baber/WOPTO huggingface dataset:
Patent GB-1413921-A (GB)
Title: Dynamic flow divider for preparative gas chromatographs
IPC: G01N30/32
Filed: 1973-10-25
Abstract: 1413921 Gas chromatography CHROMATRON BERLIN VEB 25 Oct 1973 [31 Oct 1972] 49852/73 Heading B1H A dynamic flow divider for preparative gas chromatography for dividing the gas stream 5 from a gas chromatographic column 12 into two partial streams, comprises two capillaries 1, 2, means for feeding the gas stream to be divided to one end of each of the capillaries, means for withdrawing the desired partial stream from the other end of a first of the capillaries, a needle valve 4 connected to the other end of the second of the capillaries and means for feeding an additional gas stream 6 via the needle valve to said other end of the second capillary, whereby the relative rate of flow of additional gas through the needle valve serves to determine the division of the gas streams between the capillaries. A third capillary 3 may be connected to the said other end of the second capillary and a further gas stream 9 connected to the remote end of the third capillary. In the Drawings 14, 15 and 16 represent regulators and 13 a sampler.
Patent GB-1364996-A (GB)
Title: Rubber compounding
IPC: C08L33/02
Filed: 1972-10-31
Abstract: 1364996 Elastomer blends CITIES SERVICE CO 31 Oct 1972 [26 Nov 1971] 50167/72 Headings C3P and C3Q A homogeneous blend of elastomers is produced by mixing an elastomer in latex form with an elastomer dissolved in an organic solvent to form a pseudoemulsion in which the two elastomers are mixed, at least partially coagulating the elastomer of the latex prior to coagulation of the dissolved elastomer, subsequently vaporizing organic solvent from the pseudomulsion, coagulating the dissolved elasomer in the presence of the coagulated elastomer from the latex and thus agglutinating the two elastomers. The at least partial coagulation of the elastomer latex may be effected by addition of a coagulating agent to the pseudoemulsion prior to any vaporization of the organic solvent, the pseudoemulsion then being diluted with hot water containing a coagulating agent so that the solvent evaporates and coagulation of the dissolved elastomer takes place. In one embodiment, shown in the examples, the partially coagulated pseudoemulsion is fed into a hot water bath containing sulphuric acid, a part of the hot water being recylced and mixed with the pseudoemulsion entering the bath. A carbon black slurry is mixed in the examples with a styrene-butadiene rubber latex. The mixture is creamed and added in a steam eductor to polybutadiene dissolved in toluene containing aromatic oil, the effluent being fed to the aforesaid hot water bath, from which water is circulated to the eductor.
Patent GB-1120398-A (GB)
Title: Roofing material
IPC: E04D3/35
Filed: 1965-11-25
Abstract: A building board of asbestos cement containing cellulose fibres, which has laminated to its reverse side a sheet of cellular plastic may be coated with a weather- and atmospheric-resistant coating composition comprising an aromatic amine cross-linked epoxy resin which will set without the application of heat or pressure.  The coating is applied without using a solvent, and the epoxy resin may contain a plasticiser or fillers.  The cellular plastic may be polystyrene, polyurethane or polyvinyl chloride.
Patent GB-507336-A (GB)
Abstract: 507,336. Wool fat compositions; alkaline earth soaps. HARDMAN & HOLDEN, Ltd., SMITH, H. W., CAMPBELL, S. G., and LAND, H. S. Dec. 14, 1937, No. 34538. [Class 91] [Also in Group IV] Wool grease is heated with oxideorhydroxide of calcium, strontium, barium, or magnesium, without added water, whereby the neutral esters contained are saponified, In an example, Bradford wool grease is heated at 240 to 320‹ C. with calcined magnesia for 1 to 2 hrs., to complete saponification. The product has drying properties, and may be used for coating or impregnating compositions. Specifications 470,715 and 507,335 are referred to.
Patent GB-1131415-A (GB)
Title: Improvements in or relating to reconstituted mica
IPC: C04B14/20
Filed: 1965-11-30
Abstract: 1,131,415. Treated mica. GENERAL ELECTRIC CO. 30 Nov., 1965 [2 Dec., 1964], No. 50797/65. Heading C1A. [Also in Divisions B5, D2 and H1] A mica sheet which is free of all potentially water producing hydroxyl groups to an extent such that it shows at most 0À1% weight change after heating to 800-1000‹ C. may be prepared by reconstituting exfoliated mica as a sheet using normal paper making methods and then heating the sheet until it has the desired properties. Suggested heating regimes are 850‹ C. for 1 hour, 790‹ C. for 2 hours or 650‹ C. for 18 hours but no definite combination of time and temperature is claimed. If desired the sheet may be impregnated with an inorganic binder before the heating step or with an organic or an inorganic binder after the heating step. Suitable binding materials specified are solutions of ammonium or potassium diborate and ammonium or potassium dihydrogen phosphate. Several impregnated sheets may be laminated by the use of suitable heat and pressure conditions. The flexural strength and electrical properties of the product are indicated in the examples. The product finds use as a circuit board piece or a spacer means in an electronic tube.
Patent GB-1324389-A (GB)
Title: Basic quinophthalone dyes free from sulphonic acid groups their  production and use
IPC: D06P3/76
Filed: 1970-10-27
Abstract: 1324389 Quinophthalone dyes SANDOZ Ltd 27 Oct 1970 [19 Nov 1969] 50891/70 Heading C4P Quinophthalone dyes free of sulphonic acid groups have the formula wherein X is S, SO 2 , -O- or Y is a direct linkage or a divalent hydrocarbon radical which may be substituted and may be interrupted by hetero atoms, alk is a substituted or unsubstituted alkylene radical, R 1  and R 2  are hydrogen, alkyl or cycloalkyl which may be substituted or together may complete a heterocyclic ring, the aromatic rings B and/or D may be substituted and R is hydrogen or a substituted or unsubstituted hydrocarbon radical. Dyes, wherein X is S may be obtained by oxidation of the corresponding thio compound, otherwise the dyes are obtained by condensation reactions at the 4-position of the quinoline nucleus.
Patent GB-1185269-A (GB)
Title: A Hair Trimming Device
IPC: B26B19/14
Filed: 1968-10-29
Abstract: 1,185,269. Hair clippers. SCHICK ELECTRIC Inc. 29 Oct., 1968 [12 Feb., 1968], No. 51254/68. Heading B4B. A hair trimming device for clipping hair comprises inner and outer cutters 32, 10, Fig. 5, each having co-operating teeth 42, 16 respectively, the inner cutter being urged against the outer cutter by means of a spring 54 and driven by an oscillatory rotary shaft 44 of a motor. The shaft 44 is provided with a square shank portion 50 adapted to slidably engage with a plastics coupling sleeve 46 having a tongue 52 for engagement with a slot 38 in the cutter 32. The inner and outer cutters may be of stainless steel.
Patent GB-1083889-A (GB)
Title: Improvements in creasing tools for use in box-blank forming machines
Inventor: SHEERAN LLOYD ALAN
IPC: B31B50/22
Filed: 1964-12-16
Abstract: 1,083,889. Cutting-machines. RITE-SIZE CORRUGATED MACHINERY CO. Dec. 16, 1964, No. 51260/64. Heading B4B. [Also in Division B6] In a box-blank forming machine, a tool for slotting the blank B transversely inwardly from its two side edges and creasing the blank transversely along the line of the slots comprises a vertically-reciprocating casing 41 with two creaser bars 30, 30<SP>1</SP> spring- mounted therein and slotters 29 fixed to the casing and situated between the bars 30, 30<SP>1</SP>. The slotters 29 consist of a number of separate blades each with a toothed inclined cutting edge 46 (Fig. 3, not shown). The machine may also include a knife 35<SP>1</SP> (Fig. 2, not shown) for cutting a blank to the required length.
Patent GB-1051830-A (GB)
IPC: C07F5/06
Filed: 1963-07-05
Abstract: 1,051,830. Higher trialkylaluminium compounds. ETHYL CORPORATION. July 5, 1963 [July 12, 1962 (2)1, No. 51302/65. Divided out of 1,043,422. Heading C2J. The manufacture of higher molecular weight trialkylaluminium compounds by chain-growing ethylene on the alkyl groups of a lower trialkylaluminium feed and passing the resulting stream of intermediate mixed trialkylaluminium residues through a series of crystallizing stages where the crystal crop from one crystallizer is discharged to a subsequent crystallizer under conditions such that the higher trialkyl aluminium residues crystallize while the lower residues remain in the molten liquor. The lower residues may be recycled to the chaingrowing step whilst the higher moieties are removed from the system. Unreacted ethylene in the mixed stream is separated from the stream prior to crystallization step and recycled to the reactor. The crystallizers are arranged in staged manner and the mother liquor from the subsequent crystallizer is transferred to the first crystallizer. The mixed trialkylaluminium stream may be diluted with low viscosity solvent such as an alkane hydrocarbon liquid.
Patent GB-1405764-A (GB)
Title: Intrauterine contraceptive devices
IPC: A61F6/14
Filed: 1972-11-07
Abstract: 1405764 Intra-uterine contraceptive devices A H ROBINS CO INC 7 Nov 1972 51339/72 Heading A5R An intra-uterine contraceptive device comprises an elongate central core body 10 having a nose 12, a tail 14, lateral sides 16 and a plurality of closely spaced elongate spurs 18 with smoothly contoured terminal portions extending outwardly from the lateral sides of the core body at least some of these spurs having an inclination towards the tail. As shown two rows of spurs are provided on each lateral side. The spurs are inclined towards the tail and decrease successively in length from the nose to the tail. Each spur increases in crosssection towards its free end enabling the spur to flex. Thin webs 20 are formed between the spurs and attached to the lateral sides. The webs may be attached to or unattached to the adjacent spurs. Additional transverse webs (26) Fig 2, (not shown), are formed between spurs in different rows. The transverse webs may be attached to or unattached to the adjacent spurs and or webs. A line 28 is attached to the tail 14. The line may have a knot to act as a marker. A single row or more than two rows of spurs may be formed on each lateral side. The webs may be shorter or longer than adjacent spurs. The device is made as a onepiece plastics moulding.
Patent GB-1148702-A (GB)
Title: 2-(5-carboxypentyl)-4,6-dimethoxybenzoic acid and a process for the preparation thereof
IPC: C07C65/21
Filed: 1967-11-13
Abstract: 1,148,702. Carboxy pentyl dimethoxybenzoic acid. COMMERCIAL SOLVENTS CORP. 13 Nov., 1967 [30 Jan., 1967], No. 51427/67. Heading C2C. The invention relates to 2-(5-carboxypentyl)- 4,6-dimethoxybenzoic acid of the general formula The preparation of the compound is described in a multi-stage process comprising 13 steps in which the intermediate compounds are isolated.
Patent GB-1317032-A (GB)
Title: Radiating tracer devices for missiles
IPC: F42B12/38
Filed: 1970-10-30
Abstract: 1317032 Tracer devices SOC NATIONALE INDUSTRIELLE AEROSPATIALE 30 Oct 1970 [3 Nov 1969 19 June 1970] 51726/70 Heading F3A A radiating tracer device for optically guided missiles comprises a chamber 4 in communication with a heat source 2, and a heatable radiant plate 11 provided with discharge openings 12 for the combustion products of a heating charge 7. The plate 11 is planar or faceted and may be covered with an optical, e.g. an infrared, filter 10. The plate is made of nickel, iron, titanium, niobium, zirconium, hafnium, thorium, tantalum or an alloy thereof. To increase the emissivity of the plate its outer surface includes a layer of an oxide of one of the above metals or a layer of carbon. The layer of oxide may be produced by a surface oxidization reaction occurring when oxygen is swept over the surface of the heated plate of the activated tracer device or when oxidizing agents previously incorporated in the plate by sintering, solid diffusion or chemical combination react with the heated metal of the plate. The heating charge 7 is a propellant or a pyrotechnic flare composition and radiation from the plate 11 is enhanced by the passage of pyrotechnic particles through the discharge openings 12 or by the re-ignition of propellant combustion gases beyond the external surface of the plate. In another embodiment (Figs. 7 and 8, not shown) the radiant plate is heated by propellant gases bled off from the rocket motor of the guided missile. The plate 11 may also be of the kind described in co-pending Specification 1,317,031.
Patent GB-1122068-A (GB)
Title: Improvements relating to data transmission apparatus
Inventor: WALLACE JAMES PETER
IPC: H04B10/25
Filed: 1965-12-08
Abstract: 1,122,068. Protective arrangements. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 1 Dec., 1966, No. 52104/65. Heading H2K. [Also in Divisions G1 and H4] Light pulses modulated in accordance with the current variations on a high voltage line are transmitted via a light guide to a location at low (earth potential) where the pulses are detected for measurement or control purposes. The devices at high potential include a current 'ransformer coupled to the line, a generator of square pulses of constant width and repetition rate, and a light-emitting device, e.g. a gallium arsenide diode. Pulses from the generator are width modulated in accordance with variations in the line current and amplified before supplying the light source. At earth potential the light transmitted by the fibre optic guide is detected by a photo-diode and the amplified and demodulated signal used for measurement of the actual value, the r.m.s., or the instantaneous value of the line current or to the control of protective apparatus, e.g. a circuit-breaker. The circuit (Fig. 3, not shown), for modulating the square pulses from the generator is transistorized and supplied from the line. Square pulses of a frequency much higher than the A.C. line variations (in the case of an A.C. line) are applied at e i , charge up a capacitor (C 1 ) and cause transistors (T 1 , T 2 ) to conduct, producing an output voltage e 0 . The duration of conduction of the first transistor (T 1 ) after the end of a pulse e;, depends on the voltage at a point (V e ) which follows variations in the line current. The receiver circuit (Fig. 4, not shown), includes an amplifying transistor (T 3 ) and integrating and D.C. filter arrangements. Various constructions for the insulating structure, adapted to include a light guide, are described (Figs. 5-7, not shown).
Patent GB-1474045-A (GB)
Title: Marine propulsion and guidance system
IPC: B63H20/14
Filed: 1974-12-06
Abstract: 1474045 Outboard drives C BUDDRUS 6 Dec 1974 52825/74 Heading B7V A marine propulsion and guidance system comprises a main fluid pressure generator 16, e.g. a reversible variable displacement axial piston pump, and a helm fluid pressure generating system 30, e.g. a radial piston pump, within the vessel, a manifold hinge 54 rigidly mounted on a generally horizontal axis outside the vessel, a drive having an upper section 64 mounted to oscillate in a vertical plane about the hinge 54, and a lower section having a drive motor 68, e.g. an axial piston motor, to drive a propeller 70, and mounted to oscillate about a generally vertical axis 160 with respect to the upper section and fluid conduits 20, 57, 100 connecting the helm generator 16 with the motor 68, and conduits 34, 50 connecting the helm generator 30 with oscillating motor 82. The motor 82 comprises a piston 86 with a rack 88 meshing with a gear 94 on the lower section shaft 92. A gear pump 40 actuates a trim and lift motor 106 for altering the angle of the drive axis 160, and lifting the drive relative to the water.
Patent GB-1419782-A (GB)
Title: Lavatory odour extractor
IPC: E03D9/052
Filed: 1972-11-17
Abstract: 1419782 Lavatory ventilator HO HOI 11 Jan 1974 [17 Nov 1972] 53091/72 Heading E1C Gases are extracted from a lavatory closet via a duct 5 by a fan 10 and passed over a heating element 8 in a housing 6 which heats the gases to at least 80‹. The housing may have a screen 12 supporting de-odourants and/or disinfectants. The duct 5 is connected to a hollow lavatory seat having vent holes therein.
Patent GB-1368483-A (GB)
Title: Jet drop printing techniques
IPC: H04N1/034
Filed: 1971-11-16
Abstract: 1368483 Printer control MEAD CORP 16 Nov 1971 [17 Nov 1970] 53249/71 Heading G4H In an ink-drop writing system information derived from raster scanning a graphical representation is converted to digital form and stored as a series of n-bit bytes which may be read-out as a series of n-parallel signals for controlling a group of n ink-drop writers which scan across a recording medium, the group being displaced after each scan to record a fresh band. Each picture element may be represented by a 3 x 3 matrix of dots, in which case the picture element signals are converted by means of a look-up table to 9-bit digital signals, which are rearranged in an intermediate read/write storage operation before final storage as the n-bit bytes. A single band must then be scanned three times corresponding to the three rows of the 3 x 3 matrix. In the arrangement of Fig. 1, signals derived from raster scanning an image 16 by photo-cell 18 are converted to digital signals (20) and rearranged in a format control unit 21 for final storage in an 8-track magnetic tape recorder 23. Each track corresponds to a different one of the eight ink-drop writers 35 which scan across the width of a recording medium 47 mounted on a rotating drum 36. A stepping motor 48 steps the group of writers along the length of the medium. At start-up, switch 51, a tape reader 30 loads a magnetic core-store 32 via an 8-bit load register 31 which is clocked by signals read from the tape. An oscillator 63 controls read-out of the store 32 into an 8-bit unload register, which feeds the ink-drop writers, and also controls the rotation of the recording medium drum 36 via synch-drive 69. Counters 55 and 100 control the read-in and read-out of the main store 32 in conjunction with counter 84 counting incremental stations of the drum 36.
Patent GB-1434262-A (GB)
Title: Driving means for cylinder or drum
IPC: F16H55/30
Filed: 1973-11-19
Abstract: 1434262 Driving drums M HENIG 18 June 1974 [19 Nov 1973] 53531/73 Heading F2Q A cylinder or drum is rotatable or oscillatable about its axis by a driving chain 6 which engages teeth 5 provided on a ring 3 of iron detachably secured to a lip 2 extending axially from one end of the drum. The ring 3 comprises four arcuate sections secured to the lip by bolts 4, a pair of teeth 5 being welded to each section. The diameter of the ring may be increased to compensate for wear by inserting a spacer 10 between the lip 2 and the ring 3. The chain 6 is driven by a sprocket 7 on the output shaft 8 of a driving motor 9.
Patent GB-1326909-A (GB)
Title: Method and apparatus for radar camouflage coating
IPC: F41H3/00
Filed: 1970-11-11
Abstract: 1326909 Coating apparatus HEIN LEHMANN AG and UNITECTA OBERFLAECHENSCHUTZ GmbH 11 Nov 1970 [13 Nov 1969] 53601/70 Heading B2L  Apparatus for coating fixed installation with an undulating coating to comprise radar detectors comprises an applicator having an inlet tube 1 and a serrated spreader 3. The coating applied may be a filler with microwave reflecting substances therein for example black iron oxide. Alternatively two coatings may be simultaneously applied with the same spreader the upper layer being the one with the microwave reflecting substances therein. The undulation profiles are substantially triangular with no two angles equal and the angle at the tip of the triangle being other than a right angle.
Patent GB-1384088-A (GB)
Title: Ring type ball mills for pulverising coal and similar material
IPC: B02C15/12
Filed: 1972-11-21
Abstract: 1384088 Ball-and-ring mills CENTRAL ELECTRICITY GENERATING BOARD 22 Oct 1973 [21 Now 1972] 53660/72 Heading B2A A ball-and-ring mill has a rotatable horizontal table 10, Fig. 1 a ring of balls 13 between a lower grinding ring 12 on the table and an upper stationery ring 14, means to direct air upwardly through a throat around the periphery of the table to carry pulverized material upwardly, and elements 22, Fig. 3 on the table extending outwardly from the peripheral surface of the table to extend across the throat so as to disperse heaps of material falling into and through the throat into separate particles which are carried upwardly by the air stream. These elements comprise spring steel scoops detachably secured to brackets 24 on the table at an angle of 45‹ to the vertical and arranged to extend helically downwardly and forwardly of the table. The scoops reduce the amount of pulverized material incorrectly rejected into reject boxes 21 Fig. 2.
Patent GB-1326420-A (GB)
Title: Magnetic recording apparatus
IPC: G11B11/105
Filed: 1970-11-13
Abstract: 1326420 Synchronizing systems INTERNATIONAL BUSINESS MACHINES CORP 13 Nov 1970 [22 Dec 1969] 54012/70 Heading H3A Magnetic recording apparatus for synchronizing an information signal read from a magnetic storage medium 10 with a reference clock 44 comprises a magneto-optic scanning arrangement 14-30 for scanning the magnetic recording 12, a frequency and phase comparator 42 for comparing the information signal with the clock signal to produce an error signal for adjusting the sweep speed of the scanning arrangement until synchronization is achieved. An optic image representing the stored data is formed by by a magneto-optic transducer 16-26 on a vidicon face scanned by an electronic beam deflected horizontally and vertically by an arrangement 52-60. The information signal is obtained at 34 and the error voltage is applied to a correction coil 50 for varying the horizontal deflection. In the alternative embodiment of Fig. 5 (not shown) a flying spot scanner employing a cathode-ray tube whose beam serves as a light source for scanning the magnetic recording is used and the resulting variations in optic energy are converted by a photomultiplier into the desired information signal. The error signal resulting from phase comparison with the clock signal is applied to control the sweep speed of the scanning beam.
Patent GB-1284740-A (GB)
Title: Improved method and compositions for cable-blocking
IPC: H01B13/00
Filed: 1969-11-04
Abstract: 1284740 Method and compositions for cable blocking MINNESOTA MINING & MFG CO 4 Nov 1969 [5 Nov 1968] 54077/69 Heading H2C  Cable blocks are formed in sheathed multiconductor pressurized cables by filling a short length of the cable with a liquid composition that self cures to form a solid polyurethane and allowing the curing to take place within the cable, the mixture exhibiting a controlled expansion. Reaction between isocyanate groups and active hydrogens is induced preferentially to reaction with a small amount of water in the mixture by means of a catalyst, for example a mono-organic-mercuric compound. When the mixture attains a viscosity of at least 50,000 centipoises, its composition is so chosen that reaction between the water and the isocyanate groups now takes place aided by a further catalyst, producing carbon dioxide sufficient to expand the mixture to 105-125% of its original size, so that the cable is firmly blocked. Materials used to form the block are disclosed.