baber/WOPTO huggingface dataset:
Patent DE-2201206-A1 (DE)
Title: Removal of 1,3-cyclopentadiene from isoprene and/or - cyclopentene - by contacting with ion exchange resins
Inventor: KOEHLER HANS-DIETER DR
IPC: C07C7/12
Filed: 1972-01-12
Abstract: Very small quantities (2000 ppm) of 1,3 cyclopentadiene are removed fro isoprene and/or cyclopentene by contacting with a basic macroporous ion exchange resin in the OH-form. Pref. the ion exchanger comprises an ammonium gp. contg. anion exchange material on a styrene/divinyl-benzene copolymer base. The process is simple and gives reduced olefin losses and the ion exchange resin is easily regenerated.
Patent DE-2216983-A1 (DE)
Title: Welding belt - with weld dies to laterally heat seal endless doubled plastic tubes forming bags
Inventor: ALKEMPER HEINRICH
IPC: B65B51/30
Filed: 1972-04-08
Abstract: The endless doubled tube is longitudinally heat sealed along the butt joint, filled with a fluid and sepd. into individual bags by cross seams formed with the aid of a welding belt and weld dies in which the weld belt is equipped with a longitudinal bead and a lateral bead facing towards the weld die and corresp. grooves are formed in the die face. Pref. a clamp runs over the lateral bead of the belt with its end affixed to the die.
Patent DE-2256421-A1 (DE)
Title: Permanently coiled electrical flex - using an elastic insulating sheath with a defined modulus of elasticity
Inventor: FISCHER ERICH
IPC: H01B7/06
Filed: 1972-11-17
Abstract: Helically coiled one- or multistrand electrical flex, esp. for telephone receivers, with a flexible sheating suffering no significant deformation despite repeated stretching, comprises elastic material pref. an isotactic polybut-9-ene and has a modulus of elasticity free from torsion of 2,200 kp.cm-2 and loses is not >25% of the modulus of creep when subjected to a torsional strain of 20 kp.cm-2 for 5 years.
Patent DE-2259617-A1 (DE)
Title: Garment button fastening system - with hollow shank for a stud to be screwed or riveted into place through the fabric
Inventor: PAZDERA KONRAD R
IPC: A44B1/30
Filed: 1972-12-06
Abstract: The button, of the required shape and colour, is located on the fabric with its hollow shank at the desired position for the button location. The pointed stud is passed into the shank from below, through the fabric, to be secured in a screw or riveting action. The purpose is to provide a button fastening which can be mounted without the labour of sewing, which can be removed for cleaning, and which can be replaced easily on damage.
Patent DE-2310910-A1 (DE)
Title: Distance pieces for semiconductor water diffusion - of same matl. contact wafers only along rim
Inventor: PLATZROEDER KARL DIPL-PHYS DR
IPC: C30B31/14
Filed: 1973-03-05
Abstract: A diffusion device for semiconductor wafer is arranged in a heated tube together with a dopant source. The device is assembled from distance pieces between the semiconductor wafers which contact the wafer only in a fringe zone. The distance pieces can be rings or discs with projections along their rim, either continuous or interrupted, and are made of the same material as the semiconductor wafers. Higher packing density of the diffusion tube is achieved, with gentle surface treatment.
Patent DE-2332350-A1 (DE)
Title: Automatic asparagus peeling machine - with pairs of facing rotary cutters preceded by roller linkage guides
IPC: A23N7/04
Filed: 1973-06-26
Abstract: An asparagus peeling machine for use by large hotels and canned food mfrs., employs pairs of rotating cutters which face eath other with enough distance to allow the whole asparagus to move past them, guided in a vertical direction. The depth of penetration of each cutter is controlled by rollers which stand out 5 mm relative to the cutting edge. The depth of penetration of the cutters can be regulated automatically to suit the varying degree of stringiness of the skin.
Patent DE-2332639-A1 (DE)
Title: Rotating cutter for removing gearwheel burrs - is an automatic flexibly mounted filing disc held on a rotating shaft
Inventor: RAUSCH HERBERT
IPC: B23F23/12
Filed: 1973-06-27
Abstract: The filing machine removes burns from the end faces of the gear wheel piece. The filing discs are stacked on their driving shaft. The filing discs are spaced out on the shaft vertically, by clamping rings. Between the clamping rings and the filing disc is fixed a heavy rubber ring of square cross section. A number of gears are stacked on a vertical clamping shaft. The rotating filing shaft is swung into the region of the gears. The filing tools come into contact with the underside and top faces of the flat gear wheel edges. The rubber rings compensate for any stacking tolerances in the mounting of gear wheels or or of the filing tools.
Patent DE-2333610-A1 (DE)
Title: Tennis racquet with U-shaped metal frame - has openings in frame profile bottom and circumferential groove supporting hollow rivets in openings
Inventor: KROEGER PETER
IPC: A63B49/022
Filed: 1973-07-02
Abstract: The tennis racquet frame is made from a metal strip with a U-shaped profile, whose parallel end sections form the frame grip. The U-profile bottom is provided with holes receiving and guiding the racquet strings. The bottom of the U-profile has a groove running round the frame inner side, whose flanged edges support hollow rivets, inserted into the string holes. The groove may be covered by a strip of spring steel, having bores aligned with the frame holes. The hollow rivets are then inserted into the frame holes via these bores.
Patent DE-2335025-A1 (DE)
Title: Soln for producing oxide film for doping semiconductors - in solid state contains reaction product of tetraethyl ortho silicate and acetic acid/anhydride, for reproduced-ucibility
Inventor: FISH JOHN GAYLORD
IPC: C30B31/02
Filed: 1973-07-10
Abstract: A mixt. of substances, present in a soln. (I) contg. a dopant (II), which can be diffused into a semiconductor in the solid state, also contains a reaction prod. (III) of Et4SiO4 plus AcOH or Ac2O. This oxide-forming compsn. has satisfactory purity and keeping qualities and can be reproduced on the industrial scale to accurate specifications. The pref. components are: (I) EtOH; (II) a cpd. of B, P, As or Au (for a Si semiconductor) or Zn (for a GaAs semiconductor); (III) (EtO)2Si(OAc)2. Solid state diffusion is achieved by surrounding the semiconductor with the dopant source and heating to the diffusion temp.
Patent DE-2342120-A1 (DE)
Title: Vehicle anti-theft device - comprising coded switch group which must be operated within limited period
Inventor: SCHROEDER WOLFGANG DIPL-ING
IPC: B60R25/10
Filed: 1973-08-21
Abstract: The cooled switch group is formed by several individually operated contacts connected in series which in decoded operating position switch a switch off signal via a capacitor from the control input of a bistable electronic switch which controls an alarm cct. directly or indirectly. The switch on signal is supplied to the control input via a capacitor connected to at least one of the series contacts or the switch on signal is supplied via one or several parallel switch contacts, with their switch positions representing the code. Pref. a resistor is connected in parallel with the latter capacitor and a diode, is connected in series with the parallel combination.
Patent DE-2348324-A1 (DE)
Title: Mesa transistor manufacture - saves passivation by etched ditch and oxidation treatment for diffusion and oxide coating
Inventor: KARGEL HANS-JUERGEN
IPC: H01L21/762
Filed: 1973-09-26
Abstract: A mesa transistor is produced by etching into a n+-type substrate with a p-type epilayer, covered by a p+-film, a ditch beyond the pn-junction which encloses a certain area. Treatment in an oxidising atmosphere causes impurities to diffuse from the p+ - zone into the p-zone and the ditch surface to become covered by an oxide layer. An emitter zone is finally diffused through a window of the oxide layer through the p+- into the p-type zone. This saves a special passivation operation in a glow discharge or by pyrolytic oxidation or by vapour deposition of vitreous layers.
Patent DE-2355852-A1 (DE)
Title: Colour modulator - contg polariser, analyser, bi-substd rare earth-iron garnet magnetic field generator and doubly refracting crystal
Inventor: TAKEUCHI HIROSHI
IPC: G02F1/09
Filed: 1973-11-08
Abstract: Colour modulator, making use esp. of the Faraday effect of a transparent ferromagnet, contains (a) a polariser and an analyser, main axes of which are parallel to one another, (b) a bi-substd rare earth-Fe garnet, between polariser and analyser, having the formula R3-xBixFe5-yAy O12 (where 0.2 x =2 and 0= y 5; R is at least one element such as Y or rare earths while A is at least one element which can replace Fe) and (c) a device associated with bi-substd, rare earth-Fe garnet for generating a magnetic field of variable intensity in direction of light passing through the bi-substd rare earth-Fe garnet. A doubly refracting crystal may be placed between garnet and analyser.
Patent DE-2364680-A1 (DE)
Title: Device for manipulating an end of yarn - by clamping, imparting a mechanical impulse, shearing or altering its run by tension or pressure
Inventor: DUYNHOVEN ADRIANUS HENRICUS VA
IPC: D03D47/00
Filed: 1973-12-27
Abstract: A device for the high speed manipulation of an end of yarn, e.g. in weaving, uses the phenomenon that an electrical impulse in a flat spirally wound coil, induces in a thin metal disc positioned close to it, a relatively powerful accelerative force of short duration away from it. The thin metal dics is embodied in a component of a clamp, shear, etc. to be moved at high speed from the inactive to the active position by the "magnetic pressure", and according to requirements it may be held in the active position by an electromagnet energised simultaneously.
Patent DE-2402015-A1 (DE)
Title: Voltage transformer winding - has main winding with at least one tap for adjusting facility
Inventor: DILER HIMMET DIPL ING
IPC: H01F27/42
Filed: 1974-01-14
Abstract: Voltage transformer comprises a winding to be varied or adjusted in respect of a parameter, this winding to be coupled of the main winding and an additional winding to be coupled to the main winding, or connected in opposition to the main winding. The parameter considered is either the number of turns or the inductance of the winding. The main winding has at least one tap at one of its ends and the parameter change in transfer from this end of the winding to the tap adjacent to it is, at least, approx, equal to twice the change in the parameter in connecting the whole additional winding to the main winding, or or connecting the whole additional winding in opposition to the main winding.
Patent DE-2403142-A1 (DE)
Title: Transferring solids between miscible liquids - by counter current flow avoiding solid-liquid back mixing or liquid channelling
Inventor: PORTER HAROLD FELTON
IPC: B01D12/00
Filed: 1974-01-23
Abstract: Solids are transferred from one liquid to another, miscible liquid by passing them counter currently through a vertical column provided with axially spaced, transverse perforated plates, each provided with rotatable blades on their liquid-solids inlet side. A portion of the second liquid is discharged at the same end of the column at which it is introduced but takes with it the solids that have been impelled through the plates by the blades. The remaining portion of the second liquid displaces the first liquid which is discharged from the same end of the column at which it is introduced.
Patent DE-2408608-A1 (DE)
Title: Titanium nitride layer prodn. - by vapour-plating substrate in vacuo in two phases with prevention of titanium pptn.
Inventor: HIEBER KONRAD DR RER NAT
IPC: C23C14/56
Filed: 1974-02-22
Abstract: Opt. structured TiN layers are produced by vaporising Ti in vacuo with addn. of N2 and depositing on a substrate as a TiN layer. The vacuum having residual gas pressure 10-2 -10-3. Vaporisation takes place in a 1st and a subsequently following 2nd vapour-plating phase. In 1st vapour-plating phase, the substrate is protected against pptn. of Ti by a screen and Ti is vapourised until a residual gas pressure 10-3 (10-4) Torr is set up through getter activity of Ti. In 2nd vapour-plating phase, a N2 partial pressure of 10-2-5 x 10-4 (10-2 to 10-3) Torr is set up by supplying N2, and the screen is removed. The process is used for thin film technology, esp. for microelectronics. Thus getter activity of Ti is used to improve initial vacuum in vacuum-chamber. Vapour -plating cycle is shortened. Heating of substrate is not necessary and low temp. coefft. can be achieved.
Patent DE-2417426-A1 (DE)
Title: Water flushed transportable toilet system - has pivoted basin actuated by cover for disposal and rinsing
Inventor: MCDONALD BRIDGET
IPC: E03D7/00
Filed: 1974-04-10
Abstract: The transportable toilet has basin, cleaning arrangement and a waste collection tank. The toilet basin is rotated about its pivot by a sprocket and chain mechanism which is actuated by the rotation of the basin cover. This basin is pivoted into use position when the cover is opened. When the cover is closed the basin is tilted into disposal and rinsing position. The basin edges are sealed against the frame and no smells can escape. The waste is tipped into collection tank and the basin is rinsed and disinfected in its tilted position. A protection paper is held in the front of the toilet basin frame and paper is drawn from this roll to cover the seat front part.
Patent DE-2435232-A1 (DE)
Title: Folded bag packing machine - has two stacker units delivering alternately to packing station
Inventor: BOSSE FRANK
IPC: B65B35/50
Filed: 1974-07-22
Abstract: The bags, folded lengthwise or crosswise, are continuously delivered from a folding station and to two or more stacking stations (29, 30) working in conjunction with a packing station (31) enclosing them in bags. A conveyor system (9-12) can be provided, alternately loading the shafts (13, 14) in the two stations. Each shaft has a base and a pressure plate (19, 20) lowered towards it. Stacks are alternately discharged from the shafts to the packing station, where a support holds the enclosing bag open (34-37) in line with openings in the shafts. A thruster (32) delivers the stack, clamped between base and pressure plate, into the bag (33).
Patent DE-2435722-A1 (DE)
Title: Connector block for flame-cutting machine - permits rotation of burner without twisting the cables carrying gases and coolant
Inventor: PAAPE JUERGEN
IPC: F23D14/46
Filed: 1974-07-25
Abstract: Device is for feeding cooling fluids and gases to a flame-cutting device and includes a rotary piston in a housing, the piston contg. channels which align with ring-grooves in the housing. The housing consists of a row of axial sections provided with connectors for the various media, de-aeration slots and seals on both sides of the ring-grooves. The axial sections are pref. mounted vertically on a base located on the frame of the flame-cutting device with axial and radial play and the de-aeration slots are pref. radial with an increasing cross-section towards the outside of the housing. The piston is pref. located in ball-bearings. The burner is free to rotate without twisting the cables carrying the various media.
Patent DE-2445725-A1 (DE)
Title: Welded pipe with longitudinal seam - made from two strips welded to obtain one wide strip prior to forming and pipe-welding
Inventor: GERTH DIETER DR ING
IPC: B23K9/025
Filed: 1974-09-25
Abstract: In a process for mfg. welded tubes with a longitudinal welded seam, a longitudinally-fed metal strip is formed into a slit tube and the adjacent edges joined by electric are welding in inert gas. The strip consists of >=2 parallel strips which are fed to a welding unit where arc welding in inert gas is used to make one wide strip. The edges of the strips being welded together pref. overlap as they are fed through an edge trimming machine prior to welding and the weld is pref. subjected to plastic deformation by rolling. Used e.g. in mfg. corrugated pipes for use in remote heating installations. Strip widths >1.5 m are not normally obtainable; the invention produces one wide strip by welding two strips side by side.
Patent DE-2446450-A1 (DE)
Title: Wall bracket for panel radiator - has upper radiator support clip adjustable in height for different size radiators
IPC: F24D19/02
Filed: 1974-09-28
Abstract: The complete bracket (10) consists of a U-shaped bar (12) fixed to the wall (15) by a screw or bolt (13) with the open top of the U against the wall. A clip fixed at the bottom of the bar terminates in a hook (57) which supports the bottom lip (26) of the radiator. At the top of the bracket another clip terminates in an inverted hook which slips over the upper lip (20) of the radiator. This clip is attached to an intermediate piece (22) which can slide up and down within the hollow of the U bar (12) and is secured in the required position by a screw (26) through a screwed boss (24) on the side of the vertical bar.
Patent DE-2447372-A1 (DE)
Title: Composite, anti-corrosion, coating for exhausts - comprises various silicone rubbers having different hardening characteristics
Inventor: SCHERMER HEINZ
IPC: B05D7/14
Filed: 1974-10-04
Abstract: An anti-corrosive, protective, coating for motor vehicle exhausts comprises (a) for those portions of the exhausts subjected to rel. moderate thermal stresses, a silicone rubber coating of the type that hardens under the action of atmospheric humidity, (amine- or acid-hardening), or a type the hardens by addn. of a cross-linking agent (e.g. "Silopren K 1" (RTM) by Bayer); (b) for parts subjected to rel. high thermal stresses, a silicone rubber without addn. of a hardener, since a tough silicone rubber layer may be expected to form by exposure to the heat of the motor exhaust gases; (c) for thermally highly stresses portions a silicone rubber to which benzoyl peroxide or some other hardener for hot-curing has been added. The coatings give considerably prolonged service life, compared with prior art methods, esp. the rel. cooler parts of the exhaust which are subjected to greatest wear and tear.
Patent DE-2449479-A1 (DE)
Title: Gut strings for tennis or badminton - strings flattened at their cross-over points
IPC: A63B51/02
Filed: 1974-10-19
Abstract: Gut strings for tennis or badminton rackets are fitted with the strings flattened at least on the cross-over points where the sides of the strings face each other. The gut strings may have an oval or a rectangular cross section and are deformed by a plastic or with a metallic material of the foil type. The wear characteristics of gut stringing as opposed to strings made from plastic material, is of better quality and provide more resilience.
Patent DE-2452117-A1 (DE)
Title: Drop regulator for infusions and transfusion - with sealing rings and self locking winding preventing set valve slipping
Inventor: ENGEL LOTHAR
IPC: A61M5/14
Filed: 1974-11-02
Abstract: The drop chamber and flow regulator are combined as a single unit and the flow volume controlled by sliding two truncated cones together. The self locking winding and compression ring (5) prevent accidental alteration of the set volume whilst an adjusting ring (6) and graduations on the outside of the drop chamber permit visual setting of the volume required. The drop count is thus precise and very fast and can be continuously adjusted as well as being visually regulated. Drop counting is not necessary and the volume will not be altered by travelling or shaking etc. A filter (9) prevents any contamination passing through.
Patent DE-2457722-A1 (DE)
Title: Patenting hot rolled steel wire leaving a rolling mill - where magnets are then used to hold heavy coils on transport trolley
Inventor: SCHAEFER WALTER
IPC: C21D9/573
Filed: 1974-12-06
Abstract: Parent parent described the treatment of a metal prod.fed into a medium in an upright vessel contg. a movable support onto which the product is laid and, after a prescribed time, the support is used to remove the product from the vessel onto a conveyor with automatic transfer to a trolley employed for further transport of the product. In this addn. the novelty is that in the transfer and/or transport of ferromagnetic prods., the latter are held in a desired,stable located by the air of magnetic forces. The pref. plant uses two vessels alternately, both contg.molten salts and holding magnet(s) on the trolley. Used e.g. for the patenting of hot-rolled steel wire, min. 0.3% C, leaving the last stand of a rolling mill at 30-60 m/second and fed alternately into two salt baths at 450-600 degrees C., after initial cooling to about 800 degrees C., to form patented coils of wire of wt. 1400 kg which are then automatically transferred to a trolley. The magnets ensure that the heavy coil of wire is retained in the desired position on the trolley.
Patent DE-2460976-A1 (DE)
Title: Data transmission over automatic telephone system - has two modems each with time element started simultaneously with MODEM switching
Inventor: BADER EDGAR DIPL ING
IPC: H04M11/06
Filed: 1974-12-21
Abstract: The transmission is intended for a manned calling station and a manned or unmanned called station. When the called station subscriber line is switched over from its telephone instrument to the corresponding modem, it automatically sends a reply tone which switches over to the respective modem the line at the calling station. At this signal end signalling wires "readiness for operation" of both stations are switched to "ON" state. A timer is provided in each modem, started when the line is switched over. At the end of the delay time, and in case of distorted reply tone at the calling station, the modem is made ready for operation, or the line is switched over from the modem to the telephone instrument.
Patent DE-2501220-A1 (DE)
Title: 1,7-Diphenyl-5-hydroxy-1,4,6,-heptatriene-3-ones prepn. - in one step from beta-diketones and aromatic aldehydes
Inventor: LIEBENOW WALTER DIPL CHEM DR
IPC: C07C49/248
Filed: 1975-01-14
Abstract: of formula (I) (where R1 is OH, lower alkoxy or di(lower alkyl) amino; R2 and R3 are H or lower alkoxy; and R4, R5 and R6 are H or alkyl, or R4 + R5 is (CH2)x in which x is 2, 3 or 4, and R5 can also be lower alkoxycarbonyl), e.g. 1,7-bis(p-hydroxyphenyl)-5-hydroxy-1,4,6-heptatriene-3-one, are prepd. by reacting a 1,2-glycol or a hydroxy-acid a beta-diketone of formula R4CH2-CO-CHR5-CO-CH2R6, and boron oxide or aluminium hydroxide in a solvent and/or azeotroping agent under the conditions of an azeotropic distn. to give a spiro cpd.; reacting the spiro cpd. with an aldehyde of formula (III) in the presence of a catalyst with azeotropic removal of water of reaction so as to form a complex which separates out from the reaction mixt.; sepg. off the complex and decomposing this with water or dilute acid to give (I); and recovering (I) in a conventional manner. The solvent or azeotroping agent used must be one in which the initially formed spiro cpd. is soluble but the subsequently formed complex is insoluble. The prods. are useful as food dyes and as pharmaceuticals, e.g. as cholo kinetic anti-inflammatory, spasmolytic and antibacterial agents. One-pot process is suitable for use on a technical scale which gives (I) in high purity and good yield.
Patent DE-2503678-A1 (DE)
Title: Wall calendar with doubled-over suspension strip - has prepared hole protected by plastic foil
Inventor: SCHORPP GERHARD DR ING
IPC: B42D5/04
Filed: 1975-01-30
Abstract: Wall calendar has suspension strip in front of the block and a suspension hole. The suspension strip is folded together upwards and glued. This doubled oveer suspension strip when folded upwards during use shows an imprint. A strip (8) projecting on both sides far beyond the hole, and made from a thin, tough flexible plastic foil, is rigidly glued in between the folding bend in the form of the groove (5) to double the suspension strip (3) and one of the prepared holes (7). The foil strip projects beyond the hole (7) on both sides by at least the diameter of three holes. The foil strip (8) has the form of a sticky label and is fitted with an impact adhesive.