baber/WOPTO huggingface dataset:
Patent DE-2439328-A1 (DE)
Title: Multiple glazing made from float glass - inspected for optical properties to reduce interference phenomena
Inventor: HEITZER XAVER DR
IPC: E06B3/67
Filed: 1974-08-16
Abstract: In mfg. panes of insulating glass or an insulating glass window, using two or more single panes of glass sepd. by a space, single panes of float-glass with different characteristic surface deformations are combined together. Before cutting the individual panes to size, the float glass is pref. measured w.r.t. its dioptric properties and pairs of glass panes selected in which the ratio, per unit of length, of the number of positive and negative maxima or the refractive powers, is not equal to unity, and is pref. >1.1 or 0.9. In assembling the panes, the characteristic, strip-shaped dioptric defects (float-distortions) are pref. located parallel to each other, alternatively the distortions may be located at 90 degrees to each other. The occurrence of interference phenomena is either reduced or completely prevented.
Patent DE-2441145-A1 (DE)
Title: Packing strips of polypropylene compsn - contg finely divided bituminous coal and prodn by extrusion and longitudinal mono-axial drawing
Inventor: MOORWESSEL DIETER DIPL CHEM DR
IPC: D01F1/10
Filed: 1974-08-28
Abstract: Packing strips are produced from polypropylene compsns. contg. 0.5-8 (1-4) wt. % (based on polypropylene) of a finely divided, uniformly distributed bituminous coal having particle size 5-150 (10-90) mu, by a process involving extrusion of polypropylene compsn. at 170-320 degrees C. to form primary strips, having cross-sectional area 0.5-20 (1-10)mm2 and ratio thickness: width 1:5 to 1:80, (1:10 to 1:40) and drawing longitudinally and monoaxially at surface temp. >60 degrees C. but below crystallite m.pt. of polypropylene component, in ratio 1:4 to 1:12. The polypropylene used has intrinsic viscosity (in decaline at 130 degrees C.) 1-9 dl/g and density (DIN 53 479) 0.8-0.92 g/cc; a proportion of 9 wt.% (at wt. ratio polypropylene: xylene 5:95) is soluble in xylene boiling under normal conditions and then cooled again to room temp.
Patent DE-2443054-A1 (DE)
Title: Pressure sealed contact strips for telecommunication cable fitting - has metal strips embedded in plastic block sprayed with layer of elastic substance
Inventor: FORBERG HORST
IPC: H01R9/16
Filed: 1974-09-09
Abstract: The pressure sealed contact strips are for telephone cable fittings. The metal strips (2) are pressed into a plastic support (1) and sprayed with a solution of an elastic material (3). The liquid elastic material solution contains a volatile substance which is allowed to evaporate after application to the terminal block. The block is made from an epoxy resin. The volatile substance in the spray is a polyisobutyle compound forming about ten percent by weight in a solution of carbon tetrachloride. The strip assembly is sprayed with a layer approximately 3 to 5 mm thick and allowed to set producing a permanent seal for gas or air filled cable.
Patent DE-2443311-A1 (DE)
Title: Holographic pictures inducing additional standard object - designed to reveal angle between directions of illumination and observation
Inventor: SCHOENEBECK GERHARD DIPL ING
IPC: G03H1/00
Filed: 1974-09-10
Abstract: The subject of the picture is to include also an object containin a co-ordinate system. This consists of three squares (2, 3, 4) joined to form a trihedral angle, with a set of concentric circles drawn centrally on each square and a small sphere (5) at the centre of the cube of which the squares form three faces. This object is set up in the pictorial composition so that the illumination to be used casts a shadow of the sphere (5) centrally on one face of the cube (11). In the finished picture the sphere will, in eneral, appear elsewhere. The distance (7) from its apparent position to the centre of the square is shown by concentric circles, serving as co-ordinate curves.
Patent DE-2444941-A1 (DE)
Title: Electrostatic copier with image area cover plates - has fixed and mobile clamps and movable masks on transparent sheet
Inventor: RITZERFELD GERHARD
IPC: G03B27/62
Filed: 1974-09-17
Abstract: The apparatus uses a combination of stationary and moving clamping means, and a transport device for the document or cover elements or their plastic material envelopes. Masks are arranged between the original documents, the cover elements or their plastic material envelopes and the light source or the document support surface. These masks can be moved into position for successive copying and can follow the sequence desired with respect to the original documents or cover elements, by means of a device which moves with respect to the clamping means. This device may for example consist of a strip of transparent sheet. The masks may be displaced perpendicularly to the displacement sense of the moving clamping means or may be displaced parallel to the moving clamping means.
Patent DE-2447170-A1 (DE)
Title: 3-(2-(3-Oxo-propyl)-2-cyclpentenyl)propionaldehyde derivs - prepd by hydroformylating 3-vinyl-2-(3-oxo propyl)-cyclopentenes
Inventor: HOFFMANN WERNER DIPL CHEM DR
IPC: C11B9/00
Filed: 1974-10-03
Abstract: Novel aldehyde derivs. of formula (I) (where R1 is H or 1-4C satd. hydrocarbyl; and R2-5 are H, 1-4C hydrocarbyl, 5-8C cycloalkyl or phenyl; or R1 +R2 and/or R4 + R5 is/are 3-6C alkylene) e.g. 1-(3-oxobutyl-2-methyl-5-(1-methyl-3-oxopropyl)-1-cyclopentene, have characteristic pleasant odours and can be used in perfumery and cosmetics, as well as for improving the odour of industrial prods. (I) are also useful as inters. for pharmacologically active cpds. thus, reductive amination of the carbonyl function(s) gives amines with anti-inflammatory activity. Intramolecular condensn. between the two carbonyl functions gives new substd. hexahydroazulenes useful as perfumes and as inters for anti-inflammatory azulenes (e.g. guaiazulene).
Patent DE-2459388-A1 (DE)
Title: Sylibum flavonoids isolation - by extracting defatted seeds of sylibum species
Inventor: SZILAGYI IMRE DR
IPC: A61K36/28
Filed: 1974-12-16
Abstract: Flavonoids are recovered from the ground seeds of Sylibum spp. by digesting the ground seeds (opt. after) extraction with a fat-solvent, pref. a halogenated hydrocarbon of specific gravity >1.35) with a strongly polar solvent; subsequently exhaustively extracting with acetone methanol or ethylacetate, purifying by an extraction (pref. countercurrent) with a system consisting of ethylacetate a polar solvent and aq. NaCl; subjecting the flavonoids to partition extraction with methanolic CaCl2, soln CaCl2-contg. ethylene glycol and hydrocarbons; precipitating the flavonoids in the form of a crude product by dispersing the extraction water; opt. crystallising the major flavonoids from a small amt of MeOH; opt. recrystallising from acetone/MeOH or methanolic CaCl2/water; and opt. separating flavonoids remaining in the mother liquor by column chromatography or fractional extraction. Silybum marianum is a medicinal plant used against liver disorders and gallstones.
Patent DE-2462130-A1 (DE)
Title: Unloading platform synchronized with press cycle - has horizontal sliding frame and two conveyor belts for component removal
Inventor: BERGMANN EWALD
IPC: B21D45/00
Filed: 1974-10-05
Abstract: A horizontally sliding table is used to unload pressed components from a press. The unloader is linked to the press such that its movements are synchronized with the press working cycle. Between the parallel strips of the unloader, conveyor belts are located. They remove the components from the sliding table and carry them to a position where an overhanging belt with suction or magnetic elements is located. This belt picks the components from the conveyor and stacks them inside a mobile frame. The conveyor belts are a series of narrow belts moving longitudinally and interlocking with each other.
Patent DE-2506364-A1 (DE)
Title: Noise reduction method for radiator impeller - ring fitted close to impeller ends is made from acoustically absorbent material
Inventor: EIKELBERG WOLFGANG DIPL ING
IPC: F01P11/12
Filed: 1975-02-14
Abstract: Installation fitted to the impeller wheel of a blower to reduce the degree of sound caused by the impeller air flow, especially used for a impeller wheel fitted within the area of a radiator of I.C. motors. A cylindrical ring (4) made from acoustically absorbent material is fitted to the wheel circumference (3) at a small radial distance from the impeller ends. The measurements of the ring (4) are arranged to ensure that width measurements (6, 7) when viewed in the direction of air flow (10) on the side lying behind the wheel centre plane (8) is considerably greater than the width measurement of the side lying in front of the wheel centre plane (8).
Patent DE-2520951-A1 (DE)
Title: Combined saucepan lid and stand for stacking pans - has peripheral beaded edge engaging in pan opening under weight from above
IPC: A47J36/06
Filed: 1975-05-10
Abstract: The saucepan lid (1) which has a downwardly protruding peripheral edge which engages into a pan opening (TU) is provided with a contact surface (8) which is adapted to receive the base (BO) of another pan (TO) which can be stood on top so that a multi-compartment saucepan can be built up. Around the edge of this contact surface there is an upwardly protruding bead formed by a cone (5, 7) which prevents the superposed pan from slipping sideways. The centre of the lid is provided with a depression (9) to take the handle (11) so that a flat surface is still formed for supporting the base of the superposed pan. The cooking time for food can thereby be reduced since the weight of the superposed pan causes an increase in the steam pressure in the bottom pan.
Patent DE-2524902-A1 (DE)
Title: Inhaler for powdered or liquid medicaments - with venturi-type housing and multi-dose medicament container
Inventor: ROSSKAMP GUENTER DR
IPC: A61M15/00
Filed: 1975-06-02
Abstract: Inhaler for a powdered or liquid medicament, esp. for treatment of ailments of the respiratory tract e.g. bronchial asthma, comprises a Venturi-tube type housing and a container for the reception of the medicament, the discharge opening from which ends upstream from the diffuser section of the Venturi-shaped housing. Device has no mobing parts and can be adapted for use with very finely ground, e.g. micronised, solids or liquids as well as with normally powdered material.
Patent DE-2525255-A1 (DE)
Title: Junction box with movable clamping elements - uses clamping elements to hold junction box securely in hole in thin wall
Inventor: KAEMPER CARL
IPC: H02G3/12
Filed: 1975-06-06
Abstract: The clamping elements are movable in guides in the box side wall. Each of the clamping elements has a leaf spring which has one end resting on the wall of the box near its edge and the other end rests on a nut in a croresponding guiding element. The nut is screwed onto a bolt passing through the wall of the box. The curvator of the spring part between its ends can be increased by turning the screw (9) so that the box can be clamped in the hole in the wall after its insertion.
Patent DE-2532862-A1 (DE)
Title: Flat rectangular blade for chipping wood, plastic etc. - with reduced wt. without affecting inherent strength at corners
Inventor: HERTEL KARL
IPC: B27L11/00
Filed: 1975-07-23
Abstract: The blade made of e.g. hard metal comprises a flat rectangular plate with at least one longitudinal cutting edge, with almost its whole surface clamped onto a substrate e.g. the side surface of a radial groove in a cutting head. The blade has a t least one opening extending perpendicularly to its large surfaces, for fastening means. Between the opening the side edges and/or between the openings is at least one recess of which the contours are in the shape of a cone section of which at least the major axis is longer than the dia. of the opening for the fastener. The recesses may be circular, or elliptical with the major axis extending parallel to the cutting edges and with a reinforcing rib extending in the direction of the minor axis.
Patent DE-2539386-A1 (DE)
Title: Fail-safe couplers to detect short and open transmission circuits - uses optically coupled transistors to operate local alarm or push-pull arrangement of amplifiers
Inventor: ARNDT KURT ING GRAD
IPC: G08B25/01
Filed: 1975-09-04
Abstract: A number of similar methods are used to couple local fire or ther alarm networks to a central control network using optical coupling devices, and in such a way that any transmission line short or open circuit alerts an alarm of one kind or another. The transmission line (StL) conducts a steady state current of several mA from the local to the central station, via suitable optically coupled transistors (C) so that a line short circuit activates a local alarm (St) whilst an open circuit activates a central alarm (a11, a12). This arrangement applies to a fire alarm and an emergency alarm system. A further arrangement uses a push pull arrangement of amplifiers (T1, T2, T3, T4) at the local end of the transmission line (StL) which supplies a current to the central system (HM) in one or the other direction, using an optically coupled transistor (C), depending on whether or not an alarm situation exists.
Patent DE-2540942-A1 (DE)
Title: Honing device with workpiece holder and coolant feed - has brush-type cleaning device arranged outside workpiece holder
Inventor: GEHRING CHRISTOPH WILLI
IPC: B24B33/10
Filed: 1975-09-13
Abstract: The Honing device has a workpiece holder and a coolant feed where the honing tool sits on a spindle which can be adjsted in the direction of its longitudinal axis. There is a cleaning device (6) arranged outside the workpiece holder (3, 5) in the path of movement of the honing tool (10). The cleaning device (6) is arranged coaxial to the tool spindle axis (4), at a short distance above the workpiece holder (3, 5). The axial extension of the cleaning device is at least equal to the length of the honing stone. The cleaning device has a large number of brushes (9) which are arranged on the cylindrical inner wall (8) of a bush (7) and pass radially to the tool spindle axis (4).
Patent DE-2541728-A1 (DE)
Title: Honeycomb structure cheese container - is two piece, with base and casing inside with spacers for stacking
Inventor: PELLIKAN CHRISTIAN
IPC: A01J25/11
Filed: 1975-09-18
Abstract: A stackable cheese container for cheese making consists of a plastics base (2) and cylindrical casing (3) loosely inserted in it. At the front of the base (2) is a cavity (4) connected to an extension on the outside, into which the casing (3) is fitted. The bottom of each base (2) has several, concentric annular grooves (6) and radial slits (7) which open onto the outer circumference and into the cavity (4) to drain fluid from the container (1). The base pieces (2) are positioned in an enclosed rectangular frame and made of chrome-nickel and steel, and have four other side projections evenly spaced out which are stuck to the frame or to the projection of an adjacent base piece (2). A spacer piece is situated at the four corners of the frame, and are equal in size and shorter than the casings (3).
Patent DE-2545727-A1 (DE)
Title: Nonfoaming suspensions of polymeric fibrils - contg. an anionic protective colloid as dispersion aid
Inventor: SANDER BRUNO DIPL CHEM DR
IPC: C09K23/52
Filed: 1975-10-11
Abstract: Prepn. of non-foaming, aq. suspensions of fibrils made from a polymer other than polyolefins comprises dispersing the fibrils in water in the presence of 0.1-2 wt. % (on dry wt. of the fibrils) of an anionic protective colloid (I) as dispersion aid. (I) is pref. a melamine-HCHO polycondensate; the NH4 salt of a maleic acid - vinyl isobutyl ether copolymer, or the NH4 salt of a styrene and acrylic acid copolymer. The suspensions, opt. mixed with cellulose fibres, are used to make synthetic paper. By using (I) foaming in the papermaking machine is prevented; excellent dispersion is achieved at low (I) concns. and the prods. have high wet strength.
Patent DE-2546340-A1 (DE)
Title: Change-over reed switch - contact and switching blades preloaded prior to glass fusion followed by insertion of third blade
Inventor: KOEHLER HANS
IPC: H01H11/00
Filed: 1975-10-16
Abstract: The proposed method reduces the labour and increases the output of reed switches with simultaneous decrease in the number of rejects, and thus ensuring a reduced cost of manufacture. Maximum contact area between the blades and reproducible results for the preload are attained with ease of handling. After the preload, the two parallel blades are inserted into the glass envelope with fusion carried out when the glass tube is moved towards the melting spot. An adjustable magnetic field controls the spacing between the two blades and the third blade which is inserted into the other tube end and moving the sealed assembly. The jig features feed levers of slide, and whose free ends carrying holding heads for the contact and the switching blades.
Patent DE-2553630-A1 (DE)
Title: Level surface applicator for viscous mediums - uses pivoted proportioning roller to maintain even gap over length of roller
Inventor: KIRCHNER HORST
IPC: B05C1/08
Filed: 1975-11-28
Abstract: The applicator is for viscous mediums, esp. glue, lacquer, etc. to be deposited as a film on level work piece surfaces. It has an application roller running-off the surface to be coated, with an associated proportioning roller, the two defining a proportioning gap. One of the two rollers (10, 12) pref. the proportioning roller (12) may be swivelled about an axis, which is at right angles to its longitudinal axis. Due to this, the width of the proportioning gap (18) is maintained even over its complete length during the proportioning process. One roller may be adjusted in a radial direction for rapid opening of the gap.
Patent DE-2554053-A1 (DE)
Title: Open:end spinning maintenance unit - having a yarn control device to ensure that yarn end is correctly positioned for splicing after maintenance
Inventor: STAHLECKER FRITZ
IPC: B65H54/26
Filed: 1975-12-02
Abstract: Device moves along a line of open-end spinning stations, to provide maintenance and repair of broken yarns at the stations. The mobile maintenance unit is fitted with a unit to control the passage of the spun yarn from the spinner to the winding spool. The system ensures that when the open-end spinner is stopped by the maintenance unit, that the yarn end at the spool is suitably positioned to be reversed into the spinning chamber for a successful splicing.
Patent DE-2554788-A1 (DE)
Title: Polymerisation of lactams to polyamides - in presence of metal oxide activators
Inventor: SERENKOV VASILIJ IJITSCH
IPC: C08G69/16
Filed: 1975-12-05
Abstract: Prepn. of polyamides comprises polymerisation of lactams in presence of metal oxides as activators, in amt. of 0.1-50 (5-20) wt. %. Polymerisation is carried out in air or an inert gaseous medium under vacuum down to 10-5 torr or pressure up to 3 atmos. and may be accelerated by exposure to ionising radiation. Reaction time is reduced compared with the usual hydrolytic process in presence of acid activators, and no breakdown of polymer occurs during processing. The one stage process simplifies mfr. and use of continuous working. High-pressure equipment is unnecessary and mechanical properties are improved, e.g. wear resistance by around 5 times. The polymer is simultaneously filled and coloured by the metal oxide.
Patent DE-2612451-A1 (DE)
Title: Deep mineshaft ventilation system - has fresh air supply turbine connected with exhaust blower by common spindle
Inventor: WEUTHEN PAUL
IPC: E21F3/00
Filed: 1976-03-24
Abstract: The ventilation system for a deep mine includes a turbine (12) in a horizontal shaft (18) at the bottom of a vertical fresh air intake shaft (10) which expands and cools the air for distribution to the mine workings. The collector shafts for used air terminate in another horizontal shaft (19) which houses a blower (13) to force the collected air to a vertical extraction shaft (11). Inside the latter is a set of discharge fans (14) in series. The horizontal shafts (18, 19) are positioned in line so that the turbine (12) and blower (13) can share a common drive shaft to save energy. They can be interconnected electrically by an electro generator and an electro motor.
Patent DE-2615535-A1 (DE)
Title: Camera with automatic exposure control - has filter inserted in imaging path when using higher sensitivity film
Inventor: BEHR KARL-GUENTER ING GRAD
IPC: G03B7/16
Filed: 1976-04-09
Abstract: The camera has an automatic exposure control and can be used with film of at least two different sensitivities. When using film of high sensitivity in the camera a filter for blocking some of the light can be inserted in the imaging path, so that the same exposure time as for the lower sensitivity film can be used. Pref. the cassette containing the high sensitivity film acts on a pin (4) cooperating with a slider (8), for inserting the filter (14) in the imaging path, to compensate for the film sensitivity and also actuating the exposure control circuit.
Patent DE-2620708-A1 (DE)
Title: Spraying a mould surface with a release agent - by pre-positioning the spray nozzle and leaving it in fixed position during spraying
Inventor: RATHJE GERHARD
IPC: B29C33/58
Filed: 1976-05-11
Abstract: A mould release agent is applied to the surface of a mould by spraying, using a spray nozzle which is swivably mounted upon a frame. Before the spraying operation, the nozzle is prepositioned w.r.t. its associated mould and left fixed during the spraying step. Used for facilitating removal of mouldings, esp. polyurethane mouldings, from moulds. Particularly suitable in moulding operations where the moulds (and resulting mouldings) differ from one another within relatively narrow limits e.g. in mfr. of plastics shoe soles of various sizes.
Patent DE-2631089-A1 (DE)
Title: Molybdenum recovery from spent catalyst - by impregnating with caustic soda, calcining the impregnated catalyst and transferring to water to form molybdate
Inventor: KAUFMANN LOTHAR DR
IPC: C01G39/00
Filed: 1976-07-10
Abstract: The recovery of Mo in the form of a molybdate or molybdic acid from spent catalysts contg. Mo (VI) oxide on an Al carrier impregnating the catalyst with an alkali metal hydroxide soln., in which a mole ratio of Mo: alkali metal hydroxide of 1:1.8 to 1:3 is maintained, calcining the impregnated catalyst at a temp. over 800 degrees C for a period sufficient to convert the Mo fraction to alkali metal molybdate without the formation of appreciable amts. of alkali metal aluminate, transferring the calcined product without precooling into water, which is thereby heated to b.pt., and winning in known manner C molybdate or molybdic acid from the alkali metal molybdate soln. Method gives a higher yield in Mo and does not involve large amts. of Al sludge compared with the use of the alkaline letching technique. Used for regenerating spent catalysts used for desulphurisation in refining oil.
Patent DE-2632333-A1 (DE)
Title: Printing unit transferring embossed characters onto form set - applies print to top sheet and then applies pressed to transfer image to other sheets
Inventor: GLAESER THOMAS DIPL KFM
IPC: B41L47/44
Filed: 1976-07-17
Abstract: A printing unit is for transferring the image of embossed characters from, for example a card (42) to a form set (10). It first applies a print image to the top sheet of the set and then has pressure applied to the embossed card in order to transfer the image to the other, lower sheets in the set. In the first printing stage an ink carrier (54) is interposed between the card and the set. In the second stage when the image is to be transferred to the other sheets in the set the data card is displaced relative to the set and ink carrier. The necessary pressure is applied by a roller system (50) and is variable. The support surface for the form set has two sections, one (18) is fixed while the other (20) is spring-loaded from underneath.