baber/WOPTO huggingface dataset:
Patent GB-1274437-A (GB)
Title: Improvements relating to positioning apparatus
Inventor: CAROLI ITALO
IPC: B23Q1/28
Filed: 1970-06-09
Abstract: 1,274,437. Templates. DBM INDUSTRIES Ltd. 9 June, 1970, No. 27877/70. Heading B4X. [Also in Division B3] A positioning apparatus for placing a workpiece at a selected location on a drill or milling machine corresponding to a predetermined position on a working template 24 carried by the apparatus comprises a body frame 10 having a viewing window 18, means for enabling the positioning apparatus to be moved so that the workpiece can be placed at said selected location, and a sighting mechanism 100 for locating the predetermined template position, e.g. bores 25, including a pair of reflective surfaces 102, 104 that are spaced apart and supported on the frame 10, one of the reflective surfaces 102 being visible through the viewing window 18, with the other reflective surface 104 being optically aligned therewith and being movably supported with the frame 10 to enable locating the predetermined template position. The workpiece and the template 24 are initially positioned on the frame 10 by means of a common dowel pin. The bores 25 in the template are engageable with a spring biased locking pin 156 to position the apparatus at a position pretermined by the template. The locking pin 156 is contained in a cover plate 152 which is mounted on a work-table 152<SP>1</SP>. To move the apparatus a lifting device (50) (Fig. 3, not shown) is actuated to lower feet containing rolling balls or castors and thereby raise the apparatus which is then moved over the cover plate. The lifting device includes articulated levers and winching mechanism operated by external handles. The reflective surface 102 is pivotable about pin 106 by means of an external handle and the reflective surface 104 is mounted in a block 108 which is slidable along a guide 112 by means of an external actuator. Internal fluorescent lights 116 may be provided.
Patent GB-599777-A (GB)
Title: Improvements in or relating to pressure cookers
IPC: A47J27/08
Filed: 1945-10-23
Abstract: 599,777. Cooking-vessels. EKCO PRODUCTS CO. Oct. 23, 1945, No. 27882. Convention date, June 11. [Class 123 (i)] A pressure cooker 10 of the type having an elliptical opening 13 through which a similar shaped lid 14 is passed and then rotated through 90 degrees to bring the flange 15 into engagement with the cooker flange 12, comprises a bridgepiece 24 adapted to fit into recesses 25 provided in the handles 26 and an operating knob 30. The operating knob 30 is secured to a spindle 19 which is secured to the lid 14 by a nut 20, the inner face of the knob being fitted with a proiection 36 the upper face 38 of which engages with a ledge 37 in the ferrule 22. When the lid has been inserted into the cooker body and the ends of the bridge-piece 24 positioned in the recesses 25, the operating knob 30 is rotated through 90 degrees when the projection 36 comes opposite a recess 35 in the ledge 37 permitting the operating knob 30 to move upwards under the influence of the spring 33 and so raise the lid 14 into its operating position when it is held by the pressure of spring 33.
Patent GB-812728-A (GB)
Title: A method of producing viscose rayon staple fibres with a particularly high degree of crimping
IPC: D01F2/08
Filed: 1956-09-12
Abstract: Viscose rayon staple fibres with a high degree of crimping are made by spinning unripe viscose into a spinning bath having a temperature of 65 DEG  to 70 DEG  C. and containing sodium sulphate, zinc sulphate and not more than 110 grams per litre of sulphuric acid, the sodium sulphate content being such that the spinning bath has a specific gravity of at least 1.3 at 43 DEG  C., stretching the threads in an intermediate bath containing sulphuric acid, cutting the threads into staple lengths and then decomposing them in a hot, acid bath.  Examples are given.
Patent GB-975109-A (GB)
Title: Improvements in or relating to storage hopper installations
Inventor: ALLEN PHILIP JOHN
IPC: B65G65/00
Filed: 1961-08-01
Abstract: 975,109. Endless conveyers. A. H. ALLEN & CO. (ENGINEERS) Ltd. July 31, 1962 [Aug. 1, 1961], No. 27955/61. Heading B8A. A hopper 1 for storing grit material is fed from an endless conveyer 14 driven by a motor 22 mounted on a platform 23. The platform is pivoted, and by adjusting a bolt 28 the axial length of the conveyer is adjustable. The material 33, after passing over a grid 8, is fed to the bottom of the conveyer 14 by a worm 11. Discharge of the hopper into a lorry 35 is controlled by a quadrant gate (not shown) operated by an arm 39 and handle 42.
Patent GB-1107275-A (GB)
Title: Counting device
IPC: H03K23/74
Filed: 1965-07-02
Abstract: 1,107,275. Counters. INTERNATIONAL STANDARD ELECTRIC CORPORATION. 2 July, 1965 [3 July, 1964], No. 28072/65. Heading G4D. [Also in Division H3] Each stage of a multi-stage pulse-counting circuit consists of a core of magnetically hard material 7, Fig. 2, and a core of magnetically soft material 8, carrying respective windings 9, 10 connected in series, and a relay, the changeover contact 2 of which is situated in the resultant of opposed fields produced by the windings 9, 10 and is arranged to remain unoperated in its normally closed position 4, when the windings are energized by a pulse from a pulse source 12, and to be operated to contact the normally open terminal 3 by the remanent field of the hard core 7 when the windings are de-energized at the end of a pulse. The pulse source 12 is thereby connected to the next stage, which responds to the next pulse, and so on. A contact 15, associated with each hard core, 7, registers each count, and when all stages S1 to Sn have been operated, a resetting pulse source 14 is actuated, and this demagnetizes all the hard cores 7 via diodes 13. The relay may be a reed-type (Fig. 1, not shown), the moving contact (2) being biased against contact (4) by spring means, or by the effect of a permanent magnet (not shown). The cores (7, 8) and the windings (9, 10) are arranged to produce zero net magnetic field in the region of the moving reed contact as long as both windings are energized. Alternatively a balanced armature relay (Fig. 3, not shown) may be used, the contacts being arranged on and adjacent to the armature in known manner (not shown).
Patent GB-919947-A (GB)
Title: Semiconductor device
IPC: H01L23/488
Filed: 1961-08-02
Abstract: 919,947. Semi-conductor devices. WESTING- HOUSE ELECTRIC CORPORATION. Aug. 2, 1961 [Sept. 6, 1960], No. 28088/61. Class 37. In a semi-conductor device, metal support plates 10, 14 having a coefficient of expansion substantially the same as that of a semiconductor wafer 11 are soldered to opposite faces of the wafer and at least one further metal plate 20 (23), having a similar coefficient of expansion to that of plates 10, 14 is hard soldered or brazed to terminal member(s) 17 (18) and is soft soldered to plate(s) 10 (14). A power rectifier comprises a disc (1 inch diameter) of germanium 11 attached on one face to a molybdenum, tungsten or tantalum electrode 10 by a tin alloy solder 12 and on the other to a similar electrode 14 by a fused layer of indium 13 which thereby forms a PN junction with the germanium, the function being formed and the electrodes being fixed by heating the assembly to 615 C. The rectifier may also be made from a silicon disc using an aluminium solder 12 and a gold-antimony layer 13, the assembly in this case being heated to 895 C. Metal plates 20, 23 of molybdenum, tungsten or tantalum are silver soldered (at about 600 C.) to copper terminals 17, 18, these modified terminals then being tin soldered (at about 232 C.) to electrodes 10, 14 respectively. The device may be hermetically encapsulated by metallic members 27, 27<SP>1</SP> and insulating member 28 as shown. It is stated that this method of construction may be applied to other devices, e.g. controlled rectifiers and transistors. Specifications 777,985 and 832,067 are referred to.
Patent GB-1540517-A (GB)
Title: Grinding method and apparatus
IPC: B24B31/10
Filed: 1977-07-05
Abstract: For the purpose of all-over grinding of a workpiece (9) held on a chuck (8a), said workpiece is moved horizontally through an abrasive container (1) filled with abrasive (2). This horizontal movement may be supplemented by the rotary drive of the main shaft (8) carrying the chuck. The workpiece is brought into contact with the grinding material by a vertical movement of the chuck relative to the abrasive container (1). <IMAGE>
Patent GB-205339-A (GB)
Title: Improvements relating to the correction of the quadrantal error of a compass
IPC: G01C17/38
Filed: 1922-10-16
Abstract: 205,339. Morel, A. M. C., and Krauss, E. A. Oct. 16, 1922. Mariners' and aeronautical compasses. - The quadrantal error is compensated by two similar flat thin bars 58, 58<1> of soft iron connected together and disposed in the same horizontal plane below the centre of the compass, and symmetrically disposed relatively to the vertical line through this centre, the distance between their axes being about half their length, but preferably 0.48 of their length in order to avoid octantal error. The vertical distance of the bars from the card and their direction relatively to its axis are adjustable. Fig. 1 shows a construction suitable for an aeronautical compass. The bars 58, 58<1> are carried by a member 59 adjustable within the binnacle on a central vertical rod 60 by operating a screwed rod 61. The lower end of the rod 60 is formed as a large graduated washer 64 which is rotatable on the bottom of the binnacle upon slackening screws 65, 65<1>. Figs. 3 and 4 show a construction suitable for a mariners' compass. The bars 58, 58<1> are disposed below the compass box, being secured to a plate 75 adjustably fixed by screws 74, 74<1> to a cursor 66 slidable on a screwed rod 67 with one flat side by operation of a nut 69. The barrs are disposed at right angles to the line joining the usual compensating spheres or cylinders. To enable the use of a deflector such as the Thomson deflector described in Specification 4876/76 and to avoid quadrantal error due to induction of the needles on the Flinders bar the latter is replaced by two vertical soft-iron bars placed at 45‹ on either side of the centre line.
Patent GB-1262830-A (GB)
Title: Novel sydnonimine derivative
Inventor: MASHKOVSKY MIKHAIL DAVIDOVICH
IPC: C07D271/04
Filed: 1970-06-10
Abstract: 1,262,830. 3-(α-Methylphenethyl)-N-(phenylcarbamoyl)-sydnone imine. VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY KHIMIKO-FARMATSEVTICHESKY INSTITUT IMENI S. ORDZHONIKIDZE. 10 June, 1970, No. 28101/70. Heading C2L. The novel compound, 3-(α-methylphenethyl)- N-(phenylcarbamoyl)-sydnone imine, is obtained by reacting 3-(α-methylphenethyl)-syndone imine hydrochloride with phenyl isocyanate in a polar solvent in the presence of sodium acetate. Pharmaceutical compositions, having a stimulating effect on the central nervous system and suitable for oral administration, contain the above novel compound and pharmaceutically acceptable diluents.
Patent GB-1367848-A (GB)
Title: Zinc electrplating
IPC: C25D3/24
Filed: 1972-06-15
Abstract: 1367848 Lustrous zinc electro-plating EI DU PONT DE NEMOURS & CO 15 June 1972 [18 June 1971] 28152/72 Heading C7B An aqueous alkaline zinc cyanide electro-plating bath, e.g. containing NaOH, NaCN, Zn (CN) 2 , Na 2 CO 3  and sodium polysulphide, comprises polyvinyl alcohol degraded with iodate (instead of prior art H 2 O 2 ), as a brightening agent reaction product having a 10 wt per cent solution viscosity in water of 9 to 120 centipoises at 25C equivalent to an average molecular weight of 4, 000 to 17, 000. The reaction product is of a water-soluble vinyl alcohol homo- or co-polymer containing a major proportion of vinyl alcohol units, e.g. provided by an at least partially hydrolyzed vinyl acetate homo- or co-polymer containing up to 25% of non-hydrolyzed acetate units and/or containing up to 25% of other monomers such as methacrylate, and periodic acid or salt thereof e.g. NaIO 4  having a solubility of at least 0À01g/100g of water at 90 to 95C. The bath may also contain a pyridinium compound having at least one polar substituent, e.g. 1-benzyl-pyridinium-3- carboxylate.
Patent GB-976615-A (GB)
Title: A method of and apparatus for compression molding articles of plastic materials
IPC: B29C48/09
Filed: 1963-07-17
Abstract: 976,615. Moulding thermoplastic materials. UNION CARBIDE CORPORATION. July 17, 1963 [July 19, 1962], No. 28225/63. Heading B5A. Molten thermoplastic material from an extruder continuously discharging through a nozzle 3 is cut into measured portions by knife blades 6 and deposited in the mould cavities 5 of moulds 4 carried on a continuously rotating table. A measured portion 10, Fig. 3, is moulded by positioning a die 9 in a mould cavity 5 under pressure. The apparatus may consist of moulds with a plurality of cavities in conjunction with a number of nozzles supplied from a single ex truder and the mould table may be fixed with the nozzle or nozzles moving continuously Laminates may be produced by placing a disc or sheet of different material into the mould cavity prior to forming or placing the disc or sheet on top of the measured portion or forming a first portion, putting a disc on top of it and forming a second portion on top of the disc It is suggested that such laminates may be used as crown cap liners.
Patent GB-1036589-A (GB)
Title: Production of ethylbenzene
IPC: C07C15/073
Filed: 1963-07-17
Abstract: Ethylbenzene is produced by reacting benzene with a gas containing not more than 60% volume of ethylene together with an inert gas under conditions such that all the ethylene is reacted in the presence of aluminium chloride and a promoter, withdrawing liquid, separating catalyst complex which is returned to the reactor, processing the remaining liquid to remove acidic materials and separate overhead benzene, which is recycled to the reactor, from a first bottoms fraction which is distilled to recover an ethylbenzene overhead fraction as product and a second bottoms fraction further distilled to recover a polyethylbenzene overhead fraction which is eventually recycled to the reactor and continuously removing from the reactor inert gas containing benzene, whereby heat of reaction is absorbed, the gas is chilled to separate some benzene which is recycled to the reactor and scrubbed first with a portion derived from the first bottoms fraction to absorb aromatics, the resulting liquor being recycled to the process, and then with a polyethylbenzene material. Preferably the gas is first contacted with ethylbenzene, e.g. an intermediate fraction or bottoms from the benzene column or an intermediate fraction or overhead from the ethylbenzene column. The resultant liquor is recycled to the acid removal step which may comprise water and caustic washes. In the second scrubbing the gas is treated with polyethylbenzene, e.g. overhead from the polyethylbenzene column, and the liquor is recycled to the reactor. Scrubbing liquid may be cooled before or during the scrubbing. Alkylation may be effected at 85-105 DEG  C. and 1-130 atmospheres using an ethyl group to phenyl group ratio of 0.4-0.6.  The promoter may be hydrogen chloride or ethyl chloride.
Patent GB-225359-A (GB)
Title: Improvements in apparatus for supporting curtains or the like
IPC: A47H1/18
Filed: 1923-11-10
Abstract: 225,359. Heath, H. M. Nov. 10, 1923. Curtains, suspending.-A curtain rod comprises a helical wire spring 4, the ends of which are attached to hooks 2 formed by a partially severed tongue pressed out from an attaching plate 1. According to the Provisional Specification the rod may be a rigid one. Reference has been directed by the Comptroller to Specifications 19582/93 and 8509/04.
Patent GB-1284237-A (GB)
Title: Track device for toy vehicle
IPC: A63H18/02
Filed: 1970-06-11
Abstract: 1284237 Toy vehicle track TOMY KOGYO CO Ltd 11 June 1970 [24 Dec 1969] 28379/70 Heading A6S A track device for a toy vehicle comprises a spiral track member A (or A') which has at its inner and outer ends 3, 4 respectively means for interconnecting with other track members so that a track assembly having a spiral section may be constructed. The track is made from a material which is sufficiently resilient that the spiral member when suspended will expand under the weight of a toy vehicle and will contract when the vehicle is removed and has a central rib 2"and parallel flange edges 1 which are preferably roughened or formed in rack-teeth shape to improve frictional contact. The spiral is supported by means of a support means 5 attached to its inner end and located on a vertical stand D. The track may optionally be used flat.
Patent GB-1267967-A (GB)
Title: Process for continuously mixing plastics resins with solids insoluble therein
IPC: B29C48/405
Filed: 1969-06-04
Abstract: 1,267,967. Mixing synthetic resin ingredients. DYNAMIT NOBEL A.G. 4 June, 1969 [4 June, 1968], No. 28380/69. Heading B1C. [Also in Division C3] In a method of continuously mixing a plastics (especially phenolic) resin containing a foaming agent with one or more solid materials insoluble therein at least part of the solid materials (such as glass fibre or asbestos) is supplied to twin screws 8 having a conveying section of increasing pitch followed by a mixing section having a plurality of radially disposed members arranged uniformly round the circumference of the mixing section 5 and in which the plastics resin is supplied downstream of the point of supply of the solid material, the total residence time of the plastics resin in the conveyer section and in the mixing section being shorter than the time required for foaming of the resin to occur. As shown the solid material is supplied at 1, a hardener in powder form at 2 and a mixture of resin and blowing agent at 3, alternatively the hardenermay be introduced with either the solid material or the resin mixture. The screws may be closely meshing and may have one or more flights and rotate at 150-300 rev./min. The method may be carried out in a protective atmosphere of gas (e.g. fluorochloromethane) soluble in the foamable mixture, in order to exclude air.
Patent GB-279880-A (GB)
Title: Improvements in and relating to cylinder printing presses
IPC: B41F3/20
Filed: 1927-10-27
Abstract: 279,880. Schnellpressenfabrik Akt.-Ges. Heidelberg. Oct. 27, 1926, [Convention date]. Cylinder machines. - A cylinder machine of the kind in which the impression cylinder k is reciprocated in opposite direction to the reciprocating forme bed c is constructed with power - transmission members e.g. racks e, pinions f, and racks h, between the bed and the carriage i of the impression cylinder k. The bed c is reciprocated by a crank on the shaft a and connecting - rods b engaging bearing-blocks d arranged near the centre of the bed. The pinions f are mounted in fixed side frames, and the arrangement is such that the cylinder k makes a complete revolution while passing over the bed.
Patent GB-1355366-A (GB)
Title: Finned tail-assembly for fin-stabilised projectiles
IPC: F42B10/06
Filed: 1971-06-18
Abstract: 1355366 Making projectiles TAMPELLA AB OY 10 June 1971 [11 June 1970] 28651/71 Heading B3A [Also in Division F3] A fin assembly for a projectile is made by radially pressing a number of separate steel fins 2 into the softer material of a light metal alloy tube 10. Undulations 7 and 8 along the foot of each fin provide increased anchorage. The fins are pressed into the full material of the tube or into previously prepared grooves of smaller dimensions than the feet of the fins. The pressing is carried out either in the cold state, where a groove is provided, or, if not, after the tube has been heated to 250-350 C.
Patent GB-869449-A (GB)
Title: Method and apparatus for bending glass sheets
IPC: C03B23/027
Filed: 1959-08-24
Abstract: 869,449. Bending glass sheets. PITTSBURGH PLATE GLASS CO. Aug. 24, 1959 [Aug. 25, 1958], No. 28829/59. Class 56. To ensure lateral alignment of a glass sheet G on a bending mould 20 comprising at least one movable mould section 30 pivoted in relation to another section 22, at least one edge contacting member 50 is operatively connected to the movable section 30 so that the member 50 moves in an arcuate path having a vertical component substantially equal to the vertical distance that the contacted glass edge moves vertically to conform to the mould shaping surface as the mould moves from the spread to the closed position. As shown in a three part mould, two members 50 on the same side of the mould are connected to lever arms 40 having weights 42 by which the end sections 30 are pivoted to the closed position. Each member 50 comprises an apertured bar 52 with a flexible cover 54 of fibre glass, absestos or the like secured by staples 56, the member 50 being secured as by welding to the arm 40. During the bending, the member 50 moves horizontally as between the points 62 and 64 along the edge of the sheet G so that the edge does not suffer distortion or have undesirable stress patterns. The glass sheet G is initially aligned at each end by supporting members 34 having spaced tabs 36 as in Specification 784,115. Reference has been directed by the Comptroller to Specification 784,115.
Patent GB-919936-A (GB)
Title: Method of making 4,4-di(halomethyl)diphenyloxides
Inventor: DOEDENS JAMES DIRK
IPC: C07C43/29
Filed: 1961-08-09
Abstract: A 4,41-di(halomethyl)diphenyl oxide is made by halomethylation of diphenyl oxide by heating with formaldehyde and hydrogen chloride or hydrogen bromide in an acidic reaction medium, wherein the reaction is carried out in the presence of an acidic solvent which contains phosphoric acid and/or sulphuric acid and acetic acid.  Preferably the phosphoric or sulphuric acid is in the proportion of 15 to 30% weight of the reaction mixture and acetic acid is in the proportion of 10 to 40% weight.  The hydrogen halide may be used as a concentrated aqueous hydrochloric acid or hydrobromic acid. Preferably 2 to 4 moles of formaldehyde or paraformaldehyde and 2 to 4 moles of hydrogen chloride or bromide are used for each mole of diphenyl oxide.  A reaction temperature of from 70 DEG  to 100 DEG C. for from 3/4 to 3 hours may be used.  The product is separated by cooling the reaction medium to 20-30 DEG C. to crystallize the product.  Detailed examples of the production of 4,41-dichloromethyldiphenyl oxide and 4,41-dibromomethyldiphenyl oxide are given.