baber/WOPTO huggingface dataset:
Patent GB-1446227-A (GB)
Title: Photographic silver halide materials and processes
IPC: G03C5/40
Filed: 1973-11-20
Abstract: 1446227 Photographic silver halide material EASTMAN KODAK CO 20 Nov 1973 [20 Nov 1972] 53721/73 Heading G2C A photographic material comprises a support bearing at least two dye image-providing units comprising respectively (i) a silver halide emulsion layer having contained therein or in an adjacent layer a first colour coupler and (ii) a silver halide emulsion layer having a mean silver halide grain size at least 50% larger than that of the emulsion layer in unit (i) and having contained therein or in an adjacent layer a second colour coupler, (ii) also containing a black-and-white silver halide developing agent at at least 0À1 mg/ft<SP>2</SP> of support. The couplers may be dispersed as droplets of a waterinsoluble coupler solvent or solvent mixture. The second coupler may be a yellow coupler. (ii) may be nearer the support than any other emulsion layer. The black-and-white developing agent is optionally present at 0À1-200 mg/ft<SP>2</SP> of support, and is preferably a 3-pyrazolidone. (ii) may have a mean grain size of at least 0À8 micron. The dye image-providing units may be separated by interlayers. Unit(s) (i) may contain the silver halide emulsion at less than 30 mg/ft<SP>2</SP> based on silver. The coupler in unit(s) (i) may be present at at least 40% stoichiometric excess based on the developable silver in its associated emulsion layer. The material may be treated with a solution containing a cobalt (III) ion complex during or after the treatment with a colour developer solution (see Ex 1 and 2). The exposed and colour developed material may be treated with a solution containing a peroxy compound so that amplification of the dye image occurs (see Ex 3). The couplers may form diffusible or non-diffusible dyes. The incorporation of the black-and-white developing agent increases the rate of colour development, probably by shortening the normal induction period prior to development proper.
Patent GB-1185069-A (GB)
Title: Preparation of Esters
Inventor: STANLEY ROBERT HOLROYD
IPC: B01J31/12
Filed: 1967-11-28
Abstract: 1,185,069. Esterification catalysts. BRITISH TITAN PRODUCTS CO Ltd. 14 Oct., 1968 [28 Nov., 1967], No. 53987/67. Heading B1E. [Also in Division C2] Catalysts comprising a reaction product of dialkyl tin oxide R 2 SnO, and a compound MX v  or M(R<SP>1</SP>) m  X v-m  in which R represents an alkyl group, X a halogen atom or an OR' radical where R<SP>2</SP> is a hydrocarbon radical or a halohydrocarbon radical, R<SP>1</SP> represents a hydrocarbon radical, M is an atom of aluminium, silicon, boron, titanium or zirconium or a vinadyl radical, v is a valency of M and m is an integer between 1 and v-1 inclusive are used in the preparation of esters by interchange of a nonhydric alcohol with a carboxylic acid ester. The catalysts may be prepared by heating the two reactants, for example dibutyl tin oxide and titanium tetraisopropoxide, or tetrabutyl titanate, tetrakis (2-ethyl hexyl) titanate, and tetra-n-propyl titanate, or by dissolving in non-reactive solvents and refluxing or in situ.
Patent GB-1095848-A (GB)
Title: Improvements in tobacco smoke filter element
IPC: A24D3/06
Filed: 1966-12-02
Abstract: A tobacco smoke filter element comprises a tubular outer wrapper surrounding a body of compressed absorbent material having in its expanded condition passages arranged to permit axial filtering flow of smoke therethrough, and at least one frangible capsule containing a tobacco smoke-treating liquid medium positioned within said body. Breaking of the capsule by squeezing the outer wrapper releases its liquid medium content into the body of compressed absorbent material which material then expands to fill the outer wrapper substantially completely.  In one embodiment a single centrally positioned capsule is used, whereas in another embodiment microcapsules are distributed throughout a body comprising slivers of compressed absorbent material.  The liquid medium may be water, optionally including a surfactant, a flavourant such as lemon oil, menthol or a tobacco extract, or a decongestant.
Patent GB-1356377-A (GB)
Title: Guide following steering apparatus
IPC: B61B13/00
Filed: 1972-11-23
Abstract: 1356377 Steering vehicles LTV AEROSPACE CORP 23 Nov 1972 [29 Nov 1971] 54189/72 Heading B7H A vehicle adapted for following a guideway having at least one upstanding guide means, (e.g. the trackway 50 shown in Fig. 2 having guide walls 52 with inverted guide channels 51), includes a pair of steerable wheels 13, 15 at each end of the vehicle, the wheels 13, 15 being interconnected to provide four-wheel steering, and follower means 20, 30 at each end of the vehicle either of which may be independently connected to the steering system so that the steering is always effected by the leading follower means (depending on the direction of travel), the trailing follower means remaining inoperative. As described the pair of wheels 13 at one end are mounted on stub axles 13a on a main axle member 12 and are interconnected by steering arms 16 and tie rod 18 to provide Ackerman type steering. The wheels 15 at the other end are similarly interconnected by steering arms 17 and tie rods 19 and the two steering assemblies are interconnected by rods 40 and bell cranks 41 to provide four-wheel steering. The follower means at one end of the vehicle includes a transverse bar 20 carrying rollers 55, the bar 20 being supported for transverse movement by links 21, 22 on the axle member 12. The bar 20 can be selectively coupled to a control lever 23 which is connected to the steering mechanism by link 24, bell crank 25 and link 26. The control lever 23 can be coupled to the bar 20 by a pair of vice like members 63 which are threaded on to opposite sides of a double threaded shaft 61. The shaft 61 can be rotated by a reversible motor 62 to move the vice like members 63 into and out of engagement with a ball 23a on control lever 23. Similarly a follower 30 at the other end of the vehicle can be selectively coupled to a control lever 33. In use the leading follower is coupled to the steering mechanism and the trailing follower is uncoupled. The vehicle may include power assisted steering provided by servo cylinder 71 which is controlled by valve 70 or 73 depending on which follower is operative. To provide off-track steering of the vehicle, conventional manual steering (not shown) may be operatively connected to the steering mechanism.
Patent GB-1138506-A (GB)
Title: An improved loose leaf binder
IPC: B42F13/20
Filed: 1966-04-06
Abstract: 1,138,506. Filing papers. HERBERT ZIPPEL K.G. 6 April, 1966 [14 June, 1965], No. 54868/67. Divided out of 1,138,505. Heading B6E. A base-plate 39 with filing posts 50 fixed thereto has a Z-shaped plate 48 slidably mounted thereon, the upper flange 51 of the plate 48 having slots 52 to engage the free ends of the posts and secure leaves filed on the posts. The plate 48 has side extensions 54 slidably engaging grooves in raised parts 53 of the plate 39 and has slots 57 engaging pins 56 attached to the plate 39. Flexible extensions 51a are provided on the flange 51 and serve to clamp leaves held by the posts 50. Slots 42 are formed in adjacent edges of the plates 39, 48 for suspending the device from a rail 43, the slots in the two plates being aligned with one another when the plate 48 is in locking position. Slots 45, 46 are provided near the ends of the plate 39 whereby hookshaped members (27, Fig. 5) may be attached by means of studs (47) for suspending the device from side rails (44). Index tabs.-The slots 45, 46 may be used to attach lettering plates (27a, Fig. 5), to the device.
Patent GB-1490559-A (GB)
Title: Di-substituted meta-terphenyl derivatives their preparation and their use in the preparation of polymers
IPC: C07C45/28
Filed: 1974-12-19
Abstract: 1490559 Di-substituted m-terphenyl compounds INSTITUT FRANCAIS DU PETROLE 19 Dec 1974 [19 Dec 1973] 55017/74 Heading C2C [Also in Division C3] The invention comprises compounds of formula wherein R is a hydrogen atom, an alkyl radical or an aryl radical. These compounds may be obtained by treating meta-terphenyl with a mixture of an acylating agent and a Friedel Craft's catalyst (at a temperature - 80 to 20 C.), heating the reaction mixture from 10 to 80 C., separating the products consisting of 4,4<SP>1</SP>- and/or 41,4<SP>111</SP>-meta-terphenyl di-acyl derivatives, and thereafter converting said diacyl derivatives to the corresponding tetracarbonyl derivatives by a known method.
Patent GB-1498187-A (GB)
Title: Apparatus and process for the continuous treatment of substances in a flowable form
IPC: C07B31/00
Filed: 1974-12-20
Abstract: 1498187 Catalytic apparatus; mixing apparatus H H AUER 20 Dec 1974 [21 Dec 1973] 55241/74 Headings B1C and B1F Apparatus suitable for the continuous catalytic treatment, e.g. hydrogenation, of a flowable material, e.g. coal slurry comprises a housing 2, Fig. 1, including a rotor 7 and an opposed stator defining a reaction zone therebetween, the rotor and stator each comprising a plurality of coaxial rings 8 and 9 of graduated diameter, each ring having an annular row of teeth formed thereon or being provided with an annular portion having a plurality of apertures defined therein, at least some of the rings 8 and 9 being provided with a bore or bores e.g. 18a, b, c, Fig. 2 connected to ducts 18 for introducing catalyst to the reaction zone, an inlet 10 for flowable material, and an outlet means 11 for discharging products. Recycle means may be provided. Specification 1498186 is referred to.
Patent GB-1281064-A (GB)
Title: Combustible fuel container
IPC: C10L5/34
Filed: 1969-11-12
Abstract: 1281064 Solid fuel MOBIL OIL CORP 12 Nov 1969 55322/69 Heading C5G A combustible container encloses a solid fuel, a major proportion by weight of which has an ignition temperature above 2000 C. The container is coated with a material which leaves a residue after combustion which is sufficiently strong to be self-supporting and to withstand the weight of the solid fuel. The container may be made of paper, e.g. newsprint, or cardboard, corrugated board, pressboard, wood, woodpulp, cotton cloth, or plastic material, and may be laminated and the coating material may be an epoxy, acrylic, phenol - aldehyde, or ureaaldehyde resin, or a silicate or phosphate of Na, Ca, Ba or Al, or Na or K borate. A preferred fuel comprises petroleum coke, sawdust, charcoal, Na nitrate and starch. An igniting composition may be applied to at least a portion of the fuel. The coating material may comprise from 5 to 20% b.w. based on that of the container.
Patent GB-1418480-A (GB)
Title: Heaters for water beds
IPC: B29C70/34
Filed: 1972-12-01
Abstract: 1418480 Bed-heater SAFEWAY PRODUCTS Inc 1 Dec 1972 [1 Dec 1971] 55677/72 Heading H5H [Also in Division B5] A water bed heater is manufactured by arranging a heating wire assembly 32 on an uncured sheet 31 of styrene butadiene rubber, connecting a thermal switch 38 to the heating wire assembly 32, mounting a pressure resistant protective shield 40 over the thermal switch 38, mounting a second sheet 29 of uncured styrene butadiene rubber on the first sheet 31, and curing the assembly with heat and pressure to bond the sheets 29 and 31 to form a unitary waterproof sheath. As shown, sheet 31 is mounted on pin board 46, wire 32 is wound about pins 49, wire 32 is cut and the thermal switch 38 is connected to the cut wire to overly the densest portion of the wire assembly, nylon reinforced neoprene plies 42 are positioned on sheet 31, thermal switch 38 is positioned on plies 42, pressure resistant shield 40 which may be solid or laminated styrene butadiene rubber is positioned over thermal switch 28, plies 43 similar to plies 42 are positioned on shield 40 and finally sheet 29 is secured with a temporary bond produced by a rubber spray, to sheet 31. The power supply cable which is secured to the heating wire is also positioned between reinforced neoprene plies sandwiched between the sheets 29, 31. Finally, the assembly is removed from the pin board, placed in a sealed flexible container which removes all the air from between the sheets 29, 31 and the air from the pocket 44 containing thermal switch 38, and subjected to 60-100 p.s.i. steam pressure in an autoclave for sixty minutes to cure and seal the heater. The water bed heater is positioned beneath the water mattress which has a temperature sensor secured thereto.
Patent GB-1375278-A (GB)
IPC: H02P7/293
Filed: 1972-12-04
Abstract: 1375278 Automatic current control METABOWERKE KG CLOSS RAUCH & SCHNIZLER 4 Dec 1972 [21 Jan 1972] 55864/72 Heading G3R [Also in Division H2] The spindle of an electric tool is driven by a series-wound motor through gearing which is selected to limit the no-load rotation speed of the spindle to a safe value if an electronic speed regulator should fail. As shown, a series motor 2 in an angle grinder has field windings 16, 21 armature 20 and may be supplied from A.C. mains over a main switch 13 and anti-parallel rectifiers 19,43. Rectifier 43 is phasecontrolled by a uni-junction transistor 41 biased by an RC circuit comprising a capacitor 42, resistor 49 and transistors 29, 40. In use, switch 13 is closed and the motor is initially supplied over resistors 17, 18 and rectifier 19. A capacitor 28 charges so that transistor 29 turns on, allowing the UJT 41 to trigger the SCR 43 on alternate halfcycles. After a pre-set delay, a switch 34 closes, placing a primary winding 35 of a current transformer in series with rectifier 19, and shorting  resistors 17, 18 so that capacitor 28 discharges. The triggering of SCR 43 is now controlled by the current developed in secondary winding 36 which biases transistor 40 to vary the breakdown time of UJT 41. Increasing load on the grinder increases the motor current, causing increased power to be applied to the windings, so that the motor speed and current are stabilized. A speed step-down ratio of 3À5 between the motor shaft and tool spindle is said to limit the no-load speed to a safe value if the control circuit should fail.
Patent GB-1174255-A (GB)
Title: An Improved Mechanical Handling Apparatus
IPC: F15B11/20
Filed: 1966-12-15
Abstract: 1,174,255. Mobile luffing arm apparatus. A. VALLA and G. E. VALLA, [trading as ANTONIA VALLA & C.S.N.C.]. 15 Dec., 1966 [22 Dec., 1965], No. 56272/66. Heading B8H. Mechanical handling apparatus comprises a frame support 1, an extendible and pivotable boom 2, a pair of double-acting cylinder and piston means including cylinders 20, 27 connected at spaced apart points to the support 1 and pistons 21, 28 connected to which are pistonrods 22, 29, the effective area of the piston 21 facing the support 1 being equal to that of the piston 28 facing away from the support 1, a rigid member 31 interconnecting the rods 22, 29, and fluid pressure supply means including valves 15, 36 which are operable selectively so that the member 31 is moved towards or away from the support 1 without changing its inclination thereto or is inclined in either direction relative to the support 1. The cylinder and piston means 20 . . . 22 is connected within the boom 2 and is used to extend or retract the latter, and the cylinder and piston means 27 . . , 29 is connected between a link 25 and the member 31 to which is connected a fork 35, the cylinder and piston means and the members 25, 31 making an articulated quadrilateral. In operation, the fork 35 may retain its orientation relative to the ground while the boom is moved, or it may be tilted relative to the ground, by appropriate operation of the valves 15, 36. The fork may be replaced by a shovel.
Patent GB-1108228-A (GB)
Title: Shoe lasting machine
IPC: A43D25/047
Filed: 1966-07-01
Abstract: The subject-matter of this Specification forms part of that described in Specification 1,108,221, but the claims differ.
Patent GB-1253048-A (GB)
IPC: F42B3/11
Filed: 1968-12-02
Abstract: 1,253,048. Detonators. DYNAMIT NOBEL A.G. 2 Dec., 1968 [1 Dec., 1967], No. 57166/68. Heading F3A. A detonator comprises an outer case 1 which is capable of being decomposed by sea water after a predetermined time to render the detonator harmless, comprises an outer casing 1 of magnesium, or, an alloy thereof in which the magnesium is a major constituent. A container 3 for a primary charge 4 is formed of a metal or alloy of greater standard electrode potential than the material of the casing 1, whereby decomposition of the casing 1 is accelerated by electrolytic degradation once the sea water has broken through the outer casing. The container 3 is formed of nickel or nickel-plated copper, and the magnesium alloy of the case 1 is a secondary or tertiary alloy with one or two of silicon, bismuth, zinc and calcium. An electric fuse 2 is provided to ignite the primary charge. The primary charge is lead azide and the secondary charge 5 is tetryl.
Patent GB-1245939-A (GB)
Title: Portable collapsible work bench
Inventor: SOLO ALAN J
IPC: B25H1/04
Filed: 1968-12-03
Abstract: 1,245,939. Work-benches. CREATIVE ENVIRONMENTS Inc. 3 Dec., 1968, No. 57408/68. Heading B4X. A portable collapsible work-bench comprises an A-frame including two side supports 12, 14 hinged together along their top edges for movement between an open (as shown) and a collapsed position, and a pair of work tables 46, 48 mounted by pivots 62, 64 to a respective support 12, 14 and movable between a working position (as shown) and a storage position and each having at its end remote from the pivot a pair of hinged legs 70, 72. The bench may be retained in an open (as shown) or partially collapsed position by means of a notched bar 20 on one support, engageable with a peg 28 on the other, and in the collapsed position by means of a hook and eye. The tables are retained in their storage position by pegs 42, 44 held on chains. On each support 12, 14 beneath the level of the pivots 62, 64 may be provided peg-boards for the reception of tool-supporting hooks. Detachable shelves and storage racks may be provided.
Patent GB-1246520-A (GB)
Title: Electrofilter electrodes
Inventor: FUTTERER BODO
IPC: B03C3/41
Filed: 1969-11-25
Abstract: 1,246,520. Electrostatic separators. INTERELECTRIC SACHSELN A.G. 25 Nov., 1969 [25 Nov., 1968], No. 57700/69. Heading B2J. A perforated electrode for an electrostatic separator is formed by electro-plating on a sheet-like support layer 1 a thinner layer of a material 3 which is more resistant to burning than the material of the support layer. The support layer may be copper, nickel or iron and the electro-plated layer may consist of titanium, tantalium, molybdenum, platinum, tungsten or carbon and may have a thickness of less than 10 microns. A number of electroplated layers may be formed between a number of support layers.
Patent GB-1188272-A (GB)
Title: Cutting Head for a Band Saw Machine
IPC: B23D53/02
Filed: 1968-04-18
Abstract: 1,188,272. Sawing. CONTINENTAL MACHINES Inc. 18 April, 1968 [28 Nov., 1967], No. 57851/68. Divided out of 1,188,271. Heading B5L. The subject matter of the present Specification is identical with that contained in Specification 1,188,271 but the claims are directed to a cutting head for a band saw machine comprising an upright column, upper and lower pulleys rotatable on parallel horizontal axes spaced a distance from the column, an endless saw band trained over the pulleys, arm means extending from the column for rotatably supporting the upper pulley, other arm means pivotally connected to the column and rotatably supporting the lower pulley, and means on the column for effecting movement of the other arm means to effect tensioning of the saw band.
Patent GB-1419667-A (GB)
Title: Sound generator
IPC: G10K7/04
Filed: 1973-12-17
Abstract: 1419667 Siren K KOLAR 17 Dec 1973 [22 Dec 1972] 58285/73 Heading G5J A siren with coaxial cylinders 22, 23 has a seal 29 between them to prevent the compressed air supplied via pipe 26 to chamber 27 from leaking via the gap 32 between the cylinders. The outer cylinder 22 is rotated by a motor 20 while the inner is still. The seals and cylinders have communicable openings 28, 30, 31. The opening in the seal 30 may be larger in diameter than that of the stator 28. The seals may be held in place by ring-like projections (33, Fig 2, not shown) surrounding the passage openings on the stator, or by depressions (34, Fig. 3, not shown). Grooves (37) may be provided in the bottom of each depression such that the air pressure pushes the seal against the rotor, alternatively a layer of resilient material such as foam rubber may be used. The sealing element may be made from the form of carbon used for electrical brushes, or synthetic plastics. The rotor may be of copper.
Patent GB-1212280-A (GB)
Title: Treatment of waste gases
Inventor: FINFER EDWARD ZACHARY
IPC: B01D53/50
Filed: 1968-12-10
Abstract: 1,212,280. Removal of sulphur oxide. CHEMICAL CONSTRUCTION CORP. 10 Dec., 1968 [15 Dec., 1967]; No. 58742/68. Heading C1A. Sulphur oxides are removed from a waste gas by scrubbing the gas with aqueous alkali, cooling the resulting solution to precipitate sulphate and sulphite, separating the precipitate and recycling the residual solution to the scrubbing stage after addition of make-up alkali, and contacting the precipitate with reducing gas at an elevated temperature, forming sulphur and alkali, the alkali being recycled as at least part of the make-up alkali. The waste gas treated may be a flue gas, and ash contained in it is removed after the scrubbing stage and before cooling to between 5‹ and 40‹ C. to obtain the' precipitated sulphite and sulphate. The temperature of the scrubbing alkali may be between 45‹ C. and 65‹ C. and it may contain between 1 and 5 gm. of dissolved alkali metal carbonate per 100 ml. The preferred alkalis are sodium carbonate and hydroxide. The precipitated crystals, if nydrated, may be heated to obtain the anhydrous form, end after drying, the crystals may be ground with suitable fuel, and reducing gases passed over the mixture, preferably in a fluidized bed. The gases used may be coal combustion gases or cracked hydrocarbon or natural gas, and the temperature of the gases may be between 700‹ C. and 900‹ C. The vapour phase sulphur obtained may be separated from CO 2 , CO and N 2  by cooling and absorption into molten sulphur.
Patent GB-1336958-A (GB)
Title: Process for treating briquettes of fine-grain material
IPC: C10L5/26
Filed: 1971-12-17
Abstract: 1336958 Fuel briquettes BERGWERKSVERBAND GmbH 17 Dec 1971 [19 Dec 1970] 58806/71 Heading C5G The efflorescence in fuel briquettes bound with water soluble binders is prevented by heating them to 100-200‹ C. and dipping them at that temperature for 5 to 20 seconds in a solution containing 0À3 to 1À2 wt. per cent of an alkali metal salt of methyl silicic acid. The preferred salts are sodium and potassium methyl siliconates, and the fuels fine anthracite and lean coal.
Patent GB-1339636-A (GB)
Title: Pharmaceutical compositions for inducing skeletal muscle  relaxation
IPC: A61K31/55
Filed: 1971-12-20
Abstract: 1339636 Compositions comprising cyclobenzaprine and diazepam MERCK & CO INC 20 Dec 1971 [28 Dec 1970] 59047/71 Heading A5B A composition in dosage unit form having skeletal muscle relaxant activity comprises a therapeutically effective amount of cyclobenzaprine or pharmaceutically acceptable non- toxic acid addition salts thereof and diazepam. The compositions may be in a form suitable for oral, parenteral or rectal administration and may be in the form of an animal food premix.