baber/WOPTO huggingface dataset:
Patent GB-944741-A (GB)
Title: Vinyl chloride polymers
IPC: C08F14/06
Filed: 1961-12-14
Abstract: A crystalline vinyl chloride polymer of molecular weight above 10,000 and a Vicat softening point higher than 90 DEG C. determined with a load of 5 Kg according to A.S.T.M. Specification D-1525-58T is prepared by polymerizing vinyl chloride in the presence of a catalyst consisting of a transition metal compound and an organo-aluminium compound of formula: APR1n(OR11)mXp where R1 is an alyphatic or aromatic hydrocarbon radical of up to 10 carbon atoms, R11 is an alkyl, aryl or cycloalkyl group optionally containing an ethereal oxygen atom, X is halogen, n is 1 or 2, m is 1 or 2, p is 0 or 1 and n+m+p=3 under anhydrous conditions either in the absence of a solvent or in the presence of a hydrocarbon or halogenated hydrocarbon solvent for the monomer. The transition metal component may be in the form of a complex with an organic Lewis base containing nitrogen or oxygen. Fibres, films and manufactured articles may be made from the polymers.
Patent GB-1351038-A (GB)
Title: Method of hardening gelatin
IPC: G03C5/315
Filed: 1971-09-27
Abstract: 1351038 Hardening gelatine FUJI PHOTO FILM CO Ltd 27 Sept 1971 [30 Sept 1970] 44995/71 Heading C3H [Also in Division G2] Gelatine layers such as photographic emulsion or auxiliary layers are hardened by incorporating into the coating composition therefor a reactive halogen hardener, a reactive vinyl group hardener or a carbodiimide hardener and a salt of Na, K, Li, Mg, Ca or Ba and a volatile organic carboxylic acid such as formic acid, acetic acid or propionic acid, or carbonic acid, and drying the layer. Hardeners specified include dichlorotriazines, triacrylyltriazines, trisvinylsulphonyl-1 : 3 : 5-hexahydrotriazine, methylene-bis-acrylamide, methylene-bis-maleimide and n-propyl-allyl-carbodiimide.
Patent GB-1133862-A (GB)
Title: Improvements relating to sliver cans
Inventor: HILL JOHN
IPC: B65H75/16
Filed: 1965-10-25
Abstract: 1,133,862. Coiling sliver. WCB CONTAINERS Ltd. 1 Aug., 1966 [25 Oct., 1965], No. 45001/65. Heading D1F. A sliver can 5 houses an inserted unit comprising a sliver &c., - supporting platform 6 carried by a coil spring 7. A strap or cord 8 passes over a fastening bar or loop 9 secured to the underside of the platform and is anchored to the horizontal, lowermost coil of the spring so that the platform is restrained at a predetermined height in the can and the spring is under some compression even before sliver &c., is accumulated on the platform.
Patent GB-1531484-A (GB)
Title: Glass fibre optical signal distributor units
IPC: H04B10/272
Filed: 1975-10-31
Abstract: 1531484 Fibre optics signal distributer unit SIEMENS AG 31 Oct 1975 [31 Oct 1974] 45190/75 Heading G1A In a glass fibre optical signal distributer unit 1 optical signals in a plurality of optical waveguides 2 are received and converted into respective electri-  cal signals by opto-electric transducer 3. These signals are amplified 4 and fed to coupling devices 5 which are connected to electro-optical transducers 6. Each transducer 6 supplies a number p of separate glass fibres leading to associated receivers E 1 , E 2 , .... E p . The optical transducer 6 may consist of a plurality of optical fibres adjacent a common substrate incorporating a common luminescent diode Fig. 2 (not shown). Thus, one (T.V.) programme may be transmitted from each electrooptic transducer 6 to all the associated receivers E 1  - E p . However the apparatus may be modified by changing the nature of the optical transducer 6 and including a switching network. Each electro-optical transducer 6 may possess an output arrangement of p luminescent diodes Fig. 3 (not shown) with adjacent plug connections for the outgoing glass fibres. Each coupling device 5 is connected by a separate one of the illustrated p electric lines 12 to each adjoining electro-optical transducer. The corresponding receivers E 1  - E p  are connected via respective lines 14 for switching (T.V.) signals to be fed to the coupling device. Thus by sending a signal along the return line 14 a particular (T.V.) signal can be selected.
Patent GB-1402034-A (GB)
Title: Air operated device for insertion of tacks and the like
IPC: B25C1/00
Filed: 1972-10-02
Abstract: 1402034 Tack strips G INZOLI S IARRERA and E AROSIO 2 Oct 1972 [4 Oct 1971 27 March 1972 3 May 1972] 45260/72 Heading B8C [Also in Divisions B4 and F2] Tacks are mounted on a band of plastics material. One end of the band is anchored in a magazine of a nailing gun by a block 88 while the other end is loaded in the guide duct of the gun by a tear-off handle 87.
Patent GB-1511729-A (GB)
Title: Containers for bulk granular materials
IPC: B29C65/18
Filed: 1975-10-31
Abstract: 1511729 Linings for containers ZEPHYR PLASTIC PRODUCTS Ltd 14 July 1976 [31 Oct 1975] 45298/75 Headings B8K and B8P [Also in Division B5] A filling tube for a container liner, which may be of polyethylene, for bulk granular materials is made by placing either a sheet 12 or the inlet part of the liner 29 over a tapered mandrel 18, Fig. 2, to cause an upstanding lip to be formed and placing an inlet tube 11 over the lip and heat welding together the tube and lip. If a separate sheet 12 is used this is subsequently heat welded to the liner there being an aperture in the liner immediately below the inlet. The mandrel may be circular or non-circular such as square or triangular. The welding of the tube to the lip is effected by a pair of jaws 21 reciprocated automatically along rods 19 by a pneumatic cylinder. Each semicircular jaw is lined with a ring of fireclay insulating a metal hand connected to an electric heating element there being a glass-fibre tape coated with P.T.F.E. on each jaw face to provide a non-stick surface. A hard rubber ring faced with P.T.F.E. coated glass-fibre tape surrounds the bottom part of the mandrel and a sheet of hard rubber shields the liner 29 from the heat of the jaws.
Patent GB-1244248-A (GB)
Title: An improved pin contact for an electrical connector
IPC: H01R13/05
Filed: 1969-09-16
Abstract: 1,244,248. Two-part couplings. BUNKER RAMO CORP. 16 Sept., 1969 [23 Dec., 1968], No. 45504/69. Heading H2E. A pin contact has a pair of contact arms 20, of cantilever form, with outward ends 22 overlapping to form together a pointed end but so shaped as not to impede the inward movement of the arms when the pin is inserted in a socket. The pin may be rolled from a flat stamping with a parting line 18, and a plurality of contacts may be included in a plug for mating with complementary contacts in a socket.
Patent GB-1499834-A (GB)
Title: Coil-winding machines
IPC: H01F41/06
Filed: 1974-10-23
Abstract: 1499834 Winding coils PLESSEY CO Ltd 6 Oct 1975 [23 Oct 1974] 45763/74 Heading B3A In a machine for winding television scanning coils and similar generally saddle-shaped coils, wire 8 is led from a feed-output point 9 of reciprocable feeder means 4, 5, 6, 7 over a stationary mandrel 1 comprising core part 2 and detachable outer part 3, which are so shaped and arranged in relation to the part-circular path of point 9 that as wire 8 is fed there are formed curved coil end turns 8a and 8c, the longitudinal coil turns 8b, 8d being formed by the transfer of wire from one to the other of the coil end turns at the reversals of reciprocation of point 9. Wire feed arm 4 reciprocates over 180 degrees from the position shown in solid lines in Fig. 1 to that shown in dotted lines. During winding, the mandrel is heated by electric heating elements embedded in the mandrel, and after winding an electric current may be passed through the coil to further heat it and a pneumatic press 10 presses on the coil to consolidate the turns. The coil is removed by separating parts 2 and 3.
Patent GB-1011243-A (GB)
Title: Pulse repeaters and transmission systems using such repeaters
IPC: H04B3/18
Filed: 1961-12-21
Abstract: 1,011,243. Pulse repeaters. WESTERN ELECTRIC CO., Inc. Dec. 21, 1961 [Dec. 27, 1961; Dec. 29, 1961], No. 45789/61. Headings H3T and H4L. A pulse transmission system includes a transmission path comprising two conductors connecting a source of input pulse signals to a load through a pulse repeater which comprises a negative resistance device having two stable states and biased into one of the stable states a first path including one of the conductors for supplying energy from an end of the transmission path to the device and arrangements for providing a second path for the input signals from one of the conductors to the other conductor through the device whereby input signals within a predetermined amplitude range initiate a change in the stable state. Regenerated pulse signals are thereby produced and propagated towards the load. Included in the transmission path are arrangements for preventing reverse propagation of the regenerated pulse signals towards the sources. The repeater may be of the form shown, which is inserted in a transmission path between a pulse source 11 and a load 14. Negative-going pulses actuate the circuit 30-1, which includes a voltage controlled negative resistance diode VCD in parallel with the series combination of L-1 and R-1, a diode RD1 and a blocking capacitor C1 Current sources 16 and 17 provide a current to bias the negative resistance diode just into the upper part of its characteristic, above the second knee (at a (Fig. 2)). R.1 is adjusted so that the parallel combination as a whole possesses positive resistance throughout (curve n<SP>1</SP>). The negative input pulse switches the diode to the lower part of its characteristic (c) where it remains until current can build up in L.1 and R.1, when it switches back at e to f. This causes a positive pulse (see Fig. 3) to be propagated towards the load in circuit 30-2. To deliver a pulse of the same polarity as the input to the load two such circuits must be included in the transmission path, with the diodes RD1 poled in opposite directions and the resistors R1 differently adjusted (Fig. 4A, not shown). Embodiments are described which avoid having dissimilar circuits for consecutive repeater stages (Figs. 4B, 5-7, not shown).
Patent GB-1113484-A (GB)
Title: Improvements in or relating to surgical tubes
Inventor: JENKINS FRANCIS
IPC: A61M16/04
Filed: 1965-10-29
Abstract: 1,113,484. Catheters; administration of gases. WILLIAM WARNE & CO. Ltd. 19 Oct., 1966 [29 Oct.. 1965]. No. 45903/65. Headings A5R and A5T. In a tube, for insertion into the trachea or other passage for the administration of an anaesthetic cr other gas, having part of its length surrounded by a flexible bag joined to the tube, the interior of the tube is in commun-- cation with the interior of the bag; formed within the bore of the tube is a constriction which is situated, when the tube is operatively in position, distally of the communication between the tube and the bag so that, when gas is supplied to the tube, a pressure differential is established in the tube across the constriction to cause the bag to inflate and to effect a seal against the wall of the trachea or other passage. As illustrated, the ends 4 of a bag 3 are joined to a tube 1 which communicates through one or mcre passages 5 with the interior of the bag, a constriction 7 being formed in the tube so that, when gas is supplied to and through the tube in the direction of the arrows, the bag is caused to inflate as shown by dotted lines 8. The bag, which preferably is arranged towards one end 2 of the tube, may either be sealed to or be formed integral with the tube. The bag, which may be made either of expandable or of non-expandable material, preferably is made of rubber or of a plastics material; the tube preferably is flexible and may be made of rubber cr of a plastics material.
Patent GB-1016242-A (GB)
Title: Improvements in or relating to the manufacture of composite reinforced members
IPC: B23K20/227
Filed: 1961-12-27
Abstract: 1,016,242. Structural bars. K. GOTOH. Dec. 27, 1961 [Dec. 28, 1960], No. 46285/61. Heading E1K. [Also in Division B3] A method of making a composite reinforced member comprising providing a number of 'U' shaped grooves on the surface of an aluminium material, inserting a piano wire in each of the grooves and filling the grooves with an aluminium material. Aluminium strips 2 having 'U' shaped grooves 1 are positioned together, piano wire 3 is inserted in to the hole formed by the grooves- and the assembly rolled together to form a composite member. In a first modification an aluminium strip 10 having a number of grooves 11, bounded by projections 12, into which are fed piano wires 14 is passed between rolls to displace the projections into the grooves. In a second modification aluminium filler wire 23 is placed above the piano wire 22 prior to passing the strip between rolls 24, both wires being drawn into the grooves 21 by the movement of the strip. In a third modification the composite member, after leaving the rolls is curved and subsequently straightened between rolls to prestress the piano wire. The piano wire may be of an irregular section or electrically coated e.g. with zinc to improve bonding. The aluminium member may be initially preheated to 150‹C-250‹C.
Patent GB-1511708-A (GB)
Title: Electrical contact-bounce compensator
IPC: H03K5/1252
Filed: 1975-11-08
Abstract: 1511708 Compensating contact bounce in switching systems PLESSEY CO Ltd 22 July 1976 [8 Nov 1975] 46312/75 Heading H2H A contact bounce compensating assembly comprises a power supply terminal P, a resistor R of relatively high value, a bus-bar B, a number of output terminals O1, 02, a contact Cl, C2 associated with each output terminal, a resistor rl, r2 of relatively low value associated with each output terminal and a contact bounce compensator connected to the bus-bar. When one of the contacts, for example, the contact C1 is closed the bus-bar potential falls from the supply potential V to a low value v. The fall in potential is detected by a detector D which delivers an output vs to start a first delay device dl. At each bounce of the contact C1, the potential V reappears on the bus-bar and the detector delivers a signal rs which restores the delay device. When the bounces terminate, the device dl supplies a signal dsl after a predetermined time, the signal triggering a monostable circuit M1 to supply an inhibit signal is to the detector and starting a second delay device d2. The second delay device times an interval sufficient to ensure that the detector has been inhibited and at the end of the interval supplies a signal ds2. A second monostable circuit M2 delivers an output signal os which is supplied to the output terminal O1 via a unidirectional device U such as a rectifier. The output signal os supplies the desired potential at the terminal O1 connected to a load circuit.
Patent GB-1060311-A (GB)
Title: Improvements in and relating to the manufacture of crimped viscose rayon fibres
Inventor: MYTUM ERNEST
IPC: D01F2/10
Filed: 1962-12-11
Abstract: 1,060,311. Spinning viscose. COURTAULDS Ltd. Dec. 10, 1963, No. 46652/62. Heading B5B. Crimped viscose rayon filaments are made by extruding a viscose containing, by weight, 5-10% of cellulose, 5-10% of caustic soda, more than 0À05% of a modifier and a zinc compound in the proportion of 0À01-0À8% of zinc based on the weight of the viscose, at a salt figure of 3-14 into a coagulating and regenerating bath containing 5-14% of sulphuric acid, 0À5-4% of ZnSO 4  and more than 12% of Na 2 SO 4  to form incompletely regenerated filaments, stretching the filaments by at least 50%, cutting the stretched filaments into staple fibres, and crimping the fibres by relaxing them in a solution containing 1-5% of caustic soda, before completing the regeneration of the cellulose in the fibres. The zinc compound may be an alkali metal zineate, e.g. sodium zincate. The modifier may be polyethylene glycol of mol. wt. 600-6000.
Patent GB-1014480-A (GB)
Title: Improvements in or relating to sampling devices for boreholes
Inventor: STUART ROBERT WILMER
IPC: E21B49/06
Filed: 1964-11-19
Abstract: 1,014,480. Boring earth &c. AMERICAN COLDSET CORPORATION & CORE LABORATORIES Inc. Nov. 19, 1964, No. 47132/ 64. Heading E1F. Apparatus for cutting and recovering samples from the side wall of a borehole 14 comprises a body 11 supporting cutting means 12, 13 normally located within the body but outwardly and longitudinally movable to engage the wall and cut a sample of triangular cross-section. The cutting means comprises rotary wheels which are movable through an opening 50 to engage and cut the wall whilst the body is fixed in the borehole by pads 16. The wheels are followed by the lead section 51 of a telescopic, sample collector 85. The apparatus is raised and lowered in the borehole by a cable 15 and includes means 90 for determining the inclination and orientation of the sample. In modifications the collector is formed by the closed lower end of the body, and the body is a framework.
Patent GB-1387790-A (GB)
Title: Apparatus and method for stripping electrolytic cathodes
IPC: C25C7/08
Filed: 1973-10-10
Abstract: 1387790 Stripping electro deposited metals INTERNATIONAL NICKEL CO OF CANADA Ltd 10 Oct 1973 [10 Oct 1972] 47189/73 Heading C7B In the electro-winning of e.g. Cu, Ni, Co, Zn or Mn, the metal, deposited on a sheet cathode of e.g. Ti, is stripped by heating or cooling the deposit while applying suction thereto to effect removal. As shown, conveyor A supplies cathodes 12 bearing deposits 14 to a further conveyor 16 from which they are suspended during stripping. Hollow arms 20 are pivoted at 22 whereby their suction cups 24 are applied to the deposits (shown in phantom). The stripped deposits are removed on conveyor D. Water jets 34 cool the deposits during stripping. For Ni or Cu deposits, electrodeposition may be at 60-70‹ C and the deposits are maintained above 50‹C before stripping. A further conveyor C, (not shown) see Fig. 1 removes the stripped cathode sheets 12 for further treatment and re-use. Stripping is assisted by (1) using cathode sheets whose thermal expansion co-efficient differs by at least 25% from that of the deposit, (2) application of a release compound to the cathode sheet, e.g. an oil, grease or metallic soap or resinate and (3) by incorporating in the electrolytic bath 0.1-100ppm of an agent which induces stress in the deposit, e.g. guar gum, gelatine, benzotriazole, thiourea, animal glue or polyacrylamide for a Cu bath, or ethylenecyanohydrin, chloride ion, butynediol, a naphthalene sulphonic acid or saccharin for an Ni bath.
Patent GB-1141662-A (GB)
Title: Improvements in or relating to indication systems
Inventor: BARR JOHN DENZIL
IPC: H04N5/445
Filed: 1965-11-08
Abstract: 1,141,662. Television. RANK ORGANISATION Ltd. 20 Dec., 1966 [8 Nov., 1965], No. 47341/65. Heading H4F. In a television system in which the output of a camera is applied to a cathode-ray tube picture reproducer, such as a monitor or viewfinder, means are provided to modulate the intensity of the electron beam as it scans at least one line of the raster so as to produce a visual indication at a distance from the beginning of the line which is representative of a quantity to be indicated, such as the zoom or focus settings of the camera lens. In Fig. 1 the quantity to be indicated is represented by a potential from potentiometer 30 which is compared in circuit 30 with line-frequency sawtooth signals K from generator 38 and results in pulses E of duration determined by the potential. The pulses are applied to a gate 37 which is opened for a small number of lines (two as illustrated) in a period immediately following field flyback whereby the transmitted pulses B, which are used as bright-up pulses for the picture reproducer, result in the production of a bright line which is located above the top of the picture area. The line has a length determined by the magnitude of the quantity to be indicated whereby the position of the brightness transition represents the quantity. A signal to control gate 37 is produced in response to each field synchronizing pulse F which triggers a bi-stable circuit 31 to open a gate 32 and allows line synchronizing pulses L to pass to a counter 33. The count N is chosen so as not to be completed until after completion of field flyback. The output from the counter resets bi-stable circuit 35 and triggers a second bistable circuit 34. This controls a gate 36 through which the line synchronizing pulses pass to a second counter 35 having a count M corresponding to the number of lines in which the quantity to be indicated is to be displayed. At the completion of the count bi-stable circuit 34 is reset. The output D from circuit 34 comprises the control signal for gate 37. The total N + M is selected to be less than the number of lines during field suppression so that the displayed quantity is located outside the picture display area. A second quantity is displayed by providing a further combination of bi-stable, counter and comparison circuits. A differentiation circuit may modify waveform B to provide a moving spot indication instead of a variable-length line. Where two indications are provided one may be a line and the other a spot to prevent confusion. In a modified arrangement, Figs. 3 and 4 (not shown), sawtooth generator 38 is triggered by the line synchronizing pulses at the output of gate 36 and gate 37 is dispensed with. Reference is made to an arrangement in which the indication is produced below the picture area.
Patent GB-1413283-A (GB)
Title: Detergent compositions
IPC: C11D3/22
Filed: 1971-10-12
Abstract: 1413283 Washing powder UNILEVER Ltd 10 Oct 1972 [12 Oct 1971] 47397/71 Heading C5D A washing powder is prepared by (a) forming granules from an extrudable organic material comprising an anti-redeposition agent dispersed throughout each granule and (b) mixing the granules with other washing powder ingredients. The granules are prepared by extrusion. The other powder ingredients are spray dried. Ingredients specified include: anti-redeposition agents: copoly-(ethylene terephthalate/polyethylene glycol terephthalate), hydroxypropyl methyl cellulose, hydroxyethyl ethyl cellulose, other granule constituents: sodium tallow soap, sodium coconut soap, sodium dodecyl sulphate, other powder ingredients: nonyl phenol-ethylene oxide adduct, sodium tripolyphosphate, sodium silicate, sodium sulphate, a C 15  secondary alcohol-ethylene oxide adduct, tallow soap alkyl benzene sulphonate.
Patent GB-1037388-A (GB)
Title: Improvements in bottle pourers
IPC: B65D47/06
Filed: 1963-12-03
Abstract: 1,037,388. Bottle stoppers. J. P. BOWER. Nov. 23, 1964 [Dec. 3, 1963], No. 47772/63. Heading B8T. A bung 11 of resilient deformable material has a hollow skirt 14 receiving a bottle pourer 12 provided with a tapered portion 13 which, when the pourer is forced downwardly, engages the tapering internal surface of the skirt to thereby force the skirt against the bottle neck 18. To remove the assembly from the bottle, the pourer is pulled by its spout 22 to release the wedging action of the portion 13 followed by withdrawal of the bung. The pourer includes a liquid outlet passage 21 and an air inlet passage 23.
Patent GB-1115761-A (GB)
Title: Dry plaster
Inventor: CAMPBELL JOHN STRANGE
IPC: C04B18/02
Filed: 1963-12-03
Abstract: A plaster composition comprises calcium sulphate hemi-hydrate, hydrated lime and granulated or powdered gas concrete and optionally at least 0.01% by weight of a cellulose alkyl or hydroxyalkyl ether. The gas concrete, which preferably constitutes the whole of the aggregate for the plaster and 50% at least by weight of the plaster, is made by mixing a siliceous and/or argillaceous material with lime and a gas generating agent e.g. aluminium dust in the presence of water and hardening with steam under pressure.
Patent GB-1159727-A (GB)
Title: Electrostatic Printing.
Inventor: LYTHGOE ALAN LENNOX
IPC: B41M1/12
Filed: 1966-03-22
Abstract: 1,159,727. Electrostatic printing. LETRASET Ltd. 12 June, 1967 [22 March, 1966], No. 47906/68. Divided out of 1,159,726. Heading B6C. [Also in Division G2] The subject-matter of this Specification is substantially the same as that described in Specification 1,159,726, but the claims are concerned with the electrostatic printing of an indicium on to a carrier sheet.