baber/WOPTO huggingface dataset:
Patent GB-1500310-A (GB)
Title: Photoconductive materials
IPC: H01B1/00
Filed: 1975-12-18
Abstract: 1500310 Electro-photographic members EASTMAN KODAK CO 18 Dec 1975 [20 Dec 1974] 51897/75 Heading G2C An electro-photographic member contains two photo-conductive layers, one layer comprising a continuous polymer phase and a discontinuous phase of a cocrystalline complex of a polymer containing alkylidene diarylene groups and a pyrylium, thiapyrylium or selenapyrylium dye salt and being capable of generating charges and the other layer containing an organic photo-conductor but no cocrystalline complex and being capable of transporting charges. Preferably the complex layer is sensitive to 520-700 n.m. and the organic photoconductive layer is not sensitive to this range. Specified organic photo-conductors are tri-ptolylamine, polyvinyl carbazole/trinitrofluorenone (PV.K/TNF) complex, bis-(4 diethylamino) tetraphenylmethane and triphenyl methanes. An organic photo-conductor may be added to the continuous phase of the complex layer, preferably the same as that added to the charge transport layer. Preferably, the complex layer is coated on a polyester support with a Ni layer subbed with a vinylidenechloride copolymer and then overcoated with a thicker, organic photo-conductive layer. However, for positive charging, the photoconductive layers are coated in the reverse order. If visibly opaque organic photo-conductors are used (e.g. PVK/TNF), the member is exposed through the transparent support if the complex is the lower photo-conductive layer. The materials show a greater activity in the 600-680 n.m. range than single layer, materials of the cocrystalline complex. Other subbing layers and supports may be used.
Patent GB-1094428-A (GB)
Title: Treatment of dehydrated potatoes
IPC: A23L19/12
Filed: 1966-11-21
Abstract: Dehydrated potatoes are subjected to ionizing radiation in the range of 1-10 mega rads while being held at a temperature below -100 DEG C. to reduced their dehydration time.  In the examples a cobalt 60 radiation source, and a temperature of -185 DEG C. obtained by means of liquid nitrogen, are used.
Patent GB-1165798-A (GB)
Title: Method of Producing Heat and Wear-Resistant Parts
Inventor: YAMAMOTO HIDESUKE
IPC: B02C23/00
Filed: 1967-11-20
Abstract: 1,165,798. Making heat and wear resistant components. H. YAMAMOTO. 20 Nov., 1967 [14 March, 1967], No. 52719/67. Heading B3A. [Also in Division B2] A method of making a heat- and wearresistant component comprises making the body of the component from a plain carbon or low alloy ferritic steel, forming fins on a portion of the body which is subjected to wear, and depositing a heat- and wear-resistant material between adjacent fins, the body and fin materials having a higher heat conductivity than the heat- and wear-resistant material. A blade member of a crusher for hot sintered masses is made from a body 7 of plain carbon steel and fins 8 of soft steel are positioned on the body. The spaces between the fins 8 are filled with a heat- and wear-resistant material, such as 13% manganese steel, 12% chromium stainless steel, 12% chromium tool steel, or a cast steel containing 2À8-3À0% C., 0À5-1À5% Si, 1À0% Mn, 15À0-28 0% Cr, 1À0% Ni, 0-0À5% Mo, 0-2À0% W. The method is also applicable to other components of the crusher such as the crushing plates and guide bars. In the latter, the fins comprise rods 14 welded to the top and side surfaces of the bar body 13.
Patent GB-1507544-A (GB)
Title: Linear beam tubes
IPC: H01J19/02
Filed: 1975-12-29
Abstract: 1507544 Linear beam tubes ENGLISH ELECTRIC VALVE CO Ltd 1 Dec 1976 [29 Dec 1975] 52944/75 Heading H1D The gridded electron gun of a linear beam tube has a concave cathode surface 1 with a plurality of individual emitting areas formed by channels 2 in the cathode surface. The channels may be circular and concentric (Figs. 1 to 4, not shown), or radial, as in (Figs. 5 and 6, not shown), and Fig. 7, in which case the channels taper to smaller width and depth towards the centre of the cathode. The gun further includes aligned shadow grid 3 and control grid 4. The radial arrangement of channels avoids misalignment of the grids and emissive areas arising due to thermal expansion.
Patent GB-1241679-A (GB)
Title: Process for the production of acetic acid
IPC: C07C51/25
Filed: 1968-11-08
Abstract: 1,241,679. Acetic acid. CHEMISCHE WERKE HULS A.G. 8 Nov., 1968 [10 Nov., 1967], No. 53017/68. Heading C2C. Acetic acid is prepared by the gas phase oxidation of n-butene- 1, cis-butene-2, transbutene-2, sec-butanol, isobutanol, tert-butanol, isopropanol, methylethyl ketone, isobutyraldehyde, or acetone at 200‹ to 400‹ C. in the presence of steam in contact with titanium, aluminium, antimony or tin vanadate with or without a carrier as catalysts in a process in which the starting material is supplied in batches to successive reactors while the air for conversion is added in one batch of 40 to 90% by volume and steam is added in one batch of 10 to 60% by volume to the first reactor. From 2 to 10 reactors may be used in series and the catalysts may be in mixed or fluidized beds. The gas may be passed through intermediate condensers during the total oxidation.
Patent GB-1449656-A (GB)
Title: Cephalosporin derivatives and their preparation
IPC: C07D501/10
Filed: 1973-11-15
Abstract: 1449656 Cephalosporins SUMITOMO CHEMICAL CO Ltd 15 Nov 1973 [15 Nov 1972] 53164/73 Headings C2P and C2C The invention comprises compounds of formula (wherein R<SP>1</SP> is C 1-4  alkyl and COOR<SP>2</SP> is an esterified carboxy group); their preparation from compounds of formula (see Specification 1,449,657) by reaction with an acidic compound in an inert solvent; and the conversion of compounds II into compounds of formula by reaction with phosgene in an inert solvent in the presence of an acid-acceptor.
Patent GB-1293557-A (GB)
Title: Fibre-reactive, water-insoluble dyestuffs, processes for their manufacture and their use
IPC: C09B62/485
Filed: 1969-10-31
Abstract: 1293557 Fibre-reactive, water-insoluble dyestuffs FARBWERKE HOECHST AG 31 Oct 1969 [7 Nov 1968] 53487/69 Heading C4P [Also in Divisions C2 and D1] Novel reactive dyestuffs free from acidic groups conferring solubility in water contain at least one fibre-reactive acyl residue Z of a halogenated cyclobutane containing a carboxylic acid amide or sulphonic acid amide group bound to the remainder of the dyestuff molecule through the nitrogen atom. A preferred value of Z is  in which T 1  and T 2  are each Cl, CN, NO 2 , T<SP>1</SP>, OT<SP>1</SP>, -COOT<SP>111</SP>, -SO 2 NT<SP>1</SP>T<SP>11</SP>, -SO 2 T<SP>1</SP> or -CONT<SP>1</SP>T<SP>11</SP> or the 2 symbols T 1  can jointly represent a further double bond between C<SP>1</SP> and C<SP>4</SP>, T<SP>1</SP> and T<SP>11</SP> are each H, alkyl, aralkyl or aryl, T<SP>111</SP> is alkyl or aryl, X is H or halo, and W 1  is -CO-, -SO 2 -, -SO 2 -CH 2 CH 2 -, -COCH = CH- or -COCHT<SP>11</SP>CHT<SP>1</SP>- and is bound to the dyestuff molecule through the group -NT<SP>1</SP>-, and the two T 1  groups and X atoms may be the same or different. The dyestuff may, for example, be of the azo, particularly mono-azo or disazo, anthraquinone, perinone, quinophthalone, styryl or nitro dyestuff series. Z is introduced into a dyestuff or dyestuff component by N-acylation, e.g. the dyestuff or precursor contains at least one group -NHT<SP>1</SP> and is acylated by means of a compound of the formula Z-hal. Azo dyestuffs may be formed by known diazotization and coupling methods using coupling components at least one of which contains the necessary fibre-reactive residue. Dyestuffs of the formulµ are prepared by condensing N,N-(di-#-acetoxyethyl)-p-aminobenzaldehyde with N-(4-nitrophenyl)-cyano-acetamide and then reducing the nitro compound to the amino compound. A dyestuff is prepared by coupling diazotized 3- amino - 4 - chlorobenzotrifluoride with 1 - (3<SP>1</SP>- aminophenyl)-3-methyl-5-pyrazolone.
Patent GB-1127688-A (GB)
Title: Improvements in apparatus for drying travelling webs
IPC: D21F5/00
Filed: 1966-11-30
Abstract: 1,127,688. Drying webs. VALMET OY. 30 Nov., 1966 [1 Dec., 1965], No. 53517/66. Heading F4G. Apparatus for drying a web A comprises an outer, stationary cylindrical or part-cylindrical surface having outlet and intake apertures 10, 11 alternating in the direction of web travel for the passage of air which both spaces and supports the web from the surface. The air flow is generated by the impellers 2 of spaced centrifugal blowers mounted on a common shaft 1 within the apparatus so as to have suction chambers 3, 3<SP>1</SP> on each side of each blower communicating with the intake apertures 11 through flow channels 13 and the pressure chamber 4 of each blower is connected to the outlet apertures 10 through flow channels 12. The channels 12 and 13 are formed by partitions and vanes (not shown), guide the air flow. Air heating tubes 5 are positioned between in the chambers and have fins 6 of arcuate form partially encircling the impellers and perpendicular to the shaft 1. For drawing in the web, the apparatus may be entirety stationary or it may be rotary in its entirety or only its shell.
Patent GB-1486625-A (GB)
Title: Quaternary ammonium salts useful as retarders in dyeing anionic polyacrylonitrile fibres
IPC: C07D251/70
Filed: 1974-12-12
Abstract: 1486625 Dyeing polyacrylonitrile BASF AG 12 Dec 1974 [13 Dec 1973] 53734/74 Heading D1B [Also in Division C2] Novel retarders for the dyeing of anionic polyacrylonitrile fibres with basic dyes are quaternary ammonium salts of formula I: wherein A is an oxygen atom or an imino group -NR- in which R is H or alkyl of 1 to 4 carbon atoms, the groups R<SP>1</SP> to R<SP>9</SP> are each independently straight-chain or branched, optionally hydroxy-substituted alkyl of a total of 1 to 30 carbon atoms (optionally interrupted by oxygen or nitrogen) or are aryl-substituted alkyl of 1 to 4 carbon atoms, or R<SP>1</SP> and R<SP>2</SP> and/or R<SP>4</SP> and R<SP>5</SP> and/or R<SP>7</SP> and R<SP>8</SP> together are alkylene of 4 to 6 carbon atoms, k and m independently of one another are 0 or 1, Z is alkylene of 2 to 6 carbon atoms in the chain, which may be substituted by hyroxyl or methyl and interrupted by oxygen, Y- is a monovalent or inorganic anion or is the x-th part of an x-valent organic or inorganic anion (x being a positive integer greater than 1), n equals the sum of 1+k+m provided that the sum of the carbon atoms in R' to R<SP>9</SP> inclusive is 9 to 60 and that at least one of R<SP>1</SP> to R<SP>3</SP>, R<SP>4</SP> to R<SP>6</SP> and R<SP>7</SP> to R<SP>9</SP> includes a radical having at least 3 carbon atoms linked together sequentially. Examples describe the dyeing of anionically modified polyacrylonitrile high bulk yarn at 95C with the cationic dye of formula: and using retarders of formula I in which A is -NHZ is -(CH 2 ) 2 - or -(CH 2 ) 3 -, R<SP>1</SP>=R<SP>2</SP>=CH 3  R<SP>3</SP>=2-ethylhexyl, dodecyl, C 16-18  alkyl, benzyl or p-chlorobenzyl and Y=Cl.
Patent GB-1419159-A (GB)
Title: Circular knitting machines
IPC: D04B15/32
Filed: 1973-11-20
Abstract: 1419159 Knitting machines JUMBERCA SA 20 Nov 1973 [20 Nov 1972 (2)] 53765/73 Heading D1C A cam system for the needles and jacks of a circular machine comprises rings 3, 2 having detachable, equidistant columnar cam supports 17, 13. The cams 6, 10, 11 arranged thereon are flat. The needle cams 10, 11 are fixed to a slide 18 adjustable against a tension spring 23 by a screw 21 and fingerwheel 22.
Patent GB-1158158-A (GB)
Title: Process Of Molding And Apparatus Therefor
IPC: B29C45/16
Filed: 1966-12-02
Abstract: 1,158,158. Injection moulding containers &c. COLUMBIAN CARBON CO. 2 Dec., 1966 [3 Dec., 1965], No. 54172/66. Heading B5A. A method of moulding a plastics article, e.g. a container or cabinet, comprises injection moulding a frame on a core in one mould, the frame having a plurality of openings therethrough, placing the core and frame thereon in another mould and then injecting plastics material of a different colour or composition to fill spaces within the frame members to form the container. An indexable, reciprocable lower platen 32 supports three lower mould members 54, 56, 58 while an upper platen 30 supports two downwardly depending upper mould members 60, 62. Two injection units 34, 44 (Fig. 6) cooperate with conduits 42, 52, respectively. In operation, the platen 32 is indexed to align mould members 54, 58 with members 60, 62 respectively and then raised. Movable segments 72, 77 engage guide portions 64 while inclined pegs 86, 94 on mould bases 54, 58 engage bores 84, 92, respectively, to facilitate closing. When the injected plastics material has hardened, platen 32 is lowered, segments 72, 77 being guided apart by the pegs 86, 94 and then the platen is indexed to move the lower mould members on by 120 degrees. A completed article is removed from mould member 58 and the cycle is repeated.
Patent GB-1127080-A (GB)
Title: Hair dye compounds and compositions
Inventor: KALOPISSIS GREGOIRE
IPC: D06P3/14
Filed: 1966-12-05
Abstract: 1,127,080. Nitrophenylenediamine derivatives. L'OREAL. 5 Dec., 1966 [3 Dec., 1965; 13 April, 1966; 19 Oct., 1966], No. 54372/66. Heading C2C. [Also in Divisions C4 and D1] The invention comprises compounds of the formula and salts thereof where one of R 1 , R 2 , R 3  and R 4  is of the formula -(CH 2 ) n -N(R 6 )R 7  and the others are hydrogen or alkyl of 1-6 carbon atoms, n is 2-6, R 6  and R 7  are hydrogen, alkyl of 1-6 carbon atoms or form a ring with the nitrogen atom and R 6  is hydrogen, halogen or alkyl or alkoxy of 1-6 carbon atoms, with the proviso that when R 1  or R 2  is -(CH 2 ) n -N(R 6 )R 7  then R 6  and R 7  are not hydrogen. The compounds may be prepared by reacting together compounds of the formulµ where X is halogen or nitro, or by reacting compounds of the formulµ and R 3 -NH-R 4  where X is halogen, arylsulphonating one of the hydrogen atoms on the primary amino group and condensing an alkali metal or alkaline earth metal derivative of the product with a compound of the formula Y-(CH 2 ) n -N(R 6 )R 7  where Y is halogen. Quaternary ammonium and acid addition salts may be formed by the addition of a quaternizing agent or an acid to the compounds. Intermediates isolated are 1-amino, 1-benzenesulphonylamino and 1-N-benzenesulphonylamino - N - # - diethylaminoethylamino - 3 - dimethylamino-4-nitro-6-methylbenzene.
Patent GB-1483122-A (GB)
Title: Electrical resistance furnaces
IPC: C01B31/36
Filed: 1974-12-18
Abstract: 1483122 Electric furnaces ELEKTROSCHMELZWERK KEMPTEN GmbH 18 Dec 1974 [21 Dec 1973 6 May 1974] 54725/74 Heading F4B An electric resistance furnace has a porous bed 15 at the bottom, in which is embedded a first flue 16, and a sheet 19, covering a heap 12 of mixture, under which sheet is a second flue 16a, the flues serving to draw off gaseous reaction products formed in the heap. A resistive core is placed between conductors 13 to heat the mixture surrounding the core. The core may be of granular coke provided with an inner core of graphitized coke. The furnace may be for the production of silicon carbide, in which case the mixture may be granular coke and quartz sand, with auxiliary substances such as sawdust and sodium chloride. The flues are connected to extractors having means to adjust the rate of removal of the gas. An excess pressure may be allowed to build up under the sheet serving to support it. Specifications 1,483,123 and 1,483,121 are referred to.
Patent GB-1283698-A (GB)
Title: Devices for side-dressing swage set saws
Inventor: SHANKS JACK WILFRED
IPC: B23D63/00
Filed: 1968-11-20
Abstract: 1283698 Rolling NATIONAL RESEARCH DEVELOPMENT CORP 19 Nov 1969 [20 Nov 1968] 55124/68 Heading B3M [Also in Division B5] A device for side dressing swage set saws comprises a pair of rollers 13 rotatable about adjustably spaced axes and adapted to simultaneously engage the two sides of each tooth of a saw in succession upon relative movement of the device and teeth in a direction parallel to the toothed edge of the saw, the swage on each tooth being side-dressed by co-operation with the surfaces of the rollers, and a guide 29 which has a surface for engaging the tips of the saw teeth to determine the positions of the roller surfaces widthwise of the saw. In the device described, the rollers 13, Figs. 1 and 2, are mounted for rotation in side members 3, 5, Fig. 2, connected by a bridge member 1. The member 3 is adjustable towards or away from the member 5. The guide member 29 is adjustable towards or away from the member 1 to vary the location of the teeth relative to the operative surfaces of the rollers 13. The rollers 13 as shown have frusto-conical surfaces 25 for forming the swage on the saw teeth but may have parallel sides to form a parallel-sided swage. The rollers 13 may be replaceable by ones of different shape. The member 29 may be inclined or the rollers 13 of one pair may be of a different shape from those of the other pair to perform the side-dressing in two stages. The device is moved along the saw by handles 39, and a pawl device 41 enables it to be moved relative to the saw in one direction only. The device may include more than two pairs of rollers or one pair. After swaging by the device the upper surfaces of the teeth are ground flat.
Patent GB-1183352-A (GB)
Title: Improvements in or relating to Optical Microscopes
Inventor: PETRAN MOJMIR
IPC: G02B27/00
Filed: 1967-12-05
Abstract: 1,183,352. Microscopes. CESKOSLOVENSKA AKADEMIE VED. Dec.5, 1967 [Dec.5, 1966(2)], No.55206/67. Heading G2J. A microscope has a Nipkow disc 1, Fig.4, which is rotated in the path of the illuminating beam so that a spot of light is focused by the objective 4' on to the specimen plane 6 and the light therefrom is focused by objective 4" into the phase of the Nipkow disc which is in the plane of eyepiece 13, the arrangement being such that light diffracted by the system is largely rejected as the Nipkow disc in the plane of the eyepiece has such small holes that it practically only accepts the rays corresponding to the geometrical image of the illuminated spot. As shown, corresponding holes of the two Nipkow spirals are radially spaced by 180 degrees and the illuminating and image forming beams are passed through systems 2, 5, which invert in planes which are 90 degrees to one another i.e. half the corresponding angle in the Nipkow disc. There may be a series of spirals, e.g. 80, in the disc so that there is simultaneous scanning by a number of light spots each of which may be of the size of the corresponding Airy disc, the Nipkow disc being rotated by a motor 17. The objectives 4', 4", are adjustable by screws 29, 30, specimen mounting 33 by screw 32 and inverting mirror systems 2, 5, by an arrangement of screws, Fig.5 (not shown). In a modification, Fig. 2 (not shown) the illuminating beam is reflected by a partial reflector (3) and focused by the objective (4) on to the specimen plane (6), the image forming rays passing through the same objective (4) and then through the partial reflector (3) to the image plane.
Patent GB-1110559-A (GB)
Title: Improvements in filters
IPC: B01D24/00
Filed: 1965-12-31
Abstract: 1,110,559. Filter bed for water. G. T. J. FOX. 30 March, 1967 [31 Dec., 1965], No. 55369/65. Heading BID. A downward flow filter bed for water comprises successive layers of granular media 8-11, whose average particle sizes decrease and whose densities increase downwards, supported on porous Al 2 O 2  plate 7 and having a wire mesh screen 12, finer than coarse layer 11, spaced therabove to restrain bed during backwash cleaning by gas and liquid. Top layer 11-1-5 m.m. diameter and Sp. Gr. 1.04- 1.10, layer 10-0.75-1.0 m.m. diameter, Sp. Gr. 1.3-1.7, layer 9-0.5-0.7 m.m., Sp. Gr. 2.6-2.7, layer 8-0.4 m.m.. Sp. Gr. 3.7-4.3 (diameters of irregular particles are defined in terms of sieve sizes). Layer 11 may be nylon or polystyrene cubes and 1 foot thick, layer 10 anthracite, 9 inches thick, layer 9 sand, 9 inches thick, layer 8 garnet, 6 inches thick. Screen 12 is 2 feet above layer 11 to allow over 50% expansion. Plate 7 and screen 12 are removable.
Patent GB-1186880-A (GB)
Title: Heterocylic Compounds, their preparation and use
IPC: A01N43/828
Filed: 1967-12-07
Abstract: 1,186,880. Herbicides containing benzothiadiazoles, benzofurazans or benzosclenadiazoles. SHELL INTERNATIONALE RESEARCH MAATSOHAPPIJ N.V. 7 Dec., 1967 [9 Dec., 1966 (2)], No. 55754/67. Heading A5E. [Also in Division C2] Herbicidal and defoliant compositions comprise a compound of formula: where R is oxygen, sulphur or selenium, X is cyano or thiocarbamoyl, n is 0 to 3, Y is chlorine, bromine, nitro, C 1-8  alkyl, amino, cyano or thiocarbamoyl, together with a carrier and/or a surface-active agent. The compositions may be formulated as wettable powders, dusts, granules, solutions, emulsifiable concentrates, emulsions and pastes, and may contain conventional additives including other biologically active compounds.
Patent GB-1322858-A (GB)
Title: Pneumatic antiskid braking system
IPC: B60T8/36
Filed: 1971-12-02
Abstract: 1322858 Antiskid braking system SOC ANON DBA 2 Dec 1971 [11 Dec 1970] 56029/71 Addition to 1250728 Heading F2F In an improvement in or modification of the pneumatic antiskid braking system of Specification 1,250,728, the exhaust valve 44 is also operatively connected to a piston 52 and cylinder 54 controlled by means of a pilot valve 38 which is integral with exhaust valve 36, the two valves being directly controlled by the antiskid control unit 32.
Patent GB-1404797-A (GB)
Title: Cutting apparatus and method
IPC: B23Q35/10
Filed: 1972-12-06
Abstract: 1404797 Cutting apparatus TRI-ORDINATE CORP 6 Dec 1972 56213/72 Headings B3T and B3B Cutting apparatus is for cutting grooves that intersect at an acute angle, in particular arcuate grooves, 7, 7<SP>1</SP>, 8, 8<SP>1</SP>, and 9, 9<SP>1</SP> in a Wankel engine rotor. The embodiment of Figs. 3 and 5 shows a workpiece 5, a cam member 16 and cam follower units 16, 17 and 18. Each follower has inner rollers 24, 25 engaging inner tracks of the cam, and an outer roller 26 biased against an outer track of the cam. These tracks have the same centre of curvature as the arcuate sides of the workpiece. The grooves in a workpiece are joined by zones of intersection, 10, 11, 12 whereby cutting head 2<SP>1</SP> can be realigned with following grooves to be cut. The follower units are mounted on a housing 28 which is rotatably mounted on a stationary post 27. Each follower consists of a slider 32 for radial movement, a post 33 fixed thereto for rotatably mounting a housing 34. The rollers are fixed to this housing as is head 2<SP>1</SP>. A motor 35 drives roller 26 and thus the follower unit about the cam member. The workpiece 5 is mounted on a support means that has a fast approach and retraction speed to the cutting head and an incremental feed during cutting. This incremental feed occurs when the cutting tools are in the zones of intersection. The different feed speeds can be achieved by the use of electromagnetic clutches and gearing or by hydraulic rams, Figs. 11, 12, 22, 24, 25, 26 (not shown). There are preferably three cutters 97, 98, 99 spaced such that cutter 97 is nearest a workpiece and cutter 99 is furthest from the workpiece. The differences in distance being equal to an increment of feed. The cutters are to form a groove 7. In a modification the follower units are mounted on a driven centre shaft 27 which is rotatably mounted in a fixed housing. Alternatively the follower units are mounted to be radially and rotatably mounted on a fixed housing and the workpiece and cam member are driven.