baber/WOPTO huggingface dataset:
Patent GB-1167140-A (GB)
Title: Improvements in or relating to 16alpha,17alpha-Ethylene and Substituted Ethylene Derivatives of the Pregnane Series
IPC: C07J53/00
Filed: 1966-12-29
Abstract: 1,167,140. 16α,17α-Ethylene and -substituted ethylene steroids. SYNTEX CORP. 29 Dec., 1966 [14 Feb., 1966], No. 58151/66. Heading C2U. Novel steroids of the Formula (I) (wherein Z<SP>1</SP> and Z<SP>2</SP> are each a carbon-carbon single or double bond or an α,α,CXY bridge in which X and Y are each H, Cl or F; R<SP>1</SP> is H, Cl or F; R<SP>2</SP> is H, Cl, F, CH 3  or CF 3 ; R<SP>3</SP> is H or CH 3 , being CH 3  when there is a #<SP>1</SP>-double bond; R<SP>4</SP> is O or α-H (#-OR<SP>5</SP>) in which R<SP>5</SP> is H, tetrahydropyranyl or acyl, R<SP>4</SP> being O when there is a #<SP>1</SP>-double bond; each of A and B is H, Cl, F or C 1-4  alkyl, each of D and E is H, Cl, F, phenyl, C 1-4  alkyl, C 1-4  alkoxy, C 1-4  acyloxy or C 1-4  haloalkyl, or A and B or D and E taken together are methylene or difluoromethylene; Ac is acyl, and Z<SP>3</SP> is a carboncarbon single or double bond) are prepared from steroids of the Formula (II) by treatment with an olefin A.B.C=C.D.E. in an inert organic solvent while irradiating with ultraviolet light of wavelength 270-330 mÁ, followed by standard procedures to introduce the required substituents and double bonds. 3# - Acetozy - 5α - pregn - 16 - en - 20 - one is prepared by converting 3#-acetoxy- 17α-hydroxy- 5α-pregnan-20-one (prepared by acylation of the 3#-ol) to the 20-semicarbazone and refluxing this with acetic acid and acetic anhydride, followed by treating with water and pyruvic acid. 3# - acetoxy - 19 - norpregna - 5,16 - dien- 20-one is prepared by reacting 3-acetozy- 17α- hydroxy - 19 - norpregna - 3,5 - dien - 20 - one (prepared by enol-acylation of the #<SP>4</SP>-3-one) with methoxyamine hydrochloride to give 3 - acetoxy - 17α - hydroxy - 20 - methoxyimino- 19 - nor - pregna - 3,5 - diene, reducing this with NaBH 4  and hydrolysing to give 3#,17α-dihydroxy - 20 - methoxyimino - 19 - norpregn- 5-ene, keeping this at - 40 C. with pyridine and thionyl chloride to give 3#-hydroxy-20-methoxyimino - 19 - nor - pregna - 5,16 - diene, hydrolysing this to 3#-hydroxy- 19-nor-pregna-5, 16- dien-20-one, and acetylating this. The steroids of the invention, which are stated to possess progestational, anti-androgenic, anti-gonadotrophic and anti-estrogenic properties, may be made up into pharmaceutical compositions with suitable carriers.
Patent GB-1459777-A (GB)
Title: Spectrophotometer
IPC: G01J3/28
Filed: 1973-12-20
Abstract: 1459777 Spectrophotometers VARIAN TECHTRON PTY Ltd 20 Dec 1973 [20 Dec 1972] 59074/73 Heading G1A A chemical analysis spectrophotometer is provided with a store for baseline measurements in the absence of a sample, the stored value being combined with the signal value during a measurement. As shown, a UV or visible light from source 2 is passed through a scanning mono-chromator 3, 4 having a prism or grating coupled to a drive unit 5. The output beam is passed alternately by a chopper 6 through a reference cell 7 and a sample cell 8 and thence via a recombiner 9 to a photo-detector 11 which may be a photo-multiplier. The signal pass through preamplifier 12 and transmission percentage amplifier 13 to a recorder or read-out unit 14. Baseline measurements are made in the absence of a sample, the signal from amplifier 13 being converted to digital form and compared with a value selected to represent 100% transmission. This is achieved by a circuit 17 which generates a pulse whose length is proportional to the input voltage, a feed gate 23 which generates pulses for accumulation in a counter 24 and a switching and logic unit 25. The error signal and its sign are inserted in a register 29 and then transferred to a digital store 15 at a location determined by a signal from an address control 16 coupled to the monochromator scan drive and an address register 19. At the completion of a scan the store contains data on the deviations of the lease line from the selected value across the whole spectrum. During a measurement the store is sequentially addressed by the scan drive system and the appropriate lease line differences are read out and applied via a D to A converter 21 and an inverter 22 to the amplifier 13 to correct for the baseline errors. The store 15 may use MOS or other semi-conductor devices or be a ferrite core unit. The use of IR radiation is also mentioned.
Patent GB-1139560-A (GB)
Title: Lamp housing lens
Inventor: RUSSELL MARTYN
IPC: F21S8/00
Filed: 1967-12-29
Abstract: 1,139,560. Windows for underwater lamps. WATER CONDITIONING PRODUCTS CO. 29 Dec., 1967, No. 59223/67. Heading F4R. The window for an underwater lamp e.g. in swimming pools consists of a transparent or translucent non-conductive element 30 in which is embedded a conducting wire grid 32, the element being sealed in a metal ring 22 and at least one projection 38 from the grid extending through to seal to make an earth connection through the metal ring. The grid may consist of two sets of crossing wires or one or both of these may be replaced by flat metal strips inclined at an angle. These are preferably of light reflecting material. The window closes a recess in a wall of the pool, the recess being lined with a metal sleeve. The lamp 10 is held in place by spring clips 40, and its rim 16 is bolted to a ring 26 engaging the edge of the sleeve and the ring 22, a gasket 20 being interposed between these.
Patent GB-1418700-A (GB)
Title: Photographic developer compositions for silver halide material
IPC: G03C5/305
Filed: 1973-12-20
Abstract: 1418700 Dipyrido[1,2-a: 2<SP>1</SP>,1<SP>1</SP>-c][1,4]diazocidiinium derivatives FUJI PHOTO FILM CO Ltd 20 Dec 1973 [21 Dec 1972] 59234/73 Heading C2C [Also in Division G2] The compound of the formula is made by refluxing a : α<SP>1</SP>-dipyridyl and o-xylene bromide in dimethylformamide. The compound of the formula is made by treating the corresponding dibromide salt with silver nitrate.
Patent GB-1378169-A (GB)
Title: Method and apparatus for continuously enclosing a filler material in  a wrapper strip
IPC: A24C5/47
Filed: 1971-12-22
Abstract: 1378169 Tobacco-smoke filter manufacture HAUNI-WERKE KORBER & CO KG 22 Dec 1971 [30 Dec 1970] 59551/71 Addition to 1282173 Heading A2C In an apparatus for continuously wrapping a compressible filler, such as smoke filter material, in an outer wrapper strip which is sealed by an adhesive lap joint, of the kind in which a hot melt adhesive is applied to one edge of the wrapper which is then closed around the filler and the rod so produced is caused to pass through a guide incorporating a cooling device such as that disclosed in the parent Specification, the cooling device comprises a low temperature cooling element that engages only the overlapped seam area of the rod.
Patent GB-1282748-A (GB)
Title: Fastener devices
Inventor: GUTSHALL CHARLES EDWARD
IPC: F16B39/24
Filed: 1969-12-11
Abstract: 1282748 Locking screws ILLINOIS TOOL WORKS Inc 11 Dec 1969 [13 Dec 1968] 60576/69 Heading F2H A locking fastener comprises a screw having a clamping surface provided with teeth 14, and a lockwasher 20 provided with inclined teeth 21, the number of teeth on the washer being different from the number of teeth on the clamping surface of the screw. During tightening of the screw, the camming surfaces 15 of the screw teeth 14 slide over the washer teeth 21, but during attempted unscrewing, the camming surfaces 15 of some of the teeth are brought into abutment with the washer teeth to prevent further unscrewing after, at most, a small angular movement. The lockwasher may take the form of teeth extending radially inwards from an annulus.
Patent GB-1235810-A (GB)
Title: A process for the manufacture of l-3-(3,4-dihydroxyphenyl)-alanine
IPC: A61K31/195
Filed: 1969-12-16
Abstract: 1,235,810. L - 3 - (3,4 - dihydroxyphenyl)- alanine. F. HOFFMANN-LA ROCHE & CO. A.G. 16 Dec., 1969 [27 Dec., 1968], No. 61247/69. Heading C2C. L - 3 - (3,4 -  dihydroxyphenyl) alanine is prepared by converting D, L-N-benzoyl-3-(4-hydroxy - 3 - methoxyphenyl) - alanine into the diastereomeric salts with dehydroabietylamine, separating these salts from each other, converting the novel L-N-benzoyl-3-(4-hydroxy-3-methoxyphenyl)-alanine abietylamine salt into the desired product via the novel L-N-benzoyl-3-(4- hydroxy - 3 - methoxyphenyl) - alanine, for example by treatment with acid or base followed by treatment with concentrated hydrohalic acid, and optionally racemizing the D-antipode and leading the racemate back into the process if desired. D,L - N - benzoyl - 3 - (4 - hydroxy - 3 - methoxyphenyl)-alanine is prepared by catalytic hydrogenation of 2-phenyl-4-(o-acetyl-vanillyle. dene)-2-oxazolin-5-one prepared by condensing vanillin and hypusic acid in presence of acetic anhydride.
Patent GB-1246820-A (GB)
Title: Power supply for a stepping motor
IPC: H02P8/12
Filed: 1968-12-24
Abstract: 1,246,820. Control of stepper motors. SUPERIOR ELECTRIC CO. 24 Dec., 1968 [5 Jan., 1968], No. 61432/68. Heading H2J. A control circuit 13 for a stepper motor 17 comprises transistors 15 which distribute pulses from a variable-frequency source 14 to energize the motor windings 16 in sequence. The motor windings are supplied from an A.C. source 20 through a transformer 22 and diodes 24, 25. With increasing speed, the motor current decreases so that the voltage drop across inductance 27 is reduced to increase the voltage applied to the motor. The effective impedance of the inductance 27 is reduced at lower values of current by connecting capacitor 28 across the input to the transformer 22. The motor windings are also supplied at constant voltage through transformer 34 and diodes 35 whereby the motor torque is increased at the lower stepping speeds.
Patent GB-1248496-A (GB)
Title: Improvements in breaking pressure distributors
IPC: B60T8/18
Filed: 1969-12-17
Abstract: 1,248,496. Load responsive brakes. REGIE NATIONALE DES USINES RENAULT, and AUTOMOBILES PEUGEOT. 17 Dec., 1969 [23 Dec., 1968], No. 61574/69. Heading F2F. A device for limiting the braking pressure on the rear wheels of a motor vehicle comprises a distributer cylinder having a piston (not shown) the body 2 of which cylinder has pivoted thereto arms 5, 6 rigid with a pivot pin 4, the arm 6 carrying an inertia weight 6 and the arm 5 carrying an element 5a forming a stop for the piston. A spring 9 pivoted to the frame 11 of the vehicle also acts on the piston and is actuated by a control rod 12 attached to a yoke 17 clamped to a torsion bar 18 an anti-roll device of the vehicle so that the pressure exerted on the piston carrier according to the momentary load applied to the suspension system.
Patent GB-664351-A (GB)
IPC: F02B53/00
Abstract: 664,351. Liquid-piston engines. MUNGUET. O. F. Feb. 23, 1948 [Feb. 22, 1947], No. 5378/48. Class 7(ii) A combustion cylinder A, Fig. 1, closed at one end and partly filled with liquid F, such as water or mercury or mixtures of water and coal or wood dust, communicates at the open end with two or other even number of buffer cylinders B, B<SP>1</SP> disposed symmetrically on opposite sides of the cylinder A, each cylinder B, B' having a bore area one-half (or lower fraction where more than two cylinders are used) that of the cylinder A, whereby displacement of the liquid on combustion produces equal forces acting in opposite directions so as to provide a balanced engine. Alternatively, two or more combustion cylinders A<SP>1</SP>, B, Fig. 5, form a group, each cylinder communicating with a buffer cylinder B<SP>1</SP>, A respectively, and the buffer cylinders are disposed symmetrically on opposite sides of the cylinders. The outward movement of the liquid from A towards B and B<SP>1</SP> drives turbine wheels G, G<SP>1</SP> which rotate a gear K through a free-wheel H. On the return stroke of the liquid, energy may be stored in springs which assist the drive in the next cycle. The gear K may drive twin propellers of a submarine. A regenerator S may be provided, the exhaust passing through a condenser R whereby liquid F lost to the exhaust by vaporization may be recovered. The buffer cylinders may be fitted with valves whereby air may be admitted, compressed and delivered to high-pressure bottles or used for scavenging; also, admission and pressure-relief valves B<SP>11</SP>, B<SP>111</SP>respectively may be interconnected by a pipe leading to the regenerator through the condenser R, a water-aspirating pump T may be driven from the gear K, gases issuing from the relief valve B<SP>111</SP> may be compressed in a hydraulic cylinder the piston of which is actuated by the flow of liquid F, Fig. 3 (not shown). Liquid at high pressure may be stored in an accumulator Q, and a piston for driving various parts may be actuated by liquid tapped off at C<SP>1</SP>.
Patent GB-2006353-A (GB)
Title: Power transmission units
IPC: F16H57/04
Filed: 1978-07-21
Abstract: In a final drive gearing of a power transmission unit, which comprises a drive pinion shaft supported by a pair of axially spaced bearings carried on an upright partition wall of a trans-axle casing and including a pinion in mesh with a crown wheel, an abdominal cavity is provided on the partition wall to receive lubrication oil dipped up by rotation of the crown wheel, and a lateral hole is provided through the partition wall to communicate the cavity into an annular space around the drive pinion shaft between the bearings.
Patent GB-2006059-A (GB)
Title: Electric Rotor
IPC: H02K1/24
Filed: 1978-08-17
Abstract: Poles pieces for an electrical rotor for a low power alternator are produced by cutting out members 2'' in the form of double toothed racks with opposing teeth and a slot 9 from a strip of iron. The slot is deformed so as to make it into a polygonal bore and the member cut out takes the form of a star. The teeth are bent over and a pole piece is attached to each end of a core with their teeth inter-engaging. In another embodiment single toothed racks are formed which are bent in their own plane and the opposing rack ends are welded to produce a star. <IMAGE>
Patent GB-2037227-A (GB)
Title: Printing stamps
IPC: B41K1/02
Filed: 1978-09-29
Abstract: A hand printing stamp has a platen 5 whose surface carries an array of substantially identical indicia 21. In a preferred form the stamp comprises a dished housing 1 having a peripheral portion 12 surrounding a central portion 11, the peripheral portion being such that it can support the stamp on a surface to be printed, and the platen being mounted in the housing for relative movement therewith from an operative position in which, when the stamp is supported by said peripheral portion on the surface to be printed, the indica are in contact with said surface to a retracted position in which the indica are spaced apart from said surface. The stamp is intended primarily for use in competitions where the entrant has to indicate on a football action photograph the supposed position of the ball.
Patent GB-2030970-A (GB)
Title: Container and child-proof closure assemblies
IPC: B65D50/04
Filed: 1978-10-06
Abstract: A container and child-proof closure assembly comprises a container (1) having a cylindrical open end externally screw-threaded (4) to receive an internally screw-threaded closure (10). The container has a pair of diametrically opposed projections (8, 9) for engagement in diametrically opposed open-ended slots (13, 14) located in an annular flexible skirt portion (12) when the closure is fully screwed home thereby locking the closure. The inner surface of the skirt portion is annularly spaced from the container when the closure is applied thereto. To release the projections from the slots pressure is applied at diametrically opposed points of the skirt portion transverse to the diametrical line of the slots while the closure is rotated. The annular space between the skirt and container may be provided by a reduced diameter portion of the container and/or an increased internal diameter of the skirt portion. <IMAGE>
Patent GB-2008813-A (GB)
Title: Liquid crystal display cell for an elctronic timepiece
IPC: G02F1/1333
Filed: 1978-10-16
Abstract: A liquid crystal display cell for use in an electronic timepiece having an analog display of time by time indicating hands combined with a digital display, said liquid crystal display cell being of polygonal profile in plan, with one internal angle of said profile being in the range 180 degrees to 360 degrees.
Patent GB-2007981-A (GB)
Title: Female contraceptive devices
IPC: A61F6/08
Filed: 1978-10-26
Abstract: The invention relates to a disposable contraceptive device having a first member 12 for engaging the walls of the vaginal vault and a second member 20 for engaging and closing the cervical opening. The first and second members are preferably substantially discoid, the second member preferably having a smaller area than the first. The second member is preferably of an impermeable sponge-like material which may be lubricated to aid in adhesion and closure of the cervix. The first member is generally resiliently foldable so that the overall dimension of the contraceptive device may be reduced in size for insertion into the vaginal vault. The first member is defined at least by opposed anterior and posterior portions which are for engaging the respective anterior and posterior portions of the vaginal vault. The second member is coupled or joined to the first member, preferably at the posterior portion of said first member. <IMAGE>
Patent GB-2011933-A (GB)
Title: Preservation of latex
IPC: C08K5/13
Filed: 1979-01-10
Abstract: Natural rubber field latex is preserved and stabilised against coagulation by using a nonionic surfactant having a hydrophilic lipophilic balance (HLB) value of at least 12 either alone or in combination with small quantities of ammonia. The preferred nonionic surfactants have HLB values from 14 to 20, and include ethylene condensation products of lipophilic especially fatty alcohol residues. The use of this preservative system prevents coagulation whilst permitting bacterial action which can have beneficial effects especially when the latex is gelled by heat or mechanical action. The beneficial bacterial activity can be accelerated by seeding the latex with portions of mature bacteria rich lattices preserved according to the invention.
Patent GB-2015264-A (GB)
Title: Container for circuit boards
IPC: H05K7/14
Filed: 1979-02-01
Abstract: A detector for use in detecting faulty conditions of temperature and/or pressure comprises a box 11 having a rear channel 12 whereby it may be mounted on a rail 12'. Adjacent the rear surface are a plurality of external connections 13 connected to interior push-in connectors. A plurality of independent circuit boards are mounted in slots 14, 15, 16 which guide them to make contact with the push-in connectors. <IMAGE>
Patent GB-2046426-A (GB)
Title: A hyperbaric chamber for supporting life
IPC: B63C11/28
Filed: 1979-03-02
Abstract: A hyperbaric chamber for supporting life has a heat exchanger (not shown) arranged therein to heat the atmosphere within the chamber and a thermodynamic means supported externally of the chamber for supplying a hot fluid to said heat exchanger. The thermodynamic means comprises an evaporator (1) connected by way of a compressor (3) to a condensor (2). The condensor (2) is also connected to the evaporator (1) by way of expansion valves (4). A hot fluid supply circuit (23a, 21, 15a) is associated with the condensor (2). The evaporator (1) is mounted in an open tank such that the thermodynamic lever can be used with the evaporator (1) immersed in sea water to recover heat from the sea water. A second heat exchanger in the chamber is supplied with a cold fluid through a supply circuit associated with the evaporator. <IMAGE>
Patent GB-2045593-A (GB)
Title: Bakers oven
IPC: A21B2/00
Filed: 1979-04-07
Abstract: A baker's oven, for baking biscuits and confectionery, has an oven chamber 10, a moving band 11 for transport of articles to be baked through the oven, and at least one heating panel 12 below the band 11 for transmission of radiant heat to the band and articles thereon. Supplementary heat may be supplied to the articles on band 11 by a forced convection system 13 above the band. <IMAGE>
Patent GB-2019841-A (GB)
Title: 8-exo-hydroxymethyl-endotricyclo (5.2.1.0<2,6>) decane derivatives
IPC: A61Q13/00
Filed: 1979-04-24
Abstract: As new compounds, there are provided 8-exo-hydroxymethyl-endotricyclo [5.2.1.0<2,6>] decane derivatives represented by the formula (I):   <IMAGE> wherein R represents a saturated or unsaturated alkyl group having 1 to 5 carbon atoms, an acyl group having 1 to 5 carbon atoms, or a glycidyl group, and the group of ROH2C- is connected to the 8-position of a norbornane ring on the exo-side. The compounds possess pleasant odours and are useful in perfume compositions and other cosmetic preparations.
Patent GB-2021505-A (GB)
Title: Composite Drive or Conveyor Belt
IPC: B65G15/42
Filed: 1979-05-21
Abstract: A conveyor or drive belt for delicate articles e.g. cigarettes is formed of at least two layers of flexible material bonded together, at least one of the layers having a series of integrally formed projections to engage the articles or drive teeth. The belt is preferably formed from three thicknesses of polyester web, i.e. a middle flat layer (2) and two outer layers, one of which (4) is impressed with rounded shapes forming flights (6) and the other of which (10) is impressed with angular shapes forming drive teeth (12). The forming may be carried out by pressing each layer between suitable heated rollers. Preferably the conveyor flights do not extend to the extreme edges, a narrow edge margin being left which can be continuously bonded to the assembly comprising the other two layers. Reinforcing wires may be incorporated in the composite structure. <IMAGE>
Patent GB-2026329-A (GB)
Title: A ground supported playground device
IPC: A63G13/08
Filed: 1979-07-03
Abstract: A playground device mounted on a support such as a heavy coil spring, the lower end of which is fastened to a ground anchor which is a lightweight construction comprises a lowermost horizontal plate member 14 adapted to be buried in a hole in the ground and a number of substantially vertical legs 12 connecting this plate member with an upper mounting member 10 adapted to be located in the ground surface level and stabilized in this location by said hole being refilled with earth, the mounting member serving to rigidly hold the lower end of the support of the playground device. <IMAGE>
Patent GB-2027045-A (GB)
Title: Polymer Solutions Useful for Treating Hair
IPC: A61K8/81
Filed: 1979-07-27
Abstract: The solutions comprise:     a) 20 to 99% by weight of water; b) 0.5 to 79% by weight of a water- soluble cationic vinyl copolymer composed of     i) monomer units containing a quaternary ammonium salt group; ii) monomer units of an  alpha , beta - unsaturated carboxylic acid or a water-soluble salt thereof; iii) if desired, monomer units containing an amino or primary, secondary, tertiary or quaternary ammonium groups; and (iv) also if desired, units of one or more non-ionic comonomers which are copolymerisable with monomers i), ii) and iii); the said copolymer containing the following proportions of monomer units i), ii), and (where present) iii) and iv), namely, at least 5 molar % of monomer units i); more than 20 molar % of monomer units i) and where present, iii); monomer units ii) in an amount of at least 5 molar % but less than the sum of the molar % amounts of monomer units i) and iii); and less than 75 molar % of monomer units iv); and c) 0.5 to 79% of at least one water- soluble ionic or ionisable compound which is capable of forming a precipitate when admixed with an aqueous solution of poly(methacryloxyethyltrimethylammonium chloride).   The solutions may be used for example as hair shampoos. The presence in the vinyl copolymer of the specified amount of monomer units i) overcomes previous stability problems encountered with solutions of cationic polymers, which solutions also contain anionic surface active agents or anionic polyelectrolytes.