baber/WOPTO huggingface dataset:
Patent DE-2446478-A1 (DE)
Title: Projection screen for microscope - uses liquid crystal display for high resolution and protective cover
Inventor: MIYAZAKI KENSAKU
IPC: G02F1/13
Filed: 1974-09-28
Abstract: The microscope can be fitted with a projection screen so that several observers can view the subject. The projection system is fitted to the camera attachment tube using a simple locking screw. Two mirrors inside the projector provide an image on a screena at the front. Conventional systems have interchangeable screens to give optimum effect, with a danger of ingress of dust into the projector when the screen is removed. The apparatus uses a liquid crystal screen with two transparent plates having the liquid crystal between them. The two transparent plates are connected to a controlled supply to regulate the intensity of the display. Sharp, clear images are produced on the screen.
Patent DE-2449638-A1 (DE)
Title: Keyboard for remote control of switching devices suitable - for radio and TV receivers automatic telephone or pockets calculators
Inventor: PREIDEL PAUL
IPC: H01H1/24
Filed: 1974-10-18
Abstract: The keys can be single or multiple, with one or several contact planes on an insulating printed circuit board printed on both sides, possibly with through contacts. A bridge-shaped contact has bent end strips inserted into holes in the circuit board. They are permanently connected to first contact surfaces on the board front and/or back surface. The contact spring central part can be moved at a small distance crom the board surface to make contact with second and further contact surfaces on the boards front and side by push-buttons mounted in holes in a cover plate above the circuit board.
Patent DE-2452145-A1 (DE)
Title: Replacement blade for windscreen wiper - uses special cutter to trim worn blade and with new blade fitted with adhesive
Inventor: SCHNEIDEREIT UDO
IPC: B60S1/38
Filed: 1974-11-02
Abstract: The wiper blade is moulded with a number of transverse ridges (8) on the head so that it can be gripped by the wiper blade holder. The blade (6) itself is linked to the blade head by a narrow neck (5) of rubber. When the blade is worn a special tool (9) is used to trim off the blade at the neck leaving a flat rubber base (8). The tool has a razor blade in a small open housing which is slid along the underside of the blade. A replacement blade is provided with a similar flat base (8) so that it can be fixed to the remaining head of the wiper by adhesive. In this way the blade can be repaired without replacing the whole wiper fitting, and without removing the wiper head from the fitting.
Patent DE-2452421-A1 (DE)
Title: Staple fibre carding machine - with faster rotating guide roller disposed immediately downstream of feed roller and above carding drum
Inventor: WIRTH WALTER ING GRAD
IPC: D01G15/04
Filed: 1974-11-05
Abstract: Carding machine having a carding drum associated with a feed roller is provided with a fibre guide roller with is arranged downstream of the feed roller and in contact with the carding drum. The fibre guide roller rotates at a faster speed than the drum. Used for carding staple fibres. Jamming of the carding drum fittings is prevented and the orientation of fibres is improved.
Patent DE-2459197-A1 (DE)
Title: Bathroom fitting for towel hook, soap container etc. - has peg with fixing screw, base and support
Inventor: JANS FRANZ WERNER
IPC: A47K1/08
Filed: 1974-12-14
Abstract: A mounting device for use partic. with bathroom fittings having a base plate which can be mounted onto a substrate support, having a peg (5) and a mounting piece (4) which can be slid into a hole (7) cut into the peg (5). The peg (5) is attached to the base plate at right angles to the plane of the plate, and has a groove cut into its periphery. A fixing device (11) is provided which is used to attach the mounting piece (4) and is inserted into the groove in the rim of the peg (5). The mounting can be used for flannel and towel hangers soap holders etc.
Patent DE-2460337-A1 (DE)
Title: Hydraulically operated lift - has extensible cage supports engaging with stationary brackets at each stopping place
Inventor: EGGER GERHART
IPC: B66B9/04
Filed: 1974-12-20
Abstract: The lift cage serves several different positions in the shaft of a building, each with a door having a locking device and opened by a cam on the cage. The latter (3) has extensible supports (9) engaging with stationary brackets at each stopping place. These supports have an extension mechanism (14, 16, 17), operating in synchronism with the cam actuating mechanism. The support extension mechanism can be spring-actuated, with a locking mechanism (16, 17, 18) securing it in the retracted position and releasable electrically. The locking mechanism can have a battery-operated switch (16), actuated at the same time as the control cams at the stopping places.
Patent DE-2460924-A1 (DE)
Title: Electronic switch with thyristor or similar control - operates via drive transistor from voltage or current monitoring transistor
Inventor: GEFFERT REINHARD ING GRAD
IPC: H03K17/73
Filed: 1974-12-21
Abstract: The electronic switch has one or more loads connected immediately into the output circuit of a semiconductor switch (e.g. transistor, thyristor, triac). The magnitude of the current or voltage in the output circuit is determined by a control circuit consisting of the base-emitter path of a semiconductor component (T2). The output circuit of the semi-conductor component is connected to a control semiconductor (T1) coupled before the output switch (Th). The monitoring component is coupled by its base via a resistor to the main switch.
Patent DE-2500167-A1 (DE)
Title: Early-warning system for diabetic crises in young patients - with electrolyte-sensitive skin probe to detect characteristic cold sweats
Inventor: ROTH JOERN DR MED
IPC: A61B5/00
Filed: 1975-01-03
Abstract: An apparatus for detecting the early symptoms of hypoglycaemic state in young diabetes mellitus patients comprises (i) an electrolyte sensitive probe directly attached to the patient's skin and (ii) a signal transmitter which comes into operation when the probe is in contact with a particular electrolyte cover. The apparatus promptly wakes a patient in whom a hypoglycaemic state is starting, allowing him to control it by oral ingestion of glucose. The onset of a crisis is accompanied by symptoms such as cold sweats, nausea etc. So is easily recognised when the patient is awake, but may remain unnoticed during sleep. By detecting the characteristic cold sweating, the present apparatus alerts the patient in time.
Patent DE-2503273-A1 (DE)
Title: Threshold temp detector for food freezing equipment - initiates control or alarm over typically three ranges
Inventor: KUNERT JUN WERNER
IPC: G01K11/06
Filed: 1975-01-28
Abstract: A simple multiple transducer for detecting typically three temperatures in food freezing equipment, so that an appropriate alarm can be given or control action taken, is presented. The device is a development of the system described in P2455 821.2, and consists of basically a number of separate units, one for each threshold temperature. Each unit consists of a vessel (5) filled with a liquid of the appropriate threshold dew point, and below it a chamber (2) with a sloping floor (3) which contains some alarm or control switching element. When a threshold level is reached, the associated switch is activated. By this means the contents of the freezing equipment can be protected against temperature deterioration.
Patent DE-2508954-A1 (DE)
Title: Vapour extractor hood with variable speed ventilator motor - is triggered by lift-up front panel but operates independently of angle thereof
Inventor: METZGER GERHARD
IPC: F24C15/20
Filed: 1975-03-01
Abstract: The vapour extractor hood comprises a box-type housing (1) with a front panel (2) swivelled up about its upper edge and controls a cam switch mechanism for operating the light and ventilator motor (4). A switch operating rod (6) used for this control is provided with a slide member associated with the switching mechanism (5) so that as the front panel (2) is swivelled forwards, several tripping contacts (7) are actuated in succession and on swivelling the panel (2) back into the closed position the slide member only releases the tripping contacts after traversing the entire swivel range. The switching mechanism for the low and high motor speeds can thereby be actuated in series by the front panel whilst at the same time on moving the panel back the switch mechanism for the high speed can be left switched on until the panel is closed completely.
Patent DE-2510693-A1 (DE)
Title: Sulphonation of polymers esp. butyl rubber - with combination of sulphur trioxide and Lewis base, or acyl sulphate
Inventor: O'FARRELL CHARLES P
IPC: C08F8/36
Filed: 1975-03-12
Abstract: Polymers prepd. by soln. polymsn. are sulphonated by (a) dissolving the monomers in a solvent, (b) polymerising the monomers in the presence of a Friedel-Crafts or Ziegler catalyst to form a reactor effluent contg. polymer, monomers, active catalyst and solvent, and (c) simultaneously sulphonating the polymer and de-activating the catalyst by treating with (I) a combination of (a) sulphur trioxide and (b) a Lewis base, or (II) an acyl sulphate. Gives crosslinked polymers with good physical props.; e.g. vulcanised, rubbers. Simultaneous sulphonation and catalyst de-activation. Degree of sulphonation easily controlled.
Patent DE-2514596-A1 (DE)
Title: Tank for (electro) chemical surface treatment - in which round substrates are conveyed in gaps formed by two rotating threaded spindles
Inventor: ZDARSKY EDUARD
IPC: C25D17/16
Filed: 1975-04-03
Abstract: Process for chemical or electrochemical surface treatment, such as the electroplating of disc-shaped round parts which are transported via a carrier cathode through a treatment bath. The substrates stand on their edge on the carrier and roll as they are conveyed through the bath. In the pref. plant, the carrier(s) consist of a pair of threaded spindles, the substrates being located between the threads on the two spindles which are rotated so the substrate is conveyed through the bath. The cathode is pref. formed by a metal strip wrapped round the root of the thread on the spindles. Used e.g. for the electroplating or other surface treatment of dental mouth inspection mirrors, or other round parts.
Patent DE-2516641-A1 (DE)
Title: Continuous charcoal production - using inclined rotating retort into which air is directed for burning wood gas to carbonize wood
Inventor: SMITH DAVID EUGENE
IPC: C10B1/10
Filed: 1975-04-16
Abstract: Charcoal is produced from wood by continuously introducing wood chips into the higher end of a slightly inclined retort, rotating about its longitudinal axis so that the chips form a bed only partially filling the retort and are constantly tumbled and advanced to the lower end of the retort, heating the chips using an external fuel long enough to initiate the production of combustible wood gas, and introducing air tangentially into a peripheral portion of the retort not occupied by the bed, in a direction opposite to that of rotation of the retort, so that the wood gas is entrained in the circulation, mixed with air, and burned to the extent of the available oxygen before the circulating gases reach the bed, where they carbonize the wood chips to produce charcoal which is removed from the lower end of the retort. High grade charcoal can be produced in a continuous process, with little prodn. of smoke or objectionable fumes; after initiation the process is self-sustaining without using external fuel; large quantities of useful heat are produced.
Patent DE-2522525-A1 (DE)
Title: Load disconnector with arc quenching in vacuum chamber - appropriate for operation in medium voltage range
Inventor: HOEGL VITUS
IPC: F16L27/12
Filed: 1975-05-21
Abstract: The vacuum chamber's (1) permeable continuous current is only a fraction of the disconnector rated current, and its rated breaking current corresponds to the disconnector rated current or rated breaking current. It is in series with a visible contact, and this series circuit (1) is in parallel with a contact designed for the full disconnector rated current. The chamber (1) is accommodated, together with its quickly operating mechanism, in an insulated housing (22). The contacts of the chamber are coupled on one side to the contact element (33) and an electrical connection member (15). The other side is coupled with an operational forked cradle piece.
Patent DE-2522912-A1 (DE)
Title: Lattice and frame structure connecting dowelling plate - made of sheet steel with welded dowel plugs let into upright planking
Inventor: BUDDEMEIER WILHELM
IPC: E04B1/49
Filed: 1975-05-23
Abstract: Steel plates are here used for the connection of lattice and frame structures, in place of the usual lug- type connections. The connecting plates are made of steel, with welded- in dowel plugs, 16-32 mm in diameter. The plates are at least 6mm thick, smaller than the trusses which are to be attached, and let into the planting of the upright. The dowels plugs in them are drilled into the pieces of wood being joined. The trusses are held firm by means of one or more self-cutting threaded screws drilled into the wood. The connection can be carried out mechanically, saving time. The steel components may be hot galvanised.
Patent DE-2523135-A1 (DE)
Title: Refractory coating for metallurgical lances - using alumina mixed with ferric oxide, lithium aluminium silicate, and cobalt oxide
Inventor: CHOWDHURY KSHOUNISH
IPC: C21C5/46
Filed: 1975-05-24
Abstract: Injection lance for undertaking metallurgical operations, where the lance is coated with a refractory mass consisting of refractory materials, fluxes and adhesion agents. Specifically Al2O3 is used as the refractory material, and the coating pref. contains 50-70% Al2O3 and 10-18% Fe2O3 used as a flux, esp. with 2-6% LiAl silicate; and the coating may also contain 2-10% colemanite. The coating may also contain 0-2% of an oxide added as an adhesion agent, 0-8% silica flour, 2-6% glass flour, 0-5% clay, and an addn. of water glass. Used esp. for the treatment of ferrous metal melts, e.g. removal of impurities or decarburization, where solids and gases are blown through the lance. A simple coating with long working life when exposed to molten metal and slag is obtd.
Patent DE-2524739-A1 (DE)
Title: Insect deflector for car bonnet - with double air curtain over windscreen to deflect airstream at steep angle
Inventor: LASSER FRANZ
IPC: B60J1/20
Filed: 1975-06-04
Abstract: The improved insect deflector is mounted at the front edge of the bonnet and has a concave upper face (8) to deflect a first airstream (5) upwards at a steep angle, and with a high velocity. The deflector is hollow and a second airstream (6) is deflected upwards at the back of the deflector at a shallower angle. The double airstream ensures that even heavy insects are effectively deflected, without increasing the drag of the deflector unduly. The first airstream imparts a vertical component to the insect velocity so that the second airstream can add its effect and deflect the insect.
Patent DE-2526210-A1 (DE)
Title: Electrode for cathode ray colour tube with triple gun - has four electrodes welded to strip shaped brackets of interchangeable pairs
Inventor: SCHAAL ARTUR ING GRAD
IPC: H01J29/50
Filed: 1975-06-12
Abstract: The electrodes of a colour cathode ray tube with three electron guns are arranged in line. The system consists of four electrodes (1, 2) which are symmetrically mounted and each having a cylindrical wall surface. The electrodes opposite each other have different diametersand they are held in position by strip shaped brackets (7) welded into the wall of the bracing elements (5) of the glass. All the support brackets of the central electron generating system are of the same design and are interchangeable and similarly the supports of the outer electron generating system. The supports are welded to the electrodes. The welded seams are parallel to the electron axes concerned.
Patent DE-2527496-A1 (DE)
Title: Silencer for piston engines - has chamber, with apertures, surrounding and in connection with exhaust pipe
Inventor: PIENING WERNER DR ING
IPC: F01N1/04
Filed: 1975-06-20
Abstract: The silencer is for exhaust pipes of Diesel engines. The pipe is surrounded by a chamber which is in contact with the pipe via wall apertures, and is sealed to the outside. The chamber and the apertures are dimensioned, so that with the most frequent sound frequency, a wave coming from the engine, which passes through the apertures into the hollow, is reflected, and moves back through the apertures. It contacts another wave coming from the engine with a phase displacement of half a wave length. The gas conduit between motor and apertures contains in the path of the gas flow and sound waves, an obstacle which contains absorbed material in front of a reflective base. The pipe is of length unlike an even multiple of half the wave length of the most frequent sound frequency.
Patent DE-2536162-A1 (DE)
Title: Coordinate diphosphine polymers for catalyst prepn. - by reacting alkaline diphosphine alcoholate and halogenated polymer in two stages
Inventor: TKATCHENKO IGOR
IPC: B01J31/24
Filed: 1975-08-13
Abstract: Coordinate diphosphine polymers useful as catalysts, e.g. in hydroformylation, carbonylation and carboxylation, and oligomerisation and hydrogenation of mono- and diolefines, are prepd. by (a) adding a soln. of (I) an alkaline diphosphine alcoholate to a suspension of (II) a halogenated polymer in (III) a liquid (b) reacting the mixt. to ambient temp. for 2-24 pref. 4-8 hrs., (c) completing the reaction at an elevated temp. up to the reflux temp. for 0.5-6 pref. 1-3 hrs., and (d) reacting the formed coordinate diphosphine polymer with a transition metal cpd. The catalyst is insoluble in reaction mixts., easily recovered from reaction mixts., has long catalytic life. high selectively; wide range of catalysts is obtainable.
Patent DE-2539800-A1 (DE)
Title: Prodn. of gamma globulin solns. from intravenous injection - by treating a normal globulin soln. with e.g. ethyl acetimidate hydrochloride
Inventor: STEPHAN WOLFGANG DR
IPC: A61K39/395
Filed: 1975-09-06
Abstract: Prepn. comprises treating a normal soln. of gamma-globulin with (per g of protein) (A) 0.055g ethyl acetimidate hydrochloride; (B) 0.022g diketene; (C) 0.05g ethyl formimidate hydrochloride or (D) 0.077g propane sultone. Treatment is at 5 degrees C for (A), (B) and (C) and at 37 degrees C for (D), and at pH 9, and after allowing to react for 2 hr. the pH is adjusted to 7-7.5 then the mixt. dialysed and sterile-filtered. The parent patent described the modification of gamma-globulin with other alkylating or acylating agents such as beta-propiolactone. The compsns. have specific complement-fixing activity so cause bacteriolysis in cases of bacterial infections. In cases (A) and (B) reaction is more rapid than with propiolactone so can be carried out under milder conditions; (D) introduces sulphonamide gps. into the protein which themselves protect against infection and in (C) the mol. wt. of the treating agent is so low that only a minimal alteration in the immunological properties of the globulin occurs so tolerance is improved on longer-term administration.
Patent DE-2544463-A1 (DE)
Title: Electrometer for measuring small currents - compensates for larger superimposed constant currents using amplifier with feedback
Inventor: SPENNER KARL
IPC: G01R17/06
Filed: 1975-10-04
Abstract: The electrometer for measuring small currents in the presence of superimposed larger constant currents consists of a current-measuring amplifier with feedback (1). The input to the amplifier is fed with the two currents (i+i). A constant-current generator (2) produces a current equivalent to the larger, constant current which is unwanted. This unwanted current is compensated for by the current from the generator. A control circuit (3) controls the constant-current source in such a way that no further current appears at the amplifier output (1). The small current can then be measured. It is possible with this circuit arrangement, to measure currents in the order of 10-9 to 10-11 to an accuracy of better than 1% in the presence of constant currents of around 10-8 Amps.
Patent DE-2546639-A1 (DE)
Title: Loudness of ringing in telephone terminal - is adjusted by rotatable foot and eccentric post setting bell arm striking distance
Inventor: KLEIN WOLFGANG
IPC: H04M1/02
Filed: 1975-10-16
Abstract: The volume control, for the ringing of a telephone terminal uses a post in the bottom of the terminal acting as a foot and touching the ball assembly inside. The post (17) is attached eccentrically to a rotatable pad (10) that forms one of the terminal feet. The post passes through the base plate and engages in a slot in a lever (34). The lever acts on the bell assembly's striker arm and alters the distance it travels to the bell. By rotating the foot this distance can be altered and the volume varied.
Patent DE-2548441-A1 (DE)
Title: Froth destruction system for fermenters - extracting froth into second vessel containing chemical destruction agents or froth centrifuge
Inventor: LEHMANN HEINRICH
IPC: C12M1/06
Filed: 1975-10-29
Abstract: Froth produced in an aerated fermenter during the cultivation of microorganisms is destroyed by extracting it together with the used air from the fermenter. It is introduced through a frit at the bottom of a second vessel where chemical agents and/or mechanical impact discs destroy the froth. The system avoids the addn. of froth centrifuges at the head of fermenters which obstructs the access for probes and electrodes. The centrifuges are also expensive structures. Froth can now be eliminated readily or converted into re-usable fermenter fluid.
Patent DE-2609278-A1 (DE)
Title: Extruder for coating a conductor with an insulating layer - has multiway valve with bypass mounted between barrel and extruder head
Inventor: SCHNEIDER REINER ING GRAD
IPC: B29C48/74
Filed: 1976-03-04
Abstract: In an extruder for applying a heat-shapable insulating layer onto an electrical conductor, wire or cable core, the insulating material is heated in the extruder barrel and forced by the screw in the direction of the orifice of the extruder head. Between the barrel and the extruder head is a multiway valve to which a line that bypasses the extruder head is connected. Used for the extrusion coating e.g. of electrical wires esp. with foamable polyethylene compsns. Extruder may also be used for coating other types of substrates e.g. films, pipes and other profiles. Waste is substantially reduced (e.g. prodn. of defectively or only partly coated wire). Cellular coatings are consistenly uniform, and the multiway valve enables the stream of polymer melt from barrel to extruder head to be interrupted and discharged via the bypass.
Patent DE-2611214-A1 (DE)
Title: Multipurpose coal mining shield - has vertical shield mounted to pivot on carrier arms curved rearwards to platform sliding on floor
Inventor: SCHNELLE HEINRICH ING GRAD
IPC: E21D19/04
Filed: 1976-03-17
Abstract: The multi purpose mining machine has a vertical shield (10) which can be advanced towards the coal face, mounted on a pivot spindle (11) at the end of carrier arms (13) which curve rearwards to be supported on a platform (23) which slides along the floor. The shield carries hooked members (17) which can be raised and lowered to lift roof supports (7 etc.) ready for fixing. The whole shield tilts about the spindle (11), and has teeth (22) at the bottom for scraping out material towards a conveyor (80) behind it. The shield can incorporate adaptors which can be swivelled at various angles, and used to guide a set of boring bars or cutters.