baber/WOPTO huggingface dataset:
Patent DE-3710341-A1 (DE)
Title: Transfer cylinder in printing machines
Inventor: PIEPER STEFFEN
IPC: B41F21/10
Filed: 1987-03-28
Abstract: The invention relates to a transfer cylinder in printing machines, having a gripper device which is arranged in the cylinder gap and grips the leading edge of the sheets, and having means which act on the cylinder casing and are intended to cause the sheets to rest against said cylinder casing. The object of the invention is to provide a transfer cylinder in which precise resting of the sheet on the cylinder casing is achieved by means of suction air without any conversion action within the entire format range of a printing machine. According to the invention, the object is achieved in that air nozzles which can be pressurised with suction air are arranged within the region which can be covered by the minimum sheet format, and open out into grooves which each run in the shape of an arrow at the apex and extend within the region which can be covered by the minimum sheet format. One groove is provided in the direct vicinity of and parallel to the gripper pad strip. The apices lie at least within the area formed by the grooves located above them and running in an arrow shape. The air nozzles can be pressurised alternately by suction and compressed air and are covered by screens in the plane of the casing (Figure 3). <IMAGE>
Patent DE-3712330-A1 (DE)
Inventor: BAUR RICHARD DR
IPC: C07C255/18
Filed: 1987-04-11
Abstract: 2-Hydroxy-3-aminopropionic-N,N-diacetic acid and derivatives thereof are used in particular as complexing agents, bleaching agent stabilizers and builders in detergents.
Patent DE-3712437-A1 (DE)
Inventor: GELAIN SILVANO
IPC: B05B16/40
Filed: 1987-04-11
Abstract: A generally rectangularly shaped powder coating booth of a powder spraying apparatus is fomed of two main sections, each of which is constituted of wall and roof elements which are swingably interconnected to one another. The walls and roof of each half of the booth may be straightened out to form a flat, continuous and rectangularly shaped surface from which residues of powder may be removed easily and rapidly. Thus when the two halves of the booth are flattened out the booth is transformed into two parallel and spaced surfaces which can be cleaned by being vacuumed by a respective suction nozzle that is disposed to travel over and vacuum the surfaces automatically.
Patent DE-3712491-A1 (DE)
Title: Microfiltration membrane, process for the production thereof and use thereof
Inventor: NOMURA HIROSHI
IPC: B01D65/10
Filed: 1987-04-13
Abstract: A hydrophobic, microporous microfiltration membrane substrate is treated with a nonpolymerisable plasma gas in order to generate a permanently hydrophilic surface. While the treated microfiltration membrane receives as a result a permanently hydrophilic surface, the body of the substrate retains the original properties of the substrate such as pore size, hydrophobicity, mechanical strength and chemical resistance. Two different processes of plasma treatment are disclosed. The membranes have an effective pore size of about 0.1  mu m or less for separating off particles or colloids from aqueous solutions. Hollow fibre membranes can be used in separation modules which are useful for various separation operations, such as the cultivation, separation or concentration of plant or microbial cells.
Patent DE-3715318-A1 (DE)
Title: Waveguide output element
Inventor: SOLBACH KLAUS DR ING
IPC: H01P5/18
Filed: 1987-05-08
Abstract: In the case of the coaxial connection of an aerial element, especially of an individual aerial of an antenna array having reciprocal phase shifters, to a waveguide series supply, the interfering influence of reflected waves produced by incorrect matching of the aerial element can be suppressed if the output element has two coupling probes which are arranged one behind the other at a distance of one quarter of a wavelength in the waveguide, and the two output power components are combined in a summation circuit in the manner of a 90@ 3 dB coupler. Any reflected waves which occur are absorbed at the port (which is terminated in a reflection-free manner) of the summation circuit. The summation circuit is preferably designed using stripline technology and, in the case of an antenna array having phase shifters which are likewise designed using stripline technology, the summing circuits can be arranged on the same substrate as the phase-shifter circuits.
Patent DE-3715607-A1 (DE)
Title: Piston seal and arrangement for pneumatic working cylinder and piston-rod guides
Inventor: SCHNEIDER GOTTFRIED PROF DR SC
IPC: F16J15/3232
Filed: 1987-05-10
Abstract: The invention can be used not only in the area of high-pressure pneumatics in the pressure range from p = 0.4 Mpa, but also for a large number of fluidic media. It can, however, be used advantageously in particular where low wear, freedom from maintenance and oil spray as well as high reliability of working cylinders are required. It can be used for a large number of lip seals and similar seals in unilateral sealing. It is therefore the aim of the invention to make possible low-maintenance operation and high performance with low outlay for manufacturers and users. This is achieved by the lip seals facing one another with their lips and by a distance ring, a disc and a fastening screw being arranged on a piston rod in a working cylinder. A slide guide can also be arranged between the lip seals. The lip seals can be arranged compactly in a tandem-like manner and in numerous pairs. The lip seals with the lips facing one another can also consist of one piece as a seal with a slide guide and be rigidly connected to a support disc, it also being possible for the sealing lips to have angles of inclination which differ from one another.
Patent DE-3716721-A1 (DE)
Title: Bunghole seal for large beer cans
IPC: B67D3/00
Filed: 1987-05-19
Abstract: In order to seal up the openings of large beer cans, a bunghole seal has been devised which is composed of a rubber bung having a cylindrical axial through bore which is provided with a plastic bung which can be pushed inwards and the inserted sealing shaft of which is also cylindrical.
Patent DE-3716814-A1 (DE)
Title: Device for temperature compensation of semiconductor switches for rotation-speed stabilisation
Inventor: GEIGER PETER
IPC: H02P7/295
Filed: 1987-05-20
Abstract: In the case of a device for temperature compensation of semiconductor switches which are used especially for rotation-speed stabilisation as part of a phase-gating circuit (half-wave regulator) for driving electric motors, it is proposed to move a temperature-dependent NTC thermistor into thermally good coupling with the thyristor by arranging at least one of the connecting legs of said NTC thermistor such that it is directly adjacent to, and is preferably connected by means of a common solder point, to at least one of the connecting legs of the thyristor, the electrical connection of the NTC thermistor to the thyristor forming the semiconductor switch at the same time producing electrical temperature compensation for its temperature response.
Patent DE-3716890-A1 (DE)
Title: Tool kit and its use for carpet-making, especially for the knotting of carpets with advertising and gift motifs
Inventor: DOGAN MEVLUT
IPC: G09F23/00
Filed: 1987-05-20
Abstract: This tool kit serves mainly for making carpet motifs for advertising and smaller gifts. The tool kit consists of a frame mount for making the carpet underlay and of a frame mount for knotting the upper lay with the corresponding motifs. The threads of the underlay are introduced in the form of a figure eight in the frame and are stretched to the length and width of the carpet, whilst the knotting of the upper layer takes place in the second frame. This second frame can be designed at the same time as a stand for the display of the knotted carpet motif. Tension is generated by rotatable crossbars of the frames, whilst the strength of the knotting is achieved by means of a beater.
Patent DE-3727120-A1 (DE)
Title: Key case for one-handed use
Inventor: BERGMANN DIRK DIPL ING
IPC: A45C11/32
Filed: 1987-08-14
Abstract: Previously known key cases require the assistance of both hands for inserting and/or removing the bunch of keys. In contrast, the new case is to be able to be used reliably with only one hand. The keys (5) are attached by a key ring (4) and a flexible connection element (3) to a receptacle (2) in such a way that introducing and protruding the vertically hanging keys (5) is possible by means of simply pivoting the receptacle (2) in the direction of the double arrow (23). The passage opening (16) is formed by simultaneous pressure on the adjacent side edges (13, 14). The key case for one-handed use is suitable, if appropriately dimensioned, as a receptacle for keys of any type. <IMAGE>
Patent DE-3730367-A1 (DE)
Inventor: BAUKLOH ACHIM DR
IPC: B24C3/32
Filed: 1987-09-10
Abstract: The corrosion damage, particularly that due to local pitting, which occurs on hard-drawn copper tubes used in the sanitary sector is generally caused by carbon-containing films but also by oxide films. A carbon film on the inside of the tube is formed, for example, if the drawing compound added when drawing the tube is subjected to excessive heat. To avoid these damaging films and to improve the pitting resistance of hard tubes made of copper or copper-based alloys, the tubes are first of all degreased. In a further process step, the inner surface of the tubes is then treated with a blasting abrasive in order to establish a minimum roughness. A mean roughness of 0.8 to 1.0  mu m has proven particularly advantageous. The hard-drawn tubes treated by the method according to the invention have none of the films which promote pitting, even after brazing and/or hot bending.
Patent DE-3735178-A1 (DE)
Title: Spark erosion machine
Inventor: DIETZ VOLKER
IPC: B23Q7/10
Filed: 1987-10-17
Abstract: Method and device for feeding in and clamping workpiece pallets on a spark erosion (electrical discharge) machine, with a work table lying on the machine bed. From a workholding station that can adjoin the work table, a workpiece pallet lying ready on its transfer plane is shifted onto the work table until it thereby comes into contact with contact studs aligned on the x and y axes. Next, the extension upwards of stops and vertical workholding fixtures is triggered from the work table, whereupon high pressure is applied to the contact studs, so that they press the workpiece pallet against the extended stops. The vertical workholding fixtures then engage in corresponding recesses on the bottoms of the workpiece pallets, drawing them downwards onto the work table with a large clamping force and maintaining the clamping force for the duration of machining.
Patent DE-3735238-A1 (DE)
Title: Antilock hydraulic brake system
Inventor: REINARTZ HANS-DIETER
IPC: B60T8/44
Filed: 1987-10-17
Abstract: An antilock hydraulic brake system is demonstrated, which comprises a brake pressure transmitter (1) and a pump assembly (21, 21'). During slip control, the pump (21, 21') delivers into the brake master cylinder (2) by way of a restricted cross-section (80, 80'). The pedal return is therefore damped. Non-return valves (81, 81'), which allow the restricted cross-sections to be bypassed in non-slip controlled braking, are connected parallel to the restricted cross-section. In a further embodiment of the concept of the invention, it is proposed to develop the restricted cross-section into a flow control valve. <IMAGE>
Patent DE-3739483-A1 (DE)
Title: Gate valve
Inventor: HOPF KLAUS DIETER DIPL ING
IPC: F16K3/12
Filed: 1987-11-21
Abstract: In a gate valve with a housing (1) having openings (2, 3) on opposite sides for the connection of a pipe conduit and with a closure element (11) which can be moved transversely between the openings (2, 3), is made up of two wedge plates (9, 10) and can be brought down on valve seats (5, 6) at the inner edges of the openings (2, 3), the valve seats (5, 6) and the wedge plates (9, 10) each carry an annular sealing element (12, 13, 16, 17) which forms the seating surface, is composed of a ceramic material and is supported against the housing (1) and against the wedge plates (9, 10) respectively via a deformable sealing ring. <IMAGE>
Patent DE-3741257-A1 (DE)
Title: Gripping apparatus, in particular for lying nested stacks of plastic beakers
IPC: B65G47/90
Filed: 1987-12-05
Abstract: The gripping apparatus (10) for lying nested stacks (11) of round parts, in particular plastic beakers, has a holder part (14) which is adapted to the curvature of the round bar (11) and is fastened on a slide (15) which can be displaced in a guide groove (18) between a gripping position and a release position. In the case of its movement into the gripping position, the holder part (14) is displaced so far on the circumference of the nested stack (11) that it engages under the nested stack (11) with an end region (14.1), the nested stack being held in a form-fitted manner between the holder part (14) and an immovable bearing part (13). The holder part (14) can be subdivided into a plurality of separate gripping fingers. The gripping apparatus can also have jointly displaceable holder parts for simultaneously grasping a plurality of nested stacks situated adjacent to one another. <IMAGE>
Patent DE-3742665-A1 (DE)
Title: Safety lock
Inventor: KERKHOVEN RENE
IPC: E05B65/00
Filed: 1987-12-16
Abstract: Safety lock for securing doors, flaps or lids, which comprises, on the one hand, a flexible latching pin provided with a widened portion and, on the other hand, a rib behind which the widened portion of the latching pin can hook in, characterised in that the rib is located within a quiver, at a certain distance from the open ends of the said quiver and level with an opening in the quiver, and in that the safety lock comprises one or more latching pins with corresponding quivers with a rib. <IMAGE>
Patent DE-3742782-A1 (DE)
Title: Pressure-medium gripper for spring-band clamps
Inventor: KRETZSCHMAR MICHAEL DR
IPC: B25B7/12
Filed: 1987-12-17
Abstract: A pressure-medium gripper for spring-band clamps has a valve-controlled pressure-medium connection and at least one drive piston (10), designed as a stepped piston, with pressure-medium transmission for an advancing member for inner lever ends of pivotably mounted gripper insert halves. The advancing member is designed as a sliding block (29) conical in the spreading direction of the gripper insert halves and forms a detachably arranged support for a guidance of the inner ends (31, 32) of the gripper insert halves (33, 34). In this case, the bearing arrangement of the gripper insert halves (33, 34) can also be replaceable together with the sliding block (29). <IMAGE>
Patent DE-3742897-A1 (DE)
Title: Circuit for gating out bits
Inventor: BURGHARDT HARTMUT DR
IPC: H04L25/40
Filed: 1987-12-17
Abstract: To gate out individual bits of a digital signal, two bistable D-type flip flops (DK1, DK2) are provided, to the clock input (C) of which the non-inverted and, respectively, inverted digital signal (d;/d) is in each case applied via a delay section (V1, V2) having a delay time of between once and twice the bit duration,   - the Q outputs of which bistable D-type flip flops lead to the in each case one input of an AND gate (UG1 and, respectively, UG2), to the other input of which the non-inverted and, respectively, inverted digital signal (d and, respectively, /d) is applied which is delayed by the said delay time plus an additional delay time corresponding to the signal transit time in the bistable flip flop (DK1 and, respectively, DK2), and - the complementary outputs (/Q) of which bistable D-type flip flops lead to the in each case one input of an AND gate (U1 and, respectively, U2), to the other input of which the inverted and, respectively, non-inverted digital signal (/d and, respectively, d) is applied and which leads at the output end to the D input of the in each case other bistable flip flop (DK2, and respectively, DK1), the outputs of the two first-mentioned AND gates (UG1, UG2) being combined via an OR gate (OG), the output of which forms the output (down) of the circuit for gating out bits. The output of the circuit for gating out bits is connected to an edge-controlled further bistable flip flop, the output of which is connected to the reset inputs of all bistable flip flops. <IMAGE>
Patent DE-3800455-A1 (DE)
Inventor: FABER GUENTHER
IPC: F42B3/16
Filed: 1988-01-09
Abstract: Where layered ignition elements with long delay times are concerned, malfunctions occur above all when aggravating secondary conditions (such as, for example, a high projectile rotation and/or temperature and shock stresses) are additionally involved. The reliable progress of the reaction is assisted if, as seen in the direction of propagation of the reaction, the middle region of the charge (8) igniting the delayed-action composition (3) projects into the middle region of the delayed-action composition (3). A further improvement can be achieved if, instead of an ignition charge (2), one or more transmission charges (7, 8) are interposed and the selection of the charge components is made in such a way that the jumps of the property values (especially as regards the reaction speed) become more uniform and therefore smaller, or an ignition charge having an especially low reaction speed is used. 
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Patent DE-3803334-A1 (DE)
Title: Device for transferring a row of pieces of dough in a system for producing pastries to a plurality of rows
IPC: A21C9/08
Filed: 1988-02-04
Abstract: A device is used for transferring a row of pieces of dough in a system for producing pastries to a plurality of rows. In order to produce such a device, there is provided a feeding conveyor belt for feeding the pieces of dough in a row. A flap (51) is arranged beneath the end of the feeding conveyor belt and can be pivoted about an essentially horizontal axis (52). The flap (51) can be made to adopt at least two positions by means of an actuating element (30), so that the pieces of dough falling down onto the flap (51) leave the flap at at least two different points (Figure 1). <IMAGE>
Patent DE-3810051-A1 (DE)
Title: Electrical flow-type heater having PTC heating elements
Inventor: HILLINGER ERICH
IPC: H05B3/14
Filed: 1988-03-25
Abstract: Electrical flow-type heaters which are fitted with PTC heating elements have to exhibit, on the one hand, a particularly good electrical insulation of the PTC elements with respect to the flow channel(s); it is, on the other hand, equally important that the heat which is generated in the heating element is fully dissipated to the medium to be heated, not least because the desired self-regulating effect can be achieved only in this way. According to the present invention it is proposed to provide as flow channel two profiled tube parts which in cross-section have the shape of a semicircular ring and whose longitudinal axis is angled twice, in such a manner that said parts, when their flat sides are placed against each other, form an interspace extending in the longitudinal direction for the accommodation of a construction which comprises the PTC elements and the current vails, which are assigned thereto, and is surrounded by an insulating film. <IMAGE>
Patent DE-3813140-A1 (DE)
Title: Valve-block assembly
Inventor: SCHUETZEICHEL WINFRIED
IPC: B60T8/36
Filed: 1988-04-20
Abstract: A description is given of a valve block assembly for an anti-lock system for motor vehicles. The assembly consists of the actual valve block (20) and of a cover (14). The cover is made of plastic, into which conductor tracks are moulded. The conductor tracks are part of a stamping (13). The placement of the cover (14) on the valve block (20) establishes all the contacts between the pins (18) of the coils of the solenoid valves (19), on the one hand, and the raised ends (15) of the stamping (13), on the other hand. Among other benefits, the invention considerably simplifies assembly. <IMAGE>
Patent DE-3813482-A1 (DE)
IPC: H01S3/23
Filed: 1988-04-21
Abstract: A device for generating laser pulses of a variable duration comprises a resonator in which are arranged a first continuously pumped neodymium-YAG crystal and a switchable optical seal which functions as a Q-switch. To increase the pulse power in the beam path of the continuous-wave neodymium-YAG laser, a second neodymium-YAG crystal, which is pumped in pulses, is arranged after the resonator and outside the seal.
Patent DE-3816188-A1 (DE)
Inventor: FERNANDEZ LUIS
IPC: B29C47/70
Filed: 1988-05-11
Abstract: To counteract in particular the occurrence of acetaldehyde on a hot runner (20) for the manufacture of preforms from a PET material, the material advanced in channels (26) is subjected to an additional vortexing. For this purpose, the channels (26) have inserted in them a component (32), preferably of metal, which is provided with radial sets of spokes (14a), which are offset in each case azimuthally with respect to one another in the axial direction. Along with the vortexing mentioned, these sets of spokes also act as homogenising elements for the temperature distribution in the flow cross-section of the material advanced in the channels. <IMAGE>
Patent DE-3818171-A1 (DE)
Title: Demountable boat
Inventor: RIEHLE HANS-MARTIN
IPC: B63B7/04
Filed: 1988-05-28
Abstract: The demountable boat is designed in particular for the boat enthusiast travelling alone, to whom thus far no boat of monocoque construction, which can be carried in a dismantled state on the back and is easy to assemble, has been available. The new boat offers all these properties as it consists of four completely identical sections. The sections are fixed together by tubes and sealed and held together with watertight adhesive tape. In order to be able to carry the boat on the back and at the same time use it as a rucksack, the sections are fixed together on the longitudinal sides, and then a container is produced which is open at the top and in which further baggage can be stowed. For transport in a car boot or in a railway compartment, the boat can be demounted into all four sections. As the four sections are completely identical and also symmetrical in themselves, on the one hand they can be stacked and on the other hand only one single mould is required for production, as a result of which manufacturing can be carried out economically. <IMAGE>
Patent DE-3818361-A1 (DE)
Title: Functional housing
Inventor: OHRNBERGER VOLKER DIPL ING
IPC: B23Q1/00
Filed: 1988-05-30
Abstract: A description is given of a machine housing, in particular a circular-table housing, which has a high thermal stability and good damping values and consists of reaction resin concrete.
Patent DE-3822286-A1 (DE)
Inventor: HINZ MANFRED
IPC: E05B63/20
Filed: 1988-07-01
Abstract: A fastener released upon closing a door is equipped with a lock case (4) which has a lock cover (3) with a passage orifice (3'') provided in it for the bolt (2) spring-loaded in the direction of its extended locking position and in which is accommodated a spring-loaded clamping plate (6) engaging round the bolt (2) by means of a clamping lug (6'') and making it possible to block it in any insertion positions. Furthermore, there is a latch (5) under spring force which likewise passes through the lock cover (3) and which is pressed in when it strikes the door frame and thereby pivots the clamping plate (6) into its release position freeing the bolt (2). To achieve a simple and easily mountable compact design, the latch (5) is equipped with a cavity (5') which extends continuously in its direction of displacement and through which the bolt (2) is to be inserted. Advantageously, the lock case (4) and the latch (5) are hollow-cylindrical and, together with the correspondingly annular clamping plate (6) and a compression spring (7) loading it, are arranged concentrically relative to the bolt (2) to be inserted centrally through all of them. <IMAGE>