baber/WOPTO huggingface dataset:
Patent GB-302175-A (GB)
Title: Manufacture of hydroxythionaphthenes and of vat dyestuffs therefrom
IPC: C09B7/00
Filed: 1928-12-10
Abstract: 302,175. I. G. Farbenindustrie Akt.- Ges. Dec. 8, 1937, [Convention date]. Addition to 284,288. Thioindigo dyes; hydroxythionaphthenes.- Phosphorus pentoxide applied to a powdered or porous carrier is used for ring closure of arylthioglycollic acids. The 3-arythioglycolloyl derivative of the 3-oxy-thionaphthene is first produced, but the latter is readily hydrolized to give the free oxythionaphthene and the arylthioglycollic acid. In examples : (1) m-chlorphenylthioglycollic acid is introduced into a benzene suspension of a mixture of phosphorus pentoxide and anhydrous silicic acid; after boiling and filtering, the benzene is removed by distillation and the residue dissolved in hot alcoholic caustic soda solution; the free hydroxythionaphthene is precipitated by means of carbon dioxide; m-chlorphenyl thioglycollic acid is recovered from the filtrate by adding acid; (2) #-naphthyl thioglycollic acid is similarly treated to give 4 : 5-benz- 3-oxythionaphthene. The oxythionaphthenes may be converted to vat dyestuffs in the known manner.
Patent GB-507835-A (GB)
Title: Fountain pen holder
IPC: B43K5/06
Filed: 1938-12-14
Abstract: 507,835. Fountain pens. BODO, G. K. Dec. 14, 1938, No. 36427. Convention date, Aug. 8. [Class 146 (iii)] In a fountain pen which is filled by means of a reciprocating screwactuated plunger 22, the latter is made of resilient material and is propelled by means of a screw spindle 6 with one end free and consisting of a helically coiled wire of circular cross-section rotated by a plug 3 mounted at the end of the ink reservoir 1. The plunger has a tapered extension 8 of reduced diameter surrounded by a clamping ring 9, so that the plunger 22 and extension 8 embrace at least one complete turn of the spindle 6. When in use the air collected in the reservoir is expelled by rotating plug 3 with the pen held with the nib vertically upwards. The nib is provided with a tubular extension 12 to prevent a bubble of ink forming when the air is expelled. The barrel may be formed from thin metal with the nib section 14 and plug sleeve 2 cemented in place.
Patent GB-773667-A (GB)
Title: Improved motor vehicle
IPC: B60K17/22
Filed: 1955-12-21
Abstract: 773,667. Motor vehicle driving gear. GENERAL MOTORS CORPORATION. Dec. 21, 1955 [Jan. 20, 1955], No. 36615/55. Class 79(2). A motor vehicle comprises a forward propeller shaft 48 which extends downwardly towards the rear from a change-speed gear-box 32, is resiliently supported towards its rear end from the vehicle frame, and is connected by a universal joint 60 to a rearward propeller shaft 50 which is connected to the differential 40 by a universal joint 62 and is disposed below the rear seat 94 of the vehicle. The resilient support for the rear end of the shaft 48 comprises, Fig. 4, a ball bearing 74 resiliently mounted in a bracket 57 bolted to a transverse frame member 24. The ball bearing 74 is located on a reduced-diameter end-portion 66 of the shaft 48, by a member 70 of the joint 60 which is held in splined engagement with the shaft 48 by a nut 82. Since only the rearward shaft 50 has appreciable up-anddown movement, the only tunnel necessary in the vehicle floor is beneath the seat 94.
Patent GB-1085827-A (GB)
Title: Photographic developers
Inventor: MECKL HEINZ
IPC: G03C7/413
Filed: 1965-08-26
Abstract: 1,085,827. Photographic development. AGFA-GEVAERT A. G. Aug. 26, 1965 [Aug. 27, 1964], No. 36733/65. Heading G2C. Developers for producing a black and white silver image or a combined black-and-white silver and dyestuff image from a colour photographic material contain a N, N, N', N' -tetralkyl alkylene diamine having at least 3 carbon atoms in the alkylene group as an accelerator, and a silver halide developer. Specified silver halide developers are 1-phenyl-3-pyrazolidone, a mixture of hydroquinone and p-methyl-aminol phenol, and p-phenylenediamines. The developing solution may also contain carbonates, sulphites and bromides. In a typical Example, (1), an exposed tripack colour material containing specified colour couplers is developed with a solution containing inter alia N-butyl-N-w-sulphobutyl-pphenylene diamine, hydroxylamine sulphate and (CH 3 ) 2 N(CH 2 ) 6 N(CH 3 ) 2 , fixed, and hardened with HCHO; in Example (2) a similar material is developed with a solution containing the diamine of Example 1, 1-phenyl-3-pyrazolidone, and benzotriazole, given a diffuse exposure, developed with the developers of Example 1, and fixed in a silver bleach-fixing bath.
Patent GB-1117024-A (GB)
Title: Improvements in thimble seals
IPC: H01J5/42
Filed: 1965-09-01
Abstract: <PICT:1117024/C1/1> A method of making a seal for an electric discharge device, particularly a stem preassembly therefor comprises sealing an intermediate fused quartz tube 211 peripherally at one end at some intermediate point along the length of an outer fused quartz tube 18 and then peripherally sealing an inner fused quartz tube 23 to the other end of the intermediate tube 211 and extending said inner tube 23 back through tube 211, the free end of inner tube 23 being closed at 25, hermetically sealing a molybdenum thimble 14 to a tungsten rod 5 extending through the thimble, the thimble having a "feathered" edge, inserting the thimble rod assembly into the stem pre-assembly in such a fashion that the rod 5 passes inside the inner tube 23 and the thimble 14 passes between the outer tube 18 and intermediate tube 211, applying a vacuum within the outer tube against the closed end of the thimble and applying a gas pressure to the other side thereof, and applying heat around the outer tube 18 progressively from the closed end of the thimble to its feathered edge so that both the intermediate tube and the outer tube are caused to collapse and seal against the feathered edge of the thimble 14 and also to collapse the inner tube on to and to seal it with the tungsten rod 5.  So that the seals only occur at the feathered edge of the thimble and at the end of the inner tube, molybdenum foils 27, 30, 32 are placed between the thimble, rod and quartz tubes.  The thimble has a length to diameter ratio of at least 1.75:1.  The outer and inner quartz tubes are cut off beyond the thimble seal and a quartz-glass capillary (40), (Fig. 9, not shown), is joined on to the end of the outer tube to provide support for the tungsten rod.
Patent GB-1282598-A (GB)
Title: Process for preparing organosilicon nitrogen compounds
IPC: C07F7/10
Filed: 1969-07-25
Abstract: 1282598 Preparing aminosiloxanes from hydrosiloxanes UNION CARBIDE CORP 25 July 1969 [26 July 1968] 37393/69 Headings C3S and C3T A siloxane containing at least one Si-bound amino group is prepared by reaction of a siloxane containing at least one unit H a SiR b O 3-a-b/2  wherein R is a C 1-18 , monovalent, optionally substituted hydrocarbon radical, a is 1, 2 or 3, b is 0, 1 or 2 and a + b is 1, 2 or 3, any other units being R c SiO 4-c/2  wherein c is 0, 1, 2 or 3, with an   amine R 1 R 2 NH, wherein R 1  and R 2  are each a C 1-18  monovalent hydrocarbon radical or R 1  may be H, in the presence of a Pt catalyst. In examples, hydrosiloxanes (Me 3 SiO) 2 SiMeH, (HMe 2 Si) 2 O and various polymers Me 3 SiO- [MeHSiO] n [Me 2 SiO] m SiMe 3 , where n is 4À5 to 18 and m is 12 to 48, are heated with diethylamine or dimethylamine in the presence of Pt on gamma alumina or H 2 PtCl 6 .6H 2 O in tetrahydrofuran, to give products which are fully aminated, except for Et 2 NMe 2 SiOSiMe 2 H produced in Example 2.
Patent GB-1441469-A (GB)
Title: Apparatus for reading coded information carried on the surfaces of movable objects
IPC: G06K7/10
Filed: 1974-08-28
Abstract: 1441469 Code reader FERRANTI-PACKARD Ltd 28 Aug 1974 [31 Aug 1973] 37523/74 Addition to 1417439 Heading G4M [Also in Division H4] The reader of the parent specification includes means for rotating the scan direction of the television camera into alignment with data to be read. A label on an article is passed beneath a television camera which scans a given area. The label has two spaced longitudinal bars between which are coded data values. Detection of the first bar in the direction of scan causes clock pulses 46 to be fed to a counter 7 and if the bar has a width within predetermined limits a counter 11 is incremented. If the second bar is detected within predetermined limits counter 11 is incremented again to enable AND gate 26 which is one of the inputs to gates 21, 24. To determine the skew of the bars relative to the camera scan direction the distance between the second bar and the edge of the television camera frame is measured at two spaced positions on the label. Preferably the spaced positions corresponds to scan lines numbers 102 and 150 of the television frame. Counter 22 which is incremented for each frame line feeds decoder 23 which enables gate 21 at frame 102 and gate 24 at frame 150. When the second bar is detected on frame line 102 clock pulses are fed to increment counter 25 until counter 11 is reset to inhibit gate 26 when a line sync pulse LSP is received at the end of each line. When the second bar is detected on line 150 the counter 25 is decremented. The value remaining in the counter is fed to a computer which determines the angular shift required and feeds a # to the circuit of Fig. 8 which feeds a value H cos #= K 1 Vsin# to the horizontal deflection circuit HDC of the camera and Vcos #K 2 H sin # to the vertical deflection circuit VDC. The plus or minus in the equations determine the direction of rotation of the raster and are controlled by a switch and inverters I1, I2. The values K 1  K 2  are chosen so that a value V or H producing a given deflection in the vertical and horizontal directions respectively produces the same deflection in the horizontal and vertical directions respectively. Preferably a camera is chosen so that both constants equal '1'.
Patent GB-1321754-A (GB)
Title: Automatic analyzer
IPC: G01N35/02
Filed: 1971-08-10
Abstract: 1321754 Automatic analysis L'AUTOMATION CHIMIQUE & NUCLEAIRE and COMMISSARIAT A L'ENERGIE ATOMIQUE 10 Aug 1971 [14 Aug 1970] 37547/71 Heading B1X [Also in Division B8] Automatic analysis apparatus for performing a series of analyses on a single sample comprises means for displacing successive series of test tubes 4 along parallel paths 6, (one tube of a series being intended for example to be analysed and the other tubes of that series being reaction tubes intended to receive sample and reagent), means 10 for taking predetermined volumes of a sample from one tube of each series and transferring each sample volume into a respective other (reaction) tube of that series, means 11 for injecting into each reaction tube a predetermined volume of at least one reagent and means 12 for taking from each reaction tube a dose of its contents and analysing it in means 13, all means specified above being controlled by a pre-established programme, and means being provided for detecting the presence of a reaction tube on each of the paths followed by reaction tubes and for automatically preventing the operations of sample transfer and reagent injection when no reaction tube is detected in a path. The means for detecting the presence of a test tube may comprise for each path a pair of rods 49 each having a flexible element 50, the passage of a tube between elements 50 operating to close a microswitch and permit operation of the sample transfer or reagent injection means. The tubes may be supported for transport along lines 6 in holes in supports 3, the bases of the tubes being guided by stationary rails (21) and movable rails (22) to allow the tubes to be lowered into an incubator zone of adjustable length if required (Figs. 3, 6, not shown). There is a reference to inclusion in the analysis apparatus of units for dialysis and for precipitation of solid matter.
Patent GB-1203487-A (GB)
Title: Process for the production of porous diaphragms
IPC: C25B13/08
Filed: 1968-08-08
Abstract: 1,203,487. Porous diaphragms. SIEMENS A.G. 8 Aug., 1968 [18 Aug., 1967], No. 38003/68. Headings C3C and C3P. Porous diaphragms are made by forming a solution of homo- or co-polymer (which may be cross-linked or non-cross-linked), containing both hydrophobic and hydrophilic groups, there being at least 12 carbon atoms in the molecule per hydrophilic group, and precipitating the polymer from the solution in the form of a porous plate so as to form the diaphragm which is suitable for use in an electrochemical cell. In examples solutions of copolymers of methyl or butyl methacrylate and methacrylic acid, or of hydrolysed vinyl acetate and vinyl chloride, in dimethylformamide, aq. alcoholic KOH or tetrahydrofuran were spread out on a glass plate (or injected into water) and precipitation occurred by evaporation of the solvent and/or contacting the solution with water, isopropanol, tetrahydrofuran or aq. KOH.
Patent GB-1016818-A (GB)
Title: Improvements relating to strain gauges
IPC: G01L1/22
Filed: 1964-09-18
Abstract: 1, 016, 818. Electric strain gauges. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Sept.18, 1964 [Sept.23, 1963], No. 38162/64. Heading G1N . The lead-out wires 5 of a strain gauge element 2 are prevented from breaking off too easily by laying a fibrous strip 6 across them and securing the gauge element 2, the wires 5, and the strip 6 between two layers of impregnated paper, the assembly being compressed in a heated press to produce the finished gauge. The element 2 may be of wire of foil and the overall thickness of the strain gauge is a fraction of a millimetre.
Patent GB-326894-A (GB)
Title: Improvements in dynamo electric machines
IPC: H02K1/14
Filed: 1928-12-28
Abstract: 326,894. Crabtree &. Sons, Ltd., R. W., and Adkins, F. S. Dec. 28, 1928. Cores, yokes, and carcass structures.-In a multipolar continuous-current machine with a magnet frame having as many external straight sides as the machine has poles and the poles arranged in pairs with each side of each pole in any one pair parallel to a line joining the midpoint of that pair to the centre of the machine shaft, the metal of the magnet frame between the poles of each pair is thickened. By this arrangement, the magnetic leakage is reduced and the size and weight of the magnet system for a given output are reduced while leaving room for sufficient interpole copper. The pole pairs are so arranged that the mid-points of the pole arcs are separated by (360 ¸ pole number) degrees. The Figures show a space frame 4-pole machine with integral poles c. The yoke between the poles of the pairs is thickened at b by an amount in accordance with the desired ratio of reluctances in the vertical and horizontal sides of the machine. The frame at places other than the thickened regions b may be of uniform thickness or it may have a thickened belt, as shown by the dotted line d, Fig. 2, all round it between the thickened portions b, this belt d being flanked by thin portions d' and having the same axial length as that of the poles or armature core. The vertical height of,a fourpole frame may be different from its width and the poles may be of any section.
Patent GB-1501389-A (GB)
Title: Filters for gas detectors
IPC: G01N21/45
Filed: 1974-09-03
Abstract: 1501389 Gas absorption detector INDUSTRY SECRETARY OF STATE FOR 22 Aug 1975 [3 Sept 1974] 38485/74 Heading G1A [Also in Division G2]  A gas detector for detecting a gas in an atmosphere comprises, in sequence, a radiation chopper, a wide band-pass filter, an interferometer, and a radiation detector connected to an electrical output; two gas cells containing gas of the type to be detected and at different pressures are positioned one on each of two equal length optical paths of the interferometer, the gas cells having equal lengths along the optical paths therethrough. The end-walls of each cell may be germanium, zinc selenide or potassium bromide. A single or double pass Michelson interferometer may be used.
Patent GB-350993-A (GB)
Title: Composite covering materials and methods of making the same
IPC: C08J7/04
Filed: 1929-12-16
Abstract: Wrapping foils or sheets consist of a gelatine or other proteid base to both faces of which is applied a solution of cellulose nitrate to which has been added a small quantity of castor oil for the purpose of causing the cellulose nitrate film to be integrally united to the gelatine &c. base.  The coated foil or sheet is tough, pliable, moisture and greaseproof, and is resistant to bacteria and mould growth.  Suitable proportions of castor oil are 15-80 per cent of the weight of the cellulose nitrate.  The coating may be applied by dipping the gelatine &c. sheet in a body of solution, or by pouring the solution on to the sheet, or by brushing, spraying, or printing. If a coloured sheet is desired, dyes may be dissolved in the coating solution.  Substitutes for gelatine are casein, albumin, agar-agar, and alginate products. Specifications 1454/07, [Class 94 (i), Packing &c.], and 20690/90, [Class 95, Paints &c.], are referred to.
Patent GB-1450126-A (GB)
Title: Desulphurisation catalyst and their use
IPC: C10G45/08
Filed: 1973-08-15
Abstract: 1450126 Hydrodesulphurisation catalyst BRITISH PETROLEUM CO Ltd 11 July 1974 [15 Aug 1973] 38576/73 Heading B1E [Also in Division C5] A hydrodesulphurisation catalyst comprises a refractory suport, 1-10% wt of an iron group metal, 5 to 25% wt of Cr, Mo or W, and 0.1- 10% wt of a rare earth (At No. 57-71), e.g. lanthanum or cerium. The catalyst may be supported, e.g. on alumina containing up to 5% wt of silica or phosphate, or silica alone or a mixture of alumina and silica. The catalyst may be formed by simultaneous or sequential impregnation of the support followed by calcination and, if desired, sulphidation. The Examples describe alumina-supported catalysts comprising oxides of molybdenum, cobalt and cerium or lanthanum.
Patent GB-1492490-A (GB)
Title: Low friability rigid polyurethane foam
IPC: C08G18/50
Filed: 1975-09-22
Abstract: 1492490 Polyurethane foams OLIN CORP 22 Sept 1975 [23 Sept 1974] 38830/75 Heading C3R A rigid polyurethane foam is prepared by a process which comprises reacting a polyether polyol reactant with an organic polyisocyanate in the presence of a catalyst and a foaming agent wherein the polyether polyol reactant comprises a first polyether polyol which has an OH number of from 150-800 and has been produced by condensing 4,4,4-trichloro-1,2- epoxybutane with a mixture of dextrose and water and/or an aliphatic diol or triol, and wherein the polyether polyol reactant further comprises a second polyether polyol which is a polyoxyalkylene polyol having 2-3 hydroxy groups and a M.wt. of from 1000 to 6000, the second polyol being present in such a proportion as to result in the formation of a foam of reduced friability; the said proportion generally being from 5-35 pbw per 100 pbw of the first polyol. The second polyol may be one prepared by condensing an aliphatic diol and/or triol with at least one C 2 -C 4  alkylene oxide using random or stepwise oxyalkylation techniques. The preferred second polyol is an oxypropylated or oxypropylated then oxyethylated diol or triol. Suitable aliphatic diols and triols for use in preparing the polyols are ethylene glycol, propylene glycol, butylene glycol, glycerol, trimethylolpropane and triethylolpropane. The dextrose includes hydrous dextrose, e.g. α-dglucose monohydrate and anhydrous dextrose, e.g. d-glucose The preferred polyisocyanates are toluene diisocyanate and/or polymethylene polyphenylisocyanate. The foaming agent may be water and/or a halocarbon, and the catalyst may be a tertiary amine or an organic metal salt. The reaction mixture may also include a surfactant, e.g. silicone oils and soaps. The foam may be prepared by the one-shot or prepolymer technique. In the examples foams are prepared from the following formulation: a polyether polyol (OH number 360) prepared by condensing in the presence of a boron trifluoride etherate catalyst, 4,4,4-trichloro-1,2-epoxybutane with an equimolar mixture of ethylene glycol and α-d-glucose monohydrate; polymethylene polyphenylisocyanate; trifluoroohloromethane; dimethylcyclohexylamine catalyst; a silicone glycol surfactant; and either an oxypropylated glycerin (M.wt. 1000-3000), or an oxypropylated ethylene glycol (M. wt. 1000-4000), or an oxypropylated then oxyethylated glycerin (M.wt. 3000-5840).
Patent GB-848296-A (GB)
Title: Improvements in the manufacture of glass
IPC: C03C1/02
Filed: 1958-12-03
Abstract: 848,296. Glass manufacture. HUSTINX, E. Dec. 3, 1958 [Dec. 3, 1957], No. 38958/58. Class 56. A process of manufacturing glass comprises heating a mixture of at least one alkali silicate in dry form with at least one silicate of a bivalent metal to the temperature required for producing a homogeneous molten mass. Na silicate preferred to K silicate with Ca and Mg as the preferred bivalent silicate. Pb and Al silicates may also be used and other constituents such as V and B compounds, Li, Bi, Cd silicates, finely divided metal such as Ag, and synthetic rubbers and resins or silicones are referred to in particular examples for making lenses, prisms, window glass, fibres and foils.
Patent GB-1062743-A (GB)
Title: Siliceous fiber mats and method of making same
IPC: D04H1/64
Filed: 1963-10-07
Abstract: Water-repellent porous glass-fibre mats suitable for insulation purposes are made by forming a mat of randomly arranged glass fibres in a cured thermosetting resinous binder, said resin being modified by a silicone resin, and coating the mat with an aerosol of a silicone resin and an amino-functional silane or metal octoate, the aerosol particles having an average particle size between 0.5 and 10 m .  The thermosetting resin may be a phenol-formaldehyde resin.
Patent GB-1040636-A (GB)
Title: Improvements in or relating to apparatus for an external pointer-adjustment to a dial instrument
IPC: G01R11/02
Filed: 1964-09-28
Abstract: 1,040,636. Fluid actuation of switches; thermal switches. DRESSER INDUSTRIES Inc. Sept. 28, 1964 [Nov. 1, 1963], No. 39495/64. Heading H2B. [Also in Division G1] A dial instrument comprises an index marker 18 on an arm 20 which can be set relative to scale indicia 16 by a lever arrangement 40, 38, 32, 30 mounted in the cover glass 12 so that by manipulating the arm 40 from outside the case 10 the arm 30 inside can be tilted towards the dial 14 and then turned to engage and drive the arm 20. The arm 30 is secured to a shaft 32 passing the clearance through an aperture in the glass 12 and embraced by resilient 0-rings 34 held frictionally against opposite faces of the glass 12 by a collar 38 press-fitted to the shaft 32 and carrying the arm 40. The arm 30 is thin enough to be manipulated past the tip 26 of the arm 20 either on the side of the dial 14 or of the glass 12. Two settable arms 20, 21 may be provided, each attached to a cam 22, 24 operatively connected to switch actuating mechanism whereby a switch can be made to alternate between its on and off condition in response to a change of temperature or pressure.
Patent GB-1011987-A (GB)
Title: Improvements relating to magnetic storage apparatus
IPC: C22C14/00
Filed: 1962-10-18
Abstract: Thin magnetic films having anisotropic ferromagnetic properties are produced by applying to a supporting surface nickel and iron by vapour deposition in a direction normal to the surface and simultaneously applying a nonmagnetic metal by vapour deposition in a direction at an angle between 3 degrees and 20 degrees to the normal to the surface.  The coating may contain nickel and iron, in a ratio between 90:10 and 70:30, with molybdenum as the non-magnetic metal in amount between 0.1% and 14%, the nickel and iron being evaporated from a crucible and the molybdenum from an electrically heated wire. The coating may be applied to a thickness less than 2000 Angstrom units on a support of glass in a vacuum, the glass being heated to 200-250  DEG C. during deposition.  The method can be improved by carrying out the deposition in a magnetic field of 10-100 oersteds whose direction depends on the direction of the stream of molybdenum vapour.