baber/WOPTO huggingface dataset:
Patent DE-3919849-A1 (DE)
Title: Digital filter for video signals - has digital signals with clock pulse frequency, written in memory and read-out at lower clock pulse frequency
Inventor: JUNG FRANK DIPL ING
IPC: H04N5/208
Filed: 1989-06-17
Abstract: The filtering of the video signals is carried out mainly for the purpose of aperture correction. The )video signals in digital form with a first clock pulse frequency are written into a memory. Thee digital signals of several lines are )read-out in parallel with a second, smaller clock pulse frequency. The read-out signals are delayed at least one by a line interval and the read-out and delayed digital signals are added after valuation with filter coeffts. Then they are written into another memory with the second clock pulse frequency and read-out with the first one. Pref. the second clock pulse frequency is one half of the first one. USE/ADVANTAGE - Esp. for wideband signals e.g. for HDTV. Low-cost circuit design with components, suitable for signals of small band width.
Patent DE-3924827-A1 (DE)
Title: Yarn splicer - has cold conductor as additional heat source at splicing head to reduce control needs of heated compressed air
Inventor: WEISSENFELS WOLFRAM
IPC: B65H69/06
Filed: 1989-07-27
Abstract: The yarn splicing appts. to join yarn ends together by heated compressed air, at each winding station of a textile machine, has a cold conductive component (24) at the splicing head as an additional heat source. Pref., the splicing appts. (1), with a cold conductor component as a heating source, is fitted to each winding station, for additional heat at the splicing head (4). The yarn ends (12a,13a) are prepd. for splicing at sections (18,19) above and below the splicing head (4), with cold conductive heating elements (58,59). The cold conductors (24,58,59) are structured to generate a given temp. at a preset nominal voltage, and they are all exchangeable. The cold conductor heaters (24,58,59) are connected through a control (55) to an adjustable DC source. Each splicer (1) is linked to a central nominal value standard for all the splicers, or only a gp. of splicers to set the splicing temp. ADVANTAGE - The system reduces the fine control needed for the heated compressed air, without reducing the splicing quality.
Patent DE-3925871-A1 (DE)
Title: Plastic film bag with prismatic body for fluids - in which elimination of folds when full gives improved appearance and is achieved by forming weak points in side seams
Inventor: KROMER HORST
IPC: B65D75/58
Filed: 1989-08-04
Abstract: A plastic bag for containing fluids has a prismatic body of two films (1) which are connected together with welded seams (2,3) along the long edges. A standing base and upper part are also provided. Visual appearance of the bag improves by formation of symmetrical weak points (5) in the welded seams (2,3). The weak points (5) are formed by (1) cut-outs in the side or (ii) redn. in seam width. The bag comprises two layers, (i) a 10-15 micron polyethylene terephthalate, (ii) 130-160 micron polyethylene. USE/ADVANTAGE - In plastic bags for fluid containment. Bag appearance is improved when full through elimination of irregular folds.
Patent DE-3927480-A1 (DE)
Title: New cycloalkene-di:one cpds. including bis:cpds. - useful as photoinitiator for polymerisation with visible light
Inventor: ALBERT BERNHARD DR
IPC: C07C205/45
Filed: 1989-08-19
Abstract: New carbocyclicc keto cpds. are 4-substd.-3-cyclopenten-, -3-cyclohexen- and -3-cyclohepten-1,2-dione cpds. and analogous bis cpds. of formula (I). X = =N-, =CH- or =CH-CH=N-; R1 = H or 1-6 C alkyl; A = an alkylene completing a 5-, 6- or 7-membered ring, opt. with 1 or 2 Me substits.; n = 1 or 2; if n = 1, B = phenyl (opt. substd. by amino, di-1-4 C-alkylamino, 1-4 Calkyl, 1-4 C alkoxy or NO2, N-phenylamino, -NH-CO-NH2, 1-4C alkylamino (in which the alkyl gp. is opt. substd. by phenyl and/or OH or COOH) and, if X = =N-, B may also = OH; if n = 2, B = phenylene with up to three 1-4 C alkoxy substits. Pref. n = 1, X = =N-, B = OH, -NH-phenyl (opt. with 1 or 2 NO2 substits.), -NH-CO-NH2 or phenyl (opt. with 1 or 2 NH2, N,N-di-1-4 C alkylamino, 1-4 C alkyl or 1-4 C alkoxy substits.); or n = 1, X = =CH- and B = Ph; or n = 2, X = =N- and B = 1,3- or 1,4-phenylene, opt. substd. by 1-4C alkoxy; A = -CMe2- or -CMe2-CH2-. (I) are prepd. by condensing the corresp. 3,4-dioxo-cycloalkenal or beta-(3,4-dioxocycloalkenyl)-acrolein with NH2OH, hydrazine or amines, pref. in solvents and opt. in the presence of catalysts. U - () Cn  uSd as Snsilisrs fgr inititin photopolymerisation with visible light.
Patent DE-3933119-A1 (DE)
Title: Bearing pin incorporated into radial roller bearing - has at least one cavity in line with welding seam and radial holes
Inventor: HUGELMANN PETER
IPC: F16H53/06
Filed: 1989-10-04
Abstract: The bearing pin (1) is in the form of a ball race rolled out to a circle from a steel strip and incorporated into a radial roller bearing. Its length is larger than the axial length of the radial roller bearing. The two bearing pin (1) ends stick out from the radial roller bearing. The bearing pin (1) has at least one cavity (5) starting from one end of the bolt. The cavity (5) is next to the welding seam (4) along which may be spaced apart radial holes. USE/ADVANTAGE - The hollow bearing pin can be incorporated in the adjacent component at a pre-set position. The bearing may be for a camshaft for an IC engine.
Patent DE-3935354-A1 (DE)
Title: Flexible mat made in long lengths - is for use on railway tracks for sound proofing and has smooth protective finish and reinforced inlay with hollow voids
Inventor: ENGST WILHELM DR
IPC: F16F1/377
Filed: 1989-10-24
Abstract: The flexible mat is designed to be produced in long lengths. It has a smooth protective layer, (1) on its upper surface and a reinforced inlay. The mat is produced in one piece with hollow voids (4,5) running transversely, these voids being triangular in section so the webs of mat material separating them form a woven truss. Alternately various arrangements of cylindrical voids may be used. Semicircular action - or even H-section voids may also be used. USE/ADVANTAGE - Flexible mat is not damaged by ballast when used on railway tracks for sound proofing.
Patent DE-3936583-A1 (DE)
Title: Drawer with stationary and displaceable guide rails - incorporates modular rails adaptable for universal use
IPC: A47B88/14
Filed: 1989-11-03
Abstract: The drawer comprises two opposite drawer guides each of which has a stationary guide rail fixable on the carcase and a displaceable guide rail. The drawer has two opposite modular rails (10) which can be moved unsliding with the socket (34) which is held by the drawer guides. These modular rails form in plan view frame elements for the drawer which are uncovered at least partially from the above wherein each modular rail has longitudinally extending standarised fastening element (20,22,24,26) with which connecting elements holding the socket part (34) can be brought into positive engagement. Each stationary guide rail (50) is enclosed by a modular rail (10) which is displaceable relative to same and the retaining arms which fix the stationary guide rail on the carcase are each guided through a longitudinal recess (64) of the modular rails (10) out towards the carcase (58). USE/ADVANTAGE - The drawer can be modified for universal use.
Patent DE-3939999-A1 (DE)
Title: Coupling for connecting two rail vehicles - has rotatable locking bolt and spring to release coupling claw
Inventor: PIRAGS SIEGFRIED
IPC: B61G1/06
Filed: 1989-12-02
Abstract: The coupling between two wagons on an underground mine railway, consists of a housing (3) with a lug (4) with a hole (5) for a bolt for attaching to a wagon.  The housing (3) has a U-shaped cross-section which receives the claw (7).  This claw (7)pivots on a bolt (6) and has a pin (10) which engages a hole (17) in the coupling rod (16) of the second wagon. When the pin (10) has engaged the hole (17) it is held in place by a locking bolt (24). The coupling is released by rotating this bolt so that a slot (45) faces the claw (7) and allows the spring (20) to rotate the claw (7) in the clockwise direction. USE - Coupling for rail vehicles.
Patent DE-3941081-A1 (DE)
Title: System involving lost rock drills and probes - employs drill of appropriate dia. with lateral slots for expulsion of drilled-out material
Inventor: MAURER MICHAEL
IPC: E21B17/04
Filed: 1989-12-13
Abstract: The equipment involves a specially hardened point screwed on to the end of a tube by means of a fine thread. The tube is fitted with a conical cover on its upper side, and at the upper end of the cover is an accommodation for a correspondingly threaded striker and ramming device. A clamp and pick-up device can be fitted to the equipment which will take hold of lost drilling and splitting tools, and remove them from the ground. USE/ADVANTAGE - For rock drilling work, to recover lost drilling and splitting tools from bore holes, using equipment which is compatible to any known type of drilling gear.
Patent DE-3942601-A1 (DE)
Title: Checking admissibility of coupling 2 power sub-networks in parallel - constructing difference for each sub-network between measured and reference voltages
Inventor: WIEGAND RUDOLF DIPL ING
IPC: H02H11/00
Filed: 1989-12-21
Abstract: The time changes of the a.c. voltage in each sub-network, i.e.  the field voltage (VF), is compared with the time changes of a reference voltage (VR, VR1) which is the same for all field units. The comparison takes place in the field unit associated with the sub-network concerned. A first difference is formed for the electrical voltage, phase and frequency and transferred to an evaluator (SE). The vaaluator compares the first difference for the first sub-network with the first difference for the second sub-network to form a second difference. This second difference is compared with given limits to devide whether the parallel configuration should be initiated. USE/ADVANTAGE - Checking whether to connect in parallel two sub-networks in supplying electrical power in switchgear.  Simple. @(8pp
Patent DE-4009391-A1 (DE)
Inventor: GEUS EWALD
IPC: B23K9/133
Filed: 1990-03-23
Abstract: Drive device for continuously consumable wire electrodes of electric welding torches, comprising a wire drive roller (5) arranged in a housing (1) having a handle (2) and a drive motor acting on the wire drive roller (5) via gearing (6) and arranged outside the wire feed axis, the drive unit consisting of drive motor (4), gearing (6) and wire drive roller (5) being arranged in a housing part (3) formed outside the area of the handle (2) enclosed by the hand. The consumable wire electrode and the supply lines are passed through the handle (2), and the motor shaft (10) of the drive motor (4) is arranged at right angles to the wire feed axis (8).
Patent DE-4014989-A1 (DE)
Title: Mfr. of spin-drawn synthetic fibre filament batt - has separate supplies for cooling air and for process fluid in drawing nozzle
Inventor: BALK HERMANN DIPL ING
IPC: D04H3/16
Filed: 1990-05-10
Abstract: A spinning head produces at least one single curtain of thermoplastic filaments which enter a cooling chamber where they are exposed on both sides to a current of cooling air. The cooling air is drawn off by a suction duct and is vented or recirculated. - After a clear section where uncooled prim. process air is entrained, the filament curtain enters a venturi shaped draw nozzle which has a feed for a gaseous sec. processing medium. The filaments are deposited on a conveyor to give a batt. The prim. processing air can be drawn in through perforated walls or supplied under pressure. The sec. process medium can be air or steam or a mixt. of both.
Patent DE-4016574-A1 (DE)
Title: Terminal voltage limiter for three=phase alternator - uses overvoltage-dependent switch for automatic disconnection of exciter winding
Inventor: MAASS MANFRED DIPL ING
IPC: H02H7/06
Filed: 1990-05-23
Abstract: The excitation winding (5) is coupled via the switch path (13.1) of a controllable switch (13.2) to the output of a regulator (6), controlling excitation current, and the output is coupled to a free wheeling diode (8). In cooperation with the set terminal (D4) a voltage discriminator (10) output, in turn, cooperates with the control input of the switch (13). In parallel with the exciation windings, a series circuit of a Zener diode (14) and a reverse flow prevention diode (15) is directly coupled. The series circuit may be mounted in the fixed part of the generator. USE/ADVANTAGE - Simple overvoltage protection for vehicle power supply.
Patent DE-4016927-A1 (DE)
Inventor: HAUSSMANN AUGUST
IPC: B23B51/04
Filed: 1990-05-25
Abstract: A milling cutter is proposed which serves to produce circular-cylindrical wall recesses or apertures, and in particular to produce bores for the assembly of hollow-wall sockets of an electrical installation. So that the hollow-wall sockets to be inserted can also be inserted into the bore in a recessed position in the area of their supporting flanges angled to the outside, an additional hole-edge drill bit (18) is put onto a commercially available hollow drill bit (2), which hole-edge drill bit (18) in turn has additional cutting teeth (20) for producing an edge recess (drawing hereto). <IMAGE>
Patent DE-4019317-A1 (DE)
Title: Measuring uniformity of vehicle tyre - measuring flexural stiffness in zenith region at each position of circumference in radial direction
Inventor: RUETHRICH HANS-JOCHEN DIPL ING
IPC: G01M17/02
Filed: 1990-06-16
Abstract: The inflatable tyre to be tested can be placed between two support rollers (1) at least one of which can be driven by a motor to set the tyre in rotation. A measuring roller (2) is coupled to a force measurer. The measuring roller is radically movable via two ball bearings and supports itself against a pressure measuring cell (4) coupled to a recorder for drawing the measuring curves. A threaded spindle (6) serves to press the measuring roller against the axial centre region of the tyre at a certain force. The width of the measuring roller is variable to cope with tyres of various widths. USE - Discovering cause(s) of uneven running, esp. irregularities in tread pattern or inner lining.
Patent DE-4024800-A1 (DE)
Title: Reflective shunt diode RF amplitude modulator - has shunting diodes spaced so transmissive line sections have non-commensurate length
Inventor: KOENIG MARY K
IPC: H03C7/02
Filed: 1990-08-04
Abstract: The transmission line length sections between diode pairs are selected so that a minimum in the frequency/attenuation curve resulting from one transmission line section/diode pair is cancelled by a maximum in the frequency/attenuation curve from another transmission line section/diode pair. The superposition of the frequency characteristics from all transmission line section/diode pairs results in a structure in which reactive cancellation occurs over the entire operating frequency range. - Consequently, it is not necessary to saturate the shunting diodes at the low band end to maintain maximum attenuation. In addition, to improve insertion loss, capacitive stubs are located along the transmission line which modify the filter characteristics when the shunting diodes are turned ''off''.
Patent DE-4033375-A1 (DE)
Title: For alphanumeric key field of electronic typewriter - has circuit for changeover and reset functions to enable increased text entry rate
Inventor: PFEIFER WERNER
IPC: G06F3/023
Filed: 1990-10-18
Abstract: The control circuit is for the alphanumeric key field of an electronic typewriter or a computer with a changeover key. It contains a memory element which is set by operating the changeover key and reset by operating another key. A switching arrangement (21,22) produces a reset signal for the memory element (12) for each operation of any key whose function or character is changed by the changeover key. Alternatively or additionally, a reset signal is generated by a timer (25) after a defined time following setting of the memory element. USE/ADVANTAGE - The arrangement enables an increase in the rate of text entry to be achieved by simplifying the key stroke operations required.
Patent DE-4033388-A1 (DE)
Title: Modification of thin film gas-sensor to avoid degradation - by adding mixed oxide(s) of alkali metal and tri:valent or higher valency metal to outer layer
Inventor: FRIESE KARL-HERMANN DIPL PHYS
IPC: G01N27/416
Filed: 1990-10-20
Abstract: On a substrate (10), pref. a solid electrolyte, an electrode layer (11) and porous covering layer of a ceramic material are deposited to construct a gas sensor. The feature is that the porous covering layer (12) and/or its pores (13) contain at least a mixed oxide of at least an alkali-element, pref. Li, and a trivalent element with a thermally stable oxide pref. from Groups IIIa, IIIb or IVb of the Periodic System, pref. Al, Ga, B, Y,Sc, Zr or a Lanthanide element. The concn. of each of the constituents is pref. 0.2-99.8 mole %. - Also claimed is the use of an additional layer incorporating the mixed oxide, pref. directly over the electrode and pref. under a covering layer. - The covering layer also pref. contains catalyst. A mfg. process is also claimed.
Patent DE-4033896-A1 (DE)
Title: X=ray scattered radiation screen mfr. for stability - by hot press bonding two-layer material strips and reheating thermoplastic layer using less starting material
Inventor: CYROL UDO
IPC: B32B7/02
Filed: 1990-10-25
Abstract: Mfr. involves forming a starting material from radiation absorbent and transparent layers, cutting the material into strips and fixing the strips together opt. aligned to a focus in an inclined position. (a) Thick self-adhesive thermoplastic foil, as radiation transparent spacer layer, is applied onto a radiation absorbent foil by hot pressing to form a two-layer starting material; (b) material is cut into two-layer strips; and (c) strips are hot press bonded together. USE - X-ray scattered radiation screen.
Patent DE-4035300-A1 (DE)
Title: Poly-ter:phenylene cpds. with very high thermal stability - have opt. substd. ter:phenylene gps. linked by direct bonds or by ether, thioether, amide or ester gps.
Inventor: NAARMANN HERBERT DR
IPC: C08G75/0263
Filed: 1990-11-07
Abstract: Polyphenylene cpds. of formula (I) are claimed; R = H, Ph, naphthyl, methoxyphenyl, phenoxyphenyl, thiophenyl, phenylthiophenyl or 1-12C alkoxy; X = direct bond, O, S, CO, CONH, or COO; n = degree of polymerisation. (I) are prepd. e.g. by polycondensation of p, p'-dihalo-terphenyls and corresp. OH, COOH or COMe cpds. or by reaction of 1,3-bis-(4-bromophenyl)-acetone with benzil to give 2,5-di(4-bromophenyl) -3,4-diphenyl-cyclopentadienone, followed by polymerisation and reaction of the in-chain cyclopentadienone gps. with norbornadiene or acetylenes. USE/ADVANTAGE - The invention provides new polyphenylenes which are soluble and fusible and have very high thermal stability. (0/0)
Patent DE-4037354-A1 (DE)
Title: Conveyor sprocket chain - has bolts with same cross=section over their length without shoulders for cheaper mfg. and longer life in hot environments
Inventor: TWARDZIK GEORG DIPL ING
IPC: F16G13/08
Filed: 1990-11-20
Abstract: The conveyor sprocket chain, especially for movement of material through a hot processing zone such as in the glass industry where hot glass products are at temps. of 750 deg.C and the temp. at the conveyor chain is of the order of up to 400 deg.C, has the same profile cross section (6) for all the bolts (2) passing through all the chain links, over the whole bolt length, without shoulders. The side bars (1) in each chain link alternate between two mirror-image profiled bearing holes (4) and two round holes (5). ADVANTAGE - The chain structure gives more economic mfg. with increased working life and fewer stoppages as problems of soiling and occasionally through projecting rivet heads are avoided.
Patent DE-4037374-A1 (DE)
Title: Video recorder for letter box television signals - has additional information recorded along edge strips with luminance channel switching
Inventor: KLUTH HANS-JUERGEN DIPL ING
IPC: H04N7/015
Filed: 1990-11-23
Abstract: The recorder is used for letter bo television signal of 16.9 image format compatible with 4.3 receivers, which contain additional information in the two edge strips above and below the image required by a 16.9 receiver for providing an image resolution similar to that of the source signal. The entire bandwidth of the additional information is retained by recording it in the edge strip lines, in combination with corresponding switch overs via the luminance channel. - The additional information may be used to modulate the video signal colour carrier.
Patent DE-4041267-A1 (DE)
Title: Application of security strip to paper - in which security element wound right side up on bobbin with mechanical non-twist feed to fourdrinier of paper-making machine
Inventor: KAULE WITTICH DR
IPC: D21H23/24
Filed: 1990-12-21
Abstract: To apply a security strip to paper such as threads with symbols, or optically active holograms, etc., the security strip is a continuous ribbon wound on a bobbin with the right side up. The ribbon is fed mechanically to the fourdrinier of a papermaking machine so that the ribbon cannot twist under normal conditions.
Patent DE-4102784-A1 (DE)
Title: Multiwire electric connection terminal - with resilient rectangular frame of spring steel against which pref. copper contact elements are held by tongues gripping wire ends
Inventor: EISERT KLAUS
IPC: H01R13/514
Filed: 1991-01-31
Abstract: The bared ends of wires (2) inserted into a housing (3) are retained by the pressure of resilient tongues (6) against contact elements (5) within the frame (4). This is formed with a substantially rectangular cross-section at right angles to the length of the wires (2). An additional contact (12) co-operating with the resilient frame (4) holds an equipment pin (13) against the ends of the tongues (6). A release element (14) terminated in a wire guide (15) can be pushed down by a screwdriver. USE/ADVANTAGE - In e.g. building wiring and control systems, a simplified structure improves wire contacts and galvanic interconnections.
Patent DE-4106425-A1 (DE)
Title: Conveyor belt in kit form - has width adjustment device in belt body segment for different width transport materials
Inventor: HEIL KLAUS
IPC: B65G21/20
Filed: 1991-02-26
Abstract: The kit for a conveyor belt has at least one belt body segment (9) which determines the length of the belt. An NC-controllable width adjustment device (11) is mounted in the segment (9) across the running direction (10) of the belt so as to adapt to different width material (12) being transported. A head piece (5) an be mounted at each end (2,3) of the conveyor belt whereby several belt body segments (9) can be inserted between the head pieces (5) wherein each two segments can be connected by a centre piece (17). USE/ADVANTAGE - This modular design allows the conveyor belt to be quickly adapted to different uses.