baber/WOPTO huggingface dataset:
Patent GB-946110-A (GB)
Title: Improvements in or relating to liquid drop dispensing apparatus
IPC: B01L3/02
Filed: 1960-12-23
Abstract: 946,110. Stoppers. DOSAMATIC DROPPER CORPORATION. Dec. 23, 1960 [Dec. 23, 1959; April 28, 1960], No. 44332/60. Heading B8T. The bulb portion 46 of a pipette 18 carried by a stopper 40 is closed by a transverse member 34 with an air inlet opening or openings 60 which are closed, when the stopper is seated, to prevent liquid contacting the bulb. The pipette 18 is attached to or integral with a flexible flange 22, e.g. of polythene, which is integral with a screw-threaded ring 28 secured to the cap 40, the flange 22 being forced against the bottle top by a rib 36 on the member 34 which also seals off the holes 60 from communication with the pipette. When the cap is loosened, the flange 22 moves away from the rib 36 to connect the bulb space to the pipette. The cap and pipette may be of polythene or rubber and the flange 22 may be attached directly to the cap wall which is then threaded internally. In Fig. 10 the opening 237 between the bulb and pipette interior is normally closed by a valve 267 attached to the bulb. In a further modification, Fig. 6 (not shown), a stepped plunger in the bulb co-operates with a stop as described in Specification 946,109 to limit adjustably the amount by which the bulb can be depressed.
Patent GB-928632-A (GB)
Title: Improvements relating to spot welding machines
IPC: B23K11/11
Filed: 1961-12-12
Abstract: 928,632. Welding by pressure. EVG. ENTWICKLUNGS - UND VERWERTUNGS G.m.b.H. Dec. 12, 1961 [Dec. 12, 1960], No. 44466/61. Class 83 (4). In a multiple spot welding machine, e.g. for welding grids, welding electrodes 4 are adjustable along a pair of spaced bus-bars 1, 2, the gap between which is filled with insulation 3 and are each secured by a pair of clamping jaws 5, 6 in electrical contact with and in insulating engagement with the bus-bars 1, 2, respectively. The bus-bars 1, 2 are connected to the opposite ends of a welding transformer secondary. The electrodes 4 may be integral with or separate from the jaws 5. Complementary electrodes 13 which may be fluid-pressure actuated are supported from clumps 19 secured around a composite beam 14, 15 having conductive rails 16, 17 which electrically interconnect the electrodes 13. The electrodes 13 and their clamps 19 are adjustable along the beam 14, 15 which is rotatable about pivots 24 for ease of maintenance. The Specification also refers to known machines in which electrodes of a set are selectable by switches or by connecting plugs on the leads from the welding transformer to selected electrodes.
Patent GB-1089936-A (GB)
Title: Phenol-aldehyde polycondensation process
Inventor: IVANOV PIOTR SERGEEVICH
IPC: C08G8/04
Filed: 1964-11-02
Abstract: <PICT:1089936/C3/1> In a phenol aldehyde condensation (a) a reaction zone filled with an aqueous solution of a phenol, an aldehyde and a catalyst is heated to effect partial polycondensaton and produce a precondensate which is insoluble in the aqueous solution and precipitates, (b) the precondensate together with some of the aqueous solution is removed from the reaction zone as it precipitates, (c) the precipitate and solution are separated, and (d) the precondensate is further condensed by heating.  Phenols specified are phenol, cresol, mixtures of cresol isomers, xylenol, mixtures of xylenol isomers, tar acids, dihydricphenols and their isomers.  Aldehydes specified are HCHO, paraformaldehyde, CH3 CHO, furfural and hexamethylene tetramine. Phenol/formaldehyde waste liquors may also be used as sources of reactants.  Catalysts specified are H2SO4, HCl, (COOH)2, NaOH, NH4OH and salts thereof.  In a particular embodiment the process is continuous.  Reactors 5, 8 and 9 together constitute the first reaction zone.  The stirrers agitate the liquid at the top of each vessel but permit precipitation of the polycondensate in the lower part.  The vessels may be heated, to boiling if necessary, by heating jackets.  At the bottom of vessel 9 the polycondensate is removed with some of the aqueous solution, from which it is separated by centrifuge 21 before entering the second zone constituted by reactors 27 and 32.  These may be at 50 DEG  C. or more.  The final product is collected from outlet 35.  Volatile materials evolved during the reaction are conducted by pipes 14-16, 33 and 34 to condenser 17 where they are returned to the initial feedstock.  In other embodiments the primary polycondensate may be precipitated under centrifugal force; the precipitate may be separated from the aqueous solution using a Florence flask or continuous action separating tanks and either or both reaction zones may be at superatmospheric pressure.  The product may be used for moulding compositions, laminating, adhesives and abrasives.
Patent GB-1286109-A (GB)
Title: Process for the separation of dicumyl peroxide
Inventor: LEHMANN HORST
IPC: H01F17/04
Filed: 1969-09-09
Abstract: 1286109 Dicumyl peroxide ORBITAPLAST VEB 9 Sept 1969 44543/69 Heading C2C Dicumyl peroxide is separated from a reaction mixture obtained by the reaction of cumene hydroperoxide with dimethyl phenyl ocubinol in the presence of an acid by washing the reaction mixture with an aqueous alkaline solution to remove all traces of acid, separating the resulting mixture into aqueous and organic phases and steam-distilling the organic phase.
Patent GB-1411825-A (GB)
Title: Vibration detector
IPC: G08B13/16
Filed: 1973-09-25
Abstract: 1411825 Vibration detectors GUARDIAN INDUSTRIES Inc 25 Sept 1973 [29 Sept 1972] 44843/73 Heading G1J [Also in Divisions G4 and H1] A vibration detector 10 for use in a burglar alarm system is mountable on a surface 12 the vibration of which is to be detected, and includes an inertia mass 14 movably mounted with respect to the surface 12, an amplifying linkage responsive to relative movement between the mass 14 and the surface 12 to amplify said movement, and indicator means responsive to the amplified movement to indicate when vibration of the surface 12 exceeds a predetermined intensity. A lever 16 having a fulcrum 18 carries the mass 14. An adjustable compression spring 19 acts on the lever 16 to press its free end 20 against an arm 23 of an amplifying lever 22 having a fulcrum 24. The notched end 26 of the lever 22 engages a tab 30 of a member 32 to latch the latter against pivotal movement in its pivots 48, 48'. The fulcra 18, 24, 48, 48 are fixed relative to the detector housing 50, which is secured to the surface 12 by adhesive, self-adhesive tape, or bolting. When vibration of the surface 12 relative to the inertia mass 14 reaches a predetermined intensity, the amplified movement of the end 26 of the lever 22 is sufficient to release the tap 30 so that the member 32 pivots through 90 degrees under the spring action of a phosphor-bronze strip 44. A flag 46 integral with the member 32 but outside the housing 50 indicates that the detector has been triggered, and a contact 84 on the strip 44 is  moved out of contact with a contact 86 and into contact with a contact 88. The detector can be reset manually, using the flag 46. If the detector is removed from the surface 12, a feeler 70 on a lever 72, which feeler normally contacts the surface 12, moves so that an arm 76 of the lever 72 lifts the lever 22 to unlatch the member 32. The alarm circuit, Fig. 4, includes one or more detectors 10. With all detectors set, a battery 100 energizes the solenoid 112 to hold open the contact 114, 118 of an alarm circuit 120, 122. Triggering of any detector 10 by vibration, removal of the detector from the surface 12, cutting the line 108 or 110, or inadvertent shorting between the lines 108, 110, de-energizes the solenoid 112 to activate the alarm circuit.
Patent GB-1243293-A (GB)
Title: Improvements relating to stent's for heart valves
Inventor: HANCOCK WARREN DALE
IPC: A61F2/24
Filed: 1969-09-12
Abstract: 1,243,293. Heart valve support devices. W. D. HANCOCK. 12 Sept., 1969 [16 Sept., 1968], No. 45088/69. Heading A5R. A stent 10 for a natural, or naturallyshaped synthetic, replacement heart valve comprises a generally annular framework having spaced apical portions 12, 13, 14 for supporting the commissures of a heart valve, and upper arms 18, 19, 20, and lower arms 25, 26, 27 connecting the apical portions and adapted to lie adjacent marginal portions of the cups of a valve fitted over the stent for attachment thereto. The portions 12 to 14 are apertured and arcuate, upper connecting arms 18 to 20 being curved downwardly therefrom more than lower arms 25 to 27. The framework is integrally formed of plastics material or of metal, such as stainless steel, the upper arms being bendable in the latter case to accommodate different sized valves secured to the stent by sutures. The connecting arms may be covered by a tubular cloth (20), and an outer cloth or sponge ring (58) may be located around the arms providing a bed for fibrous ingrowth after grafting and acting as a henodynamic seal. The stent 10 is for use in the aortic or pulmonary position, a similar stent (32), Fig. 5 (not shown) for the mitral or tricuspid position being larger and having an integral lower outer ring (50) or a cloth ring (73) around the lower arms, by either of which means the stent (32) and valve may be secured in the heart. An annular ring (53), of for example felt, may be located between ring (50) and the lower arms to provide a henodynamic seal. Ragged edges of a valve and sutures may be covered by cloth (62) providing a fibrous ingrowth bed. The circumferential spacings between adjacent apexes may be all different, or two spacings may be equal and the third 17 to 33% shorter.
Patent GB-1405116-A (GB)
Title: Preparation of shaped foundry articles
IPC: C08G18/65
Filed: 1972-09-28
Abstract: 1405116 Foundry compositions HOOKER CHEMICALS & PLASTIC CORP 28 Sept 1972 [26 Oct 1971 10 Nov 1971] 45473/74 Divided out of 1405114 Headings C3N and C3R Foundry compositions for preparing shaped foundry articles comprise a foundry aggregate, e.g. sand and as a curable binder a mixture of a polyisocyanate and a phenolic compound of the formula wherein X represents an oxygen or sulphur atom, y represents an alkylidene, alkylidene substituted by one or more cycloalkyl or haloalkyl groups, aryl bis alkylene or arylene group, -S-, -S-S- or -SO 2 -, n is 0 or 1, R 5  and R 6  each represent a hydrogen or halogen atom, alkyl, haloalkenyl or alkenyl group of up to 6 carbon atoms, alkaryl or arylalkyl group, a is 0 or an integer from 1 to 4, b is atleast 1, and the sum of a and b is at most 5, or an ester of such a phenolic compound with an aromatic carboxylic acid. Most preferably the polyisocyanate is a polyaryl polyisocyanate, e.g. polyphenyl polymethylene polyisocyanate and the phenolic compound is Bisphenol A. The composition may be cured by passing a tertiary amine therethrough.
Patent GB-970572-A (GB)
Title: Improvements relating to the treatment of aluminium foil for capacitors
IPC: C23F1/00
Filed: 1962-12-04
Abstract: Aluminium foil of at least 99.8% purity for the production of electrolytic capacitors is annealed at a temperature of at least 500 DEG C. in an inert atmosphere.  The time of annealing is preferably 10-100 minutes, and the atmosphere should contain less than 5% by weight of oxygen, and should have a dewpoint of below 10  DEG C. Suitable gases are nitrogen, carbon dioxide, or a mixture thereof, or a dried combustion gas containing .carbon dioxide.9-15% .carbon monoxide.0-3% .hydrogen.0-3% .nitrogen.balance As exemplified foil was heated at 20  DEG C./hour to the annealing temperature, maintained thereat for 30 minutes and cooled at 20-50  DEG C./hour.
Patent GB-1459128-A (GB)
Title: Luggage manufacture
IPC: A45C13/36
Filed: 1974-10-23
Abstract: 1459128 Making luggage J A HOLTZMAN 23 Oct 1974 45858/74 Heading A4G A method of making luggage comprises providing a flexible edge binding strip C, a flexible substantially flat side wall panel D for connection to the strip, the panel D being generally rectangular and having a radius at each of its corners, and a flexible wall section E for connection to the strip to provide the top, 16, end, 18, and bottom walls of a luggage shell A. The strip C, Fig. 3, has in cross-section a substantially U-shaped portion providing an outer arm 22 and an inner arm 24 connected by a base 26, the arm 22 having a bead 28 at the end opposite the base which provides a shoulder 30 extending from the outer side of the arm 22. The method further comprises positioning the edge portion of the panel D in the U-shaped portion and, while maintaining the panel D in substantially flat condition, urging the edge 46 of the panel against the base 26 while sewing through the arms 22, 24 and the panel edge portion therebetween at 48 to provide a sub-assembly of the panel D with the strip C around the edge thereof, and positioning the edge of the wall section E against the shoulder 30 and sewing through the adjoining portions of the sub-assembly and wall section. As described the inner arm 24 has a rounded edge 40 spaced from a second shoulder 36 provided by the bead 28 so as to permit the panel D to bend to assume the position shown in Fig. 6 at right angles to the section E after the second line of stitching 52 has been performed. A valance 10, Fig. 1, is attached to the luggage shell, which is then hinged to a second shell to form a case as shown. The strip C may be extruded vinyl chloride polymer, vinyl chloride/vinyl acetate copolymer, polyethylene, or ABS polymer. The panel D and section E may be of a resin compound e.g. vinyl chloride polymer, vinyl chloride/vinyl acetate copolymer, or ABS resin, optionally reinforced with a woven or non-woven fabric, or of a water repellant fabric.
Patent GB-994131-A (GB)
Title: Improvements in and relating to mop swabs
IPC: A47L13/20
Filed: 1963-11-21
Abstract: 994,131. Swabs. T. V. MOSS. Nov. 21, 1963, No. 46064/63. Heading A4F. A mop swab consists of a number of parallel cords 1 which at each end are preliminarily secured together with adhesive paper or thermoplastic tapes 4. The tapes 4 are then covered with woven fabric tapes 9, 10 which are stitched to the cords on either side of the tapes 4, as shown in Fig. 7. A further woven fabric tape 15 is then secured about the middle of the swab after the central portion of the cords 1 have been bunched together.
Patent GB-1011377-A (GB)
Title: Improvements in or relating to adjustable inductance assemblies
Inventor: GRENLY MARK
IPC: H01F17/04
Filed: 1963-11-22
Abstract: 1,011,377. Transformers. NEOSID Ltd. Sept. 23, 1964 [Nov. 22, 1963], No. 46159/63. Heading H1T. In an adjustable inductance assembly comprising a threaded trimmer core 4 which penetrates into a recess 1d in a pot core of magnetic material (e.g. iron dust or ferrite or thermosetting or thermoplastic materials containing these substances) enclosing a coil 1a, the core 4 is supported and also self-taps the chamfered ends 3a of projections on a ring 3 of plastic material and the projections 3a snap fit into slots formed in the upper flanges 1c of the pot core. To prevent abrupt changes in inductance the base of the recess 1d has a raised projection and dimples 1f on the ring 3 reside in recesses formed in the flange 1c to prevent rotation of the ring. The leads from the coil may be taken out through slots 3b or 1g and a projection 1bb allows attachment of the assembly to a chassis or an aperture in a printed circuit board. Different parts of the pot core may consist of different materials.
Patent GB-1031902-A (GB)
Title: Improvements in silver halide photography
IPC: G03C1/492
Filed: 1962-12-07
Abstract: 1,031,902. Photographic silver halide materials and processes. E.I. DUPONT DE NEMOURS & CO. Dec. 7, 1962 [Nov. 8, 1962], No. 46344/62. Heading G2C. Photographic elements which give positive images on exposure followed by treatment with a silver halide solvent comprise a silver halide emulsion containing an organic compound the nature and amount of which is determined by tests as set out in the Specification. In particular, the organic compound may be a carbocyclic aromatic mercaptan, a carbocyclic aromatic selenium compound in which the selenium is present as an -SeH group, or 2-mercapto-4-phenylthiazole. In general the amounts are said to be between 0.125 and 314g. per mole of silver halide. Mercaptano which comply with the tests are thiophenol which may be substituted with a chloro, bromo, amino, nitro, methyl, t-butyl or nonyl group #-Naphthothiol, thiosalicylic acid and p-t-butyl-o-thiocresol. The selenium compound may be seleno-phenol. The above compounds are used in specified amounts from 0.01- 0.0001 g. per 25 mg of silver halide. Seleno-urea is said to be unsuitable. In the examples, a film base coated with a silver chlorobromide or bromoiodide emulsion is bathed in an aqueous alchoholic solution of the compound, dried and exposed. Treatment with an aqueous sodium thiosulphate solution followed by bathing in a fogging developer containing 1 -phenyl-4 -methyl-3-pyrazolidone, hydroquinone and potassium iodide gives a positive image. The pH of the silver halide solvent solution may be acid or alkaline, and potassium thiocyanate containing sodium carbonate may be used. In other examples, 2-mercapto-4-phenyl-thiazole is added to silver halide emulsions in amounts varying from 0.4 to 5g. per mole of silver halide. After exposure and treatment with thiosulphate, the emulsion is flashed with white light and the image reduced chemically to silver. In example X, a binder-free silver halide layer is prepared by vapour deposition and bathed in an ethanol-water solution of 2- mercapto-4-phenyl-thiazole.
Patent GB-1394853-A (GB)
Title: Apparatus for converting high polymers into fuels
IPC: B09B3/00
Filed: 1972-05-05
Abstract: 1394853 Decomposing polymers into liquid and gaseous fuels NIIGATA TEKKOSHO KK 5 May 1972 [18 Aug 1971] 46775/74 Divided out of 1394851 Heading C5E Apparatus for decomposing high polymers into liquid and gaseous fuels comprises an extruder 11 having a rotatable screw shaft 13, heaters 14a, 14b and 14c, a nozzle die 30 and a conduit 55 through which the polymer, after being converted to fluid, is passed into a cylinder 57. The cylinder 57 has a piston 58 which is controlled by a cam 59 which also controls (via a rod 60) a valve 56 (Fig. 2, not shown) so that the valve 56 is opened to allow polymer fluid to enter the cylinder 57 as the piston 58 is withdrawn and thereafter closed so that the decomposition products are expelled, past a non- return valve 61, by the piston on the next stroke. The decomposition products are collected in a reservoir 40 from which liquid products can be siphoned from above the water layer and from which gaseous products are removed for combustion in part at 44 and in part at 47 to drive a gas- or steam-turbine 48 which powers an electric generator 49. In the extruder 11 the polymer is progressively heated to 100-400‹ C. by the heater 14a, to 400-600‹ C. by the heater 14b, and to 600-1000‹ C. by the heater 14c.
Patent GB-1166816-A (GB)
Title: Process for Fixing Consolidating Rods in Drill Holes, especially in Friable Rock
IPC: E21D20/02
Filed: 1966-10-19
Abstract: 1,166,816. Anchoring bolts. BERGWERKSVERBAND G.m.b.H. 19 Oct., 1966 [27 Nov., 1965], No. 46836/66. Heading F2H. A consolidating rod c is formed by a tube b filled with, e.g. cement, having an unsymmetrical tip at one end and an enlarged head at the other, and is fixed in a hole by a mixture of polyester resin, accelerator, and finely granulated filler in an amount in the ratio of approximately 100 to 400% of the weight of the resin, contained in one compartment of a paper or cardboard destructible cartridge a, and a hardener contained in another compartment, the cartridge being destroyed by inserting the rod into the hole at 150 to 750 r.p.m. at a pressure of approximately 900 kg, and the resulting mixture being arranged to completely fill the annular space between the smooth external surface of the rod and the hole, the clearance being approximately 1À5 mm. After hardening of the mixture a base-plate is screwed to the projecting end of the rod. Reference has been directed by the Comptroller to Specification 953,056.
Patent GB-977096-A (GB)
Title: Organoboron polymers and production thereof
IPC: C07F5/02
Filed: 1962-12-12
Abstract: The invention comprises boron-containing polymers containing the recurring unit <PICT:0977096/C3/1> where R is an alkyl radical having 1 to 6 carbon atoms. The polymers are prepared by reacting a dihalo (dialkylamino) borane of formula (R2N)BX2, where X is chlorine or bromine, with an alkali metal, a sodium-potassium alloy or a sodium amalgam in an inert liquid. In examples, polymers are obtained by reacting dichloro (dimethylamino) borane, dibromo (dimethylamino) borane, dichloro (diethylamino) borane and dichloro (di-n-propylamino) borane, with molten sodium, molten potassium and a sodium-potassium alloy.
Patent GB-1020917-A (GB)
Title: Building panel
Inventor: CRABB ERNEST
IPC: E04C2/24
Filed: 1962-12-12
Abstract: 1,020,917. Building panels. PORON INSULATION Ltd. Dec. 11, 1963 [Dec. 12, 1962], No. 46985/62. Heading E1B. A building panel comprises a core of expanded polystyrene, on one or both faces of which is cast a layer of asbestos cement, which is keyed to the core. The core may be provided with grooves in its surface to provide the key, or the core is cut from a larger slab of polystyrene and the holes then present in the core surface key with the cement.
Patent GB-1122238-A (GB)
Title: Semi-conductor device
Inventor: JOHNSON ANTHONY
IPC: H01L23/367
Filed: 1964-11-18
Abstract: 1,122,238. Soldering. ENGLISH ELECTRIC CO. Ltd. 16 Nov., 1965 [18 Nov., 1964], No. 46998/64. Heading B3R. [Also in Division H1] A semi-conductor device is secured to a heat sink by a soldering technique in which the device and the sink are pre-tinned and then assembled, together with a mass of solder, in a jig which is subsequently immersed in a heated liquid. The device depicted in the drawings (not shown) is a diode mounted on a conductive support and the heat sink consists of two initially separate U-shaped members which are fitted one within the other with their bases attached to the device support and their limbs projecting therefrom to constitute cooling fins. The devices -a plurality of which may be handled together on a conveyer or in a tray-are pre-tinned by immersion; the heat sink members are individually pre-tinned ultrasonically. Each diode and its associated heat sink members, together with a mass or masses of solder-preferably 60% Sn, 40% Pb-are then assembled in the jig which is passed through an oil vat at a temperature of 205-210‹ C. for about 4 minutes.
Patent GB-1409616-A (GB)
Title: Character printer
IPC: B41J33/388
Filed: 1973-10-09
Abstract: 1409616 Automatic control DOCUTEL CORP 9 Oct 1973 [13 Oct 1972 16 April 1973] 47087/73 Heading G3N [Also in Division B6]  A printer [see also Division B6] for printing OCR and MICR characters on stationery includes controls to ensure correct positioning of the stationery, correctly set hammers and correctly tensioned ink ribbon. The stationery is advanced until a sensor 38 indicates that the stationery is in position and a sensor 46 indicates that a feed tractor is positioned correctly. Print character wheels are set so that a sensor 61 indicates the required character, when printing is permitted if hammer set sensors 99, 109 and ink ribbon movement sensors 132, 134 indicate correct states. The ink ribbons sensors 132, 134 detect alternating light and dark areas on two tracks on a disc and both must alternate to verify ribbon movement. On ribbon breakage, a switch 150 shuts down the system. Sensors 125, 76 indicate that the hammers have operated correctly and trigger a second cycle.