baber/WOPTO huggingface dataset:
Patent DE-2416351-A1 (DE)
Title: Prodn. of hydrogen by water gas shift reaction - with a metal sulphide catalyst supported on alumina
Inventor: LEVINSON GERALD STANLEY
IPC: B01J23/88
Filed: 1974-04-04
Abstract: The prodn. of an H2-rich gas by reacting a CO-contg. gas with steam is carried out in the presence of a catalyst contg. sulphides of Ni and/or Co and Mo supported on an alumina having a SiO2 content of 1 wt.%, a sulphate content of 1 wt.%, a halogen content of 0.2 wt.%, a specific surface of >150 m2/g, a pore vol. of >0.3 ml/g, an av. pore dia. (calcd. as 4 x 103 times the pore vol. divided by the specific surface) of >4.5 nm, and a prod. of specific surface and density of >125 m2/ml. A prefd. catalyst contains 3,5 pbw Ni, 8 pbw Mo and 100 pbw Al2O3. The catalysts are highly active and can be used for both low-temp. (200-275 degrees C) and high temp. (325-400 degrees C) water gas shift reactions.
Patent DE-2418975-A1 (DE)
Title: Dihydroxydiphenyl-alkane prepn. from aldehydes and phenols - catalysed by acids of phosphorus with continuous removal of water formed
Inventor: BAUER KURT DR
IPC: C07C37/20
Filed: 1974-04-19
Abstract: Acid-catalysed prepn. of dihydroxydiphenyl-alkanes, (I) by reacting aldehydes having b. pts. 20-100 degrees C with phenols, takes place in the presence of an acid of P, at 110-180 degrees C, with continuous removal from reaction mixt. of water formed in reaction, by azeotropic distn., opt. with an inert solvent. (I) are starting matls. for prepn. of epoxide resins and high mol. wt. thermoplastic polycondensates, e.g. polycarbonates and polysulphones.
Patent DE-2421926-A1 (DE)
Title: Analogue-digital conversion of measured value - with data pick-up having resistance as exponential function of quantity to be measured
Inventor: BREYMANN ULRICH
IPC: H03M1/00
Filed: 1974-05-07
Abstract: The measuring voltage is generated by a circuit contg. a constant current source (1) connected in series with a data pick-up (2). The data pick-up and an element (3) producing the reference voltage are each connected to an input of an electronic comparator (4). The comparator output is connected to a counter with a digital reading (5) or an oscillator (6) in such a way that the oscillator or counter is stopped when the voltages at the comparator inputs are the same. The counter counts the vibrations or pulses of the oscillator from the beginning of a measuring cycle. The measuring voltage is compared with a voltage at resistor-capacitor or resistor-induction coil combination.
Patent DE-2422061-A1 (DE)
Title: Overload protection - for e.g. power thyristors in household light dimmers, has PTC resistor with small thermal time const.
Inventor: DUGGE KARL-WILHELM DIPL ING
IPC: H02H9/02
Filed: 1974-05-07
Abstract: The overload protection, for a power semiconductor, consists of a resistor with a positive temperature coefficient coupled in series with the semiconductor component requiring protection. The PTC resistor's cold resistance is low enough not to adversely affect operating conditions and its thermal time constant is smaller than the semiconductor component's so that it responds faster to temperature changes. The semiconductor component may be a thyristor or triac in household devices such as light dimmers and proximity switches etc. The resistor responds rapidly to short circuits arising on the load side and has limited heat losses. The resistor limits the current flow through the semiconductor element when a short circuit appears. Its operation is reliable since its thermic time constant is small compared with that of the semiconductor element to be protected.
Patent DE-2422702-A1 (DE)
Title: Furnace reel for rolling mills - has hub segments and drum segments supported in reel brackets with pins to prevent rotation
Inventor: SEIBEL ARTUR
IPC: B21C47/26
Filed: 1974-05-10
Abstract: Furnace reel, especially for rolling mills when on a cooled shaft are freely arranged two reel brackets and hub segments, with two drum segments between the brackets where the device is elastically held together against axial displacement by spring force. The hub segments (13) and the drum segments (16) are supported in the reel brackets (12) with additional pins (25) stops (17, 19), grooves etc. to prevent rotation about their longitudinal axis which is parallel to the shaft (11). Specifically, the segments (13, 16) have attachments which are supported outside the slit region (21, 22) in a recess or at the outer edge (18, 20) of the reel bracket. The attachments and the segments are in one piece.
Patent DE-2424919-A1 (DE)
Title: Open-end spinning shaft seal - has disc in housing with small hole for shaft to preserve partial vacuum
Inventor: STAHLECKER HANS
IPC: D01H4/08
Filed: 1974-05-22
Abstract: Appts. to seal the shaft aperture in an open-end spinning unit housing, to prevent the ingress of air into the underpressure within the housing, has a sealing disc for the shaft drilling with an aperture for the shaft to pass through which has a dia. smaller than the drilling and the collar supporting the shaft stuf passing through the seal. The design prevents the ingress of air which would generate false airstreams within the housing, and also allows the shaft and turbine to be withdrawn from the unit easily giving the required tolerance between the supporting collar and the drilling for the collar.
Patent DE-2430759-A1 (DE)
Title: Alcoholate orthophosphate of photographic colour developer - 4-amino-3-methyl-N-ethyl-N-(beta-methylsulphonamidoethyl)-aniline salt and 1-3C alcohols
Inventor: BULLOCH DAVID KEDDIE
IPC: C07C311/02
Filed: 1974-06-26
Abstract: Addn. cpds. of formula (I) (where R is 1-3C alkyl) 4-amino-3-methyl-N-ethyl-N-1 beta-methylsulphonamidoethyl) araline orthophosphate with a 1-3C alcohol are prepd. by adding orthophosphoric acid to an alcoholic amine soln contg. 0.1-10% Pd/C catalyst. The cpds. are used as colour developers in photography.
Patent DE-2431912-A1 (DE)
Title: Safety device for electric actuator - produces control signal from difference of pilot signal and feedback signal and produces fault signal
Inventor: WUEST PETER DIPL ING
IPC: B64C13/50
Filed: 1974-07-03
Abstract: The circuit arrangement is intended specially for control of aircraft rudder surfaces. Previous design used for the monitoring of the output side of an actuator an arrangement comparing the output side of the actuator with the output side of an electrical simulation of an actuator. The differential signals from the two outputs were used as an error criterion. The aim of the present arrangement is to detect faults in the electrical control and/or in the actuator and to eliminate the possibility of unintentional switch-offs during normal operation. The new concept solves this problem by using for the formation of a fault signal and a proportional actuation speed-related signal is counter-connected in such a way that at normal operation the fault signal becomes zero. There are two monitors (56, 58) connected to an OR gate (60). A threshold switch (52, 54) is connected to each monitor. Each threshold switch is fed by a summing device fed by a series of filters (38, 40, 42) and (44, 46, 48).
Patent DE-2433800-A1 (DE)
Title: Holographic diffraction gratings with asymmetrical groove contours - are produced with fixed frequency relationship between fringe systems
Inventor: SCHMAHL GUENTER DIPL PHYS DR
IPC: G02B5/18
Filed: 1974-07-13
Abstract: The diffraction gratings are produced with the help of laser light which is made to form fringes on photoresistive coatings by imphase superposition of different fringe systems produced, using Fournier synthesis. The interference wave fronts which are required to produce the fring systems are obtained in the form of wave fronts of different orders of diffraction from a single diffraction grating or from different parts of identical gratings on a common recording medium. The methods suitable for production of place reflection and transmission gratings and also for concave gratings which have image-forming characteristics. A photoresist layer (b) may be illuminated by light from a reflection grating (g).
Patent DE-2434276-A1 (DE)
Title: Sound-absorbent air-supported hangar-type structure - with intermediate ceiling suspended from upper membrane
Inventor: STUHLMANN WERNER
IPC: E04H15/22
Filed: 1974-07-17
Abstract: The purpose is to reduce unwanted noise effects in a dome-type air-supported structure, such as may be used for roofing over a swimming-pool or sports ground, where reflections can lead to excessive concentrations of noise at certain points, and to achieve this without adding heavy cladding which might deform the membrane. An intermediate ceiling (6) is hung on the upper membrane; there may be a gap between the peripheral line of this and the peripheral line of the membrane running at the same level. The ceiling periphery can be tied to a fixing strip attached to the structure membrane. Suspension may be by means of cables hung by holder devices on the membrane, with cable clamps for height correction. Sound-insulating media may be fitted to the underside of the ceiling.
Patent DE-2435289-A1 (DE)
Title: Device removing dust and electro-static charge from tablets - has flat sieve with rotating brush and radial tablet take-off pipe
Inventor: BOHLE LORENZ
IPC: A61J3/10
Filed: 1974-07-23
Abstract: A device to deburr, remove dust from and remove electrostatic charge from tablets having a sieve over the surface of which the tablets are moved, has a flat sieve (13) with a brush rotating above it. Below the flat sieve (13) is a container (7) which collects dust removed from the tablets. A steeply downward angled tablet take-off pipe (14, 18) leads from an opening of the sieve (13) situated in a radial manner around the sieve (13). A device for removal of static charge from the tablets is situated on the tablet inflow channel above the sieve (13).
Patent DE-2437625-A1 (DE)
Title: Vehicle double braking system - has double cylinder arrangement providing limited movement for each brake shoe
Inventor: FRANGIUDAKIS EMMANUEL
IPC: F16D65/22
Filed: 1974-08-05
Abstract: The brake mechanism has a circular drum (36) connected to the wheel of a vehicle or drive and rotates with it. Two arcuate brake shoes, (38, 40) are held in the drum and these are able to pivote about pins (42, 44) held on a fixed hub (46). The hydraulic actuator consists of a pair of tubular cylinders connected in telescopic form and able to slide. The inner ends of the cylinders are open and the outer ends of the cylinders are closed. A piston is provided within each cylinder for limiting the reciprocating movement. Hydraulic fluid supply and return lines are connected to these closed ends of cylinders and each cylinder is supplied by a separate actuating force.
Patent DE-2444097-A1 (DE)
Title: Optical storage device for selective projection of matrix of images - has lens matrix with collecting lens to illuminate image matrix
Inventor: BESTENREINER FRIEDRICH DR
IPC: G03B21/11
Filed: 1974-09-14
Abstract: An optical storage device is used for selective projection of a picture consisting of a matrix of images by means of a lens matrix onto a viewing surface having a controllable illumination device for the images to be projected. The device makes use of a collecting lens (4) in front of the image matrix (2) to illuminate the images (2a-e) in the projection direction. The focal point of the lens (4) is situated in a mirror (6) which can be moved in two coordinated directons. The projection light source which is previously focussed on this focal point is provided for illumination.
Patent DE-2446337-A1 (DE)
Title: Non-continuous signals transmission method - involves transmission between two terminal stations over opposite direction data channels
Inventor: HAGER HERBERT DIPL ING
IPC: H04L1/00
Filed: 1974-09-27
Abstract: When a signal which is disturbed or distorted by interference is received, the receiving station sends a repetition request signal to the corresponding transmission unit which repeats a specified number of already transmitted signals. Reception ability and the processing speed of receivers and processing units are adjusted to the mean incoming traffic, and when this limit is exceeded, the receiving station sends a repetition request signal to the transmitting terminal station. The two units in a two-way linkage are of similar type. They comprise a transmit-receive unit (SA-EA) connected to a data processor (VTA) and a counter (2A). The data processor and counter are connected to a comparator (V).
Patent DE-2450390-A1 (DE)
Title: Liquid crystal light control device - gives precise control of camera shutter
Inventor: GURTLER RICHARD WARREN
IPC: G02F1/1347
Filed: 1974-10-23
Abstract: The device has a liquid crystal cell with the liquid crystal between two boundary surfaces and a polariser adjacent to one surface for polarisation in a first direction. A second liquid crystal cell with the liquid crystal between a further two boundary surfaces has one surface adjacent to one of the surfaces of the first cell and has a polariser for polarisation in a second direction adjacent to its other surface. The two directions of polarisation are pref. at right angles to one another. The resulting electronic shutter can also be used in conjunction with a mechanical shutter to completely suppress the residual light from the liquid crystal cells in the steady state off condition.
Patent DE-2450771-A1 (DE)
Title: Tape transport mechanism for cassette recorders - has fixed motor and swinging pinion to both clutch spindles
Inventor: HERLET KARL
IPC: G11B15/30
Filed: 1974-10-25
Abstract: Power is transmitted by a gear drive which has a coupling gear (6) which is kept permanently in mesh with a motor pinion (11); and a switching device couples the gear (6) as required with a gear driving one or the other clutch spindle (1, 2). There is an idler gear (3) to reverse the direction of drive to the second clutch spindle (2). The switching device consists of a bar (7) mounted on two radius arms (8), and the axis of the motor pinion (11) is on the straight line joining the fixed pivots of the radius arms. Pusher devices are used to move the bar (7) to bring the gearwheel (6) into mesh with either the pinion (1a) or the pinion (3) as required.
Patent DE-2504941-A1 (DE)
Title: Computer controlled telephone exchange - has circuit for ringing signal generation using HF pulses for computer control
Inventor: STEIGERWALD WERNER
IPC: H04M19/02
Filed: 1975-02-06
Abstract: In the ringing signal generator for a computer controlled telephone exchange the high frequency pulses are reduced by frequency dividing stages to a frequency suitable for ringing, and applied from the circuit output to the subscriber line. An electronic monitoring device detects overloads at the circuit output, or short circuits at a specified point, and also missing low frequency pulses at another points and signals these states to the central control. Preferably the signals for overload or missing low frequency pulses states are fed to the central station separately. Between the frequency dividing stages and the monitor output may be incorporated a filter, formed by an operational amplifier.
Patent DE-2507249-A1 (DE)
Title: Daylight film strip viewer - has binocular eyepiece and lens system and holder for single frame viewing
Inventor: LIEDTKE DIETER WALTER
IPC: G02B27/02
Filed: 1975-02-20
Abstract: Light paths or axes (9a, 9b), allocated to both eye pieces, converge at about the centre of a common picture gate (12) in the viewing planes. The film guiding and holding device has a support (10) on which the film rests when moved by a movable element of an externally operated mechanical transport mechanism (17-19). In an embodiment for a film cassette a carrier wall for a fin (5) is provided. This carrier wall is formed by an auxiliary chamber wall (22) running parallel to the long sides of the magazine chamber (13). When the cassette (3) is mounted on one wall of the housing the wall (22) increasing the entry of light to picture gate (12) can be omitted.
Patent DE-2525045-A1 (DE)
Title: Double walled exhaust pipe for IC engines - has inner and outer walls separated by steel wire mesh
Inventor: JUNKER MANFRED DIPL ING
IPC: F01N13/08
Filed: 1975-06-03
Abstract: The exhaust pipe has an inner steel tube (1) and a similar outer steel tube (3) separated by an annular air gap. A wire mesh (2) is placed within this gap and maintains the spacing between the inner and outer tubes. This ensures that thermal deformation of the assembly under working conditions does not destroy the air space which provides both thermal and acoustic insulation. The outer tube ( 3) has radial holes (4) in its circumference which improve heat dissipaton from the exhaust pipe. A double walled exhaust pipe has good sound insulation properties and is easily attached to a vehicle. The uniform support provided by the wire mesh also reduces vibration and resulting noise.
Patent DE-2530342-A1 (DE)
Title: Potato lifter with belt system - has undersize and potatoes and earth dropped onto lower belt and fed to different speed counter rotating rollers
IPC: A01D21/00
Filed: 1975-07-08
Abstract: The potato lifter with an adjoining elevator and additional conveyor at the delivery end carries the potatoes onward whilst allowing undersize potatoes and loose earth to drop down through holes in the conveyors. A bottom conveyor below the upper belts catches the undersize passing through these and delivers the undersize to two rollers (15, 16) close to the delivery end of the bottom belt. The rollers are spaced and rotated opposite ways at different speeds. Pref. one roller (15) rotates at a peripheral speed three times than of the second roller (16). One of the rollers is urged by springs towards the second roller, but can move away from this second roller by a specified amount when it overcomes the force of the load spring.
Patent DE-2533594-A1 (DE)
Title: Syringe with tubular mounting for external canula - has conical tubular mounting over which flexible canula base slips on
Inventor: BAY-SCHMITH NILS
IPC: A61M5/34
Filed: 1975-07-26
Abstract: A syringe with a tubular support mounted on the syringe barrel whose external surface acts as a seating for muft type canula grips made of an elastic material portic made from plastic or rubber, is constructed such that the maximum external diameter of the outer end of the tubular support (11) is larger than the minimum internal diameter of the open end piece of the canula grip in its untensioned condition. The external surface of the tubular support (11) is conical in shape and decreases in diameter as it approaches the syringe barrel (10).
Patent DE-2539658-A1 (DE)
Title: Synthetic thermosetting resin fibre-wrapping reinforced pipes - by casting a core, wrapping and setting whilst centrifuging in mould
Inventor: LINDNER HEINZ-JOACHIM DR RER N
IPC: B29C70/16
Filed: 1975-09-05
Abstract: Fibre-wrapping reinforced pipes of synthetic, esp. thermosetting resin, are produced by first mg. a synthetic tube core. A fibre reinfor cement of (in)organic material is wound on this and the wrapped core, enclosed in an outer sleeve is heated whilts being rotated at high speed. After cooling off, the fibre reinforced pipe is ejected from the mould. A thermoplastic core may also be used, and fibre in the form of yarns, tapes, rovings, fabrics, fleeces, etc. are applicable. Fibre-reinforced pipes of synthetic material which are uniform and free from pores, can be produced without the need for expensive supplementary treatment.
Patent DE-2539758-A1 (DE)
Title: Protector baffle in fuel tank inlet - is secured by tightening nut on bolt held centrally in connector by domed spreader plate
Inventor: LINZENICH HERBERT
IPC: B65D90/04
Filed: 1975-09-06
Abstract: The arrangement is for securing a protective baffle (3) in a heating oil tank (1) by to a tank connector (2). The baffle is held between a seal ring (4) on the inside of the tank and a clamp ring (5) of a bridge piece (6) with central bore (8). The securing force is applied by tightening a nut (9) on a bolt (7) held in a fixing element (10) inside the stub end.: The fixing element consists of a domed plate (10) of resilient material which extends at right angles to the bolt (7), and is carried on a collar (13). By tightening the nut, an axial force is applied to the convex side of the plate and spreads it outwards.
Patent DE-2539854-A1 (DE)
Title: Collapsible table with four hinged legs and stays - has light-weight low-cost design with stable support formed by interconnected legs and edges
Inventor: TRUNINGER ALFRED
IPC: A47B3/087
Filed: 1975-09-08
Abstract: The fold-down table which comprises a main table top (1) and an auxiliary table top (2) is fitted with four legs (3) of which each two are connected together by an edging member (6) which is fastened by hinges (10) to the upper parts (8) of the legs. The legs (3) and edging member (6) are fastened to swivel about a point of attachment (5) beneath the main table top (1) so that when in the upright position they are braced against an end face (9) of the table top (1) in a stable manner. The secondary table top (2) is mounted beneath the main top (1) by means of guide rails (4) so that it can be extended between the legs (3) when required, and a further secondary table top could also be fitted.
Patent DE-2540725-A1 (DE)
Title: Ejecting injection mouldings with thread and collar - using ejector pin with neck to take spring loaded balls
Inventor: JACOBY WILHELM
IPC: B29C45/40
Filed: 1975-09-12
Abstract: An injection moulding press, with one fixed and one moving tool and with an ejector pin, has an annular housing in the moving tool platen containing an ejector pin. The housing has several radial passages, each with a separate spring-loaded ball, and the ejector pin has a neck to accept those balls. Enables ejection of mouldings with thread at one end and relatively large collar at the other.
Patent DE-2541456-A1 (DE)
Title: Removable double glazing auxiliary window frame - has hollow units held by lugged corner pieces with assembly plugs
Inventor: KORTEBEIN FRIEDRICH
IPC: E06B3/28
Filed: 1975-09-15
Abstract: The base frame can be set in place to make up a double-glazed window, or removed again as required; the window frame is made up from hollow shaped units, held together at the corners by corner pieces with lugs engaging the units; these are of appropriate thickness and suitably grooved to hold the pane of glass. The corner pieces (1) are fitted with assembly plugs (8, 9) fixed to the base frame (7), sited in the corners which are clear of the shaped units, and passing through vertically. These plugs may accommodate the fixing screws (9) for the base frame, and have an internal thread for retainer elements (10) on the detachable frame. The lugs on the corner pieces may be saw-toothed in shape. Although assembled from separate elements, this can be used for semi permanent double-glazing provision.
Patent DE-2549140-A1 (DE)
Title: Plug connector for dip thermal lance - eliminates balance conductors and optimises thermo-electrical plug characteristic
Inventor: KOLB GUSTAV
IPC: G01K7/13
Filed: 1975-11-03
Abstract: A plug connection between the measurement probe and temp. sensor of a dip thermal lance for use in steel smelting temp. measurement is designed to avoid the necessity of balance conductors in the temp. sensor by using the thermocouple wires as the plug contact surfaces. The thermo-electrical characteristics of the connection are thus optimised. A contact pin is arranged coaxial to and isolated from a contact cylinder inside the lance and a contact element of insulating material carries the temp. sensor consisting of a thermocouple in ceramic material. The thermocouple wires protrude from the ceramic material through the contact element from the connection with the pin and cylinder.