baber/WOPTO huggingface dataset:
Patent GB-1286411-A (GB)
Title: Colour photographic light-sensitive material containing a yellow-forming coupler
IPC: G03C7/36
Filed: 1970-10-16
Abstract: 1286411 Photographic colour couplers FUJI PHOTO FILM CO Ltd 16 Oct 1970 [17 Oct 1969] 49275/70 Heading G2C [Also in Division C2] A photographic silver halide colour material contains in the emulsion layer a colour coupler of the formula:- where R is an aliphatic radical of 8 to 20 carbon atoms, W and X are each H or alkoxy but at least one must be alkoxy, Y is H or halogen and Z is halogen. The coupler is incorporated into the emulsion by dissolving in (i) a non-volatile, waterinsoluble solvent, (ii) a high-boiling, water mixible solvent or (iii) a low-boiling water-mixible solvent and dispersing the solution into the emulsion. Solvents of all three types are listed. The colour material may also contain a u/v-absorbing compound in the support or another layer.
Patent GB-1085638-A (GB)
Title: Light sensitive silver halide emulsions
Inventor: DOSTES CLAUDE GUY
IPC: G03C1/09
Filed: 1964-12-04
Abstract: 1,085,638. Photographic silver halide emulsions. EASTMAN KODAK CO. Dec.4, 1964 [Dec.5, 1963], No.49331/64. Heading G2C. In the preparation of a photographic lightsensitive silver halide emulsion, a tetrazaindene salt and a gold, ruthenium, rhodium, palladium, platinum or indium salt are added to the emulsion after the cessation of heating in the main digestion step, and the emulsion is subjected to a subsidiary digestion step which may comprise the cooling down of the emulsion from the main digestion step or may comprise re-heating the emulsion to maintain it at a controlled temperature before cooling, for example at about 50‹C. for 1-10 minutes. The emulsion may have been optically sensitized and gold- and sulphur sensitized. The tetrazaindene salts are alkali-metal salts of hydroxy or carboxy substituted tetrazaindenes.
Patent GB-1272570-A (GB)
Title: Improvements in or relating to automatic tracking radio equipments
Inventor: MARK JOHN RICHARD
IPC: H01Q25/04
Filed: 1968-10-17
Abstract: 1,272,570. Radio direction finding; aerials. MARCONI CO. Ltd. 2 Sept., 1969 [17 Oct., 1968], No. 49364/68. Headings H4A and H4D. Tracking equipment, particularly for use at a ground station co-operating with a communications satellite, has an aerial, such as a horn 2, Fig. 3, which is coupled to a circular waveguide 3. A resonant cavity 5 is also coupled to the waveguide 3, through a slot 4. Received signal set up TE 11  and TE 21  mode waves in the circular waveguide, and the latter excite the cavity, which thereupon re-radiates TE 11  mode waves into the waveguide. Means are provided for rotating the said waveguide, and a resultant output is obtained therefrom of amplitude modulated TE 11  mode waves. From these output waves, and from signals (obtained from suitable means) which are indicative of the angular position of the waveguide 3, tracking error signals are derived. As described, the slot 4 is longitudinal, the cavity 5 is rectangular, and is provided with a tuning plunger 6 at one end. The waveguide 3 is coupled through a rotatable choked coupling 7 to a second circular waveguide 8 which terminates in a diplexer 9, the diplexer having a rectangular waveguide output 11 and a rectangular waveguide input 12. A polarizer 10 is positioned in the circular waveguide 8 for ensuring correct polarization of transmitted signals. The horn 2 is positioned in operation to receive signals from and to transmit signals to a parabolic reflector (Fig. 1, not shown). Said horn 2, the waveguide 3, the cavity 5 and the movable part of the choked coupling 7 are rotated about the axis of the waveguide by a motor 13, Fit. 5. Synchros spaced 90 degrees apart are associated with the choked coupling 7. Output from the port 11 is taken to a filter 16, which blocks signals at the frequency of transmission, and thence to a parametric amplifier 17, which gives an output of communication signals to a filter 18, and an output of directional signals to a mixer and local oscillator 20. The directional signals are taken through filters 21, 22 to phase and amplitude comparison circuits 14, 15, which also receive respective inputs from the synchros indicative of the position of the waveguide 3. The circuits 14, 15 give signals representative of the H and E plane errors, and these can be applied to aerial drive means, to maintain tracking. It is stated that the equipment will function with either linearly or circularly polarized signals transmitted by the satellite. In a modification, two slots and two cavities are utilized, spaced circumferentially 90 degrees apart on the circular waveguide.
Patent GB-1474712-A (GB)
Title: Oil recovery process usable in formations containing water having high concentrations of polyvalent ions
IPC: C09K8/584
Filed: 1974-11-15
Abstract: 1474712 Oil recovery TEXACO DEVELOPMENT CORP 15 Nov 1974 [3 Dec 1973] 49440/74 Heading E1F Oil is recovered from a subterranean formation containing water having polyvalent ions in a concentration of from 200 to 18,000 ppm by injecting an aqueous surfactant solution comprising a water soluble salt of alkyl or alkylaryl sulphonates having an average molecular weight of less than 360 and an alkyl chain length of from 5 to 25 carbon atoms, and a water soluble salt of an oxyalkylated alkylaryl sulphate. Preferably the cation associated with the sulphonate salt is sodium, potassium or ammonium, and the sulphate has the formula: in which R' is a C 5-20  alkyl radical, N is an integer from 1 to 10, and W is sodium, potassium or ammonium. The aqueous surfactant solution contains 0.05-5.00% by weight of each of the sulphonate and sulphate surfactants, and the ratio of sulphonate to sulphate surfactant varies from 8:1 to 1:8. Preferably the aqueous surfactant solution is preceded by a sacrificial material tb lessen adsorption of the surfactants, e.g. an organic or inorganic water soluble salt, and/or a polymer; and is followed by an aqueous polymer solution or a gas, the gas being in combination with an aqueous fluid containing a polymer. The aqueous surfactant solution may contain polyvalent inorganic ions and a hydrophilic polymer.
Patent GB-1359878-A (GB)
Title: Production of anthraquinone- -1,2-c- -isoxazole
IPC: C07D261/20
Filed: 1971-10-27
Abstract: 1359878 Anthraquinone - [1,2 - c] - isoxazole BADISCHE ANILIN- & SODA-FABRIK AG 27 Oct 1971 [28 Oct 1970] 49843/71 Heading C2C Anthraquinone-[1,2-C]-isoxazole is prepared by reaction of 1-nitro-2-methylanthraquinone with oleum at 30-150‹ C. for not more than 15 minutes, preferably in the presence of chlorosulphonic acid.
Patent GB-1187187-A (GB)
Title: Improvements in and relating to Ball-and-Socket Joints for Motor Vehicles.
IPC: F16C11/06
Filed: 1968-10-21
Abstract: 1,187,187. Ball and socket joint. LEMFORDER METALLWAREN A.G. 21 Oct., 1968 [27 Oct., 1967], No. 49870/68. Heading E2F. In a ball-and-socket joint having a ballheaded pin 2 mounted in a resilient bearing socket 4 in a joint casing 1 closed by a cover 7 and a sealing boot 5, the bearing socket is formed integral with an annular resilient disc 8, which bears on the ball head 3 and optionally is provided with longitudinal slots 8a. The bearing socket 4 consists of a hard-elastic material and has, in the region of the disc 8, an outer periphery greater than the inner periphery of the casing 1. The closure cover 7 bears on the upper edge of the bearing socket 4 at a distance from the resilient disc 8.
Patent GB-1152309-A (GB)
Title: Electrographic Apparatus
Inventor: FRANK LEE FITZPATRICK
IPC: G03G15/22
Filed: 1966-04-29
Abstract: 1,152,309. Electrostatic printing. EASTMAN KODAK CO. 29 April, 1966 [30 April, 1965], No. 49886/68. Divided out of 1,149,901. Headings B6C and B6F. [Also in Division H4] An electrographic apparatus for forming developable electrostatic charge images on an insulating surface of a receiving member comprises an ion source (e.g. a corona discharge), a backing electrode for attracting electrodes from the source to the insulating surface and an ionpermeable array defining an image for modulating the flow of ions in accordance with the image. The following embodiments are described: (a) the ion-permeable array comprises a conductive grid having thereon an insulating coating in image configuration (Fig. 2, not shown) ; (b) the array comprises a series of grids each in the shape of an arabic numeral, the grid(s) which modulate(s) the ion flow, and hence the numeral(s) printed being selected by being earthed via a switch which may be controlled by a photo-cell. A line of numerals may be printed in one step using photo-cells with good memory, the memory being erased by conductive grids after each printing step (Figs. 3, 4 and 6, not shown); (c) the array comprises a series of single grids so arranged that by selective energization or grounding an image of any numeral may be formed. The selective energization or grounding is effected by a diode matrix connected to a battery of photo-cells which are selectively switched by a punch card or cathode-ray tube.
Patent GB-1001200-A (GB)
IPC: C07D315/00
Filed: 1963-12-18
Abstract: (dl)-Trans-chrysanthemic acid is obtained by reacting 4 - methyl - 3 - methallyl - g  - valerolactone with a compound known to be capable of converting a g -lactone into a g -halogen-acyl halide (e.g. a phosphorus halide, phosgene, a sulphonic acid chloride or thionyl chloride), reacting the resulting acyl halide with an alkanol, optionally containing a hydrogen halide, cyclizing the ester so produced (5-methyl - 5 - chloro - 3 - (1 - chloroisopropyl)-hexanoate in examples) with a strong anhydrous base (e.g. an alkali metal hydride, amide or alkoxide or triphenyl-methylsodium) in an inert organic solvent, and saponifying the cyclic ester thus obtained with a strong alkali to liberate free (dl)-trans-chrysanthemic acid or its isomer 2,2 - dimethyl - methallyl - cyclopropane carboxylic acid or both, and, when the final product contains said isomer, heating it with an organic sulphonic acid as catalyst to isomerize it to (dl)-trans-chrysanthemic acid.  The invention also comprises as a novel compound 4 - methyl - 3 - methallyl - g  - valerolactone. It may be prepared by reacting an alkyl 3-methallyl-levulinate with a methyl magnesium halide in an anhydrous medium and hydrolysing the product.  Alkyl 3-methallyllevulinates, also said to be novel, are prepared by reacting an alkyl end ether of an alkyl levulinate with methallyl alcohol in the presence of a strong acid and tranposing the resulting methallylenolether by heating.  The ethyl ester is thus prepared in Example 1.  Specification 933,193 is referred to.
Patent GB-1365396-A (GB)
Title: Solenoid having increased throw capability
IPC: H01F7/16
Filed: 1972-10-31
Abstract: 1365396 Metallic springs CENTRONICS DATA COMPUTER CORP 31 Oct 1972 [30 Nov 1971] 50130/72 Heading F2S [Also in Divisions B6 and H1] A solenoid assembly (see Division H1), e.g. for a dot matrix impact printer, comprises a cylindrical case 11 threaded at one end 11c to receive a closure 23 and contains a solenoid coil 17 around an internal stem 12c. A print wire 15 reciprocates in a force-fitted lubricated guide 14 and its inner end is secured within the axial bore 18a of a cylindrical solenoid armature 18 which is shouldered for fastening at 21 to a circular spring 19 which rests upon spacer 22 resting on shoulder 11b; the armature and spring are retained by the threaded closure 23 having a central projection 23b, bearing on fastening 21. The closure is screwdriver-slotted for adjusting preloading of spring 19, after which it is sealable by epoxy resin. The preloading may be measured by a probe inserted through an axial opening 23c of the closure. The spring 19 (Fig. 2) may comprise a flat disc of sheet steel whose central portion 19a has an opening 19b to receive the armature and whose periphery 19c engages spacer 22. A pair of interleaved involute spiral slots are cut in the disc, with their inner and outer ends opposed along diameters D1, D2, and the spring is equivalent to an elongated leaf spring wound into spiral form, to have a nonlinear force deflection characteristic (Fig. 2a, not shown). Alternatively (Fig. 3, not shown), the slots may be Archimedean spirals. Normally, the spring holds the print wire in disengagement when the solenoid is de-energized, and on energization the print wire is moved to impact position against the spring force. On de-energization, the print wire is rapidly restored without bounce or overshoot. Specifications 1,338,009, 1,365,395 and U.S.A. Specification 3,703,949 are referred to.
Patent GB-1101209-A (GB)
Title: Parking meter for vehicles
IPC: G07F17/24
Filed: 1965-11-26
Abstract: 1,101,209. Parking meters. SOC. ANON. FRANCAISE DES APPAREILS AUTOMATIQUES TAXIMETRES - TAXIPHONES. 26 Nov., 1965 [4 Dec., 1964; 5 July, 1965], No. 50465/65. Heading G4V. A parking meter has separate slots 3a, 3b for the insertion of coins 12 for separate periods of time, each slot leading to a visible pocket 4a, 4b in which the coins 12 can be retained for visual checking, and from which the coins can be discharged into a removable till 10. The coins may rest at the bottom of the pocket on a bar (7, Fig. 2, not shown) which is pivoted by a crank (16) and key inserted at 13a to allow the coins to drop. Alternatively the lower part (17) of the back wall of the pocket may be hinged. In another embodiment (Figs. 3-5, not shown), the slots are vertical and arranged down the sides of the meter. The pockets form inclined shoots, and terminate in movable pins (25) on a hinged flap (26) biased by a spring (30) away from the pockets and urged by a key through a cam (28) towards the pockets. The plate may be pivoted through part of its travel to release only coins in the lower pockets, which may, for example, have been inserted before the due time. Two meters may be fitted back to back in the same casing, and the cam (28) may then be common to the two meters. The till is automatically locked on removal, and the coins may be counted as they pass through the slots. Different coins may be accommodated in each slot, and different fees and different lengths of time may be indicated for different pockets.
Patent GB-1129279-A (GB)
Title: Production of hexamethylene oxide
Inventor: ADAM KARL
IPC: C07D309/04
Filed: 1966-11-16
Abstract: 1,129,279. Hexamethylene oxide. BADISCHE ANILIN- & SODA-FABRIK A.G. 16 Nov., 1966 [17 Nov., 1965], No. 51328/66. Heading C2C. Hexamethylene oxide is made by dehydrating hexane-diol-(1,6) at elevated temperatures in the presence of solid dehydration catalysts the reaction of the starting material being incomplete. The catalyst is preferably non- alkaline and porous. Numerous catalysts are specified including porous materials impregnated with dehydrating agents such as sulphuric acid. Advantageously conversions of 20-88% are effected. Reaction may be effected in an inert diluent especially water c.f. Specification 1,129,280 and 1,095,779. Advisably an inert gas, e.g. nitrogen or hydrogen, should be present. 2-Methyltetrahydropyran, polyhexamethylene oxide and hexenol-(1,6), the latter especially when catalysts containing vanadium are used, may be obtained as by-products. Examples are provided the catalysts used being (1) active aluminium oxide with 20% by weight aluminium chromate, (2) and (3) aluminium oxide containing 0À5% by weight of copper chromite, (4) aluminium oxide containing 20% by weight of aluminium chromate and 10% of boric acid, (5) aluminium phosphate containing 0À5% by weight of vanadium (as vanadium pentoxide) and (6) aluminium hydroxide containing 20% by weight of aluminium chromate and 0À5% of tungsten (as tungstic acid).
Patent GB-1100985-A (GB)
Title: Metal formate-overbased metal sulphonate complexes
Inventor: OTTO FERDINAND PHILIP
IPC: C10M159/24
Filed: 1966-11-17
Abstract: Mineral lubricating oil compositions contain soluble Ba, Ca or Sr formate/overbased sulphonate complexes which contain at least 200% more metal than the normal sulphonates.  In examples, the compositions contain as an optional ingredient sulphurized Ca phenate/carbonate.ALSO:The invention comprises oil-soluble Ba, Ca or Sr formate/overbased sulphonate complexes, having a metal content at least 200% higher than the normal sulphonates, obtainable by reacting the corresponding carbonate/overbased sulphonate complex with formic acid to completely convert the carbonate component to formate.
Patent GB-1399611-A (GB)
Title: Vehicle cab fron suspension
IPC: B62D33/067
Filed: 1972-11-10
Abstract: 1399611 Vehicle cab suspensions FORD MOTOR CO Ltd 10 Nov 1972 51926/72 Heading B7D A motor vehicle cab suspension includes at each side of the forward end of the cab a front suspension assembly comprising a longitudinal link 13 pivotally connected to brackets 11, 12 bolted to the vehicle chassis 10 and the cab respectively, and a coil spring 16 is interposed between bracket 10 and a point on the link 13 adjacent its pivotal connection to the bracket 11. A telescopic lamp 26 is connected between the bracket 12 and link 13. Rubber bump stops 23, 24 carried by a rod 20 pivotally connected to the link 13 co-operate with a frusto-conical housing 18 which extends through an aperture 35 in the bracket 12 and has a flange 19 held between the bracket and the cab. A forward extension 30 of the link 13 is formed with a square recess which receives one end of an anti-roll bar extending between the suspension assemblies on opposite sides of the cab. A rearward extension 33 of the link 13 is formed with a socket 34 for connection to an hydraulic ram for tilting the cab about the pivotal connection between the link 13 and bracket 11.
Patent GB-1142078-A (GB)
Title: Improvements in or relating to boats
IPC: B63B5/24
Filed: 1967-11-15
Abstract: 1,142,078. Plastic boats. BLOHM & VOSS A.G. 15 Nov., 1967 [15 June, 1967], No. 51961/67. Heading B7A. A boat has a hull of glassfibre reinforced synthetic resin in one piece with an oar support rim 4 which extends inwardly and serves as a gunwale 3, the pull consisting of an outer shell 1 into which an inner shell can be inserted. The inner shell is provided with transverse bench members 7, longitudinal bench members, a rim 12 which extends over and is adhered to the gunwale 3. The bench members form storage spaces 9 which have manholes 10 in the walls thereof and covers 11 in the region of the bilge. Spaces between the inner and outer shells may be filled with a foamed synthetic resin 13. Hoisting hooks (not shown) are provided.
Patent GB-1495079-A (GB)
Title: Preparing ethylene glycol
IPC: C07C31/20
Filed: 1975-12-19
Abstract: 1495079 Ethylene glycol AMERICAN CYANAMID CO 19 Dec 1975 52216/75 Heading C2C A process for preparing ethylene glycol by bringing into reactive combination ethylene, water and oxygen in the presence of an aqueous iodine-containing catalyst for said reaction, comprises the steps of: adding (in relative quantities) from 0À350 to 0À490 mole of oxygen and an aqueous solution of a catalytic iodinecontaining compound selected from iodine, hydrogen iodide, ethylene diiodide and iodoethanol and mixtures thereof dissolved in at least 1 mole water to a first reaction zone, introducing about 1 mole of ethylene and about 0À010 to 0À150 mole of oxygen to a second reaction zone, the amount of oxygen in both zones being equal to about 0À5 mole, withdrawing unreacted ethylene from the second reaction from overhead vapour and introducing the same into the said first reaction zone, withdrawing from the first reaction zone a mixture of relatively high boiling organic iodides, iodine and ethylene glycol, introducing the latter mixture into said second reaction zone while maintaining said reaction zones at temperatures ranging from between 75‹ C. and 175‹ C. and pressures ranging from between 50 p.s.i. and 1000 p.s.i. in each of said reaction zones, withdrawing a mixture of low boiling iodides and ethylene glycol as bottom liquid from the second reaction zone, and subjecting the latter to distillation at a temperature of from 50‹ C. to 190‹ C. and under subatmospheric pressure ranging from 1 mmHg to 700 mmHg.
Patent GB-525705-A (GB)
Abstract: 525,705. Propenylbenzene derivatives. STAFFORD, ALLEN & SONS, Ltd., and WEST, T. F. Feb. 27, 1939, No. 6367. Sample furnished. [Class 2 (iii)] Allylbenzene derivatives are isomerized to the corresponding propenylbenzenes by heating with caustic alkali, using as a diluent a glycol, polyglycol, glycol ether or polyglycol ether. Preferably a hydroxyamine, such as an ethanolamine, is also present. In examples (1) eugenol is converted into isoeugenol by heating with caustic potash and diethyleneglycol, with and without addition of triethanolamine ; (2) safrole is converted to isosafrole by heating with caustic potash, ethyleneglycol monoethyl ether, and diethanolamine, and (3) eugenol methyl ether is converted into isoeugenol methyl ether by heating with caustic potash, diethyleneglycol monoethyl ether and monoethanolamine. A sample has been furnished under Sect. 2 (5) of trans-isoeugenol ethyl ether, made from the ethyl ether of eugenol by isomerization with caustic potash in the presence of diethyleneglycol monoethyl ether and triethanolamine.
Patent GB-1492980-A (GB)
Title: Position measuring arrangements using magnetoresistance
IPC: G01D5/16
Filed: 1974-12-05
Abstract: 1492980 Measuring position electrically SONY CORP 5 Dec 1974 [12 Dec 1973] 52657/74 Heading G1N A measuring system for determining the position of a moving body having a magnetic scale 11 makes use of the magnetoresistive elements described in Specifications 1473894 and 1486238. Multiple magnetoresistance elements 40A, 40B are connected with resistors 42A, 42B to form bridge circuits supplied by sources 44A, 44B of the same frequency but 90 degrees out-of-phase. The elements are spaced at #/2 and the distance d between the groups 40A, 40B is (¢m + #) # where m =0, 1, 2, ---- The bridge outputs are amplitude-modulated according to the relative position of the elements and the magnetic scale so that by combining the bridge outputs and comparing the phase of the resultant with a reference signal, the position can be determined. Fig. 19 shows an application of the system to the measurement of the angular position of a drum 47.
Patent GB-1165042-A (GB)
Title: Composite Tubing.
Inventor: MATTHEWS RICHARD ALONZO
IPC: B05D1/30
Filed: 1966-11-24
Abstract: 1,165,042. Pipes. SAMUEL MOORE & CO. 24 Nov., 1966 [24 Nov., 1965], No. 52727/66. Heading F2P. A high pressure hose comprises a polymeric inner tube 12 and one or more reinforcing layers 18, 20, 22, 24 of closely and helically wound fibrous polymeric strands which layer or layers are axially movable relative to the inner tube. The inner tube may be of polyurethane, nylon or polyolefin such as polyethylene. As shown, the four helically wound reinforcing layers and a covering sheath 30 are bonded to one another by an elastomeric adhesive, such as a polyurethane prepolymer, to form a unitary sleeve which can slide axially on the inner sleeve. The fibrous strands forming the layers may be composed of a polyester such as alkylene terephthalate, or more specifically ethylene terephthalate, nylon or regenerated cellulose. The sheath may be of polyurethanes, nylon, polyolefins or vinyls. It is preferred that the strands of one layer are wound on the opposite hand to the adjacent layers and that the inner tube and outer sheath are extrusions. In a modification, Figs. 3 and 4 (not shown), a bearing layer 35 of polyethylene terephthalate is disposed between the inner tube and a reinforcing strand layer and is bonded to the latter. Some of the reinforcement layers of helically-wound strands may be replaced by woven or braided layers. In a further modification, Fig. 7 (not shown), the bearing layer (35b) is interposed the innermost layer of reinforcement and an additional reinforcement layer surrounding the inner tube and is bonded to the outermost of said two layers. The additional reinforcement layer may or may not be bonded to the inner tube.