baber/WOPTO huggingface dataset:
Patent DE-2425292-A1 (DE)
Title: 1-Alkyl-2-hydroxymethyl-5-nitro-imidazoles prepn. - by reacting 1-alkyl-5-nitroimidazoles with formaldehyde and secondary amines
Inventor: WINKELMANN ERHARDT DR
IPC: C07D233/94
Filed: 1974-05-24
Abstract: 1-Alkyl-2-hydroxymethyl-5-nitroimidazoles of formula (where R1 is methyl, ethyl or 2-hydroxyethyl), e.g. 1-methyl-2-hydroxymethyl-5-nitroimidazole, are prepd. by reacting a 1-alkyl-5-nitroimidazole of formula (II) with either (a) formaldehyde, paraformaldehyde, a functional formaldehyde deriv. or a formaldehyde-forming agent in the presence of a secondary amine of formula (III) (where R2 and R3 are 1-6C alkyl, cyclopentyl, cyclohexyl, benzyl or phenyl, or are linked so as to form a pyrrolidine, piperidine, morpholine, piperazine, imidazolidine or imidazole ring) at elevated temp., or (b) an N-hydroxymethylamine of formula (IV) at elevated temp. (I) are inters. for pharmaceuticals. The new process avoids the disadvantages of the process known from DT 1470102 (working under pressure in an autoclave; use of the expensive and hazardous solvent dimethyl sulphoxide). (I) are obtd. in very good yields.
Patent DE-2428599-A1 (DE)
Title: Ceiling or wall plastering or finishing appliance - with alignment -bar- holding horizontal lugs held by carriers flush with bars
Inventor: BLYSZCZ PETER
IPC: E04F21/04
Filed: 1974-06-14
Abstract: The object is to eliminate hindrances to the free movement of the draw-blade, which removes superfluous mortar or plaster, and which is attached to two alignment bars set at an interval on the wall or ceiling surface finishing mechanism. Horizontal lugs are used as holder device for the alignment bars, these in turn being held by carrier devices which lie flush with the alignment bars on the surface adjacent to the guideway. For ceilings the top end of the telescopic carrier support can be bent horizontally, ending in a lug for flush insertion of the bar with a hole. For walls a hook can be used, with a lateral lug on which the bar can be hung flush by a hole. The bars may have holes at both ends for selective placing of the connecting lugs.
Patent DE-2437479-A1 (DE)
Title: Bicycle pedal with rear reflectors - has reflectors clipped into pedal from inside and held with plastic clips
Inventor: KONZORR HUBERT
IPC: B62M3/12
Filed: 1974-08-03
Abstract: The flanges (11, 12) of the pedal are provided with rectangular cut-outs with raised rims. The rectangular reflectors (20) have profiled edges which fit into the cut-outs from the inside of the pedal. The rear faces of the reflectors have moulded grooves which are clipped into special plastic retainers. These take the form of two half shells (24, 26) which are clipped together to form rear supports for the reflectors. The half shells have profiled central sections which clip around the central shaft (15) of the pedal. The fitting does not require any slots or similar attachments on the pedal faces nor any metal tagged retainer for the reflector.
Patent DE-2439202-A1 (DE)
Title: Alkaline etching solution for aluminium - contains a complex-forming substance to give improved stability
Inventor: LAESER LORENZ
IPC: C23F1/36
Filed: 1974-08-16
Abstract: Weak to strong alkaline etching solns. for Al and Al alloys, which contain caustic soda and/or caustic potash, and/or alkali salts of phosphoric acid, carbon dioxide, nitric acid, hydrochloric acid, and if required a wetting agent, are given improved stability by addn. of polyhydroxycarboxylate, in amts. of 0.1-100 g./l., pref. 1-40 g./l. The presence of the complex-forming substance polyhydroxycarboxylate controls the Al content of the etching soln., excess Al in soln. being pptd. in the form of a salt and gives a longer working life. Used for producing a matt finish on Al and Al alloys surfaces, and for chemical milling.
Patent DE-2442650-A1 (DE)
Title: Flat display panel using direct current charge - with inter linear scanning, has perforations in cathodes divided into two groups in each case linked by slots
Inventor: FUKUSHIMA MASAKAZU
IPC: H01J17/49
Filed: 1974-09-06
Abstract: The flat display panel has a number of anodes crossing a number of cathodes with perforations at the points of intersection. There are a number of additional anodes crossing the cathodes and facilitating the discharges. The perforations in the cathodes are divided into two groups. The first group has at least two perforations linked by slots at the points of intersection between the cathodes and the additional anodes. The second group has at least two perforations linked by slots at different points of intersections between additional anodes and cathodes. This facilitates the main discharges to be initiated in the perforations by alternate discharges in the first and second sets of slots.
Patent DE-2455129-A1 (DE)
Title: Stabilised suspension for construction vehicle - has extra hydraulic volume to accommodate large suspension deflections
IPC: B60G17/033
Filed: 1974-11-21
Abstract: The construction vehicle has a pneumatic suspension control which operates on a main control piston. This acts on twin hydraulic circuits to control both sides of the axle suspension. In order to be able to vent the extra hydraulic fluit, pumped into the one circuit or the other when the vehicle is driven along an incline, the control piston has a floating piston behind it. The space between the pistons can be extended to accommodate any extra fluid. This enables the extra fluid to be vented without bypassing the non return valves which protect the two circuits.
Patent DE-2500253-A1 (DE)
Title: Stop for ball non return valve - has circlip within return spring to limit movement away from seat
Inventor: JANSSEN-WEETS PETER
IPC: F16K15/04
Filed: 1975-01-04
Abstract: The spherical closure seal (2) is only held by the free end of the sealing spring (5) which in turn is only held at its other end by a back support comprising a circlip (7). The sealing spring is constructed as a pressure-dependent flow throttle in that is is compressible to a degree which is only self-limited. The stroke of the sealing spring is limited by a stop surface formed by a displaced inner winding of the spring itself. The valve design is such therefore that the closure seal is held in place merely by liquid pressure and the sealing spring and can move freely when in operation.
Patent DE-2513631-A1 (DE)
Title: Dirt deflector for box shaped vehicle - has shaped skirt in front of front wheels to prevent lateral deflection of spray
Inventor: ROHLF ERIKA DIPL ING
IPC: B62D35/00
Filed: 1975-03-27
Abstract: The front wheels of the box shaped are fitted with a special skirt (10) set in front of the wheels. This skirt has a curved profile of such a shape that when the vehicle moves there is no pressure gradient from the wheels to the sides of the vehicle. Such a pressure gradient gives rise to dirt being whirled over the side windows of the vehicle. The skirt forms part of a spoiler strip under the front of the vehicle, with the added advantage that a pressure build-up in front of the spoiler is eliminated.
Patent DE-2516154-A1 (DE)
Title: Impulse generator with control spindle - has internal axial chambers and radial connection apertures
IPC: F15B21/12
Filed: 1975-04-14
Abstract: The impulse generator has a housing, with a rotary drivn control spindle in a control chamber. Conduits open into the chamber, for contact with the source of a pressurised flow medium. There is a medium return conduit and an impulse receiver. The control spindle has channels to connect the conduits to two chambers, depending upon the spindle position. One chamber is connected to the conduit leading to the medium source, while the other chamber is connected to the medium return. Each chamber is connected to one of two channels, leading to the impulse receiver. The chambers (22, 24) are positioned axially to each other in the control spindle (20). The spindle exterior has apertures (48, 50, 52, 54, 56, 58) positioned radially to connect the chambers to the conduits (40, 42).
Patent DE-2517711-A1 (DE)
Title: Double coating for printing plate - in which the highly light sensitive top layer acts as mask for photo polymeric under layer
Inventor: RUEDIGER JOHANNES
IPC: G03F7/095
Filed: 1975-04-22
Abstract: Printing plate for flat bed and relief printing plates, in which, in addition to and on top of the conventional coating sensitive to light in the long wave UV- and short wave bands of the visible spectrum, e.g. those layers sensitised with chromate, diazo or photopolymer, etc. a further layer of maximum light sensitivity, e.g. a silver halide coating, is applied which after exposure and development as a contrary mask for the copying layer lying beneath it, absorbs copying-intensive radiation on its covered zones and only allows such radiation to pass in its uncovered parts. Advantageously >=2 such light-sensitive layers may be provided. The printing plates can be produced by direct exposure in a camera- or for very large plates in special equipment- the printing quality of the plates and the stability of the printed copies meet the high standards required. For copying machines a printing plate becomes available with exposure times which are a fraction of those normally required.
Patent DE-2517805-A1 (DE)
Title: Crematorium sepulchre composed of urn-preserving elements - as assembled structural entity incorporating urn-preserving hollow spaces
Inventor: ORTUTAY TAMAS
IPC: E04H13/00
Filed: 1975-04-22
Abstract: A new columbarium or urn sanctuary, is designed in a crematorium or part of a cemetery, to be continualy enlarged from un-preserving elements, which determine the basic pattern of the urn chamber, the whole being planned as an aesthetically proper and harmonious monument. One or more building entities are assembled from elements, with hollow spaces for urn preservation in at least one part of these. The elements pref. have interlocking protrusions and recesses in their exterior surfaces, and holes passing through them to accommodate connecting elements. The entity may be in the form of an open wall or block, with the elements which contain the urn preservation chambers accessible from outside. The elements may have curved surfaces, for assembly in the shape of an arched or vaulted structure; or flat-sided elements may be assembled into a pyramid structure.
Patent DE-2518390-A1 (DE)
Title: Small hand polishing machine - has polishing roll mounted parallel to drive motor
Inventor: GIESEN WALTER
IPC: B24B23/02
Filed: 1975-04-25
Abstract: The hand-held polishing machine is used for finishing the surfaces of parts made from various materials. The polishing roller is made from flexible materials such as layers of linen etc. The roller is mounted in a frame next to the drive motor with its axis parallel to the centreline of the drive motor and is driven by a belt. The advantage of the arrangement is that the whole width of the polishing roller can be applied to the work piece. The roller can also be more easily guided by hand.
Patent DE-2524981-A1 (DE)
Title: Expanded glass prodn - by mixing powdered glass, volcanic vitreous material, foaming agent and water
Inventor: WUESTEFELD CLAUS
IPC: C03C11/00
Filed: 1975-06-05
Abstract: An expanded glass is produced by mixing powders glass, volcanic vitreous material and/or other glass-contg. materials, a foaming agent and water, and, opt. after moulding, drying at 20-600 degrees C followed by heating at 800-1000 degrees C so that it expands. The binders in the mixt. are oxy-acid solns. of metalloids and of P or their anhydrides and/or solns. of salts of these oxy-acids with basic oxides or hydroxides of metalloids or transition metals with a variable degree of oxidation which, during drying form gels the water content of which acts as a foaming agent. Expanded glass which has closed porosity, the pores being small in size, can produced.
Patent DE-2531773-A1 (DE)
Title: Pneumatic spinning with nozzles in tandem - having guide screw retaining start of twisted yarn in spinning chamber
Inventor: GOETZFRIED KONRAD
IPC: D01H1/115
Filed: 1975-07-16
Abstract: The parent patent discloses the false-twist spinning of a thread of staple fibres in two or more consecutive twisting zones, with the threads passing through spirally running components of the streams of compressed air, which accentuate the spreading of the filaments and enable a yarn of higher tensile strength to be spun. In this addn., after passing a twist brake, the staple fibres are spread and twisted to different degrees in twisting zones (I, II) by separate contrary-running streams of compressed air spiralling downwards. To apply twist to the yarn starting to spin, behind the twist brake, in twisting zone (I), a counter-twisting of the thread, spiralling upwards from twisting zone (II) against the direction of motion of the thread is used. A denser fibrous mantle around the false twisted core of the yarn, makes it possible, by means of a greater difference in twist, to increase the tensile strength of the yarn.
Patent DE-2533415-A1 (DE)
Title: Bulk goods container for material to be scattered on icy roads etc. - is associated with conveyor or scatterer and contains insert tube normal to outlet
Inventor: BOSCHUNG MARCEL
IPC: B65D88/64
Filed: 1975-07-25
Abstract: The container is for bulk goods such as salt, sand, slag or grit for use on a trailer or similar vehicle used for spreading on roads or pavements etc. and has a part which reduces in size downwards fitted with an outlet opening. On the inside of that part there is at least one pipe shaped inset (6) fitted at a distance from the container walls surrounding it, the longitudinal axis of which extends about vertically to the plane of the outlet opening (4). The inset is circular in cross section or may be multi cornered as an alternative, and widens conically downwards. The upper edge of the inset is positioned at a distance from the upper edge of the container as is the lower edge of the inset from the plane of the outlet opening.
Patent DE-2543688-A1 (DE)
Title: Mounting for linear propulsion motor - is slung from vehicle between fore and aft bogeys with lateral adjustment curves
Inventor: FRIEDRICH REINHARD DIPL ING
IPC: B60L13/03
Filed: 1975-09-30
Abstract: The linear propulsion vehicle (1) is fitted with front and rear swivel bogeys (4) which guide the vehicle along lateral guide rails by magnetic guidance. The linear motor has its coils (7) suspended from the sprung vehicle on transverse rails (9) to straddle the centre drive rail (8). The coils are linked to the bogeys by telescopic struts (10). As the vehicle drives through curves the coils are displaced accordingly to provide optimum traction. The main weight of the drive unit is thus supported on the sprung chassis for optimum damping. On cornering the coils are displaced to generate a lateral thrust component for a stable drive.
Patent DE-2543819-A1 (DE)
Title: Knitting machine pattern selector sinker - with butt having configuration which keeps the bending moment of the edge of butt actuator constant
Inventor: POOCZA ANTAL DIPL ING
IPC: D04B15/74
Filed: 1975-10-01
Abstract: Pattern sinker for weft or warp knitting machines has a butt acted upon by a cam follower moving along a circular path and the configuration of the surface of the butt cooperating with the edge of the follower corresponds to a curve derived from mathematical equations given inthe specification. Ede of cam follower is subjected to constant bending moment press independently of its position along the circulat path.
Patent DE-2549807-A1 (DE)
Title: Remote controlled positioning of indexing tables - has sliders which engage table or clamping ring on forward and reverse movement
Inventor: BUCHMEIER HEINZ
IPC: B23Q16/10
Filed: 1975-11-06
Abstract: The remote controlled indexing table, particular a turret head for machine tools, has sliding members in the drive unit. Relative movement between drive unit and drive ring moves the ends of the sliding members into slots of the revolving table, so connecting the drive unit firmly to the revolving table. It releases simultaneously a clamping ring to allow rotation of the table. Movement of the drive unit in the opposite direction reverses the sliding member, so releasing the table and locking the clamping ring. The electrical positioning signal is effected through a contact arm and a free-wheel arrangement direction from the drive unit.
Patent DE-2554346-A1 (DE)
Title: Driving unit for electric tools - has cylindrical motor casing which is held by hand and guided by it
Inventor: BERGLER OTTO
IPC: H01H9/06
Filed: 1975-12-03
Abstract: A hand operated switch for the electric tool switches the motor on and off. The switch (8) is provided in the motor casing (1) end opposite to the tool, and operated by a bent lever (15) resting on a grip (13) outside the motor casing. It enters in the casing through a slot (13) directly behind the stator lamination pack. The bent lever has a bearing bolt (14) with an axis at right angles to that of the axis of the motor of the tool. The switch has a cylindrical section plunger (18) to operate the unit; electrical connections are made by the bared leads (19) of the entry cable (20) passing through a gland at the end.
Patent DE-2556525-A1 (DE)
Title: Dihydroxy-acetone esters prodn. - by reacting (2)-methylene-(1,3)-propanediol esters with ozone and reducing the prod.
Inventor: HIMMELE WALTER DIPL CHEM DR
IPC: C07C45/67
Filed: 1975-12-16
Abstract: In prepn. of 1,3-dihydroxyacetone esters of formula R1O-ch2-CO-CH2-OR2 (I), 2-methlene-1,3-propanediol esters R1O-CH2-C(=CH2)-CH2-O-COR2 (II) are reacted with ozone and the reaction mixt. formed is reacted with a reducing agent. In formulae (I) and (II), R1 is H or the residue -CO-R3; and R2 and R3 are each H or a (cyclo)aliphatic, araliphatic or aromatic residue. (I) and the dihydroxyacetone into which they can be converted by their basic hydrolysis are useful as intermediates for dyes, pharmaceuticals, plant-protection agents and cosmetics. Dihydroxyacetone is useful as a mild reducing agent for vat dyeing and as an artificial skin-browning agent in cosmetics. The process is simpler and more economical than known chemical methods for the prodn. of dihydroxyacetone (esters).
Patent DE-2600966-A1 (DE)
Title: Dioxobenzopyrazine or benzimidazoldione dye bleach accelerator - dissolving readily in bath for photographic silver dye bleach process
Inventor: NAKAMURA TAKASHI
IPC: B01J31/00
Filed: 1976-01-13
Abstract: The dye bleach accelerator for the photographic Ag dye bleach process contains cpds. with a condensn. structure, consisting of a 5- or 6-membered ring 2 N atoms and a p-benzoquinone ring, selected from cpds. with a 5, 8-dioxo-benzopyrazine structure and cpds. with a benzimidazol-4,7-dione or benzimidazolium-4, 7-dione structure. The accelerator dissolves readily in a dye bleach soln., penetrates the emulsions of a multi-layered material rapidly and has a uniform effect.
Patent DE-2606329-A1 (DE)
Title: Vertical tubular solar radiation absorber - is encased in double wall tube with vacuum between walls
Inventor: RENNEBECK KLAUS
IPC: F24S10/40
Filed: 1976-02-18
Abstract: A glass vacuum tube has two concentric cylindrical walls. Each wall is closed at one end to form a cylinder open at one end only and the concentric open ends are jointed together to form a single vessel which has a hollow annular space between two concentric walls. This space is evacuated and sealed. The tube so formed is stored vertically on a revolving base. An absorber tube with flow and return connectors for a liq to be heated is attached to the base within the central space of the vacuum tube. The vacuum tube permits radiation to pass through it onto the absorber tube but stops heat transmission outwards. One half of the inside of the vacuum tube is silvered.
Patent DE-2607579-A1 (DE)
Title: Hollow ball on string for ball games - consists of normal tennis ball which has peg inserted through hole to anchor string
Inventor: MESSING MANFRED
IPC: A63B43/02
Filed: 1976-02-25
Abstract: Hollow ball is connected to a string and consists of a normal tennis ball (10) into which is cut a small circular hole (11). The string (12) is held in the ball by means of a peg (14). The string (12) has its end threaded through a hole (15) in the peg (14) after which it is knotted. The knot (16) is then passed through the hole (11) in the ball (10). The peg (13) is pushed by its end through the hole (11). When the whole peg is inside the ball the string is pulled out of the ball until it is held by the knot. This method produces a ball on a string which does not require any specially made ball or have the string moulded into the ball, which means it is easier and cheaper to produce.
Patent DE-2609854-A1 (DE)
Title: Injection moulded articles - are produced by introducing the cross linking agent between injection orifice and mould to dispense with heating melt at mould
Inventor: MENGES GEORG PROF DR ING
IPC: B29C45/18
Filed: 1976-03-10
Abstract: Injection moulded articles are produced in that the cross-linking agent for the plastics melt is first introduced between the injection orifice and the mould inlet. Heating of plastics mass to reaction temp. at the mould inlet is prevented. Premature cross-linking of mass is also prevented. Pref. the machine is provided with a continuously operating dynamic mixing appts. in which the injection moulding mass is produced by mixing the plastics melt with the cross-linking agent and feeing it into the mould.
Patent DE-2615795-A1 (DE)
Title: Noise and vibration isolator for floors - has slabs of resilient material with holes for compression springs
Inventor: MICKO MANFRED
IPC: F16F3/10
Filed: 1976-04-10
Abstract: The noise and vibration isolator for floors consists of slabs of resilient material (1) which are laid on the concrete foundation (2) and then covered with a layer of concrete (3). The slab of isolating material (1) is provided with a number of circular holes (4) which contain spring assemblies (5). These spring assemblies contain a number of metal compression springs fitted between end caps lying flush with the surfaces of the slabs (1). The noise absorbing characteristics of the isolator can be varied by varying the number of spring assemblies (5) per unit area. The use of these spring assemblies also increases the load bearing capacity of the slabs (1).
Patent DE-2623612-A1 (DE)
Title: Capacitive IC engine ignition - has inductive element with nonlinear characteristic in discharge circuit of storage capacitor
Inventor: HUETTL INGO
IPC: F02P3/09
Filed: 1976-05-26
Abstract: The high voltage capacitive ignition circuit provides a long duration spark. It ensures reliable ignition under all operating conditions. An inductive component with non-linear characteristics, concerning the magnetic field strength and the magnetic inductivity is incorporated in the discharge circuit of the storage capacitor. Preferably the storage capacitor is isolated from the ignition circuit, when the spark is stricken. The storage capacitor may be short circuited to bring about its discharge under such conditions. The ignition circuit design results in reduced fuel consumption and exhaust pollution.
Patent DE-2623832-A1 (DE)
Title: Stackable tubular sleeve packing - accommodates row of boxes each containing one item with peripheral perforations at joints
Inventor: EBERT HANS-JOACHIM
IPC: B65D75/62
Filed: 1976-05-28
Abstract: The stackable packing comprises a tubular sleeve of rectangular cross-section, and a box, open at one side, sliding into the sleeve and accommodating the item. The box (2) is of a size such as to take one item (3), while the sleeve (1) accommodates several boxes in a row. It has perforations (4, 5) running in the peripheral direction at the levels of the adjacent box sidewalls, so that it can be broken off at this point. The perforation can extend round the three sides, while along the fourth, preferably the top, a continuous cut line is formed. There can be a window in the top of the sleeve, level with each box, formed by transparent sheet material.