baber/WOPTO huggingface dataset:
Patent DE-2710146-A1 (DE)
Title: Windmill blades for display surface - has inbuilt generator producing power for display bulbs mounted in blades
Inventor: HOFMANN HANS
IPC: G09F9/00
Filed: 1977-03-09
Abstract: A display for advertising purposes is formed by a wind-powered generator producing electricity for display bulbs located in windmill blades (4, 4'). The latter have either strip (5) or circular bulbs inset into the surface. The windmill blade shaft is mounted on a shaft (3) on a tower (1) that is free to rotate. An auxiliary blade maintains the position of the main blade facing the wind. A generator is driven to produce electricity for the display.
Patent DE-2717122-A1 (DE)
Title: Remote control population warning system - has transmission channel divided into wideband and narrow band channels used in opposite directions
Inventor: MOSCH RUDOLF DIPL ING
IPC: H04M11/04
Filed: 1977-04-19
Abstract: The system a large number of remote control stations from which terminal stations can be reached through a remote control network with transit nodal stations, end nodal stations and local nodal stations. Return signals are transmitted by sections. The transmission channel available in the remote control network is divided into a wideband channel for the main transmission direction, and a narrow band channel for the opposite direction. Normally the wideband channel is used in the top to bottom direction, and the narrow band channel in the bottom to top direction.
Patent DE-2730714-A1 (DE)
Title: Bathroom cabinet medicine drawer - has tongue and slot hinge joint inside cabinet preventing accidental falling out
Inventor: HELING PAUL
IPC: A47B67/02
Filed: 1977-07-07
Abstract: The bathroom cupboard has a chest-like drawer (16) for medicines, or cosmetics on one of its inner shelves. This can be swung out on a horizontal plane and is attached to the cupboard body by releasable slot-in connections mounted on one side. This connections can be a projection (17) on one side of the drawer which engages in a corresponding opening (19) in the cupboard. On the side remote from this connection is a handle which can be formed by a key (28) which fits into a lock (27) set eccentrically in the front (18) of the drawer. Since the drawer swings open in the cupboard, its weight is held by the cupboard in any position so that there is no danger of its falling out.
Patent DE-2736934-A1 (DE)
Title: Rectifier distortion reduction system - uses transistor switches and transformer having low losses and giving low distortion on AC input
Inventor: BOEHRINGER ANDREAS PROF DR ING
IPC: H02M5/44
Filed: 1977-08-16
Abstract: The circuit reduces rectifier generated distortion on the AC side. It comprises a rectifier bridge(3) coupled to the supply through a choke (2). The rectifier output feeds a centre tapped transformer via transistor switches (11, 12) at each end of the winding. The transformer output is connected by thyristors and diodes(13-20) to one pole of the DC(5), the other pole being directly connected to the rectifier. The transistor switches and the transformer output switches are controlled to give unidirectional quasi-sinusoidal output to the DC system. The AC side current is thus also sinusoidal. Smoothing can be added to the DC system.
Patent DE-2738371-A1 (DE)
Title: Tape recorder pressure roller moving device - uses electric motor or mechanical drive and lifting magnet to put roller in playback and pause positions
Inventor: STRAUSAK BENEDIKT
IPC: G11B15/10
Filed: 1977-08-25
Abstract: The mechanism used to move the pressure roller employs two movement steps into the playback position (3). The first step is a readiness or pause position and the second step is the playback position, the first step being relatively long. The first step is executed e.g. by a motor drive or mechanical drive and the second step is executed very briefly by the lifting magnet (2). The pressure roller (1) may be positioned on one end of a spring-loaded lever (21) and may also have a dog (8) engaging with play in an opening (9) of a head slide (10).
Patent DE-2739590-A1 (DE)
Title: Granular minerals treated with hot reaction gases - in long calcining chamber, esp. suitable for limestone
Inventor: SINDELAR GUENTER DR ING
IPC: C21B13/00
Filed: 1977-09-02
Abstract: The minerals are fed down a vertical pipe (a) into the vertical inlet (b) of a long closed chamber (c) with a horizontal base leading to a bottom outlet (d). Near outlet (d) is a gas inlet duct (e), whereas a gas outlet duct (f) is located at the top of inlet (b). Chamber (c) is vibrated and the gas flows in countercurrent to the minerals. The roof of chamber (c) slopes upwards the outlet and (d), but the highest point of the roof is below the top of inlet (b). Baffles (g) which slope upwards are pref. located at the outlet end of chamber (c); and pipe (a) has prf. top and bottom swivel shutters. Pipe (a) pref. fits in a lid on inlet (b). Used esp. for the de-acidification or calcining of limestone, or drying and calcining lime.
Patent DE-2740224-A1 (DE)
Inventor: BALLARD DAVID BRIGGS
IPC: G01D13/02
Filed: 1977-09-07
Abstract: A microscopic length scale typically about 50  mu m long and graduated in several intervals ranging from 1  mu m to 20  mu m. The scale is useful in calibrating the magnification of scanning electron microscopes (SEMs) and other electron imaging instruments. The scale comprises alternating layers of two metals deposited on a substrate. The two metals have substantially different electron emission coefficients to provide contrasting emission signals when scanned by an electron beam. One of the metals, preferably gold, is deposited in uniform layers about 40-80 nm thick. The other metal, preferably nickel, is deposited in several layers ranging from 1  mu m or so thick near the substrate to 20  mu m thick in the outermost layer. The resultant multilayer composite is cut into one or more samples and each sample is mounted on edge. The exposed edge is ground and metallographically polished and a microscopic indentation is made in the substrate near the first gold layer. The indentation defines a reference region, and the distances between the first gold layer and the subsequent gold layers in the reference region are measured. The measurement is made using a similar sample which was previously calibrated with the aid of a polarizing laser interferometer.
Patent DE-2740598-A1 (DE)
Title: Fire extinguisher control panel for vehicle - has self-contained control circuit with recessed operating button covered by removable safety flap
Inventor: SCHULTE-FRANKENFELD MANFRED
IPC: A62C3/07
Filed: 1977-09-09
Abstract: The fire extinguisher control panel for a vehicle is mounted as a self contained unit on the dashboard. The unit (2) has its own power suppy and includes warning and fire indicator panels (6, 7). The extinguisher release button (13) is mounted in a recessed position and is covered by a safety flap (9). With the safety flap removed the recess is shaped to allow access to the release button from the front or from the bottom or top.
Patent DE-2748694-A1 (DE)
Title: Regulating and angle measuring unit - has wobbling disk and angle measuring device mounted coaxially with electromagnets
Inventor: RAPP DIETER ING GRAD
IPC: H02K24/00
Filed: 1977-10-29
Abstract: The monitoring unit has a stator with electromagnets mounted on a ring. A rotor is rotatable w.r.t. the stator, whose output shaft is connected by a diaphragm to a wobbling disk. The latter faces the electromagnets and is made to wobble by consecutive excitation of electromagnets. An angle measuring device (20) is mounted coaxially with the electromagnets (3) in the same radial plane, and an electronic signalling system (17) is mounted on the stator (1). Rotor (8) and stator (1) are connected by a bearing (10), and have coaxial surfaces (5a, 11a) and/or rectangular end surfaces (5b, 11b).
Patent DE-2748713-A1 (DE)
Title: Stabiliser for articulated train coupling section - has paired hydraulic dampers resisting excessive jack-knifing and pressure storage
Inventor: CAPEK PETER
IPC: B62D13/00
Filed: 1977-10-29
Abstract: The stabiliser influences jackknifing angle between coupled units of articulated train. The hydraulic stabiliser system has paired, opposite acting cylinders. The stabiliser system becomes active when a specified jackknifing angle has been reached. The hydraulic cylinders (13, 14) and (15, 16) act as preloaded damping cylinders in the stretching direction. The paired, opposite acting cylinders can be connected to a common pressure storage cylinder (20, 21). The connection to pressure storage may have non return valve in the direction of the storage cylinder.
Patent DE-2749754-A1 (DE)
Title: Di:alkyl carbonate esters prodn. by ester interchange - of di:methyl carbonate and alcohol, using (cyclo)paraffin as entrainer for methanol
Inventor: FISCHER KARL DR
IPC: C07C68/06
Filed: 1977-11-07
Abstract: In the prodn. of carbonate esters (I) of the formula O=C(-O-R)2 (in which R is an organic radical with at least 2C) by ester interchange of dimethyl carbonate (II) with an alcohol R-OH, the MeOH formed is removed azeotropically with a 5-8C (cyclo)paraffin. The process is economical and does not necessitate the use of special conditions. (I) are intermediates for the prodn. of pharmaceuticals and plant protection agents.
Patent DE-2752599-A1 (DE)
Title: Grinding disc locking device on plain shaft - has deformation of locking member released by pressure of auxiliary member resulting in locking action
Inventor: BIRO BELA DIPL ING
IPC: F16C35/063
Filed: 1977-11-25
Abstract: The method of securing a member on a plain shaft includes mounting a disc on the shaft by deformation of a boss which is integral with it. Then another member is fitted on the shaft, which is forced against the first member. This release the boss, but the flange is deformed, acting as a locking member against the second member. Thus a ball bearing (4) is held against a collar (5) on a spindle by the boss of a labyrinth seal (3) under the pressure of a collar (1) which is the first member. An outer sleeve (2) is then screwed over the outside of the labyrinth seal, compressing the flange of the collar. This has the locking effect.
Patent DE-2753604-A1 (DE)
Title: Electrographic stencil paper with PVC recording film - and layer contg. hydrogen chloride acceptor, eliminating odour
Inventor: KIHARA KEIICHI
IPC: B41N1/24
Filed: 1977-12-01
Abstract: Electrographic stencil paper has a recording film layer based on a synthetic resin contg. Cl and an agent (I), which captures HCl. The material consists of an electrically conductive paper substrate and a recording layer of PVC, with an intermediate or top adhesive layer contg. (I). Suitable (I) are ureas and their salts, quat. ammonium cpds. guanidines and their inorganic salts and alkali(ne earth), Al, Cu, Fe and Pb cpds. This matrix paper is used for stencil cutter and image-telegraphy. The release of a disagreeable odour when using an ordinary resin is eliminated, without impairing the properties of the resin.
Patent DE-2756427-A1 (DE)
Title: Body cavity measuring probe - has thread stretched across two retractable sensing arms giving required measurement in extended position
Inventor: KURZ KARL-HEINZ DR MED
IPC: A61B5/107
Filed: 1977-12-17
Abstract: The medical probe for measuring the inside of a body cavity, e.g. the uterus has a handle for remote operation carrying a tube (11) inside which the measuring head is retracted before insertion. This head has two resilient arms (2) which spread apart when moved outwards beyond the end of the tube. The arms are mounted on a hollow spindle (1) which is advanced or retracted by a sliding part of the operating handle. A thread passing through the spindle travels around a sensor (4) on the tip of one arm to another sensor (3) on the tip of the other arm. The length of this thread between the two tips gives the required dimension, this being indicated on a scale on the handle.
Patent DE-2757173-A1 (DE)
Title: Acetic acid and acetic anhydride prodn. - by oxidn. of acetaldehyde in presence of aromatic solubiliser for metal acylate catalyst
Inventor: ERPENBACH HEINZ DIPL CHEM DR
IPC: C07C51/235
Filed: 1977-12-22
Abstract: Continuous prodn. of acetic acid and acetic anhydride comprises liq. - phase oxidn. of acetaldehyde with O2 gas using Cu acylate and Co acylate as catalysts in a diluent. The reaction is carried out in presence of 0.05-5(0.05-2) wt.%, on the mixt., of an aromatic cpd. of formula (I): (R=OH, COOH, COOCH3, COOC2H5;R1 is as R or OCOCH3,NH2 or NHCOCH3). Addn. of (I) minimises deposition of catalyst salts in the reactor.
Patent DE-2757471-A1 (DE)
Title: Safety valve for water heaters - has internal wall with relief aperture, subjected to high low speeds
Inventor: HENDRICK FREDERICK WOODSON
IPC: F16K17/00
Filed: 1977-12-22
Abstract: The safety valve reacts to temp. and pressure. It has a valve housing (10) with inlet, outlet and relief outlet. An internal wall (24) divides the housing into a circulation chamber (16) connected to in-and outlet and a relief chamber (26) connected to the relief outlet. The wall has a relief aperture (28) with valve seat (30). The relief chamber contains a movable valve member (34) acting with the seat, and is pressed against it by an elastic pre-tensioning element (62) also located in the chamber. The circulation chamber contains a temp.-sensitive actuating member (90) projecting out of the housing inlet. The chamber is actively connected with the valve member via a coupling element, to allow an actuating force transmission.
Patent DE-2804644-A1 (DE)
Title: Heat exchanger using metal tubes bonded to plates - where tube is pressed into oval shape to permit extn. of forming mandrel
Inventor: GLASS MICHA
IPC: F28F1/14
Filed: 1978-02-03
Abstract: A thermally-conducting joint is made between a tube (a), through which a heat transfer medium flows, and a plate (b). Tube (a) is provided with an anchoring device (c) which possesses a higher hardness than plate (b), e.g. a metal wire (c) wound round tube (a). A mandrel is tehn inserted in a tube (a), and pressure is applied by two dies (d, e) in one direction (x) to force wire (c) into plate (b) to make the joint (abc). Two more dies (f, g) then apply pressure in a direction (y) at 90 degrees to direction (x) to cause plastic deformation of tube (a) so the latter is converted from a round tube to an oval tube (a), permitting easy extn. of the mandrel. Either a press or a rolling mill can be used for the forming operations. A rapid and inexpensive process and machinery for mfg. heat exchangers.
Patent DE-2815920-A1 (DE)
Title: Mounting clip for TV CRT cable plug - has metal clip edges cut into cable outer insulation until contact with screen is made
Inventor: RILLING HANS DIPL ING
IPC: H01R4/64
Filed: 1978-04-13
Abstract: The cable has a screen which is in contact with the chassis when the cable is fastened to the TV receiver chassis. The metal clip has two arms (9-11) enclosing a space corresponding to the dia. of the cable (8) screen (12). Their edges cut into the cable (8) outer insulation (13) until a direct contact with the screen is achieved. A large projection (15) of the metal clip extends through the chassis plate (14). It has a spring plate (16) connected with it. A small peg (17) remote from the projection (17) steadies the assembly.
Patent DE-2824068-A1 (DE)
Title: Three point anchor seat belt locking - has bow-shaped swivelling locking arm operated by thumb rest fitted at side (SW 27.12.77)
Inventor: PILHALL STIG TORE LENNART
IPC: A44B11/25
Filed: 1978-06-01
Abstract: A locking device for three-point anchor seat belts can be operated by one hand. The locking device (1) has a catch mechanism at one end and a swivelling locking arm (2) at the other end. The free end of the locking arm has a tip (3) which engages with the catch mechanism, when the arm (2) is swung into locking position. The side of the locking arm (2) is fitted with an operating arm (5) riveted to the side surface of the arm, so that it swivels together with the arm. To carry out the locking of the belt after it has been put on, the user inserts the thumb of one hand into the strap creating a loop. Subsequently sufficient length of strap is coiled-off off from the retractor spool to be able to slip the loop onto the locking arm (2). At the same time the thumb inserted into the loop comes to rest on the horizontal surface of the operating arm.
Patent DE-2828043-A1 (DE)
Title: Bitumen roll prodn. system - applies fusible adhesive to leading edge or mandril using spray nozzles at shearing position
Inventor: SYLVEST ERIK DIPL ING
IPC: B65H19/28
Filed: 1978-06-26
Abstract: The system produces stable rolls of bitumen strip etc. for roofing and other sealing purposes. A fusible adhesive is applied to the leading edge of the strip (2) and/or to the mandrel (1) onto which it is wound. At the shear, the adhesive can be applied at both sides of the cut, and that applied to the leading edge can have a longer cooling time than that applied to the trailing one. Spray nozzles with valves can be mounted on both sides of the shear, typically of the solenoid-operated needle type. The system greatly speeds up the winding operation onto the mandrel and the securing of the trailing strip edge prior to despatch.
Patent DE-2831831-A1 (DE)
Inventor: PERNER JOHANNES DIPL CHEM DR
IPC: C07F9/09
Filed: 1978-07-20
Abstract: For the Contracting States : BE, CH, DE, FR, GB, IT, NL, SE 1. Compounds of the formula I  see diagramm : EP0008365,P8,F1  where R**1 and R**2 are identical or different and denote C1 - to C3 -alkyls, and Me stands for an alkali metal, ammonium or the equivalent amount of an alkaline earth metal. For the Contracting State : AT 1. A process for the production of compounds of the formula I  see diagramm : EP0008365,P8,F1  where R**1 and R**2 are identical or different and denote C1 - to C3 -alkyls, preferably methyl or ethyl, and Me stands for an alkali metal, ammonium or the equivalent amount of an alkaline earth metal, characterized in that one molar part of a dihydrogen phosphate of the formula II Me**(cation)H2 PO4 **(anion) or a mixture of one molar part of orthophosphoric acid with the necessary amount of a base of the formula III or IV to form the dihydrogen phosphate MeOH or MeOOCR is reacted with 2 to 2.1 or, if a base of the formula III is used, 3 to 3.15 molar parts of a carboxylic acid anhydride of the formula V  see diagramm : EP0008365,P8,F2  Me being defined as for formula I, and R standing for R**1 and/or R**2 as defined for formula I.
Patent DE-2832900-A1 (DE)
Title: Laminated wall structure for arc quench chamber - has layers of system with high dielectric polarisability, magneto-ceramic and/or cpd. releasing promoter
Inventor: SARKANY ANDREAS DR
IPC: H01H9/34
Filed: 1978-07-27
Abstract: Laminated structure for arc quench chambers, esp. chamber walls, with layer(s) of insulating material, has >=2 different layers selected from (A) systems with high dielectric polarisability, (B) magneto-ceramic systems with magnetic properties and (C) cpd(S). releasing elements and/or cpds. which promote the quenching strongly under the influence of the electric arc. These layers are firmly bonded together. The laminate has partic. good quenching properties and can withstand very high thermal stresses without great loss of function capacility. Also, the formation of conductive deposits on the surface of the laminate is suppressed.
Patent DE-2835448-A1 (DE)
Title: Electronic switch and sensor for model railways - provides impulse operation with contactless switching and sensing
Inventor: MURMANN VOLKER
IPC: A63H19/24
Filed: 1978-08-12
Abstract: A contact and voltage controlled electronic switch and sensor are used for model railways. Pure electronic contactless switching and sensing of impulse operation are obtained either by touching of a sensor contact surface or through a voltage impulse at the control input which can be produced by electronic, electromechanical or electromagnetic construction elements. A short impulse and permanent voltage from the switches and keys is obtained during switching. A new impulse is not produced by repeated touching of the switch and key when these have previously been switched. Electric interdependence is given to any number of train units. During switching through of one unit the other connected units are either cut off or are switched through with it in accordance with the application required and with an indication of the switching situation by an indicator light.
Patent DE-2835781-A1 (DE)
Title: Vacuum cleaner nozzle - has suction duct in which support roller with slit on either side, is pivot mounted
Inventor: SIMON DIETER ING GRAD
IPC: A47L9/02
Filed: 1978-08-16
Abstract: The vacuum cleaner nozzle has a t least one suction duct (3) running crosswise to the operating direction of the nozzle (1) and connected to the suction pipe by means of a suction opening (4). The nozzle (1) is supported on the surface being cleaned by a pivot mounting support. The suction duct (3) is positioned on the front side of the nozzle and has a support roller (5) in it acting as a support. The roller (5) extends the entire length of the duct (3). Between the roller (5) and the sides (7, 8) of the duct (3) is at least one slit (9, 10) which is open towards the base of the nozzle. The roller (5) moves in the direction in which the nozzle is operating.
Patent DE-2836487-A1 (DE)
Title: Lock with movement actuated by insertion of coin - has coin-collecting container in base with central reject compartment and front cover plate with retaining lug
IPC: G07F17/14
Filed: 1978-08-21
Abstract: The coin-operated lock is built into a flat housing (1) into the side of which fits a barrel for a key mechanism. The top of the lock has a cover, and the base portion has a coin holding container, which is under a plate fixed by attachment screws. Reject coins fall into a central partition (30) with a coin access opening in the centre (32). Premature entry of a coin into the reject slot is prevented by a deflecting pin (39) which directs an accepted coin (16) to a guide pin (37). In its passage through the lock mechanism, the coin trips a spring mechanism. The narrow side wall of the lock housing (1) has a hooked portion and the hooks attach to the core of the lock cylinder. The latter has an access hole in the front wall of the coil container, which also has a projecting lug at the top which has an integral connection with the coin reject opening. The lug engages from beneath with a flange on the housing wall.
Patent DE-2854834-A1 (DE)
Title: Single use bottle seal for pharmaceutical prods. - includes seal plug and two interlocking securing sleeves
Inventor: BODENMANN PETER
IPC: B65D51/00
Filed: 1978-12-19
Abstract: A glass bottle which contains medicaments etc., is sealed by a non-reusable seal assembly which includes a flanged plug and two sleeves made of resilient plastics. When the plug is placed in the bottle, the first sleeve is placed over the plug flange. The sleeve shroud is tapered so that its internal flange fits over the plug and bottle rim. When the second sleeve, which is cylindrical is pushed over the first one, the tapered shroud is radially compressed so that its internal flange interlocks with the undercut bottle rim.
Patent DE-2908367-A1 (DE)
Title: Engine exhaust pipe connection - has spigot in cup end with captive seal ring pressed from mineral filler in metal wire mesh
Inventor: HOLZHAUSEN WIELAND DIPL ING DR
IPC: F16L37/52
Filed: 1979-03-03
Abstract: The sealed and resilient connection is esp. for a motor vehicle exhaust pipe. The pipe ends are resiliently (9, 10) connected via flanges (7;4, 8), of which one (7) has a spigot (2) received in a spherical cup-shaped recess (3) of the other (4, 8). A captive seal ring (6) is contained between the spigot and the cup. It consists of a filter e. g. of mineral fibres contained within a metal wire mesh material of which part of the wires is in a temperature, wear and corrosion-resistant steel whilst the remainder is in a corrosion-resistant low-friction metal. The ring is formed by pressing.