baber/WOPTO huggingface dataset:
Patent DE-4120167-A1 (DE)
Title: Method to convert heat energy into mechanical energy - has working gas introduced by fast-acting valve into working chamber in cylinder, for heating
Inventor: KOLB HORST
IPC: F02B75/22
Filed: 1991-06-19
Abstract: The method coverts heat energy into kinetic energy. The heat energy is used, to heat a working gas, in a a chamber. The gas is at set operational pressure, and brought to a set operational temperature. Expansion is used to bring the gas to a lower relief pressure, to drive a piston in a working chamberr. The chamber is the internal chamber of a working cylinder. The working gas is introduced by momentary opening and closing of an inlet valve (14), into the chamber, which is already at operational temperature. The gas volume corresponds to the volume of the working chamber. The introduction period of the gas is so short, that the valve is already closed again, before any considerable rise in pressure by thermal heating of the gas, takes place.
Patent DE-4121912-A1 (DE)
Title: Cylinder for rotary printing machine - is supported on half rings with spherical external surfaces
Inventor: GUHR UWE DIPL ING
IPC: B41F13/20
Filed: 1991-07-03
Abstract: The rotary printing machine, for printing separate sheets, has a cylinder with a stub shaft (2) projecting from each end.  The stub shaft (2) is fitted with two half rings (5) which together form a spherical support surface. These half rings (5) are supported in two outer ring segments (1a, 1b) which have internal spherical surfaces. The inner half rings (5) are secured to the stub shaft (2) by a transverse pin (4) with one end of the pin (4) engaging a radial slot (3) in the upper segment (1a) of the outer support ring. USE - Rotary printing machines.
Patent DE-4128076-A1 (DE)
Title: Device for loading wheelchair into railway carriage - has U=shaped frame on wheels and platform of adjustable height, on frame, with hinged ramps at each end
Inventor: HEIDE GOTTHARD DIPL ING
IPC: B65G69/24
Filed: 1991-08-23
Abstract: A device for loading a wheelchair into a railway carriage has a U-shaped frame (2) which is supported on wheels. A platform (5) of adjustable height is mounted on a scissors-type linkage (4) which is mounted on the frame (2) between the legs (3) of the U-shape. The platform (5) can be rotated about a vertical axis relative to the frame (2). A hinged ramp (7) at one end of the platform (5) can be swung downwards to allow the wheelchair to be wheeled on to the platform (5). A second ramp (6) enables the wheelchair to be wheeled off the platform and onto the floor of the carriage. USE/ADVANTAGE - Loading a wheelchair into a railway carriage. The device can be adjusted to suit the height of the carriage floor.
Patent DE-4129699-A1 (DE)
Inventor: OHM HEINZ JOSEF
IPC: D06F57/12
Filed: 1991-09-06
Abstract: A laundry stand which can be clamped between ceiling 1 and floor 2 has a central upright tube 3 with an outer tube 4 and with an inner tube 5 displaceable therein. The inner tube 5 is supported on the ceiling 1 via a compression spring 13. For bracing and locking the upright tube between the ceiling 1 and floor 2, there is a clamping lever 18 which is mounted on the outer tube 4 so as to be pivotable about an axis 20 extending transversely relative to the longitudinal axis of the upright tube 3 and which has, on its basic body 21 with a cylindrical outer face, some tooth-like projections 23 which come into engagement with tooth spaces 24 of a rack 19 attached to the inner tube 5, when the clamping lever 18 is rotated in the clockwise direction. The inner tube 5 is thereby pushed upwards, the compression spring 13 being compressed. In its end position, the clamping lever 18 catches in a blocking nose 28 of a resilient catch device 25. After the catch device has been released, the spring 13 presses the inner tube 5 downwards, with the result that the clamping lever 18 is pivoted and the tooth-like projections 23 come out of engagement. The inner tube 5 can then be pushed freely into the outer tube 4. <IMAGE>
Patent DE-4132889-A1 (DE)
Title: Coupling for tractor and ancillary units - has guides in bushes followed by drive coupling engagement
Inventor: ROEDER ERWIN
IPC: A01B71/06
Filed: 1991-10-04
Abstract: An agricultural tractor has a power take off point at the rear which consists of a shaft (63) with a coupling point (81) supported within a sleeve located in a grame (9). The frame forms part of the tractor structure. Integrally mounted on the sleeve is a flange plate with locating bushes (97). An externally item of equipment, such as a rotary mower (125), is to be coupled to the tractor drive. This has a centre drive (56) with a spindle (82) that engages that of the tractor. The tractor is moved to engage the coupling and pins (66) locate in the bushes (47) for guidance. ADVANTAGE - Simplified coupling for tractor ancilleries. Can also be for pneumatic, hydraulic and electrical lines.
Patent DE-4133617-A1 (DE)
Title: Jettisonable propulsion cage - has guide elements providing gas seal for sub-calibre projectile
Inventor: ROMBACH RUDOLF
IPC: F42B14/02
Filed: 1991-10-10
Abstract: Jettisonable propulsion cage (4) for a sub-calibre projectile is divided into several segments, split in the longitudinal direction, each segment having at least one guide strip element (5). The segments are held together by a separate holding device (6) and the elements each consist of a metal insert (17) with a plastic sheath (18). ADVANTAGE - Uniform gas seal on the projectile side.
Patent DE-4135109-A1 (DE)
Title: Screw cap for container - has cover with constrictions, and ring groove to retain container socket, with sealing rings, uses all socket faces for sealing
IPC: B65D41/04
Filed: 1991-10-24
Abstract: The screw cap has a screw sleeve with internal thread, and a cover to close the sleeve. The cap is screwed onto a container socket, and seals the end face of the socket with the inside of the cover. The cover (12) has a constriction. One cover section (13) and the facing section (16) of the screw sleeve (11), form a retainer ring groove (17) for the socket (20). The ring groove has a sealing ring (19) in the base (18), which seals on the end face (21) of the socket. At least the cover section, and/or the sleeve section, have a sealing ring (14), which seals on the facing wall of the container socket. USE/ADVANTAGE - Simple and economical mfr. of one-piece screw cap for container.
Patent DE-4136499-A1 (DE)
Inventor: HOECKER EITEL-FR DIPL ING
IPC: E04C3/04
Filed: 1991-11-06
Abstract: The corner joint consists of two legs (4) which are designed as extruded profile sections with identical cross-section and are cut out of an extruded profile at an angle to the longitudinal axis of the profile. The extruded profile sections are "on turning over" inserted into one another and connected positively. The aim of the invention is to design the extruded profile in such a manner that production of the profile sections, which engage positively in one another and form the corner joint legs, can be carried out with normal tolerances. This aim is achieved in that there is provided, exclusively on one narrow side of the extruded profile running parallel to the longitudinal axis of the profile, a profiling forming the connecting surfaces, and the two extruded profile sections forming the legs of the corner joint can be assembled positively with the profiled narrow sides. The area of application is the building industry. <IMAGE>
Patent DE-4136679-A1 (DE)
Inventor: COUTANDIN JOCHEN DR
IPC: B29C59/04
Filed: 1991-11-07
Abstract: A temperature-controllable roll 1 serves as a heat-sealing tool on the circumferential surface of which a number of plastics film webs 14, 15, 16 are heat-sealed to one another with the application of pressure and heat. The plastics film webs travel at equal or different distances from one another onto the circumferential surface of the roll 1 and are guided via pressure rolls 2, 3, ... 7. The said pressure rolls bear under pressure on the circumferential surface of the roll 1. The plastics film webs pass through the nips between the pressure rolls and the roll 1. The plastics film webs have alternately have no heat-sealing layer or have on one or both sides heat-sealing layers which are fused by the effect of heat, so that heat-sealing of the laminated plastics film webs occurs on the circumferential surface of the roll 1. 
<IMAGE>
Patent DE-4138695-A1 (DE)
Title: Transportable continuous sewage treatment
Inventor: SONNENREIN UWE
IPC: C02F3/02
Filed: 1991-11-25
Abstract: The treatment is a continuous process with sepn. stages for coarse and fine solids, followed by an aerobic and an anaerobic biological treatment. The sewage is recirculated a number of times between the separate purifying stages, with fine control through a process control system. The sewage drawn from the aerobic biological stage is mixed together with the mixt. of industrial oxygen and clear water from a gas/water mixer and returned to the aerobic stage. The passage of the sewage through the system is monitored by sensors, and the measured values are passed to a process control system to be used for further control of the sewage movement.
Patent DE-4139510-A1 (DE)
Title: Multi-jointed laser robot requiring fewer mirrors - having adjustable main mirror and four main rotation axes
Inventor: SUGIYAMA HISAO
IPC: B23K26/042
Filed: 1991-11-29
Abstract: Multi-jointed laser operating robot consists of a base (1) with a column (2) rotatable about axis J1, a first arm (3) rotatable about axis J2 and a second arm (4) rotatable about axis J3. The second arm also provides the laser transfer path which makes up a fourth axis J4 which crosses the first and third axes. A mirror (M1) is arranged on a column at the intersection of the first and fourth axes in order to reflect the laser beam from the axis J1 along the axis J4. USE/ADVANTAGE - Welding or cutting workpieces. The robot has a wide working field due to the flexibility of its axes and the number of mirrors required is reduced.
Patent DE-4141712-A1 (DE)
Title: Yarn delivery unit for textile machines - has arrangement of yarn delivery devices, each with at least one deliver device
Inventor: FABSCHITZ HEINZ
IPC: D04B15/48
Filed: 1991-12-18
Abstract: Yarn delivery installation is equipped with arrangement of several yarn delivery devices mounted on one- or multi-component support. Each device has at least one yarn wheel, which is in rotation connection with drive gear wheel. These gear wheels are positioned along circle in the interior of the rim-like arrangement and engage with joint toothed drive element, in turn driven by means of gradually adjusted main drive. The rotating connection between the drive gear wheel located in the rim interior and the yarn wheel is effected by means of telescopic shaft which is adjustable in its length. Circular knitting machine is equipped with support columns (14,14') for fastening package stand (7) above the actual knitting machine. The support (7) is provided with package support ring (8), packages (9) and a guide ring (8). Each package is associated with guide hook (11). The support columns (14,14') also carry rim of yarn delivery devices (13) and the rotating connection between the drive components and the yarn delivery devices is produced by means of shafts (19,19') with associated locking mechanisms (20,20'). ADVANTAGE - The complete yarns delivery unit can be adapted to the knitted prod. to be made quickly, simply and in reproducible manner. Defective devices can be exchanged simply and the parts used are standardised to extensive deg..
Patent DE-4142690-A1 (DE)
Title: Sewing machine - has equipment adapted to control supply of endless cord or wire which is stitched into position
Inventor: OEFERLEIN JOSEF
IPC: D05B53/00
Filed: 1991-12-21
Abstract: A sewing machine has a supply of material in string form fed to the stitch position from a revolving swift. An arm attached to the machine has a bar suspended in the manner of a pendulum. A spindle protrudes through the bar to support a swift on each side. Against the rim of the swift a pad presses towards cross- bars fixed in a support bracket which act as material guides. ADVANTAGE - The material fed to the sewing machine may be cord or copper wire cable, applied by zig-zag stitch to technical cloths. The regulation enables straight sides to be machined rapidly, with slower movement on curves, etc. releasing the cord evenly
Patent DE-4200368-A1 (DE)
Title: Cable termination sleeve for mating with connector pin - contains permanently bowed leaf spring held in slots of tubular end into which pin is pushed
Inventor: ENDO TAKAYOSHI
IPC: H01R13/115
Filed: 1992-01-09
Abstract: The body(25) of the sleeve has a tubular end (3) for the insertion of the pin, and an open end (5) to which the cable is secured. A flexible contact piece (25) in the form of a bowed rectangular leaf spring has four laternal projections (37,41) for slotting (33,35) into the sidewalls (29) of the tubular end (3). The pin inserted into the opening (31) is urged by the contact piece (25) upwards against the roof of the sleeve where it is held firmly. ADVANTAGE - Initial insertion force is reduced without any significant change in stabilised contact pressure.
Patent DE-4201349-A1 (DE)
Title: Multi-purpose chair for infirm and physically handicapped - has seat of adjustable height and backrest with adjustable angle of inclination
Inventor: CHRISTIANSEN POUL
IPC: A61G5/12
Filed: 1992-01-20
Abstract: The seat (10) either by itself or together with the armrests (14) and/or the backrest (12) are adjustable in height and/or angle of inclination. The armrests are either fixed or can be folded sideways. The chair has an attached footstool or footrest (80) which is adjustable both for height and for angle of inclination. The seat is mounted on a scissors-type linkage to enable its height to be adjusted. ADVANTAGE - The chair can be adjusted to suit the individual needs of the occupant.
Patent DE-4202831-A1 (DE)
Title: Pre-mixing gas burner - has bimetal strips hinging half-way along distribution chamber and guided in end slots
Inventor: ROOS MARTIN
IPC: F23N5/04
Filed: 1992-01-29
Abstract: The pre-mixing, and pref. atmospheric, gas burner has a nozzle with mixing passage delivering into a mixture-distribution chamber. A flow-restrictor formed by two bimetal strips is mounted at the mouth of the passage into the chamber. The rectangular strips (3) hinge half-way along on opposite sides of the corresp. rectangular distribution chamber (1). Their opposite ends (9) are guided in vertical slots (8) in the chamber. ADVANTAGE - Max. alteration in cross-section under small temp. variations.
Patent DE-4213578-A1 (DE)
Title: Mounting for fixing electrical or electronic component on carrier - has radially projecting legs that engage in slots in carrier and are locked by applying torsion load
Inventor: PFISTER RALF
IPC: H05K7/12
Filed: 1992-04-24
Abstract: An electrical or electronic element (12) has a housing that is produced with a number of radially projecting arms (13a,b,c) shaped to provide fixing to a carrier plate. Each radial arm has a tip section formed with a tapered profile that readily enters a slot (17) in the carrier plate. When in the loading position, the slot has an enlarged cross section. Once located the component may be turned through a small arc to allow the latching features (18) to lock into a narrower section. USE/ADVANTAGE - Secure mounting of components on carrier in which self loosing is impossible, except in the unlikely event that an arresting leg breaks off, without requiring auxiliary appts. such as locking plates.
Patent DE-4214304-A1 (DE)
Inventor: LUNEBACH DETLEF
IPC: C22C9/01
Filed: 1992-04-30
Abstract: Non-ferrous heavy-metal alloy, nickel-free apart from, at most, 0.09% as a result of smelting, having a composition in per cent by weight of: Mn:   more than 5.0 up to 15.00%                 Al:        from 4.0 to 7.50%                 Fe:        from 1.0     to 2.80% B:      from 0.0005     to 0.01%                 Si:        from 0.0 to 0.30%                 Ni:        from 0.0     to 0.09% C:         from 0.0     to 0.08%                 S:         from 0.0    to 0.03%                 P:         from 0.0    to <0.01%  the remainder being copper with impurities due to smelting. Such a copper mixed-crystal alloy is particularly suitable as a material for jewellery and metal objects which, in normal use, are in contact with the skin, especially for spectacle frames and parts of spectacle frames and coins. The alloys according to the invention do not trigger any nickel-caused allergies.
Patent DE-4217430-A1 (DE)
Title: Pick=up arrangement for detecting and representing objects for comparison - has electronic camera and prismatic deflection devices forming partial images of simultaneously detected object regions
Inventor: BOEGNER BERNHARD DIPL ING
IPC: B41F33/00
Filed: 1992-05-27
Abstract: The arrangement contains an electronic camera (21) in the beam path and a deflection device (18). Two partial images (27.1,27.2) are formed in the image plane (23) of the camera via prismatic beam deflectors (18.1,18.2) according to two object regions (24.1,24.2) simultaneously detected in different directions. Both partial images are combined to form a total image on a monitor or image processing system. The longitudinal axis of the beam path is arranged in the central plane between the two object regions to be detected. USE/ADVANTAGE - Esp. for detecting and representing object regions to be aligned with each other by compact arrangement requiring little adjustment and simple signal processing.
Patent DE-4217588-A1 (DE)
Title: Readily water-soluble photosensitive e.g. for photolysis in water - based on ruthenium complex contg. new poly:ethoxy-di:pyridazine cpd. ligand
Inventor: DUERR HEINZ PROF DR
IPC: C07D237/14
Filed: 1992-05-27
Abstract: Photosensitisers are based on Ru(II) complexes (I) contg. a complex cation of the formula Ru(LaLbLc(2+; La, Lb and Lc = substd. dipyridazine ligands of formula (II). New 6,6'-bis(omega-hydroxy-polyethoxy) -3,3'-dipyridazines and their symmetrical and asymmetrical ethers and esters are of formula (II); n and m = 1-10; R1-2 = H, 1-20C alkyl or acyl, opt. with halogen substit(s)., or 6-22C aryl, aralkyl or aracyl, opt. with halogen or alkoxy substit(s).; each R1 and/or R2 of the ligands may form a bridge linking the ligands. The prepn. of (I), which includes the prepn. of (II), is claimed. Pref., R1 and/or R2 = 2-20C alkyl, acyl, aryl or aracyl forming bridges between the substd. bipyridazine units. In particular, R1 = benzyl; the 3 R2 together = a benzene-1,3,5-tricarbonyl gp. (derived from trimesic acid); n = 1; m = 2. USE/ADVANTAGE - (I) have excellent photophysical properties, esp. high photostability, high quantum yield and long lifetime in the excited state. The hydrophilic substits. impart excellent solubility in water, which is necessary for significant technical processes. They can be synthesised easily in excellent yields. Photosensitisers of this type are useful in light-induced electron transfer reactions, e.g., the photochemical formation of CH4 from CO2 and esp. photolysis of H2O to H2 and O2.
Patent DE-4223099-A1 (DE)
Title: Fastening device for wire basket to carrier of bicycle, etc. - consists of clamp with long straight leg and one hook-shaped leg, locked together by screw
Inventor: RIXEN EDGAR
IPC: B62J9/00
Filed: 1992-07-14
Abstract: The fastener is formed as a clamp (30) with two legs (28, 2), which clamps basket and carrier together. The max. dimension of the first leg is more than twice that of the distance between the wires (20) of the basket. The second leg is formed as a hook, and both legs are connected via guide (9) and screw (6). The first leg of the clamp is T-shaped. The second leg is formed by screw or guide, and divides the horizontal leg into two unequal parts (12,13). The hook is secured in a slot against turning relative to the clamp. The top of the hook points in direction of the longest dimension of the first leg. USE/ADVANTAGE - Wire basket fastener on carrier of bicycle is easy to position, secure, removable, compact construction, low price.
Patent DE-4225627-A1 (DE)
Inventor: BIRNBRICH PAUL DR
IPC: C08G69/48
Filed: 1992-08-03
Abstract: In this method, polymers with carboxyl, amino and/or phenolic-hydroxy groups are reacted with delta-2-oxazolines substituted in the 2-position by a phenyl group or by a long-chain alkyl or alkenyl group with 7 to 23 C-atoms. The reaction goes rapidly and leads to an improvement in the stability of polyesters and polyamides to hydrolysis. The use of the corresponding bis-oxazolines gives, in addition, an increase in the molecular weight.
Patent DE-4230687-A1 (DE)
Title: Semiconductor device - comprises substrate contg. two wells of different conducting types
Inventor: KOMORI SHIGEKI
IPC: H01L21/322
Filed: 1992-09-14
Abstract: Semiconductor device comprises: (a) a substrate (1) of a 1st conducting type; (b) a 1st well (4) of a 1st conducting type, arranged in the substrate (1), where the bath has side sections and a base section extending from the surface; and (c) a 2nd well (6) of a 2nd conducting type, arranged in the substrate (1) surrounding the side sections and base section of the bath (4), where a base section of the 2nd well (6) has a crystal defect zone (7). ADVANTAGE - The crystal defect zone traps excess charge carrier and thus reduces the service life of the carrier.
Patent DE-4231458-A1 (DE)
Title: Refrigerant cooled condenser for laboratory rotary evaporator - with coolant introduced into spiral cooling element by capillary injection, for high vacuum distillation
Inventor: HEIJDEN PETER W D VAN DER
IPC: B01D3/08
Filed: 1992-09-19
Abstract: Cooling device for a laboratory rotary evaporator, has a coolant liquid circulated spiral element in an evacuable glass flask which is connected, by an adaptor piece, with a rotary evaporation flask and a condensate receiver. The novelty is that the coolant liquid is introduced into the spiral cooling element (2) by capillary injection. Pref. the cooling spiral (2) is preferably connected by flow and return line (6, 7) with a refrigeration compressor (8). Preferred refrigerant is R 134. USE - Low temperature operation for vacuum distillation.
Patent DE-4236801-A1 (DE)
Title: Case-hardening of steel parts using hydrogen gas reaction - where a vacuum oven is insulated with readily available mineral fibres and is heated by radiation tubes
Inventor: HOFFMANN RUEDIGER
IPC: C23C8/22
Filed: 1992-10-30
Abstract: A new procedure for case-hardening steel pts. using a heterogenous hydrogen reaction has the novel feature that a vacuum oven is used whose insulation consists mostly of readily available mineral fibres and which is heated by radiation tubes. In order to avoid high heat losses due to high hydrogen content of the carbonising atmos. a working pressure between 300 and 800 mbar absolute is used. Only the quantity of fresh gas is added which is required to maintain the carbon level and a predetermined carbon monoxide and hydrogen content of the gas. As well as the hydrocarbon gas, such as methane or propane, carbon dioxide is added in a fixed proportion and acts as a second source of carbon. Alternatively, a single gas such as acetone or ethyl-acetate may be used which can on its own fulfil the above requirements regarding carbon monoxide and hydrogen content. The gas removed from the treatment chamber is stored in a buffer vessel for use in other treatment processes, such as increasing the pressure in the treatment chamber. USE/ADVANTAGE - In the case-hardening of steel pts. i.e. improving surface strength by increasing carbon content.