baber/WOPTO huggingface dataset:
Patent GB-867247-A (GB)
Title: Catalyst and method of manufacturing same
IPC: B01J35/06
Filed: 1958-10-02
Abstract: A method of making a catalyst comprises mixing an alumina and/or silica carrier with 1-15 mm. fibres, pelletting or granulating and then activating at an elevated temperature at which the fibres are removed; optionally, the fibres are impregnated with at least one catalyst component before being mixed with the carrier.  Preferably, the impregnation of the fibres and the pills or granules is such that the concentration of active components is greater on the surface of the walls of the larger pores and on the surface of the pills or granules than on the surface of the smaller pores.  The catalyst produced by the method of the invention is stated to contain pores of diameter between 4 and 150 m  in the microporous carrier.  Catalyst components such as halogens may be chemically bound in the fibres and subsequently 'captured' by the carrier during the burning, e.g. in the case of fluorinated polymer fibres.  In Examples: (1) viscose fibres (8-10 mm.) impregnated with ammonia fluorosilicate were mixed with alumina and the product, after homogenizing with ethanol, pilling and dying was impregnated with aqueous H2PtCl6, dried, calcined and finally reduced with hydrogen; (2) alumina impregnated with platinum sulphide was mixed with viscose fibres (8-10 mm.) wetted and pilled with stearic acid, calcined and reduced;; (3) viscose fibres (5-8 mm.) containing ammonium fluorosilicate and hydropholized on the surface with a resin (hardened with aluminium sulphate and prepared from a higher alkylated phenol and formaldehyde) were mixed with alumina gel peptized with acetic acid, the product extruded, cut, dried and impregnated with platinum sulphate/nitrate solution, thereafter sulphided with H2S, washed and burnt; (4) alumina gel/silica gel mixture was commingled with cotton linters (1-10 mm.), granulated, dried, burnt, and activated with superheated steam.  It is stated that the catalytically active metals Pd, Ni, Co, Fe or Mo may also be used and that ammonium fluorosilicate may be replaced by the corresponding aluminium salt.
Patent GB-930678-A (GB)
Title: Improvements relating to magnetic amplifier circuits
Inventor: PRITCHARD ALAN EDWARD
IPC: H03F9/02
Filed: 1960-09-13
Abstract: 930,678. Automatic current control. W. H. SANDERS (ELECTRONICS) Ltd. Sept. 8, 1961 [Sept. 13, 1960], No. 31566/61. Class 38 (4). [Also in Group XXXIX] A direct current is stabilized by means of a magnetic amplifier circuit. The D.C. is fed through bus-bar 14 to bias transductors 1, 2 in the same direction, while transductor 1 is also biased by winding 15 in the opposite direction, so that the characteristics are displaced as in Fig. 6. The outputs from the A.C. windings 3, 4, 5, 6 of the transductors are rectified and bias transductor 24 in opposite directions. The output from transductor 25 is used to control the current in bus-bar 14.
Patent GB-649111-A (GB)
Title: Improvements in or relating to a beverage mixer
IPC: B01F9/00
Filed: 1947-12-01
Abstract: 649,111. Mixing beverages. STEVENS, A. H. (Liquid Carbonic Corporation). Dec. 1, 1947, No. 31681 [Class 86] In a machine for mixing beverages comprising bottle supports 5 pivoted at 7 to a rotating head 1 and in which the bottles are inverted and then rotated on their axes, this rotation is effected by the engagement with a rotary cast-iron driving wheel 17 of a wheel 16 on the bottle support which wheel is composed of cork and polymerized chloroprene. Specification 532,254 is referred to.
Patent GB-520869-A (GB)
Title: Improvements in window pelmets
IPC: A47H27/00
Filed: 1938-11-03
Abstract: 520,869. Curtain pelmets. SMART, L. R. Nov. 3, 1938, No. 31803. Addition to 505,254. [Class 52 (v)] The pelmet set forth in the parent Specification is supported by brackets 8 attached at any part of the top flange 2 or 4 of the cooperating sections of the pelmet, which are connected together by bolt and slot connection. Conveniently the bracket may be attached by the bolt used for connecting the sections. The end parts 6 may be extensible and have eyed supporting lugs 7. For bow windows the pelmet may be in parts 9, 10, Fig. 4, connected for bending by flexible copper plates 11 soldered to the inside face. The supporting brackets may be in hinged parts to enable the pelmet to be turned up for access to the curtains.
Patent GB-738772-A (GB)
Title: Improvements in and relating to vacuum flasks
Inventor: WILSON JOHN EDWIN
IPC: A47J41/02
Filed: 1952-12-16
Abstract: 738,772. Pourers. THERMOS (1925), Ltd. Dec. 3, 1953 [Dec. 16, 1952], No. 31848/52. Class 125 (1). [Also in Group XIII] A pourer for a vacuum flask comprises an annular body of resilient plastic having a peripheral edge 2 formed with a pouring lip, an exterior flange 3 at the other end of the ring, and preferably an interior flange 4 the body being adapted to be fitted around the neck of the glass refill 7 and held in position by engagement between the flange 3 and a peripheral flange 10 on the jacket shoulder which deforms the body into sealing engagement with the refill, a further seal being formed at the engagement of the flange 4 with the mouth of the refill. The pourer may be provided with a second internal rim 12 to embrace the neck of the glass refill. The annular ring may be of frusto-conical shape. The pourer may be produced as a one-piece moulding in polyethylene.
Patent GB-1185151-A (GB)
Title: Improvements relating to the Production of Artificial Spandex Filaments
Inventor: MAHOMED RAMON SIDICK
IPC: D01F6/72
Filed: 1966-07-15
Abstract: 1,185,151. Making spandex filaments. COURTAULDS Ltd. 14 July, 1967 [15 July, 1966], No. 31909/66. Heading B5B. [Also in Division C3] In the manufacture of spandex filaments by reacting an hydroxyl terminated polyester or polyether with an excess of a diisocyanate of the type OCN-R-NCO in which R is a divalent hydrocarbon radical to form a spandex precursor and extruding a solution of the precursor into a coagulating or spinning bath containing a difunctional compound capable of reacting with isocyanate groups to form the spandex polymer in filament form, a substituted phenol is added to the preformed polyester or polyether, in a minor proportion based on the weight of the polyester or polyether, before the polyester or polyether is reacted with the diisoyanate, and after the filaments have been produced and have been withdrawn from the spinning bath, they are stretched in the never-dried state and heated while they are so stretched, e.g. during the drying of the filaments. The substituted phenol contains, in addition to at least one OH group, at least one further group, such as an amino, nitro, halo or substituted alkyl group. The preferred compound is "bisphenol A" (i.e. p-p<SP>1</SP>-isopropylidene diphenol). In an example, a polyester of molecular weight about 3100 is prepared by heating together ethylene glycol, propylene glycol, glycerol and adipic acid; 2% of bisphenol A, based on the weight of the polyester, and p-p<SP>1</SP>-diphenylmethane diisocyanate are added. The reaction mixture is diluted to 88% solids content with tetrahydrofuran and the solution obtained is extruded into a 12% solution of ethylene diamine is isopropyl alcohol. The filaments thereby formed are removed from the spinning bath, washed with water to remove adherent spinning bath constituents, stretched 85% and then dried while so stretched on a reel heated to 180‹ C.
Patent GB-1111711-A (GB)
Title: Plaster compositions
Inventor: KILLICK ALAN
IPC: C09D133/08
Filed: 1964-08-05
Abstract: Plaster compositions comprise plaster solids together with an aqueous dispersion of an acrylate homo- or co-polymer giving a Persoz film hardness of up to 100.  The plaster solids may comprise anhydrous calcium sulphate and/or calcium sulphate hemi-hydrate, and the compositions may also contain non-cementitious fillers, e.g. clay, whiting and calcium sulphate dihydrate.  A particularly suitable mixture of plaster and filler is dead burnt gypsum.  Suitable acrylate polymers are exemplified, and the compositions may also contain an emulsifying agent and conventional additives such as setting accelerators or retarders.  The compositions may be used for conventional building purposes and also to make pottery moulds and medical plaster casts, and to coat flexible and non-flexible substrates.ALSO:Flexible sheets of expanded polystyrene, and sheets of wood fibre or chip board, blockboard or asbestos board, are coated with a plaster composition comprising conventional plaster solids and an aqueous dispersion of an acrylate homo- or -co-polymer giving a Peroz film hardness up to 100.
Patent GB-981703-A (GB)
Title: Process for production of bis (ª‰-hydroxyethyl) terephthalate
IPC: C07C69/82
Filed: 1963-08-13
Abstract: A process for the preparation of bis (b -hydroxyethyl) terephthalate comprises reacting terephthalonitrile, water and ethylene glycol, using as a catalyst, preferably in an amount of 0.01 to 1% by weight of the nitrile, an oxide or salt of copper, zinc, cadmium, mercury, nickel, manganese or cobalt preferably at a temperature in the range of 100-300 DEG  C. e.g. 180-280 DEG . The ethylene glycol is preferably charged in the mol. ratio of 5-10 per mol. of nitrile group and the water substantially 1 mol. per mol. of nitrile group. Examples are given and many catalysts are specified.  Specification 800,875 is referred to.
Patent GB-300611-A (GB)
Title: Improvements in treatment of black powder
IPC: C06B21/00
Filed: 1928-11-02
Abstract: 300,611. Imperial Chemical Industries, Ltd., (Assignees of Ellsworth, H. E.). Nov. 16, 1927, [Convention date]. Explosives. - Gunpowder or like explosive in granular form is moistened with a solution of nitrocellulose or other cellulose derivative which deposits a coating on the grains, but leaves the grains separate, the coating retarding the rate of combustion of the powder and rendering it specially useful for safety fuzes. Specifications 17506/87 and 20104/89, [both in Class 9 (i), Ammunition &c.], are referred to.
Patent GB-600886-A (GB)
Title: Method for the manufacture of metallic hollow bodies
IPC: B65D6/02
Filed: 1945-11-27
Abstract: 600,886. Closed sheet metal bodies. MAILLARD, M. J. Nov. 27, 1945, No. 32000. Convention date, Aug. 13. [Class 66] [Also in Group XV] Hollow sheet-metal bodies, e.g., cubes or tetrahedra which cannot be opened, e.g. for use as toys are assembled from an open - ended part 1 having inwardlyturned wall - extensions 2 ribbed at 3 to receive a flanged closure plate 4 at one or both ends, the flanges 5 being grooved at 6 to interlock with the ribs 3 when snapped into place.
Patent GB-1072085-A (GB)
Title: Improvements in or relating to spirit levels
IPC: G01C9/28
Filed: 1965-07-27
Abstract: 1,072,085. Levels. A. WULLSCHLEGER. July 27, 1965 [July 29, 1964], No.32000/65. Heading G1F. A spirit level comprises a hollow light metal alloy body 1 of rectangular cross-section containing two bubble bodies 6, 7 of transparent synthetic plastics material. The body 1 may be provided with ribs 2 and with resilient end caps (not shown). The bubble bodies are mounted detachably and adjustably in the body 1 e.g. by means of screws 9. In an alternative arrangement the bubble may be cylindrical and may be pressed into a sleeve extending transversely of the body 1. The body 1 may be formed with a groove 4 on one of its narrow faces so that the level can be set on a round body. Permanent magnets may also be provided in the body 1 for ease of attachment to desired surfaces.
Patent GB-670479-A (GB)
Title: Process and apparatus for cracking vegetable tar
IPC: C10C1/20
Filed: 1949-12-14
Abstract: Vegetable tar is cracked by applying a moving spray of the liquid tar against the inner wall of a container heated to a temperature between 350 DEG  and 500 DEG C.; and the vaporous products so formed are introduced into a fractionating column from which various condensates may be withdrawn.  These condensates are suitable as solvents or, when mixed with ethyl alcohol, <PICT:0670479/III/1> as fuels in internal combustion engines.  In the drawing, the container comprises a metal cylinder a which is heated to about 500 DEG C. by furnace b; and the tar is sprayed against the walls of the cylinder through atomizer 5 which forms part of the working-face of reciprocating piston 3.  The tar is supplied from reservoir d, from which it is pumped by pump e to atomizer 5 via flexible hose 9 and the bore of hollow piston-rod 4.  The vapours, formed by the cracking, are passed to rectifying column h; and the carbon-residues are discharged into two sumps 10.  The light fractions are mainly composed of benzene, toluene, xylene, cumene, chrysene, and saturated acyclic hydrocarbons; and it is possible to convert 28 per cent of the tar into hydrocarbons boiling between 70 DEG  and 200 DEG C.
Patent GB-172497-A (GB)
Title: Improved reduction and reversing gearing
IPC: F16H57/02
Filed: 1920-11-13
Abstract: 172,497. Gardner, R. Nov. 13, 1920. Reversing-gearing comprising overlapping epicyclic trains brought into action alternatively by brakes effects a large speed reduction on both forward and reverse drives, and is suitable for turbine marine propulsion. A high-speed shaft 1 drives a wheel 3 through worm or other reducing- gearing. The wheel 3 is secured to a frame 4 carrying planet spindles 6, fast on which are pinions 9 meshing with a wheel 11 on a driven or low-speed shaft 12. Pinions 10 larger than the pinions 9 mesh with a loose sun gear 10<a> adapted to be held by a brake 10<b> for forward driving. Pinions 8 smaller than the pinions 9 mesh with a loose sun gear 8<a> adapted to be held by a brake 8<b> for reversed driving. These gear pairs may be of the double-helical type, and proper tooth mesh may be obtained by allowing sliding movement of the gears and by constructing the carrier 4 of rigid and yielding parts. The torque may be measured by an indicator 14, Fig. 3, attached to brake band 10<b>. Lubrication may be effected through an oil passage within the shaft 12.
Patent GB-663700-A (GB)
Title: Method of producing a crystalline mixture of hexamethylenetetramine thiocyanic acid and ammonium sulphate
IPC: C01C1/24
Filed: 1949-12-15
Abstract: A crystalline mixture of hexamethylenetetramine thiocyanic acid and ammonium sulphate is prepared by treatment of hexamethylenetetramine with ammonium thiocyanate in an organic solvent in presence of concentrated sulphuric acid.  Only part of the amine need be dissolved in the solvent, e.g. methanol or ethanol.  An example is given of the process.
Patent GB-385407-A (GB)
Title: Improvements in or relating to refrigeration apparatus of the adsorption or absorption type
IPC: F25B17/08
Filed: 1931-11-21
Abstract: 385,407. Refrigerating. SILICA GEL, Ltd. and YOUNG, A. E., Bush House, Aldwych, London. Nov. 21, 1931, No. 32319. [Class 29.] Absorption n machines and systems.-In refrigerating-machines comprising more than one absorber or adsorber, an adsorber which has been mainly freed of adsorbed fluid by heat and is about to be connected to the evaporator, is first connected to another adsorber which has been adsorbing vapour from the evaporator. The manual or automatic valves A<3>, A<4> , B<3>, B<4> which serve to connect adsorbers A, B to the evaporator E or condenser C, when changing connections first connect the two adsorbers together through pipes L or L<1>. The effect is that the pressure in the adsorber which has been discharging vapour into the condenser is lowered so that it is further freed of vapour, while the pressure in the adsorber which has been adsorbing fluid from the evaporator is raised so that the fluid concentration in this absorber is increased. The efficiency of the refrigerating cycle is increased by this increase in the range of the change of concentration in the adsorbers.
Patent GB-350457-A (GB)
Title: A process for the manufacture of vat dyestuffs from dibenzanthrone and iso-dibenzanthrone and the products produced thereby
IPC: C09B3/32
Filed: 1929-12-10
Abstract: Chlorodibenzanthrones and isodibenzanthrones.-Dibenzanthrone or isodibenzanthrone suspended or dissolved in an inert anhydrous organic diluent or solvent and in the presence of aluminium chloride is treated with the chloride of a metal (other than aluminium) or non-metal which can act as chlorinating agent by transformation into a chloride of lower valency, to produce dyestuffs giving red-blue shades of good fastness.  Metal chlorides which may be used are ferric, chromic and cupric chlorides; non-metal chlorides are arsenic, antimony, and phosphorus chlorides.  Suitable solvents are nitrobenzene, trichlorbenzene, xylol or naphtha.  In examples dibenzanthrone (or isodibenzanthrone) in presence of anhydrous nitrobenzene and aluminium chloride is treated with phosphorus pentachloride. The products are especially fast to chlorine and light. Specification 341,229 is referred to.
Patent GB-179969-A (GB)
Title: An improved process for the treatment of leather with india rubber
IPC: C14C9/00
Filed: 1920-11-19
Abstract: In a process for impregnating leather with india-rubber such as described in Specification 9870/09, [Class 70, India-rubber &c.], the leather is treated with a clarifying or grease-removing solution prepared from a stock solution of crystalline powdered sulphur in carbon bisulphide or tetrachlorethane by precipitating the undissolved sulphur by the addition of ecetone, ether, and benzol and adding paraffin or petrol to the mixture thus formed.ALSO:Fats and fatty oils, extracting by solvents.-In a process for impregnating leather with india-rubber such as described in Specification 9870/09, [Class 76, Leather], the leather is treated with a clarifying or grease-removing solution prepared from a stock solution of crystalline powdered sulphur in carbon bisulphide or tetrachlorethane by precipitating the undissolved sulphur by the addition of acetone, ether and benzol and adding paraffin or petrol to the mixture thus formed.
Patent GB-1011366-A (GB)
Title: Improvements in or relating to the production of knitted fabrics
Inventor: NUTTING TONY STAPLETON
IPC: D04B35/22
Filed: 1960-09-23
Abstract: A knitted fabric which exhibits substantially no tendency to shrink when subjected to wet treatment is produced by knitting the yarn in a moisture laden condition so that the knitted loops are produced with substantially the same dimensions as those to which they would otherwise be decreased by the said wet treatment.
Patent GB-985794-A (GB)
Title: Improvements in or relating to an insulated conductor cable
IPC: H01B9/00
Filed: 1962-08-24
Abstract: 985,794. Cables. SOC. ANON DES USINES CHAUSSON. Aug. 24, 1962 [Oct. 2, 1961], No. 32708/62. Drawings to Specification. Heading H1A. To prevent the conductive core of a circulating-fluid cooled cable rubbing against the inner wall of its loosely enveloping insulating cover, the core is immersion coated with a thin layer of plastics material at a temperature between 200‹ C. and 250‹ C. The layer is formed sufficiently thin to ensure the formation of surface beading after being stretched in use, to further reduce friction. The inner walls of the outer insulating cover of the cable may be painted e.g., with silicone paint.
Patent GB-880731-A (GB)
Title: Improvements in or relating to apparatus for converting rotary motion into linear motion
IPC: F16H25/20
Filed: 1959-09-25
Abstract: 880,731. Cams; screw-and-nut gearing. MAROTH, A. M. Sept. 25, 1959, No. 32731/59. Class 80 (3). Rotary motion of a driving member 10 is converted into linear motion of a driven member 11 by mechanism comprising undulating face cams 19, secured to the driving member 10, which produce to-and-fro linear movements of complementary non-rotating cams 21, nuts 15, 16 engaging a screw-thread 14 on the driven member and which are moved axially in one direction by the cams 21, and cam-and-follower mechanisms 37, 38 which cause return rotation of the nuts 15, 16 on the thread 14 during movements of the cams 21 in the opposite direction. Balls 24 are mounted in cages 25 located between the driving and driven cams 19, 21 and the face-cam mechanisms are arranged out of phase with one another so that one is effecting an operative stroke whilst the other is returning. The face cams may have symmetrical rise and fall portions 26, 27, Fig. 7, or, alternatively, they may have gradual rise portions 28 and steeper fall portions 29, Fig. 8. The ball cages 25 are driven at half the speed of the driving member 10 through shafts 32, carrying pinions 33, 35, mounted in carriers 22. The cams 37 are secured to the driving member 10 and the followers 38 are secured to shafts 39 rotatably mounted on the carriers 22. Pinions 41 on the shafts 39 mesh with gear-teeth 42 on the nuts 15, 16. The followers 38 comprise crossed arms carrying pins 46, Fig. 2, which are held stationary by their engagement with cam portions 37b and cause rotation of the gearing 41, 42 and hence the nuts 15, 16 by their engagement with cam portions 37c, 43 and 44. A method of determining the cam formation is described. The driving member 10 is supported in relation to a fixed abutment 12 by a roller thrust bearing 13 and carries at its opposite end a driving belt pulley 54.
Patent GB-1199808-A (GB)
Title: Reinforcement for Pneumatic Tires and the Like
IPC: B60C9/00
Filed: 1967-07-17
Abstract: 1,199,808. Pneumatic tyres. GOODYEAR TIRE & RUBBER CO. 17 July, 1967 [22 Aug., 1966], No. 32734/67. Heading B7C. [Also in Divisions B2 and D1] The carcass reinforcing plies 40, 42 and/or the breaker layers 44, 46 of a tyre may be formed from strips 12 coated with a rubber composition, each strip being of non-circular cross-section and comprising substantially untwisted continuous filaments adhesively joined together in parallel relationship. The filaments may be made of nylon, rayon, polyester, or fibreglass and may be adhesively joined together by means of a rubber-resorcinol-formaldehyde resin composition.
Patent GB-961865-A (GB)
Title: Sneak current suppressor in magnetic amplifiers
IPC: H03K3/45
Filed: 1961-09-12
Abstract: 961,865. Magnetic amplifiers. SPERRY RAND CORPORATION. Sept. 12, 1961 [Sept. 12, l960], No. 32751/61. Heading H3B. A device for controlling the transmission of a pulse to a load comprises a magnetizable core 1, a first coil 2 on the core connected between the pulse source 6 and the load 9, a D.C. energized second coil 3 on the core to control the initial magnetization of the core, a third coil 4 on the core connected to the pulse source and arranged to induce in the first coil a voltage opposing the pulse voltage and preventing transmission of a pulse to the load, and a coil 5 for selectively cancelling out the initial magnetization of the core, whereby a pulse is transmitted to the load. Load 9 may be a drive line of a magnetic memory matrix. The core is normally biased to negative saturation by winding 3. When a positive pulse arrives from source 6 diodes 10 and 7 tend to conduct. The current through coil 4, which is limited by a limiting circuit comprising diode 12 and resistor 13, tends to saturate the core positively and the change induces a current in winding 2 which opposes the clock pulse and exceeds it, as winding 2 has more turns than winding 4, thereby blocking rectifier 7. When a negative pulse arrives the core starts to resaturate negatively but the voltages induced in windings 2 and 4 are maintained below the value of the clock pulse by clamp diode 14 and clamp voltage - V1 connected to winding 4, when a current is to be transmitted to the load, winding 5 is pulsed to overcome the bias and drives the core to positive saturation immediately prior to the arrival of a positive clock pulse. The current is limited by regulator 8, preferably of the magnetic type.
Patent GB-970284-A (GB)
Title: Improvements in or relating to a method and an apparatus for cooling continuous casting material
IPC: B21B45/02
Filed: 1962-08-27
Abstract: 970,284. Spray producers. CONCAST A.G. Aug. 27, 1962 [Sept. 13, 1961], No. 32777/62. Heading B2F. [Also in Division B3] A flat stream nozzle 5 comprises a boring 6 with a bore-shaped end 7 and a slot 8 with slopings 9.