baber/WOPTO huggingface dataset:
Patent GB-1443498-A (GB)
Title: Process and apparatus for separating supple sheets from a stack
IPC: B65H3/22
Filed: 1974-10-18
Abstract: 1443498 Feeding sheets G A H BIJTTEBIER 18 Oct 1974 [26 Oct 1973 (2) 27 June 1974] 45153/74 Heading B8R A process for separating one or more flexible sheets from a pile comprises compressing the pile near a pair of opposite edges, introducing sharp projections near said edges, stretching the sheet or sheets by moving the projections apart, and lifting the sheet or sheets off the stack. Two pressure elements 3 each having a projecting needle 16, Fig. 1, are lowered on to the pile 5 to compress it, moved apart and then raised. A plurality of needles may be carried by each element 3. The needles on the two elements may be inclined away from each other. The amount of projection of the needles may be adjustable. The elements 3 may be replaced by oval, polygonal, segmental or cylindrical members, rotated for stretching. A sheet may be separated from a pile, carried on the needles to a second pile of sheets of a different thickness, dropped thereon by unstretching, then separated together with a further sheet by the same apparatus. In one form, four elements 3, Fig. 14, are provided near the corners of the pile 5. Each head is lowered and raised by air in a cylinder 12, Fig. 16a. A needle 16 is carried by a member 15 actuated by air in a piston 22, the arrangement being such that the member 15 is first pivoted about a shaft 21 to cause the needle to penetrate the pile, and is then pivoted about a shaft 26 to cause horizontal stretching movement of the needle.
Patent GB-1203811-A (GB)
Title: Method and apparatus for background reduction
IPC: G03G15/16
Filed: 1967-10-05
Abstract: 1203811 Transferring developed images RANK XEROX Ltd 5 Oct 1967 [11 Oct 1966] 45378/67 Headings B6C and CA7 Background is reduced by applying to a developed image an electrostatic charge of a polarity opposite support, the particles in non- image areas remaining on the support. In another embodiment, the particles in non-image areas may be removed by a transfer step before transfer of the developed image to the final support (30) Fig. 7 (not shown) to that of the toner particles in image areas, so that toner particles in non- image areas i.e. those forming background become oppositely charged to those in image areas. Upon subsequent transfer of the developed image to a final support 24 only the particles in the image areas leave the image.
Patent GB-1273042-A (GB)
Title: Oxo synthesis of aldehydes and/or alcohols
IPC: C07C29/157
Filed: 1969-09-17
Abstract: 1,273,042. Oxo process. BADISCHE ANILIN- & SODA-FABRIK A.G. 17 Sept., 1969 [18 Sept., 1968], No. 45737/69. Heading C2C. Aldehydes and/or alcohols are prepared by reaction of olefinic compounds with CO and H 2  at elevated temperature and pressure in the presence of a carbonyl complex of a Group VIII metal modified with a 3-phosphapiperidine whose P and N atoms bear substituents . The complex may be prepared in situ by provision of a metal carbonyl or salt and the phosphapiperidine. Examples prepare butyraldehydes and butanols from propylene and C 9  aldehydes and alcohols from octene-1.
Patent GB-1298980-A (GB)
Title: An enzymatically active composition and a process for preparing it
Inventor: FRANKS NEAL EDWARD
IPC: C11D3/386
Filed: 1970-09-25
Abstract: 1298980 Insolubilized enzyme; dextran derivatives PROCTER & GAMBLE CO 25 Sept 1970 [29 Sept 1969] 45843/70 Headings C3A C3H and C3V A water-insoluble enzymatically active composition comprises a protease enzyme covalently bonded to a water-insoluble matrix having a formula in which the polyanhydroglucose group is waterinsoluble cellulose, starch, or an epichlorhydrincross-linked dextran, and X is an anion selected from halogen or an organic acid, said matrix containing from 0À5 to 1À5% nitrogen, said enzyme being insolubilized as a result of covalent bonding with the matrix. The enzyme may be subtilisin, pancreatin, pepsin, trypsin, chymotrypsin, collagenase, keratinase, elastase, papain, bromelain, aminopeptidase or aspergillspeptidase A or B. The Specification discloses reacting epichlorohydrin cross-linked dextran with isatoic anhydride to give an anthranilate ester of the polyhydroglucose compound, diazotizing the ester obtained to form a water-insoluble matrix and reacting the matrix with a protease enzyme to form the waterinsoluble composition.
Patent GB-1395570-A (GB)
Title: Draw rollers
IPC: F16C13/00
Filed: 1972-10-05
Abstract: 1395570 Heated rolls MASCHINENFABKIK RIETER AG 5 Oct 1972 [5 Oct 1971] 45882/72 Heading H5H [Also in Division F2] A roll 1, which is heated by a stationary induction coil 5, 6, 7, 8 has its surface temperature monitored by a sensor 11, a temperature compensating element 12 being positioned between the sensor and the inductor to prevent false readings due to the cooler mass of the inductor. The element may be a stainless steel short-circuit ring extending between insulator 13, 14 mounted against the flanges 7, 8 of the core piece 6 or an electric resistance heating element, Fig. 3. To restrict centrifugal air flow P annular insulators 18 and shortcircuit rings 19 may be included (Fig. 1). In an alternative embodiment the inductor is surrounded by a sheath of glass filament insulation and a short-circuit ring extending between the air flow restrictors only is used.
Patent GB-1395999-A (GB)
Title: Electrically heated seat for vehicles
IPC: A47C7/74
Filed: 1972-10-05
Abstract: 1395999 Electrically heated seats STATNI VYZKUMNY USTAV TEXTILNI 5 Oct 1972 [24 Jan 1972] 45935/72 Headings A4H and A4M An electrically heated vehicle seat comprises a seat portion (2) and a back-rest portion (1) formed by a layered covering material (3) stretched over a frame (4) and having an elastic inner filling (5), cavities (6) being formed within the material or between the material and the filling over the seat and back-rest portions, each cavity receiving a heating element (7) in the form of a resistive strip (8) fixed between two non-conductive layers (9), the heating elements being inter-connected by conductors (12) connected to a power supply. The non-conductive layers (9) comprise textile fabrics or synthetic foils, and at least the fabric side facing the resistive strip has a synthetic coating (10). The cavities may be formed by quilting the material (3). The heating system may include a thermal fuse (13) and a switch (14).
Patent GB-952922-A (GB)
Title: Preparation of substituted 3h-1,4-benzodiazepine 4-oxides
IPC: C07D243/20
Filed: 1961-12-22
Abstract: Compounds of general formula: <FORM:0952922/C2/1> where X is halogen, are prepared by treating a solution of a quinazoline of formula: <FORM:0952922/C2/2> where Y is halogen, in an inert organic solvent with dimethylamine at a temperature between -10 DEG C. and -50 DEG C. Specification 864,825 is referred to.
Patent GB-1022360-A (GB)
Title: Method of and apparatus for coating an article
IPC: C23C14/22
Filed: 1962-12-07
Abstract: In coating articles with particulate material by electrical gas discharge, the particles are held on the inner surface of a rotating carrier member, with the article held stationary at the centre, and the voltage applied between the carrier member (cathode) and the article is sufficient to balance the centrifugal force holding at least some of the particulate material on the inner surface.  Powder is fed into the bottom 7 of a rotatable jacketed chamber 6 mounted on ball bearings with a fixed enclosed chamber 1.  On rapidly rotating, the powder is distributed evenly over the vertical walls to form a coating 8, prevented from leaving the top by a rim 9.  Gas enters at an inlet 16 and flows into the interior of the rotating chamber, and passes out through the hollow central axis 18 after flowing over the powder layer 8. Voltage A.C. or preferably D.C. is applied and a glow discharge is generated, the powder being cathodically disintegrated. The article 10 being coated may be heated.  The flowing gas carries <PICT:1022360/C6-C7/1> off any vapours generated, and a wire mesh arranged on the exit tube 13 prevents a gas discharge within the tube.  Cooling liquid enters at line 29 and flows against the inner wall of the rotating chamber, over an inner wall 19 in the jacket to the outer jacket from which it discharges to a pipe 32.  The process may be applied to powder materials difficult to maintain in suspension in a gas.
Patent GB-1001474-A (GB)
Title: Methacrylate polymers, their production and use
IPC: F02B3/06
Filed: 1961-12-29
Abstract: Viscosity improvers and dispersant additives for lubricating oils, diesel oils, furnace oils, hydraulic oils and automatic transmission oils are oil-soluble alkyl polymethacrylates of which the alkyl groups have an average of at least 6 carbon atoms and which have a relative syndiotacticity of at least 87 (see Division C3).  The polymers are normally incorporated in mineral or synthetic oils to the extent of at least 0.1% and normally not in excess of 15%. Examples are given of the addition to solvent refined Mid-Continent petroleum lubricating oils, a petroleum lubricating oil with a naphthenic base, a highly paraffinic SAE-10 winter grade petroleum oil and a mineral oil hydraulic fluid of these polymers.  Typical polymers are lauryl methacrylate/methyl methacrylate copolymers, and the terpolymers containing also N-vinyl-2-pyrrolidone or vinyloxyethanol.ALSO:An oil-soluble alkyl polymethacrylate of which the alkyl groups have an average of at least 6 carbon atoms having a relative syndiotacticity of at least 87 is prepared.  Relative syndiotacticity is defined as the sum of the infra-red intensities at 9.05 microns less than at 9.40 microns added to that at 13.1 microns less than at 13.38 microns, that of the free radical polymer produced at - 20 DEG  C. being given the value 100 and that by Grignard polymerization at 0 DEG  C., the value 0 to produce the scale.  The polymer may either be one of an alkyl methacrylate containing from 6 to 20 carbon atoms in the alkyl group or one of a mixture of alkyl acrylates to give the average of at least 6 carbon atoms, e.g. a mixture of a major amount of a mixture of oxo-tridecyl and tallow methacrylates and a minor amount of methyl methacrylate, or of a major amount of lauryl methacrylate and a minor amount of methyl methacrylate.  The oil-soluble alkyl methacrylates are prepared by polymerizing an alkyl methacrylate having from 6 to 20 carbon atoms in the alkyl group or copolymerizing alkyl methacrylates having from 1 to 4 carbon atoms in the alkyl group with alkyl methacrylates having from 1 to 4 carbon atoms in the alkyl group, by free radical polymerization at 30 DEG  C. or lower.  Minor amounts of polar monomers, e.g. vinyloxyethanol, dimethylaminoethyl methacrylate, diethylaminopropyl-methacrylamide, N - vinyl pyridine, N - vinyl-2-pyrrolidone, methacrylic acid, acrylic acid, maleic acid, fumaric acid, their derivatives and esters, mesaconic acid, citraconic acid, itaconic acid and glutaconic acid and their anhydrides may also be present.  The polymers may be partially amidated or esterified.  Compositions containing from 0.1 to 15% of the polymers with functional fluids, e.g. polyphenyls, terphenyls, partially chlorinated biphenyls, poly-(oxyphenylene) benzenes, ethers, diesters of dicarboxylic acids and phosphates. Specified include biphenyl, p-terphenyl, dioctyl sebacate, or adipate, pentaerithritol tetracaproate, trialkyl phosphates, dialkyl monoaryl phosphates, monoalkyl diaryl phosphates and triaryl phosphates are disclosed.
Patent GB-1419190-A (GB)
Title: Leak junction structures ofr use in electrochemical electrode systems
IPC: G01N27/401
Filed: 1973-10-09
Abstract: 1419190 Leak junction INSTRUMENTATION LABORATORY Inc 9 Oct 1973 [10 Oct 1972] 46971/73 Heading G1N A leak junction for an electro-chemical system comprises two chambers, each having an opening and separated by a leak junction member 60 having a multiplicity of passages 80 therethrough. The passages are preferably parallel, of less than 0À5 micron width and are formed in a polymeric material (e.g. polycarbonate) at a density of at least 10<SP>8</SP> per square centimeter so that the electrolyte flow-rate through the passages is less than 0.1 microlitte per minute per square millimeter per cm head of electrolyte. The junction material is preferably hydrophylic and non-conducting and the junction preferably has a resistance of less than 100 ohms. A polycarbonate sheet can be formed into a leak junction member by ion bombardment followed by etching out of damaged material. The junction preferably comprises a first structure 48 having an inlet 52 and outlet 54 for the sample fluid and defining an opening where they meet and a second structure 70 having opening 74 for the electrolyte. The junction member 60 is held in place by a PTFE adhesive tape 64 having an aperture 66.  The leak junction 28 may be used in a blood pH measuring system (Fig.1). The reference electrode 36 is calomel with KCl electrolyte supply to the leak opening 74. The blood sample enters at 22 and passes via valve 24 to contact pH sensitive glass tube 20 in pH electrode 10 (with AglAgCl reference 16) and leak junction 28. After measurement, the sample is exhausted via valve 32 by vacuum pump 34. The angle of 60 degrees between inlet 52 and outlet 54 assists cleaning with cleaning solution between samples.
Patent GB-1203234-A (GB)
Title: Improvements in or relating to teeth holders and assemblies comprising teeth held in them
Inventor: PETERSEN GERALD ALGER
IPC: E02F9/28
Filed: 1967-10-16
Abstract: 1,203,234. Excavator teeth. G. A. PETERSEN. 16 Oct., 1967 [3 Jan., 1967], No. 47028/ 67. Heading E1F.  To permit of a tooth holder 8 accommodating teeth of two different proximal end thicknesses there is provided for insertion into the forward part of the stepped, tooth-receiving recess of the holder, when a tooth 11 of the lesser proximal end thickness is to be secured in the recess, a spacer 41 of an appropriate thickness for filling up the recess. The spacer is preferably self securing with the holder and a deformable retainer may be provided in the holder to bias the proximal ends of the tooth and the spacer against the holder.
Patent GB-1285917-A (GB)
Title: Semiconductor device fabrication
Inventor: BEAN KENNETH ELMORE
IPC: H01L23/29
Filed: 1969-09-24
Abstract: 1285917 Semi-conductor devices TEXAS INSTRUMENTS Inc 24 Sept 1969 [19 Dec 1968] 47053/69 Heading H1K A dielectric isolated integrated circuit is made by providing an etch-resistant layer 15 of silicon nitride between a polycrystalline semi-conductor region 17 and a monocrystalline semi-conductor region, etching the latter region selectively down to the layer 15 so as to leave a plurality of discrete monocrystalline islands 25 which are then covered by a further polycrystalline semiconductor layer 31, etching the region 17 completely down to the layer 15, and forming circuit components in the islands 25. Preferably the islands 25 are covered with layers 29 of silicon dioxide optionally covered by silicon nitride before the polycrystalline material 31 is deposited over the islands 25 and the exposed parts of the layer 15. The layer 15 may itself comprise oxide-on-nitride or even oxide-on-nitride-onoxide. Where an oxide layer is required on top of a nitride layer this may be achieved by direct deposition or by depositing polycrystalline Si on the nitride and thermally oxidizing the entire thickness of the polycrystalline layer. When the islands 25 are entirely N-type, as shown, they may be provided by diffusion or epitaxy with a surrounding layer (27), Fig. 6<SP>1</SP> (not shown), of N material prior to deposition of the polycrystalline material (31). P<SP>+</SP>-type regions (33), Fig. lA<SP>l</SP> (not shown), may be provided initially in the surface of the monocrystalline region (11B) for eventual incorporation into certain of the discrete monocrystalline islands 25, this being particularly useful in the manufacture of complementary NPN and PNP devices. In further modifications the original monocrystalline region may be replaced by polycrystalline material or comprises an N-type epitaxial layer on an N+-type substrate.
Patent GB-1174933-A (GB)
Title: Improvements in the manufacture of Building Panels
Inventor: HOWE ALAN COLIN SCOTT
IPC: B28B7/08
Filed: 1966-10-21
Abstract: 1,174,933. Moulding concrete building panels. JOHN LAING RESEARCH & DEVELOPMENT Ltd. 18 Dec., 1967 [21 Oct., 1966], No. 47122/66. Heading B5A. In a method of moulding a composite concrete building panel, a facing layer is cast and compacted by vibration in a horizontal position and then, while still green, is bonded under pressure to a core to produce a predetermined degree of penetration of the layer into the core. A mould assembly for effecting the method includes a frame 17, 20. Supporting a mould box 10 and hinged lid 11, the latter being supported in the open position by posts 22. Opposed mould sides 16 are adjustable by screws 24 to closely receive the lid and allow it to penetrate into the mould a predetermined amount governed by adjustable stops 26. A mix for producing a facing layer is supplied to the mould 10 and to a correspondingly shaped cavity in the plate 27 of the lid, and both layers are compacted by vibrators 19. The mould 10 is then completely filled with core concrete and the lid, with the facing layer in the green state is swung over to close the mould, pressure is applied to the concrete by joists 28 and clamping bolts 30. The cast panel is removed after raising the mould assembly, which is hinged at one end to a vertical position. The moulding spaces may be lined, e.g. by plastic sheets or textile panels, to impart a desired pattern on the panel surfaces; a parting agent may be applied to the lining. A power operated mould is described in which two adjacent walls can be swung down by pneumatic means to a horizontal position enabling the mould base to be removed with the moulded panel thereon and replaced by a fresh one.
Patent GB-1185399-A (GB)
Title: Sealed Containers.
IPC: B67B5/03
Filed: 1967-09-25
Abstract: 1,185,399. Sealed container; container closures. GERBER PRODUCTS CO. 25 Sept., 1967 [29 Dec., 1966], No. 47179/69. Divided out of 1,185,398. Headings B8C and B8T. One or more lengths of fracturable pressuresensitive adhesive tape 19<SP>1</SP> adhered across the body portion 20 and threaded sealing lid 21 of a filled resealable container are overlapped by a label 30. The lid 21 is formed with a stretched diaphragm panel when the container carries vacuum packed heat sterilized foods. The tension in the diaphragm is released which gives a lower resonance note, when the vacuum seal is broken, e.g. on opening the container. The tape may be applied as described in Specification 1,185,398.
Patent GB-1504228-A (GB)
Title: Halogen incandenscent lamp
IPC: H01K1/38
Filed: 1976-11-15
Abstract: 1504228 Glass to metal seals PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 15 Nov 1976 [18 Nov 1975] 47418/76 Heading C1M [Also in Division H1] A gas-filled halogen incandescent lamp having a glass lamp envelope in which at least two tungsten filaments are stretched between at least three internal current conductors of molybdenum, said lamp envelope comprising a vacuum-tight seal through which the leadthrough conductors extend, is characterized in that each leadthrough conductor has at one end an internal conductor portion which supports the filaments and at the other end an external portion extending outside the envelope and is in the form of a molybdenum wire having a minimum diameter of 400 Ám, in that at least the part of each wire which extends within the vacuum-tight seal of the lamp envelope is surrounded in a vacuum-tight manner by a glass sheath, and in that the sheath and lamp envelope both consist of an alkali-alumino-borosilicate glass having a coefficient of expansion of 31 to 37 x 10<SP>-7</SP>/ C. at temperatures between 0 and 300 C., the ratio between the diameter of the molybdenum wires and the wall thickness of the glass sheath being larger than 2 and each angle at which the glass of the lamp envelope contacts the glass of the sheath, measured through the glass of the envelope, being at most 90 degrees. The glass may consist of 77-81% by weight of SiO 2 , 12-15% of B 2 O 3 , 3À0-5À5% of Na 2 O and 1À5-2À5% of Al 2 O 3  with a trace of K 2 O, and the sheath may be in the form of a capillary tube or a coating.
Patent GB-959362-A (GB)
Title: Production of emulsifiable waxes
Inventor: JAHRSTORFER MICHAEL
IPC: C09G1/08
Filed: 1962-12-17
Abstract: Molten polyolefins having a molecular weight of between 1,000 and 50,000 are oxidized with oxygen or oxygen-containing gas under increased pressure and at a temperature between 130 DEG  and 250 DEG C. until 0.5 to 25 kg of oxygen has been absorbed for each 100 kg of polyolefin and the oxidation is carried out with intense agitation with an agitator output of from 1 to 15 kilowatts per 100 kg of polyolefin. Polyolefins exemplified are polyethylene, polypropylene, and a copolymer of ethylene and carbon monoxide containing between 1 and 3 carbonyl groups per 50 ethylene groups. The materials may be made by thermally degrading high molecular weight polyolefins. The products are easily emulsifiable waxes.
Patent GB-1236247-A (GB)
Title: A gantry for material handling apparatus
Inventor: LOW ALEXANDER CHARLES
IPC: B65G63/06
Filed: 1968-10-07
Abstract: 1,236,247. Gantry cranes. MAVOR & COULSON Ltd. 26 Sept., 1969 [7 Oct., 1968], No. 47516/68. Heading B8B. Apparatus for unloading ships comprises a tower 1 supporting a gantry 2. The gantry 2 has a lower trolley track with rails 5 and an upper track with rails 6. At the ends of the gantry 2 lifts 2A, 2B are provided to enable three trolleys 7, 8, 9 to circulate from one track to the other. Each trolley is controlled by an operator in a cab 11 and has lifting and lowering gear including a grab 10.
Patent GB-1058780-A (GB)
Title: Gyroscopic apparatus
IPC: G01C19/22
Filed: 1963-12-06
Abstract: 1,058,780. Spring mountings. AMERICAN BOSCH ARMA CORPORATION. Dec. 6, 1963 [Dec. 10, 1962; June 28, 1963], No. 48218/63. Heading F2S. [Also in Division G1] A gyroscope, e.g. a directional gyroscope or one used in an auto-pilot comprises a driving member (11), Fig. 1. not shown, a rotor (10), and universal joint means connecting the member (11) to the rotor and including an intermediate member (13), and pivots (14), (14A), (15), (15A) connecting the members (11) and (13) and the member (13) and the rotor (10) respectively, at least one of the pivots having means for developing a restoring torque about its pivot axis. Each of the pivots shown in Fig. 1 comprises grossed rectangular leaf springs 17, 18, Fig. 2, welded or brazed to or secured in slots in opposed part-cylindrical bars 19, 20, one end of the bar 19 being secured to a cylindrical retainer 21 and the other end of the bar 20 to a retainer 22. Relative rotation of the retainers 21, 22 about the axis a-a will be opposed by the flexing of the springs 17, 18. Each of the pivots thus constituted are mounted according to Fig. 1, not shown, and the member (11) is driven from a motor (8) to rotate the rotor (10). Relative angular displacements of the member (11) and the axis of rotation of the rotor about the (X-X<SP>1</SP>) and (Y-Y<SP>1</SP>) axes will be opposed by spring restraint in the pivots (14), (14A), (15), (15A). Further, if the rotor (10) rotates in a displaced position, the intermediate member (13) is forced into oscillation about the pivots, resulting in a reaction torque opposed to the spring restraint and dependent on the moment of inertia of the member (13). The spring restraint is arranged to be practically constant for reasonable displacements and the reaction torque varies with the square of the rotor speed, so that, at a certain speed the effects will cancel one another and the precessional period of the gyro will be a minimum.