baber/WOPTO huggingface dataset:
Patent GB-1030787-A (GB)
Title: Improvements in or relating to roof structures
Inventor: REGIS THOMAS HENRY
IPC: E04D13/16
Filed: 1963-11-26
Abstract: 1,030,787. Asphalt roofing. ASPHALTIC (LONDON) Ltd. Feb. 26, 1965 [Nov. 26, 1963], No. 46685/63. Heading E1V. A method of forming a waterproof, heat insulating cover over a roof decking comprising the steps of applying a layer of expanded thermoplastic material, placing over part of its area one or more insulating boards or sheets, applying waterproofing material, such as asphalt, in a hot condition over said boards or sheets and allowing the waterproofing material to cool, moving the boards or sheets so that they cover part of the layer of thermoplastic material adjacent to that on which the waterproofing material has been laid, applying further waterproofing material in hot condition over the boards or sheets and repeating the sequence of moving the boards or sheets and applying the waterproofing material over them until the whole area has been covered. A layer of felt-like material may be placed on the boards or sheets before the waterproof material is applied thereto. The final strip of waterproof material to be applied may be a premoulded strip applied directly to the thermoplastic material. A second layer of waterproofing material may be applied in hot condition over the first layer.
Patent GB-1395037-A (GB)
Title: Bone china
IPC: C04B33/24
Filed: 1972-10-10
Abstract: 1395037 Calcium phosphate DOULTON & CO Ltd 3 Oct 1973 [10 Oct 1972] 46717/72 Heading C1A Calcium phosphate is prepared as a bone ash substitute for use in bone china manufacture by (a) mixing it with CaO or a compound which decomposes to CaO on heating; (b) calcining at at least 900‹ C. to form a sintered product with a surface area of less than 5 m<SP>2</SP>/g., and (c) grinding to 0À5-10 Á (e.s.d.). The Ca : P ratio after calcining may be 1 : 1 to 2 : 1, ground limestone may be added to the product to increase the ratio. The calcium phosphate may be preferably CaHPO 4 .2H 2 O or CaHPO 4 , Ca 2 P 2 O 7 , Ca(H 2 PO 4 ) 2  or Ca(H 2 PO 4 ) 2 .H 2 O. The CaO precursor may be CaCO 3  (e.g. limestone) or calcium oxalate. A sintering aid, e.g. Na 2 CO 3  or K 2 CO 3  and/or a fluxing agent as normally used in bone china manufacture may be incorporated in the initial mixture.
Patent GB-1049986-A (GB)
Title: Copolyamides
IPC: C08G69/26
Filed: 1965-11-04
Abstract: Discrete polyamide particles having a relative viscosity of at least 1.8 are produced by reacting a mixture of a di-phenyl or substituted phenyl iso- and/or terephthalate and a di-primary or secondary alkyl or phenyl oxalate with an equivalent quantity of an aliphatic, cycloaliphatic, or araliphatic diprimary amine in solution in an aromatic hydrocarbon solvent at 20-150 DEG  C. to form a prepolymer and heating a suspension of this prepolymer at a temperature between 170-350 DEG  C. but below the melting range of the polyamide.  Iso- and terephthalates specified are esters of phenol, cresols, xylenols and tert-butyl-phenol.  1-9 moles of isophthalate may be used per mole of terephthalate. Oxalates specified are esters of phenol or alkanols of up to 13 carbon atoms, e.g. n-butanol, methanol, 2-ethyl hexanol, tridecanol and sec-butanol.  The molar ratio of oxalate to iso- or terephthalate may be between 9:1 and 1:9.  Diamines specified are alkylene diamines of up to 12 carbon atoms, e.g. tetra-, hexa- and decamethylene diamines, bis(amino-methyl)cyclohexane and xylylene diamine. Aromatic hydrocarbon solvents specified are benzene, toluene, xylene, tetralin and diphenyl. The prepolymer may be further condensed in the same solvent, optionally at superatmospheric pressure or a higher b.p. non-solvent may be used, e.g. diethyl benzene and dodecyl benzene.  The interchange may be effected by heating the prepolymer suspension up to the higher temperature range and replacing the solvent as it distils off by an equal volume of the higher boiling liquid.  The second stage may be carried in boiling liquid.  The product may be filtered off, washed with a volatile liquid e.g. MeOH and dried under vacuum or in a tumble drier.  The product may be used to make mouldings, and extrusions and for fluidized bed coating of metals.
Patent GB-1373314-A (GB)
Title: Process for the preparation of 6-hydroxy-2-pyridone-3-carbonic acid  amides
IPC: C07D213/89
Filed: 1972-10-11
Abstract: 1373314 6 - Hydroxy - 2 - pyridone - 3- carbonic acid amides CASSELLA FARBWERKE MAINKUR AG 11 Oct 1972 [12 Oct 1971] 46877/72 Heading C2C Compounds of general formula  wherein X is selected from H, C 1-6  alkoxy, C 1-6  alkyl, C 2-6  alkenyl, C 3-8  cycloalkyl, benzyl, phenyl, pyridyl, thiazolyl, benzothiazolyl, imidazolyl, benzimidazolyl, thienyl, furyl, pyrrolyl, said C 3-8  cyclo alkyl and phenyl substituted by halogen, CN, C 1-4  alkyl or C 1-4  alkoxy, and said C 1-6  alkyl and C 2-6  alkenyl substituted by CN, OH, acetoxy, phenoxy, C 1-4  alkoxy, C 1-4  alkyl, phenylamino carbonyloxy, C 1-4  monoalkylamino or C 2-8  dialkylamino; Y is selected from amino, C 1-4  monoalkylamino, C 2-8  dialkylamino, acetylamino, benzoylamino, or any of X except C 1-6  alkoxy; R 1  and R 2  (separately) are H, C 1-6  alkyl or hydroxyalkyl, C 2-8  alkoxyalkyl, C 3-8  cycloalkyl, benzyl, phenyl, said C 3-8  cycloalkyl and phenyl substituted by halogen, CN, C 1-4  alkyl or C 1-4  alkoxy, or R 1  and R 2  together are a C 2-5  alkylene bridge optionally interrupted by O, S or NH, are prepared by condensing at 0-100‹ C. in the presence of an alkaline condensing agent a compound ZO.COCH 2 .COA with a compound HYN.COCH 2 .COB wherein Z is C 1-4  alkyl, A and B are different and are selected from -NR 1 R 2  and X and Y.
Patent GB-1364860-A (GB)
Title: Two passenger tricylcle
IPC: B62K5/02
Filed: 1971-10-08
Abstract: 1364860 Tricycles C E LONG 8 Oct 1971 46911/71 Heading B7E A two-passenger tricycle comprises a central frame member 10 supporting via a forked part 102 transverse members 84, 86 carrying axles supporting wheels 20, 22, wheel 22 being drivable via a chain 76 and change-speed gearing 78 by a pedal-operated crank 44 carrying a chain wheel 74 and rotatably mounted on a frame member 42 depending from member 10 which latter has a mounting 44 for a steerable front wheel 12. A transverse member 126 also fixed to member 10 carries at opposite ends frame members 128, 130 which support pedal cranks 62, 64 and handlebars 28, 30, only the latter having a connection 130 to the steerable wheel and brake-operating levers 146, 148 for rear-wheel brakes 154, 156, respectively. Members 84, 86 support saddle bearers 176, 178 on which saddles 24, 26 are adjustable fore-and-aft by detents operated by levers 186. The saddles have raised backs 188, 190 enabling the riders to apply horizontal thrust on the pedals. A console 166 on member 10 carries levers 168, 170 for operating the front brake and the change-speed gear, respectively. Lamp 202 may be mounted either as shown or on the front end face of member 10. It is stated that the central frame arrangement provides easy access for the riders to the saddles and pedals. The rear brakes are mounted on frame extensions 154 which carry rubber buffers on which the tricycle may be stored in a vertical position. The tricycle may have a motor driving wheel 20.
Patent GB-1410236-A (GB)
Title: Procedure for obtaining ampicillin
IPC: C07D499/68
Filed: 1972-10-11
Abstract: 1410236 Ampicillin GALENIKA PHARMACEUTICAL & CHEMICAL INDUSTRY 11 Oct 1972 [17 April 1972] 46912/72 Heading C2C Ampicillin, especially ampicillin trihydrate, is prepared by treating a protected imino ether of benzylpenicillin of the formula wherein R 1  is an alkyl group and R 2 , which protects the carboxyl group, is a readily hydrolysable group such as the residue of an aliphatic or aromatic carboxylic or dicarboxylic acid, or of an aromatic sulphonic acid (e.g. propionic, acetic butyric, valeric, benzoic, succinic and p-toluenesulphonic acid residues); in two successive steps with (a) water and (b) phenylglycine chloride hydrochloride, the treatment (b) being carried out in the presence of an organic solvent.
Patent GB-1128191-A (GB)
Title: Cutting apparatus
IPC: A21C5/00
Filed: 1965-11-05
Abstract: 1,128,191. Sheet-cutting apparatus; doughcutting. GENERAL MILLS, Inc. 5 Nov., 1965 [16 Nov., 1964], No. 47091/65. Heading B5A. Sheet material is cut (e.g. dough is cut into biscuits) using apparatus comprising two cutting members each having cutting edges thereon, corresponding portions on each member matching, proximate portions of cutting edges defining recesses therebetween, the members being movable toward and away from one another so as to cut the material, and the bases of the recesses being slanting, e.g. at 30 degrees from the surface defined by the cutting edges so that the pieces cut from the sheet project at one end from the recess to enable easy removal. The cutting-members are preferably counter-rotating cylinders 20, 18, Fig. 1 having recesses formed by circumferential, parallel, evenly-spaced cutting edges 22 and transverse, parallel, evenly-spaced cutting-edges 24. As shown in Fig. 6, the cavities formed by two recesses in the cutting position are of rhomboid section, the bases 44 slanting in opposite directions. The dough pieces 50 are shown, Fig. 6, projecting from one of the recesses, from which they may be removed on further rotation of the cylinders by helical brushes 52, 54, Fig. 1, which sweep transversely of the circumferential cutting- edges in the same direction as the bases of the recesses slant downwards. The apparatus may be used to make multi-layered pieces sealed about their peripheries having an internal cavity, from a plurality of sheets of material fed between the cylinders.
Patent GB-1157945-A (GB)
Title: Linear Elastic Polymer
IPC: C08G71/00
Filed: 1967-10-18
Abstract: 1,157,945. Elastomeric polymers. J. R. GEIGY A.G. 18 Oct., 1967 [19 Oct., 1966], No. 47472/67. Heading C3R. Polymers are prepared by first condensing a bis-hydrazide: H 2 N.NH.A.NH.NH 2  (I), where A is a divalent acyl radical of a polybasic carboxylic acid which may contain aliphatic, carbocyclic or heterocyclic substituents, with a bisacid halide: Hal.CO(O) r X(O) r CO.Hal (II) in which Hal represents a halogen atom, X is a divalent linear aliphatic hydrocarbon radical which is a residue of a compound: H(O) r X(O) r H which has M.W. 400-5000 and m.p. <70 C. ; X may be interrupted by O, S and CO.O radicals but every two interrupting members are separated from each other by at least two chain carbon atoms; r is 0 or 1. I and II are reacted at a molar ratio from 3:1 to 1À2:1 at - 20 to 100 C. The resultant intermediate condensate has the formula where n is a whole or fractional number having an average value between 0À5 and 5. This is subsequently reacted with a chain extender which may be a bifunction acyl halide Y(COCl) 2  or anhydride Y(CO.OCO) or a diisocyanate: R(NCO) 2 . Y may be: (a) a straight-chain alkylene radical containing up to 12 carbon atoms, a C 5-8  cycloalkylene radical, phenylene, diphenylene, naphthylene, phenylene-E-phenylene where E is O, S, SO 2 , an alkylidene radical containing up to 8 carbon atoms, cycloalkylidine of 5 to 7 carbon atoms; the carbon atoms of the above may be substituted by C 1-6  alkyl radicals or by F, Cl or COOH; (b) -O-R<SP>1</SP>-O- where R<SP>1</SP> is a C 2-12  alkylene radical or methylenecyclohexylene-methylene; (c) 1,4-piperazinediyl; or (d) -NH-R-NH- where R is C 2-12  alkylene, α,α<SP>1</SP>-xylylene, C 1-6  alkyl-α,α<SP>1</SP>-xylylene, halogeno-α,α<SP>1</SP>-xylylene (halogeno = F or Cl), cyclohexylene or methylene - cyclohexylenemethylene. The resultant polymer has the general formula in which Z is -CO.(O) r .X(O) r CO- (III) and -CO.Y.CO -(IV). The polymer contains from 0À5 to 5 radicals III per radical IV, which are statistically distributed over the whole polymer. In preferred and exemplified polymers A is a radical: in which Q is H, OH, C 1-6  alkoxy, C 1-6  alkyl, C 5-8  cycloalkyl, phenyl which may be substituted by C 1-6  alkyl, alkoxy radicals or by F, Cl, Br or COOH or a grouping M 1  and M 2  independently represent H, C 1-8  alkyl radicals, benzyl, phenyl, C 3-12  alkenyl, cyclohexyl or N,N-di (C 1-6  alkyl)-amino-C 1-6  alkyl or taken together form a heterocyclic ring with the N atom. In an example (1) the bischloroformate of polytetramethylene glycol is first reacted with 2,4-dihydrazino-6-dipropylamino-s-triazine in solution in hexamethyl phosphoric acid triamide. After reacting for ¢ hour the mixture is cooled to 5-10 C. and the prepolymer chain extended with adipic acid dichloride. An elastomer is obtained on precipitating the mixture in water. In other examples similar prepolymers are reacted with diisocyanates, e.g. hexamethylene diisocyanate.
Patent GB-1529469-A (GB)
Title: Acyl derivatives of 4-amino thiazoles and pharmaceutical compositions containing them
IPC: C07D277/46
Filed: 1977-02-15
Abstract: 1529469 Acyl derivatives of thiazole-4-amines JOHN WYETH & BRO Ltd 15 Feb 1977 [18 Nov 1975 28 May 1976 4 Nov 1976] 47480/75 22478/76 and 34641/77 Heading C2C [Also in Division A5] Novel compounds Ia in which Hal is Cl or Br, R is perfluoro C 1-5  alkyl, C 1-5  alkyl (substituted one or more times by CF 3 , MeO, EtO, NH 2 , C 1-6  alkylamino, di- C 1-6  alkylamino, OH or CN or by two or more Cl or Br atoms) C 2-5  alkenyl, C 2-5  alkynyl or cyclopropyl, R<SP>1</SP> is H or C 1-6  alkyl and R<SP>3</SP> is H or COR<SP>4</SP> (where R<SP>4</SP> is as defined for R with R and R<SP>4</SP> being the same or different or R<SP>4</SP> is C 1-5  alkyl or C 4-5  cycloalkyl) are prepared by acylating a compound II to form a compound Ia (R<SP>3</SP> = H) and if desired further acylating this compound to introduce an R<SP>4</SP>CO- group. Compound Ia (Hal = Br, R=NH 2 CH 2 ; R<SP>1</SP>=H) is also prepared by hydrogenolysis of the corresponding 4-phthalimido acetamido compound. Compounds of Formula Ia where R is C 1-5  alkyl or C 4-5  cycloalkyl and R 3  is H are also prepared. 2-Chloro thiazole-4-carbonylazide is prepared by treating the corresponding hydrazine with NaNO 2 . 4-(2-phthalimido acetamido)-2- bromo-thiazole is prepared by amidation of 2- bromo-thiazole-4-amine.
Patent GB-967941-A (GB)
Title: Power plant comprising a vapour turbine
IPC: F01K3/22
Filed: 1962-12-18
Abstract: 967,941. Regulating steam temperature in boilers. COMBUSTION ENGINEERING Inc. Dec. 18, 1962 [Dec. 27, 1961], No. 47690/62. Heading F4A. [Also in Division F1] A power plant having a vapour generator which supplies superheated vapour to a turbine (see Division F1), comprises a throttling means operative to control delivery of vapour to the turbine and means for imparting heat to the vapour downstream of the throttling means to maintain the temperature of the vapour delivered to the turbine at a predetermined value. A furnace 10 lined with generating tubes 16 supplied with water through a downcomer 30 is fired by burners 12, the gases discharging through a lateral pass having secondary superheater sections 20, 22, 24 and leading to a down pass having a reheater 26 and a primary superheater 18. A throttle valve 46 for controlling the flow of steam to a highpressure turbine 40 is controlled in accordance with the turbine load by means of a governor 50. The fall in temperature of the throttled steam is counteracted by the subsequent superheater units 22, 24. A direct contact or indirect desuperheater 56 is controlled i n accordance with the temperature of the superheated steam in the delivery line 36 to the highpressure turbine 40. The desuperheater may be replaced by a separately fired heater or it may be omitted, in which case the steam temperature is controlled by the firing rate in the furnace 10. The pressure in the generator may be controlled by regulation of the feed of the primary fluid and/or the firing rate.
Patent GB-1488986-A (GB)
Title: Recording device for electrographic recording
IPC: B41J25/00
Filed: 1975-11-20
Abstract: 1488986 Selective printing KIENZLE APPARATE GmbH 20 Nov 1975 [6 Dec 1974] 47779/75 Heading B6F A printer comprises recording styli 6 carried on resilient means 4 fixed to rigid conductive supports 2, the supports being coupled to a reciprocating driving member 37, and being mounted in an insulating carrier, each support 2 including a connector pin 21 for electrical supply to the stylus 6 carried thereby. The styli record on metal paper by burning away a surface layer. The supports 2 are held in trapezoidal grooves in the carrier by springs 29, the supports being rockable, by the driving member 37 through pins 42 thereon, on a bottom edge 43, 44 of the support 2.
Patent GB-1286498-A (GB)
Title: Polymeric film having an adhesive coating
Inventor: GORTON BERT SORELLE
IPC: C09J131/04
Filed: 1969-10-01
Abstract: 1286498 Heat sealable coated polymeric films E I DU PONT DE NEMOURS & CO 1 Oct 1969 [1 Oct 1968] 48333/69 Heading B2E [Also in Divisions B5 and C3] A structure comprises a polymeric film having as a heat sealable laminatable coating on a surface thereof an adhesive comprising a vinyl acetate/ethylene copolymer containing a minor amount of functional groups selected from iminated carboxylic acid groups or N- methylol amide groups, the copolymer containing 5-35% by weight of copolymerised ethylene and having an inherent viscosity (measured in a 0.5% solution in acetone or 99:1 mg weight acetone/water mixture) of 0.5-2 dl/g, the coating consisting essentially of coalesced dispersed particles. 'Minor amount' means either 2.5 to 6 weight percent of N-methylol amide or an amount provided by imination of a copolymer having an initial carboxylic acid group content of 0.5 to 2 weight percent. In the Examples polyvinyl chloride films are coated.
Patent GB-1362803-A (GB)
Title: Method and device for preparing thin films of metals or metal comp ounds
IPC: G03F1/54
Filed: 1971-10-18
Abstract: 1362803 Coating; coating apparatus COMMISSARIAT A L'ENERGIE ATOMIQUE 18 Oct 1971 [23 Oct 1970] 48384/71 Headings B2E and B2L [Also in Divisions Cl and C7] Thin films of a metal or metal compound are deposited on a heated substrate from a mist of a solution which forms the material to be deposited, the mist being transported towards the substrate by a carrier gas, and the solution being atomised by ultrasonic waves. The atomised solution may be fed from the aerosol generator into a deposition chamber containing a stationary or moving substrate, using a rotating or reciprocting nozzle. The gas may be inert, e.g. Ar, or may be oxidising if oxide films are to be produced. Further gas may be introduced between the generator and the deposition chamber. The film may be of Fe 2 O 3  (formed from aqueous FeCl 3  solutions or organic solution of organic ferric salts), garnets, sulphides, Al, Ni, Cr, Co, Pt, Pd, Os or Ir.
Patent GB-995104-A (GB)
Title: Improvements in or relating to the manufacture of semiconductors
IPC: H01L21/3063
Filed: 1962-12-21
Abstract: <PICT:0995104/C6-C7/1> Semi-conductor materials are etched to provide smooth bottomed pits by (1) forming an insulating layer of oxide on the surface, e.g. by heating at 1200  DEG C. in an atmosphere of water vapour, (2) masking with an acid resisting coating and forming windows therein exposing the oxide layer, and (3) placing the surface in contact with a moving wettable member soaked in an electrolyte and passing a current there-through which removes the oxide layer and electro-polishes a smooth surface.  The formation of the oxide layer on a silicon wafer requires up to 2 hours, after which a wax resist or preferably a photosensitive resist is applied, and after forming the desired pattern excess is removed, and then etched and polished to form a pit up to 120m  deep.  A suitable apparatus for the final stage comprises a rotating member 22 on which the masked wafers are supported and connected to the positive terminal, and are pressed against a lapping wheel 13 which carries a disc of absorbent, e.g. hemp fabric or parchment paper maintained wet with a weak electrolyte dripping from a reservoir 17.  A suitable electrolyte consists of aqueous glycerin containing 1% of ammonium bifluoride.  In the case of n-type material electro-polishing is assisted by light focussed on the area from a lamp.
Patent GB-1133345-A (GB)
Title: An improved testing system for trunk telephone networks
IPC: H04M3/32
Filed: 1965-11-16
Abstract: 1,133,345. Automatic exchange systems. NIPPON ELECTRIC CO. Ltd. 16 Nov., 1965 [16 Nov., 1964], No. 48647/65. Heading H4K. In an exchange system comprising exchanges in tandem a main exchange controls the testing of trunks between two distant exchanges. As shown in Fig. 2, exchanges XA, XB, XC are connected by groups of m trunks 1, and 2, trunk group 3 connecting XC to a further exchange XD, not shown. Exchange XA is a main exchange with test equipment OTSA having a test control circuit CONTA and a trunk group connector CONA. The exchanges XB and XC have auxiliary test equipment RTSB, RTSC, similarly constituted; the trunk connector CONC not being shown. The auxiliary test equipments RTSB, RTSC are terminated on their respective exchange networks in the same manner as local subscribers. To test links between exchanges XB and XC, the main test equipment OTSA seizes a trunk from group 1 either by way of trunk group connector CONA, or (as shown in dotted lines) by working over the main exchange network XA, and by sending the appropriate digits obtains a connection over exchange XB to the auxiliary test equipment RTSB. A code signal is now sent to RTSB which directs the connection of a particular trunk in group 2 by setting connector CONB. The selected trunk is the trunk to be tested, but it is first employed to send digits to exchange XC so as to obtain a connection to the auxiliary test equipment RTSC. When connected the equipment RTSC reverts a ready-to-proceed signal and co-operates with test equipment RTSB to test the trunk for transmission quality and/or noise level; the main test equipment OTSA receiving and recording the results of the test.
Patent GB-1478130-A (GB)
Title: Photographic printer
IPC: G02B27/10
Filed: 1973-10-18
Abstract: 1478130 Television and facsimile systems KODAK Ltd 17 Oct 1974 [18 Oct 1973] 48658/73 Heading H4F A continuously moving photosensitive web 50 is exposed to at least two partially collapsed image modulated rasters 40, 42, 44 which are projected in register on to the web by an optical system 46, the direction of collapse being the web movement direction and the amount of collapse being just compensated for by the web speed. In the embodiment shown a colour negative 16 is suitably illuminated by a scanning raster 12 from which red, green and blue electrical signals are derived using dichroic mirrors 20, 22, 24 and corresponding photomultipliers 26, 28, 30. The signals 32, 34, 36 applied to a C.R.T. 38 result in, respectively, red, green and blue partially collapsed rasters 40, 42, 44 on its face 60 which are recombined at 110 in Fig. 3 through an optical system 46 comprising frontsurface mirrors 82, 84, 86, 88 glass plates 90, 92, 94 and dichroic reflectors 96, 98 arranged so that the path lengths from the rasters to the printing lens 48 are equal. In another embodiment (Fig. 4, not shown) only prisms are used in the optical system (461). Multiple exposures may be derived from the signals 32, 34, 36. The rasters 40, 42, 44 may also be derived from a photographic positive, a T.V. camera, a video tape recording or broadcast T.V. signals. Strips of positives or negatives arranged for sequential presentation may also be used, the positive or negative being stationary during scanning. By incorporating a beam splitting system and shutter (Fig. 5, not shown) T.V. signals having two interlaced fields per frame can be correctly exposed on to the moving web 50. The rasters 40, 42, 44 need not be formed simultaneously.