baber/WOPTO huggingface dataset:
Patent GB-1490901-A (GB)
Title: Process for producing magnesium aluminate spinel
IPC: C01F7/162
Filed: 1975-09-01
Abstract: 1490901 Magnesium aluminate spinel QUIGLEY CO Inc 1 Sept 1975 [26 Sept 1974] 35995/75 Heading ClA Magnesium aluminate spinel is prepared by blending alumina ESP fines (i.e. by-product alumina dust obtained in the calcination of aluminium bearing hydrates to produce alumina) and a finely divided source of magnesia in a ratio of magnesia to alumina of from about 0À4 to 0À8, preferably in stoichiometric proportions, and heating to a temperature of at least 900 C. for sufficient time to enable complete reaction of the blend to form spinel. The blending may in a preferred process include grinding and heating above the sublimation temperature of sodium oxide to produce a spinel having a bulk density of 90% of the theoretical value and a sodium oxide content below 0À1 weight per cent. The sources of magnesia include magnesium hydroxide and the blending may be carried out in the presence of water or fluoride fluxing agents; preferred fluxing agents being cryolite or AlF 3 .
Patent GB-1056686-A (GB)
Title: Improvements in or relating to optical masers
IPC: H01S3/091
Filed: 1964-09-03
Abstract: 1,056,686. Lasers. WESTERN ELECTRIC CO. Sept. 3, 1964 [Sept. 16, 1963], No. 36057/64. Heading H1C. An optical maser operating as an amplifier of an applied light beam has a tubular active medium located between spherical mirrors 19, 21. The mirrors are spaced apart by a distance different from their radii of curvature, and the light beam is introduced into the active medium along a path inclined with respect to the active medium axis. Repeated non-interfering reflection of the light beam then takes place progressively at each mirror at points which lie along a circle or an ellipse, the effective path length of the beam thus being greatly increased before the whole circumference of the circle or ellipse is covered and interference occurs. The arrangement is stated to increase the gain by removing interference resonant peaks and by increasing the effective length between the reflecting surfaces without raising diffraction losses. The active medium may be solid, e.g. ruby, or gaseous, e.g. helium-neon, the active medium being in the form of a hollow cylinder 12 between the spherical mirrors. A gas laser is shown, the gas being contained in a space 16 between inner and outer walls 13, 14 terminated by transparent end plates 17, 18. Radio frequency pumping from a source 22 is used, the R.F. being applied between a central rod 23 and a pair of external plates 24, 26. The signal to be amplified is directed from a source 27, such as another gas laser, on to an adjustable reflector 28, and then passes along the required displacement axis through a slot 29 in mirror 19 to the active medium. A similar slot 31 in mirror 21 is provided for the output beam.
Patent GB-1194465-A (GB)
Title: Polyamine Adducts and their use in Rapid Curing Epoxy Resin Compositions
Inventor: PRESLEY WAYNE EUGENE
IPC: C08G59/40
Filed: 1968-07-29
Abstract: 1,194,465. Isocyanate amine adducts. DOW CHEMICAL CO. 29 July, 1968, No. 36078/68. Heading C2C. [Also in Division C3] Adducts are prepared from substantially equivalent amounts of (I) an organic isocyanate of formula in which R is H, a C 1-8  alkyl or alkoxy radical or the radical -NHCOOR<SP>1</SP> in which R<SP>1</SP> is a C 1-8  alkyl radical, and (II) an ethylenepolyamine where n is an integer from 0 to 15. Examples relate to adducts of phenyl isocyanate with diethylenetriamine and triethylenetetramine. The adducts are prepared by slowly adding phenyl isocyanate to the polyamine which is maintained at 25-30‹ C. Excess polyamine is removed under reduced pressure.
Patent GB-349944-A (GB)
Title: Improvements relating to talking machines
IPC: G11B33/02
Filed: 1929-11-26
Abstract: 349,944. Gramophone cases. KUCHENMEISTER, H. J., 82, Herzbergstrasse, Lichtenberg, Berlin. Nov. 26, 1929, No. 36143. Convention date, Dec. 29, 1928. Void [Published under Sect. 91 of the Acts]. [Class 40 (ii).] A record container pivoted in the lid of a gramophone is controlled by lever mechanism arranged to support the container in inclined position when the lid is open and to press it against the lid when this is closed. The lever mechanism is preferably combined with the lid stay. As shown, the record container 6 is mounted by a hinge 7 to the lid 5 mounted by hinge 8 to the case 1. A lever 9 pivoted to the lid and engaging a slot 11 in the case serves as a stay for the lid in open position, and an extension 12 of this lever serves to support the record container in inclined position when the lid is open and to press the container within the lid when this is closed.
Patent GB-343963-A (GB)
Title: Machine for developing photographic and cinematographic films
IPC: G03D3/13
Filed: 1929-11-26
Abstract: 343,963. Photographic developing. DEBRIE, A. L. V. C., 111, Rue St. Maur, Paris. Nov. 26, 1929, No. 36213. Convention date, Jan. 31. Drawings to Specification. [Class 98 (ii).] To provide different times of development for different sections of a continuous length of film, the latter is passed over a series of tanks containing in alternation developing solution and water or bromide-containing water, loops of film being extended into a number of developing tanks corresponding to the desired development and thereafter into one or more washing tanks so that the total number of tanks passed through by each section of the film is the same. Apparatus is described comprising a series of tanks into which loops of film may be depressed by pulleys.moved by rack and pinion mechanism.
Patent GB-1020300-A (GB)
Title: Phosphinyl and phosphinothioyl imides, preparation thereof, and compositions
IPC: C07F9/655
Filed: 1963-09-16
Abstract: The invention comprises compounds of formula <FORM:1020300/C2/1> where R1, R2, R3, R4, R5 and R6 represent hydrogen, C1-7-alkyl, C1-7-carbalkoxy, C1-7-haloalkyl, phenyl, (C1-7-alkyl) phenyl, nitrophenyl, halophenyl, cyanophenyl, methoxyphenyl, sulphamoylphenyl, methylthiophenyl, carbalkoxyphenyl, carbamoylphenyl, N-methylcarbamoylphenyl, benzyl or naphthyl; R7 and R8 represent C1-7-alkyl, phenyl, C1-7-alkoxy or mono- or di-(C1-7-alkyl) amino; Q and Z represent oxygen or sulphur; and n is 0 or 1, with the proviso that when R7 and R8 are alkoxy, at least one of R1 to R6 is carbalkoxy, haloalkyl, benzyl or naphthyl.  They are prepared by reacting in the presence of an acid acceptor, a compound of formula <FORM:1020300/C2/2> with X-P(Z)R7R8, X being halogen.  The compounds of Formula II may be prepared by reacting an appropriate mono- or dithiol with a cyanogen halide, preferably in the presence of an acidified alcohol catalyst. Many thiols are specified and 2-imino-1,3-dithiololane hydrochloride and 2 - imino - 1,3-oxathiolane hydrochloride are prepared in examples.ALSO:Insecticidal compositions comprise organophosphorus compounds of formula <FORM:1020300/A5-A6/1> where R1, R2, R3, R4, R5 and R6 represent hydrogen, C1-7-alkyl, C1-7-carbalkoxy, C1-7-haloalkyl, phenyl, (C1-7-alkyl) phenyl, nitrophenyl, halophenyl, cyanophenyl, methoxyphenyl, sulphamoylphenyl, methylthiophenyl, carbalkoxyphenyl, carbamoylphenyl, N-methylcarbamoylphenyl, benzyl or naphthyl; R7 and R8 represent C1-7-alkyl, phenyl, C1-7-alkoxy, or mono- or di-(C1-7-alkyl)-amino; Q and Z represent oxygen or sulphur, and n is 0 or 1, with the proviso that when R7 and R8 are alkoxy, at least one of R1 to R6 is carbalkoxy, haloalkyl, benzyl or naphthyl. Solutions and solid compositions are specified.
Patent GB-1272395-A (GB)
Title: Improvements in or relating to gas meters
Inventor: BURRETT KENNETH FREDERICK
IPC: G01F3/22
Filed: 1968-07-30
Abstract: 1,272,395. Gas meters. UNITED GAS INDUSTRIES Ltd. July 23, 1969 [July 30, 1968], No.36335/68. Heading G1R. In a gas meter one flag rod 22 is connected through an arm and pivot 4 to an arm 5 of a valve slide member 3 above a valve plate 9 and another flag rod 24, via a cranked portion 12, levers 13, 14, shaft 15 and lever 16, engages a pin 17 on the underside of valve slide member 3 to simultaneously impart to the valve slide member 3 limited rotational and translational movement.
Patent GB-1451598-A (GB)
Title: Communications equipment
IPC: H04M1/24
Filed: 1975-09-03
Abstract: 1451598 Testing apparatus for impulse transmitters V A DIRIN and A R OZOLS 3 Sept 1975 36343/75 Heading H4K The apparatus separately determines the number of impulses and the duration of the impulse makes and breaks and indicates whether the latter conform to a prescribed ratio and total duration. An inhibit logic prevents operation of the ratio determining circuit during the first impulse of any train. The circuit (Fig. 3, not shown) consists of a diode translation field fed with the impulse break length along its ordinate and the impulse make length along its abscissa, properly received impulses being effective on one of a set of transistors associated with the make length inputs. If a valid output is produced it prevents operation of an indicator lamp. The apparatus is otherwise fully described in Specification 1,442,868.
Patent GB-1162972-A (GB)
Title: Improvements in and relating to Variable Inductors
Inventor: BEDIL FAHIR
IPC: H01F29/12
Filed: 1965-08-24
Abstract: 1,162,972. Inductors. ENGLISH ELECTRIC CO. Ltd. 23 Aug., 1966 [24 Aug., 1965], No. 36409/65. Heading H1T. Variable electrical inductor 10 comprises a group 10A of coils spaced apart along an axis and connected in series and a further group of coils 1OB also spaced apart along an axis and electrically connected, the two groups of coils being relatively movable between a position in which the coils of the two groups are interleaved and one in which they are separated. The coils 10B may themselves be connected in series, and the groups of coils 10A and 1O may be connected in series or in parallel. The magneto-motive forces of the two groups may be arranged either to be additive or opposed when they are interleaved, and the coils of at least one of the groups may have ferro-magnetic cores, made up of laminations or of powdered material in a binder. Ferromagnetic limb and yoke members may be located externally of the two groups of coils, and a limb member may be movable with an adjacent group of coils. One group of coils may be movable relative to the other along an arcuate path normal to the axes of the two groups of coils. Voltage dividers made up of two inductors according to the invention, connected together, are described. They may be incorporated in tap-changing devices for transformers or reactors.
Patent GB-810885-A (GB)
Title: Process for stabilizing and reducing the viscosity of halogenated hydrocarbon resins
Inventor: HANSEN FLOYD ROBERT
IPC: C08K5/098
Filed: 1956-11-28
Abstract: Halogenated hydrocarbon resins are stabilized and their viscosity reduced by adding a compound of the general formula <FORM:0810885/IV (a)/1> where R represents a C4-20 alkyl, aryl, alkaryl or aralkyl radical, n is an integer from 1-3, M is cadmium, zinc or tin, and m is the valency of the metal M.  Typical acids whose salts may be used are 3-(2-ethyl-n-butoxy)-propionic, 3-(2 - ethyl - n - hexoxy) - propionic, (2 - ethyl-n-butoxy) - acetic, 4 - (2 - ethyl - n - hexoxy)-butyric, 3 - (diamylphenoxy) - propionic, (a -phenylethoxy) - acetic, and (b -phenylethoxy)-acetic.  The preferred concentrations are 0.1-8 per cent based on the resin. The salts may be incorporated into the resin in the solid state, or in solution or a dispersion may be mixed with a solution of the resin.  Other substances which may be present include plasticisers, extenders, fillers, pigments and auxiliary stabilizers.  In examples, a mixture of polyvinyl chloride and dioctyl phthalate is stabilized with cadmium 3 - (2 - ethyl - n - butoxy) - propionate, zinc (2-ethyl-n-butoxy)-acetate or stannous 4-(2-ethyl-n-hexoxy)-butyrate both by hot milling the solids and in the plastisol form.
Patent GB-1088361-A (GB)
Title: Improved printer
IPC: G06M3/06
Filed: 1965-08-25
Abstract: 1,088,361. Selective printing. VEEDER INDUSTRIES Inc. Aug. 25, 1965 [Aug. 25, 1964], No. 36495/65. Heading B6F. Type-wheel machines; power-assisted type Selection.- A selective printer for printing of sequential number on tickets comprises a number of axially spaced printing wheels 45 ... 51, which are concomitantly serving as a counter mechanism, and provided with radially spaced numerical characters 0 ... 9 and indexed relative to one another in a decade sequence by a ratchet and pawl mechanism 58, 60 actuated by an electromagnet 52 through associated linkage 66, 68, 62. Alignment for impression.- The printing sheets are associated with a pair of aligning star wheels 165 disposed on either side of the printing wheels and arranged for rotation therewith so that when a frame 22 carrying a shaft 42 on which the wheels are mounted rotatably is lowered for impression the star wheels 165 engage the horizontal ledges 168 of supporting fingers 164 to align the characters on the printing wheels 45 ... 51 and support them against the bias of springs 122 during impression. Hammer impression arrangements; plates with fixed matter.-A number of printing hammers 90, 92, the latter of which are arranged to print matter on the slug plate 94, are mounted in spaced alternate relationship in a bracket plate 100. The hammers are formed from a semihard synthetic plastics material and comprise tail portions 96, 98, resilient arms 134, 136 and hammer heads 130, 132 having projections 140, 142 for engagement with the printing wheel characters or the slug plate 94. The bracket plate 100 is mounted on the frame 22, which for impression is pivoted about pins 24 by rotation of handle 112 in a counterclockwise manner. The downward pivotal movement of the plate which is arrested by the fingers 164 on engagement with the star wheels 165 is effected by control cams 114 attached to two-tooth ratchets 125 which are mounted slidably on the control shaft 109 and driven by a pin 123 attached radially to the control shaft. Concomitantly with the downward movement of the plate 22 a cam section 147 integral with the control shaft 109 cocks the resilient arms 130, 132 of the hammers 90, 92 and the arms are released for impression by a radial recess 152. The hammers return to their positions on account of the resiliency of their arms. Clockwise rotation of the handle 112 causes the pins 123 to ride along the helical cam surfaces 127 of the ratchets 125 to displace the cams 114 axially out of engagements with the stops 120 and allow the frame 22 to return to its original position. Hammer interlocks,-To prevent impression of a ticket which has not been properly inserted a locking arm 160 is provided which engages the pin 123. When a ticket is pushed into its home position it rocks an end 163 of the arm 160 which releases the pin 123. Card holders.-The frame 22 is composed of two spaced plates 26, 28 a spacer 32 of a U-shape defining a recess in which the ticket is received.
Patent GB-324182-A (GB)
Title: Improvements in or relating to gas burners
IPC: F23D14/12
Filed: 1928-12-11
Abstract: 324,182. Peek, Frean, & Co., Ltd., and Aitken, R. Dec. 11, 1928. Radiants.- Means for radiating heat in biscuit-making ovens &c. comprises a tubular gas burner 3 forming part of a casing 7 extending longitudinally of the tube and adapted to be filled with a plastic mass of refractory material 4, such as a mixture of kieselguhr and asbestos which, when set, constitutes a baffle played. upon by the flame and brought to a state of incandescence.
Patent GB-1359516-A (GB)
Title: Cement products
Inventor: RIO ARTURO
IPC: C04B41/48
Filed: 1971-08-04
Abstract: 1359516 Concrete articles SOC ITALIANA PER AZIONI PER LA PRODUZIONE DI CALCI E CEMENTI DI SEGNI 4 Aug 1971 [6 Aug 1970 8 Aug 1970] 36648/71 Heading C1H Cement products made from inert aggregate material and portland cement, pozzolana cement or a mixture comprising by weight 50-90% portland cement and 50-10% of reactive siliceous materials are subjected to pre-ageing at ambient temperature, then to steam-curing at 150-250C. for 1-6 hours under pressure and finally to thermal treatment at 120-350 C. for 1-12 hours in a substantially anhydrous atmosphere. The term "reactive siliceous materials" is defined as those materials containing forms of silica which are actively reactive with lime to form compounds having cementing properties. The examples describe the preparation of concrete articles from portland or pozzolana cements and sand, basaltic or calcareous materials (some of the examples give particle size details about the aggregates). The concrete particle may be impregnated with ethylenically unsaturated polymerizable monomers, e.g. acrylic and methacrylic esters, vinyl esters and styrene, or copolymerizable monomers, e.g. mixtures of styrene and methyl methylacrylate, vinyl acetate, alpha methyl styrene, divinyl benzene or acrylonitrile or gaseous monomers, e.g. ethylene, the concrete article then being subjected to polymerization conditions.
Patent GB-321350-A (GB)
Title: Improvements in rotary engines
IPC: F01C1/34
Filed: 1928-12-12
Abstract: 321,350. Fuery, G. T., (Detachable Rock Drill Bits, Ltd.). Dec. 12, 1928. Movable-abutment type; valves, distributing and cut-off.-The admission of fluid to a rotary engine in which both a cylinder 1 and a centrally mounted drum 9 carry spring-pressed blades 14, 12 which are forced into their slots by cam projections 10, 5 on the other member is controlled by a rocking valve 22 linked to a lever 20 which has a roller 18 running in a cam 17 on a flywheel on the drum shaft. The casing and covers are dished to form lubricant spaces which are, closed by end discs on the drum 9.
Patent GB-867877-A (GB)
Title: Process for making a new type of stained-glass window, and stained-glass windows obtained by applying this process
IPC: B44F1/06
Filed: 1957-11-26
Abstract: 867,877. Pictures. MICHEL, P. Nov. 26, 1957 [Feb. 22, 1957], No. 36810/57. Class 11. [Also in Group X] A process for making a stained glass window consists of superposing several layers of stained, pattern defining, transparent or translucent material which mutually adhere to form a homogeneous mass. A support 1 has cells therein temporarily closed by elements 8. Successive layers of transparently coloured material 13, 14, 15, 16 are applied to the cells in selected parts, different colour effects being obtained by the superposition of the coloured layers. Between the coloured layers, layers of transparent colourless material can be inserted. The layers are such that they become hard at normal temperature and when set the material in each cell becomes a homogeneous mass. Any form of support which will permit the passage of light may be used.
Patent GB-1489129-A (GB)
Title: Electric motors and electric current responsive instruments
IPC: H02K16/00
Filed: 1975-09-08
Abstract: 1489129 Moving iron instruments SEIKO KOKI K K 8 Sept 1975 [9 Sept 1974 13.sept 1974 (2)] 36820/75 Heading G1U [Also in Division H2] An electric current responsive movement, e.g. for an ammeter, comprises a coil 2 and two angularly movable permanent magnets 4, 6, one of which drives a pointer over a calibrated scale, the interaction of the magnet poles returing the pointer to zero when the current in the coil is interrupted. A line joining the magnetic axes of the two magnets 6, 7, is inclined to the coil axis, thus ensuring movement of the magnets when current flows  through the coil. Various arrangements of the coil and magnets are disclosed.
Patent GB-848931-A (GB)
Title: Production of branched unsaturated ketones
Filed: 1956-12-03
Abstract: Branched unsaturated ketones are prepared by reacting an alcohol of the general formula:  <FORM:0848931/IV(b)/1> in which R is hydrogen or CH3, with a C1-5 alkyl ester of aceto acetic acid in the liquid phase at a temperature above 160 DEG  C. but below 250 DEG  C. and in the absence of a catalyst. Suitably, the alcohol is introduced into liquid aceto acetic ester, or a solution thereof in an inert solvent, heated to 170 DEG -190 DEG  C.; alternatively, a mixture of the alcohol and ester may be fed into the solvent heated to 170 DEG -190 DEG  C.  The alcohol is preferably used in excess.  In Examples: (1) 2-methyl butene-3-ol-2 is slowly added to ethyl aceto acetic ester heated at 170 DEG  C. with evolution of CO2 and a distillate of ethanol and methyl butanol, the residue then being distilled to recover 2-methyl-heptene-2-one-6 and some dehydracetic acid; (2) ethyl aceto acetate is added to the tetrahydronaphthalene heated to 175 DEG  C. and then 2-methyl-butene-3-ol-2 is added slowly and (3) a mixture of ethyl aceto acetate and 2-methyl butene-3-ol-2 is added slowly to tetrahydronaphthalene or diphenyl ether heated to 175 DEG C., a mixture of ethanol and methyl butanol distilling off in each case.  Naphthalene and decahydro naphthalene are other specified inert solvents.  Specification 695,313 is referred to.
Patent GB-1150257-A (GB)
Title: Improvements in or relating to Sheet Feeding Devices.
Inventor: LANG FRIEDRICH
IPC: B65H5/02
Filed: 1967-08-11
Abstract: 1,150,257. Feeding and aligning sheets. F. LANG. 11 Aug., 1967 [24 May, 1967]. No. 36895/67. Heading B8R. Cardboard blanks 8 are fed to a printing or other processing machine by superposed endless conveyers 2 and 1, a third endless conveyer 6 located between the flights of the conveyer 1 and having projections 7 movable along the feed path of the blanks being provided for blank alignment purposes. The speed of the conveyer 6 may be matched to that of the printing or processing machine whilst the blanks 8 are bottom fed from a stack by a vacuum device 9.
Patent GB-1485122-A (GB)
Title: Biologically active matrices
IPC: C08G69/48
Filed: 1973-08-06
Abstract: 1485122 Polymers bearing biologically active material NATIONAL RESEARCH DEVELOPMENT CORP 25 July 1974 [6 Aug 1973] 37230/73 Headings C3R and C3H A matrix (M) comprises a polymer (P) to which is linked, via amidine groups, a biologically active material (B), where (P) comprises primary or secondary amido groups, amino-substituted aromatic groups, or nitrile groups, and (B) is an enzyme, cofactor, inhibitor, antigen or antibody. (M) may be a hollow tube, with (B) on the inner surface. (P) may be polyacrylamide or homologue, nylon, or ureaformaldehyde. (M) may be made by linking (P'), a precursor of (P) containing imidate groups, to either (i) a group in (B) or (ii) to one group of a bifunctional organic compound which is subsequently linked either to (B) or to another bifunctional compound which is itself subsequently attached to (B). The imidate groups in (P') may have been produced by reaction of primary or secondary amido groups with an alkylating agent, e.g. dialkyl sulphate. Specification 1,485,123 is referred to.