baber/WOPTO huggingface dataset:
Patent GB-1044599-A (GB)
Title: Improvements in or relating to pipe joints
IPC: F16L23/08
Filed: 1965-03-19
Abstract: 1,044,599. Pipe joints. RAMEN CORPORATION A.B. March 19, 1965 [March 20, 1964; May 29, 1964], No. 11914/65. Heading F2G. [Also in Division E2] . In a joint comprising opposed flanges 5, 6 having adjacent faces provided with annular grooves 7, 8 for a compressible sealing ring 9 and back faces 10, 11 which are frusto-conical for engagement by a split, clamping ring 12, the volume of the ring 9 in the free state thereof is greater than the volume of the grooves, and the flanges are forced together so that they are in close contact with each other at least outside the grooves, the compressed sealing ring completely filling the grooves 7, 8. The ring 9 may be round or square in cross-section, and the ring 12 may engage the flanges linearly by sharp or rounded edges. The grooves may be positioned so that the material of the ring 9 protrudes into the interior of the joint.
Patent GB-113915-A (GB)
Title: Improvements in Carburetters for Internal-combustion Engines.
Inventor: WATSON GEORGE WALLACE
IPC: F02M9/02
Filed: 1917-08-20
Abstract: 113,915. Watson, G. W. Aug. 20, 1917. Spray carburettors.-In a carburettor having a main and a pilot nozzle, the pilot nozzle k is located in the conical base of a hollow sliding piston throttle-valve g and is so located that, when the throttle is closed, the pilot nozzle is seated on the main nozzle d. The fuel then issues into the interior of the throttle valve g, is mixed with air entering by a port l and controlled by a valve m, and the mixture issues through a port n in the wall of the valve to the induction pipe q. The throttle valve is actuated by a Bowden wire h, is loaded by a spring i and is prevented from rotating by a pin j engaging a slot therein. The main air supply enters through ports o.
Patent GB-909156-A (GB)
Title: Improvements in belt conveyors
IPC: B65G39/16
Filed: 1961-04-04
Abstract: 909,156. Idler rollers for endless conveyers. GOODMAN MANUFACTURING CO. April 4, 1961 [April 5, 1960], No. 12008/61. Class 78 (1). In a troughing idler assembly, the inner ends of dead shafts 30, 32 of two wing rollers 24, 26 are connected to the shaft 28 of the centre roller 22 by links 34, 36 of which the pivotal axes 38, 40 and 44, 46 are inclined downwardly in the direction of travel 42 of the conveyer belt 16. The assembly thus assumes an attitude in which the outer ends of the wing rollers are canted forwardly relative to the direction of belt travel. The degree of cant varies as the load on the belt increases and decreases, and the attitude of the wing rollers has a centring effect on the belt. The outer ends of the shafts 30, 32 are connected to side ropes 8 by links 52, 54 and clamps 48.
Patent GB-1255265-A (GB)
Title: Superconductors coils
IPC: H01F6/06
Filed: 1969-03-06
Abstract: 1,255,265. Superconductor coils. SIEMENS A.G. 6 March, 1969 [6 March, 1968], No. 12020/69. Heading H1P. A superconductor coil comprises at least two coaxial series connected disc windings, each winding being made up of a plurality of turns of a composite strip conductor comprising a plurality of filamentary superconductor cores embedded in stabilizing metal connected in parallel at the coil ends but insulated from one another along their lengths, each electrical loop defined by two of the superconductor cores and their mutual end connecting points being arranged so that substantially no net radial magnetic flux links the loop as a whole. This arrangement ensures that when the radial magnetic flux components vary, on energization or de-energization of the coil, substantially no current is induced in the electrical loop. In a first embodiment, Fig. 1 (not shown), a plurality of coaxial disc coils are wound with a composite strip in such a manner that each filament of the strip occupies the same relative position in the turns of each coil, alternate coils are wound from the inside outwards and from the outside inwards, and the alternate coils are wound in opposite directions so that when energized they produce aiding axial magnetic flux components. In a modification, Fig. 2 (not shown), the coils are wound in such a manner that the relative positions of the filaments are transposed in those of the inter coil connections which are located at the outer faces of the coils, except for that connection which crosses the plane of symmetry of the coil. In a second embodiment, the individual stabilized conductors are wound helically round an armouring ribbon to form the composite strip which is then wound to form a plurality of disc coils. As shown, Fig. 5, a plurality of conductors 51, 52, each comprising a filament 50 of superconductor material such as Nb-Zr coated with a sheath 53 of a stabilizing metal such as Cu and insulated by a wrapping 54 of glass fibre are wrapped helically round a non- magnetic steel armouring ribbon 60 provided with oblique grooves 61 to aid coolant penetration. The composite strip is wound to form disc windings together with a further grooved non- magnetic steel ribbon 55. Insulating crosspieces 56 may be arranged between adjacent disc windings to take up axial forces on the coil. The stabilizing metal may also be Al in which case the armouring ribbon may be of an Alalloy. The stabilized conductors may be insulated by means of oxide layers.
Patent GB-1014048-A (GB)
Title: Gas-generating compositions
IPC: C06B29/08
Filed: 1964-03-20
Abstract: Oxalohydroxamic acid, for use as a coolant in a gas-generating composition (see Division C1), is precipitated when diethyl oxalate is added to a solution of hydroxylamine prepared by adding a solution of sodium in ethanol to a solution of hydroxylamine hydrochloride in methanol and filtering off sodium chloride.ALSO:A gas-generating composition comprises a perchlorate oxidizer, a combustible resinous polymer fuel binder, and from 10 to 60% by weight of a coolant comprising a hydroxamic acid, an ammonium salt or substituted ammonium salt of such an acid, a hydroxamic compound having an oxime or amide group, or hydroxyl ammonium oxalate.  Specified hydroxamic acid derivatives are oxomalonohydroxamic acid, oxalohydroxamic acid amide, diammonium oxalohydroxamate, azodiformo-hydroxamic acid, oxalohydroxamic acid, triformohydroxamyl amine, monoammonium oxalohydroxamate, oxalomonohydroxamic acid, and oximidomalonohydroxamic acid.  The preferred oxidizer is ammonium perchlorate, but sodium, potassium, and lithium perchlorates are also referred to.  The binder may be a polyester (especially carboxy-terminated), polyester-polyurethane (especially thiol terminated), polyurethane, polycarbonate, polyacrylate, polyepoxide, polyamide, polysulphide, polyalkylene, or polyacrylamide; the polymer may be nitrated.  Other optional ingredients are alkyl phthalates as plasticizers, carbon black as a darkening agent, potassium sulphate as a ballistic agent, and dinitrotoluene as a hygroscopicity inhibitor; combustion catalysts specified are metal oxides, chromates, dichromates, iron and cobalt dicyclopentadienyl, ferric and cobalt acetyl acetonate, copper phthalocyanine, and nitro cellulose.  The ingredients are mixed, a curing agent for the resin being finally added, and the mixture cast or extruded into a gas-generating engine where it is cured. The compositions may be used for operating mechanical devices, for example in starters for turbine and jet engines.
Patent GB-1339923-A (GB)
Title: Valve operable to allow flow of a fluid under pressure
IPC: B60R21/26
Filed: 1971-04-29
Abstract: 1339923 Crash restraint bags NISSAN MOTOR CO Ltd 29 April 1971 [30 April 1970] 12059/71 Heading B7B [Also in Division F2] A valve 10 for controlling the flow of liquefied gas under pressure from inlet 17 to an outlet 19 leading to an inflatable crash bag 41, in a vehicle, has a closure member 13 pivoted at 29 and normally maintained against seat 12 by magnetic attraction applied at 23, 27 to toggle linkage 21, 22. In one embodiment, core 23 releases the toggle linkage when solenoid coil 24 is deenergized by opening of switch 16, whereas in another embodiment the core is a permanent magnet which is demagnetized following energization of coil 24 by closure of switch 16. The switch can be operated manually or by a crash sensor 43. Buffer 32 arrests the toggle linkage upon opening of the valve.
Patent GB-161846-A (GB)
Title: Improvements in closet seats and lids
IPC: A47K13/00
Filed: 1920-05-01
Abstract: 161,846. Rivett, S. J. May 1, 1920. Closet seats and seatlids are stamped, blocked, or both stamped and blocked out of sheet metal. Figs. 1 and 3 show appropriate cross-sections for seats and Fig. 5 for a lid. Specifications 21518/12 and 23673/14 are referred to.
Patent GB-1352088-A (GB)
Title: Processes for producing ethylene copolymers
IPC: C08F10/00
Filed: 1972-03-15
Abstract: 1352088 Ethylene copolymers SUMITOMO CHEMICAL CO Ltd 15 March 1972 [16 March 1971 [21 June 1971] 12099/72 Heading C3P Mixtures of 5 to 99À95 parts by weight of ethylene, 0À05 to 95 parts by weight of at least one unsaturated glycidyl monomer and up to 50 parts by weight of one or more other unsaturated monomers are copolymerized at 40 to 200‹ C. and at least 500 kg/cm<SP>2</SP> in the presence of a free radical catalyst and a modifier selected from ethane, propane, propylene, butene-1 and isobutylene. The glycidyl monomer may be an ester, ether or epoxidized hydrocarbon. The other monomer may be an unsaturated hydrocarbon, a vinyl, acrylic, methacrylic, or maleic ester, vinyl halide, vinyl ether, vinyl lactam, acrylamide or maleic anhydride. The catalyst may be oxygen or a peroxide or azo compound. The copolymers may be blended with polyolefins and with reinforcing materials such as glass fibres, powders or beads. Examples describe the copolymerization of ethylene with glycidyl methacrylate in the presence of propylene, with glycidyl acrylate in the presence of butene-1, with allyl glycidyl ether in the presence of iso-butylene, with glycidyl methacrylate and vinyl acetate in the presence of ethane, propane and propylene, with glycidyl aorylate and methyl aorylate in the presence of butene-1 and with allyl glycidyl ether and ethyl acrylate in the presence of isobutylene using as catalyst t.butyl per-2-ethylhexanoate and caprylyl peroxide.
Patent GB-761761-A (GB)
Title: Microwave filters
IPC: H01P5/18
Filed: 1953-05-01
Abstract: 761,761. Microwave filters. STANDARD TELEPHONES & CABLES, Ltd. May 1, 1953 [May 8, 1952], No. 12110/53. Class 40 (8). A microwave filter in a transmission line of the strip type described in Specifications 704,050, 708,601 and 761,764, comprises susceptive obstacles spaced to form resonant sections. The transmission line comprises a " line " conductor 1 spaced from a relatively broad " ground " conductor 2 by a layer of dielectric 3, a small fraction of a quarter wavelength thick. The obstacles comprise conductive posts 4, 5, 6, 7, 8, 9 shunting the line and spaced in pairs by a resonant distance l, each resonant section being coupled either directly or by a #/4 transformer section to the next. The posts are soldered in oversized holes 16 in the line conductor 1 and are adjusted to position before the solder solidifies, the usual measuring techniques being used to determine the reflection coefficient. Alternatively, each section may be tuned by means of a screw 17, Fig. 6, which penetrates into the dielectric layer 3. Other methods of tuning comprise varying the width of the " line " conductor between the obstacles, providing the line with lugs which may be adjusted by clipping or soldering a small piece of wire across the line in an adjusted position. Each single posts 4, 5, &c. may be replaced by a pair of posts located opposite each other near the edge of the line conductor. In other arrangements the pairs of posts are staggered with respect to each other or are replaced by rows of posts extending across the line. Figs. 16, 17, 18 show a filter having " line " and " ground " conductors 1, 2 of the same width and the susceptive obstacles in the form of irises 51, 52. The filter is tuned by means of adjustable irises 54, 55 located in the resonant sections. Fig. 11 shows a filter having two resonant sections 31, 32 defined by posts 27 separated by a #/4 transformer section. The sections are tuned by threaded posts 37. Throughout the length of the filter the solid dielectric layer 3 is discontinued and the spacing of the conductors 1, 2 is reduced. In order to achieve correct matching of the filter to the line the air space d<1> is related to the dielectric thickness d by the expression d<1>=d/##, where # is the dielectric constant. In a modification, the conductors are spaced by a foamed plastic dielectric throughout the length of the filter. Specification 761,763 also is referred to.
Patent GB-823553-A (GB)
Title: Improvements in record-bearing members for accounting machines and the like
IPC: G06K19/02
Filed: 1956-04-23
Abstract: 823,553. Statistical record cards or tapes. INTERNATIONAL BUSINESS MACHINES CORPORATION. April 23, 1956 [April 21, 1955], No. 12300/56. Class 106 (1). [Also in Group VIII] Record cards or tapes for use in statistical machines are made from a layer of plastic backed on both sides with paper. The plastic is polyvinyl chloride and the backing paper is glued to it. The thickness of the plastic layer is about half that of the whole card or tape. The plastic or the backing or both may be transparent or translucent.
Patent GB-830396-A (GB)
Title: Improvements in or relating to two-motion selector switches
Inventor: RATHBONE FREDERICK WILLIAM
IPC: H01H63/04
Filed: 1957-04-15
Abstract: 830,396. Electric selectors. POSTMASTER GENERAL. June 20, 1958 [April 15, 1957], No. 12309/57. Class 40 (4). A wiper mounting assembly for a two-motion selector switch comprises a block 1 carrying the wipers 7 for engaging vertical bank contacts, the block 1 freely enclosing a collar 2 carried by the shaft or tube, whereby the block moves vertically with the shaft or tube but permits the shaft or tube to rotate with respect to the block. The block 1 comprises two parts 3 and 4 held together by projections 17, 18 engaging recesses 19. The collar likewise comprises two parts 2A, 2B held together by hinge and hinge-pin 11, 12 and bolt 13. The collar may alternatively be made integrally with the shaft or tube. Specification 830,395 is referred to.
Patent GB-289807-A (GB)
IPC: C09B1/515
Filed: 1928-04-27
Abstract: 289,807. I. G. Farbenindustrie Akt.- Ges. May 2, 1927, [Convention date]. Grant of Patent opposed. Hydroxyalkylaminoanthraquinones are prepared by the action of hydroxyalkylamines on quinizarin or leuco-quinizarin or their substitution products, or on a negatively substituted anthraquinone. The products may be sulphonated, or esterified with sulphuric acid. The bases are dyes for cellulose acetate, while their sulphonic acids are acid wool dyes. When the anthraquinones are employed as starting materials, hydrosulphite may be added. In examples, #- hydroxyethylamine is condensed with alpha-chloranthraquinone, quinizarin, leuco-1 : 4 : 5 : 8- tetrahydroxyanthraquinone, and with 1 : 4 : 5- trihydroxyanthraquinone with the addition of hydrosulphite to the reaction mixture. Specifications 11930/09, 26336/10, and 275,636 are referred to.
Patent GB-1056967-A (GB)
Title: Apparatus for correcting timing errors in signals containing periodic components
IPC: H04N5/95
Filed: 1965-03-24
Abstract: 1,056,967. Delay circuits; television. FERNSEH G.m.b.H. March 24, 1965 [March 24, 1964], No. 12437/65. Headings H4F and H4R. Apparatus for equalizing the timing of two signals having periodic components, comprises a device for counting elementary time intervals occurring between like events in the two signals and utilizing the resulting count to control the delay time introduced into one of the signal paths so that the like events are synchronized. The described embodiment is used to synchronize a complete composite television signal from a magnetic recording equipment, applied to terminal 3 in the drawings, with a train of line frequency synchronizing pulses from a master impulse generator, applied to terminal 2. The two signals applied to circuit 1 control the opening of a gate 4 so that pulses from oscillator 5 are fed through to counter stage 1 in the interval between the occurrence of a line synchronizing pulse from the recorded signal and the corresponding pulse from the master generator. The pulses, corresponding in number to the timing error between the two signals, are counted in the binary counter stages I to V to set the stages accordingly. At the conclusion of the count switches 21 to 25 are operated to set the state of the counter into the bi-stable stores 31 to 35 before the counter is reset, by a pulse on line 10, ready for the succeeding count. The stores control the insertion of delay line elements 51 to 55 or zero delay signal path elements 61 to 65. The delay line elements have delays which successively increase by a factor of two so that any integral value of delay time may be inserted, from zero to 31 times the delay TL of the unit delay element 51, which unit delay is equal to the pulse interval from oscillator 5, so that the delay inserted in the signal path corresponds to the timing error between the two signals.
Patent GB-703279-A (GB)
Title: Polynuclear heterocyclic compounds
IPC: C07D495/14
Filed: 1951-05-28
Abstract: The invention comprises compounds of the general formula <FORM:0703279/IV(b)/1> or <FORM:0703279/IV(b)/2> (wherein X represents oxygen or sulphur, and R1 and R2 represent alkyl or aryl groups or members of a further aromatic or cycloaliphatic ring), and the preparation thereof by the following processes: (a) reacting 5- or 6-hydrazine derivatives of the dihydrofurano- or dihydrothiophene-quinaldine series with carbonyl compounds; (b) treating 4-hydroxy-5:6-pyrrole- or indolequinaldines according to process (a) of Specification 703,277; (c) treating primary 5- or 6-aminoindoles or 2- or 3-aminocarbazoles according to process (b) of Specification 703,277.  The products possess amoebicidal activity and form water-soluble salts with mineral acids, e.g. halogen hydracids, sulphuric, phosphoric and nitric acids.  In examples: (1) the 6-hydrazine compound obtained from the amino compound of example (2) of Specification 703,277 by diazotization and reduction of the diazo compound with stannous chloride is heated with cyclohexanone in alcohol and the resulting hydrazone is heated with hydrochloric or sulphuric acid; (2) the cyclohexanone in (1) is replaced by methyl ethyl ketone; (3) the amino compound in (1) is replaced by that obtained from the furanoquinaldine of example (5) of Specification 703,277 by nitration and reduction; the cyclohexanone may also be replaced by 2-, 3-or 4-methylcyclohexanone; (4) the cyclohexanone in (3) is replaced by cyclopentanone and (5) by a -tetralone; (6) 3-aminocarbazole is heated with ethyl acetoacetate in dilute methanolic hydrochloric acid, the resulting Schiff's base is heated in a -chloronaphthalene, the product is etherified with allyl bromide in the presence of sodium ethoxide, the allyl ether is heated in a -chloronaphthalene and the rearranged product is heated with hydrobromic acid; (7) the condensation product of 3-aminocarbazole with acetobutyrolactone is heated with phosphorus pentoxide in paraffin oil; (8) 2-aminocarbazole is similarly treated; (9) and (10) the starting materials of (7) and (8) are heated with phosphorus oxychloride and the products heated with thiourea in ethanol.
Patent GB-623518-A (GB)
Title: Improvements relating to route or destination indicators
IPC: B61L15/00
Filed: 1947-05-09
Abstract: 623,518. Route indicators. THOMAS, G. S., and STRAY, D. A. May 9, 1947, No. 12616. [Class 3(i)] Relates to route or destination indicators of the type comprising two parallel rollers 30, 31, on which are wound an information sheet 34 which is viewed through an aperture, each roller being driven from a handle through a pair of helical or skew gears 18, 21; 20, 22, the end thrust on the driven gear 21, 22 moving it into or out of driving engagement with its associated roller, one roller only being driven for each direction of handle rotation, the other roller being disengaged. According to the invention the driving gears 19, 20 (not shown), for each of the two rollers are mounted on separate shafts 12, 14 which are contra-rotated. Each of the pairs of helical gears 20, 22; 19, 21 is contained on a two-piece casting 15 which is attached to a supporting plate 1. Each driving shaft 12, 14 is journalled in one of the castings 15 and also in a two-part centrally mounted casting 3 so that they are coaxial and each shaft terminates on the casting in a bevel gear 11, 13, both gears being oppositely driven by a third bevel gear 9 on a handle shaft 8. Each of the driven gears 21, 22 in the castings 15 is attached to a slidable shaft 23, 24, the end of which nearest the roller ends in the male part 33 of a dog clutch and which is biased to the disengaged position by a light spring 35. A stub shaft 26, 27 with a square end for engaging the roller and with the female half 29 of a dog clutch at its other end is also journalled on each casting 15, a collar 32 preventing axial movement. The operating handle 10 may be fixed to either of the shafts 12, 14 instead of to the shaft 8 and the shafts may be arranged other than coaxially if desired.
Patent GB-849786-A (GB)
Title: Method of preparing glass fibres
IPC: C03C13/00
Filed: 1958-04-22
Abstract: 849,786. Glass fibres. MONTECATINI SOC. GENERALE PER L'INDUSTRIA MINERARIA E CHIMICA. April 22, 1958 [April 26, 1957], No. 12691/58. Class 56.  Glass fibres are prepared by forming a viscous stream of a viscous aqueous composition comprising water, at least one oxygen-containing compound of silicon comprising colloidal silicate particles, sodium oxide and/or potassium oxide, and at least one non-alkaline glass components which are oxygen containing compounds of boron, aluminium, zirconium, titanium, zinc, calcium, barium, arsenic, germanium hafnium, phosphorous, lead, thorium, beryllium, and tungsten, contracting the diameter of said stream to less than one third of its initial diameter and to less than 20 microns diameter by elongating the stream in a gaseous atmosphere containing at least 10 m.m water vapour pressure but less than saturation for the temperature of the gaseous atmosphere, there being simultaneous elongation and synerisis, whereby water is concentrated at the surface of the stream and the oxygen containing compounds of silicon and the non-alkaline glass component are concentrated at the core of the stream, evaporating water from the surface and withdrawing the product as a stable amorphous glass fibre containing more than 40 % silica, sodium oxide and/  or potassium oxide, and at least one non-alkaline glass component, and having a tensile strength of at least 30,000 pounds per square inch. The viscous stream may have an initial diameter of less than 200 microns and the viscous aqueous composition may have a viscosity of at least 14 poises at 20‹C. The contraction of the diameter of the stream may be continued until the density of the core of the stream is approximately equal to the density of a fused anhydrous fibre containing non-alkali metal compounds in the same proportion. The non alkaline glass component may comprise at least 0À1 % by weight of the total solids content of the aqueous composition. The fibre may be dried at a temperature above 200‹F. but substantially below the fusion point of the fibre. The fibre may be treated with a dehydration catalyst such as a volatile acid, a water-miscible solvent or a zirconium salt prior to drying. Specified volatile acids are acetic, oxalic, citric, formic and nitric acids. Specification 796,237 is referred to.