baber/WOPTO huggingface dataset:
Patent GB-1161332-A (GB)
Title: Method and Apparatus for the Detection of Boiling in Liquids
Inventor: GRASS GUNTHER
IPC: G21C17/038
Filed: 1966-10-31
Abstract: 1,161,332. Detecting boiling. EUROPEAN ATOMIC ENERGY COMMUNITY. Oct. 31, 1966 [Nov. 5, 1965], No.48650/66. Heading G1N. Apparatus for detecting boiling in a liquid comprises a pressure-sensitive transducer in the liquid producing electrical signals when subjected to the pressure changes associated with the formation and/or condensation of vapour bubbles. The transducer comprises a parabolic reflector 20 Fig. 4 centrally welded to the lower of two flanges 17, 18 about a diaphragm 16 associated with a Piezo-electric or Piezo-resistive element 15. A number of transducers may be distributed across the liquid peripherally with respect to the boiling zone.
Patent GB-1299908-A (GB)
Title: Composition and method for combating pests
IPC: A01N/
Filed: 1970-10-15
Abstract: 1299908 Pesticidal application of a furan-2- one derivative MERCK PATENT GmbH 15 Oct 1970 [27 Dec 1969] 49036/70 Heading A5E 3-cyano-4-phenyl-5-dimethylaminomethylene- 5H-furan-2-one finds application in compositions and methods for combating undesired plants and algae. Other specified active ingredients which may be present are sodium trichloroacetate, sodium 2,2-dichloropropionate and 2-ethylhexyl-2,4- dichlorophenoxy acetate.
Patent GB-1081930-A (GB)
Title: Preparation of steroid butenolides
IPC: C07C39/18
Filed: 1964-12-02
Abstract: Compounds of formula <FORM:1081930/C2/1> wherein R1 is a hydrogen atom or a C1- 10 alkyl or acyl group are prepared by treatment of a compound of formula <FORM:1081930/C2/2> wherein R1 is a C1- 10 alkyl or acyl radical with bromine or a source of molecular bromine in thionyl chloride followed if desired by hydrolysis or alcoholysis, to form a corresponding 22-bromo - acid, acid halide or acid C1- 10 alkyl ester, treating this with sodium t-butoxide in t-butanol in the presence of sodium or potassium iodide to form the corresponding D 22-acid, acid halide or ester, and reacting this with selenium dioxide in an acidic medium to form the desired lactone, followed if desired by hydrolysis of the 3-ether or ester.
Patent GB-495080-A (GB)
IPC: E04C1/40
Abstract: 495,080. Moulding artificial stone blocks. TAYLOR, A. B. May 6, 1937, Nos. 13017 and 23693. [Classes 22 and 87 (ii)] [Also in Group X] Building on paving blocks comprising cementitious material and pieces of stone, slate or shale 3 are made by dividing, by means of a saw or wedge 2, a block formed by packing the stone &c. in a mould and filling in with cementitious material. The block may have a peripheral groove 5 and the line of division may be easily cut material. The stone near the line of division or the cementitious material may be coloured.
Patent GB-1354085-A (GB)
Title: Piston for combustion engines
IPC: F02F3/00
Filed: 1972-10-26
Abstract: 1354085 Pistons MAHLE GmbH 26 Oct 1972 [5 Nov 1971] 49516/72 Heading F2T A piston for an I.C. engine comprises a sleeve 3 attached to a main portion 2, the sleeve 3 being detachable by friction against the cylinder if jamming occurs. Attachment may be by soft soldering, Fig. 1 (not shown), the solder being fusible by frictional heating, or shear pins (5), Fig. 2 (not shown), may be breakable to release the sleeve 3. Also, Fig. 3, a shearable flange 7 may be bolted to the portion 2, or, Fig. 4 (not shown), a sleeve 3 of resilient material, e.g. steel, may have a corrugation (11) for engaging a recess in the portion 2.
Patent GB-1133357-A (GB)
Title: Method and apparatus for performing reactions
IPC: B29C48/03
Filed: 1966-11-04
Abstract: 1,133,357. Controlling catalytic reactions. UNIROYAL Inc. 4 Nov., 1966 [17 Nov., 1965], No. 49540/66. Headings B1F and B1X. [Also in Division C3] A reactor comprises a heat conductive surface on to one side of which is formed a catalyst layer, means for circulating a heat exchange fluid in contact with the other side of the surface, feed means for passing a reactant into contact with the catalyst layer and means for scraping a formed product from the catalyst layer and for removing such product from the reaction area. In Fig. 1. reactor I has a jacket 2. Concentric within the reactor is hollow shaft 5 which has scraper 6 dispoised longitudinally on its outer surface. Helical screw 7 is driven by shaft 8. Shaft 9 rotates shaft 5. Catalyst layer 13 may be 0.2 to 5 mm. thick and consists e.g. of an alkali or alkaline earth metal, an alkali metal hydride, AlCl 3 , SnCl 4 , TiCl 4 , NaOH, KOH, CaO or FeCl 3 . The catalyst may be imbedded in an inert matrix. Inlets 14 are for the introduction of reactants, outlet 15 is for product removal and slot 16 is adapted to receive the product.
Patent GB-1560129-A (GB)
Title: Process for the preparation of 1 - nitroanthraquinone
Filed: 1977-11-29
Abstract: 1-Nitroanthraquinone is prepared by nitrating anthraquinone, treating the nitration mixure with organic solvents and then rectifying it. A nitroanthraquinone mixture containing at least 60 % of 1-nitroanthraquinone and less than 10 % of anthraquinone is treated with 0.8 to 3 parts by weight of nitrobenzene and/or recycled wash filtrate from step d) and/or mother liquor from step c) at a temperature of 130 to 170 DEG C. The solution obtained in step a) is then cooled, in step b), to 100-20 DEG C. In the subsequent step c) the nitroanthraquinone mixture which precipitates is filtered off and in step d) the filtration residue obtained after step c) is treated with 0.3 to 1.5 parts by weight of nitrobenzene per part by weight of the nitroanthraquinone mixture employed in step a) at from room temperature to 100 DEG C, filtered off and dried. In the last step, the nitroanthraquinone mixture obtained after step d) is fused at a temperature of 240 to 270 DEG C and then rectified under reduced pressure. The 1-nitroanthraquinone obtained may be used to prepare anthraquinone dyes.
Patent GB-1132445-A (GB)
Title: Production of dichloroethane
IPC: C07C5/48
Filed: 1965-11-23
Abstract: 1,132,445. Chloroethanes; vinyl chloride. MONSANTO CO. 23 Nov., 1965 [24 Nov., 1964], No. 49687/65. Addition to 1,097,884. Heading C2C. Dichloroethane is prepared by reacting ethane with HCl and O 2  in a first reaction zone in contact with a catalyst selected from siliceous materials not containing any metal chloride, activated alumina, manganous chloride supported on activated alumina, calcium chloride supported on activated alumina and lithium chloride supported on activated alumina, at elevated temperature to produce a gaseous reaction mixture of which the reactive ingredients consist predominantly of ethylene and HCl, and passing the said gaseous reaction mixture, without separation, together with O 2  into a second reaction zone in contact with an oxychlorination catalyst to effect oxidative chlorination of the ethylene therein to dichloroethane. Ethyl chloride and vinyl chloride are present in the effluent from the first reaction zone and ethyl chloride and trichloroethane are present in the effluent from the second reaction zone.
Patent GB-1344662-A (GB)
Title: Polyurethane resins in admixture with polyepoxides
IPC: C08L63/00
Filed: 1971-10-26
Abstract: 1344662 Epoxy resin and polyurethane compositions CIBA-GEIGY AG 26 Oct 1971 [27 Oct 1970] 49805/71 Headings C3B and C3R A composition comprises a polyurethane (I) containing free COOH groups and a polyepoxide (II). I may be prepared by reacting a diisocyanate with an acid polyol, e.g. of formula R<SP>1</SP>-C(CH 2 OH) 2 COOH (R<SP>1</SP> 'is H, C 1-20  alkyl or CH 2 OH). In examples 2,2-di(hydroxymethyl) propionic acid is reacted with tolylene diisocyanate. I may be a diglycidyl ether of bisphenol A or a cycloaliphatic epoxy resin. From 0À1-5 equivalents of I (based on COOH) may be used per epoxide equivalent of II. Conventional epoxy resin curing agents and accelerators may also be present. Uses.-Coatings, adhesives and laminates.
Patent GB-501851-A (GB)
Abstract: 501,851. Calculating - apparatus. PRINGLE, W. C. Oct. 7, 1937, No. 27254. [Class 106 (i)] A tabular device for ascertaining any term of a series of terms having a common increment, particularly for calculating hire purchase terms for different periods and different monthly payments, comprises a cylinder 2, Fig. 1, mounted for rotation in a casing 1 and bearing a chart with horizontal rows of amounts due each month for a given instalment rate the amount of which is indicated at one or both ends of the row. One row of indications as shown in Fig. 3, is visible through a slot 6a in an inclined portion of the casing. Beneath the slot, which is covered by a window plate, is formed an undercut groove for the reception of a sliding member 7 marked with month indications for a four year period. Between the slide and window is formed, a T-groove in which are slidably arranged pointers or cursors 9, 9a. The device may also be used as a wages reckoner; amounts corresponding to half hour increments at particular hourly wages rates are arranged in the rows on the cylinder, the scale divisions on the slide representing half hours.
Patent GB-1119077-A (GB)
Title: Improvements in or relating to methods of testing liquid mixtures
IPC: G01N21/21
Filed: 1965-11-29
Abstract: 1,119,077. Determining homogeneity. GENERAL ELECTRIC CO. Nov.29, 1965 [Dec. 7, 1964], No. 50621/65. Heading G1S. [Also in Division G2] In the manufacture of plastics it is found that if the liquid reactants are not efficiently mixed, and the resulting product is consequently not suitable for certain applications, striations are visible when the material is exposed in an unstressed state to polarized light. Such inspection may be performed on the finished product (32), Fig. 3 (not shown) by placing a light source (36) and polarizer (33) behind it and an analyser (34) in front of it. Alternatively as shown, Fig. 4, liquid resin passing through pipe 44 and valve 42 and liquid hardener through pipe 46 and valve 43 are fed to a chamber 47 with mixer 48 from whence they pass through a detection chamber 51 having a lamp 54, polarizer 56, and window 52, on one side and a window 53 and analyzer 57 on the other side. If the desired product is not birefringent, apparatus as in Fig. 4 may be used, with reactants such as polyurethane resin and hardener to match the viscosities and relative quantities of the desired liquid components and valves 42, 43, adjusted until it is seen that efficient mixing is produced. Then the desired liquid components are substituted.
Patent GB-507083-A (GB)
Abstract: 507,083. Catalytic ignition devices. GAS LIGHT & COKE CO., PRIGG, J. A., and VOICE, E. W. Jan. 13, 1938, No. 1197. [Class 75 (iii)] In a catalytic ignition device for gas burners in which an air-gas mixture is supplied to and ignited by a catalyst disposed within a housing, the resultant flame being used to ignite the burner, there is provided in the neighbourhood of the catalyst a substance, e.g. lead peroxide or lime, which removes oxides of sulphur from air or gases coming into contact with the catalyst, and preferably also a moisture absorbing material; such as silica gel or alumina gel, to protect the catalyst from poisoning. As shown, the catalyst 1 of an ignition device 3, as described in Specification 499,418, is suspended in a detachable part 2 lined with a paste 4 consisting of four parts by weight of lead peroxide to one part of cement. In other forms, the sulphur oxide removing substance may be in the form of pellets in a wire net carrier, surrounding the catalyst or suspended in the vicinity thereof, or may bo inserted in a recess in the wall of the catalyst chamber, an opening with a cover plate or removable plug giving access to the recess from the outside. The sulphur oxide removing substance may be contained in, e.g. of, the silica or alumina gel. Specification 471,974 also is referred to in the Provisional Specification.
Patent GB-1132577-A (GB)
Title: Multistable switch for the equally frequent allocation of a plurality of similar devices, particularly for telecommunication installations
IPC: H03K19/00
Filed: 1965-12-01
Abstract: 1,132,577. Automatic exchange systems. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 1 Dec., 1965 [1 Dec., 1964], No. 50974/65. Heading H4K. In an arrangement for allotting similar devices, the allotting circuits are grouped in pairs and are controlled by AND gates U1, U2 . . ., U1<SP>1</SP>, U2<SP>1</SP> . . . and inhibiting gates N1, N2 . . . in such a way that each circuit of a pair becomes effective before any other circuit is unblocked, the group blocking circuits including delay networks T1, T2 . . . having different time constants, so that the groups come into action in a random manner.
Patent GB-1078728-A (GB)
Title: Process for the manufacture of biaxially stretched polyethylene films
IPC: B29C48/10
Filed: 1964-12-16
Abstract: 1,078,728. Biaxially stretched polyethylene film. KALLE A.G. Dec. 16, 1964 [Dec. 19, 1963], No. 51198/64. Heading B5B. Biaxially stretched polyethylene film is made by extruding high-pressure polyethylene having a density less than 0.92 g./cm.<SP>3</SP>, a melt index of 0.2 to 0.4 g./10 min. measured at 190 C. and a reduced viscosity value (RSV) of 1.3 to 1.6, processing the extruded polyethylene into a primary film by the tube blowing process, and stretching the primary film in two perpendicular directions. The polyethylene is extruded at a temperature not higher than 90 C. above its melting point, the melt leaving the annular nozzle is cooled and simultaneously formed into a tubular film at an inflation ratio of 2.2 to 2.6 and a longitudinal stretching ratio of 1.5 to 1.9, the tube is cut into a flat film, the flat film is stretched in two perpendicular directions, each stretch ratio being from 2 to 4, at a temperature between the crystallite melting point of the polyethylene and a temperature not more than 50 C. below the crystallite melting point, and the stretched film is cooled under tension to a temperature below 40 C. The polyethylene preferably is extruded at a temperature of from 150 C. to 200 C. The flat film may be stretched in the two perpendicular directions either simultaneously or sequentially. For sequential stretching, the flat film may first be stretched longitudinally, the longitudinally stretched film being cooled to a temperature below 40 C. under tension, reheated to a temperature not more than 50 C. below the crystallite melting point of the polyethylene, stretched transversely at this temperature, and again cooled to a temperature below 40 C. under tension; the transverse stretching temperature may be up to 5 C. above the longitudinal stretching temperature. The sequence of the longitudinal and transverse stretching stages may be reversed.
Patent GB-1367013-A (GB)
Title: Hollow-charge explosive device adapted for underwater operation
IPC: F42B1/02
Filed: 1972-11-08
Abstract: 1367013 Hollow-charge for cutting metals SOC NATIONALE DES POUDRES ET EXPLOSIFS 8 Nov 1972 [10 Nov 1971] 51484/72 Heading F3A A flexible hollow-charge, detonating fuse for cutting metals under water at depths up to 100 m., comprises a casing 1 of lead or leadantimony alloy, a passage 2 containing an explosive charge 11, and a gas-filled passage 3. The gas in passage 3 may be pressurized to prevent the fuse being crushed by hydrostatic pressure. The passage 3 is closed by plastics end plugs (6), Figs. 4 and 5 (not shown) which carry a socket (7) for receiving a detonator.
Patent GB-1183102-A (GB)
Title: Improvements in Oil Burner Apparatus
Inventor: JNR TIMOTHY YOUNGLOVE HEWLETT
IPC: F23D11/00
Filed: 1967-02-06
Abstract: 1,183,102. Separating oil droplets from gas. T. Y. HEWLETT. 6 Feb., 1967, No.51715/69. Divided out of 1183101. Heading BIT. [Also in Divisions Fl and F4] An oil separator associated with an aspirating type burner assembly (see Division F4) and a rotary sliding vane compressor (see Division F1 in burner apparatus for domestic or commercial use, comprises an inner housing 54, Fig. 9, to which oil and air from the compressor is admitted through a pipe 21 and an outer housing 53 having an outlet 16 at its upper end through which compressed air passes to the burner and an outlet 52 at its lower end through which separated oil is returned to the oil reservoir of the compressor. The domed top of the inner housing reverses the flow direction of the air with the entrained oil, the air passes through radial ports 56 and a filter 58. Any oil that should pass through the ports 56 collects at the bottom of the separator between the housing and passes through ports 57.
Patent GB-1083327-A (GB)
Title: Improvements in closure assemblies and bolt mechanisms
IPC: E05C3/04
Filed: 1964-12-22
Abstract: 1,083,327. Bolt fastenings. AERPAT A.G. Dec. 22, 1964 [Dec. 30, 1963], No. 51964/64. Heading E2A. An assembly comprises a frame member B, a closure member hinged to the frame member in fixed relationship, the closure member being plate-like and having an elongated slot therethrough, a bracket 8 having flanges extending along the back side of the closure member and secured thereto, the bracket having an open central area between the flanges registering with the solt, a bolt 1 mounted for pivoting movement on the bracket, the bolt having an end portion 1a located beyond the back side of the closure member and positioned to engage the frame member when the bolt is in the fastening position, the bolt also having a longer arm 1b extending through the slot in the unfastening position of the bolt and forming an operating lever for the bolt, the lever being located within the slot with its outer surface substantially flush with the outer face of the closure member when the bolt is in fastening position, a trigger member 2 carried by the bracket and having an actuator portion 2a located in an end portion of the slot adjacent the free end of the lever the exposed surface of the actuator portion being substantially flush with the outer face of the closure member, means carried by the bracket, supporting the trigger member for sliding movement towards and away from the end of the lever parallel with the outer surface of the closure member, a wall 25a on the bolt lever engaged by the trigger member to hold the lever in fastening position spring means 5 normally urging the trigger member into fastening engagement with the lever and spring means 9 supported by the bracket and engaging the bolt and urging it for rotation about its pivot to a position to release the closure member when the trigger member is retracted from the wall.
Patent GB-1148547-A (GB)
Title: Combined speech window and hatch assembly
Inventor: BOURLIER ANDRE
IPC: E05G7/00
Filed: 1967-11-16
Abstract: 1,148,547. Combined speaking window and delivery hatch. A. BOURLIER and C. P. A. BOURLIER. 16 Nov., 1967 [8 Dec., 1966], No. 52163/67. Heading E1J. A combined assembly of speaking window and delivery hatch comprises an air-impervious diaphragm 11 unaffected by heat and moisture e.g. of polyvinyl chloride stretched on a metal-' frame 2 to transmit frequencies of the human voice, sandwiched between two transparent screens 1, 3 forming a box resonant at speech frequencies and provided with openings 12 which transmit sound waves and a pivoted shutter 8 e.g. of polymethyl methacrylate, capable of opening through an obtuse angle with respect to the screen frame 1, and having pivots adjustable vertically to enable the shutter to close the gap 4 between the bottom rail of the frame 1 and the counter on which the assembly stands. The frame 3 is mounted on the frame 1 with the screen 2 therebetween by clips 16 fixed on the frame 1 engaging in peripheral recesses 14, 15 in the frame 3. The openings 12 are formed by glass strips 5 obliquely set with respect to the frames 1 and 3 respectively, one either side of a middle glass strip 6 parallel to the frame. The shutter 8 may be held in any position by braking devices (PVC shoes 20 1 , 21 1  and 20 2  and 21 2  Fig. 2 not shown) applied against metal side sectors 7 1 , 7 2  on the frame 1. Stops 9, 9 1  enable the shutter to be locked in its closed position flat against the frame 1.
Patent GB-1469766-A (GB)
IPC: C04B33/02
Filed: 1974-11-08
Abstract: 1469766 Treating ceramic compositions ENGLISH CLAYS LOVERING POCHIN & CO Ltd 8 Nov 1974 [9 Nov 1973] 52226/73 Heading C1J A white-firing ceramic composition is produced by forming a slurry of a refractory material and a flux therefor in water and subjecting the slurry to a non-homogeneous magnetic field having an average field intensity of 10,000 gauss to separate paramagnetic particles. Suitable refractory materials are kaolin, ball clay, quartz sand, alumina, zirconia and magnesite and suitable fluxes are felspar, soda, potash, fluorspar, borax, mica, lead bisilicate, calcium carbonate and nepheline syenite. The compositions can be used for making soft porcelain, vitreous sanitary ware, earthenware or as glazing compositions.
Patent GB-1144683-A (GB)
Title: Improvements in or relating to methods of and devices for the continuous dry fractionation of pulverulent products
IPC: B07B7/08
Filed: 1966-11-23
Abstract: 1,144,683. Centrifugal separators. SOC. ARIA-SOC. D'ANALYSES ET DE RECHERCHES POUR LES INDUSTRIES ALIMENTAIRES CEREALIERES. 23 Nov., 1966 [21 Dec., 1965], No. 52392/66. Heading B2P. In a continuous process of classifying dry pulverulent products, e.g. flour, a permanent axially flowing air stream is maintained in a stationary cylindrical casing and given a constant angular velocity about the casing axis and particles of different diameter of the product to be classified are released into the air stream at substantially zero axial velocity and at the said angular velocity .from a particular crosssection, and at a particular distance from the axis, of the casing, the particles being thereby entrained in the air stream and being deposited on the inner wall and throughout the length of the casing with particle diameters decreasing from the inlet to the outlet end of the casing. As shown in Figure 1, a stationary classifier casing 10 is provided on its inner peripheral wall with ring members 12a-12c-carrying annular diaphragms 14a-14c-leaving decreasing radial widths from the inlet 16 to the outlet 18 of the casing so as to provide a passage of increasing cross-sectional area for the air stream whose velocity thereby decreases from the inlet to the outlet. Rotatably mounted in the casing is a rotor consisting of a shaft 22 having blades 24a-24c-secured thereto, each blade extending between adjacent diaphragms. Air is supplied by means of a fan 70 to nozzles 40 opening into a head 34 connected to the inlet end of the casing and enclosing adjustable directing vanes 42. Flour to be classified is fed via a hopper 54 and forced into the casing by one or more helical ribs 58 on the shaft 22. Horizontal blades 32 carried by the shaft impart to the flour particles an angular velocity equal to that imparted to the air by the blades 24a-24c-. Particles of the same diameter collected between each pair of diaphragms 14 are discharged through one or more slots 62, Figure 6, provided in the casing wall and opening into a spout 66 provided with an adjustbale curved deflector member 64 projecting slightly within the casing. The fan 70 draws air by means of a line 72 connected to main nozzles 48, Figure 7, opening in a head 46 at the outlet end of the casing and communicating with the zone adjacent the axis of the casings where clean air accumulates. Secondary nozzles 68 in the head 46 communicate with a zone in the casing located between the diaphragms nearest the-outlet 18 where air and undeposited fines have accumulated and are withdrawn through the nozzles by a fan 78 via a line 84 and passed through a filter 82 or cyclone before discharge to the atmosphere. Supplementary air may be admitted at 76 to line 72. A valve 80 in line 84 is adjustable so as to regulate the pressure within the casing 10, the difference in pressure between the inside and outside of the casing being kept to a minimum.