baber/WOPTO huggingface dataset:
Patent GB-1105119-A (GB)
Title: Pencil receptive film
IPC: C08K3/34
Filed: 1966-09-02
Abstract: 1,105,119. Pencil receptive films. E.I. DU PONT DE NEMOURS & CO. 2 Sept., 1966 [3 Sept., 1965], No. 39377/66. Heading B5B. [Also in Division C3] A film suitable for graphic art applications comprises a dimensionally stable, biaxially oriented polyester film containing therein from 0.5 to 10% by weight, based on the weight of polyester of a particulate silica characterized in that the silica is naturally occurring, non- porous, crystalline silica having a minimum silicon dioxide content of 99.9% by weight, an average particle size within the range of 1 to 5 microns, and a surface area within the range of 0.5 to 2.2 square meters per gram. Film especially suitable for drafting and cartographic applications may contain 5 to 10% by weight of the silica which has an average particle size within the range of 2 to 3 microns and a surface area within the range of 0.8 to 1.2 square meters per gram. Apart from such films, preferred film in general comprises from 0.5 to 3% by weight of the particulate silica, and the polyester is preferably polyethylene terephthalate, although other polyesters, which are listed, may be used. The non-porous crystalline silica is incorporated into the polymer at any convenient stage prior to extrusion of the film, including incorporation of the silica as a constituent of the reaction mixture from which the polyester is preferred. Preferably, the silica particles are incorporated into the molten polyester in a conventional twin-screw extruder. After thorough intermixing of the silica particles and polyester the resulting mix is extruded into the form of a thin film, quenched and thereafter molecularly oriented by stretching the film in both the longitudinal and transverse directions, and heat-set. In examples, if a filled film containing 5% by weight of filler is desired, and a polymer throughput of 200 lbs. per hour is employed, 10 1bs. per hour of filler is added by the extruder. The polymer is cast into the form of a thin film, quenched, molecularly oriented by stretching, and heatset. The extruded film is stretched in a longitudinal direction to an extent of 2.6 times at an ambient (stretch roll) temperature of 94‹ to 96‹ C. and then in the transverse direction to an extent of 3À0 times at an ambient temperature of 98‹ to 103‹ C. The film is then heat-set at a temperature of 200‹ C.
Patent GB-1370296-A (GB)
Title: Nonwoven fibrous material pad and method of manufacture thereof
IPC: D06M17/00
Filed: 1971-11-09
Abstract: 1370296 Fibrous laminate PORTWAYS Ltd 9 Nov 1971 [15 Aug 1970] 39449/70 Heading B5N A non-woven fibrous material pad comprises at least two layers 11, 12 of a felt made of fibres secured together by means of an adhesive forming an adhesive interlayer(s) 17. between adjacent felt layers, the adhesive itself being coloured or including a pigment, the colour of the adhesive interlayer(s) differing from the colour or colours of the adjacent felt layers, whereby there is provided a visible indication of the thickness and continuity of the felt layers and the adhesive interlayer(s). The material may be made by forming two continuous felt layers of indefinite length, each felt layer comprising a plurality of fibres, coating at least one surface of one of the layers with an adhesive which is itself coloured or which includes a pigment, the colour of the adhesive differing from the colour or colours of the felt layers, superimposing the two layers of felt so that the adhesive forms an interlayer therebetween; and causing or permitting the adhesive to set and bond the felt layers together. The felts may be made from polyester, acrylic, modacrylic, triacetate or rayon fibres or a mixture thereof, e.g. a mixture of crimped polyester and crimped acrylic fibres. The adhesive, which may be applied by spraying may comprise a cross-linkable acrylic copolymer. The products of the invention may be used as padding or insulation in upholstery or clothing.
Patent GB-1430170-A (GB)
Title: Device for sealing heat-exchanger tubes
IPC: F42D3/00
Filed: 1973-08-22
Abstract: 1430170 Welding by pressure SIEMENS AG 22 Aug 1973 [25 Aug 1972] 39871/73 Addition to 1387293 Heading B3R [Also in Division F2] The explosive closure plug of Specification 1,387,293 is modified in that the primary explosive and the explosive charge are contamed in a thin metal casing, e.g. of aluminium. The explosives are also preferably composed only of materials which do not leave any corrosion promoting residues, e.g. diazodinitrophenol and tetryl.
Patent GB-1498880-A (GB)
Title: Hoist control with limit switches
IPC: B66D3/18
Filed: 1975-09-30
Abstract: 1498880 Air operated hoists; limit switches EATON CORP 30 Sept 1975 [8 Oct 1974] 39876/75 Heading B8B A hoist 10 driven by an air motor 12 has its load chain 26 controlled upwardly and downwardly by a manually operated pendant control 14, and air motor 12 being automatically switched off at upper and lower limits by mechanical actuation of respective normally open 3-way valves 72 and 74 which actuate a control valve assembly 88 controlling the air supply to the motor 12. Limit actuators 68, 70 for the valves 72, 74 are positioned at opposite ends of screwed rod of a limit switch assembly 30, the screw being driven in synchronism with the hoist drum to move limit nuts into engagement with the respective actuators 68, 70, the nuts being threaded on the rod and after setting being prevented from rotating whereupon they move longitudinally of the screwed rod upon rotation thereof. The control valve assembly 88 includes for controlling a hoist movement in one direction a piston 106 movable between a first position in which main air supplied from the pendant 14 and conduit 102 flows through an inlet chamber 98 and outlet conduit 90, 94 to drive the motor 12 while an exhaust vent 122 is sealed from the conduit 90, 94 and a second position in which the conduit 90, 94 communicates with the vent 122 to exhaust the motor 12, and the conduit 90, 94 is sealed from the inlet chamber 98. Whilst the 3-way valve 72 is in its normal open condition between hoist limits, pilot air from the conduit 102 passes through the valve 72 into a pilot biassing chamber 110 and through an enlarged piston 118 on the end of the piston 106 displaces the latter into its first position against a spring 114. At a limit position the valve 72 is closed to exhaust the pilot air and the spring 114 displaces the piston 106 into the second position to exhaust the motor 12. A second identical biased piston arrangement 108 is provided in the assembly 88 for controlling the hoist movement in the opposite direction.
Patent GB-1428100-A (GB)
Title: Telescopic umbrella frame
IPC: A45B9/02
Filed: 1974-09-12
Abstract: 1428100 Umbrellas BREMSHEY AG 12 Sept 1974 [15 Oct 1973] 39882/74 Heading A4P  To facilitate extension, the crown 6 of an umbrella having a telescopic stick is provided with a loop so that the crown can readily be pulled away from the handle. The crown and handle may each have a finger-ring H as shown and the crown may have a flexible loop. The umbrella may have a rib construction as disclosed in Specification 1383668.
Patent GB-971026-A (GB)
Title: Improvements in and relating to coatings for metal casting moulds
Inventor: ROYAL JOHN GREGORY
IPC: B22C3/00
Filed: 1961-11-08
Abstract: 971,026. Mould and core materials. UNION CARBIDE CORPORATION. Nov. 8, 1961, No. 39951/61. Heading B3F. Moulds are coated with a slurry, e.g. an aqueous slurry, of glass particles which is dried before casting. By glass is meant a fused inorganic material such as silica or a mixture of silicates, borates, or phosphates that is supercooled into an amorphous substance that is rigid at room temperatures and soft at high temperatures. Examples are commercial and industrial glasses, frits, glass bullets, and fused silica.
Patent GB-1470170-A (GB)
Title: Rectifier control circuit
IPC: H02M7/155
Filed: 1973-08-23
Abstract: 1470170 Transformers LODGE-COTTRELL Ltd 14 Aug 1974 [23 Aug 1973] 39956/73 Heading HIT [Also in Divisions H2 and H3] The primary and secondary windings of a transformer are constituted by outer and inner conductors 50, 51 of a coaxial cable. A plurality of primary/secondary combinations 60, 61 may be provided.
Patent GB-1449425-A (GB)
Title: Control units for central heating systems
IPC: F24H/
Filed: 1974-09-13
Abstract: 1449425 Central heating control units VADSTENA PUMPAR AB 13 Sept 1974 [8 Feb 1974] 40028/74 Heading F4U A control unit for a central heating system in the form of a single integrally produced body comprises an inlet 2 and return 5 to the boiler; an outlet 3 and return 4 to the radiators; a channel 6, 8 connecting the openings 2, 3 via a circulation pump 7; a channel 9, 11, 13 connecting the openings 4, 5 via a throttle valve 10 and a shunt valve 12; and a channel 14 connecting the channel 11 to the suction side of the pump 7 via a non-return valve (15, Fig. 4). Thermometers 16 and pressure gauge connections 17 are provided in the channels 6, 8, 9 and 13.
Patent GB-1199567-A (GB)
Title: Improvements in Knitting Machine Control Means.
Inventor: KLEE JOHN MICHAEL
IPC: D04B15/66
Filed: 1966-09-08
Abstract: 1,199,567. Knitting-machines. BENTLEY ENG. CO. Ltd. 8 Sept., 1967 [8 Sept., 1966], No. 40167/66. Heading D1C. A photo electrically scanned film controls a stepping motor which actuates switches controlling an electronic system which influences electro magnets controlling the actuation of pawl and ratchet mechanism adapted to be operated by continuously rotating cams so as to selectively actuate instrumentalities in the machine. The needle cams and yarn guides can be controlled in this manner.
Patent GB-1163737-A (GB)
Title: Improvements in or relating to 7-Dihalomethyl Steroids
IPC: C07J71/00
Filed: 1966-09-08
Abstract: 1,163,737. 7-Dihalomethyl steroids. SYNTEX CORP. 8 Sept., 1966 [9 Sept., 1965; 13 Dec., 1965], No. 40197/66. Heading C2U. 7 - Dihalomethyl - #<SP>4</SP> - 3 keto steroids, of which compounds of the formula (wherein R<SP>1</SP> is H or acyl; R<SP>2</SP> is H, alkyl, alkenyl, alkynyl or haloalkynyl; and R<SP>3</SP> is H or methyl) are claimed as novel, are prepared by reacting the corresponding #<SP>4</SP>-3-keto-6,7-dihalomethylene steroids (prepared by the methods described in Specification 1,163,736) with zinc or a zinc amalgam in an inert solvent. Products containing a 17-keto group may, after 3-keto protection, e.g. enol ether formation, be transformed into 17#-ols or their acylates, which may contain a 17α-hydrocarbon or -halohydrocarbon group, by standard procedures.
Patent GB-898834-A (GB)
Title: Method of manufacturing cis-1,4 polybutadiene
IPC: C08F136/06
Filed: 1960-11-24
Abstract: Polybutadiene of high cis-1,4-configuration is made by polymerizing butadiene in the liquid phase, in the presence of a catalyst consisting of (1) a metal having a large surface area for its weight, i.e. in the form of colloidal particles, a fine powder, or a porous solid, and which is selected from the metals of Group VIIa and VIII of the Periodic Table, (2) a compound selected from the halides of the metals of Group III, IVa, Va, the oxyhalides of metals of Group IVa, and Va, and the halides of the metals of Group IVa in which at least one but not all of the halogen atoms are substituted by alkoxy groups, and (3) a compound selected from organometallic compounds of Group I, II, III, or IV, of the Periodic Table, and hydrides of the metals of Group I, II, or III.  The (1) component of the catalyst may be supported or unsupported nickel, iron, cobalt, manganese, platinum or mixtures, or Raney nickel, iron or cobalt.  The (1) component may be pyrophoric.  Suitable supports are diatomaceous earth, silica-alumina, silica, titania, zirconia, active clay, or kaolin. Component (2) of the catalyst is preferably selected from boron and aluminium halides and complexes, and titanium and vanadium halides. The component (3) may be butyl lithium, amyl sodium, amyl potassium, diethyl cadmium, diethyl zinc, diethyl magnesium, triethyl-, triisobutyl-aluminium, triethyl boron, lithium aluminium tetrabutyl, tetrabutyl tin, ethyl or phenyl magnesium bromide, diethylaluminium chloride, ethyl aluminium dichloride, diethyl boron chloride, tributyl tin chloride, or a hydride of sodium, lithium, calcium, diethylaluminium, lithiumaluminium, or boron.  The polymerization may be effected in bulk, or in the presence of a solvent such as benzene, toluene, xylene, cyclohexane, heptane, pentane petroleum ether, carbon tetrachloride, chlorobenzene, and mixtures.  Specification 846,731 is referred to.
Patent GB-880701-A (GB)
Title: Electric couplings
IPC: H01R13/648
Filed: 1957-12-31
Abstract: 880,701. Two-part couplings. ETABLISSEMENTS DAREY, BICKFORD, SMITH & CIE SOC. ANON. FRANCHISE. Dec. 31, 1957 [Jan. 4, 1957], No. 40476/57. Class 38 (1). A two-part connector for coupling electric cables consists of insulating coupling members moulded on to the ends of the cables with the ends of the conductors bared and bent back in a U-shape, the coupling members engaging one with the other or fitting into a common sleeve to hold the conductor ends in contact. In the embodiment shown in Fig. 3, one member A, moulded on to one conductor fits tightly into a corresponding aperture in the member B, moulded on to the other conductor. To hold the members A, B together faces 10 on member A are slightly domed, faces 11 on B being shaped to fit. In each co-operating member of the arrangement in Figs. 4 and 5, the bare ends of conductors 4, 4<SP>1</SP> are bent to fit into grooves 7, 7<SP>1</SP> in the meeting faces of the members, to make electrical contact when the members are fitted into each other. In another embodiment (Fig. 7) the two moulded coupling members are identical except that the member D shown has a label, the bare conductors 4 being bent to lie along a ledge 15 which is slightly less deep than the thickness of the conductor. In another type of arrangement the coupling members consist of a cylindrical member E and a tubular member F which fit one into the other (Figs. 10 and 11) or have half cylindrical portions I, I<SP>1</SP> (Fig. 18) which fit face to face and are enclosed by a tube. In each of these embodiments the bare conductor ends are folded back to lie in grooves and moisture excluding flanges 18, 26, 26<SP>1</SP> as well as co-operating projections and hollows 19, 20 are provided. In the Fig. 18 embodiment the cylindrical ends of the coupling members adjacent flanges 26, 26<SP>1</SP> are slightly conical and while the best contact is made with coupling of this type by forcing them fully home in tube J adequate contact to short circuit, e.g. a detonator connected to leads 3, 3<SP>1</SP> can be made without pushing the coupling members fully into the tube.
Patent GB-953089-A (GB)
Title: Injection-type internal combustion engine
IPC: F02B3/00
Filed: 1960-11-24
Abstract: 953,089. Fuel injection internal-combustion engines. KLOCKNER-HUMBOLDT-DEUTZ A.G. Nov. 24, 1960 [Nov. 27, 1959], No. 40479/60. Heading F1B. A fuel injection nozzle 10 which applies the fuel as one or more thin films 14 on the wall of a turbulence chamber is arranged in the part of the chamber cut off by the extension 20 of the wall 19 of the connecting passage 16. An igniter 11 is arranged immediately behind the nozzle 10 and the fuel may be sprayed as a single jet or as two or more jets, Fig. 3, arranged on opposite sides of the igniter 23. The engine may be charged by an exhaust driven turbine and the compression ratio may be low so that compression ignition only occurs at high loads, the igniter 11, which may be a spark plug, incandescent wire, or catalyst, being in operation continuously at low loads to provide ignition.
Patent GB-1150387-A (GB)
Title: Nuclear Reactors
Inventor: PUGH DERRICK OWEN
IPC: G21C13/10
Filed: 1966-09-09
Abstract: 1,150,387. Reactors. ENGLISH ELECTRIC CO. Ltd. 8 Sept., 1967 [9 Sept., 1966], No. 40493/66. Heading G6C. A reactor core 16, together with its associated coolant circuit 17 to 22, is housed within a concrete containment structure 10 in a primary vault 11 which is in communication with a secondary (or suppression) vault 12 situated below it, through a number of tubes 13 which extend below the surface 14 of a mass of water constituting a suppression pond 15 in the vault 12. The reactor is steam-generating and the coolant circuit contains a substantial quantity of heated water and steam, the release of which into the primary vault 11 under accident conditions would cause the pressure in the latter to rise sharply. In addition, the loss of coolant would cause a substantial rise in the temperature of the fuel and consequently also of the atmosphere in the primary vault, also producing an increase in pressure. This second pressure increase may occur as long as ten minutes after the accident, and the existence of relatively high pressures in the vaults for such a comparatively long time introduces a serious danger of volatile radio-active materials escaping through the concrete containment structure 10. In one method for relieving the pressure in vault 11 after an accident, the space within vault 12 above the pond surface 14 contains nitric oxide which combines with oxygen in the air from vault 11 which passes through the tubes 13 and then bubbles through the pond 15, forming nitrogen dioxide which is hydrolysed by the water in the pond to give a solution of nitrous and nitric acids. In a second method, the pond 15 comprises a weak solution of a hydroxide, preferably one (e.g. NaOH or KOH) capable of reacting with CO 2  to give a water-soluble carbonate. The primary vault 11 or the space within vault 12, or both, contain CO 2  gas which is kept out of contact with the pond 15 by floating a film of oil on the surface 14 of the pond. If the vault 11 contains CO 2 , when an accident occurs this will bubble into the pond 15 and react with the hydroxide, whereas if the vault 12 contains CO 2 , the disturbance caused by the bubbling of CO 2  or air from the vault 11 will disrupt the oil film so bringing the CO 2  above the surface 14 into contact with the water of the pond. In a third method, either the primary vault 11 or the space within vault 12, or both, are filled with a gas (e.g. NH 3 ) soluble in water. Again a suitable oil film is used on the pond surface 14, the pond 15 comprising water only. In all three methods, the pond 15 serves to condense the steam escaping from the coolant circuit.
Patent GB-1065982-A (GB)
Title: Improvements in or relating to polyacetylmethylenediamines
Inventor: JOHN JOHN ALEC
IPC: C07C233/90
Filed: 1962-10-26
Abstract: Substantially pure N,N,N1,N1-tetraacetylmethylenediamine is obtained by recrystallization of the crude compound from t-butanol or from a solvent mixture comprising at least 75% by weight of t-butanol and an organic compound which is stable to acetylation. Suitable additional solvents are diethyl ketone, acetone, ethyl acetate and, preferably, methyl ethyl ketone.  A colour-improving agent, e.g. charcoal, may be added to the recrystallization solvent.  In an example a mixture of 90% t-butanol and 10% methyl ethyl ketone is used as the solvent.
Patent GB-1324305-A (GB)
Title: Vinyl esters polymers containing hindered phenolic groups
IPC: C08F18/04
Filed: 1971-08-31
Abstract: 1324305 Vinyl esters containing hindered phenol groups CIBA-GEIGY AG 31 Aug 1971 [31 Aug 1970] 40588/71 Heading C2C [Also in Division C3]  The invention comprises compounds of the general formula wherein R is a hydrogen atom or a methyl group, A is -C n H 2n - group wherein n is 0 or an integer from 1 to 6 and which may be straight or branched or a -C m H 2m O- group wherein m is an integer from 1 to 6 and the (lower) alkyl groups contain from 1 to 6 carbon atoms. They may be prepared by reacting a compound of the formula (a) with acetylene or (b) with vinyl acetate or isoprepenyl acetate. The compounds of the invention may be used to prepare polymers or copolymers which may be used as stabilizers against oxidative or thermal degradation.
Patent GB-1328841-A (GB)
Title: Skin stapler
Inventor: GREEN D T
IPC: A61B17/068
Filed: 1970-08-25
Abstract: 1328841 Stapling instrument UNITED STATES SURGICAL CORP 25 Aug 1970 [25 Aug 1969] 40871/70 Heading B4C [Also in Division A5] A stapling instrument comprises a cartridge projecting from a body portion, the cartridge having an anvil at an end remote from the said portion and carrying staples in a guide track with the legs of the staples projecting towards the anvil and their cross-members transverse to the length of the cartridge, means for advancing the staples along the length of the cartridge and for positioning each staple in turn in an ejection position adjacent to and on one side of the anvil, means for ejecting a staple into an insertion position and bending the staple to bring the tips of the legs of the staple into close proximity on the opposite side of the anvil and operating means for actuating the ejecting and advancing means. A cartridge 12 containing staples 50 is mounted in the forwardmost region 18 of the instrument. The staples 50 are advanced in the cartridge by threads 52 of screw conveyers 46, the staples 50 resting in a track formed by ledges 49 and walls 51 of a body 36 of the cartridge 12. Above the staples 50 lies a pusher-plate 54 which has a pair of tines (72) Fig. 12 (not shown) which co-operates with an anvil (62) Fig. 11 (not shown) to insert the ejected staple. The pusher plate 54 is reciprocatingly driven by a gas powered unit, Fig. 23 (not shown), which is described in co-pending Application 18260/73, Specification 1,328,842 via a pusher engaging extension 30 on an output shaft 116 having an inclined surface 32. The forwardmost staple is guided into the plane of the pusher element 54 by an inclined surface (74) of the ledges 49 and by the depth of the thread 52 decreasing to zero; this movement of the staple occurs during the forward thrust of the pusher-plate 54. Alongside the anvil (62) are springs (64) to disengage the inserted staple from the anvil (62) when the pusher-plate 54 is withdrawn. The inclined surface 32 of the output shaft 116 engages a slidable plunger 34 biased upwards by a spring 35 and the plunger has a notch which engages a flange 154 on a carrierplate 156. The carrier-plate 156 causes a main gear 176 to move. The main gear 176 drives pinion gears 180 connected to the screw-conveyers 46, the gear ratio being such that the pinion gears 180 turn through one complete revolution for each stroke of the plunger 34. The cartridge has apertures 82 through which indicating elements 88, which are moved in channels 80 by the screw-conveyers 46, may be screwed to ascertain the number of staples left in the instrument.
Patent GB-1207373-A (GB)
Title: Improvements in or relating to apparatus for heating or cooling air or other gas
Inventor: HEATH DUNCAN FREDERICK
IPC: F24F5/00
Filed: 1967-09-07
Abstract: 1,207,373. Unit air heaters or coolers; gas heating or cooling apparatus. IDEAL STANDARD Ltd. 27 Sept., 1968 [7 Sept., 1967], No. 41027/67. Headings F4S and F4V. A unit heater or cooler for air or other gas comprises a centrifugal cross-flow or axial flow fan having a heat exchanger 5 arranged concentrically within the fan rotor. The heat exchanger 5 consists of a finned tube, as shown, or an inner duct having an outer finned return duct, and may be heated by water or by gas or oil burners. The bearings for the fan rotor may be formed or carried by the heat exchanger 5. The casing of the fan may form a heat exchange surface. The unit may supply air to the plenum chamber of a central heating installation.