 joins the ends of the loop and the clamp 50 and collet 40 then perform a twisting motion which results in the loop being formed into a figure eight shape.

Abstract: The foot support (5) has an H-shaped beam (6) as well as two feet (7). The beam (6) and the feet (7) are made from metal pipes with rectangular cross section. The height of the foot support (5) is adjusted by adjusting the depth of insertion of the feet (7) into the beam (6). The feet (7) and the beam (6) have bent parts (7a and 6c) for fastening. The foot support (5) is also suitable for in-front-of-the-wall mounting and the in-the-wall mounting of the installation block. The feet (7) are inserted into the beam (6) such that its bent parts (7a) are directed toward the building wall (1) in the first case and away from the wall in the second case. The foot support (5) has a high load-bearing capacity and is particularly suitable for the installation of a wall-mounted toilet in front of a light-construction wall.

Abstract: There are provided 4,5-Dihydroxy-2,6,6-trimethyl-2-cyclohepten-1-one, a method for preparing the same and an antiulcer agent containing the same as an effective ingredient.

Abstract: A double pipe connection is provided having a one-piece gasket (5), which extends sealingly into an intermediate space (1c) of one pipe end (1a) with an internal, transversely extending wall (5c), on one hand, and, also sealingly surrounds a partition (2c) of the other pipe end (2a), on the other hand. The two pipe ends (1a and 2a) are inserted into each other in the axial direction, and are held together with a locking bar (6) in a positive-locking manner. The cross section of the pipe connection may be non-round, e.g., rectangular. Since the pipe ends have no flanges and outer threads, they may be cut to any length, and shaping suitable for injection molding is possible. The double pipe connection is particularly suitable for liquid-bearing pipes on sanitary devices, e.g., drain fittings for wash stands.

Abstract: A gas generator for an air bag has a combustion chamber (6), which is surrounded by an annular filter chamber (11), wherein the annular filter (14) of the filter chamber (11) has an exposed annular surface extending on its outside over its entire circumference for discharging the propellant gases into the air bag (24).

Abstract: A respirator mask with a respirator filter and bellows sealing off the interior space of the mask against the surrounding atmosphere, which bellows surround the respirator filter at its end facing the interior space of the mask in the form of a rigid cuff, is to be improved such that replacement of the respirator filter will be simplified. To accomplish this task, the cuff (7) is continued in an elastic sleeve (8) nearly completely surrounding the respirator filter (2), and, with the sleeve (8) folded back, the respirator filter (2) can be inserted into or can be removed from the cuff (7).

Abstract: A wiring device in a direct current machine, wherein brush are slidably held in brush boxes of a brush holder, a coupler embedded therein with lead terminals for feeding electric power to pigtails connected to the brushes is fixed to the brush holder, and a brush holder and the coupler are clamped by an end bracket and a yoke. Side walls connecting the brush boxes to each other are expandingly formed on an edge portion of the brush holder. A cutaway portion for positioning the coupler is provided in one of the side walls, and an engageable portion engageable with a forward end portion of the coupler is expandingly formed on the brush holder between the cutaway portion and the respective brush boxes.

Abstract: In a security revolving door is provided (1) with a turnstile (2) rotatably through one passage sector (8) and one blocking sector (9), which turnstile can be turned into a defined resting position. An electronic control unit (28) with peripheral monitoring devices is provided to control a blocking device (14) releasing or blocking the rotation of the turnstile (2). The blocking device (14) consist of the simplest possible, identical individual parts, which can be simply adjusted or readjusted to different cases of application and modes of operation. This is achieved by the blocking device (14) having a blocking member (15) which is connected nonrotatably to the turnstile (2). The blocking member is provided with blocking cams (18, 19, 20), whose number corresponds to the number of the cross wings (4, 5, 6), and is associated with two electromagnetically controllable blocking elements (16, 17).

Abstract: A hollow shaft in which an externally threaded portion is forced on an outer periphery of an opening portion at one end of a main body and an engageable groove engageable with a tongue piece of a washer for a bearing is recessedly provided in the axial direction in the externally threaded portion. The engageable groove is recessedly provided to define a remaining wall portion at an outer end of the hollow shaft in the axial direction, whereby a reinforcing ring portion is integrally formed at an outer end portion of the externally threaded portion in the axial direction, the width of the remaining wall portion being set at such a dimension that the washer for the bearing can be coupled into the externally threaded portion.

Abstract: The meat duct (6) is equipped with a gate (17) to cut the meat supply at intervals and with a plate (14) to regulate the passage of the meat (7). The sheet material paper rolls (9, 10) to wrap the hamburger have respective inertial brakes (26) and sensors (25) which, when the paper runs out, touch the core (23) of the roll and stop the machine. One of the paper strips bears a series of marks (20) which, as they pass through the cell (21), cause the pressing die mechanism (11) to operate. In addition, there is a rod (40) which separates the chopped meat end contiguous to the hamburger, and another rod (41) which, when it ascends due to an obstruction, touches a microswitch and stops the machine. The paper scraps left over are driven by a pneumatic system (35) to a container (37).

Abstract: In order to improve mixing efficiency of highly viscous fluid, while structural simplicity being maintained, two types of stirring impellers are employed in a single stirring apparatus. One of such stirring impellers is a large flat impeller and the other is a slanted or screw-shaped impeller to cause an up-and-down flow. This principle is further utilized in a stirring tower type polymerization reaction apparatus which has an array of mixing areas, each of which corresponds to the stirring apparatus above, and partitions between the mixing areas. The partitions are disposed so that the temperature of reaction can be controlled easily. Undesirable effects such as "dead space", space in which flow is insufficient, and the attachment of gelled material to the rotational shaft can be avoided while rather obvious, but no less important, advantages of efficient and uniform mixing, etc., are secured.

Abstract: A carbon brush for miniature motors comprising a stator using a permanent magnet as the field, and a rotor on which a rotor winding is wound, and having a commutator for feeding current to the rotor winding and brushes, formed by bonding graphite powder, for making sliding contact with the commutator; the brush being a metal-plated graphite brush formed by adding 0.1 wt. % to 12.0 wt. % of a fibrous material of particle sizes less than 40 microns and lengths less than 50 microns to metal-plated graphite powder formed by coating graphite powder with a metallic layer, and pressure-forming and sintering a mixture of the metal-plated graphite powder and the fibrous material; the graphite powder containing less than 0.05 wt. % of ashes, and the method of making the same.

Abstract: A device and method for applying a flexible layer to rollers, as used in graphics machines, such as printing presses or coating machines, whose roller bodies consist of a carrying tube (3). A tubular, flexible body (14) is provided which is pushed over a support tube (1) that is axially connected to a transition piece (2) and a carrying tube (3). In the area of the transition piece (2), compressed air is admitted and is discharged at a discharge force, to generate an air cushion (15) between the tubular, flexible body (14) and the carrying tube (3), over which the tubular, flexible body (14) is pushed.

Abstract: A method and a equipment for processing of particularly finely divided material. The material is fed by means of a mechanical feeder device (2) and a pressurized equalization tank (4) into a fluidization chamber (5). A fluidized gas-solids suspension received is accelerated through acceleration nozzles (20) into a grinding chamber of a counter-jet grinder (19) so as to grind the solid particles. The ground gas-solids suspension is passed through connecting pipe (7) into a centrifugal classifier (8). A fine fraction is removed as a gas suspension through an opening (9). Additional air of low pressure is passed into the connecting pipe (7) and the coarse fraction is removed from the centrifugal classifier through a removal opening (10) in the peripheral face of the classifier into a pocket (12) outside said peripheral face, whereby the coarse fraction in the pocket (12) is removed batchwise by means of a closing device (13).

Abstract: The elastic sliding bearing for chassis parts in motor vehicles includes of a rigid inner bushing (1) and an outer bushing (2) surrounded by an elastomeric body (3). Both bushings have axial bearing surfaces (5, 6) on radially directed flange projections (4, 7) at an axially outer end, wherein a seal (11) surrounding the axial bearing surfaces (5, 6). The seal acts against the axially outer flange surface with at least one sealing lip (12). A disk (9), which is supported on one side surface by the sliding surface of the flange projection (4) on the inner bushing (1), is loosely inserted between a sliding surface forming the axial bearing surface (5) on the flange projection (4) of the inner bushing (1) and the elastomeric body (3) surrounding the outer bushing (2).

Abstract: The present invention describes a device for moving rollers and in particular rollers of a printing press in two independent directions. Movement in each direction is independent of movement in the other direction. The roller has trunnions which are mounted in roller locks. The roller locks are then mounted on a frame of the printing press. Mechanisms inside the roller lock position the roller lock in one direction with respect to the frame and other mechanisms inside the roller lock position the roller in another direction with respect to the roller lock. This mechanisms are independently controlled and movement of one mechanism is independent of the movement of the other mechanism. By independently controlling these mechanisms the roller can be engaged, disengaged and adjusted with respect to the frame or any components mounted on the frame.