baber/WOPTO huggingface dataset:
Patent GB-929138-A (GB)
Title: Process for the production of copolymers
IPC: C08F10/00
Filed: 1961-09-18
Abstract: A process for the production of copolymers comprises copolymerizing ethylene and at least one vinyl ester of a carboxylic acid in a liquid phase comprising tertiary butanol and 5 to 45% by volume, based on the total volume of solvent, of either (a) at least one aliphatic hydrocarbon having 4 to 10 carbon atoms and not more than one <FORM:0929138/IV(a)/1> and/or -CH2- group, or (b) at least one ester of a monovalent saturated aliphatic alcohol and a saturated aliphatic p  monocarboxylic acid in which either or both the acid and alcohol have not more than one <FORM:0929138/IV(a)/2> and/or -CH2- group, the bonds of said groups being linked to other carbon atoms to form saturated carbon to carbon bonds or, in the case of the esters, optionally to an oxygen atom. Preferred vinyl esters are vinyl acetate and vinyl propionate. Specified hydrocarbons and esters are isobutane, isooctane, tetramethyl methane, hexamethyl ethane, 2,2,4,4-tetramethyl pentane, neohexane, 2,2,3-trimethyl butane, t.butyl trimethylacetate, t.-butyl isovalerate and isononyl trimethylacetate.  Polymerization may be effected in the presence of initiators, e.g. acetyl peroxide, benzoyl peroxide, lauroyl peroxide, dichlorobenzoyl peroxide, diisopropyl peroxydicarbonate, di-t.-butyl peroxydicarbonate and azodiisobutyronitrile.  Examples describe the copolymerization of ethylene with vinyl acetate in tertiary butanol in the presence of (1) isooctane and azodiisobutyronitrile, (2) tetramethyl methane and diisopropyl peroxydicarbonate, (3) t.-butyl trimethylacetate and lauroyl peroxide, and (4) isooctane and azodiisobutyronitrile.  The copolymers may be subjected to peroxidic cross-linking, and may be made into shaped articles, e.g. foils.  The foils may be stretched to form shrinkage foils for the packaging of foodstuffs such as cheese, poultry and meal.  Specification 843,974 is referred to.
Patent GB-1522161-A (GB)
Title: Reproducing machines
IPC: G06F3/00
Filed: 1975-08-11
Abstract: 1522161 Computer controlled reproducing machines XEROX CORP 11 Aug 1975 [12 Aug 1974 (5)] 33369/75 Heading B6 [Also in Division G3] A digital computer 200 controls an electrostatic copier 5 e.g. a machine which produces images on either or both sides of copy material. Machine 5 has duplicate processors 7, 7<SP>1</SP> and the original document being reproduced is formed as a transparent film strip (Fig. 4, not shown) with book &c. page images arranged in series thereon, the strip coming from a cassette. The strip is indexed across a transplaten (14, Fig. 3, not shown), which can accommodate two frames at once, and is flash exposed to project optical light images via optics to photoconductive belts 20, 20<SP>1</SP> charged by corona generators 22, 22<SP>1</SP> before imaging at exposure stations 23, 23<SP>1</SP> and development at stations 24, 24<SP>1</SP>. The developed image is transferred to one or other side of web 28 at transfer station 25, 25<SP>1</SP> and residual developer removed at cleaning station 29, 29<SP>1</SP>. The film strip can be previously prepared off line using a camera which photographs the pages of the original documents on to the strips and a web cutting station is also provided (Fig. 7, not shown) using a guillotine knife. The computer 200 comprises an operator console 500 (Fig. 1B, not shown) and an interface 203 through which commands are passed to the machine. The operator can indicate image impression length and the appropriate space (i.e. the pitch) and the computer calculates the time intervals between the specific events in the process, which intervals are stored in memory 205. The process is controlled using counter 209 and the computer receives various sensor outputs to confirm that the various process steps have been effected. The console 500 can specify run sizes, lengths &c. and has error detection and control display. The computer is a standard mini-computer and its program is described at some length (Figs. 15-28, not shown). As the computer is relatively fast, the input can be scanned several times and a composite result obtained. This is stated to reduce the effects of electrical noise, switch debounce and rollover problems.
Patent GB-477763-A (GB)
Title: Improvements in or relating to processes for the manufacture of heat and sound insulating materials
IPC: C04B38/02
Filed: 1936-04-03
Abstract: In the manufacture of heat, cold, sound, and moisture insulating, felt-like bodies by wetting-out a basis of fibrous material and, with or without binders, moulding without any pressing of the loose mass, volume-increasing substances adapted to cause distension and swelling of the mass are added, at least in such quantities that any contraction caused by the binder, if present, is counteracted.  The fibrous material may be mineral or slag wool, asbestos, cellulose, wood fibre or wool waste.  The volume increasing substances may be resin soaps, cellulose lyes, glues, insoluble soaps, waterglass, alumina, or other gel-forming means or they may be gas-developing substances such as hydrogen peroxide, metallic powders, alkali carbonates, calcium carbide or dicyandiamide.  The binders may be Portland or other cement, a mixture of lime and substances containing silicic acid, gypsum, waterglass, emulsions of bitumen, resin soaps, resins, cellulose lyes or glues.  The fibrous material may be wetted-out in a mixing device, the volume increasing substances added and the mixture worked into a loose felt-like mass with the formation of air bubbles.  The mass is shaped by hand or by casting in moulds having porous walls or on sieves or filters.  The volume increasing substances may be added to the fibrous mass in a filter and pulled in by a suction action.  With cement, calcium chloride, or with glues, formalin may be added.  Setting may be accelerated by hot air, steam or carbonic acid.  The material may be formed in layers, as by varying the suction action of the filter.  Outer layers of solid or waterproof material such as concrete, gypsum, resins, artificial resins or bitumen emulsions may be added. Specification 379,119, [Group VIII], is referred to. the rollers 95, 96 collects in a receptacle 115.  The pasted grids may be dipped in sulphuric acid or other liquid by means of the apparatus described in Specification 473,118.
Patent GB-213946-A (GB)
Title: An improved method of treating oils
IPC: C10G32/02
Filed: 1923-09-07
Abstract: Mineral oils and mineral oil-forming substances are desulphurized by subjecting them to the action of an electric current while in intimate contact with an aqueous solution of a suitable metal salt and in presence of a catalyst such as coke, or palladium or nickel precipitated in the pores of coke.  The gravity of the oils is reduced, and if the treatment be prolonged and hydrogen be blown through very light oils or gas are produced. In an example, powdered oil-shale is mixed with brine, or a mineral oil is floated on or emulsified with brine, and a current of 2.5 amp<\>geres at 24 volts is passed through between lead electrodes.  Lead sulphides are formed on the positive electrode and settle to the bottom.  An alternating current of several thousand volts may be used.
Patent GB-1193228-A (GB)
Title: Integrated Electro-Optical Structures
Inventor: LEHOVEC KURT
IPC: H01L31/00
Filed: 1968-07-15
Abstract: 1,193,228. Light modulators. K. LEHOVEC. 15 July, 1968 [13 July, 1967], No. 33680/68. Heading H4F. [Also in Divisions C4 and H1] A light modulator in the form of a diffractive Fresnel optical system is formed integral with a photosensitive element (Fig. 9). The latter is formed within a lead selenide film 118 or is the junction between an epitaxial gallium arsenide film 118 and the 10 ohm. cm. arsenic doped germanium body 100. A series of opaque zones 109-115 formed of vapour deposited cadmiumindium alloy alloyed to the germanium to form rectifying contacts constitute the Fresnel system. Radiation passing through this zone plate is modulated by the Franz-Keldysh effect if the zones are reverse biased with respect to a circumferential electrode of gold antimony or are alternately forward and reverse biased.
Patent GB-960785-A (GB)
Title: Storage and recovery installation with combined setting-down and picking-up device
IPC: B65G65/28
Filed: 1962-09-03
Abstract: 960,785. Endless conveyers. BETEILIGUNGS-UND PATENTVERWALTUNGSGESELLSCHAFT G.m.b.H. Sept. 3, 1962 [July 11, 1962], No. 33718/62. Heading B8A. A device for setting down or picking up material in a storage yard comprises an endless belt 1 running over a belt loop carrier 11 which may be raised or lowered about a joint 10 by a lifting tackle 12: a drum 8 of a jib belt 9 being displaced to allow this operation. With the belt 1 travelling in the direction of the dotted arrows, the loop carrier 11 in the raised (dotted) position and the jib belt 9 in the extended (dotted) position material is fed to storage past a bucket wheel 14. In the full line position, with the belts 1 and 9 reversed, material is picked up by the bucket wheel 14 and is taken away by the belt 1. A C-shaped superstructure 5 carries the jib belt 9 on a base 3 and is pivoted about a vertical axis 6 so that by raising and lowering the jib 4, swivelling the superstructure 5 and moving the base 3 all points of the storage yard may be reached.
Patent GB-738959-A (GB)
Title: Textile spindle support
IPC: D01H7/04
Filed: 1953-12-04
Abstract: 738,959. Bearings. CELANESE CORPORATION OF AMERICA. Dec. 4, 1953 [Dec. 6, 1952], No. 33776/53. Class 12 (1). A textile spindle support comprises a spindle bolster 6 formed with an enlargement 9 having a spherical surface 29 which is separated from a corresponding surface 32 on a supporting casing 12 by an annular liner 33 preferably made of soft rubber. The bolster carries a roller bearing 11 at its upper end and a footstep bearing 7 at its lower end, and it is urged downwardly into the casing by a spring 16. The bolster 6 and casing 12 are filled with lubricant.
Patent GB-937621-A (GB)
Title: Improvements in colour photography and in colour-forming phenylazo-pyrazolones therefor
IPC: C07D231/52
Filed: 1959-10-06
Abstract: 1-(21,41,61- Trichlorophenyl) - 3-{411-[a -(2111, 4111- di-tamylphenoxy)butyramido]anilino}- 5-pyrazolone is made by treating the corresponding 3-(411-aminoanilino)- 5-pyrazolone with acetonitrile and a -(2,4-di-t-amylphenoxy)-butyryl chloride.  The 3-(411-aminoanilino)-5-pyrazolone is made by hydrogenating the corresponding nitro compound obtained on treating with caustic soda the compound formed by condensing the corresponding 3-amino-5-pyrazolone with acetonitrile and a -(p-nitrophenoxy) acetyl chloride.  The 1-(21, 41,61-trichlorophenyl)- 3-amino- 5-pyrazolone is made by treating 2,4,6-trichlorophenylhydrazine with ethyl-b -ethoxy-b -iminopropionate in the presence of sodium ethoxide and acidifying the product with acetic acid.  The corresponding 1-(phenyl) compounds may be made by similar methods. The final products are intermediates in the formation of colour couplers (see Groups IV(c) and XX).  Specifications 598,174, 599,377, 617,247, 635,841, 702,255 and 711,488 are referred to.ALSO:The invention comprises colour couplers of formula <FORM:0937621/IV(a)/1> where R is a phenyl radical which may contain halogen atoms in the 2, 4 and 6 positions, R1 is H or an alkyl group of 1 to 4 C atoms, R11 is an alkyl or alkoxy group of 1 to 12 C atoms and X and Z are alkyl groups of 1 to 20 C atoms.  Compounds in which either X or Z may be H are also described.  The couplers are made by conventional processes of diazotization and coupling.  R is specified as a phenyl or 2,4,6-tri-chloro-, -bromo-, -iodo- or -fluorophenyl radical.  X and Z preferably have 1 to 15 C atoms and R11 preferably has 1 to 6 C atoms.  The dyes are used in colour photography.  They are yellow and form a magenta dye on development with a primary aromatic amine developer.  Dyes prepared are 1-(21,41,61-trichlorophenyl) -3-(411-[a (2111,4111-di-t-amylphenoxy) -butyramido]anilino)-4-(4111-methoxy-, -ethoxy, -butoxy-, -dodecoxy- and sec-amyl and 21111-ethoxy-phenyl) azo-5-pyrazolones and 1-phenyl-3-(411-[a (2111,4111-di-t-amylphenoxy) butyramido]anilino)-4-(41111-methoxyphenyl) azo-5-pyrazolone. Specifications 598,174, 599,377, 617,247, 635,841, 702,255 and 711,488 are referred to.
Patent GB-435661-A (GB)
Title: Improvements in or relating to rail vehicle or locomotive internal-combustion engine, arrangements supercharged by exhaust energy
IPC: B61C9/24
Filed: 1934-11-26
Abstract: 435,661. Locomotives ; railway motor vehicles. BUCHI, A., 20, Salstrasse, Winterthur, Switzerland. Nov. 26, 1934, No. 33922. Convention date, Nov. 29, 1933. [Classes 79 (i) and 79 (iii)] An internal-combustion-engine locomotive or rail vehicle having a supercharger driven by the exhaust gases has the locomotive or vehicle body strengthened locally so as to provide a support for the supercharger. In the construction shown exhaust gases pass from the Diesel engine 1 through pipes 9 to a turbine 5 driving a blower 6 which delivers air through a pipe 12 to the engine. The turbine and blower are mounted in a casing 6 secured to the vehicle body 7 which is strengthened by stays. In the case shown in which the engine 1 drives a dynamo 2 the blower is situated with its air intake 13 directly above the dynamo, so that the latter is cooled by the blower. Flexible connections or joints 10 are provided in the pipes 9, 12. The blower may have a horizontal shaft and may be located at the top of one side of the body, leaving a clear gangway at the side below the blower. The exhaust gases pass to the atmosphere through a silencer 11 forming part of the roof.
Patent GB-931754-A (GB)
Title: Improvements in or relating to baths
IPC: A47K13/02
Filed: 1960-10-04
Abstract: 931,754. Baths. A. CLAVARINO, and FONDERIE A. NECCHI E. A. CAMPIGLIO. Oct. 4, 1960 [Dec. 23, 1959], No. 34001/60. Class 26. A bath has a mounting plate 1 which in plan is or substantially is in the shape of an elongated hexagon inscribable in a square and has its central longitudinal axis cited along a diagonal of the square. One of the bath ends may be rounded off to form a back rest. A cover member 4, extending out from a long wall 5 of the body 3, is bounded by the extensions 6, 7 of the walls 8, 9. The bath also has two short walls 10, 11 and a long wall 12. Profile members 17 form supports whereby the bath may be built in with enclosed walls.
Patent GB-383446-A (GB)
Title: Improvements in or relating to gas supply governors
IPC: G05D16/06
Filed: 1931-12-09
Abstract: 383,446. Combined pressure-regulating and safety cut-off valves. DAY, A., 276, Westbourne Avenue West, Hull. Dec. 9, 1931, No. 34152. [Class 135.] A combined gas governor and safety cut-off valve actuated by a diaphragm or liquid sealed bell has the cut-off valve so arranged that it is held closed by the pressure of the gas when the gas supply is resumed. The pressure regulating valve 7 is directly connected to the actuating member 5 and the cut-off valve member 14 is connected through a bell-crank lever 12. The lever 12 is pivoted to a bracket 13 which forms a guide for the valve 14 and engages at its ends with grooved collars 10, 15 on the valve spindles. The collar 10 is adjustably secured to the spindle 6 and may be adjusted, after removing a plug 19, by inserting a tool in a saw-cut in the end of the collar. The valve is reopened by manipulating a knob 17 after removing a cover 18.
Patent GB-632922-A (GB)
Title: Improvements in plasticizing substances for resins
IPC: C08K5/03
Filed: 1945-12-17
Abstract: Polyvinyl chloride is plasticized by a compound having the formula <FORM:0632922/IV (a)/1> there being at least three nuclei, X, X1 and X11 being halogens and R, R1 and R11 being alkyl radicals or hydrogen, and n being an integer.  Trichloro - p - phenyl - ethyl - diphenylethane is specified.  Other plasticizers such as tricresyl phosphate and p : p1 - dichlorodiphenylethane may be added.
Patent GB-1029206-A (GB)
Title: Low alloy bearing steel
Inventor: AKSOY ALAETTIN MUSTAFA
IPC: C22C38/12
Filed: 1963-08-29
Abstract: A low alloy steel, suitable for use as a bearing material, comprises:-  .C.0.75-0.92% .Si.0.6-0.9% .Mo.0.5-1.1% .Mn.less than 1% .Cr.up to 2%  the balance, apart from impurities, being iron. The steel may be hot worked in the range 2000-2150 DEG F., heated at 1450 DEG -1600 DEG F., quenched in oil or water and then tempered at 400-600 DEG F.
Patent GB-460332-A (GB)
Title: Improvements in air screw propellers
IPC: B64C11/34
Filed: 1935-12-10
Abstract: 460,332. Screw propellers. SOC. ANON. ALFA ROMEO. Dec. 10, 1935, No. 34209. Convention date, Jan. 21. [Class 114] A variable - pitch screw propeller in which the boss b is mounted freely on the shaft a, takes its drive from a sleeve on the shaft through levers g, which are secured to a sleeve at the base of each blade root. This sleeve is provided with weights d which are arranged so that their centrifugal force sets up a balance with the forces acting upon the blades which adjust themselves to different pitch angles under equilibrium of those natural forces.
Patent GB-1196519-A (GB)
Title: Improvements in or relating to Adjustable Capacitors
Inventor: FARNSWORTH JOHN
IPC: H01G4/255
Filed: 1968-07-18
Abstract: 1,196,519. Capacitors. GENERAL ELECTRIC & ENGLISH ELECTRIC COMPANIES Ltd. 10 June, 1969 [18 July, 1968], No. 34254/68. Heading H1M. A wound capacitor is adjustable to a desired value, the overall capacitance of the capacitor being relatively sensitive to pressure applied to one part of the axial length of the roll due to the presence of voids between the layers in that part and being relatively insensitive to pressure applied to the remainder of the roll. As shown, the capacitor core comprises a resilient part 1 comprising silicone rubber impregnated polyethylene terephthalate tape wound on a mandrel and a relatively non- resilient part 2 comprising wound plastics film. Aluminium foils 4 and plastics films 3 are wound on the core together with an additional plastics film 5 wound on the non-resilient part of the coil. The plastics material may be polystyrene, polypropylene, polyethylene terephthalate or polycarbonate. Winding is stopped when the capacitance is slightly less than that desired. The wound assembly is encased by a resilient part 7 comprising polyethylene terephthalate or silicone rubber impregnated tape and a relatively non-resilient part 8 of plastics film and a final winding of plastics film. The assembly is baked to heat-shrink the plastics material and substantially eliminate voids in the non-resilient part and the end of the assembly remote from leads 6 is filled with silicone rubber. The capacitance is set by pressure on the resilient part by means of a clamp or the like.
Patent GB-921503-A (GB)
Title: A method of polymerisation of formaldehyde
IPC: C08G2/00
Filed: 1961-09-25
Abstract: A solid high molecular weight polymer containing nitrogen is brought into direct contact with anhydrous gaseous formaldehyde. The nitrogen containing polymer may be in granular or porous form. Polyamides, polyurea and polyurethanes are preferred as polymers, they may be used in a powdered state and may be prepared by adding non-solvent to a solution of the polymer or by cooling an alcoholic solution thereof.  Other specified polymers are polypeptides, melamine-formaldehyde, polyaddition polymers of bis-lactam and diamine, addition polymers of acrylamide, polyvinyl pyridine, polyvinyl pyrolidone, and polyacrylonitrile. Specifications 748,836 and 857,321 are referred to.
Patent GB-393649-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B15/00
Filed: 1931-12-11
Abstract: 393,649. Chain stitching. BRITISH UNITED SHOE MACHINERY CO., Ltd., RICKS, F., and ALLCOCK, H. B., Union Works, Belgrave Road, Leicester. Dec. 11, 1931, No. 34353. [Class 112.] In stitching together the welt, upper, and insole of boots, means are provided for varying the amount of thread pulled off so that stitches of even setting are produced along the edges and round the toe. The invention is illustrated as embodied in the welt sewing machine of Specification 13873/10, [Class 112, Sewing &c.], with the continuous feed mechanism of Specification 115,235, [Class 112, Sewing &c.], and thread fingers of Specification 393,643. The thread finger 5 is swung about its pivot 6 by a link 7 connected by universal joints to the finger and a cam-operated lever 8. The link 7 is also connected to a knee or treadle-controlled mechanism by which the end of 9 of the link is moved along a slot 10 in the lever 8 towards the pivot 11. The treadle mechanism has associated with it a counting device which, after a predetermined number of stitches have been formed, e.g. round the toe of the shoe, automatically returns the end of the link towards the outer end of the slot 10. The cam lever 8 has a constant throw so that movement of the end of the link 7 towards the pivot of the lever 8 reduces the throw of the thread finger 5 and therefore reduces the amount of thread drawn by the thread finger. The operator therefore operates the treadle when the toe is reached. When a predetermined number of stitches have been made, the link is returned to the end of the slot for sewing along the other side of the shoe. The position of a pin 33 on the ratchet lever of the counting mechanism in the series of holes in the lever 28 determines the number of stitches made with the reduced amount of thread pulled by the finger 5.
Patent GB-1444183-A (GB)
Title: Process for the production of low-sulphur prereduced iron pellet
IPC: C22B1/24
Filed: 1973-07-19
Abstract: 1444183 Direct reduction of iron ore LUMMUS CO 19 July 1973 [20 July 1972] 34358/73 Heading C7D In a process for the production of pre-reduced iron oxide pellets, a pelletized mixture of iron ore, liquid carbonaceous binder and a sulphur scavenger is reduced at 1800‹-2500‹F, wherein (a) if the C present in the pellets is sufficient only to effect 85% or less reduction, the heating of the pellets from 1500‹F to the reduction takes less than 1 hour, and (b) if the C is sufficient to reduce greater than 85%, the heating takes from 1-6 hours. The S scavenger is CaO, CaCl 2 , NaCI, CaSO 4 , CaCO 3 , MgCl 2 , MgO, FeCl 3 , dolomite or a mixture thereof, and is present from 0À01-5 wt. per cent. In the pelletizing process, a pre-heated mixture of iron ore, e.g. tacouite, and scavenger is sprayed with hot oil, e.g. residual oil or coal tar pitch, which cracks on contact to deposit C on the mixture. The carbonized mixture is ground, fed to a pelletizer and hence to a coking kiln. Pre-heated ore and oil are added to the pellets prior to coking. The resulting pellets may have a S content of 0À03% if to be used in an electric furnace, or 0À25% for a blast furnace. The reduction may take place with additional external C present, e.g. coal, coke or a mixture thereof.
Patent GB-1019760-A (GB)
Title: Improvements in or relating to self-supporting light constructional elements for ceilings, roofs and walls
IPC: E04B1/84
Filed: 1964-08-24
Abstract: 1,019,760. Laminates. O. KREIBAUM. Aug. 24, 1964 [Oct. 31, 1963], No. 34478/64. Heading B5N. A building panel comprising core material of resin-bonded chips and skins 2, 3, of plywood, hardboard, asbestos cement or the like is formed with longitudinal ducts 4, of substantial dimensions relative to the core and containing thermal insulating material 5, e.g. of mineral or vegetable fibres or resin foam; the core is also formed with ventilating channels 6 having open sides adjacent to one or both skin layers. In modifications the materials 5 may only partially fill the ducts 4, leaving channels of sectorsection on one side thereof, or the ducts may communicate with the channels 6 by ducts 7 or similarly with the exterior of the panel. The channels 6 may contain piping &c. A dampproof layer may be provided at least on the inside of the panel, between the core and the skin or on the surface.