baber/WOPTO huggingface dataset:
Patent GB-1467465-A (GB)
Title: Injection blow moulding
IPC: B29B11/08
Filed: 1974-05-13
Abstract: 1467465 Injection-blow-moulding; cooling SHOWA DENKO KK and NISSEI PLASTICS INDUSTRIAL CO Ltd 13 May 1974 [14 May 1973] 21138/74 Heading B5A In an injection-blow-moulding process, the parison is cooled in the injection mould, subsequently reheated and blow-moulded, the injection mould having a plurality of cooling channels distributed regularly around and extending parallel to the axis of the mould cavity, the flow of cooling fluid in each channel being independently regulated. As shown in Fig. 2, the injection mould comprises inner and outer parts 1, 1<SP>1</SP> defining therebetween channels 14 for cooling fluid, equally spaced around the axis of the cavity and having inlets 15 and outlets 16. Plate 2 carries an injection mandrel co-operating with mould 1 to define mould cavity 3. Injection platen 17 incorporates runners, torpedo 18, sprue 19, &c. The flow of cooling fluid is regulated to provide final blown articles of uniform or non-uniform wall thickness. The parison may be of polypropylene.
Patent GB-1436974-A (GB)
Title: Commercial fixed-bed acrylonitrile or methacrylonitrile process
IPC: B01J27/192
Filed: 1974-05-14
Abstract: 1436974 Ammoxidation process STANDARD OIL CO 14 May 1974 [15 June 1973] 21196/74 Heading C2C [Also in Division B1] Acrylonitrile or methyacrylonitrile is produced by the reaction of propylene or isobutylene, ammonia and molecular oxygen in the presence of an oxidation catalyst in a fixed bed reactor containing one or more tubes using two catalysts in each of one or more of the tubes of the fixed-bed reactor. the first catalyst being a catalyst comprising an essentially inert support material with an outer surface and coating of a catalytic material strongly adhering to the outer surface of the support and the second catalyst consisting essentially of the catalytic material, and arrnging the catalysts in the tube of the fixed-bed reactor in such a manner that the first catalyst contacts the reactants first and the second catalyst contacts the reactants subsequently. The catalytic material may have the formula wherein A is an alkaline metal, an alkaline earth metal, Sm, Ta, Tl, In, Ga, B, P, As, Sb or mixtures thereof, B is nickel, cobalt, magnesium and/or manganese, a is 0 to 8, b is 0 to 20, c is 0À1 to 10, d is 0À01 to 6 and x is a number as required.
Patent GB-675584-A (GB)
Title: Improvements in or relating to high temperature turbines
IPC: F01D25/16
Filed: 1949-08-16
Abstract: 675,584. Turbine rotors. GASTURBINE MAATSCHAPPIJ N.V. Aug. 16, 1949 [Aug. 23, 1948], No. 21325/49. Class 110(iii) The portion 1 of a rotor adjacent to or constituting a shaft portion is hollow and has inlet and outlet passages, 4 and 6 respectively which communicate witli the atmosphere, the inlet passages 4 being nearer the axis of the rotor than the outlet passages 6, and an annular row of vanes 9 is fixed within the hollow space to assist the centrifugal circulation of the cooling medium. The outlet passages 6 which are formed in the thin wall of the rotor surrounding the hollow space are radially disposed, and the inlet passages 4 are inclined to the axial direction and may have inlet guide vanes at their entrance ends. Radiation baffles 11 are disposed in an extension of the hollow space 3 to protect the shaft and the vanes 9 against heat radiation. A screen 12 pre-- vents air from the passages 6 passing back to the inlet passages 4.
Patent GB-975929-A (GB)
Title: Improvements in and relating to nuclear reactor fuel elements
Inventor: PEARSON JAMES ALASTAIR
IPC: G21C3/32
Filed: 1961-06-13
Abstract: 975,929. Nuclear fuel elements. C. A. PARSONS & CO. Ltd. May 31, 1962 [June 13, 1961], No. 21333/61. Heading, G6C. A nuclear reactor fuel element of the kind in which the nuclear fuel is housed in a number of tubes having any desired cross-section and a cooling fluid is circulated over the surfaces of the tubes, e.g. such as is described in Specification 873,552, is fitted with a closely fitting sheath over its outer periphery having apertures to permit cooling fluid flowing over the outer surface of the sheath in one direction to pass through the sheath and join fluid flowing inside the sheath in the reverse direction, the tubes being supported independently of the sheath. Referring to Fig. 2, the sheath 7 has a number of apertures 12 which allow some of the fluid to by-pass the end of the element remote from the inlets and outlets of a re-entrant cooling system. The apertures 12 may be positioned between or over the fuel-containing tubes, preferably the latter since the fluid passing through the apertures then passes on to the outer surface of the tubes and assists the cooling. The element is located in a container sealed at the bottom with an annular space between the container and the element towards the end of which the apertures produce a diffuser effect which results in a reduction of the pressure drop in the annular space.
Patent GB-584036-A (GB)
Title: Improvements relating to roofing tiles
IPC: E04D1/34
Filed: 1944-11-01
Abstract: 584,036. Roofs. TURNERS ASBESTOS CEMENT CO., Ltd., and ASHMAN, H. W. Nov. 1, 1944, No. 21370. [Classes 20 (iv) and 87 (i)] An asbestos-cement roofing tile or sheet is stepped at 3 and provided with an upturned upper edge 1 and a downturned lower edge 2. The tiles are of a width to span the rafters 4 to which they are secured by nails 6 which serve also to hold down plates 5 provided with pins 7 which are bent over at 8 to secure the lower edge of an overlying tile.
Patent GB-885576-A (GB)
Title: Improvements in or relating to the production of ammonium salts of organic carboxylic acids or ester-acids
IPC: C07C63/00
Filed: 1960-06-17
Abstract: The ammonium salt of an organic carboxylic acid or of an ester of a di- or polycarboxylic acid containing at least one free carboxyl group is made by reacting the acid or ester in solution in dimethylformamide with ammonia, preferably by passing the stoichiometric amount of gas into the solution, and separating the ammonium salt.  Suitable acids are aliphatic mono-and dicarboxylic acids, such as myristic or adipic acid, or aromatic carboxylic acids, such as benzoic, o-phthalic, terephthalic, isophthalic and trimesic acid.  Suitable esters include the hemi-esters of adipic and phthalic acids and mono- and diesters of trimesic acid.  The process may be effected batchwise or continuously.
Patent GB-790074-A (GB)
Title: Improvements in and relating to textile spinning machines
Inventor: HARDACRE WILLIAM
IPC: D02J1/22
Filed: 1955-07-25
Abstract: 790,074. Stapling fibres; roller arrangements in textile spinning machines. COURTAULDS, Ltd. July 24, 1956 [July 25, 1955], No. 21408/55. Drawings to Specification. Classes 120(2) and 120(3) A spinning machine for converting a number of continuous filamentary tows into yarns comprises pairs of back and front rollers and, in place of the normal carrying rollers between the said pairs and interchangeable therewith, an attachment comprising a shaft carrying a series of star wheels, one for each tow. so fitted that the drive for the star wheel shaft is derived from a drive to either the front or back rollers and the axis of the star wheels lies parallel to the rollers and is so located that tows subjected to draft between back and front rollers pass through the path swept by the teeth of the wheels. An adjustable bar may be fitted to the attachment for guiding the tows into the appropriate path. Specifications 582,949, 727,782 and 734,937 are referred to and Specification 511,867 is referred to in the Provisional Specification.
Patent GB-938439-A (GB)
Title: Improvements in or relating to building structures
Inventor: BOLT HARRY COLLETT
IPC: E04B1/343
Filed: 1961-06-14
Abstract: 938,439. Buildings. TERRAPIN Ltd. May 23, 1962 [June 14, 1961], No. 21476/61. Class 20(1). In a building structure comprising a floor 1, uprights 2 carried by the floor, a roof 3 supported by the uprights and wall-defining panels 4 disposed between the uprights, each panel is provided with pins 8 and the floor with slotted brackets 5 whereby the panel can be raised pivotally and fixed between the uprights. The panel is secured to the roof by suitable latching means, see Figs. 4 and 5 (not shown) and adjacent panels are sealed by flanged strips positioned by spring clips, see Fig. 6 (not shown). Each bracket has a flange portion 10 which is screwed to the floor 1 and has a cam surface 34 for positioning purposes. Specifications 795,975, 901,483 and 901,484 are referred to.
Patent GB-331399-A (GB)
Title: Improvements in and connected with lined metal crucibles
IPC: F27D3/00
Filed: 1929-07-12
Abstract: 331,399. Triggs, W. W., (American Machine & Foundry Co.). July 12, 1929. Crucibles.-A crucible comprising an outer shell and a compressed non - corrodible lining, preferably of the metal sold under the registered Trade Mark " Amaloy " and comprising lead containing tin and phosphorus, is made by pouring the lining metal into the shell while rotating about its axis. If desired the thickness of the lining may be 5-16ths in. and determined by a core 4 clamped to a flange of the shell S by means of lugs 6, screws 10, and jaws 9. The core has a top plate 5 through which passes a control runner 7 and vent pipes 12 which are also used to admit centring pins 13 during assembly. The shell is rotated by a cup 14 with centring screws 22 and ball bearings 23, keyed to a shaft 15 driven through gearing 20. The inside of the shell is cleaned before casting but the outside is left dirty or intentionally greased. After casting air may be blown through a passage, not shown, in the shaft to cool the metal. The screws 22 are then released and the lined crucible lifted out. The clamps 9 are then released and screws 24 turned to pull out the core. The surplus metal 27 is then cut off and if desired the lining is polished.
Patent GB-614520-A (GB)
Title: Improvements in or relating to voltage impulse-generators
IPC: H03K3/537
Filed: 1946-07-18
Abstract: 614,520. Electricity supply. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. July 18, 1946, No. 21530. Convention date, March 22, 1943. [Class 38 (iv)] Condenser arrangements.-In an impulse voltage generator comprising in column form a plurality of condensers connected in parallel through resistances and discharging in series through spark-gaps, the condensers are so arranged that the potential differences between them during the charging thereof, occur in the transverse direction of the column and those portions located above one another in the axial direction of the column have, during the charging period substantially equal potentials. The device consists of separate condenser units, each unit comprising an insulated case 7 having a base 8 and a flange 9 of insulating material and housing a series connection 4 of condenser elements, the units being mounted one above the other to form a column, with the flanges serving as supports for resistances 5 and spark-gaps 6, as shown.
Patent GB-709750-A (GB)
Title: Improvements in or relating to multiply paper bags
IPC: B65D30/08
Filed: 1951-09-13
Abstract: 709,750. Multi-ply bags. MEDWAY PAPER SACKS Ltd.. WINSKILL, J. W.. and HOBDAY, G. M. Sent. 15, 1952 [Sept. 13, 1951], No. 21559/51. Class 94 (2) A multi-ply paper bag 1 is provided with a weakening line or a line of perforations 5 in the outer ply 3 whereby the whole or part of the outer ply may be removed in order that the bag may be used again, for example, for a lower grade product than the original contents. More than one ply may be removed, each ply being printed to indicate the products to be contained at each use. If is is not necessary for the bag to present a new appearance, only the part of the outer ply bearing the indication of the product originally packed in the bag may be remtoved, a paste line 2 between the outer and adjacent ply defining the part to be removed. In another embodiment, Fig. 3 (not shown), strips of thin cardboard or like material are provided along each end of the bag which strengthen the sewing and serve as an edge against which the outer ply can be torn off. The weakening lines may be extended to cover the gusset portion and may be provided on block bottom bags. Cut out portions or slits may be provided to facilitate the removal of the ply.
Patent GB-924972-A (GB)
Title: Improvements in or relating to ball joints
IPC: F16C11/06
Filed: 1961-06-15
Abstract: 924,972. Knitting; laminates. - FORD MOTOR CO. Ltd. June 15, 1961 [June 15, 1960], No. 21608/61. Drawings to Specification. Classes 74 (2) and 140. [Also in Group XXV] A bearing liner for a ball-and-socket joint (see Group XXV) is formed of a knitted fabric consisting at least in part of fibres of low friction synthetic resin material e.g. polytetrafluoroethylene or linear polyethylene. The liner is preferably knitted in sock form, so that at each stage in the knitting the most recently formed row of stitches lies on a closed contour the length of which decreases either at the beginning or end of the knitting or both. The liner may include threads of cotton, wool or acrylic resin which can be shrunk by treatment with steam or chemicals after the liner has been fitted over the ball. A plastic back-up layer may be provided between the liner and the socket, cotton threads being included in the liner to ensure adhesion. The back-up layer may be formed by injection moulding a thermoplastic material or by moulding or casting a thermosetting resin. Suitable materials are epoxy resins or nylon reinforced with glass fibre. A plurality of socks may be fitted over the ball, the outer socks being of cotton or cotton impregnated with synthetic resin, preferably a thermosetting resin which can be cured after assembly in the joint.
Patent GB-769449-A (GB)
Title: Improvements in head linings for vehicles
Inventor: BENTLEY REGINALD ERNEST
IPC: B60R13/01
Filed: 1954-07-24
Abstract: 769,449. Motor vehicle roof trim. FISHER & LUDLOW, Ltd. July 11, 1955 [July 24, 1954], No. 21673/54. Class 20(4)  A head lining 10 for vehicles comprises one or more sheets 11 of thermosetting or thermoplastic resinous material, portions of the material being bonded together by the application of heat to provide a series of transversely disposed pockets to receive listing rods 12. As shown a number of strips 11 of a textile base coated with polyvinyl chloride are welded at 13, 14, in a high frequency welding press to provide the pockets for receiving rods 12. The edges of the lining may be held in position by piping through which a securing cord passes, the piping being of similar material to the sheets 11 and having a projecting edge portion which is welded to the lining 10.
Patent GB-154710-A (GB)
Title: Improvements in mechanical display device
IPC: G09F13/00
Filed: 1919-09-03
Abstract: 154,710. Dieterich, E. A. Sept. 3, 1919. Moving apparatus.-A device for use in show windows, Christmas trees, toy structures, &c. for displaying merchandise, candles, &c. comprises an endless casing 20 containing an endless flexible carrier which causes display articles to travel along the casing. The articles are shown as toy animals &c. 31 of diaphanous material and containing an electric lamp 32. In Fig. 2 the carrier is shown in the form of a flexible shaft 40 having a wire spiral 41 fastened externally thereto, and is rotated by gearing 53, 54, 56 from a hand or power operated worm-shaft 58. Each article 31 engages the spiral 41 by a half-nut 42, which passes through an open slot in the casing 20. The sides of this slot are lined with electrically conducting strips 70, 71, insulated from the casing, for lighting the lamps 32. The rotating carrier may, however, be in the form of a rubber-coated flexible conductor having on its surface spiral rails for moving the articles 31 along, and a spiral conductor for conveying current to the lamps 32. In a modification, the rotating carrier is replaced by one moving bodily along the casing, either as a spirally-wound wire shaft provided at intervals with projections, or as sections linked together to form a chain, suitable provision being made in each case for conducting the electricity to the lamps 32. The casing also may be made flexible by being formed in sections linked together.
Patent GB-1060746-A (GB)
Title: High resolution photographic reproduction apparatus
IPC: G03B27/16
Filed: 1964-05-26
Abstract: 1,060,746. Photographic copying apparatus. TECNIFAX CORPORATION. May 26, 1964 [July 5, 1963], No.21681/64. Heading G2A. In photographic copying apparatus in which a transparent cylinder rotates about a tubular light source disposed along its axis, a collimator is disposed between light source and cylinder, the collimator being in the form of a large number of tubular passages lying radially to the light source, each passage having a length of two to four times its diameter. In the form shown, the original and copy film strips 12, 10 are carried in contact by an endless belt 14 round a transparent cylinder 8, the tubular light source 6 being disposed axially within the cylinder. Between cylinder and light source is disposed a further cylinder 18 having a plurality of light-collimating openings 20 therein. Alternatively this collimating cylinder may be formed of separate short lengths of tubing adhered together Fig. 3 (not shown), or of a number of thin perforated sheets secured together as a laminated structure, with all the perforations in register Fig. 5 (not shown). The collimating cylinder is preferably made of a heat-conductive material, so that it performs an additional function of reducing the heat incident on the films, and may further be air-cooled. Collimating the light in this way is stated to improve the resolution, and the light passages are oriented so as to minimize the 'banding' effect, i.e. uneven density of reproduction. The diameter and length of the collimating apertures, and their distance from the film, all have an effect on the degree of banding, resolution, and possible printing speed. Hence optimum conditions may be determined experimentally, Figs. (not shown), 6-9. A preferred length-to-diameter ratio for the apertures is 4:1.
Patent GB-1256392-A (GB)
Title: Selective production of 2-methyleneglutaronitrile
Inventor: WATANABE YOSHIHISA
IPC: B01J31/26
Filed: 1969-04-29
Abstract: 1,256,392. Dimerization process. MITSUBISHI PETROCHEMICAL CO. Ltd. 29 April, 1969 [30 April, 1968; 21 Sept., 1968], No. 21683/69. Heading C2C. 2-Methyleneglutaronitrile is made by dimerizing acrylonitrile in the presence of a catalyst which is a mixture of at least one metal halide MXn, in which M = Zn, Al, Ti, V, Fe or Co, X = halogen and n is a number equal to the valence of the metal M and at least one trialkylamine of the formula R<SP>1</SP>.R<SP>2</SP>.R<SP>3</SP>N in which R 1,  R 2 , R 3  are the same or different alkyl groups. The reaction may be effected with or without a solvent at 0-70 C. and at atmospheric pressure. Examples describe the preparation using (1) ZnCl 2  and triethylamine or tri-n-propylamine mixtures (2) AlCl 3  and triethylamine or tripropylamine and (3) CoCl 2  or CoBr 2  or FeCl 2  with triethylamine.
Patent GB-1024831-A (GB)
Title: Improvements relating to switching circuits
Inventor: TYZACK DONALD ERNEST
IPC: G06G7/28
Filed: 1961-06-16
Abstract: 1,024,831. Electric analogue calculating; electric selective signalling systems. ELECTRIC & MUSICAL INDUSTRIES Ltd. June 13, 1962 [June 16, 1961; June 5, 1962], Nos. 21778/61 and 21653/62. Headings G4G and G4H. [Also in Division H3] G4G.-An interpolator or extrapolator of the type described in Specification 796,994, is modified so as to utilize switching transistors instead of mechanical switches. Fig. 1 shows a circuit for deriving at terminal 16 an alternating voltage, the amplitude of which follows the parabolic function shown in Fig. 2. The input terminals 1, 2, 3 of transformers T1, T2 are supplied with cophasal 1000 c./s. voltages of amplitudes respectively X1, X2, X3 (Fig. 2). The number of turns of the secondary windings 8 of transformer T2 are related to the electrical difference from the centre taps of windings 6, 7 by a specified quadratic function. Counting circuits 17, 18 arrange that at one time, only one of switching transistors R1-R10 is conductive and only one pair of transistors S1- S13 is conductive. Transformers T3, T4 having specified ratios, are supplied from the combined outputs of transformers T1, T2. The outputs of T1-T4 are combined by transformer T5 so that the amplitude of output at any time is dependent on which three transistors are conductive. The ring counter 17 is driven by a pulse generator (not shown) so as to give a negative control voltage from each stage in sequence. A pulse derived twice in each counting cycle is passed by an OR circuit 19 to a further counter 18 which feeds transistors S1- S13 via isolating diodes. An output pulse from counter 18 may be used to control a second interpolator, the two interpolators alternately generating the output voltage at successive time points.  Machine tool control.-An interpolator of the type shown in Fig. 1 may be used for each coordinate in a machine tool control system; counters 18, 19 may be common to all coordinates. G4H. Digital / analogue converters. - The drawing accompanying the Complete Specification shows a digital/analogue converter. The transistors t 0 -t 9  are biased by a negative source P and a diode matrix DM controlled by four bi-stable trigger circuits Q1, Q4 so that only one of the transistors is conductive at any one time depending on the value of the binary number 0-9 stored in the bi-stable trigger circuits. The primary winding of transformer T is fed from a source of 1000 c./s. voltage, hence the amplitude at the output terminal will be a linear function of the binary number stored in the bi-stable circuits.
Patent GB-1147282-A (GB)
Title: Air conditioner
IPC: F24F13/20
Filed: 1967-05-10
Abstract: 1,147,282. Air conditioners. HITACHI Ltd., and KEIHIN HITACHI ENG. CO. Ltd. 10 May, 1967 [20 June, 1966], No. 21801/67. Heading F4V. An air conditioning unit which may heat, cool and filter air and which has a blower is provided with a detachable front frame 2 comprising an inlet grille 3, an outlet grille 4, a central panel 6 spacing apart the inlet and outlet and shutters 10, 9 which are moved to close the inlet and outlet respectively when the unit is inoperative. The panel 6 is pivoted at 7 and can be swung forward at its lower edge to increase the area of the inlet 3, shutter 10 also swings with panel 6. A spring (27, Fig. 16, not shown) supports panel 6 when swung forwardly. The shutters slide in grooves in extensions on the panel 6, have wear resistant plates at their ends of metal or a resin and springs prevent the shutters rattling in grooves or moving due to gravity. The shutters 9, 10 are connected together by a wire 17 passing round a pulley 15 so that when shutter 10 is closed by downward pressure on a projection 14 the wire will simultaneously raise shutter 9 to its closed position. If the distances h and h<SP>1</SP> that the shutters move are not the same additional pulleys can be provided. In a further embodiment (Fig. 17, not shown) in which the distances through which the shutters move is small relative to the depth of the panel 6, both shutters engage the same groove and move vertically in the same plane. The shutters may be retained in the open and closed positions by spring latches (21, 22, Figs. 11 and 12, not shown).