baber/WOPTO huggingface dataset:
Patent GB-1482161-A (GB)
Title: Ethylene oligomerization process
IPC: C07C2/36
Filed: 1974-09-23
Abstract: 1482161 Oligomerizing ethylene SHELL INTERNATIONAL RESEARCH MAATSCHAPPIJ BV 23 Sept 1974 [24 Sept 1973] 41307/74 Addition to 1353873 Heading C5E Linear α-olefins are produced by oligomerizing ethylene in the liquid phase using a reaction solvent selected from C 4 -C 7  α,#-alkane diols and C 3 -C 7  alkylene carbonates in the presence of a catalyst composition produced by contacting in the presence of ethylene and a polar organic solvent (a) a divalent nickel salt, (b) a boron hydride and (c) dicyclohexylphosphinopropionic acid or an alkali metal salt thereof. Suitable reaction solvents are 1,4-butane diol, 1,5-pentane diol, ethylene carbonate and 1,2- propylene carbonate. The oligomerization may be carried out at 80-150 C. and 35-176 atmospheres gauge.
Patent GB-1129262-A (GB)
Title: Improvements in or relating to propulsive devices for vessels
Inventor: CLARK RONALD
IPC: B63H5/15
Filed: 1964-10-09
Abstract: 1,129,262. Propelling ships; nozzles. HYDROCONIC Ltd. 11 Oct., 1965 [9 Oct., 1964], No. 41403/64. Heading B7V. A propulsive device for a marine vessel comprises a screw propeller 19, Fig. 1, which is lodged within a nozzle 20 containing four faired arms 14, 15, 18 that serve to straighten the flow of water aft of the propeller and thereby augment the propulsive thrust acting on the vessel, the arms 14, 15 being attached to a vertical bar 13, Fig. 2, to form a post 11 for a rudder 12 situated immediately aft of the nozzle. A bulb 16 may provide a bearing for a propeller shaft 21 and is aligned with a boss 17 on the propeller. The post 11 may be extended upwardly into the vessel so as to provide support for the nozzle. Alternatively, six arms (22), Fig. 4 (not shown), may be provided in place of the arms aforesaid, two of these six arms being vertically orientated and constituting the rudder post, and the remainder being disposed equi-angularly and radially with respect to the bulb 16.
Patent GB-1027357-A (GB)
Title: Improvements in or relating to methods of and apparatus for producing sheet material
IPC: B29C48/08
Filed: 1963-10-21
Abstract: 1,027,357. Web coating apparatus; bondedfibre fabrics. E. I. DU PONT DE NEMOURS & CO. Oct. 21, 1963 [Oct. 24, 1962], No. 41551/63. Headings D1L and D1R. [Also in Divisions B2 and B5] A sheet of thermosetting or thermoplastic resinous material e.g. methyl meth acrylate or polyethylene, is formed by passing the material, enveloped between carrier webs, between a rigid die and a flexible membrane forming the bottom of a heat exchange chamber. The membrane is forced against the material on the die surface, which surface may be corrugated, by the hydrostatic pressure of the heat exchange liquid in the chamber, the liquid being heated or cooled according to the type of material being used. Material 17 is deposited on covered web 3, covered by web 7, and then metred by rolls 6. The correct sheet is then drawn between die 4 and membrane 10, the material being heated or cooled by liquid 11 in heat exchange chamber 10 to form the finished sheet. The carried webs are subsequently stripped from the finished sheet onto rolls 19 and the sheet cut into lengths at 15 if required. Both the membrane and the die may be surfaced with a non-stick material e.g. polytetraflouroethylene or the membrane may be solely polytetrafluoroethylene. The carrier webs may be formed of polytetrafluoroethylene or other material having a smooth surface. The material 17 may be applied to a substrate to form a laminate or may be applied to a mat of e.g. glass fibres both of which are supported by web 3.
Patent GB-1286355-A (GB)
Title: Remote camera system
Inventor: LATADAY WILLIAM ROBERTSON
IPC: H04N7/18
Filed: 1970-09-01
Abstract: 1286355 Optical apparatus W R LATADY and N P KENWORTHY 1 Sept 1970 41788/70 Addition to 1232810 Heading G2J A remote camera system comprises a television camera 24, support means for the camera adapted for selective linear and rotary movement, an elongated small diameter lens tube 26, containing an optical relay system extending from the camera 24, a remotely adjustable mirror 28 on the outer end of the lens tube adapted to reflect an image into the end of the lens tube, the optical relay system being adapted to transmit the entire image reflected thereinto by the mirror to the  television camera, a television receiver 44 remote from the support means adapted to receive the image transmitted by the camera, and control means adjacent the remote television receiver for controlling the movement of the support means and the adjustable mirror 28, said elongated small diameter lens tube containing the optical relay system permitting the movement of the adjustable mirror into confined areas inacessible with conventional equipment. The camera and receiver may be coupled via cable 48, or by broadcast. Line 306 and apparatus 304 may allow videotaping or broadcasting of the signal produced by the camera.
Patent GB-982556-A (GB)
Title: Pumping plants
IPC: F04D13/00
Filed: 1962-11-05
Abstract: 982,556. Condenser systems for vapours ; pumping plant for cooling water. SULZER FRERES S.A. Nov. 5, 1962 [Nov. 24, 1961], No. 41813/62. Heading B1B. [Also in Division F1] In a pumping plant, suitable for supplying cooling-water to a condenser of a steam-turbine or a distillation apparatus, in which water is pumped, from a water-source, through the condenser and the water then flows through a water-turbine, which supplies energy for driving the pump, before being discharged to waste or being returned to the source, deficiency in energy for the water-turbine is made up by intermittently supplying additional water between the pump delivery side and the waterturbine inlet side and storing some of this water in an elevated reservoir, or a reservoir under pressure, which supplies energy to the water-turbine in the intervals in which no additional water is being supplied. In the plant shown, there are three condensers, 45, 46, 47, connected in parallel between pipes 29 and 55, two centrifugal pumps 3 and 5 driven by Francis water-turbines 4 and 6 respectively, two centrifugal pumps 7 and 11 driven by electric motors 8 and 12 respectively, and a reservoir 56. Pumps 3, 5, 7 and 11 are connected via pipe 2 to a water-source 1, e.g. a river or lake. The delivery pipe 29 of pumps 3, 5, 7 is connected to the three condensers via three pressure-raising pumps 35, 36, 37. The plant is initially filled with water drawn from source 1 through pipe 2, which is also connected to airchamber 13 and water-ring pump 14. If only condenser 45 is to receive cooling water, valve 61 of turbine 4 is opened so that pump 3 comes into operation, pump 35 is started, and valves 31, 41, 51 are opened. The water-level in reservoir 56 gradually drops until it reaches level 75, when float 68 starts motor 12 so that pump 11 introduces additional water from source 1 into the system. The water-level in the reservoir then rises until level 78 is reached, when pump 11 is stopped by float 68. If condenser 46 is to be used in addition to condenser 45, pump 7 is started-up by a manual switch. The water-level in the reservoir then rises until it reaches level 76 when pump 7 is switched off by float 66. The water-level in the reservoir now gradually falls to level 77 when pump 7 is switched-on again by float 66. If condenser 47 is also to be put in operation, pumps 3, 5 and 7 are continuously in use, and pump 11 delivers additional water when the water-level in the reservoir falls to level 75. The additional water required to cover the driving energy of the water-turbines may be introduced directly into reservoir 56 from a municipal supply system. If pump 3 or 5 is damaged and fails, the associated non-return valve 21 or 22 closes automatically and the associated turbine is stopped by servo-motor 58 or 59, respectively.
Patent GB-1236745-A (GB)
Title: Limiting circuits
Inventor: CHANOT GRIFFITH JOHN RAYMOND
IPC: H03G11/00
Filed: 1967-09-13
Abstract: 1,236,745. Transistor limiters; television. PROWEST ELECTRONICS Ltd. 14 June, 1968 [13 Sept., 1967], No. 41867/67. Headings H3T and H4F. A signal to be limited, such as a T.V. signal from which the synchronizing pulses are to be removed, is applied to a first controllable current device such as a transistor T1 which has one output (from the collector) fed forward to modify the reference voltage of a second device T2 (at its base) which defines the limiting level for T1 via, for example, a common emitter resistor R5 from which the limited output is taken. The limiting level is adjustable at RV. In a modification (Fig. 2, not shown) the transistors T1, T2 have respective emitter resistors and a common resistor R5 from which the output is again taken and to which the emitters are connected through diode connected transistors (T3, T4). Variation of R2 modifies the knee of the limiting characteristic; and frequency response is improved by shunting R2 with a capacitor.
Patent GB-1124106-A (GB)
Title: A new method of wattmeter measurements and a device for carrying the said method into effect
IPC: G06G7/161
Filed: 1965-10-04
Abstract: 1,124,106. Measuring power. CHARBONNAGES DE FRANCE. Oct. 4, 1965 [Oct. 5, 1964], No. 42036/65. Heading G1U. The power in an A, C. circuit having a power factor ° is measured by producing a sampling pulse of duration proportional to the voltage, sampling with it the current amplitude at an instant dephased by ° with respect to the peak current amplitude and measuring the mean value of the current samples. In a three-phase system, the line voltage between two phases Ph 1 , Ph 2  is applied to rectifier circuits via transformer TT to produce a reference voltage V m1  across capacitor C 1 , and a pulsating D. C. applied to the base of transistor T1 to periodically switch it on and off. It is shown mathmatically that the cut-off period of transistor T1 is approximately proportional to the applied line voltage, and that resistor R 3  may be adjusted to improve this proportionality. It is also shown that the pulses are phase shifted by ° relative to the peak current in the third phase. The output from transistor T1 is fed, via a Schmitt circuit T3, T4 to sharpen the pulse signal, to a switching transistor T6. The current in the third phase is fed via a current transformer to terminals a a<SP>1</SP>, and each time transistor T 6  becomes conducting, a sample of this current is fed to integrating amplifier T7, T8, T9 to produce an average output at b b<SP>1</SP>.
Patent GB-1007388-A (GB)
Title: Cooling arrangement of the sealed type for liquid-cooled internal combustion engines, more particularly on motor vehicles
IPC: F01P11/02
Filed: 1963-10-31
Abstract: 1,007,388. Cooling internal-combustion engines. FIAT S.p.A. Oct. 31, 1963 [Nov. 3, 1962], No. 43109/63. Heading F4U. A sealed cooling arrangement for liquid cooled I.C. engines comprises a variable volume reservoir containing part of the engine coolant and connected to the cooling circuit by two valves one of which opens when the pressure in the circuit exceeds that in the reservoir and the second of which opens when the pressure in reservoir exceeds that in circuit. As shown, a resiliently deformable spherical reservoir 11 of rubber of flexible plastics having a volume equal for example to 25% of the capacity of the cooling arrangement is connected through conduits 10, 8, 9 to fittings 6, 7 in the upper manifold 2a of a radiator 2 through which coolant from an I.C. engine e.g. of a motor vehicle, is circulated by a pump 5. The fittings 6, 7 contain valves 12, 13 biased by springs 13, 14, valve 12 opening when the excess pressure in the radiator is for instance about 0À6 atm. and valve 14 opening when the excess pressure in the reservoir is for instance about 0À05 atm. A pressure relief valve 16 prevents the pressure within the reservoir exceeding a differential of, for example, 0À3 atm. and is adapted to provide visual or acoustic warning when opened. To indicate the liquid level the reservoir material or the conduit 10 may be transparent or a transparent level gauge 17 may be arranged in the conduit 10. The reservoir may consist of a cylinder provided with a spring loaded piston.
Patent GB-1200533-A (GB)
Title: Improvements relating to joints for electrical cables
Inventor: MOLE LEON
IPC: H02G15/00
Filed: 1968-09-06
Abstract: 1,200,533. Cable joints. GREENGATE & IRWELL RUBBER CO. Ltd. 16 July, 1969 [6 Sept., 1968], No. 42410/68. Heading H2E. Metal sheathed cables are joined by forming an elastomeric cover B over each sheath a<SP>3</SP> at the cable ends, jointing the conductors a, applying a box B<SP>1</SP> over the cable ends and filling the box with a resin b<SP>3</SP>. The cover B which absorbs thermal or mechanical stresses induced by the cable in a radial direction is preferably formed by wrapping a polyethylene based tape tightly round the sheath a<SP>3</SP> and similarly forming a collar b<SP>4</SP> which absorbs stresses in a longitudinal direction. The conductors are jointed by a connector a<SP>1</SP> and the box B<SP>1</SP> is filled, for example, with an acrylic resin and p.v.c. chippings through an opening in the box B<SP>1</SP>.
Patent GB-1184368-A (GB)
Title: Apparatus for removing material from circular objects
Inventor: LEHMANN WALTHER E F
IPC: B29B17/02
Filed: 1967-09-19
Abstract: 1,184,368. Buffing tyres. AMERICAN MACHINE & FOUNDRY CO. 18 Sept., 1968 [19 Sept., 1967], No. 42588/67. Heading B3D. [Also in Division B4] An apparatus for sizing and removing material from the circumferential surface of a circular object e.g. a tyre comprises a band knife 113 mounted on a frame 11, a table 41 for supporting a tyre movable towards and away from and in an arc with respect to the knife and a template 95 fixed relative to the table and adapted to control the path of travel of the latter via a follower 61 secured to a plate 49 on the table. The table 41 is slidably mounted on a plate 31 which is pivotally mounted on a support 66, the latter being movable on slides 69 fixed to the frame; the plate 31 is rotatable about the pivot bearing 93 by means of a motor 89 which rotates a sprocket engaging with a chain 85 secured to the support 66. The template 95 is secured to the pivot bearing 93 and includes a pair of wings 169, 171 urged together by means of a spring 173. The distance apart of the wings is controlled by a wedge 183 raised and lowered via a screw 191, Fig. 7, driven by an electric motor 195, the motor also drives via a gear-box 189, a second screw 219 which is connected to a sensor 213. The tyre to be cut is mounted on an expansible hub 145 which is rotatable by means of a motor 147. In operation, a tyre is mounted on the hub and inflated, its diameter being checked by a feeler 157 adapted to contact the periphery of the tyre and, via a cable device, actuate a scale 155 visible through a window 153. A push-button is then operated so as to cause the support 66 to be moved by a ram 65 until a switch 63 on the follower 61 is actuated by a pin 175 on the template. A motor 59 is thereby actuated so as to move the table 41 forwardly until the periphery of the tyre contacts a plunger 133 of a switch 137. The table movement is then stopped and the motor 195 energized to move the sensor 213 towards the side of the tyre, the template then being adjusted simultaneously by the upward movement of the wedge; upon contact of the sensor with the tyre the motor 195 is stopped. The table is then moved to bring the follower out of contact with the template and the motor 89 operated so as to rotate the table assembly around the support to a start position. Upon moving the follower back into contact with the template, a drive motor for the knife and the motor 147 are started. The motor 89 is then started thereby rotating the periphery of the tyre about the knife 113. The rotary movement of the table is stopped when the latter contacts a switch 101. If required a buffing device having dressing wheels 237 may be incorporated in the apparatus.
Patent GB-1111244-A (GB)
Title: Friction collar assembly for supporting formwork on columns
IPC: E04G17/16
Filed: 1965-10-07
Abstract: 1,111,244. Shuttering supports. ECONOMY FORMS CORPORATION. 7 Oct., 1965 [3 June, 1965], No. 42670/65. Heading E1S. A clamp on a column particularly for supporting shuttering for casting concrete comprises a collar 16 supporting a second collar 14 by means of members 47 inclined outwardly and downwardly. The collars 14, 16 are of channel cross-section and comprise diametrically divided halves connected by screws. Each member 47 has a vertical tube engaging a socket between plates 29, 31 on the lower collar 16. An angle member 56 on the top of the member 47 engages the column and the plates 29, 31 of the top collar 14. The forms 13 are carried on adjustable platforms 43 engaging sockets in the top collar 14.
Patent GB-1488010-A (GB)
Title: Polymerisation of olefins using zirconium tetrachloride as catalyst
IPC: C08F4/06
Filed: 1974-10-02
Abstract: 1488010 Polymerization of styrene using ZrCl 4 ; hot melt adhesive SCHENECTADYMIDLAND Ltd 2 Oct 1974 [11 Oct 1973] 42699/74 Heading C3P Zirconium tetrachloride is employed as sole catalyst in the polymerization of monomer systems comprising styrene, α-methyl styrene or a tert-butyl styrene. In a typical Example (1) the monomers, α-methyl styrene and styrene were mixed with xylene, ZrCl 4  added over a period with cooling and thereafter the mixture stirred with water and separated twice and finally distilled. Other monomer starting materials exemplified are (2) α-methyl styrene, styrene and d-limonene, (3) p-tert-butyl styrene and styrene, (5) styrene alone and (6) styrene, ptert-butyl styrene, α-methyl styrene and dlimonene. The products may be used in hot melt adhesives together with paraffin wax and resinous ethylene vinyl acetate copolymer.
Patent GB-1433763-A (GB)
Title: Trasfers for the printing and dyeing of synthetic materials by dry transfer
IPC: D06P5/00
Filed: 1973-09-11
Abstract: 1433763 Transfer printing SUBLISTATIC HOLDINGS SA 11 Sept 1973 [21 Sept 1972] 42733/73 Heading D1B Transfers used in transfer printing are provided by applying to a base sheet e.g. polypropylene, polyethylene, or regenerated cellulose film or paper, a dye e.g. a disperse or basic dye which sublimes at 160 to 220C and an agent which absorbs infra-red radiation. The infra-red absorbing agent may be an N-tetraphenylbenzoquinone-diammonium salt, or a ferrous or ferric dhelate of a nitrosonaphthol. Mixtures of dyes particularly anthraquinones may be employed. The transfer may comprise a base-sheet which is transparent to infra-red rays the agent which absorbs infra-red radiation separating the coloured layer from the base-Sheet. The coloured layer may contain a binder of melting point above 220C e.g. an ester or ether of a polysaccharide or a cellulose ether of a C1 to C4 aliphatic alcohol. Synthetic materials e.g. polyamides, polyesters and polyacrylonitrile.
Patent GB-981678-A (GB)
Title: Process for the production of acrylonitrile polymers
IPC: C08F20/44
Filed: 1962-11-13
Abstract: Acrylonitrile alone, or with up to 15% of other polymerizable monomer, is polymerized in solution in dimethyl sulphoxide using an azobis compound as catalyst in the presence of sulphur dioxide as discoloration preventer and beta-styrene sulphonic acid or a salt thereof as chain transfer agent.  Comonomers exemplified are sodium allyl sulphonate and methyl acrylate.  The products may be wet spun into fibres of high whiteness.
Patent GB-1408305-A (GB)
Title: Boring heads
IPC: B23Q11/00
Filed: 1972-09-15
Abstract: 1408305 Boring heads O BAY 15 Sept 1972 [15 Sept 1971] 42975/72 Heading B3C A boring head has a head part 2 adapted to hold three cutting tools 6 wherein tool holders 4 are disposed in an offset arrangement in relation to one another in the axial direction of the head part, and the longitudinal axesof the tool holders are angularly spaced by more than 90 degrees. Preferably the angles are 100, 125 and 135 degrees in a cutting sequence and the cutters project different amounts radially. The tool holders are U-shaped members in dovetailed grooves 3, and are held by screws 15. The tools can be adjusted by a screw and a driver-neither shown-having a projection that fits into the slot 3 and engages the inner end of the shank 5. Screws 10 clamp the tools.
Patent GB-1490910-A (GB)
Title: Preparations for colouring molten thermoplastic polymers
IPC: C08K5/09
Filed: 1975-10-21
Abstract: 1490910 Pigment preparations; coloured polymers CIBA-GEIGY AG 21 Oct 1975 [22 Oct 1974] 43058/75 Headings C3P and C3R [Also in Division C4] Pigment preparations for the mass colouring of polymers comprise 10-70% of a pigment or polymer-soluble colourant and 90-30% of a carrier mixture containing (a) 51-95% of an alkaline earth metal or aluminium salt of a C 12  aliphatic carboxylic acid and (b) 49-5% of an elastomeric or thermoplastic polymer. In examples (a) is magnesium stearate, calcium, zinc or magnesium behenate, or magnesium erucate and (b) is ethylene/vinyl acetate copolymer, polyethylene, polystyrene, styrene/ butadiene copolymer, or a polyamide resin. The preparations are used to colour polyamides, e.g. polycaprolactam, or polypropylene.
Patent GB-1391148-A (GB)
Title: Reproduction camera
IPC: G03B27/32
Filed: 1973-09-13
Abstract: 1391148 Projection printing ESKOFOT AS 13 Sept 1973 [16 Oct 1972] 43094/73 Heading G2A Copy apparatus comprises a frame carrying a camera and a support for an original, the support being movable towards and away from the camera by means of an endless cord/pulley arrangement acting on two adjacent corners of the support, the corners co-operating with guide members of the frame. As shown, a photo-sensitive sheet is held by a cover 3 in a bellows camera (not visible) integral with a frame having two guides in respective columns 9 for an original table 8, the table being movable by means of steel wire cord attached to the table at each guided corner and to two counterweights 21 and passing over a series of pulleys and a helically grooved shaft 15 of a winding drum.
Patent GB-1438572-A (GB)
Title: Break or open-end spinning machine
IPC: D01H1/24
Filed: 1973-09-13
Abstract: 1438572 Open-end spinner H STAHLECKER and F STAHLECKER 13 Sept 1973 [23 Sept 1972] 43152/73 Heading DID In an open-end spinner, the rolling bearings and drive means of the rotor shaft are housed separately from the rotor, and are cooled by an air flow. As shown, Fig. 1, bearings 9, wharve 10 and 'belt 11 are enclosed by channel 12 common to a number of spinning units and having air outlets. Shaft-mounted blades 16 draw cooling air, possibly via filters, through openings 15, common channel 14 and opening 17. Alternatively, Fig. 3, a common chamber comprising channel 12 and wall 27, both extruded, encloses two pairs of shaft-supporting discs 19 and a drive belt. ,The discs are supported on rail 24. Covers 29, preferably of plastics material, are attached to wall 27 to form separated rotor chambers. Air is drawn inwards 'by the first discs, formed as axial-flow fans, between the covers and through filters 26 and openings 25. In a modification, Fig. 6, both discs 37 draw air from channel 35, and both discs 38 draw air from chamber 39. Compressed air, possibly filtered and conditioned, may 'be fed into the common channel leading to channel 12. Air may be evacuated from an end opening, or from spaced openings, in channel 12.
Patent GB-1358575-A (GB)
Title: Explosion-proof cathode-ray tube
IPC: H01J29/87
Filed: 1971-09-16
Abstract: 1358575 Cathode-ray tubes A Y KALJUKO F L SIMKHOVICH N F CHEREDNIK L D PRAVEDNAYA A M KAZAKOV A M SAPOZHKOV and A I LISCHINSKY 16 Sept 1971 [27 Oct 1970 19 Dec 1970] 43270/71 Heading H1D A cathode-ray tube is fitted with an antiexplosion device comprising a frame 2 embracing the envelope 3 with a gap therebetween containing filler 6 which expands on solidification, a flange 5 being in contact with the envelope around the perimeter of the screen and there being an outwardly projecting peripheral recess 4 formed in the frame. The recess can be angular or in the shape of a segment of a circle in cross-section and the angle made by the flange 5 with the axis of the tube may vary around the perimeter. The filler 6 can be alabaster.