Abstract: A coupling mechanism for the interconnection of sealing plates. Symmetrical coupling halves of the sealing plates are interconnected and welded together to form a hollow space that can be checked. Each coupling half has a free edge that is provided with a C-shaped profiled connecting part. That edge of the coupling half where it is attached to a sealing plate is provided with a notch-like part that is symmetrical to the C-shaped connecting part. A sealing strip projects into the hollow space from the transition area between the notch-like part and the adjoining wall. This sealing strip can be welded to the transition area of the cooperating coupling half between the C-shaped connecting part and the adjoining wall thereof.

Abstract: An axial sealing system of a rotary piston engine with a triangular piston and a dual-arc casing runway surfacing with which a seal body arranged in axial groove or groove bore cooperating sealingly after each axial sealing strip at a preceding end thereof for sealing therewith and the preceding sealing plug under gas pressure from the working or operating chamber. The sealing body is a second sealing plug cut into by the sealing strip and the first sealing plug. Also this can be a sealing strip segment having a configuration that fits with respect to the cutout of the sealing strip and the first sealing plug.

Abstract: A reflector for photographic sources of light, whereby an umbrella-like frame that includes struts can be placed on a mounting for a light source. A connection element is provided on the ends of the struts. A flexible reflector sheathing is disposed on the frame and has a light-discharge opening remote from the mounting. The light-discharge opening has an edge region therearound. A closure member is provided along the edge region of the light-discharge opening, with this closure member being adapted to cooperate with the connection element to provide a detachable connection of the reflector sheathing to the frame.

Abstract: An enclosure frame that is to be placed in a wall opening for a door or the like. The frame comprises a liner that is disposed in the wall opening, and at least one casting that is disposed on an edge of the liner, extends at right angles to the latter, and is also disposed on a wall surface. For mounting an edge strip, that end of the casing remote from the liner is provided with a retaining strip. The latter has a mounting leg that rests on a wide side of the casing and is secured thereto. The retaining strip also has an insertion leg that extends from the casing at right angles to the wide side thereof. The edge strip has an inner side that faces the wall surface and is provided with a longitudinally extending, slot-like recess into which the insertion leg of the retaining strip can be introduced in a self-clamping manner. The edge strip also has a channel for receiving the mounting leg of the retaining strip and for covering the same from sight.

Abstract: A gas/liquid heat exchanger. Process gases leaving the heat-transfer elements of a heat-transfer-surface unit are guided through the displacement body that is associated with that unit. Feed water is introduced into the displacement body at the lower end thereof. After countercurrent heat-exchange flow relative to the process gas, the feed water is withdrawn from the upper end of the displacement body, and is introduced into a zone of downwardly flowing water.

Abstract: An apparatus for conveying bottles that each have an annular bead on the neck of the bottle. A conveyor line, which extends over the respectively desired conveying path, is provided with a bottle carrier that extends along the conveying path, extends below the bead on the neck of the bottle, and guides the bottles in a suspended state, via the beads, with play, through a guide slot that extends along the conveying path. The conveyer line is also provided with mechanisms for providing the bottles with a feed movement for conveying the latter. To provide a considerably more uniform conveying speed, avoid bottles striking one another, reduce the consumption of energy, and reduce manufacturing expenses, the mechanisms provide the feed movement parallel to the guide slot for the bottle necks, with the guide slot being formed on the bottle carrier. The mechanisms are provided with at least one mechanically movable driving element that mechanically engages the bottles that are to be conveyed.

Abstract: A self-locking belt reel-in mechanism, especially for the safety belts of motor vehicles. The mechanism includes a belt-winding spindle that is mounted in a housing and is loaded by a rewinding spring. The spindle includes a spindle core and a spindle body, at each end of which are disposed two locking members that operate radially between an inner position and an outer position, are adapted to be surrounded by stops on the housing, and bring about a symmetrical quadruple locking. The locking members are coupled by connecting rods that are parallel to the central axis of the spindle, are disposed within the cross-sectional area of the spindle, and rotate with the latter. When self-locking is initiated via a system that is sensitive to movement of the belt and/or vehicle, the locking members mesh with the housing stops. The connecting rods have ends on which are integrally connected the locking members, which enclose the spindle core symmetrically relative to the respective connecting rod.

Abstract: A device for controlling the flow rate of a fuel gas/air mixture, and/or the ratio between the fuel gas and air in such a mixture. The device includes a body having an air inlet, a fuel gas inlet, a fuel gas/air mixture outlet, a gas-control passage in the body, with the cross-sectional area of the gas-control passage being variable via a control device for controlling the flow of fuel gas through the device, and an adjustable air-control passage for adjusting the flow of air through the device. The air-control and gas-control passages are configured and disposed in the body in such a way that they cooperate to also form an area within the body where said controlled fuel gas and air flows are combined and mixed.

Abstract: A fluid cooling system of a rotary piston internal combustion engine of trochoidal type of construction having a housing with one or more trochoidal shaped inner surfaces and having side plates with an eccentric shaft passing therethrough. A triangular piston is mounted upon an eccentric secured to the eccentric shaft and has corners of the triangular piston revolving to have corners of the triangular piston continuously engaged with the inner surfacing and furthermore having the eccentric shaft constructed hollow for cooling of the eccentric bearings and having cooling medium flowing via a by-pass conduit of the main cooling circuit circulation.

Abstract: A guide chain for carrying lines that supply all types of expendable material from a fixed connection to a movable consuming device. In order to provide the guide chain with a periphery that is as completely closed as possible and has as smooth a surface as possible, and in order to be able to assemble the individual parts in a straightforward manner, two basic variants are proposed. In one variant, recesses are provided in the side pieces and are respectively concentric to a pivot axis between that side piece and an adjacent side piece, with externally circular cylindrical cover elements being inserted in the recesses to cover horizontal gaps between adjacent chain links. Caps are provided to connect adjacent side pieces, with each cap having a concentric rim that extends into the recesses and grooves that interconnect the latter. Each cap also has projecting members that are disposed between stops of adjacent chain links. These projecting members limit the maximum pivot angle of adjacent chain links.

Abstract: A bridging device for docks. A lifting cylinder is provided for raising a bridge plate, in which is mounted an extension that can be retracted or extended via a feed cylinder. A hydraulic arrangement is associated with the bridging device, and includes a reversible pump. A relief valve that can be hydraulically closed is provided in the return line from the lifting cylinder. The actuating connection of this relief valve is connected to the feed lines for the feed cylinder.

Abstract: A method and apparatus for deburring the inner edge of the bore of a workpiece. A tool is introduced into the bore, is rotated at high speed, and has a wobbling movement imparted thereto. Alternatively, the tool can be rotated while a wobbling movement is imparted to the workpiece. The tool is embodied as a grinding rod which is held by a grinder unit which is drivingly connected with an eccentric drive. The grinder unit is preferably pivotable in all directions. During operation, the tool or the workpiece describes, in the bore of the workpiece, a wobbling movement having a circular path which is concentric to the axis of the bore, and having a diameter which increases in the direction toward the free end of the bore. The burr which is to be worked is thus very precisely removed in a simple manner without the danger that the burr is moved into the bore. Furthermore, the tool is embodied in a simple manner, so that it has a long service life.

Abstract: An article having a changeable-expression face. The article includes a facing plate and facial components, such as a mouth, nose, and eyes, that are rotatably mounted on the facing plate. A securing part of the facial components extends through the facing plate and is secured on the back side of the latter by a fastening mechanism. A backing plate is secured to the back of the facing plate to cover the securing parts and fastening mechanisms.

Abstract: A bearing arrangement of an external axial rotary piston blower for gaseous medium having a housing which consists of an interior runway surface and two side parts through which shafts project upon which pistons rotating therewith form working chambers. The shafts of these pistons have ball bearings with lip, flap or face seals for sealing-off of gas pressure in the working chambers as well as externally of these bearings having transmission gears journalled with respect to the side parts. Bearing necks or collars are formed and provided with the ball bearings for the shafts of the pistons and these annular grooves are open extending radially outwardly. Groove walls on the transmission side along with inner edges of the gear rings of the gears of the transmission form an annular gap of closest narrow tolerance. A further annular gap can be provided between the bores for the shafts and the bearing necks and the hubs of the gears of the transmission.

Abstract: An inner seal of a rotary piston engine has a U-shaped base body with legs running along the adjoining housing sidewall. During movement of the piston, the oil adhering along the housing sidewall is conveyed in an opening in the housing sidewall concentric to an eccentric shaft. The inner seal has a plurality of sealing laminations that are arranged along an inner base surface thereof and that are located with a scraper edge forming an acute abutting angle along the housing sidewall counter to direction of rotation. The angle of the scraper edge located in the plane of the housing sidewall equals respectively is smaller than that of the tangent along the rising branch of the trochoidal path, course or runway described by an inner corner of the scraper edge upon the housing sidewall relative to a radius of the inner seal intersecting this corner.

Abstract: A resilient shaft coupling having two metal parts that include an inner coupling ring and, coaxial thereto, an outer coupling ring. The facing generated surfaces of the rings are formed with a number of substantially radial cams or dogs which mesh with one another alternately in the circumferential direction and extend to near the pertaining opposite generated surface. Each two circumferentially consecutive cams or dogs form a pair whose adjacent surfaces are concave and delimit a chamber whose longitudinal axis extends parallel to the rotational axis of the coupling, and in which a resilient coupling member is disposed. The coupling members are radially biased or pre-loaded by a predetermined amount, and are secured to the generated surfaces of the inner and outer ring coupling rings. With the coupling in its rest position, gaps or spaces are present between each resilient coupling member and each cam or dog, and permit the members to deform freely and thus to be stressed in shear.

Abstract: A vehicle wheel on which can be mounted a pneumatic tire which essentially includes rubber or rubber-like synthetic material, and has a carcass with load-carrying cords which are anchored in the bead regions of the tire via inextensible core rings. The wheel has a rigid rim with laterally outwardly disposed rim flanges; disposed axially inwardly of these rim flanges on the radially outer side of the rim are seating surfaces for the tire. To minimize disrupting effects on the tire tread, while at the same time improving the emergency operating conditions, a support member is disposed axially inwardly of the seating surfaces on the rim. This support member has a diameter which is greater than the diameter formed by the rim flanges. In the region of a given rim flange, the tire wall extends laterally outwardly from a given core ring in a substantially flat manner, and in particular in an angular range of from 0.degree. to 20.degree. relative to the axis of rotation of the tire.

Abstract: A packing or unpacking machine having conveyor tracks for articles and containers, with transfer units that are guided in a circular path above these conveyer tracks. Each of the transfer units has a pick-up and carrier head on a support element that can be raised and lowered. A movement mechanism is provided for generating a relative movement for the pick-up and carrier heads relative to the support elements, with this relative movement being superimposed over the rotational movement of the support elements, so that during respective rotation of the support elements, which follow the circular path, the pick-up and carrier heads are moved in a common elliptical or elliptical-like overall path of revolution. In so doing, the respective pick-up and carrier heads are moved about a vertical axis such that a constant parallel position is maintained relative to the conveyer tracks.

Abstract: A vibratory roller having four drums that can be vibrated. The drums are driven individually, and are mounted in pairs in respective supports. One of the supports is attached to a front frame, and the other support is attached to a rear frame. The object of the invention is to improve the steering condition of vibratory rollers, and especially of trench rollers, in such a way that on the one hand changes in direction during normal travel, or small corrections in direction, can be rapidly undertaken without damaging the already compacted surface of the ground, and that on the other hand it is also possible to make sharp changes in direction practically on the spot. Previously known types of steering for vibratory rollers, namely fifth-wheel steering, transfer steering, articulated steering, and panzer steering, do not permit such a diversified steering condition. Pursuant to the invention, the desired steering condition is achieved by interconnecting the front and rear frames via a hinged or swivel coupling.

Abstract: A wheel of synthetic material and method of making same for vehicles, such as a steering wheel for motor vehicles, such as a wheel for bicycles and the like and, for example for other applications including single-track vehicles. The wheel includes a rim, a plurality of spokes, and a hub, and is made in one piece by injection molding at the hub. Between each two adjacent spokes, the rim has a wall element which extends in the circumferential direction of the rim, extends from the connection location of each spoke on the rim to the middle of the rim portion between two spokes, and is rheologically designed as a preliminary flow cross-sectional area such that preliminary flows of the synthetic material enter the wall element from both spokes and flow more quickly from the two spoke connection locations to the middle of the rim portion than the two circumferential flows of synthetic material which advance in the remaining rim walls.