baber/WOPTO huggingface dataset:
Patent DE-2711010-A1 (DE)
Title: Hydroxy-2-oxo-alkyl-phosphonic acid ester(s) prodn. - by reacting lactone cpds. with di:alkyl alkyl-phosphonate alkali salts, useful as prostaglandin intermediates
Inventor: LIEB FOLKER DR
IPC: C07F9/40
Filed: 1977-03-14
Abstract: In the prodn. of hydroxy-2-oxo-alkylphosphonic acid dialkyl esters of formula (I), a lactone of formula (II) is reacted with an alkali salt of formula (III) in an inert solvent at -95 to 0 degrees C: In the formulae R1 is unbranched alkyl; R2-R7 are H or opt. substd. alkyl; n = 0,1, 2 or 3; M is alkali metal. (I) are intermediates for pharmaceuticals, esp. prostaglandins (cf. DT 2505519). Starting materials (II) are readily obtainable. The products can be purified by distillation of their trimethylsilyl ethers, which is simpler than chromatography of tetrahydropyranyl ethers previously necessary. Specific cpds. (I) include 5-hydroxy-2-oxopentylphosphonic acid dimethyl ester. In an example, this is prepd. by reacting the Li salt of dimethyl methylphosphonate with gamma-butyrolactone at -70 to -78 degrees C in THF. The product is isolated in 80% yield as its trimethylsilyl ether.
Patent DE-2718803-A1 (DE)
Title: Insulating strip for double glazed roofs - which attaches to the outer face and forms channel across the cavity
Inventor: GODTS ROLAND
IPC: A01G9/14
Filed: 1977-04-27
Abstract: The insulating strip is for use on greenhouse roofs, skylights, etc. which comprises elements with double walls, esp. double-glazed elements, supported by metal members and arranged end to end in the direction of the slope. One part of the strip is attached to the ends of the outside wall and the other is inserted between the two walls forming a channel extending across the slope from one side edge to the other of the double-wall element.
Patent DE-2718811-A1 (DE)
Title: Thin shell piston for IC engine - has deflector plate under piston top to prevent oil splashing from sump
Inventor: KEIDERLING GEORG
IPC: F02B75/04
Filed: 1977-04-28
Abstract: The piston of a reciprocating internal combustion engine has a thin sheet top (a) with a skirt below it containing grooves for the piston rings. It is attached to a piston rod (d) by a gudgeon pin (c). A deflector plate (b) is fitted inside the skirt between the gudgeon pin and the top plate (a) of the piston. The deflector plate prevents oil from the sump and connecting rod from splashing on the underside of the piston plate (a). This prevents cooling of the piston plate and also heating of the oil. It thus enables the piston to operate at a higher which increases the overall efficiency of the engine.
Patent DE-2722649-A1 (DE)
Title: Plastic foil for veneered construction - cut to size continuously before adhesive application by circular blades
IPC: B29C63/02
Filed: 1977-05-18
Abstract: The web of a plastic foil which is to be coated with an adhesive and to form a lining on a workpiece is chosen to be slightly wider than required. Circular cutter blades trim the edges of the web before the adhesive is applied. This saves the manual trimming work which is normally needed to remove excess foil off the line workpiece.
Patent DE-2725562-A1 (DE)
Title: Bottle washing machine detergent life increasing process - monitors flow rate in separator circuit for hourly bath replenishment
Inventor: BAUM ULRICH
IPC: B08B3/14
Filed: 1977-06-07
Abstract: The process increases the useful life of detergent used in cleaning, and particularly in bottle-washing machines, where the items handled pass through a high-temperature bath containing the detergent. While flowing continuously through separators, the detergent is freed of labels, dirt and foreign bodies. The rate of flow of the detergent in the separator circuit corresponds to an hourly replenishment of the maximum theoretical quantity of it in the bath. The concentration of the purified fraction of detergent is continuously measured before return to the bath so as to regulate detergent addition tot he latter. Liquid level is maintained by delivery into the bath, controlled by measuring its level.
Patent DE-2726749-A1 (DE)
Title: Catalytic tri:keto-hexa:hydro-triazine prodn. - from isocyanate using epoxide and tert. amine catalysts, intermediates for coating compsns.
Inventor: GRAS RAINER DIPL CHEM DR
IPC: C07D251/34
Filed: 1977-06-14
Abstract: Prodn. of (cyclo)aliphatic substd. 2,4,6-triketohexahydrotriazines (I) comprises catalytic trimerisation of corresp. isocyanates (II) at 80-200 degrees, esp. 120-180 degrees C until conversion is 50%, then recovering (I) conventionally. Reaction is carried out in presence of 0.1-5 wt.% on (II) of a catalyst system contg. epoxides (III) and tert. amines of formula R1R2R3N (N) at 1-6 : 1 mole ratio. In the formula each R is independently H, (cyclo)alkyl, aralkyl or aryl, opt. substd. by halo or OH. R1 are each as R, or (cyclo)alkyl, aryl or aralkyl contg. >=1 epoxy gp. 2R, 2R1 or R + R1 can also form a cycloaliphatic ring. R1 is 1-2C alkyl. R2 and R3 are each (cyclo)alkyl or aryl opt. substd. by aryl or PH, or are joined together by O, S or NR2 bridges. Pref. unreacted (II) is recovered by thin-film distn. and recycled. (I) are intermediates for coating compsns. The catalyst is easily removed, for reuse, during the final distn. Yields of (I) are practically quantitative and prods. are free of monomer and almost free of higher adducts.
Patent DE-2726972-A1 (DE)
Title: Detection of hidden cable etc. esp. detonator lines - by detecting pulses in oscillator voltage occurring at multiples of modulation frequency
Inventor: LUZ HANS DIPL ING
IPC: F41H11/12
Filed: 1977-06-15
Abstract: Hidden bodies, esp. lines connected to explosive charges and contacts for the charge ignition, which are capable of sustaining a vibration are deflected. An oscillator builds up an electromagnetic field whose frequency is periodically modulated. Areas to be searched are consecutively coupled with the field and the oscillating circuit is monitored for loss of energy at one or several frequencies. Pulses generated by the energy loss are superposed on the oscillator voltage and are used to indicate presence of a body. The pulses are used for signalling only when they appear at least once or several times at the exact spacing corresponding to the fundamental period of the modulation frequency.
Patent DE-2732888-A1 (DE)
Title: Manual piston pump for atomiser - has spring loaded tubular valve with inlet in hollow piston of cylinder with outlet valve seat
Inventor: PERSCH ALOIS
IPC: F04B9/14
Filed: 1977-07-21
Abstract: The manually operated piston pump partic. for an atomiser, comprises a closable inlet opening (49), an outlet valve (23) whose closure dome (29) slides in the hollow (25) pump piston (7), and a spring (31) which returns the piston and closes the valve. The closure dome has a tubular portion (27) extending into the hollow piston, the tube wall containing the inlet (49), which, in the rest position, connects with the pump chamber (55) and is located just above the seal (45) between tube (27) and piston (7). The OD of the tube (27) is >= the dia. of the valve seat (23) which forms the outlet opening of the pump cylinder (13).
Patent DE-2734264-A1 (DE)
Title: Positioning device for motor vehicle seats - has control circuits whose actual and required values are preset by electronic counters and logic units
Inventor: FLEISCHER HELMUT ING GRAD
IPC: G05B19/35
Filed: 1977-07-29
Abstract: The motor vehicle seat positioner incorporates switching elements by the operation of which the positioning device is moved to selectable positions. A control circuit is allocated to at least one control device. The control circuit actual value is preset by mechanical-electrical transducers connected to the operating devices while their required value is preset by at least two electrical storage devices. These can be connected to the control circuit through the allocated positioning switches. The switches are in circuit with a memory unit and a timer.
Patent DE-2737206-A1 (DE)
Title: Automatic dipping control for rear view driving mirror - operates with photocell and relay and with given threshold illumination levels
Inventor: BLASER KURT
IPC: B60R1/08
Filed: 1977-08-18
Abstract: The interior driving mirror is hinged about its top edge to swing upwards into a position where following vehicles do not dazzle the driver. A light sensing circuit incorporating a photo diode (21) and a control solenoid (11) operate when the light intensity from following vehicles exceeds a set value, and resets the mirror when the light intensity falls below that level again. A time delay is built into the circuit so that short transients do not effect the mirror setting. The driver does not have to manually adjust the mirror and thus concentrate entirely on his driving.
Patent DE-2739336-A1 (DE)
Title: Flame cutting machine with photoelectric scanning head - contg. lamps for uniform illumination of drawing being scanned
Inventor: BOJE JUERGEN
IPC: B23Q35/40
Filed: 1977-09-01
Abstract: The head(a) scans a line on a drawing or the edge of a template, and includes a lamp ring(b) contg. several inclined holes(c) with longitudinal axes(d) which intersect at a point(e) on the axis of lamp ring(b). A lens tip lamp(f) is inserted in each hole(c) from outside ring(b). Holes(c) are pref. counterbored, the lamps(f) possessing a corresp. shoulder on their external dia. A printed circuit board is pref. used to supply electricity to lamps(f) so the latter are always fixed in the same position w.r.t. their filaments, i.e. for uniform illumination of the drawing being scanned. A prescribed spot of light can be projected onto the drawing; and the lamps are easily replaced if broken.
Patent DE-2742456-A1 (DE)
Title: Water supply vent valve which prevents sucking back - has seat above closure venting upwards water flow to prevent pressure drop
IPC: E03C1/10
Filed: 1977-09-21
Abstract: The pipe system venting valve is used in water pipes with upwards flow and prevents sucking back of dirty water. The venting valve has positive response to pressure and has stable characteristics. The valve seat is arranged above the valve closing element. The venting channel is closed against the flow channel within the valve assembly when the valve is closed. Alternatively a weak spring may be used to support the valve closing element. The latter has sealing ring (6) which enters into a depressed seat.
Patent DE-2745006-A1 (DE)
Title: Di:phenyl ether derivs. with halo- and nitro or cyano substits. - have defoliant, desiccant, herbicidal, insecticide and acaricide activity
Inventor: DICKORE KARLFRIED DR
IPC: C07C255/53
Filed: 1977-10-06
Abstract: Diphenyl ether derivs. of formula (I) are new. In (I) R1 is H; halogen, 1-4C alkyl; CN; NO2; CF3; 1-4C alkylcarbonyl; 1-4C alkoxy, alkylthio or alkylsulphinyl opt. substd. by 1-5 halogen atoms; or 1-4C alkylsulphony opt. substd. by 1-4 halogen atoms; R2 is H or halogen; R3 is halogen; and R4 is NO2 or CN. (I) indice leaf fall in plants and can be used as defoliants for cotton plants. They can also be used to inhibit re-shooting of cotton plants.
Patent DE-2747534-A1 (DE)
Title: Glazing unpolished rims of porcelain hollow vessels - using a glaze with a coefft. of thermal expansion less than the porcelain
Inventor: HAHN CHRISTOPH DR
IPC: C03C8/02
Filed: 1977-10-22
Abstract: Unpolished rims of porcelain hollow vessels are glazed with a viscous rim glaze whose coefft. of thermal expansion is equal to to less than that of the porcelain body. The glaze is applied by rapid firing at 1200 degrees - 1300 degrees C. The normal thickness is 0.1-0.2 mm. Pref. glaze compsn. is (mol. %):SiP2 64.6%, B2O3, 18%, Al2O3 9.1%, CaO 5.5% BaO 1.8%, K2O 0.7% and TiO2 + FeO + MgO + Na2P 0.4%. Porcelain pieces, such as cups and bowls, are provided with relatively thick even glazes without formation of cracks. The problems associated with the grinding of the rims are provided.
Patent DE-2756955-A1 (DE)
Title: Solid fuel boiler adaptable for other fuels - has vertical and horizontal ducts inside, under top outlets for fuel tank
Inventor: VIESSMANN HANS
IPC: F24H1/44
Filed: 1977-12-21
Abstract: The solid fuel boiler which can be adapted for gas or oil firing, has between the chimney connection (6) and the combustion chamber (2) a vertical duct connected to a horizontal duct (5) discharging sideways. This is positioned under the two connections (6) which form part of a heating system for the oil or gas storage tank above the boiler. The vertical duct has corrugated sides (8) with the corrugations (9) on the two sides staggered. The horizontal duct (5) can be closed by a plate one end leaving the other end open. This duct is cooled by the water of the water jacket. The top (10) of the inner sheet forming the combustion chambers slopes downwards to the rear, under the horizontal duct. The rear part (12) is parallel to the vertical duct, and is also corrugated.
Patent DE-2811616-A1 (DE)
Title: Rack and pinion vehicle steering gear - has teeth of different sizes produced on multiple broach machine tool
Inventor: BISHOP ARTHUR ERNEST
IPC: B23F15/00
Filed: 1978-03-17
Abstract: The rack and pinion steering gear for automobiles has the teeth of the rack varied in size and shape along the length of the rack. The variation is symmetrical about the midpoint of the rack. The rack is produced on a machine with a long sliding bar (19) which carries pairs of broaches (23a-c) with a gradually increasing distance between each successive pair. The rack blank (11) is held in a clamp (12) with its angle of inclination controlled by a lever (16) with a roller (17) which runs in a groove (18).
Patent DE-2811751-A1 (DE)
Title: Thyristor circuit for reactive power compensation capacitor - has bidirectional bridge consisting of two antiparallel pair of series thyristors for switching in and out of power network
Inventor: KNUTH DETLEV DIPL ING
IPC: H02J3/18
Filed: 1978-03-17
Abstract: The thyristor switching circuit consists of a thyristor bridge with the compensation capacitor (1) in one diagonal and the power network connected to the other diagonal. Each half of the bridge is bidirectional and accordingly comprises two antiparallel pairs of series thyristors. The bridge may be fully or half controlled. In the latter case one pair of series thyristors in each half is replaced by corresponding diodes. The compensating diagonal of the bridge may contain several LC components. The advantage lies in almost entirely eliminating switching losses.
Patent DE-2818493-A1 (DE)
Title: Point bars for supporting ceramic mouldings during baking - made of heat resisting steel strip withstanding high loads
Inventor: MANZ PAUL
IPC: F27D5/00
Filed: 1978-04-27
Abstract: The bars consist of a bent strip forming a triangle open on one side; and the strip is made of heat resistant steel, pref. Cr-Ni steel. The two legs of the bent strip may be of equal or unequal lengths; and both ends of the strip and the bending zone pref. have increased width as compared with the rest of the strip. The strip pref. consists of Cr-Ni steel DIN 15-Cr-Ni-Si-2520. The point bars are simple to make and have a long working life.
Patent DE-2820444-A1 (DE)
Title: Quantitative analysis of gas component in gas mixt. - by accelerating to supersonic velocity in nozzle and reading compression shock changes
Inventor: EGOROV ALEKSANDR FEDOROVITSCH
IPC: G01N7/00
Filed: 1978-05-10
Abstract: In a quantitative analysis of the foreign gas or vapour content in a gas mixt., a jet of the mixt. is accelerated to supersonic velocity. The compression shock is varied in intensity and in its position along the nozzle axis; the desired content is determined from this. This has a greater measuring sensitivity than other known methods and requires only simple and functionally elements for its execution.
Patent DE-2820501-A1 (DE)
Title: Reinforced multi:tubular envelope for electric accumulator electrode - produced from double woven fabrics of tough and porous yarns
Inventor: TERZAGHI GIOVANNI
IPC: H01M4/76
Filed: 1978-05-11
Abstract: A reinforced multi-tubular envelope for the electrodes of electrical accumulators, has a high capacity for the retention of the active matter. The multi-tubular envelope is obtd. by producing two independent fabrics, equal in their characteristics, which are joined together at regular intervals by means of one or more interlinking weft ends. In the warp direction, the fabrics have multi-filament yarns of great toughness and a high degree of tensile strength. In the weft direction, the threads have great porosity derived from tufts of synthetic fibres. The tubular envelopes have a reinforced multiple structure with excellent mechanical characteristics and a good porosity. They permit the use of very fine powders and ensure that they are retained during the lifetime of the lead accumulator. The compression on the active material is maintained constantly even during variations in its vol. so that its coherence and the constancy of its conductivity are ensured through the lifetime of the accumulator.
Patent DE-2823407-A1 (DE)
Title: Diode stabilisation circuit drawing instrument - has pivoting shank working with protractor between perpendicular fixed ones, giving resistance
Inventor: GORGOSCH HERBERT
IPC: B43L13/00
Filed: 1978-05-29
Abstract: The drawing instrument dimensions Z-diode stabilisation circuits, having two shanks (1, 2) at right angles to each other. These form coordinate axes with divisions for voltage and current originating at the apex (3), where a further shank (4) pivots. Each angular position of this shank, set on a protractor (5), simultaneously allows the value of the initial resistance to be read off in ohms on a scale (7). When a preliminary resistance (Rv) is connected in series with a Z-diode, the characteristic of the latter forms an intersection point with the pivoting shank, acting as the working point of the circuit, the apex being set to the input voltage. Projection onto the second fixed shank (2) gives the voltage drop at the preliminary resistance. Projection onto the 1z axis gives the current flowing through both resistances.
Patent DE-2824058-A1 (DE)
Title: Centrifugal oil or fuel cleaner - has cylindrical rotor with spiral band wound around rotor and fixed to sleeve
Inventor: BERBER VIKTOR ALEKSEEVITSCH
IPC: B04B1/06
Filed: 1978-06-01
Abstract: A centrifugal liq. cleaner comprises a vertically extending hollow axle secured to a base, the axle having an inlet and an outlet for liq. The axle supports a cylindrical rotor having a casing accommodating a sleeve which is coaxial with the hollow axle and has a band wound in a spiral and fixed to the sleeve and spacers are mounted in a succession in the radial direction between adjacent turns of the spiral to extend in parallel with the hollow axle. The spacers define with the band, apertures for the passage of liq. The band has longitudinally extending ridges verticaly spaced along the entire height cambering towards the hollow axle. This construction enables an improvement of fineness of liq. cleaning by several times.
Patent DE-2828258-A1 (DE)
Title: Removing weld flash from corners of plastics or metal window frames - using machine fitted with profiled milling cutter and shear knives moved over frames
Inventor: EISENBACH BERNHARD
IPC: B23C3/12
Filed: 1978-06-28
Abstract: The machine has a baseplate fitted with two guide bars along which a plate can be driven horizontally. The plate has two projecting arms, each fitted with a spring-loaded shear knife for removing weld flash or beads from the front and rear surfaces of the frame. The plate also carries a motor driving a profiled milling cutter removing weld flash from the profiled perimeter of the frame. A hand lever is pref. used to move the plate along its guide bars; and the two shear knives are pref. each mounted on a swivel arm pushed towards the frame by springs or work cylinders. Simple but efficient removal of all weld flash in a single operation.
Patent DE-2828771-A1 (DE)
Title: Hygienic children's sand play box - has roller supported travelling closing cover resting on side beams, and made of planks
Inventor: EICHINGER HARTMUT
IPC: E04H4/00
Filed: 1978-06-30
Abstract: For use in children's playgrounds, the sand-box remains clean and hygienic, eliminating risk of fouling by dogs when not in use and permanently reducing risks to health. Its sealing cover is an one or two parts, lying on the side beams when open, and movable towards the box for closure. It can be in the form of planks, arranged across the direction of movement, with ends supported on beams running in that direction. These can have grooves for boards serving as sliding bars, fixed to the top of the box cladding.
Patent DE-2838147-A1 (DE)
Inventor: KOLLROSS GUENTER
IPC: A22C13/02
Filed: 1978-09-01
Abstract: A cylindre head for turning up flexible material particularly synthetic guts for producing sausages, facilitates the withdrawl of the turn up part and subsequently avoids the deteriorations, since its diameter is adjustable within the sector comprising the turn up part. Preferably, the cylindre head comprises a plurality of spring elements, in particular round spring steel wires (15) distributed about its axis; these springs may be spaced radially from each other above the surfaces of the lugs (25, 26), by means of an elongated working member (17) which may moove inside the head of the cylindre. Such a head of cylindre may be used either manually or mechanically and makes possible a permanent supply of high pressure air into the gut to be turned up, thereby improving the working member (17) as a hollow tube.
Patent DE-2839281-A1 (DE)
Title: Lamination for transformer magnetic cores - has middle limb is separated by cuts from one of yokes, and ends before yoke outer edge
Inventor: PHILBERTH BERNHARD
IPC: H01F27/245
Filed: 1978-09-09
Abstract: The core consists of interleaved laminations, and has three parallel limbs and two yokes connecting their ends. In order to insert laminations in the coil, two separating cuts are made between the end of the middle limb and the adjacent yoke. The width of the yoke not separated from the limb is greater than that on the side of the cut. The middle limb(1) ends at the cut side(17) at a distance(u) from the yoke outer edge(16) equal to the lamination thickness.
Patent DE-2841910-A1 (DE)
Title: Elastomeric strip hinge for doors or windows - is continuous over entire edge and fixes to dormant and mobile leaf forming seal
Inventor: ANGIOLETTI ATTILIO
IPC: E06B3/02
Filed: 1978-09-26
Abstract: The elastic hinge (8) may be deployed on side hung opening windows (1). It provides for pivoting of the leaf (1) about one of its edges (8), seals the edge (8) completely whether the window (1) is open or shut, and may be used to effect an automatic self-engendered return of the window (1) to a predetermined repose position. The hinge (8) may comprise a continuous elastic or elastomeric strip which is fixed (13) to one edge of the window and to the static frame (12). The strip extends over the whole of the window edge concerned and may be fixed directly to a masonry wall (4) defining the opening (2).
Patent DE-2842728-A1 (DE)
Title: Registration control for offset printer - with profiled holes in edge of master and locating pegs on base
Inventor: BRUCKER ERHARD
IPC: G03F9/00
Filed: 1978-09-30
Abstract: The offset print master is prepared from smaller masters using a simple locating peg array on the large master and a series of slots and holes in the edge of the small masters. The location is by the long slots as well as locating cuts in the sides of the small masters. The system allows selected copy sizes to be obtained from smaller part masters without additional process steps and with a minimum number of negatives.