baber/WOPTO huggingface dataset:
Patent GB-1221308-A (GB)
Title: Improvements in or relating to fasteners
Inventor: CROW ROBERT PATRICK
IPC: F16B2/22
Filed: 1967-11-10
Abstract: 1,221,308. Releasable fastening. McMURDO INSTRUMENT CO. Ltd. 8 Nov., 1968 [10 Nov., 1967], (No. 51321/67. Heading E2A. A manually fastenable and releasable fastening device includes a resilient arm 12, extending between a mounting portion 10 adapted to be secured to one of two members to be fastened together and an engaging portion 14, said arm being arranged to be resiliently deformable in two perpendicular directions of which in use one is parallel to the direction of separation of said members by manual pressure in a direction towards said members exerted on a first portion thereof to cause said engaging portion to engage a keeper formed in or secured to the other of said members, and to be deformable by manual pressure towards said members exerted on another portion 24 thereof the release said engaging portion from said keeper. In the construction shown the portion of the arm which is laterally deformed is bowed and extends in an arc of approximately 180‹ and the remainder of the arm is substantial L-shaped. In a modification however the L-shaped part of the arm is connected to the mounting portion by a substantially S-shaped portion which is the portion which is deformed. The arm and the mounting portion can be integrally made from a plastics material or metal.
Patent GB-1111438-A (GB)
Title: Electrical connection through a body of semiconductor material
IPC: H01J37/34
Filed: 1965-12-03
Abstract: 1,111,438. Semiconductor devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. 3 Dec., 1965 [28 Dec., 1964], No.51341/65. Heading H1K. A method of forming an electrical connection between conductors on opposite major faces of a semi-conductor wafer, e.g. for an integrated circuit, comprises forming an aperture through the wafer and degenerately doping the wall of the aperture. Apertures (39) are formed in an N type semi-conductor wafer 1, Fig. 2A (not shown), the wafer is thermally oxidized, and the major faces are photo-masked leaving a small annular area exposed round each aperture (39), Fig. 2B (not shown). The wafer is etched in hydrofluoric aoid to remove the oxide layers covering the walls of the apertures (39) and then exposed to an acceptor vapour to form degenerately doped P type regions (51) in the walls of the apertures (39), Fig. 2C (not shown). As shown, Fig. 2D, thin film conductors 53, 53a, 55, 55a are deposited on both the major faces of the wafer and are interconnected by the regions 51. Degenerate strips may be provided in the major surfaces of the wafer simultaneously and integrally with regions 51 to form connections to degenerately doped regions of some components. The apertures may be made by subjecting a masked wafer to a glow discharge in an atmosphere of argon, Fig. 1 (not shown). The mask may be of aluminium in which case a small amount of oxygen is introduced into the atmosphere so that during the discharge the aluminium is oxidized. Alternatively the apertures may be produced by etching, e.g. with gaseous hydrogen chloride, Figs. 3A to 3C (not shown). Since the etching produces tapered apertures the wafer is masked on the face opposite to that in which active and passive devices are to be formed to allow the maximum surface area for these components. The apertures may also be etched from both faces at once using masks with aligned windows.
Patent GB-1489978-A (GB)
Title: Cigar lighter socket assemblies and clamp shells therefor
IPC: F23Q7/00
Filed: 1975-12-16
Abstract: 1489978 Automobile cigar lighter WAGNER ELECTRIC CORP 16 Dec 1975 [17 March 1975] 51367/75 Heading F4F In a cigar lighter the socket 12 is secured to the dashboard 10 by a sleeve 20 screwed at one end 22, and having an upset other end 28. The inside diameter of the sleeve is at least 10% greater than the outside diameter of the socket, and the effective diameter of end 28 is no more than 5% greater than this outside diameter to improve alignment when assembling. The reduced diameter may be caused by upsetting, flanging or by adding tabs. The upsets are spaced no more than 170 degrees to each other, or the whole of end 28 may be crimped.
Patent GB-1011715-A (GB)
Title: Improvements in the formation of coatings for refractory metals
IPC: C23C10/22
Filed: 1963-12-31
Abstract: A refractory metal, e.g. niobium, molybdenum, tungsten, tantalum and vanadium, or alloys thereof, are given an oxidation resistant diffusion alloy coating using a molten alkaline earth metal (calcium, strontium or barium) as a transfer medium and one or more diffusing elements from one or both of the groups: (1) silicon and aluminium, and (2) transition elements having at least one but less than 10d electrons, e.g. titanium, manganese, iron, cobalt, nickel, yttrium, zirconium, vanadium, chromium, molybednum, niobium, tantalum, and tungsten. The transfer medium may be 25-99.5% (preferably 35-65%) by weight of the coating composition. Copper and zinc may be used to dilute the composition.  Specified refractory alloys are 80% Nb, 10% Mo, 10% Ti; and 95% Nb, 5% Zr.
Patent GB-1104007-A (GB)
Title: Improvements in or relating to contra-rotating compressors
Inventor: GARNIER MICHEL ROBERT
IPC: F04D19/02
Filed: 1966-11-17
Abstract: 1,104,007. Axial-flow compressors; gas turbine plant. SOCI•T• NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. Nov. 17, 1966 [Nov. 18, 1965], No. 51478/66. Headings F1C and F1G. In order to prevent surging in a multi-stage contra-rotating compressor supplying air to the combustion chamber 12 of an engine, air is vented to atmosphere through circumferentially-spaced ports 14, at least one aperture 15 and a manually or automatically controlled valve 17. The ports 14 may be arranged at more than one compressor stage. A pair of seals 19, 20 may be of the labyrinth type.
Patent GB-1446766-A (GB)
Title: Drain for an eardrum
IPC: A61F11/00
Filed: 1973-11-07
Abstract: 1446766 Surgical drainage appliances T AKIYAMA 7 Nov 1973 [7 Nov 1972 (2)] 51694/73 Heading A5R A drain 11 for the eardrum is formed of a polymeric material capable of absorbing water and swelling. As shown (Fig. 1), the drain 11, which is made of collagen, polyvinyl alcohol a copolymer of meta-acrylic and glycol type, mannitol, or fluorine containing resins, has a cylindrical main part 12 and a cylindrical auxilliary part 13, the main part 12 having a tapered and rounded end 12a. The dimensions 11, 12, t1, t2, d1 and d2 of the drain are disclosed. In an embodiment of an apparatus 21 (Fig. 3) for inserting the drain 11 in the eardrum, a metallic needle 28 is movably received in a tube 27, the rear end 28b of the needle being fixed to a contact element 30. A drain holder 35, which is removably mounted in a hollow cylindrical metallic body 25 by virtue of a resilient fitting between an annular bridge 40 on the cylindrical surface of a portion 37 of the drain holder 35 and a groove 41 formed in a cylindrical inner surface 34a, carries the drains 11 in holes (38). In use, the drain holder 35 is removed from the apparatus 21 and the drain 11 is picked up on the tip 28a by inserting the needle 28, which projects out of the tube 27 on pressing a trigger 31, in the drain. As shown in Fig. 5A, the end 27a of the tube 27 abuts against the bottom 12b (Fig. 1) of the auxiliary part 13 of the drain. By pulling the trigger 31 further, the needle projects out of the drain and the eardrum (44) is punctured. The drain is then inserted in the puncture by pressing against the bottom 12b with the end 27a. As the drain swells on absorbing water after insertion, it is securely held in the eardrum. A guard tube (46) (Fig. 2 not shown) sheathes the tube 27 when the apparatus is not in use. When the drain is made of collagen, it may be left in the eardrum where it dissolves. In another embodiment (Fig. 6, 7 not shown) adapted for pushing a member (55), which is supported by a leaf spring (54), with a thumb there is no provision for storing the drains.
Patent GB-1495293-A (GB)
Title: Exposure control apparatus
IPC: G03B7/085
Filed: 1974-11-29
Abstract: 1495293 Exposure control EASTMAN KODAK CO 29 Nov 1974 [29 Nov 1973] 51831/74 Heading G2A A photographic exposure control apparatus comprises a photo-sensitive element 19 responsive to scene illumination, an electro-mechanical light regulating member 16 driven by pulses to establish a correct exposure value and to control the light falling on the photo-sensitive element, the member being spring-biased towards a minimum light passing rest position, and a control circuit for modifying the pulses in accordance with the light impinging on the element. Electronic Arrangement:-A stable multivibrator 28 produces a squarewave which is "on" longer than "off" in each cycle. Photo-cell 19 in conjunction with capacitor 50 operates inversely with respect to light intensity such that the periodic peak voltage at 48 is directly related to light intensity. Trigger 52 supplies current to a meter 23 which opens a diaphragm blade 16 against a bias only when the voltage at 48 is below a given threshold. Operation:-With no light on photo-cell 19, low voltage pulses appear at 48 and the diaphragm 16 is continuously driven to open. As the pulse maxima at 48 pass the threshold the driving current to the diaphragm blade is periodically stopped. The duration of drive cut-off depends on the width of the pulse peak at 48 above threshold. An equilibrium is achieved between the intermittent drive and the return spring.
Patent GB-1137600-A (GB)
Title: Method of polymerizing unsaturated hydrocarbons
IPC: C08F10/00
Filed: 1967-11-16
Abstract: 1,137,600. Polymers of unsaturated hydrocarbons. GOODYEAR TIRE & RUBBER CO. 16 Nov., 1967, No. 52227/67. Heading C3P. Unsaturated hydrocarbons are polymerized in the presence of elemental sulphur using a co-ordination catalyst comprising at least one of vanadium tetrachloride, vanadium oxychloride, vanadium acetylacetonate, vanadium oxy-bis-(acetylacetonate) and vanadium oxytribromide, with at least one of AlR 3 , (R 2 )AlX, RAl(X) 2  and Al 2 R 3 X 3  where R is an alkyl radical having from 1 to 12 carbon atoms and X is chlorine or bromine; a list of these compounds is given. The hydrocarbons are selected from a group A or B, wherein A is ethylene or other mono-olefin of structure R<SP>1</SP>-CH = CH 2 , R<SP>1</SP> being an alkyl radical of 1 to 3 carbon atoms, and B is at least one non-conjugated diolefin with at least one Group A hydrocarbon. Preferably the diolefin has from 6 to 10 carbon atoms and is dicyclopentadiene, 1,4- hexadiene, 5-methylene-2-norbornene or ethylidene bicycloheptene. The unsaturated hydrocarbons may comprise 20 to 75 mol. per cent of ethylene and 80 to 25% of propylene and optionally 10% of the diolefin. The mol. ratio of elemental sulphur to vanadium compound is preferably from 1 : 1 to 50 : 1. In the examples, ethylene/propylene copolymers are prepared in the presence of elemental sulphur using a catalyst comprising vanadium oxychloride and ethyl aluminium dichloride, diethyl aluminium chloride, triethyl aluminium or ethyl aluminium sesquichloride. In a further example, a terpolymer of ethylene-(propylene/dicyclopentadiene is prepared in the presence of elemental sulphur using a catalyst comprising vanadium oxychloride and ethyl aluminium sesquichloride. The polymerizations may be terminated using isopropyl alcohol.
Patent GB-1373210-A (GB)
Title: Triazine and pyrimidine derivatives and their use in the whitening of polymeric materials
IPC: D06L4/664
Filed: 1971-10-08
Abstract: 1373210 Substituted 1,3,5-triazine and pyrimidine compounds IMPERIAL CHEMICAL INDUSTRIES Ltd 8 Oct 1971 [4 Nov 1970] 52447/70 Heading C2C Novel heterocyclic compounds have the general formula wherein R represents a polycyclic radical in which a benzene or naphthalene nucleus is fused with a 5- or 6-membered heterocyclic system containing 1 or 2 oxygen or sulphur atoms and which may be aromatic or non- aromatic in character, the radical R being optionally substituted by alkyl or alkoxy radicals containing from 1 to 12 carbon atoms, aralkenyl radicals or by phenyl radicals which may be substituted by alkyl, alkoxy or dialkylamino radicals in which the alkyl or alkoxy groups contain from 1 to 4 carbon atoms, and wherein A represents a nitrogen atom or the group CB wherein B represents a hydrogen atom or a chlorine or a bromine atom and X and Y each represent a chlorine or a bromine atom, an alkoxy radical containing from 1 to 12 carbon atoms, an alkenyloxy radical or an amino, substituted amino, hydroxy, aryloxy, mercapto or substituted mercapto group. The compounds wherein X and Y are both halogen atoms may be prepared by reacting a cyanuric halide or a 2,4,6-trihalogeno or 2,4,5,6-tetrahalogeno-pyrimidine with a compound of the formula RH in the presence of a Friedel-Crafts catalyst. Other methods are also described for preparing the various alternative substituted derivatives. The novel compounds may be used as whitening agents for polymeric materials.
Patent GB-1321628-A (GB)
Title: Exposure quantity control device for a camera
IPC: G03B7/083
Filed: 1970-11-05
Abstract: 1321628 Exposure control devices CANON K K 5 Nov 1970 [5 Nov 1969] 52617/70 Heading G2A An exposure control device has an input circuit consisting of a plurality of resistance devices including a photo-conductive element P and a variable resistance R D , the output of the circuit being connected to an exposure quantity determination circuit 5 and an indication circuit I so that an indication of correct exposure for day light photography or for flash photography may be given by the indication circuit. The exposure determination circuit may have an integrating capacitor C, Fig. 4, to control the operation of a Schmitt trigger circuit and to thus energize a magnet MA at a measured time interval after opening a switch sw 3 , the magnet MA controlling an iris diaphragm aperture and/or a shutter speed. Alternatively, the exposure determination circuit consists of an ampere meter which indicates the iris diaphragm and/or shutter speed. The indicating circuit contains two warning lights, L H , L L , Fig.4, which may be actuated independently by the same input as shown, or they may be actuated in cascade, Fig. 7 (not shown).
Patent GB-1462774-A (GB)
Title: Lighters
IPC: A47L5/24
Filed: 1973-11-13
Abstract: 1462774 Suction cleaners MABUCHI MOTOR KK 13 Nov 1973 [14 Nov 1972 12 Dec 1972] 52714/73 Heading A4F [Also in Division F4] A table lighter comprises a casing a having a heating wire 2 coupled through a switch 10 to an electric cell or cells 9 which also power an electric motor 25 within the casing and driving a fan 33 arranged adjacent a suction opening 34a in the casing whereby crumbs, dust &c. from the table are sucked into a removable dust pan 34 providing the base of the casing. Brushes 35 preferably arranged in a spiral pattern may be provided on the base of the lighter. The cells 9 are preferably rechargeable nickel-cadmium cells, a socket 20 for connection of a charger being provided in the casing. A light bulb 13 operated from switch 19 may be provided.
Patent GB-1076689-A (GB)
Title: Improvements in and relating to push-pull transistor modulators
IPC: H03C1/54
Filed: 1965-12-13
Abstract: 1,076,689. Amplitude modulation. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Dec. 13, 1965 [Dec. 16, 1964], No. 52803/65. Heading H3R. A push-pull modulator comprises two pairs of transistors of the same conductivity type, the carrier oscillation p being supplied in pushpull via transformer 5 between the bases of the transistors of each pair and the signal oscillation q being supplied via transformer 6 in push-pull between the emitters of one pair and those of the other pair, the bases and emitters being connected to the supply source Vb through comparatively high resistances 7-11. The output at terminals 15 is a suppressed carrier signal.
Patent GB-1322206-A (GB)
Title: Partially overlapping hologram motion picture record
IPC: H04N5/89
Filed: 1970-11-06
Abstract: 1322206 Holography R C A CORPORATION 6 Nov 1970 [25 Nov 1969] 52904/70 Heading G2J A motion picture system comprises a record wherein successive holograms are recorded on a carrier 306 each of the same size and partially overlapping adjacent ones by a given amount, and wherein the reconstructed images which include spatial beat frequencies having a minimum value which depends on the overlap, means 506 for sequentially illuminating the holograms 500 is sequentially obtain reconstructed real images in a given area of space 512 of motion picture frames 304, and image responsive means 514- 518 including a wave sensitized surface coincident with the given area and having a given overall resolution, the amount of overlap and resolution being so related that the value of the minimum spatial beat frequency is not less than the ultimate resolution capability of the image responsive means. The hologram may be phase and Fraunhofer holograms. Redundancy and the minium spatial beat frequency are introduced through, for example a phase grating, 324 or a plurality of mirrors. In recording the hologram a synchronized drive operates carrier 306 and film 304 and a shutter 302. In reconstruction the tape carrier 500, which may be a pressing, is moved continuously past laser 506. The image responsive means may be a television camera.
Patent GB-1395970-A (GB)
Title: Refining
IPC: C22B7/00
Filed: 1972-11-17
Abstract: 1395970 Scrap recovery W F HORNER D W THOMPSON and L SHERWOOD 11 Jan 1974 [17 Nov 1972] 53347/72 Heading C7D The metallic content of metal bearing residues from refining or/and smelting processes is recovered by sealing the residues in containers compatible with the process and recycling them. An example of dried non-oxide from a steel making plant sealed in a black steel container and fed back into a blast furnace is given.
Patent GB-1136158-A (GB)
Title: Improvements in or relating to waveguide filters
Inventor: CRAVEN GEORGE FREDERICK
IPC: H01P1/219
Filed: 1966-11-30
Abstract: 1,136,158. Waveguide filters. STANDARD TELEPHONES & CABLES Ltd. 30 Nov., 1966, No. 53635/66. Addition to 1,129,185. Heading H1W. An H-mode bandpass waveguide filter comprises a section or sections 3 of waveguide loaded with ferrimagnetic material 4 which is subject to a transverse magnetic field Hdc such that only an evanescent wave can propagate, and means for terminating the sections in a capacitive reactance which at the centre frequency of the band is the conjugate of the positive imaginary characteristic impedance of the section. The loaded sections 3 are connected at either end to standard waveguides 1, 2. The effect of the field Hdc is to produce negative effective permeability in the ferrite 4 whereby the effective width of the waveguide is reduced to a value below the cut-off width. The sections l and half-sections l/2 appear as pure inductances and are tuned by the adjustable capacitances provided by screws 5. In a modification (Fig. 8, not shown), the screws are replaced by irises. In another form of the filter, a single section of evanescent waveguide is terminated by a short-circuited stub of length sufficient to provide the required capacitive reactance. Such a filter section may be coupled as a shunt or series stub to a conventional rectangular waveguide.
Patent GB-1065796-A (GB)
Title: Liquid developer improvements
Inventor: WAGNER EDWARD WANGELIN
IPC: G03G9/135
Filed: 1963-09-23
Abstract: 1,065,796. Electrophotographic liquid toner. SCMCORPORATION. Sept.23, 1963, No. 54104/66. Divided out of 1, 65, 795. Heading G2H. The subject-matter of the Specification is substantially identical to that of Specification 1,065,795, but the claims relate to liquid toner compositions not containing antioxidants.
Patent GB-1337005-A (GB)
Title: Amplifier circuits
IPC: G05B11/28
Filed: 1970-11-13
Abstract: 1337005 Gain control; pulse modulation systems VEREINIGTE FLUGTECHNISCHE WERKE-FOKKER GmbH 13 Nov 1970 [15 Nov 1969] 54238/70 Headings H3T H4L and H4R An amplifier circuit includes a network having two series-connected resistors, the network determining at least one parameter of the amplifier circuit, and periodic switching means of variable duty factor connected to the common point of the two resistors and so arranged as to switch periodically into and out of the network one of the resistors. Amplifier 32, Fig. 3, is provided with feedback by means of resistor 33, in conjunction with two series-connected resistors 30, 31, the junction point between which is periodically earthed by means of a switch 34 which may comprise a field-effect transistor. Switch 34 is controlled by a circuit 35 which produces a train of pulses whose width depends upon the value of the control voltage U st . The pulse repetition frequency is made higher than the frequency of the signal U e  so that the effective value of the series resistors 30, 31 is proportional to the control voltage U st . The arrangement may be used in a three-term controller (Fig. 5, not shown). Circuit for producing width-controlled pulses.- A sawtooth wave is fed from source 15 via resistor 23 to one input of a comparator 16, and a control voltage U K  via resistor 22 to the second input, sudh that whenever the sawtooth wave exceeds the control voltage U K  an output U T  is obtained from the comparator. The output pulses U T  are also applied to a stabilizer 24, the output of which is fed via resistor 21, together with the control voltage U st  to the input of an integrator comprising amplifier 18 with feedback over capacitor 19; the output from amplifier 18 comprises the control voltage U k .
Patent GB-1274560-A (GB)
Title: Driving units for producing simultaneous reciprocatory and oscillatory motion
IPC: B65G27/24
Filed: 1970-11-16
Abstract: 1,274,560. Combined reciprocating and oscillating drives. KUMAG A.G. MASCHINENFABRIK. 16 Nov., 1970 [19 Nov., 1969], No. 54364/70. Heading F2K. A driving unit for producing simultaneous reciprocating and oscillating motion, applicable to conveyers, consists of a plastics member with end discs 2a, 2b connected by integral helical webs 2c which, when disc 2a is reciprocated axially relative to disc 2b causes rotation of disc 2a. In the arrangement shown the disc 2b is connected to an armature 10 integral with a drive shaft 9, the armature being reciprocated by a solenoid 5 with a core 8. The latter includes an air gap 12 which is adjustable to vary the amplitude of movement by a worm gear 13, 14 operating a threaded spindle 7. In a simpler form, Fig. 2 (not shown), spindle 7 is adjustably carried in a threaded housing and is provided with a lock nut. Supplementary springs may be fitted between discs 2a, 2b or between disc 2b and the main housing.
Patent GB-1247608-A (GB)
Title: Production of optical fibres and apparatus therefor
IPC: G02B6/44
Filed: 1969-11-07
Abstract: 1,247,608. Bundling optical fibres. CANON K.K. 7 Nov., 1969 [7 Nov., 1968], No. 54574/69. Heading C1M. Apparatus for winding fibres a to form layers of fibres b for fibre optical bundles comprises a frame 2, 3 and a support 4 positioned on the circumference of the frame and having surfaces 4A which are parallel to the direction of winding and are slanted from the plane normal to the rotational axis 1 of the frame 2, 3. The fibres b are then secured together by an adhesive at the area of the support 4; a number of layers positioned together over a flat board and the bundle cut by a cutter (6) and the ends of the cut bundle polished. In alternative embodiments to that shown, the support 4 is formed by two arms each with surfaces similar to 4A or by a board on which pairs of pins are secured to give the parallel angled surfaces.