baber/WOPTO huggingface dataset:
Patent DE-4024505-A1 (DE)
Title: Dental training model of teeth - allows drilling to be carried out with contacts providing indication of accuracy
IPC: G09B23/28
Filed: 1990-08-02
Abstract: An irrigation and drainage system in the soil comprises a permeable tube (2). It is made of plastics foam with an inbuilt layer of fibre (3). The foam material incorporates fibrous particles (4) and the end sections (5,6) of the tube are impregnated with hardened synthetic resin. The tube is formed in a ring circuit, or alternatively one end of it in the soil is terminated in a plastics foam vessel with inbuilt fibrous particles, set deeper in the soil. USE/ADVANTAGE - Operates over a longer time with undiminished performance.
Patent DE-4032598-A1 (DE)
Title: Rubbers sepn. from solns. - by flowing soln. on heated surfaces and rollers in vacuum chamber, picking film off with doctor blades, compressing and discharging
Inventor: LINDEN BERND VON DER DR
IPC: B29B13/06
Filed: 1990-10-13
Abstract: Sepn. comprises evapn.  The initial liq. is spread out as a film on a heated surface where it flows out before stripping off.  When the material has dried off to pref. deg. and has formed a cohesive film it is stripped, picked up, compressed and drawn out of the vacuum chamber.  Pref. the vacuum chamber contains two drying rollers and an extruding outlet at the bototm.  These rollers are parallel, counter-rotating and steam- heated.  The polymer soln. is added at the top and flows out of an open member on to the gap between the rollers. This member is slightly narrower than the rollers.  The soln. is cooled by jackets round the inlet.  The gap between the rollers is 0.1-16mm and adjustable.  The film of polymer is stripped off by doctor blades and guide plates which have a non- stick coating.  The curtains of dried film fall over further guide plates down to the outlet of length equal to that of the rollers. ADVANTAGE - Procedure is economical.  The prod. is not affected thermally.  Partic. used with non-film-forming polymers and below m.pts.
Patent DE-4105952-A1 (DE)
Title: Rotary offset printing machine - has lacquer applying system and calendering system built into machine
Inventor: JENTZSCH ARNDT DIPL ING
IPC: B41F25/00
Filed: 1991-02-26
Abstract: The rotary printing machine consists of three units (1, 2, 3). In the first unit (1) there is an ink applying system (6) and a moisture-lacquer applying system (7). In the second unit (2) lacquer is applied through a system of rollers (10, 11, 12, 13). In the third unit (3) the printed sheets are subjected to a calendering process by means of the calender cylinder (15) which presses the printed sheet against the printing cylinder (4). A smoothing plate (16) is attached the calender cylinder (15). The smoothing plate is coated with a lacquer repellent layer to prevent lacquer adhering to the plate. USE/ADVANTAGE - Lacquering process for printed sheets which is contained within the printing machine.
Patent DE-4113114-A1 (DE)
Title: Stress=relief arrangement for metal-armoured optical cable - consists of contact portion pushed under armouring penetrated by claws of external pressure portion
Inventor: FINZEL LOTHAR DIPL ING
IPC: G02B6/44
Filed: 1991-04-22
Abstract: The metallic armouring (16) of the cable (1) contg. optical waveguides (15) is gripped between the contact portion (22) and the pressure portion (23) on which claws (24) bite into the metal. The contact portion is secured to the end of a fixture (3) passing through holes (25,28) in the pressure portion (23) and the shrinkable tubing (4) surrounding the cable. The pressure portion partly surrounds the armouring (16) and can be adapted to cables of different dia. using holes or breaks (29) in deformable plastics material (30). ADVANTAGE - Secure and uniform contact is guaranteed with prevention of deformation of cable.
Patent DE-4115457-A1 (DE)
Title: Injection nozzle for IC engine - incorporates hollow needle controlling first group of injection holes and loaded towards closure position by spring
Inventor: GILL DENIS WALTER DIPL ING
IPC: F02M63/00
Filed: 1991-05-11
Abstract: Inside the hollow needle (6) is fitted a concentric inner needle (17) which is loaded in the direction of its closure position by a second spring (18). In order to match the injection cross-section to the actual engine running state, a shoulder (22) is provided on the hollow needle (6) which works in conjunction with a heel formation (21) on the inner needle (17). In the closure position of both needles, a clearance is provided between the shoulder and the heel formation, and an adjustable stop is available for one of the two needles. In one position, the stop permits a movement (h) of the needle which is less than the clearance between the shoulder and the heel formation. In a further position of the stop, the needle movement is greater than the clearance between shoulder and heel formation. USE/ADVANTAGE - In fuel injection systems for internalcombustion engines, to match the injection hole cross-section to the actual running conditions of the engine.
Patent DE-4116775-A1 (DE)
Title: Releasable clamped operating lever e.g. for machine chuck - has drive spindle fitted to lever arm via cylindrical reception head
Inventor: BOOTZ BERTIL
IPC: B25B1/24
Filed: 1991-05-23
Abstract: The lever has a lever arm (1) with a cylindrical head (2) having a polygonal internal profile (3) receiving a drive spindle with a complementary external profile (4). The polygonal internal profile (3) is eccentric to the cylinder axis (A) of the head (2), the latter enclosed by a concentric locking sleeve (6). The drive spindle (5) and the locking sleeve (6) have an annular groove (9) and an eccentric bore (7) cooperating to lock the spindle (5) to the head (2) upon rotation of the locking sleeve (6). ADVANTAGE - Easy release coupling between drive spindle and lever arm.
Patent DE-4117428-A1 (DE)
Title: Packing machine with heat sealer using recyclable materials - includes applicator supplying reactivatable hot glue
Inventor: GLINDEMANN DETLEF DIPL ING
IPC: B65B51/02
Filed: 1991-05-28
Abstract: The hot glue appliators (2,3) set in front of the folding device (5) and coats the sealing faces (7) with glue. The applicator can be a spray roller, or pressure machine and can move across and/or along the feed direction. The hot glue dries out within a drying stretch up to the first folding process. It is reactivated after the various folding and filling processes. USE/ADVANTAGE - Existing machines can be used with recyclable wrapping materials.
Patent DE-4118753-A1 (DE)
Title: Impeller cut-in and cut-out mechanism for multistage pump - has piston with rod, carrier, springs and fluid guides, the piston having positive and/or flexible connection with carrier
Inventor: HEIN STEFAN DR ING
IPC: F04D13/02
Filed: 1991-06-06
Abstract: The switch is arranged in the impeller (14) or the shaft (8). It consists of a piston (2) with a piston rod (1), a carrier (7), springs (5) and three fluid guides (9,10,11). The piston has a positive and/or flexible connection with the carrier. The fluid guide (9) with the lowest pressure adjoins the piston cavity (4). The other fluid guides (10,11) represent the pressure stage in p, s, i and adjoin the spaces outside the piston cavity. USE - Solar pumps, bore hole pumps, water supply plant, and ground water heat pumps.
Patent DE-4124297-A1 (DE)
Title: Prodn. of impervious liner - by e.g. backing substrate with e.g. aluminium, placing combination in suitable mould, injecting e.g. acrylic polymer to cover face and edges
Inventor: PELZ BRUNO
IPC: B29C45/14
Filed: 1991-07-22
Abstract: Line is produced in which a profiled component is coated on at least part. The component is at least partially placed in an appropriately shaped mould and the coating is injected into the mould. A pref. coating is polymethylmethacrylate, the basic component is e.g. metal, wood, or plastics. ADVANTAGE - Provides a perfect seal for the surface. Largely eliminates problems of any environmental pollution. In an example, a starting material (1) is e.g. wood, fabric, film, etc. which is first bent to the required shape. The back is covered with e.g. aluminium sheet (3) for reinforcement which reaches the edges of the material (1). Assembly is placed in an injection mould; the mould completely covers over the front faces and rim but leaves the back uncovered. The (e.g.) acrylic shot is injected into the mould to produce the coating (2) which also covers the edges and thus produces an effective seal against moisture penetration. Other coating details can be alternatives to suit the application. Surface variations e.g. fluting can also be produced in the front covering (2).
Patent DE-4131654-A1 (DE)
Title: Tubular fabric stack layer - has expander at final section of laying unit to prevent marking or damage
Inventor: JACOBSSON BERTIL
IPC: B65H45/101
Filed: 1991-09-23
Abstract: Appts. to lay tubular fabrics in folds on a laying surface, in a stack, has an expander (15) at the final section of the laying unit (14) which supports the fabric. The laying unit (14) is continuously positioned (25-28) for height, as the laid fabric stack increases, to maintain a set vertical gap between the top layer in the stack and the bottom of the laying unit (14). The expander (15) is at a vertical slide (14a), with to-and-fro movement parallel to the laying surface (20), with a swing frame on an upper and lateral axis. The vertical gap between the laying unit (14) and the upper side of the stacked (29) fabric (2) is monitored (28) with a connection to the drive (25) of the height positioning system (25-28). The slide travels on the extending arms (23a) of a U-shaped bracket (23), with a height adjustment on a vertical frame. The monitor (28) is pref. at least one photocell at the underside of the slide or the bracket. ADVANTAGE - Designed esp. for handling wet tubular fabrics, the system imposes no markings and gives evenly-laid material with an undamaged and even stitch structure.
Patent DE-4133107-A1 (DE)
Inventor: GRIEF NORBERT
IPC: B65G27/08
Filed: 1991-10-05
Abstract: The invention relates to a vibratory conveyor (1) with a workpiece guide track (10) supported by springs (8) of a base frame (3) and with a vibratory drive (18) moving the workpiece guide track (10), and proposes, in order to achieve a solution which is particularly advantageous from the structural standpoint, that the vibrating ends of the springs (8) be connected to legs (14) of two profiled rails (12) extending in parallel. <IMAGE>
Patent DE-4133145-A1 (DE)
Title: Prepn. of new propranolol analogues - by reacting racemic oxirane(s) with optically active amine(s), then selective oxidn., useful in regulation of blood pressure
Inventor: KRAUSE HANSWALTER PROF DR
IPC: C07C217/30
Filed: 1991-09-30
Abstract: Prepn. of enriched diastereomers of propanolol analogues with two chiral centres, of formula (I) comprises (a) reaction of racemic oxiranes of formula (II) with optically active amines of formula (III); and (b) selective extn. of the resultant propanolol analogues (as their acid addn. salts) to give the enriched diastereomers. Ar = naphthyl, 4- or 6-methylnaphthyl, phenyl, 4-nitrophenyl, 2- or 4-chlorophenyl, tolyl or ureidophenyl; R1, R2 = 1-6C alkyl, opt. substd. phenyl, naphthyl or substd. benzyl; provided that R1 and R2 are different. USE/ADVANTAGE - (I) are regulators of blood pressure. The process is simple and involves few reaction steps.
Patent DE-4134267-A1 (DE)
Title: Collision absorbing subframe mounting assembly - has movable rear mountings for chassis fitting
Inventor: THUM HOLGER-MICHAEL DIPL ING
IPC: B62D21/11
Filed: 1991-10-17
Abstract: The subframe (11) has cross members and side members and is attached to the two longitudinal load members (19, 20) of the chassis by front- and rear mountings. The rear mountings are attached via an open slot (24) on the subframe. This allows the mounting to open under impact and provide relative movement between the subframe and the chassis. The mountings can include elastic braced fittings to absorb vibrations and to provide impact absorbing properties. The slots are positioned on raised lips above the level of the mountings. ADVANTAGE - Improved impact absorbtion, improved safety.
Patent DE-4136362-A1 (DE)
Title: Steering wheel for road vehicle - has hub fitted on steering column by tightening nut on threaded section of column against counter cone
Inventor: SANDER BERNWARD
IPC: B62D1/10
Filed: 1991-11-05
Abstract: The road vehicle steering wheel has an inner cone on to which fits an outer cone on a nave on the steering column. A recess coaxial with the nave accommodates a nut which engages on a threaded end section of the steering column in order to clamp the two cones so that they do not rotate. On the recess (12) is an elastic nose (13) formation which ensures insertion of the nut (8) in the recess and its retention there. On the nave side, the nut has an all-round collar (9) behind which the nose formation engages, extending over the total periphery of the recess. The nose formation is provided on the edge of the recess turned away from the nave (2). USE - As a steering wheel for a road vehicle.
Patent DE-4136926-A1 (DE)
Inventor: TUTZAUER RENE
IPC: B61F5/32
Filed: 1991-11-11
Abstract: A running gear for low-platform waggons has a running gear frame on which individual wheels (5) are rotatably mounted each by means of a rocker (3) and the rockers (3) are hingedly supported on primary springs (7). The aim of the invention is to provide running gears for low-platform vehicles that fully preserve the low-lying character of the vehicle body, only wheel cases being available in the area of the individual wheels (5) of the running gear. For that purpose, the running gear frame is secured to the low-platform vehicle body by two articulated rods (11) mounted on a stretcher (1) of the running gear frame, which on the other side are secured to the vehicle body. The vehicle body is supported on the running gear frame on secondary springs (10) mounted in pockets (9) at the transverse ends of the stretchers (1) and transverse stops (13) arranged in the stretcher (1) limit the transverse mobility of the vehicle body in relation to the running gear. The individual wheel (5) and its drive (16) are advantageously mounted as a unit in the rocker (3).
Patent DE-4143137-A1 (DE)
Title: Extrusion of 2-ply round optical fibres - comprises combiing e.g. polyamide and polybutylene:terephthalate as they emerge from die to obtain best composite
Inventor: REGER OLAF
IPC: B29C48/05
Filed: 1991-12-28
Abstract: Extrusions such as (particularly) optical fibre cores are provided with laminar sleeves by using plastic materials together in one common injection head. Streams of polymers at different temps. and pressures are combined together into one common sleeve immediately they emerge from the extruder and not beforehand; in the combination the inner layer has a higher and the outer layer a lower viscosity, and the cross-sectional areas of the two layers are equal. The inner layer is preferably polyamide, the outer is preferably polybutyleneterephthalate. A two-ply sleeve for an optical fibre is produced from two polymers (5,6) flowing out from the extruding tools (1,2) i.e. where they meet at the outlet itself and the outer end of the tip (3) of another tool. The optical fibre passes along the inner tool (4). The outer tools (1,2) have their flow faces set at about 60deg. The polymers can cover e.g. two optical fibres (11) and, at the same time, the assembly can also apply a thixotropic gel by the tool (4). The equipment can apply e.g. polyamide inner (9) layer at 28deg.C and polybutyleneterephthalate outer (10) layer at 263deg.C at 150 m/min. ADVANTAGE - The method minimises the stresses in the products of simultaneously laminating sleeves of (particularly) optical fibres. It optimises the processing of different materials regardless of their pressure, temp. or viscosity and it prevents one layer from affecting the other.
Patent DE-4208712-A1 (DE)
Title: Chain driving mechanism for bicycle
Inventor: RUEDE KAI-UWE DIPL ING
IPC: F16G13/04
Filed: 1992-03-18
Abstract: A chain (514) is selectively engageable by a chain-side engagement element engageable with a sprocket-side engagement element of a respective one of the sprockets (512). A chain transferrer is provided for causing the chain to engage a selected one of the sprockets. Each of the sprockets has a respective sprocket middle plane perpendicular to the axis.The chain has a first enveloping side plane and a second enveloping side plane spaced from the first enveloping side plane along the axial direction. Both the enveloping side planes are substantially orthogonal to the axis. A virtual chain middle plane is substantially orthogonal to the axis.
Patent DE-4209642-A1 (DE)
Inventor: LOOS GERHARD
IPC: B41F35/00
Filed: 1992-03-25
Abstract: A device for alternately cleaning several cylinders (2, 3) of a sheet-fed printing machine having a cleaning surface which, with a common pressing-on means (9) for cleaning at least two cylinders, can be moved into contact alternately with one of the cylinders along a contact line of the cleaning surface running parallel to the respective cylinder axis, having common drive means for cleaning these cylinders for feeding to change the position of the contact line in relation to the cleaning surface. <IMAGE>
Patent DE-4215158-A1 (DE)
Title: Mobile automatic sliver piercing moving for textile machine - by gripper arm into approximate position, touching guiding device and positioning with min. waste accurately
Inventor: SIEGENTHALER MARCEL
IPC: B65H67/08
Filed: 1992-05-08
Abstract: Front end (17) of the gripper (6) has a guide element (18) which interacts with a guiding device (19) which defines a convergent zone leading to the sliver feed (7). The actuator can measure and store the position of the arm when the guide element (18) touches the guiding device (19). The force exerted by the actuator can then be reduced. Pref. sliver gripper (6) is manipulated horizontally and vertically by a robot arm mounted on a mobile piecing machine (1). The gripper collects the sliver end from the supply can (4) and brings it into the approx. region of the sliver feed (7) till the guide element (18) meets the guiding device (19). The actuating force is reduced to determine position of the gripper by the guiding device (19) which is attached to the sliver feed on the machine, and placing the sliver accurately into it. USE/ADVANTAGE - Min. of waste.
Patent DE-4217085-A1 (DE)
Title: Automatic conductor frame feeding device for transistor outline semiconductor mfr. - has successive loading, transfer and feeding sections and does not require separate storage magazine
Inventor: KIM YOUL
IPC: H01L21/00
Filed: 1992-05-22
Abstract: The conductor frame feeding device has a loading section (2) with a pair of relatively spaced guides (5) between which the conductor frames (1) are stacked and a transfer section (3) at one side of the loading section (2) transferring the conductor frames (1) from the bottom of the stack to a feeding section (4). Pref. the guides (5) have stop noses (6) for the opposite ends of each conductor frame (1), between which longitudinal rails (7) for supporting the conductor frames (1) extend, the transfer section (3) having spaced transfer rails, parallel to the support rails (7).
Patent DE-4218619-A1 (DE)
Title: Sample=and=hold circuit for two analogue signals - has differential circuit generating output via switching stages to buffer circuit having collector control differential circuit for stable output
Inventor: MIKI TAKAHIRO
IPC: G11C27/02
Filed: 1992-06-05
Abstract: The sample and hold circuit (100) of a type using a voltage difference between two input analogue signals, has a differential stage (3) connected by switches (4,5) and capacitors (6,7) to the inputs of a buffer circuit (300). The collectors of two input transistors (203,204) within the buffer are connected to a collector control differential circuit (209), such that the collector base voltages are the same. Each emitter connects with a constant current supply (205,206). The arrangement provides stable operation. ADVANTAGE - Provides adjustable gain and stable operation.
Patent DE-4229099-A1 (DE)
Title: Bus system for digital optical signals - has two or more bus lines, linking main station with peripheral stations having input and output interface elements
Inventor: WIDMANN FRIEDRICH DIPL ING
IPC: H04B10/27
Filed: 1992-09-01
Abstract: The bus system has a main station (1) coupled to at least two bus lines (10, 11) linked to a number of peripheral stations (2, 3, 4) at least one of which has input and output interface elements (5, 6; 7, 8). At least one of the input interface elements comprises an electrically controlled optical signal switch, the input interface element for the peripheral station (4) at the furthest distance from the main station being provided by a polarised light source (9). Pref. the input interface elements for each peripheral station (2, 3), except the last, is provided by a Pockel cell, the output interface elements (5, 6) being provided by single-mode couplers. USE/ADVANTAGE - For data communication network with good signal quality and rapid signal transmission.
Patent DE-4229859-A1 (DE)
Title: Metal-free overhead cable - has core comprising plastic tube inside which are arranged light wave conductors and draw-proof reinforcement
Inventor: MALTZ GEORG
IPC: G02B6/44
Filed: 1992-09-07
Abstract: The individual light wave conductors (5) extend without excess length in the plastic tube (6) and are arranged in the form of strips (1, 2, 3, 4). The max. load of the overhead cable is limited to a value which is approximately one third of the fibre screen test level. The light wave conductor strips each contain four light wave conductors (5). In addition to or instead of one or more light wave conductors (5) a draw-proof component is provided within the strip (1, 2, 3, 4). This draw-proof component is a thin fibre of polyaramid, liq.-crystal polymer or glass fibre-reinforced plastic. In the walling of the tube (6) draw-proof components are arranged. On the tube (6) and the draw-proof reinforcement (7) a plastic cover is extruded. USE/ADVANTAGE - A metal-free overhead power line. The power line is suitable for serving thinly populated areas, contg. a low number of optical fibres, and installed with a span width of less than 100 m.
Patent DE-4230739-A1 (DE)
Title: Cut-off component for fluids - has housing with inlet and at least one outlet and in which is rotatable plug with at least one through channel.
Inventor: KRAUS WALTER
IPC: F16K5/04
Filed: 1992-09-14
Abstract: The peripheral surface of the plug (20) has a corrosion-free sealing layer (21), which leaves the channel mouths of the plug free. The plug has at least one through channel, the mouth of which in the open position is aligned with the inlet and outlet in the housing. The plug is a cylindrical ceramic disc or a disc of PTFE. The sealing layer (21) is of metal and is fitted to the plug body or it is made of PTFE (CF2). The peripheral surface of the plug and a recess (5) in the housing (3) are conical. The underside of the plug supports on the floor (6) of the housing (3). In the floor (6) of the housing is provided a through hole (14) with connecting connections (12) and on the housing periphery one or more through apertures with connecting connections (15). USE/ADVANTAGE - As a tap for fluids. It has a tap plug which even when in the cut-off position for long periods can be turned without difficulty in the tap housing.