baber/WOPTO huggingface dataset:
Patent DE-2317021-A1 (DE)
Title: Decomposition of cellulose-contg materials - with lyes contg sodium hydroxide and sulphide and in addition an alkali polysul
Inventor: KRETZSCHMAR GERHARD DR
IPC: D21C3/02
Filed: 1973-04-05
Abstract: Process comprising the stages of pre-steaming, impregnation of wood with an alkaline lye and main delignification in the vapour phase is improved in that the NaOH- and Na2S-contng. lye additionally contains an alkali polysulphide, whereby the dissolution of lignin is intensified and hemicellulose is protected against alkaline attack. As a result, yields are increased without impairing the quality of the product; the consumption of chemicals and energy is reduced. The method is esp. suitable for the prodn. of paper pulp from wood and annual plants.
Patent DE-2337250-A1 (DE)
Title: Polishing machine with belt mounted on oscillating wheel - uses magnet on spindle mount to impart the oscillation
Inventor: JUNGHANNS PAUL
IPC: B24B21/18
Filed: 1973-07-21
Abstract: Arrangement consists of a spindle mount from which a rotating axially fixed spindle protrudes. A hub is mounted on this spindle which has six longitudinal grooves of semi-circular section. A sleeve mounted over the hub has six internal grooves in line with those on the hub. Balls are mounted between sleeve and hub in three of the grooves, while spiral springs are mounted in the three remaining grooves. Balls and springs which alternate are restrained so that the outer sleeve has a small amount of axial movement. A wheel clamping plate is mounted on the sleeve at the side nearest the spindle mount. An anchor ring is attached to this clamping plate which consists of sections of magnetic and non-magnetic material.
Patent DE-2357864-A1 (DE)
Title: Anti-diabetic agents prepn. - from biguanidine (salt) and nicotinic acid (salt)
Inventor: HURKA WILHELM DR
IPC: C07D213/80
Filed: 1973-11-20
Abstract: A biguanide of formula (I) (where R1 = phenethyl, butyl or Me; and R2 = Me or when R1 = phenethyl or butyl, R2 = H) is treated with the equiv. amt. of nicotinic acid, or a salt of (I) is treated with an equiv. amt. of a salt of nicotinic acid, in aqs. or alcoholic soln. The prod. is used with conventional adjuvants, carriers, diluents in pharmaceutical prepns.
Patent DE-2360990-A1 (DE)
Title: Capacitor web with thin metal plating - has metal-free resistance rim at one edge separated by non-conductive strip from metal
Inventor: EPPLE RICHARD DIPL PHYS DR
IPC: H01G4/005
Filed: 1973-12-07
Abstract: The capacitor web is provided with a regeneratable thin metal foil forming the capacitor electrodes and one web edge is provided with a rim without the metallising foil, while the metal foil edge has a rim strip for reduction of breakdown danger in this region. The low ohmic strip is separated from the metal foil by a non-conductive strip which is less than 10 microns. The edge region of the web with the different rim strips may be coated with an insulating film and the rim strip might be deposited there in overlapping relationship to the metal foil. The insulating film is preferably vapour deposited in vacuum, but may be applied by a suitable printing process.
Patent DE-2361577-A1 (DE)
Title: Wooden fence of posts and plaited strips - with notching strips' middle to fit strips above or below
Inventor: MACKELDEN BRYAN EDMUND
IPC: E01F8/00
Filed: 1973-12-11
Abstract: The purpose is to improve both visual and acoustic screening effects, and to make the fence more stable. The notched bend out of line in the middle of the length of strips between every two posts, into which a strip passing above or below can fit, makes for closer contact between strips and thus enhances stability, also making it impossible for a bystander to look through, even from close at hand, while sound loses impetus being twice reflected. The notching out of line may be on one side only, and pointing downwards, and may be wide enough for strips inserted in it to fit close against the sides after stretching onto the posts. Prefabricated elements may be used in fence assembly.
Patent DE-2363660-A1 (DE)
Title: Turbine blade groove cutting tool - has double point provided by second insert tool screw adjustable in body
Inventor: SIEPMANN HANS
IPC: B23B27/06
Filed: 1973-12-20
Abstract: The tool holder is of rectangular cross section with an end portion of reduced width and thickness. The end carries the support for the cutting insert. The underpart of the holder is provided with a longitudinal rectangular slot in which the member slides and carries a support for another cutting insert. The distance between the points on the two inserts can be accurately adjusted by a screw and clamped in place by screws. The depth of the point relative to the other fixed point can be adjusted to screws. The tool ensures the high degree of accuracy necessary for the grooves retaining turbine blades in their discs.
Patent DE-2407122-A1 (DE)
Title: Square-timber or steel section connecting element - comprising two stem-connected U-sectioned claws with aligned coupling slits and wedges
Inventor: HENRICHS TILO
IPC: E04G7/24
Filed: 1974-02-15
Abstract: The connecting element is widely applicable, its uses including the edge interconnection of square timbers or rectangular-sectioned steel profiles supporting the form membrane in concrete wall construction, or forming part of a scaffolding. It comprises two claws, of U-shaped cross-section, the U base stems of these being interconnected; the two arms of each are at an interval equal to the width of the timbers or steel sections, and they have coupling slits aligned with each other, at an interval from the base stem matching the depth of the timbers or sections; a wedge is fitted for knocking into position. This is simple, indexpensive and universally applicable.
Patent DE-2407974-A1 (DE)
Title: Loudspeaker transmitted vibrato - is obtained by repeated transmission lead branching and reuniting
Inventor: STEIMEL KARL-HEINZ
IPC: G10H1/043
Filed: 1974-02-14
Abstract: Rotating vibrato transmitted via a loudspeaker is obtained by repeated branching and re-uniting the lead transmitting the sound signal from the point of sound formation to the swell pedal. In each branch are located a photoresistor and a condenser. The condensers have different values so that the notes of the organ sound lighter or darker when using photoelectric control as described in the main patent. The volume of the vibrato can be controlled by a potentiometer, the highest setting yielding the sound of a plucked instrument.
Patent DE-2409886-A1 (DE)
Title: Carbon dioxide - bicarbonate assay in blood etc. - by enzymatic reaction with phosphoenol pyruvate to give oxalacetate
Inventor: BEVILL RARDON DIXON
IPC: C12Q1/48
Filed: 1974-03-01
Abstract: Method for assaying CO2 and HCO3- in biological fluids, esp. whole blood, plasma or serum, comprises adding phosphoenalpyruvate (I) and an enzyme catalyst (II) (phosphoenolpyruvate carboxylase (pref.) or phosphoenolpyruvate carboxybinase) so that (I) and HCO3- react to form oxalacetate (III) which is then determined. Only a small sample (e.g. 5 mu l) is required; the reaction can be carried out in an open system and deproteinisation of the sample is not necessary.
Patent DE-2412656-A1 (DE)
Title: 2-Substd.-5-nitro-imidazole derivs - used as antimicrobials esp. against Trichomonas vaginalis
Inventor: RUFER CLEMENS DR
IPC: C07D233/95
Filed: 1974-03-14
Abstract: Nitroimidazoles of formula (I) are new: (where X is 1-4C alkyl; R is 3-d-(1-4c alkyl)aminoacryloyl or a 3(5)-pyrazolyl gp. opt. 1-substd. by 1-4C alkyl or phenyl). (I) are antimicrobials esp. active against protozoa, partic. Trichomonas vaginalis; e.g. 1-methyl-5-(1-methyl-5-nitro-imidazol-2-yl)-pyrazole has MIC (gamma/ml) of 0.05 as T. vaginalis (cf 1.6 for metronidazole). They may be used orally, locally or parenterally.
Patent DE-2424985-A1 (DE)
Title: Detector for liquid chromatography - having transport mechanism for the eluate an evaporator and a flame ionisation detector
Inventor: FISCHER DIETER DIPL PHYS DR
IPC: G01N30/84
Filed: 1974-05-22
Abstract: The evaporator separates the solvent. The detector includes a pyrolysis oven, a mass spectrometer, a plasma detector and the like. The transport mechanism is in the form of a rigid ring with a coating of a porous ceramic material for the eluate, which emerges through tubes (4), at right angles to the top surface of the oven. The pyrolysis oven centre is fed by carrier gas (9) (H2, HeAr, etc.) and by nitrogen (10). The oven walls are in the form of a pair of rectangular cross section annuli with a central rectangular aperture for the eluate duct and transport ring.
Patent DE-2426313-A1 (DE)
Title: Teletransmission of electricity meter readings - meters distributed over an area, but read centrally
Inventor: LITINAS GEORG DIPL ING
IPC: H04Q9/00
Filed: 1974-05-29
Abstract: A remote meter reading system for domestic consumers, particularly for multi-storey buildings may have the meters connected to a central reading point in the same or in a different building. The reading results are continuously transmitted over signal lines, or discretely called out, and processed by computers. Teletransmission of readings is done by an electromechanical, electrodynamic or photo-electric device.
Patent DE-2427526-A1 (DE)
Title: Ozone metering control for water treatment - by probe with opto-electronic amplification keeping redox potential constant
Inventor: NONNENMACHER KLAUS ING GRAD
IPC: G05D21/02
Filed: 1974-06-07
Abstract: In a treatment for water, ozone gas is added in metered proportions which can be consumed by the water chemically and bacteriologically by using the redox potential as the controlled condition of an automatic control system. This redox potential forms by additional energy a voltage for the generation of an ozone quantity which is required at that moment by the redox medium of the water to keep the potential constant. This eliminates complex mechanical systems for keeping the redox potential constant; these are also too slow in response to ensure a stable control. The water treatment plant is readily switched ON and OFF when water is to be produced with a set redox potential.
Patent DE-2428276-A1 (DE)
Title: Sheet steel chest with roll-top door - has angled inside guide rails with leaf spring preventing rapid closure
Inventor: SCHLAEGER ALFRED
IPC: E06B9/11
Filed: 1974-06-12
Abstract: The sheet steel metal box or chest has a roll-top door preferably of plastics strips or bars which are linked together along their longitudinal edges. this door is guided in lateral guide rails fixed inside the chest so that when the door is rolled up it extends back beneath the top wall. The depth of the top wall can equal the length of the door, but if not the door rolls back down the inside of the back wall. The guide rails are one-piece angled sections with a guide arm and a fastening arm attached to the insides of the side walls and top of the chest. The fastening arm stops in the area where the rail passes from the upright to the horizontal line whilst in the upright lower part the guide arm has a gate containing a leaf spring which restricts the groove between the housing wall and the guide rail to act as a safety brake which prevents the door closing too fast.
Patent DE-2429844-A1 (DE)
Title: Oil free low pressure ratio compressor - has conical rotor meshing with slotted disc at angle to rotor
Inventor: BREYER EBERHARD
IPC: F04C18/54
Filed: 1974-06-21
Abstract: A conical rotor with a hemispherical hub carries radial blades which engage in slots in a disc which is mounted at an angle to the axis of the rotor. The rotor is driven by an electric motor and the disc is driven from the rotor through a flexible membrane type universal coupling. Behind each slot in the disc is a recess larger than the path of motion of the blade. The spaces are sealed on the outside by a projecting cover attached to the disc and on the inside by the hemispherical hub of the rotor. The blades are shaped so that there is a constant gap between a blade surface and one side of the slot in the disc.
Patent DE-2431732-A1 (DE)
Title: Circular knitter dial plate system - has two sinkers with hook and longer projection for loop dial to cylinder transfer
Inventor: KEJNOVSKY BOHUMIL
IPC: D04B15/18
Filed: 1974-07-02
Abstract: The construction of a dial plate for the dial to cylinder transfer system, for a circular knitter for the prodn. of hosiery, has two transfer sinkers the projection of the second sinker being of sufficient length to trap one leg of the yarn loop while lying under the throat of the hook of the first sinker. The design ensures a clean transfer of the yarn loops, without snagging, esp. when executing the welts or the foot closing of the stocking.
Patent DE-2432117-A1 (DE)
Title: Paper clamp device - used as attachment for desk writing support holding correspondence in position
Inventor: JACOBI HERBERT
IPC: B43L3/00
Filed: 1974-07-04
Abstract: Clamping device as an aid for a writing support on a desk in order to hold correspondence in position simply and quickly. The clamping device has a base which is simply pushed below the writing support and is suitable for any known type of writing support. The clamping device presses the item of correspondence directly against the writing support. The clamping device can be adorned to taste by the insertion of an annular calendar or picture cut outs in to the clamping ledge and it can also be used as a note pack holder attached to the wall by through holes drilled into the base.
Patent DE-2433241-A1 (DE)
Title: Road vehicle counting device - uses source coil in centre of road and receiver coil at either side of road
Inventor: REUTING HANS-WERNER DIPL ING
IPC: G08G1/042
Filed: 1974-07-11
Abstract: The source transmit coil (6) is located at the centre of the road, so as to be responsive to the passage of a motor vehicle in either direction, and providing an alternating magnetic field. At either side of the road is mounted a recording unit (13, 14) including a receiver coil (11, 12) located in the latter alternating magnetic field, so that the transmit source (6) and the receiver coils (11, 12) are magnetically decoupled until the passage of a vehicle. Preferably the axis of the transmit source coil (6) is perpendicular to the road surface, with the coil winding concentric to a soft magnetic core. The transmit source coil (6) and/or the receiver coils (11, 12) are embedded in the road surface, above the road reinforcement mesh (4).
Patent DE-2434832-A1 (DE)
Title: Cable fastener for mine wagons - has semicircular guide for ensuring unwinding movements for cable end
Inventor: WEBER FRANZ
IPC: B61B12/12
Filed: 1974-07-19
Abstract: The cable is held so that undesirable wear due to adhering mineral is reduced, and can also work in conjunction with the switching points necessary in the system. The cable carries out only rolling and u nwinding movements on the rope guide roller. The end of the cable is formed into a loop (7) which is clamped between two parallel jaws in a clamping element (5). This clamping element is fastened so that it can pivot on the vehicle frame (4). The rope end emerging from the clamp is guided around a semicircular guide (12) and this guides the rope in the opposite directions without wear. The jaws of the clamping element are parallel to the vehicle frame.
Patent DE-2440702-A1 (DE)
Title: Curtain with built-in pleat-forming cord - has extra loops for hook runners providing gapless connection of curtain to track
Inventor: SCHOELER ALFRED
IPC: A47H13/16
Filed: 1974-08-24
Abstract: The curtain is provided with a pleated heading by means of a cord (7) worked in at evenly spaced set intervals to run continuously along the top edge of the curtain (6) passing from one side to the other so as to float for a pre-set length between the passage openings (6a, 6b). Loops (8, 8a, 8b) are provided on the back of the curtain above and/or below the passage openings (6a, 6b) so that the curtain hook and runner element (9) can link up the curtain and curtain rail. The cord can be provided with intermittent slots or be encased in a textile sleeve so that the curtain hook can also engage the cord to provide a neat and easy connection between the pleated heading and the rail with no unsightly gap. The pleated folds are secured in position on inserting the hook once the cord has been drawn up as tight as required.
Patent DE-2441522-A1 (DE)
Title: Large rolling door catch mechanism - as roller-connected round-notched rachet wheel in close fitting casing
Inventor: HAAKE WERNER
IPC: E06B9/84
Filed: 1974-08-30
Abstract: The purpose of the catch mechanism is to prevent the rolling door, which may be large and heavy even if made of light metal, from crashing down in the event of failure of the carrier media, but without impeding normal movements of the door in any way. It comprises a ratchet wheel (2), connected for turning with the winding shaft, with cam-shaped accommodating spaces (5) for locking-balls (6) on its periphery. The wheel is encompassed by a casing (1), fixed relative to the winding shaft, with interior only slightly greater than the wheel's periphery, and with a cutout (7) opening to the interior, the depth of this being less than the diameter of the balls, which are preferably made of a very tough material. This is simple, inexpensive and reliable.
Patent DE-2451759-A1 (DE)
Title: Screw collar flange for pipes - has annular disc with conical surface mating with band or beading on pipe
Inventor: SCHLICHT GUNTER
IPC: F16L23/028
Filed: 1974-10-31
Abstract: The flange is made from an annular disc with inner and outer edge bent back through 90 deg. and with holes for fixing screws. The flange fits on a band or beading on the end of a pipe and can be rotated so that the screws or bolts locate in the correct place. The end surface (5) of the inner edge (3) of the flange is chamfered and presses against a conical fillet along the back of the beading on the pipe end. A development of the design has a two-part ring fitting behind the beading on the pipe end with conical reverse surface. The advantage is that the force required to pull the flange to the facing surface is reduced, avoiding the risk of fracture and ensuring a good seal.
Patent DE-2457961-A1 (DE)
Title: Bottle handling installation - packing and unpacking bottles from cases using lifting arm
Inventor: HELZEL KURT
IPC: B65B21/18
Filed: 1974-12-07
Abstract: A machine for simultaneously inserting bottles into and removing bottles from cases, uses a bottle table divided into packing and unpacking sides. A bottle case conveyor installation forms part of the machine. A collar arm (3) is used as a traverse element guided on one side, to which both packing heads (4, 5) are attached on either side but diagonally offset from each other. Two parallel case conveyors (7, 15) below the movement path of the collar arm across its axis and next to each other are co-ordinated with the appropriate packing head. The double track bottle table (10a, 10b) is arranged with supply and removal conveyors at right angles and above the case conveyors.
Patent DE-2500388-A1 (DE)
Title: Tension relieving cable clamp - consists of a base plate on which the cable rests and a cover supported by a hinge band
Inventor: SIMON HANS
IPC: H02G3/06
Filed: 1975-01-07
Abstract: The cover of the cable clamp can be folded on the base plate and fastened to it by screws. In order to pass the cable (7) at a right angle through a hole in the base (10), a half-shell (2) is formed on the base plate (1) projecting into the hole. A second, corresponding half-shell (6) is formed on the cover (5), so that it also projects into the hole when the clamp is closed, thus insulating the cable passing through it. Two clamping screws are provided (8, 9) to lock the fixing lugs, and mate with screwed holes in the underlying clamp unit.
Patent DE-2503058-A1 (DE)
Title: Flap type pipe valve - has truncated cone section sealing collar which distorts under heat or load
Inventor: BELLSCHEIDT HEINZ ING GRAD
IPC: F16K1/226
Filed: 1975-01-25
Abstract: The pivoting or rotating flap and the housing in which it works have metal seals working together, one or both of which have conical sealing faces. One of the seal is in the form of a collar (5) of truncated-cone section, the inner or outer face (8) of which forms the sealing face (7). It distorts as it bears against the other seal (6) under the effect of heat or actuating forces. It can be welded to the inside of the pipe (1) or to the flap (2) as the case may be, in the former case being secured by means of an annular mounting foot (10). The collar can comprise a hard-wearing alloy while the mating seal can have a reinforcement built up on it by welding, the two being designed for line-contact with each other.
Patent DE-2503936-A1 (DE)
Title: Parachute load hanging hook - has hook bridged by elastic lines to release load upon landing
Inventor: SCHULZ PHILIPP
IPC: B64D17/38
Filed: 1975-01-31
Abstract: The hook is an elongated C-shape, with a closed eye (3) at its lower point and an open eye (5) at the upper. The parachute lines (10, 11) are secured (12) to the top. When stowed the load-rope eye (13) is passed over the lower part of the hook and bears on a ring-shaped elastic link (9) of such length as to be just taut when arranged across the gap in the 'C'. On deploying, when the hook takes the weight a lashing (15) holding the load-rope in place breaks, allowing the eye to engage securely. On landing, the weight comes off the hook again and the elastic releases the load.
Patent DE-2511030-A1 (DE)
Title: Illuminating system for large flat panels - has parallel retracting grooves with unequal spacing ensuring uniform illumination
Inventor: STRANICKY FEDOR
IPC: F21V8/00
Filed: 1975-03-13
Abstract: A drawing board carries a plate (4) made from a transparent material. The side edges (5 and 6) of this plate are bent backwards and support at both ends open, longitudinally slotted metal pipes (7, 8) held on the plate by clamps (9). Tubular discharge lamps (10) are fitted into these tubes. The light is directed into the edge of the plate and the light is propagated to the plate surfaces by total internal reflection. Fine grooves (15) are made into the plate parallel to the side edges. The distances between these grooves become narrower with the increasing distance from the light sources. The light is reflected from the cover plates whose inner face can be coated with reflecting material.
Patent DE-2512404-A1 (DE)
Title: Circulation system for oil filled transformer - has horizontal slots through sides carry corrugated sheets forming vertical circulation channels
Inventor: GOTTMANNS HANS-PETER
IPC: H01F27/02
Filed: 1975-03-21
Abstract: A liquid insulated transformer has load carrying sides (5, 6) which contain the liquid, and has a set of cooling channels (8-14) running vertically down these sides, made from corrugated sheeting. The transformer has closed top and bottom, and horizontal slots (15-17) through the sides (5, 6) so that liquid may flow from the interior and circulate through the vertical channels, the corrugated sheet used being of thinner material than the sides. The channels may be formed in sets down the sides, with a heavy duty vertical stiffening rib between sets. The sides may be flanged outwards (19) top and bottom and the vertical ribs secured between them.
Patent DE-2516139-A1 (DE)
Title: Spiral staircase inter-step height-adjustable spacer - has notch-locking spiral surfaces on interfacing part-element end faces
Inventor: FRANK WILHELM
IPC: E04F11/032
Filed: 1975-04-12
Abstract: The staircase, esp of the spiral type, incorporates one or more spacer units, pref. mounted between two steps, consisting of at least two part elements, and this is adjustable for height by means of spiral surfaces. These spiral surfaces are each set on interfacing end faces of the part elements, and they have one or more locking notch fittings. They may extend over the whole width of the annular-shaped end face of the part elements. The spiral surfaces may also be given a stepped recess. There may be a separate annular structural component on the part elements, bearing the spiral surfaces, and of narrower cross-section, made pref. of plastic.