baber/WOPTO huggingface dataset:
Patent GB-920024-A (GB)
Title: A machine for making tufted fabrics
IPC: D05C15/22
Filed: 1961-12-27
Abstract: 920,024. Tufting-machines. SINGERCOBBLE Inc. Dec. 27, 1961 [April 13, 1961], No. 46213/61. Class 112. A tufting-machine is provided with a looper book having two bills on which high and low tuft loops are formed respectively. The hook comprises a lower bill 49 having a print 50, and an upper bill 53 having a down-turned point 55 which extends beyond the point 50, the points being opposed to the direction of work feed. A U-shaped leaf spring 57 has its lower limb secured by pins 58 to the looper shank, and its upper limb is formed with an intermediate bulged portion 60, a transversely elongated portion 61 the upper end of which resiliently engages the point 50, and an outwardly flared free portion 62. The needle 20 engages portion 62 to separate portion 61 from the tip 50, and thereafter moves freely within the bulged portion 60. The yarn 25 is fed to the needle selectively at either one of two speeds by the means described in Specification 853,746. At the faster rate of feeding, the loops are formed on the lower bill 49 and are severed by the knife 63 at the looper throat 48 to form high tufts 68. When the yarn is fed at the lower rate, the loop 67 previously formed on the lower bill 49 is drawn by the increased yarn tension past the spring portion 61 and print 50 to be caught by the point 55 of the upper bill 53. Said loop is subsequently severed at the looper throat 54 to form a low tuft 69. Specifications 735,019 and 920,023 also are referred to.
Patent GB-1091337-A (GB)
Title: Nuclear reactor and fuel assembly therefor
IPC: G21C1/00
Filed: 1965-11-02
Abstract: 1,091,337. Fuel elements. COMBUSTION ENGINEERING Inc. Nov. 2, 1965 [Dec. 3, 1964], No. 46404/65. Heading G6C. A fuel assembly comprises elongated parallel fuel rods retained in evenly spaced relation and arranged in two groups of parallel rows at right angles to one another, each row extending across the entire width of the assembly with the exception of one outer row which extends only a small portion of the way across the width of the assembly there being the same number of rows in each direction with the exception of the partial row. Groups of four of these fuel assemblies can be arranged so as to form a central cruciform control rod passage. A reactor core can be built up from such fuel assemblies, each being of the same configuration and dimensions, the fuel assemblies throughout the core being interchanged and replaced as desired and it being necessary to have in inventory only one specific design of fuel assembly.
Patent GB-1242246-A (GB)
Title: A centrifugal pump for liquids containing solid particles
IPC: F16J15/34
Filed: 1968-10-02
Abstract: 1,242,246. Seals. KONINKLIJKE NEDERLANDSCHE MACHINEFABRIK N.V. 2 Oct., 1968 [6 Oct., 1967], No. 46761/68. Heading F2B. A centrifugal pump comprises a " pump back " seal arrangement between the surfaces of the impeller hub 18 and pump housing 19, one of the surfaces being plain while the other is provided with a screwthread of a depth which varies progressively so that liquids containing solid particles entering the " pump back " seal from the direction of the impeller have the solid particles separated from the liquid and pumped in a direction back towards the impeller. The arrangement prevents solid particles from entering the space 12 for a seal ring 6 which is sealed to the hub by an O-ring 16 and urged by springs 17 into contact with a stationary seal ring 7; sealing liquid at a pressure greater than that in the space 12 is fed to the faces of this seal through an inlet 11 and is discharged through an outlet 13. In the case of suspensions being pumped which contain particles heavier than the liquid, the screwthread should be provided on the surface of the housing as shown so that under centrifugal action the particles move outwardly into the screwthread and in the ease of suspensions in which the particles are lighter than the liquid, the screwthread should be provided on the surface of the hub.
Patent GB-1037650-A (GB)
Title: Improvements in and relating to the preparation of methylene-2 propanediol-1,3 and its derivatives
IPC: C07C33/035
Filed: 1963-11-25
Abstract: Methylene-2-propanediol-1,3 and its derivatives ar prepared by (a) reacting in a DielsAlder reaction an a ,b -ethylenic aldehyde of formula <FORM:1037650/C2/1> in which R1 and R2 are hydrogen or alkyl, aromatic hydrocarbon or heterocyclic groups, with a dienic compound; (b) subjecting the cyclic aldehyde so obtained to the action of formaldehyde in alkaline medium to produce the corresponding gem-dimethylolated derivative by an aldolization reaction followed by a Cannizzaro reaction; and (c) decomposing the product of (b) by heating to form the ethylenic diol and regenerating the dienic compound employed in the first stage.  Suitable dienic compounds are, for example, butadiene, isoprene, piperylene, dimethyl - 2,3 - butadiene, cyclopentadiene, cyclohexadiene-1,3, furan, anthracene and naphthalene.  Suitable ethylenic aldehydes are, for example, acrolein, crotonaldehyde, penten - 2 - al, methyl - 3 - crotonaldehyde, hexen-2-al, hexadien-2,4-al, hepten-2-al, cinnamic aldehyde and b -furylacrolein.  In the examples: (a) methylene-2-propane diol-1,3 is prepared from acrolein and anthracene or cyclopentadiene and (b) ethylidine-2-propanediol-1,3 is prepared from cyclopentadiene and crotonaldehyde.
Patent GB-1048609-A (GB)
Title: Improved catalysts
Inventor: WALKER DAVID MALCOLM
IPC: B01J31/12
Filed: 1964-11-16
Abstract: Saturated aldehydes, for example n-butyraldehyde chloral or acetaldehyde may be polymerized using as initiator a composition formed by adding to an alkyl of a Group Ia, II or IIIb metal a compound selected from ketones, tertiary amines, and compounds containing at least one -NH, -OH or -SH group, the rate of addition of the compound to the alkyl being not greater than one gm. mole per hour. If the compound has N-active hydrogen atoms it is used in proportion 1/N moles per mole of alkyl.  The polymerization is carried out at a temperature in the range - 100 DEG  C. to - 30 DEG C., preferably in an inert solvent, for example hexane, using between 0.001 and 5 mole per cent of initiator, based on the aldehyde.  The aldehyde polymers have a high crystalline content.ALSO:A catalyst composition suitable for aldehyde polymerization is formed by adding to an alkyl of a metal of Groups 1a, II or IIIb a compound selected from ketones, tertiary amines, and compounds containing at least one -NH, -OH or -SH group, the rate of addition of the compound to the alkyl being not greater than one gm mole per hour.  The metal may be Na, K, Zn, Al.  The compound may be water, an alcohol, thiol, ketone, carboxylic acid or amine (examples are given).  If the compound has N active hydrogen atoms, it may be used in proportion 1/N moles compound per mole of alkyl.  Examples relate to (1) aluminium triethyl-ethanol (2) aluminium triethyl-acetic acid (3) aluminium triethyl-dimethylamine (4) aluminium triethyl-water (5) aluminium triethyl-methanol (6) aluminium triethyl-acetone (7) zinc diethyl-water.
Patent GB-1017705-A (GB)
Title: Carbon black rubber masterbatches
IPC: C08L21/00
Filed: 1963-11-26
Abstract: Polymer - carbon black compositions are formed by a process which comprises forming a solution of a polymer in an organic solvent, introducing a carbon black pelletized with an oleaginous material in a liquid state, agitating the carbon black pellets in the solvent thereby disintegrating the carbon black pellets by dissolving the oleaginous material in the organic solvent and dispersing the carbon black throughout the polymer, and recovering a polymer-carbon black masterbatch.  The process is particularly applicable to those polymers produced by a solution process, e.g. polybutadiene, polyisoprene, butadiene-styrene copolymer, ethylene-propylene copolymer, ethylene-propylene - 11 - ethyl - 1,11 - tridecadiene copolymer, and isobutylene-piperylene copolymer (butyl rubber).  The process is also applicable to solutions of natural rubber and SBR. The oleaginous material may be an oil, liquid polymer, asphalt, vegetable fat or oil, or a resinous material such as rosin in solution in mineral oil.  In a modification, the pelletized carbon black may be mixed with the solvent and added to the polymer solution.  Alternatively the pellets of carbon black may be mixed with a liquid that is a solvent for the oleaginous material but an anti-solvent for the polymer, thereafter the dispersion is added to the polymer solution thereby coagulating the mixture of carbon black and polymer.
Patent GB-1185580-A (GB)
Title: Improvements in or relating to Electronic Flash Apparatus
IPC: G03B15/05
Filed: 1968-10-03
Abstract: 1,185,580. Capacitor circuits for a space discharge apparatus. ROBERT BOSCH ELEKTRONIK und PHOTOKINO G.m.b.H. 3 Oct., 1968 [23 April, 1968], No. 46883/68. Heading H2H. [Also in Divisions G1 and G2] The control circuit for photographic flash apparatus of Specification 1,185,579 is modified in that the D.C. operating voltage for the photoelectric integrator is derived from the flash tube firing capacitor which on firing shares its charge with a larger capacitor to provide the D.C. voltage.
Patent GB-1041257-A (GB)
Title: Plasma-jet torch
IPC: H05H1/34
Filed: 1963-11-27
Abstract: 1,041,257. Plasma Jet-torches. CORNING GLASS WORKS. Nov. 27, 1963 [Dec. 5, 1962], No. 46909/63. Heading H5H. A plasma jet torch comprises a fluid-cooled nozzle 12 with a jet aperture 16 and enclosing an arc chamber 14. A non-consumable central electrode 24 mounted on a cylinder 26, to which cooling fluid is supplied at 28 and exhausted at 30, slides in an insulating liner 34 in the nozzle. The arc is struck by pressing the central electrode forward from the operating position as shown, against a return spring 42. For applying coatings, a powder/gas suspension may be supplied through tubes 52, 54.
Patent GB-1073384-A (GB)
Title: Improvements in or relating to the manufacture of steroids
IPC: A61K31/573
Filed: 1964-11-18
Abstract: The invention comprises 16a -bromo-3b ,17a , 21 - trihydroxy - 5 - pregnen - 20 - one 3,21 - di-acetate, 3a  - acetoxy - 16a  - bromo - 17a  - hydroxypregnane - 11,20 - dione, 3b  - hydroxy - 16a  - bromo - 17a  - hydroxy - 4 - pregnene-11,20 - dione, 16a  - bromo - 17a  - hydroxy - 21- acetoxy - 4 - pregnene - 3,20 - dione, 16a  - bromo - 17a  - hydroxy - 21 - acetoxy - 4 - pregnene - 3,11,20 - trione, 16a - bromo - 17a  - hydroxy - 21 - acetoxy - 4,9(11) - pregnadiene-3,20 - dione, 3a  - acetoxy - 16a  - iodo - 17a  hydroxypregnane - 11,20 - dione, 3b  - hydroxy-16a  - iodo - 17a  - hydroxy - 4 - pregnene - 11,20- dione, 16a  - iodo - 17a  - hydroxy - 21 - acetoxy-4 - pregnene - 3,20 - dione, 16a  - iodo - 17a - hydroxy - 21 - acetoxy - 4 - pregnene - 3,11,20-trione and 16a  - iodo - 17#x - hydroxy - 21 - acetoxy - 4,9(11) - pregnadiene - 3,20 - dione, and a process for the production of a 16a - bromo - or 16a  - iodo - 17a  - hydroxy - pregnane which comprises treating a 16b  - bromo or 16b  - iodo - 17a - hydroxypregnane with an active nickel catalyst, e.g. Raney nickel.
Patent GB-1059660-A (GB)
Title: Process for the production of carbamic acid derivatives having a tetrahydro-oxazine structure
IPC: C07D265/14
Filed: 1964-11-18
Abstract: Carbamic acid derivatives of the general formula <FORM:1059660/C2/1> wherein, R1, R2, R3 and R4 stand for alkyl, aralkyl or aryl residues, or R1 and R2, or R3 an R4 may jointly represent a tetra- or pentamethylene chain, R5 represents a methyl residue or a hydrogen atom and R6 represents an alkyl, aralkyl or aryl residue, are prepared by reacting a 1,3-amino-propanol of general formula <FORM:1059660/C2/2> with a ketone of the general formula R3.CO.R4, with water separation, and further reacting the tetrahydro-oxazine thus formed with a chloroformic acid ester of the general formula Cl-CO-O-R6 in the presence of a basic HCl acceptor.
Patent GB-1235954-A (GB)
Title: A travelling grate for heat-treating solids
Inventor: VEITH WERNER
IPC: C08F26/02
Filed: 1969-09-24
Abstract: 1,235,954. Sintering apparatus. METALLGESELLSCHAFT A.G. 24 Sept., 1969 [17 Oct., 1968], No. 47108/69. Heading F4B. In updraught sintering apparatus having a travelling grate which passes over windboxes, a sealing arrangement between the pallets of the grate and the windboxes comprises troughshaped boxes 11 secured to either side 3 of the pallets and two parallel laterally spaced apart sealing strips 14 which are detachably secured to a centre plate 15 by countersunk screws 16, the sealing strips 14 being forced against bars 18 by springs 17 acting through the centre plate 15, the bars 18 being secured to the windbox carriers 19.
Patent GB-1015468-A (GB)
Title: Improvements in or relating to hall effect elements
IPC: G11B5/37
Filed: 1963-12-02
Abstract: 1,015,468. Hall-plate heads. AMPEX CORPORATION. Dec. 2, 1963 [Dec. 3, 1962], No. 47471/63. Heading G5R. [Also in Division H1] A Hall effect transducer comprises two ferrite blocks 18 which are lapped and polished and joined to a square Hall plate 10 of indium antimonide using an epoxy resin. The bevelled corners 22 of blocks 18 enable connections 12 to be made to the corners of the plate 10 by soldering or by thermo-compression bonding using indium or gold. A glass gap (not shown) is provided between blocks 18 to prevent chipping of the ferrite material at the areas adjacent plate 10 traversed by the magnetic tape 20 during operation.
Patent GB-985624-A (GB)
Title: Improved fluid control valve
IPC: F15B13/043
Filed: 1962-12-18
Abstract: 985,624. Valves. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 18, 1962 [Dec. 28, 1961], No. 47706/62. Heading F2V. A valve member 19 controlling the connection of an outlet 18 with an inlet 16 or an exhaust 17 is movable by pressure difference in chambers 34, 35 fed through restrictions 32, 33 and having outlets controlled by auxiliary valve members 21, 22 mounted on a common rod 20 passing through the valve member 19. The apparatus is operable cyclically, and the outlet 18 may be connected to a piston adder. Each cycle commences with a clockwise movement of a lever 25 to set the auxiliary valve members in the positions shown, after which a signal, consisting of a pulse or the absence of a pulse, is applied to an electromagnet 24, and this is followed by a timed pressure pulse in the conduit 31. If the electromagnet has been energized, the pressure pulse acting on the auxiliary valve member 22 completes the movement of the auxiliary valve members initiated by the electromagnet and moves the valve member 19 to the left. The lever 25 then returns the auxiliary valve members for the next cycle in which, if the electromagnet is not energized, the pressure pulse returns the valve member 19 to the right, or if the electromagnet is energized, the valve member 19 remains in the left-hand position.
Patent GB-1319267-A (GB)
Title: Sensitive silver halide photographic materials
IPC: G03C1/34
Filed: 1970-10-08
Abstract: 1319267 Thiazolo [5,4-c] or [4, 5-c] isoquinolines in photographic silver halide materials EASTMAN KODAK CO 8 Oct 1970 [8 Oct 1969] 47916/70 Heading G2C  A sensitive photographic material comprises a support bearing a photographic silver halide layer and contains in that layer, or in a layer adjacent thereto, a thiazolo [5,4-c] or [4, 5-c] isoquinoline having at the 2-position H, halogen, OH, mercapto or amino, the isoquinoline portion of the molecule being unsubstituted or substituted. The isoquinoline significantly enhances the stability of the photographic silver halide with regard to the growth of fog without seriously decreasing its photographic sensitivity.
Patent GB-987839-A (GB)
Title: A bladed rotor for an axial fluid flow machine
Inventor: BILL ARTHUR
IPC: F01D5/30
Filed: 1963-12-04
Abstract: 987,839. Turbine and compressor blade mounting; gas turbine rotor cooling. ROLLSROYCE Ltd. Dec. 4, 1963, No. 48005/63. Headings FIG and FIT, [Also in Division B7] A bladed turbine or like axial flow machine rotor comprises blades radially mounted on a mounting member, each blade having at least two axially spaced radially extending root portions axially aligned with and attached to at least two axially spaced radially extending flanges provided on the mounting member. An axial flow compressor rotor blades 13 is mounted by axially spaced root portions 30, 31 engaging in corresponding dove tail or fir-tree slots 24, 25 in spaced flanges 22, 23 on the rotor disc 20. The blade is retained axially by a segmental annular plate 32, Fig. 2, or, in a modification, Fig. 3, by a metal strip 38 extending through opposite slots 24, 25 and bent over at 36, 37. The blade 13 or rotor 20 may be made of fibre reinforced synthetic resin material. In the case of a turbine blade, cooling air may be supplied to the channel 40 and segmental plates 32 provided on either side of the blade to prevent cooling air leakage.
Patent GB-960756-A (GB)
Title: Novel unsaturated alcohols and a process for the manufacture thereof
IPC: C07C33/025
Filed: 1962-12-20
Abstract: The invention comprises compounds of the general formula: <FORM:0960756/C1/1> in which the broken lines denote optional bonds, R1 is a phenyl group or an alkyl group containing 2-4 carbon atoms in the case of trienes in which the optional methyl group is absent and/or otherwise an alkyl group containing 1-4 carbon atoms, and R2 is a methyl group or together with R1 a pentamethylene group.  They are prepared by halogenating an alcohol of formula: <FORM:0960756/C1/2> by known methods to replace the OH group by a halogen atom with allyl rearrangement, converting the product by treatment with an inorganic salt of an alkane carboxylic acid containing 1-5 carbon atoms into a carboxylic ester and hydrolyzing the ester with an aqueous alcoholic solution of an inorganic base. Preferred tertiary alcohol starting materials are 3, 7, 11-trimethyl-tridecatrien-(1, 6, 10)-ol-13), 3, 7, 10, 11-tetramethyl-dodcecatrien-(1, 6, 10)-ol-(3) and 3, 7, 11-trimethyl-dodcecadien-(1,6)-ol-(3). The halogenation may be carried out by treating the tertiary alcohol with concentrated aqueous hydrochloric or hydrobromic acid, phosphorus tribromide or anhydrous hydrogen chloride or bromide.  The halogenation is accompanied by an allyl rearrangement resulting in the formation of 1-halo compounds.ALSO:Alcohols of general formula <FORM:0960756/A5-A6/1> in which the broken lines denote optional bonds, R1 is a phenyl group or a C2-C4 alkyl group in the case of trienes in which the optional methyl group is absent but otherwise a C1-C4 alkyl group and R2 is a methyl group or, together with R1 a pentamethylene group, may be used as insecticidal ingredients in mixtures for combating insects.  They may be used in admixture with other insecticides and in emulsions, suspension, dusts, solutions or aerosol sprays.
Patent GB-959642-A (GB)
Title: Improvements in or relating to transistor logic circuits
Inventor: REES FREDERICK HENRY
IPC: H03K17/0422
Filed: 1962-12-20
Abstract: 959,642. Transistor switching circuits. STANDARD TELEPHONES & CABLES Ltd. Dec. 20, 1962, No. 48147/62. Heading H3T. A transistor amplifier comprises two or more stages, each except the last T 3  having its emitter coupled to the base of the next, all the collectors being connected via a common impedance R 1  to a common collector supply V 1  and the final collector being connected through a load L such as a ferrite matrix, to a higher voltage source and also to the common point through a diode such that the collector voltage of the final stage is not limited by the common voltage supply whereas the earlier collectors are. Thus when an input signal is applied to the high frequency type input transistor 1 it saturates causing the other transistors to conduct, but not to saturate, and the load to be energized. The diode in the collector circuit of T 3  isolates the collector from the previous collector while diodes Dn prevents the base-collector voltage of T 3  becoming so low that T 3  saturates. D 1  serves a similar purpose for T 1 . Transistor T 2  or the auxiliary diodes may be omitted (Figs. 1 and 3, not shown), and transistors of the opposite conductivity type may be used (Fig. 4, not shown).
Patent GB-1527096-A (GB)
Title: Segmented screen body for material classification and the like
IPC: B07B1/46
Filed: 1975-11-24
Abstract: 1527096 Screens DUREX PRODUCTS INC 24 Nov 1975 48190/75 Heading B2H A screen composed of T-shaped elements of elastomeric material having bores extending through the stem and head of the T, and wires passing through aligned bores in adjacent elements to connect them in staggered rows to form an apertured body. The screen of Fig. 2 is composed largely of the elements T, Fig. 3, which may be injection moulded or die-cut from sheet, and made of styro-butadiene, carboxylated nitriles, poly-urethane, or natural or synthetic rubber. The bores 11, 12 may be of slightly smaller diameter than the wires W. The sides of the screen are composed of rows of L-shaped elements L-1 and L-2, cut from T-shaped elements. The ends are composed of special elements B and U. The ends of the wires are formed into hooks 19, Fig. 1, by which the screen is stretched over bumper bars Z between arms 19a adjusted by tensioning bolts 19b.
Patent GB-1391189-A (GB)
Title: Control of dust during discharge of materials into hoppers
IPC: B65G69/18
Filed: 1972-10-19
Abstract: 1391189 Confining and removing dust in industrial operations IMPERIAL CHEMICAL INDUSTRIES Ltd 5 Oct 1973 [19 Oct 1972] 480204/72 Heading F4X A hopper 1 through which particulate, "dusty", bulk materials are discharged (e.g. when unloading a railway wagon or ship's hold), has at its upper end a dust control means 3 for confining and removing the dust arising during the discharging operation. The dust control means comprises a substantially horizontal grid 4 which is surrounded by one or more chambers 5 (shown as of generally triangular cross-section) into which the dust is drawn (e.g. by a fan, not shown) via openings 6 above the grid 4 and openings 7 below the grid. Dust extraction from the chamber(s) 5 is via one or more critical velocity slots 8 and a dust extraction system 9. The slot(s) 8 can be altered in size allowing the air and dust removed to be so controlled (e.g. according to the type of material being discharged) as to allow most of it to settle on an inclined surface of the chamber(s) 5 and to slide back into the hopper without forming a dust cloud. Above the control means 3 may be provided a hood 2 having one or more openings therein sufficient only to allow the insertion and withdrawal of a crane grab serving the hopper. These openings may be provided with an air curtain. The hood also has critical velocity slots 8 (similar to those in the control means 3) connected to the dust extraction system 9.