baber/WOPTO huggingface dataset:
Patent GB-1098570-A (GB)
Title: Improved polymers
Inventor: MINOR HARRY BOORE
IPC: C08G81/02
Filed: 1966-12-19
Abstract: Block copolymers having the general formula A-B-A in which each A is an independently selected polymer block of a vinyl substituted aromatic hydrocarbon, and B is a polymer block of a conjugated diene wherein (a) each polymer block A has an average molecular weight in the range of 8000 to 35,000, (b) between 7.5 and 30 mol per cent of the polymer blocks A have an average molecular weight in the range of 3000 to 12,000, (c) the polymer block B has an average molecular weight in the range 40,000 to 150,000, and hydrogenated derivatives thereof are made by polymerizing the A-block monomer in the presence of a portion of the total amount of a lithium-based catalyst to give a fraction of the A-blocks having the desired average molecular weight, followed by addition of the remaining amount of Li-based catalyst, adding a conjugated diene and continuing the polymerization until the molecular weight of the copolymer is half of that of the final copolymer, coupling with an organic difunctional coupling agent and if desired, hydrogenating the product.  The conjugated dienes may be butadiene, isoprene, methyl isoprene or dimethylisoprene and the vinyl aromatic may be styrene.  The preferred catalyst is secondary butyl lithium.  The block copolymers may be mixed with 0.5 to 5% by weight of an alkaline earth metal higher fatty acid soap such as calcium stearate or oleate, or the corresponding magnesium soaps.
Patent GB-1168179-A (GB)
Title: Improvements in methods of and apparatus for making Helically-Seamed Tubes
Inventor: MALKKI EINO KALERVO
IPC: B23K9/032
Filed: 1967-12-18
Abstract: 1,168,179. Making helically seamed tubes; coiling; seaming. E. K. MALKKI, and V. SILDE. 18 Dec., 1967 [21 Dec., 1966], No. 57305/67. Headings B3A, B3E and B3J. An apparatus for making helically seamed tubes without internal support comprises feed rollers to feed a flanged strip 2 to at least three mutually spaced rolling devices 4, 5, 6 which progressively interengage the flanges to form the seam. The feed rollers may also form the flange on each edge of the strip. The devices 4, 5, 6 are equally spaced around the formed tube and are all driven at the same speed to feed the strip and tube axially. The devices are adjustable axially for different strip widths and radially for different tube sizes. The lower device 4 is preferably fixed and the devices 5, 6 each mounted on slides (10), Fig. 6 (not shown), which can each be moved on guide-rods (13) by a threaded shaft (11). The shafts (11) are interconnected by a common drive-shaft (12). The rollers of the devices are driven by chain and sprocket means. The relative positions of the devices can be altered during seaming to produce tapered or varying size tubes. The formed tube may be supported on rollers.
Patent GB-1426240-A (GB)
Title: Apparatus for lifting a pipeline
IPC: F16L1/16
Filed: 1973-12-11
Abstract: 1426240 Grippers SAIPEM SpA 11 Dec 1973 [20 Dec 1972] 57441/73 Heading B8H Grippers for engaging a pipe-line under-water comprise a body 3 with two pairs of arcuate supports 3<SP>1</SP>, 3<SP>11</SP> with a pair of jaws 5, 5<SP>1</SP>, 6, 6<SP>1</SP> pivotally mounted between each pair of supports. A two-stage hydraulic actuator 12 is connected between each pair of jaws and is connected through ducts and valves 20, 21 to oleo-pneumatic accumulators 8 whereby fluid may be initially supplied to a relatively small diameter piston 18 to move the jaws into engagement with the pipe-line and then fluid may be supplied to a relatively larger diameter piston 16 to effect a gripping force on the pipeline. A further accumulator 26 with fluid at a lower pressure than that in accumulators 8 is connected via ducts 24, 25 to the opposite side of the pistons to the accumulators 8, whereby to apply a constant force thereto in a direction to open the jaws. Return fluid from the actuator is collected in reservoirs 27 in the jaws 5, 6 for re-use.
Patent GB-1219106-A (GB)
Title: Photographic copying process
IPC: G03C5/08
Filed: 1967-12-19
Abstract: 1,219,106. Colour photography; optical filters. FUJI SHASHIN FILM K.K. Dec. 19, 1967 [Dec. 19, 1966], No. 57703/67. Headings G2C and G2J. A copy of a coloured original is made through a suitable filter on to light-sensitive material giving a monochrome copy, on which different areas corresponding to different colours of the original can be discriminated. The filter may be as shown, having diagonal stripes of elemental width, stripes 11 being gray, and the narrower stripes 12 having a maximum absorption at one part of the lightsensitive range of the copy material (e.g. green). The different elemental areas have the same effective absorption factor. The elemental areas may have different forms, as in Figs. 4, 6, and 7 (not shown) and filters may be combined with each other.
Patent GB-1260877-A (GB)
Title: A reader for punched tapes or cards
IPC: G06K13/30
Filed: 1969-11-28
Abstract: 1,260,877. Mogetic switches. SOC. D'APPLICATIONS GENERALES D'ELECTRICITE ET DE MECANIQUE DITE. 28 Nov., 1969 [29 Nov., 1968], No. 58422/69. Heading H1N. [Also in Division G4] A punched tape is sensed by feelers 19c at one end of levers 19 which are raised by an eccentric and links 11, 16-18, those levers 19 which sense holes pivoting about pins 19a so that a magnetic shield 43 is lowered over an associated reed contact set 41 subjected to a permanent magnetic field generated by a coil 42, and those levers 19 which do not sense holes being raised relative to pin 19a so that the associated magnetic shield 43 is raised and the contact set 41 is exposed to the field of coil 42. A set of levers 19 and reed contacts 41 may be provided for each of two adjacent rows of the tape.
Patent GB-1109540-A (GB)
Title: Production of epsilon-caprolactam
Inventor: HOSOYA TOORU
Filed: 1966-12-30
Abstract: Copper chromite, also referred to as copper chromium oxide, which may contain an optional third metal is prepared (a) by mixing aqueous solutions of ammonia, a cupric salt, a dichromate and optionally an additional metal salt and then thermally decomposing the resulting precipitate or (b) by reducing a mixture of the appropriate metal oxides with hydrogen. The molar ratio of copper to chromium in the compound is from 1 : 0.1 to 1 : 1.5 and of copper to the third metal is from 1 : 0.01 to 1 : 0.2. The compound may be shaped, e.g. into particles of 10 mesh size and is used as a catalyst in the conversion of e -caprolactone into e -caprolactam. A large number of optional metals is specified.ALSO:e -Caprolactam is prepared by reacting e -caprolactone with ammonia in the presence of hydrogen and a copper chromite catalyst, in the vapour phase.  The addition of water to the reaction mixture, within the range 0 to 200 moles per mole of e -caprolactone, increases the life of the catalyst and the selectivity of e -caprolactam formation.  Suitably the reaction is carried out at a temperature of 170 DEG  to 300 DEG  at a pressure of 0.5 to 3 atmospheres and with a partial pressure of hydrogen of 0.01 to 3 atmospheres.  The molar ratio of copper to chromium in the catalyst is from 1:0.1 to 1:1.5 and the catalyst can include as an additional metal: calcium, strontium, magnesium, barium, zinc, cadmium, aluminium, gallium, titanium, germanium, tin, lead, vanadium antimony, bismuth, molybdenum, manganese, rhenium, iron, cobalt, nickel, ruthenium, rhodium, palladium, osmium, iridium and platinum.ALSO:A catalyst for the conversion of e -caprolactone to e -caprolactam comprises copper chromite which may contain a third metal and may be used alone or on a carrier e.g. kieselguhr, silica gel, alumina or pumice.  The preparation and shaping of these catalysts are described.  The molar ratio of copper to chromium in the catalyst is from 1:0.1 to 1:1.5 and the third metal may be: calcium, strontium, magnesium, barium, zinc, cadmium, aluminium, gallium, titanium, germanium, tin, lead, vanadium, antimony, bismuth, molybdenum, manganese, rhenium, iron, cobalt, nickel, ruthenium, rhodium, palladium, osmium, iridium and platinum.
Patent GB-1375008-A (GB)
IPC: D01F4/00
Filed: 1971-12-16
Abstract: 1375008 Filaments of lactide/glycollide copolymers ETHICON Inc 16 Dec 1971 [18 Dec 1970 16 Nov 1971] 58564/71 Heading B5B [Also in Divisions C3 and D1] A packaged suture comprises a sterile absorbable surgical suture in an internally sterile package, the suture being a braided multifilament thread consisting of filaments made by extruding a copolymer obtained by copolymerizing glycollide and L(-)lactide and containing 10-15 mole per cent of lactide and having an inherent viscosity of at least 1À4, as determined on a 0À1 per cent solution in hexafluoroisopropanol at 25 C. The filaments are extruded, stretched, annealed, braided, optionally further stretched and annealed, and sterilized by exposure to a wet atmosphere of a fluorochloralkane and ethylene oxide. The filaments may be dyed by addition of a non- toxic dye to the polymer mixture. The copolymerization reaction between the L(-)lactide and glycollide is carried out in a dry container under a blanket of dry nitrogen and is catalysed using stannous octoate. Several examples of reaction conditions are given in the Specification. The copolymer melt is extruded using a screw feed hopper, a metering pump, and a die with the appropriate number of orifices. Several examples of extrusion conditions are given in the Specification. The suture material is cut to suitable length and sterilely packaged with a surgical needle.
Patent GB-1194350-A (GB)
Title: Process for the Polymerisation of Lactams to Polyamides
IPC: C08G69/20
Filed: 1967-12-27
Abstract: 1,194,350. 1,1<SP>1</SP> - Carbonyl - bis - (imidazoles). TORAY INDUSTRIES Inc. 27 Dec., 1967 [28 Dec., 1966], No. 58740/67. Heading C2C. [Also in Division C3] 1,1<SP>1</SP>-Carbonyl-bis-(imidazoles) of the formula where each R is H or hydrocarbyl, is used as co-catalysts in the anionic polymerization of lactams (see Division C3). The preparation of the compounds from phosgene and the appropriate imidazole is described. Exemplified compounds are those wherein R is H and/or C 1 , C 2 , C 4 , C 5  or C 11  alkyl or phenyl, while comparative examples describe similar compounds wherein R is nitro, cyano or benzo.
Patent GB-1203280-A (GB)
Title: Process for stereospecifically polymerizing isoprene
Inventor: DAWANS FRANCOIS
IPC: C08F136/08
Filed: 1967-12-29
Abstract: 1,203,280. Polymerizing isoprene. INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS. 29 Dec., 1967 [30 Dec., 1966], No. 59148/67. Heading C3P. Polyisoprenes consisting substantially of cis-1,4 units and 3,4 units in approximately equal amounts are made by contacting isoprene with a catalyst comprising (a) an inorganic salt of cobalt and (b) an aluminium compound of the formula AlR 1 R 2 OR 3 , where R 1  and R 3  are monovalent hydrocarbon radicals and R 2  is hydrogen, a monovalent hydrocarbon radical, or an OR 3  radical. Specified (a) compounds are cobalt chloride, bromide, fluoride, iodide, nitrate, sulphate, and silicofluoride, from which water of crystallization is preferably eliminated. The Specification contains a long list of (b) compounds of which (C 2 H 5 ) 2 AlOC 2 H 5  is exemplified. The catalyst is preferably preformed at a low temperature in a hydrocarbon solvent, and solubilized by incorporating a minor amount of monomer such as isoprene. The process may be carried out batchwise or continuously and if desired in bulk. Before recovering the polymer by known techniques an antioxidant such as para-tert. butyl cresol or beta-phenylnaphylamine may be added to the polymerizate.
Patent GB-1337040-A (GB)
Title: Methods and apparatus for making bar stock from metallic powders
IPC: B22F3/12
Filed: 1971-12-21
Abstract: 1337040 Making bar stock HOMOGENEOUS METALS Inc 21 Dec 1971 [28 Dec 1970] 59223/71 Heading B3A [Also in Division C7] A method of making bar stock from metallic powder comprises filling a hollow, elongated tube 10 with a metallic powder 11, the tube having a diameter greater than that of the final desired bar, sealing the ends of the tube with end caps (12), Fig. 1 (not shown), passing the tube through a cell 15 containing pressurized fluid to compress the tube and powder so that the powder has 100% of its theoretical density on leaving the cell, and sintering the powder under compression within the tube. A plurality of filled tubes, which may be of drawn steel, may be butt welded together at their ends 10a, under vacuum where superalloys and titanium alloys are involved, the welds 13 being de-flashed using a scarfing die 14 prior to pressing. The cell 15 may be an isostatic pressure cell in which the tube is compressed and the powder sintered by passing through an induction furnace coil 17 therein, or it may be a hydrostatic cell, the tube in this case being sintered on leaving the cell. A sizing die 18 is provided to render the tube of uniform diameter before entering outlet seal 19 of the isostatic cell and a pair of rolls 20 are provided to control the passage of the tube through the cell.
Patent GB-1286298-A (GB)
Title: Process and apparatus for measuring the concentration of a component of a liquid
IPC: H01M8/04186
Filed: 1969-12-04
Abstract: 1286298 Electro-chemical analysis SIEMENS A G 4 Dec 1969 [5 Dec 1968] 59372/69 Heading G1N [Also in Division H1] The concentration of e.g. hydrazine in an electrolyte is monitored by an electro-chemical cell with one electrode (e.g. a platinized nickel grid) behind a porous membrane (e.g. of asbestos fibre paper) and a bias of about 1 volt applied so that it operates in the diffusion limiting range. Modifications:-The membrane may be formed with coarse pores at the margins away from the electrode; an ion-exchanger resin membrane may be used; the cell may be formed as a ceramic "testtube", Fig.3 (not shown). Control. The cell may be used to control the hydrazine pump of a fuel-cell system in accordance with the deviation of hydrazine concentration from a reference valve derived from the cell load current in conventional manner, Fig.4 (not shown).
Patent GB-756525-A (GB)
Abstract: 756,525. Spirit levels. LAFOSSE, V. R. F. J. Oct. 5, 1954 [Oct. 10, 1953], No. 28691/54. Class 97 (2). The bubble-tube of a spirit level is freely surrounded by a glass or other transparent protective casing, which is resiliently supported in a recess in the stock, e.g. by the use of sponge rubber support members or of springs disposed around each end of the protective casing. The recess may be in communication with openings in opposite faces of the stock, the edges of such openings being inclined towards the recess, more or less in a direction perpendicular to the axis of the bubble-tube. As shown in Fig. 2, the wooden, aluminium or steel stock 2 has a recess 3 housing a bubble-tube 4 whose ends are fixed in plaster 37. The bubble-tube 4 is surrounded by a glass tube 7 resiliently supported in sponge-rubber blocks 8 which close the recess to prevent dust from entering the tube 7. The side faces of the stock are cut away to facilitate viewing of the bubbletube. As shown in Fig. 4, the bubble-tube 4 may be held by plaster in a cradle 27 and surrounded by a tube 7 supported by rubber rings 16. A plate connected to the cradle 27 is held in the stock 2 by screws surrounded by springs to permit adjustment, and is separated from the bottom of the housing formed in the stock by a rubber ring surrounding the cradle. The free end of the cradle is also provided with a protective rubber ring. The edges 18 and the edges 19 of the side openings 17 in the stock are inclined.
Patent GB-765748-A (GB)
IPC: A24F1/08
Abstract: 765,748. Tobacco pipes; cigar and cigarette holders. TODISCO, F. Aug. 29, 1955 [May 29, 1954], No. 15989/54. Class 130 A cap 6 may be screwed along a mouthpiece extension tube 1 variably to mask a port 7 therein.
Patent GB-2000151-A (GB)
Title: Polypeptides
IPC: C07K14/575
Filed: 1978-06-16
Abstract: Polypeptides having the general formula:  H-Tyr-X-Z-Y  in which: X represents a chiral residue of a D-amino acid selected from D-alanine, D-leucine, D-isoleucine, D-valine, D-phenylalanine, D-tyrosine, D-tryptophan, D-serine, D-histidine, D-proline, D-threonine, D-methionine, D-glutamic acid, D-glutamine, D-aspartic acid, D-asparagine, D-lysine, and D-arginine; Y represents a hydroxy, amino, lower alkylamino, dilower alkylamino in which the lower alkyl groups contain 1 to 6 carbon atoms or a lower alkoxy group containing 1 to 6 carbon atoms; Z represents a segment of a mammalian beta lipotropin chain, beginning at chiral fragment 63 and containing 1 to 29 chiral fragments with the proviso that Z is not  beta -lipotropin fragment 63 to 65; pharmaceutically acceptable salts thereof, their preparation and pharmaceutical compositions containing said polypeptides.
Patent GB-2002626-A (GB)
Title: Safety helmet visor
IPC: A42B3/22
Filed: 1978-08-01
Abstract: A pivotable visor for a safety helmet for use especially in industrial applications for head and facial environmental hazards such as splashing of molten metal and reactive chemicals, has a curved transparent face screen 3 of plastics material and a brow guard 4 of heat resistant and/or chemically inert material which is attached to the upper perimeter of the face screen and is shaped to extend hack over the upper front portion of the safety helmet when the visor 2 is attached thereto. A smooth transition is presented between the brow guard 4 and the screen 3. A neck cape may be provided. <IMAGE>
Patent GB-2027546-A (GB)
Title: Fibre optic tap
IPC: H04B10/213
Filed: 1978-08-08
Abstract: To provide a tap to an optic fibre light conductor, a graded-index rod a half-wavelength (or an odd number of half-wavelengths) long is used with an angled mirror surface half-way along its length. Two fibres meet opposite ends of the rod, and the output due to the mirror, which is of the partially- reflective type, provides the tapped output. The reflected output thus produced is aimed at a photo-diode or, via a lens, at another optical fibre. This gives a simple and economical tap, suitable especially for use in data transmission systems.
Patent GB-2004346-A (GB)
Title: A device for modifying angular speed or torque
IPC: F16H7/00
Filed: 1978-09-06
Abstract: A planetary speed reducer has concentric input and output shafts (1 and 2), each carrying a sun cogwheel (3,10). A third coaxial sun cogwheel (9), is fixed to a stationary frame (15). Each sun cogwheel (3,9,10) is connected to a planet cogwheel (5,7,8) by a cog belt (4a,4b,4c) to form a planetary set. The three planet cogwheels are fast on a common shaft (6) which rotates about its own axis and orbits about the axis of the output and input shafts. As the planets turn, they are drawn about their respective suns and the teeth on the planet cogwheels describe an epicyclic path. The speed reduction ratio may be very high dependent mainly on the difference in the relative sizes and number of teeth of the output sun wheel (10) and the fixed sun wheel (9). Chains and sprocket wheels can be used in place of cog belts and cogwheels. <IMAGE>
Patent GB-2005382-A (GB)
Title: Pump piston sealing structure
IPC: F16J1/00
Filed: 1978-09-27
Abstract: A pump comprises a hollow cylinder, a piston rod 14 extending into and adapted to reciprocate in said cylinder, a sealing ring 34 mounted on said piston rod and engaging the interior of said cylinder, a backing ring 36 of an ultra high molecular weight polyolefin and means for mounting the backing ring on the piston rod in supporting relation to the piston seal. <IMAGE>
Patent GB-2007434-A (GB)
Title: Mounting circuit breakers
IPC: H02B1/052
Filed: 1978-10-20
Abstract: A mounting rail 20 for a conventional isolator 36 and an array of conventional circuit breakers comprises a single flange 24 extending full operative length of the rail, and a second flange 26 which extends a distance sufficient only to accommodate the isolator, both flanges having a single out-turned lip 25, 27 for retaining the switches. Individual circuit breakers are mounted on the mounting rail 20 and connected to the bus-bar 32 and may be mounted on and removed therefrom, without disruption of the connections of the other circuit breakers or isolator with the bus- bar 32. <IMAGE>
Patent GB-2006421-A (GB)
Title: Solar Energy Collecting Panel
IPC: F24S10/75
Filed: 1978-10-20
Abstract: A solar energy collecting panel comprising a planar reflecting plate 2 and a finned absorption coil 3 mounted above the reflector in slightly spaced relationship thereto, the fins 31 of the coil being transverse to the plane of the reflector. The absorption coil is preferably covered by a glass plate 4 parallel to the reflecting plate. <IMAGE>
Patent GB-2013863-A (GB)
Title: Heat exchangers incorporating heat pipes
IPC: F28D15/06
Filed: 1979-01-25
Abstract: A heat exchanger comprising two spaces (1,2) disposed one above the other, the upper space and the lower space being intended respectively for the circulation of a cold fluid and a hot fluid. A series of tubes (3) extend partly into each of the two spaces but do not communicate with them, each of the tubes (3) containing a heat-bearing liquid and an inert gas, the amount of said liquid and said gas being such that at the desired operating temperature, on the one hand, there remains in the tube a certain amount of non-vaporized liquid and, on the other hand, the volume taken up by the inert gas is less than the volume of the tube contained in the upper space through which the cold fluid passes. In operation, the liquid which is found in the lower portion of a tube (3) vaporizes under the action of the hot fluid; the vapour formed in the upper part of the tube is cooled by the cold fluid, pushing inert gas back upwards. The vapour condenses, thus heating the cold fluid and falling down in liquid form, into the lower portion of the tube. <IMAGE>
Patent GB-2016099-A (GB)
Title: Floating caliper spot type disc brake
IPC: F16D55/00
Filed: 1979-03-01
Abstract: In order to reduce the axial length of the brake unit, the brake caliper (15) has two lugs (20, 21) arranged between the guide lugs (11, 12, 13, 14) of the brake shoes (9, 10). The lugs engage guide pins (5, 6) for the brake shoes (9, 10) radially from the outside, and are preferably constructed as half shells engaging one side of each pin. <IMAGE>
Patent GB-2046763-A (GB)
Title: Propylene polymer composition
IPC: C08L7/00
Filed: 1979-04-18
Abstract: Impact resistant propylene polymer compositions comprise   (A) 100 parts by weight of a crystalline propylene polymer containing 0 to 10 mole% of units derived from ethylene and/or another  alpha -olefin, (B) 1 to 30 parts by weight of a propylene/ethylene random copolymer containing 30 to 85 mole% of units derived from propylene, said copolymer containing 0 to 10 mole% of units derived from diene component and having (i) a micro- isotacticity of at least 0.8 and (ii) a boiling n-cyclohexane insolubles content of 0 to 10% by weight, and (C) 0 to 30 parts by weight of an ethylene polymer containing 0 to 15 mole% of units derived from an  alpha - olefin, said components (A) and (B) having been physically mixed with each other. r
Patent GB-2016674-A (GB)
Title: Liquid Fuel-Burning Radiant Heaters
IPC: F24C5/18
Filed: 1979-04-24
Abstract: A liquid fuel-burning radiant heater comprises a fuel reservoir 3 seated in inverted position above the inlet 11 of a fuel supply pipe 12 and fitted with a spring-loaded valve 18 which opens automatically when the reservoir is properly seated; the amount of fuel likely to be spilt in the event of the heater overturning is reduced by the provision of a cup (10) of less diameter than the mouth of the reservoir, which cup is fitted beneath the reservoir seat and is apertured at its lower end to receive the inlet end of the fuel supply pipe. <IMAGE>