Abstract: Safety system for a printing machine having at least one machine drive, a brake device and an electronic control system therefor. The electronic control system has power control stages which permit electronic braking of the drive assembly, and a monitoring circuit, to which can be fed nominal and actual values of the speed of the drive assembly, and which actuate the brake device in the case of impermissibly high deviation between a nominal value and an actual value. Accelerations and decelerations necessary in the operation of the printing machine are achieved by suitable control of the respective machine drive.

Abstract: A housing assembly of a sliding closure unit for controlling the discharge of molten metal from a metallurgical vessel includes a housing member mounted on the metallurgical vessel adjacent an outlet thereof, and a cover member mounted on the housing member by joints to enable the cover member to pivot with respect to the housing member and to be removable therefrom. The joints include joint bases on at least four sides of each of the housing and cover members and including, for each of the housing and cover members, first and second oppositely spaced sides with the joint bases thereof defining parallel first and second joint axes, respectively, and third and fourth oppositely spaced sides with the joint bases thereof defining parallel third and fourth axes, respectively. The joint bases on each side of the cover member face joint bases of a respective side of the housing member.

Abstract: A program-controlled machine tool is described, for machining workpieces by means of rotary tools which can be brought into engagement with a workpiece under timewise control. The workpiece is disposed on a cross table which rests on a program-controlled rotatable workpiece table which in turn is guided along a first main axis. The tool support region has a vertical support post which bears on its top a translational carriage which is vertically adjustable and is movable in a direction perpendicular to the vertical. Such carriage further bears tool mounts. The mounts comprise a common revolving head the rotational axis of which coincides with the vertical movement axis of the said translational carriage. The revolving head has at least two program-controlled rotatable tool tables the rotational axes of which perpendicularly intersect the rotational axis of the revolving head in a single point. The rotatable tool tables are also program-controlled and bear holding members for various working units, e.g.

Abstract: A planetary gear transmission having four or five forward speeds and which comprises three planetary gear sets with clutches and brakes for speed selection. The planet carriers of the sets are connected together and positively connected to the output shaft, while the planet gearing for the first two gear sets utilizes a planet gear of the second gear set which extends axially over both the first and second gear sets and meshes with the internal and sun gears of the second gear set, and a planet gear on the common planet carrier which meshes only with the internal gear of the first gear set and with the planet gear of the second gear set.

Abstract: Apparatus for cutting and dividing a continuous stream of printed products, in which the paper sheet is folded by means of a longitudinal folding system and is then sheared to the format length, and in which the continuous stream of printed products is divided into two transport paths.

Abstract: Diarylguanidines can be isolated from the crude melt from the reaction of arylamines and cyanogen chloride in excellent quality and yield by dissolving the hot melt in water, extracting this solution with at least one polar, water-insoluble, organic compound, and precipitating from the purified aqueous solution the diarylguanidine by adding alkali metal hydroxide.

Abstract: A method of salvaging a pipe conduit which has a predetermined inner diameter and is buried under ground, especially a sewer pipe includes the steps of soaking a resin-absorbing inner layer of a lining hose which further includes an impermeable outer layer that outwardly adjoins and surrounds the inner layer and has an outer diameter which is slightly smaller than the inner diameter of the pipe conduit to be salvaged with an amount of a resin that exceeds that needed for saturating the inner layer. The outer layer is perforated to form a plurality of flow-through openings for the resin therein. The lining hose is subsequently introduced in its collapsed state into the pipe conduit.

Abstract: A dental-care composition having improved shelf life in respect of rheology and abrasiveness, which as a novel feature, contains, as a cleansing agent, a bifunctional (thickening and abrasive) precipitated silica characterized by the following physico-chemical properties:______________________________________ Pendulum roller mill Jet mill ______________________________________ BET surface area m.sup.2 /g 15-110 15-110 Tamped density g/l 150-750 90-650 Secondary particle size FIG. 1 FIG. 2 distribution according to Coulter Counter "ALPINE" screen % by <1.5 <0.1 retainings > 63 .mu.m weight Cu abrasion in 10% mg 5-30 5-30 strength glycerol disper- sion Lightness value A % 86-96 90-96 Viscosity in a 30% 30,000-60,000 30,000-60,000 strength dispersion in a 1:1 glycerol/water mixture, Brookfield RTV, Sp5 ______________________________________The dental-care composition may additionally contain 0.

Abstract: A steel with a carbon content of less than 0.3 percent by weight is used for steel-based components which are subjected to hot forming. A predominantly lower bainite structure is achieved by controlled cooling. The advantage is that components, such as truck steering knuckles, which are forged at temperatures of up to about 1300.degree. C., no longer need be subjected to annealing or tempering after cooling in order to possess good ductility in addition to high strength.

Abstract: A method of salvaging a pipe conduit which is buried under ground, especially a sewer pipe, includes soaking a resin-absorbing inner layer of a lining hose, which further includes an impermeable outer layer that outwardly adjoins and surrounds the inner layer, with a first resin. The lining hose is then placed into the pipe conduit. A surface region of a calibrating hose which is to contact the inner layer of the lining hose is provided with a layer containing a second resin. The lining hose is then shaped to conformingly line the pipe conduit. Such shaping involves introducing the calibrating hose into the lining hose in such a manner that the resin-containing layer of the calibrating hose contacts the inner layer of the lining hose and pressing the calibrating hose against the lining hose to urge the latter against the pipe conduit. Finally, at least one of the first and second resins is hardened.

Abstract: A cleaning cassette for the read/write heads of magnetic tape recorders is disclosed in which an interchangeable cleaning device 23 is mounted to a supporting member 16. This supporting member can be moved back and forth manually or by means of a driving force being internal to the cassette, such as a spring.

Abstract: A dental-care composition having improved shelf life in respect of rheology and abrasiveness, which, as a novel feature, contains, as a cleansing agent, a bifunctional (thickening and abrasive) precipitated silica characterized by the following physico-chemical properties:______________________________________ Pendulum roller mill Jet mill ______________________________________ BET surface area m.sup.2 /g 15-110 15-110 Tamped density g/1 150-750 90-650 Secondary particle size FIG. 1 FIG. 2 distribution according to Coulter Counter "ALPINE" screen % by <1.5 <0.1 retainings >63 .mu.m weight Cu abrasion in 10% mg 5-30 5-30 strength glycerol disper- sion Lightness value A % 86-96 90-96 Viscosity in a 30% 30,000-60,000 30,000-60,000 strength dispersion in a 1:1 glycerol/water mixture, Brookfield RTV, Sp5 ______________________________________The dental-care composition may additionally contain 0.

Abstract: A dental-care composition having improved shelf life in respect of rheology and abrasiveness, which, as a novel feature, contains, as a cleansing agent, a bifunctional (thickening and abrasive) precipitated silica characterized by the following physico-chemical properties:______________________________________ Pendulum roller mill Jet mill ______________________________________ BET surface area m.sup.2 /g 15-110 15-110 Tamped density g/l 150-750 90-650 Secondary particle size FIG. 1 FIG. 2 distribution according to Coulter Counter "ALPINE" screen % by <1.5 <0.1 retainings > 63 .mu.m weight Cu abrasion in 10% mg 5-30 5-30 strength glycerol disper- sion Lightness value A % 86-96 90-96 Viscosity in a 30% 30,000-60,000 30,000-60,000 strength dispersion in a 1:1 glycerol/water mixture, Brookfield RTV, Sp5 ______________________________________The dental-care composition may additionally contain 0.

Abstract: A perfect binder wherein a horizontal table defines an endless oval track for a series of articulately connected tongs each of which has a fixed jaw and a pivotable jaw. The pivotable jaws are articulately connected to discrete levers each of which is pivotable between a first end position in which the work-engaging portions of the jaws cooperate to clamp a stack of sheets between them, and a second end position in which the work-engaging portion of the pivotable jaw is remote from the work-engaging portion of the fixed jaw. Coil springs are provided to urge the levers to either of their end positions. A first fixed cam is provided along the track to pivot the levers to their operative positions before the freshly inserted stacks reach the first treating station, and a second cam is provided adjacent a further portion of the track to pivot the levers to the other end positions in which the treated stacks of sheets can be released or withdrawn.

Abstract: A two chamber engine mount with hydraulic damping includes rubber-elastic peripheral walls, a support housing disposed outside at least one of the walls, an orifice plate disposed between the walls defining upper and lower fluid-filled chambers above and below the orifice plate being substantially horizontally divided into an upper plate half being stationary and a lower plate half being rotatable and having a central axis, the orifice plate having an orifice canal formed at least partly in the lower plate half interconnecting the chambers and having a given open length and cross section, a centrally disposed pin integral with the lower plate half and extending through the support housing for rotating the lower plate half about the central axis relative to the upper plate half, varying at least one of the length and cross section of the canal.

Abstract: 1A two chamber engine mount with hydraulic damping includes a housing having rubber-elastic walls, an intermediate plate disposed in the housing between the walls dividing the housing into fluid-filled chambers, the intermediate plate having a substantially spiral-shaped canal formed therein interconnecting the chambers, the canal having a length being a multiple of the diameter thereof, and the intermediate plate having at least one orifice vertically formed therethrough being hydraulically parallel with the canal.

Abstract: A lightweight construction with sandwich elements consisting of core and covering surfaces may be produced in that high-strength hollow profiles are fixed to a molded frame at a spacing from each other, the remaining space around the hollow profiles is filled with a pressure-resistant casting compound which supports the profiles, and the top layers which determine the bending resistance of the elements are applied thereto. In this manner multidimensionally curved covering surfaces of unlimited size, such as the bodies of boats, can be economically produced.

Abstract: A dental-care composition having improved shelf life in respect of rheology and abrasiveness, which, as a novel feature, contains, as a cleansing agent, a bifunctional (thickening and abrasive) precipitated silica characterized by the following physico-chemical properties:______________________________________ Pendulum roller mill Jet mill ______________________________________ BET surface area m.sup.2 /g 15-110 15-110 Tamped density g/l 150-750 90-650 Secondary particle size FIG. 1 FIG. 2 distribution according to Coulter Counter "ALPINE" screen % by <1.5 <0.1 retainings > 63 .mu.m weight Cu abrasion in 10% mg 5-30 5-30 strength glycerol dispersion Lightness value A % 86-96 90-96 Viscosity in a 30% 30,000-60,000 30,000-60,000 strength dispersion in a 1:1 glycerol/water mixture, Brookfield RTV, Sp 5 ______________________________________The dental-care composition may additionally contain 0.

Abstract: The invention relates to a gluing apparatus which can be used in particular as part of a book casing-in machine. The gluing apparatus includes an application roller for applying a glue layer to a surface to be glued and a dosing roller for dosing the amount of glue. The application roller comprises an axis-parallel depression and the dosing roller comprises an axis-parallel projection engaging in the depression. The profile of the projection (20) of the dosing roller (2) merges from the cylindrical peripheral surface (4) via an involute into a coaxial cylindrical portion (22) of greater diameter while the profile of the depression (10) of the application roller (1) merges from the cylindrical peripheral surface (3) via a curve forming the counter profile to the involute of the projection (20) into a coaxial cylindrical portion (12) of smaller diameter.

Abstract: A method of screening half-tone picture themes, in which the gray tones of the half-tone picture theme are reproduced by changes in the structural width of a basic screen structure having any desired form. The assignment of a gray tone area of the half-tone picture theme to the screen structure width reproducing this gray tone area may be selectively determined. In a photographic version of the inventive method (FIG. 1), a basic screen structure 1 of any form is prepared and used to produce broadening screen structures as negative films 9,11. The same number of tone separations 20,22 is produced as negative films from the picture theme 13 to be screened, each of which tone separations reproduces a certain gray tone area of the half-tone picture theme which can be adjusted by the exposure time.