baber/WOPTO huggingface dataset:
Patent GB-1450907-A (GB)
Title: Treatment of waste material
IPC: B01J8/38
Filed: 1973-12-03
Abstract: 1450907 Incinerators RHONE-PROGIL 3 Dec 1973 [5 Dec 1972] 55986/73 Heading F4B An incinerator comprises a combustion chamber A containing a first fluidized bed and a cooling chamber B containing a second fluidized bed and immersed heat exchange pipes 14, the fluidizing air being supplied to chamber A at a greater flow rate than to chamber B so that its density is less, connecting ducts 1 and 11 allowing bed material to circulate from the cooling chamber B through the combustion chamber and back to the cooling chamber. Dried refuse is fed from shoot 3 into chamber A where it is burnt, heavy residues falling down into lock 7 from which they are removed. Light ash rises with the bed material and separates from it in chamber 8, the bed material falling down duct 11 to chamber B. The combustion gases and ash pass to cyclone 9 where the ash is extracted (at 10), the hot gases going in part to a treatment chamber 16 to be scrubbed and rendered harmless before discharge, and in part to a refuse drying apparatus consisting of a tube 18 fed with wet refuse and hot gases at the bottom. The hot gases carry the lighter materials upwards to a cyclone 21, the heavier materials fall into hopper 20 from which they are removed. The cyclone 21 separates the refuse and it is conveyed by a duct to the charging shoot 3. The hot gases pass via duct 22 to the fluidizing blower 5 to be recirculated.
Patent GB-1353180-A (GB)
Title: Liquid level control means
IPC: G01F23/24
Filed: 1971-12-03
Abstract: 1353180 Maintaining level of molten glass OWENS-CORNING FIBERGLAS CORP 3 Dec 1971 [23 March 1971] 56304/71 Heading C1M [Also in Divisions G1 and G3] The level of molten glass 12, in a current carrying platinum or platinum alloy feeder 10 from which fibres are drawn, sized and gathered by units 14, 15 and stored on package 17, is maintained substantially constant. An A.C. or D.C. current, passing via tapered probe 42 through the molten glass provides a signal to level control 50, whose output controls the bias current of a saturable reactor 41 controlling the electrical energy input to a pre-melting unit 30, hence the viscosity of the molten glass 32 and correspondingly the flow in stream 33 to keep the level in feeder 10 constant. Alternatively, Fig. 3 (not shown) unit 50 controls the speed of a rotary feed mechanism 76 feeding glass marbles directly to feeder 10. Marbles 36 in hopper 35 are fed to pre-melter 30 as a function of the current supplied to it via transformer 40. The temperature in feeder 10 is stabilized by means of thermocouple 22, which, via amplifier 23 and regulator 24 controls the bias current in saturable reactor 21 in the feeder electrical supply. Level control 50, see Fig. 2 (not shown). -A.C. current through tapered probe (42) is detected by winding (T2B), a voltage proportional thereto being developed across resistor R6, a potentiometer (80) connected across the feeder 10 being adjusted so that the current through the probe (42) is zero when the probe supply via winding (T1C) is cut out. The probe signal, and a bucking voltage from winding (T1D) opposing it and adjusted so that the bucking and probe voltages are equal and opposite when the tip or a predetermined portion of the probe touches the surface of the molten glass, are fed to amplifier (0A-1), whose gain is adjustable simultaneously with the strength of the bucking voltage via ganged potentiometers (R1B, R1A), and after further amplification the resultant is fed to phase comparator (90), receiving also mains reference phase on winding (T3C), whose output, fed to amplifier (OA-3), is a D.C. voltage whose value is zero when probe and bucking voltages are equal, and varies about zero in use. Current through transistor (Q1) driven by amplifier (0A-3) controls regulator (110), which may have provision for a set point liquid level, controlling saturable reactor 41. The unit 50 may alternatively utilize D.C. signals throughout.
Patent GB-1242689-A (GB)
Title: Preparations containing an optical brightener
IPC: C11D3/42
Filed: 1968-11-28
Abstract: 1,242,689. Treating textiles. CIBA-GEIGY A.G. 28 Nov., 1968 [28 Nov., 1967], No. 56570/68. Heading DIP. [Also in Divisions C4 and C5] Dry flowable preparations, suitable for use as an additive in products for improving or clearing textile materials, consist of or contain particles of a size not exceeding 5 microns of an optical brightener having a solubility in water at 20‹C not exceeding 0.5 part by weight per 100 parts by weight of water in which the particles of the optical brightener are enclosed in an organic, water-soluble protective substance. The weight ratio of brightener to protective substance is suitably from 9:1 to 1:99. The brightener may be an aryloxazoyl thiophene, a dibenzothiaphene-5-dioxide. a coumarin derivative, a pyrazoline, or a mono- or dioxazole. Numerous examples are given. Suitable film-forming substances are polyvinylpyrrolidones, polymers of acrylic or methacrylic acid and their ester and amide derivatives, copolymers containing maleic acid or maleic anhydride, copolymers of vinyl acetate and crotonic acid, cellulose ethers, starches or sugars, shellac, casein, polysulphone resins, urea and melamine formaldehyde condensates, poly- [3,3'-methyl imino-bis-trimethylene-adipic acid amide], polybenzoxazoles, cellulose sulphuric acid esters, polyvinylpiperidones, gelatin, pectins, heparin, alginic acid, polystyrene-sulphonic acid, cyanoethylcellulose, condensates of #-naphthalene sulphonic acid and formaldehyde, and adducts of ethylene oxide and alkylphenols. The preparation is produced by evaporating a dispersion of a finely dispersed, sparingly water-soluble optical brightener in an aqueous solution of a substance capable of forming a protective film to dryness. Alternatively the dispersion is sprayed on to the dry preparation of detergents with subsequent drying. Additives include dodecylbenzene sulphonate, sodium laurylsulphonate, sodium polyphosphate, sodium sulphate, sodium metalisilicate, E.D.T.A. and C.M.C.
Patent GB-1418010-A (GB)
Title: Gas filtration apparatus
IPC: B01D46/02
Filed: 1972-12-08
Abstract: 1418010 Gas filter J B THORNE & SON LTD 8 Oct 1973 [8 Dec 1972] 56704/72 Heading BIT [Also in Division B8] An impervious bag 22, which receives solids separated from a gas stream in a filter housing 10, is maintained in an expanded state by suction created in chamber 26 by passage 24, whose end 28 cooperates with the inlet 12 to form an injection or ejection pump. Figs. 2 to 6 (not shown) illustrate alternative forms of passage 24 and its relationship with inlet 12. One filter 16 may be cleaned by periodic shaking or varying the suction applied by fan 42, or several filters in one housing may be successively backwashed while still maintaining a forward flow through inlet 12. Fig. 7 (not shown) illustrates clamping a re-entrantly folded filter between the top of housing 10 and a removable fan unit. The apparatus is used at the discharge end of a pneumatic conveyor for sugar, flour, wood shavings or sawdust.
Patent GB-1402048-A (GB)
Title: Toy cow
IPC: A63H3/31
Filed: 1973-12-07
Abstract: 1402048 Toy cows QUAKER OATS CO 7 Dec 1973 [7 Dec 1972] 56783/73 Heading A6S A toy cow has within its body a sounder 15, Fig 1, having an inlet chamber 20 (see also Fig 3) to which air is fed by squeezing a bulb 28, air pasing through a hole 32 from the inlet chamber to a sounding chamber 21 containing a vibratory reed 23 and thence through a hole 33 to an expandible pneumatic accumulator 34. A sound outlet chamber 22 surrounds the sounding chamber 21, &c. Air forced into the inlet chamber 20 as the bulb 28 is squeezed also passes through a hole 29 to a simple servo 30 which expands and acts through a link 35 to turn the cow's head 13 about its pivot 14. The effect is of the cow raising its head 13 as it moos. The toy cow can be pulled along on wheels 12 by use of the bulb 28. A two-lobed cam 41, Figs 1, 2, on the rear axle 42, engages a loop 40 on a rod 39 so that the latter is twisted back-and-forth as the axle turns. A helical coil spring 37 at the end of the rod 39 simulates the cow's tail and is shaken from side-to-side as the rod twists.
Patent GB-568643-A (GB)
Abstract: 568,643. Sleeve couplings. STANDARD TELEPHONES & CABLES, Ltd., and SEYMOUR, R. E. Sept. 3, 1943, No. 14409. [Class 38 (i)] A stop joint between the conductors 3, 4 of cable ends 1, 2 comprises a metal sleeve 9 surrounding both the conductors and a loose metal disc 10 arranged between the conductors, the whole being soldered or sweated together. The sleeve, which may have filling holes 11 for the solder, is preferably of the same diameter as the conductors, the outer layer of strands of the latter being cut away to accommodate the sleeve.
Patent GB-1331242-A (GB)
Title: Internal combustion engines combined with electric generators
IPC: F02B71/04
Filed: 1970-12-04
Abstract: 1331242 Free piston engines J H JARRET and J M B JARRET 4 Dec 1970 [5 Dec 1969] 57775/70 Heading F1B [Also in Division H2] Inductor alternators 2, 3 are located on opposite sides of the combustion chamber 1a of a freepiston internal combustion engine and have extension chambers 4, 5 at their outer ends, the assembly defining a continuous central duct in which are located a pair of linear reciprocating members of uniform diameter comprising respectively pistons 8, 8a, inductors 9, 7 of magnetic material and hydraulic pistons 10. Fuel admitted to chambers 4, 5 through inlets 13 is compressed by the pistons 10 and transmitted to the combustion chamber through central passages 10b in the reciprocating members. The stators of the alternators carrying generating windings 20, 21 and starting and exciting windings 14.
Patent GB-1201170-A (GB)
Title: Method and apparatus for molding articles
Inventor: VALYI EMERY IMRE
IPC: B22D17/22
Filed: 1967-12-21
Abstract: 1,201,170. Moulding plastic materials. OLIN CORP. 21 Dec., 1967 [23 Deo., 1966], No. 58157/67. Heading B5A. [Also in Divisions B3 and C1] A mould member having a surface defining at least a part of the desired shape of the moulded article includes a duct separated from the surface by a material impervious to a heat exchange fluid medium which is fed to an inlet passage in the duct, a heat conductive body pervious to the medium adjacent the inlet passage so that the medium flows through the body which is in heat conductive relationship with the surface. The heat exchange fluid may heat or cool the mould member. A mould member 4 of an injection mould in which the member is moved hydraulically into a moulding cavity of a fixed member and the cavity is supplied with heated plastics from an injection nozzle, comprises a number of channels 14a, 14b between which a pervious material 11 is located and joined to the mould member. Heat exchange cooling fluid is fed through the bore 13 of an inner member 12 and flows radially through passages 13b to the channels 14a and then circumferentially through the pervious material 11 to the adjacent channels 14b connected to an outlet 15a. The mould member 4 may be of steel and the pervious material may comprise sintered metallic particles.
Patent GB-1317380-A (GB)
Title: Cooling apparatus
IPC: A23G7/02
Filed: 1971-12-17
Abstract: 1317380 Cooling biscuits SOLLICH oHG 17 Dec 1971 [27 March 1971] 58705/71 Heading F4H Biscuits and like confectionary 8 are cooled on a conveyer belt 4 in the horizontal longer leg 1 of an inverted L-shaped tunnel which has at least one evaporator 10 co-operating with a compressor (not shown) of a refrigeration system in the vertical shorter leg 2 of the tunnel. At least one fan 12 is associated with each evaporator to direct air downwardly therethrough for cooling and transversely of the conveyer belt which fan or fans is arranged in the intersection of the two legs. The empty return leg of the conveyer passes outside the tunnel below the longer leg 2. The conveyer is accessible through pivotable hoods 20 and the walls are both removable and thermally insulated. Condensed moisture from the or each evaporator is removed through the V- shaped lower end of the shorter leg 2.
Patent GB-1449460-A (GB)
Title: Process for producing methacrylic acid
IPC: C07C51/00
Filed: 1973-12-27
Abstract: 1449460 Methacrylic acid ATLANTIC RICHFIELD CO 27 Dec 1973 [22 Dec 1972] 59750/73 Heading C2C Methacrylic acid is prepared by treating aqueous alkaline-earth metal methacrylate with CO 2  to form an aqueous product comprising alkaline-earth metal bicarbonate and methacrylic acid and isolating the methacrylic acid from the aqueous product by solvent extraction with an organic solvent. The aqueous alkalineearth metal methacrylate may be prepared by oxidizing methacrolein with an oxygen-containing gas in the presence of a silver catalyst and an oxidation reaction mixture comprising aqueous alkaline-earth metal hydroxide.
Patent GB-1330969-A (GB)
Title: Benzodiazepine derivatives and a process for the manufacture thereof
IPC: C07D487/04
Filed: 1971-12-23
Abstract: 1330969 Benzodiazepines F HOFFMANNLA ROCHE & CO AG 23 Dec 1971 [23 Dec 1970] 59983/71 Heading C2C Compounds of the general formula (A=CH 2 , CO; Z=O, NH, N-(C 1-7  alkyl), N- acyl; R 1 =H, C 1-7  alkyl; R 2 =H, C 1-7  alkyl, C 4-6  cycloalkylalkyl, C 1-7  alkoxy-(C 1-7  alkyl), C 1-7  hydroxyalkyl, C 1-7  aminoalkyl, C 1-7  alkylamino - (C 1-7  alkyl), di-(C 1-7  a<SP>5</SP>kyl)amino-(C 1-7  alkyl); R 3 =H, C 1-7  alkyl, C 2-8  alkoxycarbonyl; Y=(CH 2 ) 2,3  optionally substituted by C 1-7  alkyl, CH 2 Cl, CH 2 Br, C 1-7  alkoxy-(C 1-8  alkyl), di-(C 1-7  alkyl)aminomethyl; R 5 =H, halogen) are prepared by (a) cyclizing a compound of the formula (b) hydrolysing a compound of the formula (R 7,8 =hydrolysable radical(s)), or (c) reacting a compound of the formula with oxirane optionally substituted as for Y, in the presence of an acidic agent, optionally followed by introduction of R 2  and/or alkylation or acylation of compounds in which Z=NH. The preparation of 7-acetyl-5-(o-fluorophenyl)- 1,3 - dihydro - 2H - 1,4 - benzodiazepin - 2 - one and its 1-methyl derivative is described. The above compounds are sedatives, muscle relaxants and anticonvulsants, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier. Reference has been directed by the Comptroller to Specifications 1,254,736 and 1,254,737.
Patent GB-1371069-A (GB)
Title: Multi-jaw chucks
IPC: B23B31/12
Filed: 1971-12-23
Abstract: 1371069 Chucks L T MORAWSKI and J J PARKER 23 Dec 1971 [24 Dec 1970] 60001/71 Heading B3B A chuck comprises a body 18 with a plurality of bores 30 similarly inclined relative to the body axis 28 and axially shiftable actuating means, e.g. slide 54 connectible to drawbar 68 on a machine tool. A jaw rod 36 is slidable within each of the inclined bores 30 and carries a jaw 38, the jaw rods being insertable into the bores from the front of the chuck and are connected to the actuating means by being rotated through a predetermined angle about their longitudinal axes whereby interconnecting means such as notch 48 and key 62 interengage. A slot 42 in the rod is provided, Fig. 3, which allows the rod to enter the bore without engaging key 62. The key may alternatively be on the rod and the notch in the actuating means 54. Installed in the chuck, the jaw rod has limited axial and rotational movement determined by pin 52 in slot 50 in the rod. Axial movementof slide 54 is limited and rotational movement prevented by key 64. The bores 30 may extend forwardly and radially inward as shown or forwardly and radially outwardly so that the outer surface of a workpiece may be gripped.
Patent GB-1247100-A (GB)
Title: Elastomeric compositions of improved green strength
IPC: C08L9/00
Filed: 1969-12-09
Abstract: 1,247,100. Uncured butadiene polymer/ crystalline polyisoprene compositions. POLYMER CORP. Ltd. 9 Dec., 1969 [13 March, 1969], No. 60030/69. Heading C3P. The invention comprises a composition consisting of 1-25 parts by weight per 100 parts by weight of total polymers, of a synthetic crystalline isoprene transpolymer having at least 70% of its units in the trans-1,4 configuration, and 99 to 75 parts by weight per 100 parts by weight of total polymers, of an uncured elastomeric butadiene polymer. Elastomeric butadiene polymers specified are cis-1,4-polybutadiene, styrene/butadiene rubber, especially styrene/butadiene rubber that has been prepared in the presence of an organometallic catalyst. Other ingredients including vulcanizing agents, pigments, and fillers, may also be included.
Patent GB-1207259-A (GB)
Title: A device for forming constant-pitch transverse corrugations on a cylindrical workpiece
Inventor: ORTEL YVAN
IPC: B21K1/56
Filed: 1968-12-19
Abstract: 1,207,259. Swaging; making dies; making tubes. COMMISSARIAT A L'ENERGIE ATOMIQUE. 19 Dec., 1968 [28 Dec., 19671, No. 60283/68. Headings B3A and B3H. A device for forming transverse corrugations on a cylindrical workpiece 11 comprises swaging jaws 10 reciprocated rapidly, a push head 12 advanced continuously and gripping jaws 30 to allow advance only when the swaging jaws are open. The workpiece is preferably tubular and rotatably mounted by a coupling to a workholder tube 16. The tube is axially slidable in a sleeve 18 between adjustable abutments separated by a distance j equal to slightly less than the pitch of the corrugations. The tube 16 is spring-biased towards the swaging jaws. The sleeve 18 is held in a friction block or rigidly mounted on a yoke 14 of the push head 12. The gripping jaws 30 are spring-biased on to the workpiece and opened by electromagnets 34 when a pair of normally open contacts are both closed. One contact (40), Fig. 1a (not shown), is closed when the swaging jaws are open and the other contact (42) closed when the sleeve 18 is advanced a distance j relative to the tube 16. In operation the push-head is advanced slowly so that the jaws can open and close many times before the workpiece is advanced one step. The swaging jaws 10 are made from jaw blanks with smooth faces. The blanks are preferably high-grade steel which is tempered to give it a low elastic limit. The jaws are placed in the machine and a high-strength steel former with transverse grooves is placed between the jaws which are rapidly reciprocated against the former. The jaws are thus formed with grooves and are then hardened. The transversely grooved tube is preferably made from a zirconium-base alloy for containing stacks of discs of ceramic nuclear fuel.
Patent GB-1349038-A (GB)
Title: Reflex cameras
IPC: G03B17/17
Filed: 1971-12-29
Abstract: 1349038 Photographic apparatus POLAROID CORP 29 Dec 1971 [31 Dec 1970] 60458/71 Addition to 1335888 Heading G2A Spring 134 acts as a resilient connection between pivoted member 56 and a motor 66 which drives the member between a position in which film 40 may be exposed and one in which Fresnel mirror 60 and planar mirror 54 from a reflex viewing system. Return of the pivoted member to the exposure position is brought about by another spring 114, which is tensioned by the movement of the pivoted member. The two springs are concentric, and are separated by a rotatable sleeve 122.
Patent GB-1374619-A (GB)
Title: Electrophotographic process
IPC: G03G13/01
Filed: 1971-12-29
Abstract: 1374619 Multi-colour electro-photography FUJI PHOTO FILM Co Ltd 29 Dec 1971 [28 Dec 1970] 60559/71 Heading G2H An electro-photographic process comprises exposing a main photo-conductive element 12 to a multi-colour original 10 through a transparent or translucent photo-conductive element 13. The elements have different spectral sensitivities and/or are spaced by a colour filter 14 and are charged to the same polarity on their facing surfaces, so that a first latent image corresponding to one colour component of the original is formed on element 12 and a record latent image corresponding to a second colour component and in mirror relationship to the first is formed on element 13. The image on element 12 is developed using the image on element 13 as a development electrode to  reduce development in areas which will subsequently receive developer of a different colour. The process is repeated with other colour components and developers either by using the same main element 12 to form registered images thereon, or by using different main elements and transferring the developed images from them to a common receiver. Normal or reversal development may be carried out.
Patent GB-1245139-A (GB)
Title: Photographic dye developers
IPC: G03C8/18
Filed: 1968-12-30
Abstract: 1,245,139. Phthalocyanine compounds. INTERNATIONAL POLAROID CORP. 30 Dec., 1968 [28 Dec., 1967], No. 61752/68. Heading C4P. [Also in Divisions G2-G3] Phthalocyanine dyes for use as photographic developing agents contain at least one substituent comprising a phenyl radical substituted by two OH, two amino, or an OH and an amino group, said groups being ortho or para to one another, the radical optionally being further substituted. The phenyl radical may be bonded to the phthalocyanine nucleus either directly or via a linking group (e.g. a sulphonamidoalkylene, -NHCO-, aminoalkylamino, alkylenethio, aminoalkylene, aminophenylene, acyl, aminophenoxy or alkylene group). The dyes may be prepared by either (1) reacting a substituted phthalic acid, urea and a metal chloride, if necessary modifying the substituent to render it reactive, and reacting the product with a phenyl compound, or (2) chlorosulphonating, acylating or chloromethylating an unsubstituted phthalocyanine, and reacting the product with a phenyl compound. The examples describe the preparation of (1) copper phthalocyanine 4,4<SP>1</SP>,4<SP>11</SP>,4<SP>111</SP> - tetra - (hydroquinonyl isopropyl 2 - methylamino sulphonamide) by heating 4 - sulphophthalic acid, CuCl 2 , urea, H 3 B0 3  and NH 4  molybdate, and reacting the product with successively ClSO 3 H, PCl 5 , SO  2 Cl 2 , 1 - (2<SP>1</SP>,5<SP>1</SP> - dimethoxyphenyl) - 2 - methylaminopropane, and BBr 3 ; and (2) copper phthalocyanine 3,3<SP>1</SP>,3<SP>11</SP>,3<SP>111</SP> - tetra - (hydroquinoyl iso -  propylamino sulphonamide) by reacting Cu phthalocyanine with ClSO 3 H and PCl 5  to form the tetrasulphonyl chloride, condensing this with 1 - (2<SP>1</SP>,5<SP>1</SP> - dimethoxyphenyl) - 2 - aminopropane, and treating the product with BBr 3 .
Patent GB-1244899-A (GB)
Title: Cast steel
IPC: C22C38/52
Filed: 1969-12-19
Abstract: 1,244,899. Alloy steel. MITSUBISHI JUKOGYO K. K. Dec. 19, 1969 [Dec. 19, 1968], No. 62116/69. Heading C7A. High strength, high ductility cast steel comprises:- the balance, apart from impurities such as S and P, being Fe. The alloys may be aged at 450-700‹ C., austenetized at 800-1050‹ C., annealed at 600- 700‹ C., or merely welded. Use: Propellers.