baber/WOPTO huggingface dataset:
Patent DE-2758783-A1 (DE)
Title: Extraction of molybdenum-99 - from neutron irradiated matrix by treating the acid soln. with thiocyanate soln. followed by an ion exchange treatment
Inventor: KNAPP JUTTA
IPC: C01G39/00
Filed: 1977-12-29
Abstract: The parent patent discloses the extraction of Mo-99 from a matrix contg. neutron irradiated fission prods, by digesting the matrix in an aq. alkali hydroxide soln., separating the soln. contg. Mo-99 from the residue of actinides and lanthanides, adding a mineral acid to the soln., and forming a complex of Mo-99 by addn. of thiocyanate ions, the treatment being carried out in 7 steps. The method is simplified in that the acidified soln. is treated with a thiocyanate ion contg. soln. having a SCN- concn. of 0.01 mole/l - 0.5 mole/l and subsequently with a previously conditioned organic ion exchanger of chelate forming synthetic resin type based on a styrene-divinylbenzene copolymer which contains methylene-nitriolidiacetate functional gps. and having a particle size of 35-840 mu to effect a selective sorption. The addn. of metallic Zn or Al and a reducing agent such as H, is not therefore required.
Patent DE-2758993-A1 (DE)
Title: Foundry moulds made using sand contg. no binder - where vacuum holds sand round lost pattern made of foamed plastic
Inventor: BAUR EDUARD DR ING
IPC: B22C9/04
Filed: 1977-12-30
Abstract: The mould is made of a flowable material, esp. silica sand, which is held round the pattern by a vacuum. The pattern is made of plastics, esp. foamed plastics. The pattern may be covered externally by a plastics foil (a) and/or by a coating (B) of granular material mixed with cold- or hot-setting binders. After combustion of the lost pattern, layer (b) forms the surface of the mould. The mould may be heated before filling with molten metal and/or the pattern may be heated before coating with layer (b). The pattern may contain reinforcing fibres or threads which are heated by electric resistance causing combustion of the pattern. After casting, the hot sand may be removed by suction and directly fed into the next moulding box.
Patent DE-2801992-A1 (DE)
Title: Alarm buzzer for quartz alarm clock - has energising coil supplied by frequency divider in clock timing circuit
Inventor: JAUCH WIELAND
IPC: G04G13/02
Filed: 1978-01-18
Abstract: The alarm signal generator for an alarm clock comprises a buzzer with a high inductance and a membrane having a reaction element projecting into an energising coil (1) controlled by a signal with a frequency equal to, or in the range of, the resonance frequency of the buzzer. This signal is supplied by the frequency divider circuit interposed between the quartz oscillator and the time display for the clock. Pref. the energising coil (1) is coupled at one side to a centre tap of an inverter (4), using two MOSFET's T1, T2) their gates controlled by a common rectangular pulse train. The inverter circuit (4) and the buzzer coil (1) are coupled via a switch (7) which closes when the alarm time is reached.
Patent DE-2810683-A1 (DE)
Title: Throttle butterfly valve with split housing - has flanges formed by sheet metal stampings with handle locking device
Inventor: NANZ DIETER
IPC: F16K1/226
Filed: 1978-03-11
Abstract: The throttle butterfly valve has a housing in two halves screwed together by their flanges and with unions welded to the flanges. There are semi-cylindrical recesses at right angles to the flow direction in the mating faces forming bearings for the valve spindle. A sealing ring for the spindle also forms the valve seat, being accommodated in an undercut recess in the housing round the bore. The flanges are sheet-metal stampings, each comprising an annular portion containing the spindle recesses and a portion for welding to the union. One or both of them have a portion outwards at right angles from the outer edge near the spindle recesses, forming part of a locking mechanism for a handle.
Patent DE-2815292-A1 (DE)
Title: Main current carrying component with metering facility - has exposed loop for use with current transformer ammeter showing load current
Inventor: HINRICHS MARTINA
IPC: G01R1/20
Filed: 1978-04-08
Abstract: The main current-carrying fixture, e.g. switch, fuse, or terminal provides a simple means of checking current to consumer circuits. The fuse holder cap or similar fitting has a slotted recess (2) in one edge of the insulator (3). Bridging the gap in the recess is a metering loop (3) consisting of an insulated conductor which carries the full load current flowing through the fitting. With the aid of the jaws of a current-transformer type of ammeter, which are clamped around the conductor, the load current can quickly be determined. The same facility can be employed with automatic cut-outs, circuit breakers,.
Patent DE-2820329-A1 (DE)
Title: Valve shaft for viscous liquids spinneret plate - has holes controlled by central revolving rod with longitudinal notch
Inventor: RICKE HANS-BENNO DIPL PHYS DR
IPC: B29C48/50
Filed: 1978-05-10
Abstract: A spinnerette for viscous liqs. has one or more parallel rows of outlet holes which can be closed off individually or in gps. A revolving cylinder, with a sector cut out along its entire length, is the valve shaft. This is parallel to and covers each row of holes by presenting either its cut out section in the open position or its solid section to close the holes. The device acts positively immediately to permit or stop flow through all holes, and allows effective use of each hole with no drips and is vacuum-tight.
Patent DE-2824059-A1 (DE)
Title: Final phase guiding system for projectiles - has gyroscopic search axis influenced in final stage by search signal
Inventor: HARTMANN ULRICH DIPL ING DR
IPC: F41G7/22
Filed: 1973-05-12
Abstract: The final phase guiding system of projectiles has a gyroscopic search axis. The search device responds to target and search axis deviation signals. In the initial steering phase is generated a signal in proportion to the deviation of the search axis from the position (18) of the projectiles. The gyroscope and its connected search device are linked to this projectile fixed position electrically. The position deviation signal is coupled in opposition to the search signal actuating a servomotor.
Patent DE-2824957-A1 (DE)
Title: Electronic DC power controller - has control circuit for switching transistor, to which control voltage is applied
Inventor: KIENSCHERF ECKHARD DIPL ING
IPC: H02M3/155
Filed: 1978-06-07
Abstract: The controller continuously varies a DC power in accordance with a pulse width modulated control voltage. It uses a self exited locking transformer or a stepping down transformer. A control circuit is used as the feed-back loop and it is connected to the switching transistor (T1) base. It is in series with the feed-back winding (II) and is used as the power control element. It comprises at least one FET to whose gate the control voltage is applied, generated from a pulse width modulated voltage by an integrator and a voltage divider. When idle the DC voltage converter output is short-circulated by a transistor (T8) which is blocked when the converter is driven.
Patent DE-2825338-A1 (DE)
Title: Rendering expansion joint corner hand cutter and smoother - has blade setter controlling cutting pressure, depending on material hardness
Inventor: PLAMPER ERNST
IPC: E04F21/00
Filed: 1978-06-09
Abstract: Cutting and smoothing operations are combined in a single hand tool, for producing a perfectly finished rendering expansion joint, with both operations accomplished in a single process. The setting device sited on the cutting device serves for regulation of cutter pressure, aligned in accordance with the degree of hardness of the rendering which is to be cut. Work is simplified and accelerated, with blade inclined at 45 deg. and effecting mitre cutting, and two building elements separated precisely at the corner point where fissures may occur. Minimum manual pressure is needed.
Patent DE-2826723-A1 (DE)
Title: Temp. measurement by NTC conductor - capacitor which is charged to specified voltage and discharged to another voltage
Inventor: HAACK DIETER ING GRAD
IPC: H03M1/00
Filed: 1978-06-19
Abstract: A capacitor is charged to a voltage proportional to the instantaneous resistance of the NTC conductor, and then discharged through a specified resistance to a specified voltage. The discharge time is measured. It corresponds to the natural logarithm of the NTC conductor resistance. The temp. in deg. K of the NTC conductor is calculated from the time interval using an equation of the form T = C(1)/ln R(T) + C(2).
Patent DE-2830566-A1 (DE)
Title: Hip-bone recess former - has adjustable alignment and guide mechanism which is automatically locked in set position
Inventor: NEUHAEUSER HANS GUSTAV
IPC: A61B17/17
Filed: 1978-07-12
Abstract: The instrument forms a recess in a hip-bone for the insertion of an artificial socket, this accommodating a mating portion of an artificial joint mounted in the thigh-bone. It has an alignment and guide mechanism to keep the cutter in the desired working position. The mechanism (12) fits on the hip-bone, and is adjustable to the desired angle in relation to it, locking automatically. It can be set by means of three supporting members (14, 16, 18), spaced apart at angular intervals and parallel to the axis of the cutter (48). These are independently adjustable for length, and lockable.
Patent DE-2836826-A1 (DE)
Title: Bottle carrier of flat folding material - has walls and base formed by single sheet with separate insert
Inventor: HOELBE KARL-HEINZ
IPC: B65D71/68
Filed: 1978-08-23
Abstract: The carrier is of flat foldable material, being particularly for bottles, and has four walls, a base, transverse ribs and a central lengthwise one, enclosing compartments open at the top, together with a handle at the top of the lengthwise rib. A single sheet is folded into an open-topped box with four walls (14, 15, 17, 19) and a base (11). This is secured to a separate component forming the ribs and handle and which fits inside it. Tw opposite walls (14, 15) may be joined to the base along grooved lines, while the other two (17, 19) are attached to the first two along grooved lines (16, 18) at right angles to the first two (12, 13). The walls are secured to each other by folding lugs (21, 23, 26, 27) pref. by gluing.
Patent DE-2837329-A1 (DE)
Title: Elastically yielding intermediate layer for hot mangle cylinders - is of rubber or foam with passages for steam
Inventor: WALTERSCHEID FRANZ WILHELM
IPC: D06F83/00
Filed: 1978-08-26
Abstract: Bands of rubber or synthetic material delimiting flow passages for steam, form an elastic intermediate layer for hot mangle cylinders, from the interior of which the steam is sucked out by a fan. The bands may be of an open-pored foam, permeable by steam, or may have lengthways and transverse running outwardly open grooves which intersect each other. They are glued to the surface of the cylinder. The arrangement is a marked improvement on the use of intermediate bands of metal fitted with spiral springs. These are expensive to produce, and risk being distorted permanently when the laundry items are put through irregularly, rolled up or overlapping each other. Metal hands may also cause embossing contours on the linen.
Patent DE-2843844-A1 (DE)
Title: Portable pile driver rammers guiding system - has top sliding holder and bottom bolt for hinged carrier connection
Inventor: FAUERBACH ANTON
IPC: E02D7/16
Filed: 1978-10-07
Abstract: The guideway for the rammers is connected by hinging via a sliding retainer at the top end, and via a bolt at the bottom end, with a carrier on the portable machine for driving piles into foundations. The bolt and carrier are supportively hinged on the foundations via base plates, and guying cables are provided for additional retention of the rammers. The bolt may be made up from cylindrical, triangular or square-sectioned elements which are telescopically extensible. No additional vehicles or equipment are needed for transport, erection or operation, and repositioning on site is easy.
Patent DE-2848955-A1 (DE)
Title: Adjustable connection between socket and bar - has slit plastics socket with internal grooves engaging with bar
Inventor: REINHARD THEODOR
IPC: F16B7/14
Filed: 1978-11-11
Abstract: The connection, adjustable for length, is subjected to pull and thrust forces between an elastic socket slit in the lengthwise direction and a bar in line with it transmitting adjusting movement. The bar has transverse or peripheral grooves, and snaps into the socket radially via the slit, protrusions inside the socket engaging in the grooves. The socket (1) encloses the round bar end (5) for between 270 and 300 deg., and is of plastic. It has mating transverse or peripheral grooves on the inside.
Patent DE-2850143-A1 (DE)
Title: Knitting machine lock - controls butts of knitting units, to reduce needle rupture, and increase knitting speed
Inventor: SCHULER BERNHARD DIPL ING
IPC: D04B15/32
Filed: 1978-11-18
Abstract: A lock for a knitting machine controls the knitting units, including needles, sinker plates and push-bars, each of which may have )=1 butt, by means of several drawing elements acting on the butts of the units and drawing element ramps having a negative slope. Each drawing element is associated with a counter guide element having an impact zone for the butts of the knitting units controlled by the drawing elements and all the impact zones have positive slopes in relation to the drawing ramps. The lock of the invention reduces the possibility of needle rupture, and allows high knitting speeds to be obtd. The device may be used on flat knitting machines. or rotary lock cages or rotary neddle cylinders on circular machines, esp. on wide circular machines of >=20". It is partic. useful on the wide machines having as many as 144 feeds, and on Interlock machines.
Patent DE-2903514-A1 (DE)
Title: Telephone exchange supplementary information storage - enables subscriber to access store and inputs information for transfer to other subscriber
Inventor: POLLACK WOLFGANG
IPC: H04M3/533
Filed: 1979-01-30
Abstract: The telephone exchange has supplementary storage which can be accessed by subscribers and into which they can put information to be distributed or transferred to another subscriber. The call routing through the exchange is controlled by the common control (ST) equipment and the supplementary storage (D, Q, Xu) is coupled to both the switch lock (K) and the common control (ST). A subscriber (T1) accesses the supplementary storage (D) by using a call number and by being routed to it through the switch block (K) by the common control (ST). The subscriber inputs the destination and information to the storage (D). From storage (D) the common control is accessed (ST from Xu to AR) and the required subscriber connected if a path is free. Information is transferred from the holding part of the store (D) to the transmitter section (Q) through the switch block to the called subscriber.
Patent DE-2905111-A1 (DE)
Title: Piece goods loading machine - forms layers of goods on pallets and has pallet supports guided on vertical columns fixed to truck
Inventor: BLOCK GERHARD
IPC: B65G57/06
Filed: 1979-02-10
Abstract: The machine loads piece goods in layers onto pallets, having a mechanism assembling a layer at a time, this being then transported onto the pallet. Below the transfer area there is a buffer track with a travelling truck having two or more pallet supports lifting the pallets into position to receive the layer. The supports (15) are guided up and down on vertical columns (33) fixed to the truck (14) and held on them by detachable locking devices at the height determined by the lifting mechanism (16).
Patent DE-2906578-A1 (DE)
Title: Correction system burst errors - reduces time by using same structure for generating syndrome and burst pattern
Inventor: WAEL ADI
IPC: H03M13/17
Filed: 1979-02-21
Abstract: The correction system codes and decodes f-blockwise for automatic correction of burst errors of lengths up to be symbols such that the multiplication matrix used for coding is also used for syndrome generation and error correction in that the c = bc+f-1 consecutive symbols in the burst selection region of the syndrome register only checks 2(f-1) symbols against a criterion independent of the generator polynomial and from bc whilst the remaining symbols are only checked to ascertain whether they contain zeros. In a certain region of the syndrome register, the two distances L1 and L2 of symbols differing from zero are determined by the region's boundaries and then checked to ensure that L1 + L2 is greater than or equal to f-1.
Patent DE-2908901-A1 (DE)
Title: Metal sheet stacker machine - holds sheets under conveyor belt by suction and drops them by releasing vacuum
Inventor: WEH HERBERT
IPC: B65H29/68
Filed: 1979-03-07
Abstract: The machine is used for continuously stacking of metal sheets (B) of different thickness. It comprises an endless conveyor (2a) which holds successive sheets on its lower part by vacuum (from 3) and drops them on a vertically movable table (4a) at a stacking station (4) by releasing the vacuum. The station has a stop (5) for the leading end of each sheet and a guide (6) for the trailing end. This guide brakes the movement of the sheet as it drops down on the stack. The guide is pref. a ledge across the direction of transport (R) and may have a number of suction orifices (8, 9) to provide the braking action.
Patent DE-2912326-A1 (DE)
Title: Polyelectrolyte addn. for wet dust control - e.g. in mining, pref. using opt. modified acrylamide! polymer or poly:amine
Inventor: SHARIFF HAMID A DIPL CHEM DR
IPC: B01D47/00
Filed: 1979-03-28
Abstract: Polyelectrolytes, pref. opt. modified acrylamide polymers and polyamines, are added to wet dust control processes, to improve the dust-bonding capacity of water. The processes are used esp. in mining, to prevent coal dust explosions and reduce silicosis. Larger dust aggregates are formed. Excellent dust bonding activity can be achieve with 0.005-0.2% polyelectrolyte. E.g. the addn. of 0.01% 75/25 acrylamide/dimethylaminoethyl methacrylate copolymer to sprinkling water reduced fine dust formation from 5.9-to 2.2 mg/m3 and quartz dust from 0.58 to 0.17 mg/m3, i.e. 63% activity.
Patent DE-2914192-A1 (DE)
Title: Terminal strip insulating partition - has perpendicular cover with underside spring-loaded hooks
Inventor: SIMMACK WERNER
IPC: H01R9/26
Filed: 1979-04-07
Abstract: The strip connector for switching units has a cut-out on the side of the insulator for an insulating partition to be inserted. This secures the adjacent connector terminals against creep and air leakages. The design eliminates the risk of partition drop-out in the course of jerks or when roughly handling the connector strip as can take place during cleaning. The extraction of the partition can take place only when using a tool, such as a screwdriver. The connectors are mounted on a carrier and held by bridges with spacers allowing the insertion of partitions secured by a cover plate and resilient hooks.
Patent DE-2917407-A1 (DE)
Title: High frequency FET - has narrow channel between source and drain electrodes for high velocity electron injection
Inventor: BENEKING HEINZ PROF DR RER NAT
IPC: H01L29/80
Filed: 1979-04-28
Abstract: The high frequency field effect transistor with a gate electrode forming a rectifier contact, has source and drain electrodes forming a channel on the semiconductor layer. Its length is less than 1 micron. The source electrode consists of a rectifying metal and semiconductor contact material which receives a potential so that it is tunnelled by charge carriers so that hot electrons are injected into the channel from the source electrode with a high initial velocity. The potential is selected so that the charge carriers have the maximum possible drift velocity. The channel length can be less than 0.4 micron. The drain electrode is of a non-rectifying ohmic metal contact in the semiconductor layer.
Patent DE-2920389-A1 (DE)
Title: Corona discharge monitoring for grooved stator dynamos - using HF signal pick=up aerial on rotor and position transducer
Inventor: FREEMAN DAVID LEWIS
IPC: H02K11/21
Filed: 1979-05-19
Abstract: A corona discharge monitoring arrangement, esp. for dynamo machines with a rotor and a stator and isolated conductors placed in slots in the stator, operates satisfactorily whilst the machine is functioning. It does not use the unsatisfactory acoustic detection method. An antenna mounted on the rotor turns with it and receives signals arising from corona discharges in the grooves as it passes by them. The received signals are passed to an external evaluation circuit. The latter also receives a rotor position signal and synchronises the two signals so as to enable display of the incidence of h.f. signals with reference to position on the stator. The transfer of signals is via a rotary coupling consisting of a dual circular track arrangement with terminating impedances on each track.
Patent DE-2920632-A1 (DE)
Title: Cathodic deposition of nickel on aluminium and its alloys - where workpieces are anodically treated in phosphoric acid prior to immersion in nickel bath
Inventor: RIEGER FRANZ
IPC: C25D5/44
Filed: 1979-05-22
Abstract: Workpieces fed through a row of cleaning baths and are then subjected to a voltage in an acid activating bath (I), followed by immersion in the Ni plating bath (II). In bath (I), the applied voltage is increased in severan steps, esp. starting from zero to a few volts. The max voltage used in bath (I) pref. increases with the purity of the Al being plated, and esp. up to max. 80-100 V. The voltage in bath (I) is pref. increased in 3-5 steps, and the immersion time pref. increases with the purity of the Al up to 1/4 hour. When steel, brass, bronze, Cu, Sn or cast iron workpieces are to be Ni plated, bath (I) is not used. Process requires only one Ni bath, and can be used e.g. on Al bumpers employed on motor cars to save wt. and therefore fuel. All types of Al can be coated with Ni.
Patent DE-2925119-A1 (DE)
Title: Heating expenses determination in block of flats - detects temp. difference of each radiator in flat with value multiplied by special factor, and integrated
Inventor: WIENER ERNST
IPC: G01K17/08
Filed: 1979-06-22
Abstract: The block of flats, for which the flat-related expenses are to be determined is provided with a central heating plant. The temperature difference of each radiator against a standard value is electronically determined and multiplied by a valuation factor, different for each type, size etc. of each flat. This value is summated for all radiators and integrated over a time period. The proportion of a radiator equal to zero, as long as its temperature is below the standard value. The circuit has temperature sensors, a microprocessor (3) with an oscillator, a multiplexer, an A/D converter, and an electronic counter (4). All temperature sensors of the individual radiators as subsequently interrogated during preset periods. The A/D converter provides from the analog measured value(s) a pulse train with number of pulses proportional to the measure value. From this value a standard value is subtracted by the microprocessor.
Patent DE-2925159-A1 (DE)
Title: Plastic laminate container - with tear strip of same three layer material bonded across partly perforated access
Inventor: HILTMANN KLAUSFUERGEN
IPC: B29C65/00
Filed: 1979-06-22
Abstract: A container for fluids or pastes which is to be opened for the insertion of a straw or to empty it is pref. made of laminated material, with an outer layer of polyester, cellophane or polypropylene, a middle layer of aluminium foil and an inner layer of polyethylene. A circular cut pierces the two outer layers for the ultimate access hole, and a tear strip of the same laminate is joined across it so as to join up the two polyethylene layers. A convex tool is used to join the tear strip to the container in a dimple. Arrangement eliminates any contact of the contents with adhesive or metal and ensures clean and neat access without any need for extra careful handling.