baber/WOPTO huggingface dataset:
Patent GB-1487024-A (GB)
Title: Integral lens light emitting diode
IPC: H01L21/208
Filed: 1975-08-13
Abstract: 1487024 Light emitting diodes NORTHERN TELECOM Ltd 13 Aug 1975 [10 Sept 1974] 33788/75 Heading H1K [Also in Division C4] A double hetrostructure LED has at least one convex lens 29 on its surface projecting into a aperture 35 into substrate 20. The device is formed by etching hole 23 in the substrate 20 through a photoresist layer 21 or a SiO 2  mask. The layer or mask is removed and a 4 layer LED 24 is grown. The first layer 25 fills the hole and provides lens 29 when the aperture is formed in the substrate. Layer 25 may contain a plurality of lenses formed using a pluralty of holes 23. The substrate is of GaAs and the layers are of GaAlAsP : Te; GaALAs : Si; GaAlAs : P; and GaAs : Ge. Current may be confined to the portions of the LED under the centres of the lenses.
Patent GB-909861-A (GB)
Title: Improvements in or relating to decrating machines
Inventor: DAWSON DAVID
IPC: B65B21/18
Filed: 1957-10-31
Abstract: 909,861. Decrating bottles. DAWSON BROS. Ltd. Jan. 7, 1959 [Oct. 31, 1957] No. 33971/57. Class 94(1).  In order to align bottles correctly for engagement by a gripping head transferring them from a crate, a locating member comprising flared apertures is fitted to the head beneath the grippers, the bottle necks sliding into the apertures as the head descends. The member is in the form of a plate 1 with apertures 2, the sides of which flare inwards as at 3 (the contours have been omitted from Fig. 3). The plate is mounted beneath conventional grippers - 7 on pillars 6 and includes crate locating lugs 11. Other embodiments in detail, .e.g. square -apertures, are described. Figs. 5-10 (not shown).
Patent GB-1474285-A (GB)
Title: Radiation masks
IPC: G03F1/22
Filed: 1974-08-01
Abstract: 1474285 Semi-conductor devices SIEMENS AG 1 Aug 1974 [17 Sept 1973] 34025/74 Heading H1K A radiation mask has a silicon body 1 coated with a carrier layer 2 having reference marks 5 and a masking pattern 6, the carrier layer 2 being 1 to 10 Á thick and transparent both to visible light and X-rays. The carrier layer material may be polyimide resin or silicon dioxide which is thermally grown or sputtered. A further supporting layer of a polyimide resin may be provided on the oxide layer. The reference marks 5, which are gold layers, are aligned with a complementary mark 8 on a semi-conductor wafer 7 bearing a photosensitive varnish 22, using a light beam 9 and a microscope 10.
Patent GB-340091-A (GB)
Title: Improvements relating to water softening apparatus
IPC: C02F1/42
Filed: 1929-11-07
Abstract: 340,091. Softening water. UNITED WATER SOFTENERS, Ltd., PEMBERTON, R. T., and LAWRENCE, H. S., Aldwych House, Aldwych, London. Nov. 7, 1929, No. 34035/29 and 6110/30. [Class 46.] To regenerate the base-exchange material of water-softening apparatus a rigid rod or cartridge of salt is inserted into a tube or pipe and water passed therethrough to dissolve the salt and carry it to the base exchange material. The apparatus may comprise a cylinder a with base b and cap c, which may be moulded d of ebonite or like material. The base comprises an inlet passage d connected by a hose to the supply pipe and water passes from the inlet upward through a pipe e, through perforations k, and then downward through base-exchange material h and is delivered through a pipe o. The cover is provided with a cap g, through which, when regeneration is necessary, a rod f of regenerating salt is inserted into the pipe e. A hollow rod of solid salt may be used, but the salt may be in the form of grains or tablets enclosed in a suitable container having part at least of its walls permeable. Thus the container may be of openwork, or it may be of waterproof paper, the ends being closed by discs of solid salt or other soluble material.
Patent GB-734477-A (GB)
Title: Improvements in or relating to the proportionate delivery of liquids
IPC: G01F3/14
Filed: 1953-12-08
Abstract: 734,477. Proportionate mixing of liquids. ESSO AKT.-GES. Dec. 8, 1953 [Dec. 12, 1952], No. 34113/53. Class 86. [Also in Group XXIX] Two or more liquids, e.g. petrol and oil, are delivered for admixture together in predetermined proportions by apparatus comprising a cylinder block 2 arranged for rotation upon a fixed axle 1 and having sets of cylinders 3, 4, one set being provided for each liquid, the cylinders in the respective sets being radially arranged in separate parallel planes and containing pistons 5, 6 respectively, which at their ends are guided for movement in a circular path eccentric to the axle 1, each set of cylinders 3, 4 being provided with separate entry and delivery conduits 16, 17 and 18, 19 respectively disposed in the axle 1, the cylinder block being caused to rotate by the outward strokes of the pistons under the pressure of the incoming liquids, and the liquids being delivered from the cylinders into the delivery conduits by the inward strokes of the pistons. The pistons in the separate sets of cylinders are axially aligned and a bolt 7 is passed through axially aligned pistons. The eccentric guide for the pistons comprises a pair of roller-ways 10, 11 which receive rollers 8, 9 at the ends of the bolts 7. The cylinder block 2 may be connected to a computer by a shaft 25.
Patent GB-1064306-A (GB)
Title: Stabilized compositions of vinyl aromatic sulfonates
Inventor: VOLK HENRY
IPC: C07C309/28
Filed: 1965-08-10
Abstract: Aqueous solutions of alkali metal vinyl aromatic sulphonates of the formula H2C=CR-Ar-SO3M where R is CH3 or H, M is an alkali metal and Ar is a substituted or unsubstituted divalent aromatic radical, are stabilized by the addition of up to 0.6 part by weight per part of sulphonate of an alkali metal hydroxide in an amount sufficient to give a pH of at least 11. The aromatic radical may be substituted by chlorine, bromine, hydroxy, alkyl or alkoxy groups.
Patent GB-521675-A (GB)
Title: Improvements relating to rotary electrical transformers of the kind known as metadyne transformers
IPC: H02K47/16
Filed: 1938-11-24
Abstract: 521,675. Rotary transformers. NEWSAM, H., TUSTIN, A., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Nov. 24, 1938, No: 34251. [Class 35] In a metadyne transformer the windings' are so arranged that the flux due to the combined action of the primary current in the rotor winding and the primary coils in the stator is mainly concentrated in half the stator poles, and that due to the secondary current in the rotor winding of the secondary coils on the stator in the other half of the poles, the regulator winding being placed on the first set of poles only and the variator winding on the second set only. Fig. 11 shows an arrangement in which the primary stator windng S' is arranged on the poles B, D so as to oppose the flux due to the primary rotor current and concentrate it in the poles A, C; similarly the secondary winding S<SP>2</SP> is placed on the poles A, C and concentrates the flux due to the secondary rotor current in the poles B, D. The regulator winding R is placed on the poles A, C and the variator winding W on the poles B, D.
Patent GB-847086-A (GB)
Title: Improvements in or relating to clocks
IPC: G02B13/04
Filed: 1956-11-09
Abstract: 847,086. Electric clocks. SONOBE, S., ISHIKAWA, K., and NAMIKI, Y. Nov. 9, 1956 [Nov. 12, 1955; Dec. 30, 1955; Jan. 28, 1956], No. 34326/56. Class 139 In an electric clock a D.C. motor 1 drives the going train and is connected to the escapement 5 through a spring 3. A pinion 19 in the going train meshes with a gear 20 on a spindle 11 which through a clutch 12, 13, 14 winds a spring 15 connected through gearing to an alarm, striking or chiming mechanism 10. When the spring 15 is fully wound the clutch 12, 13, 14 slips, the arm 14 being held against a pin 17, Fig. 2, fixed to the then stationary gear 16 until, upon release of the mechanism 10, the gear 16 is rotated by spring 15 to drive the mechanism 10.
Patent GB-1030943-A (GB)
Title: Polymerization process
IPC: C08F279/02
Filed: 1964-08-21
Abstract: A mixture comprising a monovinyl aromatic compound, a linear polybutadiene rubber and a chain regulator are prepolymerized with agitation to obtain a conversion of from 10 to 45% polymeric material, and the resulting reaction product mixture is then subjected to a second polymerization step to obtain substantially complete conversion to polymeric material, additional chain regulator being added in at least one separate increment. Preferred chain regulators are aliphatic and aromatic mercaptans, a number of which are listed and of which t-dodecyl mercaptan is exemplified. Other specified chain regulators are carbon tetrachloride, fluorene, cumene or organic disulphides. The prepolymerization may be a bulk or a solution polymerization process and the second polymerization a bulk solution or suspension, especially aqueous suspension, process. In the examples, the monovinyl aromatic compound is styrene present as the sole monomer or with acrylonitrile or methyl methacrylate as comonomers.  In addition to diluents up to 5% of other additives such as initiators, lubricants and antioxidants may be included in the polymerization mixture.
Patent GB-655361-A (GB)
Title: Process and means for manufacturing paraffined paper bags
IPC: B29C65/18
Filed: 1947-12-29
Abstract: 655,361. Making paper bags. HOLTERMAN, G. A. Dec. 29, 1947, No. 34367. Convention date, Jan. 10. [Class 94(ii)] [Also in Group VIII] In the manufacture of bags from paper which is paraffined over at least one of its surfaces, an adhesive being provided between the paraffined contacting surfaces of a transverse and overlapping bottom fold of the bag, and the fold being sealed by means of heat and pressure, the bags, with the bottom fold supplied with adhesive and lying at the outside, are separately supplied on a moving surface and are then inserted between two co-operating moving surfaces, one of which is provided with one or more heating elements, in such a manner that either fold will be pressed against a heating element. As shown, a bag is made from a blank cut from a paper strip 14, Fig. 3, paraffined on one side except along the margin 15. The sides of the blank are folded and edge 15 is secured by paste or similar adhesive to the non- paraffined outside of the blank. The paraffined bottom flap 13 is now folded over on to the non-paraffined bottom edge 13<SP>1</SP> of the folded sides, which has been covered with paste, and the folded blank is fed by a cylinder 9, Fig. 2, between a rotating cylinder 1 and an endless pressure belt 7 so that the edges 13, 13<SP>1</SP> register with and are pressed against an electrical heating element 3 in the surface of the cylinder 1, whereby the paraffin on edge 13 is melted away and the edges 13, 13<SP>1</SP> secured together by the paste. The finished bag is carried from cylinder 1 by a cylinder 10 to a collecting table 11.
Patent GB-1035298-A (GB)
Title: Improvements in or relating to baths and fittings therefor
IPC: E03C1/232
Filed: 1964-06-11
Abstract: 1,035,298. Baths. IDEAL-STANDARD Ltd. June 11, 1965 [June 11, 1964], No. 24375/64. Heading A4N. A domestic bath with tub 1 formed with integral base 2 and side walls 3-6 and overflow opening 12 and an opening for a waste fitting has one side wall 3 formed with a recess 8 which on installation of the bath receives a combination water control fitting 9 secured to a wall or other support. The overflow and waste fitting, Fig. 13, has a plug 40 operated by a lift rod 55 and rocking element 57, the rod 55 carrying a weight 62 and having a notch 61 to engage strainer element 53 and retain it in raised position when desired.
Patent GB-1220003-A (GB)
Title: Apparatus for centering an endless belt
IPC: B01D33/04
Filed: 1969-07-09
Abstract: 1,220,003. Guiding an endless filtering belt. SOC. FIVES LILLE-CAIL. 9 July, 1969 [9 July, 1968], No. 34566/69. Heading B1D. [Also in Division B8] An endless filtering belt passes from roller 14 to roller 10 and is supported therebetween by a plurality of endless rubber or plastics bands 16 running in grooves 18, 20, rubber 10 being mounted in fixed bearings 12 while roller 14 is mounted in bearings 22 on pivotable arms 24 so as to move axially as the edges of the belt press flanges 28 sideways, the bands 16 restoring the belt to its centred position on and downstream of roller 10. Bands 16 may be parallel or diverge from roller 10 to roller 14. Flanges 28 are adjustable on roller 14, and rollers 32, 34 tension bands 16 (Fig. 2, not shown). Instead of arms 24, a hollow roller 14 could be slidable axially of a fixed shaft.
Patent GB-765897-A (GB)
Title: Production of resin-impregnated porous bodies
IPC: B27K3/15
Filed: 1954-11-30
Abstract: 765,897. Proofing against chemicals; treating wood; resin-impregnated paper. DOW CHEMICAL CO. Nov. 30, 1954 [Jan. 25, 1954], No. 34719/54. Classes 96 and 140. A method of resinifying a solid porous body comprises permeating the body with a gaseous strongly basic nitrogen compound, impregnating the body, containing the basic nitrogen compound, with a non-resinous liquid mixture containing an aldehyde and another constituent or other constituents and capable of undergoing a chemical condensation reaction in the presence of the basic nitrogen compound as a condensation catalyst to form a solid resin, and maintaining the impregnated solid porous body at a reaction temperature until a resin is formed therein. The treatment renders the bodies resistant to chemicals, e.g. acid solutions and acid fumes. Specified basic nitrogen compounds are ammonia, methylamine and dimethylamine, which may be used in admixture with inert gases or vapours such as nitrogen or water vapour. Specified resin-forming liquids are solutions of phenol, cresol, chlorophenol and urea together with formaldehyde; of furfuraldehyde and phenol; and of furfuryl alcohol, phenol and formaldehyde. The solvent may be water, methanol or ethanol. Specified solid porous bodies are wood, paper, cardboard, concrete and bricks. Prior to the application of the basic gaseous nitrogen compound, air may be removed from the solid porous body. Impregnation with the basic gaseous nitrogen compound and the resin-forming liquid may be carried out under pressure. The body, impregnated with the resin-forming liquid, may be maintained under pressure with air, nitrogen or other inert gas during the resin-forming reaction and may also be heated. Examples describe the treatment of wood with gaseous ammonia and an aqueous solution of phenol and formaldehyde. Wooden fan propeller blades so resinified are resistant to hydrogen chloride fumes.
Patent GB-1147036-A (GB)
Title: Improvements in flying machines
IPC: B64C33/02
Filed: 1966-08-03
Abstract: 1,147,036. Man-powered aircraft. G. E. BOOTH. 25 Jan., 1967 [3 Aug., 1966], No. 34783/66. Heading B7G. A man-powered aircraft comprises a cycle frame 1 having front and rear wheels 2, 3 and provided with pivoted supports 5 for flapping wings 6. A pedal-driven mechanism 7 carries sprocket wheels 8 which drive through chains 11 the rear wheel 3 and a pair of transfer bevel gears 13, 14 to drive through gears 15, 16, 18, 19 a forward propeller 17 and, through further oval wheels 22 which engage channel guide members 24, a pair of flapping wings 6.
Patent GB-1434419-A (GB)
Title: Rope rollers
IPC: B65H57/14
Filed: 1973-07-20
Abstract: 1434419 Guide rollers for haulage ropes R B BOLTON 8 July 1974 [20 July 1973] 34821/73 Heading B8B A guide roller for a haulage rope has a boss at each end, formed with a pair of spiral helical grooves 10, 12 which cross each other to feed back on to the cylindrical centre portion of the roller, any rope which has laterally departed therefrom, irrespective of the direction of movement of the rope. Upstanding projections, in the form or ridges 28 extending transversely of the grooves 10, 12, or in the form of studs, facilitate frictional grip between the rope and boss to ensure that the moving rope, having departed from the roller cylindrical portion, rotates the boss causing the rope to be fed along the spiral helical groove back on to the cylindrical portion. Each groove 10, 12 starts at a common point 16 of minimum radius at the outer end of the boss, and diametrically opposite the point 16 the two grooves cross over each other at a point 18 and continue up to their maximum radius which is just above the surface of the cylindrical portion of the roller.
Patent GB-1398151-A (GB)
Title: Polyurethane foams containing polyalkylene glycol alkyl polyphosphites and phosphonate derivatives thereof
IPC: C08K5/524
Filed: 1972-07-26
Abstract: 1398151 Polyalkylene glycol phosphites and phosphonate derivatives thereof STAUFFER CHEMICAL CO 26 July 1972 [26 July 1971] 34896/72 Heading C2P [Also in Division C3] Phosphite esters of the formula wherein R 1  is an alkyl group, R is the residue of a polyalkylene glycol HO-(R<SP>11</SP>O) m -H where R<SP>11</SP> is a C 2 -C 20  alkylene group, m is the number of repeating units, normally 2 to 20, and n is a number from 2 to 50, and which have an OH number below 200 are obtained by transesterifying a tertiary phosphite ester P(OR 1 ) 3  with a polyalkylene glycol HO(R<SP>11</SP>O) m H as defined above, the phosphite triester being used in an amount of 1À0 to 1À5 moles per mole of the glycol, The transesterification is completed when two moles of the alcohol (R 1 OH) (e.g. methanol) are evolved. The products may be reacted with less than a stoichiometrically equivalent amount of a halohydrocarbon, especially a carbon tetrahalide, e.g. CCl 4  or CBr 4 , to give a phosphitephosphonate derivative of the formula wherein R 1  is alkyl, R is as defined above, R 2  is an alkyl group optionally substituted with (y-1)X atoms where X is a halogen atom and y is 1 to 4, and n<SP>1</SP> and n<SP>11</SP> are numbers each being greater than 0 and the sum of n<SP>1</SP> and n<SP>11</SP> being from 2 to 50. Examples are given for the reaction of tripropylene glycol with triethyl phosphite and dipropylene glycol with trimethyl phosphite to give products of type (I) and for the reaction of CCl 4  with a product obtained by transesterifying dipropylene glycol with trimethyl phosphite to give a product of type II. The products I and II are useful as reactants with polyisocyanates (optionally in admixture with other polyols) to form flame-retardant polyurethane foams.
Patent GB-1018983-A (GB)
Title: Improvements in or relating to disazo disperse dyestuffs
IPC: D06P1/12
Filed: 1963-09-04
Abstract: The invention comprises disazo disperse dyes having the general formula <FORM:1018983/C4-C5/1> wherein R1 and R2 each represent a hydrogen atom, alkyl radical, alkoxy radical, halogen atom or nitro radical, R3 and R4 each represent a hydrogen atom, alkyl radical, alkoxy radical or halogen atom, R5 represents a hydrogen atom, halogen atom or alkyl radical and nuclei A and B each represent a benzene or naphthalene nucleus.  The dyes are produced by diazotizing an appropriate monoazo-amino compound and coupling with an appropriate 4-hydroxy-11,21-benzo-carbazole derivative.  The dyes are particularly suitable for colouring fibres, films and filaments of polyolefines, e.g. polyethylene and polypropylene. Examples are furnished.
Patent GB-1397628-A (GB)
Title: Naphthaleneazo compounds and their photographic use as colour couplers
IPC: G03C7/333
Filed: 1972-07-26
Abstract: 1397628 Naphthaleneazo colour couplers KONISHIROKU PHOTO INDUSTRY CO Ltd 26 July 1972 [27 July 1971] 34995/72 Heading C4P [Also in Divisions G2 and C2] Novel colour couplers of the formula (where n is 1, 2, 3 or 4; m is 0, 1 or 2; and R is an optionally substituted phenyl group or an alicyclic group) are prepared by diazotizing appropriately 2-substituted anilines and coupling with appropriately N-substituted 1-naphthol - 2 - carboxylic acid amides. They may be dissolved in organic liquids of Group above 150 C. and incorporated in light-sensitive silver halide emulsions for use in the formation of photographic elements for use in colour photography.
Patent GB-1063873-A (GB)
Title: Optical measuring apparatus
Inventor: MOORE ARTHUR CYRIL
IPC: G02B27/30
Filed: 1962-09-14
Abstract: 1,63,873. Testing parallelism of surfaces. MINISTER OF AVIATION. Dec.13, 1963 [Sept. 14, 1962], No.35122/62. Heading G2J. Apparatus comprising an autocollimator 1 and a right angle prism 2 is used to test the parallelism of the surfaces 4 and 5 of the cylinder 3 which is mounted on two pairs of uniform balls in a cup. The autocollimator is calibrated to give the angular deviation between the surfaces 4 and 5 from the displacement between their images. To avoid spurious reflections a mask 6 containing holes 7 and 8 for the light beam can be inserted in front of the prism. A modified mask (6A) may be used which contains additional holes (9) and (10) Fig. 3 (not shown) used to test the accuracy of the right angle of the prism.
Patent GB-325035-A (GB)
Title: Improved garment support
IPC: A47F5/06
Filed: 1928-11-29
Abstract: 325,035. Stephany, L. Nov. 29, 1928. Stand hends. - A display stand for garments consists of a pair of pivoted arms 4 arranged on a common pivot pin 5, carried by a telescopic pedestal 1. The pivoted ends of the arms are provided with flat circular plates 6 through which the pivot pin 5 passes, the plates being clamped together, to hold the arms in the desired position, by a screw 7. The free ends of the arms are provided with oval &c. pads 9, which may be rotatable, to receive the shoulder straps or shoulders of the garment supported. In the construction shown, the pivot pin 7 is carried by an extension piece 8, screw connected with the telescopic pedestal 1, which may have an adjustable sleeve 10 upon which a frame member, for supporting the inner portion of the garment, may be supported.
Patent GB-323474-A (GB)
Title: Process for the manufacture of hormones
IPC: A61K38/24
Filed: 1928-06-27
Abstract: 323,474. I. G. Farbenindustrie Akt.- Ges. April 26, 1928, [Convention date]. Divided on and addition to 295,680, under which a Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 18, 1928. Medicines for internal use.-A crude precipi-- tate of the hormone of the anterior lobe of the hypophysis, obtained from urine of pregnant women by addition of alcohol, acetone or the like in accordance with the parent Specification, is purified in accordance with either of two examples, in which-(1) a crude precipitate obtained by addition of alcohol to concentrated urine is extracted with weakly alkaline water and the solution obtained treated with an equal. quantity of alcohol to precipitate impurities, leaving the hormone in solution; this procedure is repeated and the solution is then concentrated. to a syrup which is dried in vacuo over calcium chloride and subsequently ground with absolute alcohol to a powder; (2) a precipitate obtained from concentrated urine by addition of acetone is dissolved in water, treated with alcohol to precipitate impurities, and the solution further purified by fractional precipitation with alcohol,. acetone, or the like.
Patent GB-431935-A (GB)
Title: Improved blasting charge
IPC: F42B3/06
Filed: 1933-12-15
Abstract: 431,935. Blasting-cartridges. TAYLOR, J., 7, Winton Circus, Saltcoats, Ayrshire, and IMPERIAL CHEMICAL INDUSTRIES, Ltd., Millbank, London. Dec. 15, 1933, No. 35398. Drawings to Specification. [Classes 9 (i) and 9 (ii)] Relates to blasting-cartridges of the kind comprising a gas generating charge in a pressure resistant casing adapted to vent the gases at a certain pressure, for example by the shearing of a disc or the opening of a valve. According to the invention, the charge consists of a mixture of an alkali metal nitrite with one or more ammonium salts, which may be in powder or granular form and may include small amounts of other ingredients such as moisture, borax, mineral jelly, and sodium carbonate or ammonium carbonate or commercial ammonium carbonate. Suitable ammonium salts are the chloride, sulphate, nitrate, oxalate, thiocyanate, and mono- and di-phosphates, and ferrous ammonium sulphate. The mixture may be enclosed in a wrapper of fireproof paper, and its decomposition may be initiated by the safety device described in Specification 431,950 or by a small charge of powder. The Provisional Specification also refers to Specification 430,258.