baber/WOPTO huggingface dataset:
Patent DE-3905816-A1 (DE)
Title: Spacer for a vertically slatted blind
Inventor: SPOHR HORST DIPL ING
IPC: E06B9/36
Filed: 1989-02-24
Abstract: The invention relates to a spacer for in each case two adjacent slats of a vertically slatted blind, which are each fastened, at their upper end portion, on a slat-retaining means which can move along a rail, essentially composed of an elongate, strip-shaped portion which, at one end portion, is to be fixedly connected by means of a first connecting element - inter alia in a positively locking manner - to a second connecting element of a first slat-retaining means, which is to be guided on a guide of an adjacent second slat-retaining means such that it can move to a limited extent in its longitudinal direction relative to the second slat-retaining means by a displacement distance defining the maximum mutual spacing between two adjacent slats, and which, at its end portion directed away from the first slat-retaining means, exhibits a stop which, upon spreading apart of the slats upon reaching the predetermined maximum spacing between the slat-retaining means involved, comes to bear on the adjacent slat-retaining means, characterised by a spacer element which is to be arranged or is arranged adjacent to its stop and by means of which its displacement distance (x minus a) is to be shortened (Fig. 4). <IMAGE>
Patent DE-3906438-A1 (DE)
Title: Robot grinding tool
Inventor: SCHMID DIETER DIPL ING
IPC: B24B49/16
Filed: 1989-03-01
Abstract: The invention relates to a robot grinding tool which can be coupled to the outer end of the working arm of an industrial robot and is equipped with a force-sensing device for measuring the contact force. The relative position of the grinding wheel with respect to the workpiece can be mechanically preset by means of pivotably mounted touching rollers which can be set by motor at a distance from the working tangent of the grinding wheel. The touching rollers are, moreover, pivotably mounted and equipped with an angular position-sensing device, by means of which a parallel alignment of the axis of rotation with respect to the workpiece can be brought about. Moreover, by a robot-side change in the pressing-on force the parallel alignment of the axis of rotation with respect to the workpiece, on the one hand, and an approach of the grinding wheel to the workpiece surface, on the other hand, can be automatically triggered in two different control stages.
Patent DE-3908685-A1 (DE)
Title: Paper sheets for production of a postcard for confidential communications, and process for the production thereof
Inventor: ISHIGAKI RYUZO
IPC: D21H13/10
Filed: 1989-03-16
Abstract: Paper sheets for the production of a postcard for confidential communications which contains from 5 to 95 % by weight of fibres of thermoplastic resins and from 95 to 5 % by weight of fibres of natural plants. The fibres of thermoplastic resins have been softened and retain the fibrous shape. The fibres of thermoplastic resins are entangled with the fibres of natural plants, so that the paper sheet has been rendered capable of prior adhesion through heating and compression and can subsequently be peeled off.
Patent DE-3918355-A1 (DE)
Title: Carrying handle for shopping bags - consists of piece with semiconductor ends with V=shaped incisions
Inventor: ULSMID FRANZ
IPC: A45F5/10
Filed: 1989-06-06
Abstract: The carrying handle for hand held loads such as shopping bags, packets has two ends which are semicircular in shape or arrow shaped. Each end, above the carrying part, has a V-shaped incision (4) by which loops or handles splay open the opening (6) through their own weight when the load is lifted. The opening (6) then automatically and tightly closes so that the loops and handles cannot slip out. The carrying handle is removed by being turned by 180 degrees. ADVANTAGE - The carrying handle is economically and easily produced, secure.
Patent DE-3921633-A1 (DE)
Title: Overload relief valve with part mounted on machine - has another part, with bearing box and bearing point with bent lever system
Inventor: HASENSTAB GABI
IPC: F16H21/44
Filed: 1989-07-02
Abstract: The overload relief valve has a part (1) mounted on the machine-part being protected. Drive force is introduced to another part (3) which rests on a bearing box (4) open to 180 degrees. The bearing box (4) grips round a bearing point (5) for example ball bearing which is detachably joined to the part (3) by means of guide-pieces (6). The bearing-box (4) is pressed against the bearing point (5) by a further bent lever system (7) which is held so that it engages with an extra, pre-tensioned bent lever (8). USE/ADVANTAGE - Drive forces are restricted directly in an axial direction.
Patent DE-3929005-A1 (DE)
Title: Support for screw thread rolling tool - incorporates dovetail groove to receive clamping strip
Inventor: SCHUNK UWE DIPL ING
IPC: B21H3/04
Filed: 1989-09-01
Abstract: The screw thread rolling tool is attached to a machine tool by a tool holder (1).  The tool holder has a shaft (3) with a cylindrical head (4) which is attached to the tool holder body (2). The tool holder body (2) has a dovetail groove (5) which receivese a clamping strip of matching cross-section.  This clamping strip has tapped holes to receive the fixing screws which are inserted through holes in the cylindrical head (4) and through an axial hole in the shaft (3).  The abutting faces (14) of the body (2) and cylindrical head (4) are serrated to ensure a rigid support. USE - Rolling of screw threads.
Patent DE-3931267-A1 (DE)
Title: Domestic oven door unit - has primary air inlet grill and secondary air channels in frame members
Inventor: POSCH HERIBERT
IPC: F24B13/00
Filed: 1989-09-19
Abstract: An oven door unit comprising door and frame for use on ovens with primary and secondary air requirements. The door has an air inlet which can be closed by a shutter. The opening (9) enclosed by the frame (2 to 5) is at a distance from the inner face (18) of the door (8), and in that gap is an intermediate door (10) with a grill in the upper part. One of the frame members (2) has an air channel (16) with an inlet (17) facing the inner face (18) of the door (8), and an outlet (19) through the top of the frame into a channel (20). USE/ADVANTAGE - The user has no need to be concerned with separation of fresh air from outside from other air streams.
Patent DE-3936549-A1 (DE)
Title: Two-colour propelling pencil - has pinions on lead holders rotating in internally-toothed driving sleeve
Inventor: KEIL GEORG
IPC: B43K24/14
Filed: 1989-11-02
Abstract: The two-colour propelling pencil has two holders in the housing for replaceable leads. It has a changeover mechanism operated from outside, extending and retracting the leads as desired. The mechanism incorporates an internally-toothed driving sleeve (11, 12), while there is a pinion (24, 26) on each holder (5, 6) and turning with it. In relation to the sleeve, the dia. of the pinions is such that they can rotate without impeding each other, and slide in the lengthwise direction of the sleeve. USE/ADVANTAGE - Two-colour propelling pencil is slim, simple, and easy and reliable oepration.
Patent DE-3937440-A1 (DE)
Title: Differential with friction clutch - has friction plate set divided by intermediate ring into internal part and output-adjacent external part
Inventor: SOLLBACH GERHARD
IPC: F16H48/22
Filed: 1989-11-10
Abstract: The differential with friction clutch has a set of friction plates supported between a differential cage (5) and axle shafts (21,22). The friction plates are under the action of expanding force (S) resulting from the gear mesh between driving wheel (2A) and compensating wheel (1). The friction plates can also be subjected to the force of actuating element (8). The relevant feature of the assembly is that between the friction plate set an intermediate ring (7) is fitted which divides the friction ring set into an internal part (I) and external part (E). USE/ADVANTAGE - Vehicle differential the application of the intermediate ring produces a partial locking moment already at a low gear-related expansion shift.
Patent DE-3938847-A1 (DE)
Inventor: SIEGEL WILLIAM J
IPC: G09B5/00
Filed: 1989-11-23
Abstract: A thermocouple arrangement for training personnel or evaluating equipment in connection with a process which thermally affects a printed circuit board assembly, such as soldering/desoldering, includes a layer 3 of a first conductor material applied on a first surface of an electrically insulative support 1, and a second layer 5 of a second, dissimilar, conductor material applied to another surface of the support using conventional printed circuit board construction techniques. At those locations where thermocouple junctions are required, holes are drilled and the two layers of conductor are electrically connected by a plating 7 of the first conductor material. The voltages produced by the thermocouples 9 during a production/repair/rework operation may be monitored. <IMAGE>
Patent DE-4000511-A1 (DE)
Title: Drainage opening for paved surface - is covered with grid which can be adjusted for height
Inventor: BAERSCH KLAUS
IPC: E03F5/04
Filed: 1990-01-10
Abstract: Rainwater is drained from a paved surface through openings which are covered with grids (19) which are supported on frames (6). Each frame (6) is fixed by means of screws (5) to a loose flange (4) which is supported on the fixed flange (1) of the drainage opening surround (7). The contour of the undersurface of the frame (6) and the contour of the upper surface of the loose flange (4) are so formed that the height of the upper surface of the frame relative to the surrounding paved surface, can be adjusted by rotating the frame (6) relative to the loose flange (4). The upper surface of the grid (19) can thus be adjusted so that it is flush with the surrounding paved surface. USE - Drainage of paved surfaces.
Patent DE-4001716-A1 (DE)
Inventor: MULDER ARJEN J DIPL ING
IPC: G07D7/128
Filed: 1990-01-22
Abstract: A testing device for bank notes or similar instruments of payment in sheet form for automatic vending machines has a checking channel with a transport device (7) and scanning devices for recognizing and checking the authenticity of the bank note (3) in front of which an input channel (2) of variable width is arranged. The input channel (2) consists of two channel halves (21) separated by its longitudinal median axis (22) which can be adjusted synchronously against the force of a spring. In their contact position, the channel halves (21) determine the minimum width of the channel, and in their separated end position the maximum width. A bank note (3) of any type is introduced into the input channel (2) at locked maximum channel width as far as a passage detector (19) arranged in a starting region of the checking channel (20). The passage detector (19) unlocks the channel halves (21), as a result of which the side walls (23) of the channel halves (21) are pressed by the force of a spring against the bank note (3) and align it centrally with the checking channel (20).
Patent DE-4003757-A1 (DE)
Title: Prodn. and measurement of sec. X=ray from target - comprising beam collimator as part of focusing assembly with focusing aids to ease focusing for thin film thickness measurement
Inventor: THEIS ULRICH
IPC: G21K5/04
Filed: 1990-02-08
Abstract: Production and measurement of sec. X-Ray emission has a collimator (1) included as part of the focusing assembly. The equipment consists of an X-ray tube in an X-ray opaque housing, (20), an opening (21) for the X-ray beam and a closure (5) to stop the beam entering the collimator (1). Adjustment is included for focusing the beam to a desired area on the target and a proportional scintillation tube for measurement. USE/ADVANTAGE - Thin film thickness measurements. Attachment of collimator to focus adjustment unit maintains focus longer and allowsa easier focus and positioning.
Patent DE-4008447-A1 (DE)
Inventor: CARPENTER RONALD SHELDON
IPC: F02K1/17
Filed: 1990-03-16
Abstract: A control system for a gas turbine engine (346) receives a signal representative of a first target engine operating condition e.g. temperature (320) and also receives a signal (324) representative of the corresponding actual engine condition. The system produces (322) an error signal, and a gain means (330) adjusts the gain of the error signal to provide a desired change in a controlled engine parameter e.g. the position of a variable exhaust nozzle (VEN) to achieve constant thrust. The output of the gain means is then combined (334) with a target VEN position and used to adjust an actuator (344). Position feedback from a sensor (348) may be employed. <IMAGE>
Patent DE-4008894-A1 (DE)
Inventor: CALL HANS PETER DR
IPC: C12S3/08
Filed: 1990-03-20
Abstract: Process for processing waste paper with enzymatic removal of printing ink, in which a) the redox potential of a solution containing waste paper is adjusted to a value in the range of 200 to 500 mV by simultaneous dosing of oxidizing and reducing agents, b) a lignin-decomposing reaction is initiated by addition of lignolytic enzymes, c) the reaction is continued for approximately 10 minutes by adding 60 to 80 litres/hour of air per 1.5 litres of reaction volume at 40 DEG  C, 0.8 to 2.5 % substance density and a stirrer speed of 1200 to 1600 rpm in a standard commercial flotation installation, and d) the reaction continues for 60 to 90 minutes with a reduced supply of air and at reduced stirrer speed.
Patent DE-4010778-A1 (DE)
Title: Selective removal of cadmium from wet process phosphoric acid
Inventor: FRANKENFELD KLAUS DR RER NAT
IPC: C01G11/00
Filed: 1990-04-04
Abstract: Cadmium ions are removed from wet-process phosphoric acid (A) by (1) liq.-liq. extn. with a soln. (in a solvent which is immiscible with water, aq. salt soln.  or aq. acid) of a salt (I); (2) sepn. of the Cd-ion contg. organic phase; (3) opt. re-extracting the ions from this with aq. acid and (4) opt. processing the Cd-laden re-extract soln. (I) is a salt of an organic prim., sec. or tert. amine, or a quat. ammonium salt.  The new feature is that (I) contains, as anion, chloro complexes of polyvalent metal(s) (M), other than Cd.
Patent DE-4011129-A1 (DE)
Inventor: KELLY THOMAS JOSEPH
IPC: C22C19/05
Filed: 1990-04-06
Abstract: Nickel base superalloys which contain niobium (columbium) to promote gamma double prime strengthening are improved by replacing the niobium with tantalum on an atom-for-atom basis and then heat treating the new alloy at temperatures in excess of those conventionally used for superalloys which include niobium. The resultant tantalum-bearing alloys are found to exhibit increased strength and greater phase stability than corresponding niobium-bearing alloys.
Patent DE-4012197-A1 (DE)
Inventor: KADESCH KLAUS
IPC: B23K35/02
Filed: 1990-04-14
Abstract: The invention concerns a process for making finely divided metal in which molten metal is fed in drops from a crucible into a stream of fluid where the molten metal drops are cooled, and a device for implementing the process and its use. The aim of developing an economical process for converting metals into spherical particles with a narrow particle size distribution and diameters of over 50  mu m and to provide a simple and compact device therefor is achieved by causing the fluid to flow in the opposite direction to that of the molten metal drops and making the distance between the molten metal drop outlet from the crucible and a solidification region in which the molten metal drops solidify at least at their surfaces as small as possible.
Patent DE-4013551-A1 (DE)
Title: High purity copper prodn. by electrorefining - using gas injection to remove electrolyte impurities
Inventor: WANDKE ERNST DR SC TECHN
IPC: C25C1/12
Filed: 1990-04-27
Abstract: In high purity Cu prodn. by electrorefining, an inert and/or reactive, esp. reducing gas (mixt.) is introduced into the electrolyte, the amt. and/or compsn. of the introduced gas (mixt.) pref. being automatically controlled according to the electrolyte compsn. ADVANTAGE - The gas (mixt.) drives gaseous impurities (e.g. O2) and suspended particles (e.g. anode mud) out of the electrolyte so that current efficiency and refined Cu purity are increased and electrolyte life is extended.
Patent DE-4020564-A1 (DE)
Title: Frame element for flat surface covers - has two resilient fingers each with holders to secure cover
Inventor: SUFFA UDO
IPC: B65D43/02
Filed: 1990-06-28
Abstract: The frame element for a flat surface cover or lid (36) has at least one resilient holder for holding a first edge section (38) of the cover (36) whilst bearing members for a definite contact and hold of the second edge section (40) of the cover are provided on a second frame part (14) opposite the first frame part (12). The two frame parts (12,14) are connected together by side frame parts (16). Adjoining the first frame part (12) approximately parallel thereto are two finger parts (20) which are evenly spaced from the first frame part and each finger part has on its end section facing the other finger part a holder (22) which is hook shaped to hold the first edge section (38) of the cover. The contact bearing members associated with the second frame part have ribs (35) which are vertically aligned at right angles to the two bearing edges (28) for the cover. USE/ADVANTAGE - The cover can be easily fitted and removed from the frame yet has childproof safety design.
Patent DE-4027636-A1 (DE)
IPC: F15B15/08
Filed: 1990-08-31
Abstract: A fluid-powered rodless cylinder is described which has a cylinder housing (4) which is completely closed in cross-section and along which a power take-off (1) is guided in such a way as to be locked against rotation, which power take-off (1) is connected to a band (7) which emerges in each case from the end faces of the cylinder housing (4), is fastened to the piston and is run externally over two deflection wheels. 
<??>To avoid leakages when pressure is applied to the cylinder housing (4), it is proposed that the interior of the cylinder housing (4) be subdivided into a piston space (8) in which the piston can reciprocate and also into a band space (9) which is separate from the piston space (8) and is connected to the piston space (8) via a longitudinal slot (10) sealed off by means of a sealing strip (5) and in which the band (7) runs, which in turn is connected to the piston via a force bridge (6) passing through the longitudinal slot (10). 
<??>This construction permits the preferred use of a toothed belt or a chain as the band. 
<IMAGE>
Patent DE-4031489-A1 (DE)
Inventor: BLANK KURT DR
IPC: C23C4/12
Filed: 1990-10-05
Abstract: During the spraying of glazing members made of silicate glass with the aid of a thermal spraying process, in particular with the aid of the flame or plasma spraying process, the glazing members are cooled during the spraying process in the region of the surface attacked by the current of flames or, where appropriate, of hot gas. In this way the formation of dangerous tensile stresses, which can lead to the destruction of the glazing members, is avoided. A flame or plasma spraying apparatus for carrying out the process according to the invention comprises a cooling set to be fastened to the spraying torch comprising tuyeres (24) pointing towards the glass surface, which tuyeres are fed with compressed air or another gaseous coolant under pressure. <IMAGE>
Patent DE-4031865-A1 (DE)
Title: Change-speed gear for bicycle -  has crank spindle connected to chain-wheel by pivoted links to provide stepless variation of speed ratio
Inventor: JACHT HEINZ
IPC: B62M9/08
Filed: 1990-09-18
Abstract: The steplessly variable change speed gear for a bicycle has the cranks mounted on the opposite ends of the spindle (3). The spindle (3) is attached to a disc (2) which is mounted eccentrically inside the chainwheel (1). The disc (2) is connected to the chainwheel by pivoted arms (4) which carry shoes (5) at their outer ends. The shoes (5) have ratchet teeth which engage ratchet teeth formed on the inside of a ring attached to the chainwheel. The pivoted arms enable the eccentricity of the disc (2) relative to the chainwheel (1) to be varied and this feature varies the mechanical advantage of the force exerted by the pedals over the force exerted on the driving chain. USE/ADVANTAGE - Variable speed gear for a bicycle with stepless variation of speed ratio.
Patent DE-4033106-A1 (DE)
Title: Pipe coupling for connecting pipe ends - has sprung holding element as separate component between connector and sleeve
Inventor: FUNK GEORG ING GRAD
IPC: F16L37/098
Filed: 1990-10-18
Abstract: A pipe coupling has a connection element with a mounting bore for a pipe end attachment with sealing ring. A sleeve on the pipe end is inserted into the mounting bore and has an elastically deformable region with a locking groove over the end attachment. A sprung holding element surrounds the surface of the connecting element, locking into a groove on the surface. The holding element is a separate component (10) which connects with the sleeve (54) via removable locking mechanism. ADVANTAGE - Simplified design, greater material choice in design.
Patent DE-4036479-A1 (DE)
Title: Battery-operated electrical device e.g. tooth-brush, screwdriver, torch - has battery charge sensor preventing total drainage of sec. cell battery
Inventor: AZZAM NADIM DIPL ING
IPC: H02J7/00
Filed: 1990-11-15
Abstract: A sensor (8) responds to the battery charging mode to allow the ON-OFF switch (10) for the electrical device to be moved into the OFF position or to be held in the OFF position, via an intermediate electronic control stage (9). - Pref. the sensor also activates a display light (11) indicating battery recharging. A magnetic field sensor, a charging current sensor, or an AC frequency sensor is used.
Patent DE-4038124-A1 (DE)
Title: Programming of logic contact or relay-circuit layouts - using manually-manipulated component symbols placed on sensor matrix
Inventor: KELLE BERND DIPL ING
IPC: G05B19/05
Filed: 1990-11-27
Abstract: The programmable control method involves using a panel (1) with inputs along one edge (3) and outputs along the other. The processing board (4) is the base unit and over this is laid contacting foil with multiple contact fields (5). An interface cable (6) connects the unit to a programming table (7). Optical signals can be transmitted to be reflected by the symbol carrying foils to register a specific function. The functions can be established in relay logic form. USE/ADVANTAGE - For training in stored-program control systems. Does not require computer terminal or software.
Patent DE-4101332-A1 (DE)
Title: Device for cleaning filter layer in waste water clarifier
Inventor: GRABOWSKI GUNTHER
IPC: B01D36/04
Filed: 1991-01-18
Abstract: A circular clarifier tank (1) has a rotating cleaning bridge (13) and is surrounded by an open post-clarifying filter channel (2) with a filter layer (5). Under this invention, the water flows into the channel (2) over the clarifier wall (7) and passes downwards through the filter layer (5) into a clarified water collecting space (3). The bridge (13) extends over the channel and carries equipment for cleaning the filter layer (5). An air pipe (20) extends from the bridge into the collecting space (3) and is fitted with an air distributer (21) located below the filter layer. This filter layer is supported on a perforated plate (6) which extends horizontally from the clarifier wall. A submersible pump (24) delivers rinsing water to a series of pivoted rinsing lances (25) which penetrate under their own weight into the filter layer. Compressed air is supplied by a compressor (15) on the bridge (13). A second and larger submersible pump behind the rinsing lances returns the rinsing water to the inlet of the clarifier. A rinsing box (23) suspended from the bridge (13) dips into the filter layer (5) and extends horizontally over the air distributor (21) and the second submersible pump.