baber/WOPTO huggingface dataset:
Patent GB-1136982-A (GB)
Title: Improvements in or relating to electrical switch manufacturing methods
Inventor: DAVIES GWYN
IPC: H01R43/20
Filed: 1965-08-27
Abstract: 1,136,982. Moulding switch bodies around contact elements. AB ELECTRONIC COMPONENTS Ltd. 19 Aug., 1966 [27 Aug., 1965], No. 36854/65. Heading B5A. In an electrical switch element of the type wherein fixed contact members 2 pass through a resin body 1 into which they are moulded, the retention of members 2, e.g. wires of 0.040 inch diameter, in the body 1 is improved by deformation of the members 2, e.g. by displacement of the wires by 0.007th inch, after introduction of the resin during the moulding process, by means of pins 4 which are reciprocably mounted in the upper 5 of a pair of mould cavity defining parts 5, 6 and which pins also define holes 3 in the body 1, the members 2 being subsequently cropped to the required length on the exterior of the moulding. The moulding process is effected on a continuous basis (Fig. 4, not shown), whereby two sets of wires are drawn from a pair of wirefeed mechanisms (8) in an intermittent manner through a moulding tool (7) which simultaneously produces ten switch bodies along each set of contact wires and whereafter flash (9) between each set of wires is removed in a deflashing tool (10) prior to cropping at a tool (12) into individual switch bodies; the difference in the feed rate between the moulding tool (7) and cropping tool (12) produces a zone of variable length which is maintained in tension by a pivoted pulley device (14).
Patent GB-1260851-A (GB)
Title: Gas electrodes
Inventor: CLARK JAMES TYRELL
IPC: H01M4/88
Filed: 1968-08-02
Abstract: 1,260,851. Electrodes. JOSEPH LUCAS (INDUSTRIES) Ltd. 13 May, 1969 [21 May, 1968; 2 Aug., 1968], Nos. 24154/68 and 36973/68. Heading H1B. Gas electrodes are made by coating at least one side of a porous non-conductive substrate with a metal to form a film on the substrate, covering the film with coated particles inert to the electrolyte, each particle including a refractory material coated with a metal, and bonding the coated particles to each other and to the film. As described a clean porous P.V.C. sheet is plated with Ni, pasting the sheet with Ni-coated Al 2 O 3  particles and Ni-plating the sheet again to remove the oxide film on the particles so that the nickel coating cold welds to join the particles to each other and to the film. Pd is then electroplated on to the sheet to act as catalyst. In a modification the Ni-coated Al 2 O 3  particles are coated with Pd before being applied to the coated sheet with a PTFE emulsion to act as binder. The electrodes are useful in fuel cells and metal-air cells.
Patent GB-842086-A (GB)
Title: Improvements in and relating to cathode ray tube screens
IPC: H01J9/14
Filed: 1955-12-23
Abstract: 842,086. Cathode-ray tubes. CHARLOTTE, H. F. Dec. 21, 1956 [Dec. 23, 1955], No. 36996/55. Class 39(1). A cathode-ray tube screen which incorporates a row of insulated conductors passing from one of its faces through to the other face, is made by coating a grid of wires with finely powdered glass, fusing two glass members 20, 21 brought up on opposite sides of the grid edge-to-edge, and cutting the grid wires to remove the frame. The screen is then ground and polished. The screen may be annealed before or after the grinding operation, or both. The grid may be produced by winding wire round a pair of rectangular frames placed back-to-back. The wire is soldered to the edges of the frames and cut between the frames. The frames are then separated to produce two grids, each suitable for a screen. The grids are coated with finely powdered glass by spraying with a suspension of powdered glass in distilled water, and then drying.
Patent GB-1017248-A (GB)
Title: Improvements in or relating to lasers
Inventor: SMITH JAMES
IPC: H01S3/038
Filed: 1963-09-23
Abstract: 1,017,248. Lasers. MULLARD Ltd. July 27, 1964 [Sept. 23, 1963], No. 37322/63. Heading H3B. [Also in Division H1] In a cold-cathode glow-discharge laser the laser beam is produced along a path extending into the region occupied, in operation, by the negative glow portion of the discharge. A helium-neon gaseous mixture is enclosed by an envelope 1 having end windows 6 arranged at the Brewster angle, the envelope also enclosing a tubular cylindrical cathode 2 and a number of anode rods 3 extending through the glass envelope in a gas-tight manner. The anodes 3 are arranged adjacent apertures in the cathode and are provided with electrically conducting discs to dissipate the heat generated during the discharge, the latter being produced by a D.C. source of 150 v. connected across the anodes and cathode causing a negative glow discharge to form within the cathode tube in a plurality of paths. Spherical, cylindrical or plane mirrors are placed at each end of the envelope to form a resonant cavity for the laser and arranged so that the laser beam passes through the negative glow region of the discharge. In the arrangement of Fig. 2, a plurality of tubular cathodes 2 are arranged in line, each cathode being provided at each end with an annular disc-shaped anode 7, Fig. 3 (not shown). This arrangement provides for individual control of the cathode sections so that each section may be used independently to switch or amplitude modulate the laser beam. In the arrangement of Fig. 4 (not shown), the anodes are in rod form as in Fig. 1 and co-operate with a plurality of tubular cathodes similar to Fig. 2 which cathodes may be provided with apertures. Barrier electrodes of annular form, suitably biased, are arranged between the cathodes to prevent discharges occurring between the different sections. The cathode plate 13 may be flat, Fig. 6, in which case the negative glow is adjacent the upper surface of the plate and the laser beam travels along the top of the cathode and is preferably of rectangular crosssection, produced by cylindrical concave mirrors. The cathode plate can be in the form of a number of separate sheets arranged in succession with barrier electrodes in between. The gas ratios of the helium and neon mixture may vary from 10 : 1 to 1000 : 1 at total pressures from 3 to 35 mm. of Hg and also up to 80 mm. of Hg. The D.C. power supply may be replaced by A.C. which is sinusoidal or pulsed and the output may be continuous or pulsed.
Patent GB-959412-A (GB)
Title: Mono- or di-esters of citric acid
IPC: C09K23/00
Filed: 1961-10-18
Abstract: Mono- and di-esters of citric acid are prepared by esterification of the acid with branched chain aliphatic alcohols containing at least 9 carbon atoms.  Examples describe the preparation of diisotridecylcitrate, diisononylcitrate, diisodecyl citrate and monoisotridecylcitrate.  The compounds or their salts, for example, with hydrazine, hydroxylamine, ammonia and alkalies substituted hydrazines, hydroxyquinoline and hydroxyquinaldine may be used as emulsifying agents for the preparation of stable and storable emulsions of fully esterified citric acid.  The stable emulsions are used to treat paper, textiles or as plasticisers for synthetic resins.ALSO:Mono- or di-esters of citric acid and branched chain aliphatic alchols containing at least 9 carbon atoms, or salts thereof are used as emulsifying agents for fully esterified citric acid ester emulsions which are used for processing textiles, paper and cardboard.  In examples, a dyed satin viscose rayon material is treated in a bath with an aqueous emulsion of acetyltributyl citrate, diisotrindecyl citrate and sodium hydroxide containing melamine resin, magnesium chloride and the sodium salt of dodecyl-phenyl sulphonic acid, impregnated in a foulard, dried and condensed at 1550 DEG C; an aqueous emulsion of acetyltributyl and diisotridecyl citrates and sodium diisotridecyl citrate is added to a 4% bleached sulphite pulp which is homogeneously dispersed in a Hollander and the paper made therefrom is soft and flexible and suitable for packing foods or as wrapping paper.
Patent GB-1362494-A (GB)
Title: Device for selecting record supports in sheet form
IPC: G06K13/08
Filed: 1972-08-10
Abstract: 1362494 Feeding sheets PENTACON DRESDEN KAMERAUND KINOWERKE VEB 10 Aug 1972 37397/72 Heading B8R [Also in Division G4] Sheets are transported between a plurality of stations in a closed cycle by a plurality of suction heads such as 41 having a common rotatable drive. On rotation of a lifting ring 12 via pin coupling 16, 17 and drive ring 6, cam surfaces 13 lift pins 10 on the central shaft out of their respective slots 11 in a central ring 9 whereby the heads 41 can lift a sheet from the top of the pile at any station with which they are aligned, and raising of the central shaft causes engagement of a friction ring 8 with drive ring 6 so that the heads 41 are rotated to the next stations in the cycle at which point pins 10 drop into the next slots 11 and plates 6, 8 disengage. During the rotation of the heads 41, coupling 16, 17 is disengaged by lowering of the lifting ring 12 due to pin 14 sliding in the downwardly inclined portion of the slot in an outer ring 15. Vacuum is selectively applied to the heads 41 by way of a central bore 21 and flexible pipe 20 under the control of solenoid actuated valve slides 22.
Patent GB-844145-A (GB)
Title: Improvements relating to spring suspension compensating arrangements for vehicles
IPC: B60G21/10
Filed: 1958-11-20
Abstract: 844,145. Interacting road vehicle suspensions. DAIMLER-BENZ A.G. Nov. 20, 1958 [Nov. 26, 1957], No. 37409/58. Class 108(2). Each axle 10-13 of a vehicle is connected to a piston 15 operating in a hydraulic cylinder 21 having an abutment a for a spring 117 bearing on the vehicle frame 18. Each cylinder 21 is connected to a respective hydraulic ram device 34. All four rams of the devices 34 are rigid with a common crosshead 37 connected to a hydropneumatic spring 40. The respective cylinders 21 of the springs 18 at the front and rear on the same side of the vehicle are connected to opposite faces of a differential piston 30. The cylinders 21 of the springs 18, on the other side of the vehicle are connected to respective sides of a second differential piston 31 rigid with the piston 30. Each cylinder 21 has a shock absorber piston 19. The liquid connection to the cylinder 21 may be via the interior of the rod of the piston 19 (Fig. 2, not shown).
Patent GB-1195414-A (GB)
Title: Tetrahydropyran Derivative
Inventor: THOMPSON JAMES MCALLAN CORMACK
IPC: C07D309/14
Filed: 1967-08-15
Abstract: 1,195,414. 2 - Formamido - 6 - hydroxytetrahydropyran. IMPERIAL CHEMICAL INDUSTRIES Ltd. 6 Aug., 1968 [15 Aug., 1967], No. 37410/67. Heading C2C. The invention comprises 2-formamido-6- hydroxytetrahydropyran and the preparation thereof by reacting glutaraldehyde with formamide in the presence of a basic material providing an alkaline pH in the reaction mixture, preferably at room temperature, using aqueous sodium bicarbonate.
Patent GB-1213501-A (GB)
Title: Sewage agitator
Inventor: GROTZ WILHELM
IPC: A01C3/02
Filed: 1968-08-06
Abstract: 1,213,501. Agitator. W. GROTZ. 6 Aug., 1968 [11 Aug., 1967], No. 37441/68. Heading B1C. An agitator comprises a rotatable tube 20, Fig. 1, provided with hinged paddles 30 capable of being swung up or down on raising or lowering a member 46, Fig. 2, housed within the tube, thereby enabling the paddles to be inserted through a narrow opening 28. The member 46 is arranged to be non-rotatable with respect to tube 20 and is connected screwthreadedly to a rod 60 which is rotatable but not axially displaceable with respect to tube 20. On rotation of the tube and grasping of handle 35 to prevent rotation of the rod 60, member 46 is raised or lowered depending upon the direction of rotation of the tube. The latter may be raised or lowered by means of a rack and pinion mechanism, and may be tilted by means of a mechanical adjusting device 18 which operates upon the housing 16 in which the tube is rotatably mounted, the housing being pivotable about pivot 15.
Patent GB-1020779-A (GB)
Title: Improvements in or relating to the production of oxirane-substituted higher fatty acid derivatives
IPC: C08L27/04
Filed: 1963-09-24
Abstract: Oxirane-containing fatty acid esters with from 10 to 22 carbon atoms, are separated into high-oxirane content and low-oxirane content fractions by solvent extraction.  The solvent may be one that selectively dissolves either the high-oxirane compounds e.g. methanol, acetonitrile, acrylonitrile, acetone nitro methane, -ethane or -propane, and dimethyl sulphoxide or the less highly substituted compounds e.g. liquid, at. and unsaturated hydrocarbons such as ligroin and pat. ether.  Epoxidized glycerides include epoxidized tallow, soybean, linseed, tall, safflower, perilla, sperm, menhaden and cottonseed oils and the methyl ethyl, propyl and octyl esters are also mentioned. Examples describe the separation of epoxidized linseed oils, and epoxidized soybean oils of differing oxirane content.
Patent GB-1486825-A (GB)
Title: Electrical circuit interrupting devices
IPC: H01H33/22
Filed: 1975-05-19
Abstract: 1486825 Arc extinguishing ASSOCIATED ELECTRICAL INDUSTRIES Ltd 19 May 1975 [28 Aug 1974] 37614/74 Heading H1N An electrical circuit interrupter incorporates a fluid arc-extinguishing medium composed of petroleum oil together with an additive fluid consisting of at least one non-inflammable electronegative compound which is miscible with or soluble in the oil, the proportion of the additive fluid being at least 20% by weight of the total weight of the medium. Examples given of such compounds are halogenated derivatives of the lower aliphatic hydrocarbons such as carbon tetrachloride, trichlorofluoromethane and dichlorodifluoromethane, and halogenated cyclic hydrocarbons such as dichloro-benzotrifluoride. Sulpnur hexafluoride may also be used in closed pressurized circuit interrupters wherein it is added in such a proportion to give a vapour pressure not exeeding 100 p.s.i.g. The circuit interrupter may be open to atmosphere, when the additive fluid is in the liquid state, closed but unpressurized, or closed and pressurized, when the additive fluid may be either in the liquid or the gaseous state.
Patent GB-1507562-A (GB)
Title: Electrostatic induction charging adapter for a spray coating apparatus
IPC: B05B5/025
Filed: 1975-03-27
Abstract: 1507562 Electrostatic spraying apparatus PPG INDUSTRIES INC 27 March 1975 [1 April 1974] 37637/77 Divided out of 1507561 Heading B2F The subject-matter of this specification is generally the same as that described in parent Specification, but the claims are concerned with an electrostatic induction charging adapter for attachment to a spray apparatus.
Patent GB-849316-A (GB)
Title: Improvements in or relating to transistor amplifier circuits
Inventor: THOMSON DOUGLAS
IPC: H03F1/34
Filed: 1957-12-03
Abstract: 849,316. Transistor amplifying circuits. POSTMASTER GENERAL. Dec. 2, 1958 [Dec. 3, 1957], No. 37671/57. Class 40(6). An amplifier comprises a first transistor 1 in common collector connexion with its emitter directly connected to the base of a second transistor 2 in common emitter connexion. The collector current of the first is stabilized by a D.C. feedback path comprising resistors R2, 3, 4 and that of the second by emitter circuit resistors R1, 5 of which R5 provides overall D.C. feedback via resistor R4 and the input circuit of transistor 1. Input and output transformers 3, 5 respectively, are provided, an A.C. negative feedback path comprising resistor R6 and condenser C1 being connected between tapping points on the secondary of transformer 3 and primary of transformer 5, permitting of the overall gain and input and output impedances of the amplifier being adjusted to desired values.
Patent GB-933233-A (GB)
Title: Removal of ferric chloride from iron-aluminum chloride solutions
IPC: C22B3/28
Filed: 1959-11-06
Abstract: Ferric chloride and aluminium chloride are separated from solutions thereof, by contacting an aqueous solution of the two chlorides with a solution of an amine in a water-immiscible solvent to obtain an aqueous phase containing the aluminium chloride and an organic solvent phase containing the ferric chloride associated with the amine.  The organic solvent phase is then contacted with water to obtain an aqueous phase containing the ferric chloride, and an organic solvent phase containing the amine which is re-used.  The initial solution may also contain hydrochloric acid, which remains with the aluminium chloride in the aqueous phase.  The amine may be used in the form of the hydrochloride, preformed before contact with the solution of chlorides, or formed in situ by reaction with hydrochloric acid when present.  The amine may be dodecenyl-t-dodecylamine, n-dodecyl-t-dodecylamine, triisooctylamine, t-dodecylbenzyl-t-dodecylamine, didodecenyl-n-butylamine, or a mixture of amines of formula C18-22H37-45NH2 or of formula n-(C8H17-C10H21)3N. The organic solvent may be kerosene, benzene or toluene.  A long chain alcohol, e.g. decyl alcohol, tridecyl alcohol or a mixture of myristyl and lauryl alcohols, is included in the solution of amine to prevent the formation of two organic phases. Examples are given.
Patent GB-756839-A (GB)
Title: Improvements in or relating to copolymers of vinylidene cyanide with vinyl ethers
IPC: C08F22/34
Filed: 1954-12-31
Abstract: Copolymers of vinylidene cyanide and one or more vinyl ethers are made continuously or batchwise, by (1) mixing the monomers, when spontaneous polymerization occurs, (2) polymerizing a mixture of the monomers in a solvent or diluent in the presence of a polymerization catalyst, e.g. chlorobenzoyl peroxide.  The polymerization is preferably stopped before either of the monomers is consumed.  The polymerization ingredients may be added portionwise.  Vinyl ethers mentioned are methyl, ethyl, propyl, isopropyl, n-butyl, sec-butyl, butoxyethyl, amyl, hexyl, octyl, and decyl vinyl ethers.  The solvent or diluent may be benzene, toluene, methyl toluene, or trichlorobenzene.  The polymer may be made into films or fibres. Specifications 653,468, 654,957 and 673,722, [Group IV (b)], are referred to.
Patent GB-1145467-A (GB)
Title: Fastener
IPC: F16B21/18
Filed: 1967-08-17
Abstract: 1,145,467. Clips. FIRTH CLEVELAND FASTENINGS Ltd. 17 Aug., 1967 [19 Aug., 1966], No. 38030/67. Heading E2B. A fastener for pivotally connecting a rod 15 to an apertured member 17 comprises a sheet metal strip 1 bent to provide two arms 3, 4 shaped at their ends to engage in the aperture, the strip having a rod-receiving opening 2 so that when the fastener is secured to the member 17, the rod 15 may be inserted through the opening 2 in the strip 1 and through the aperture 18 in the member 17. As shown the ends 5, 6 of the strip are bent outwardly to engage the underside of the bar 17. In other arrangements Figs. 7 and 8 (not shown) the opening 2 in the strip is modified to accommodate a straight rod and an angled rod respectively.
Patent GB-1485871-A (GB)
Title: Printing press and ink supply system therefor
IPC: B41F31/30
Filed: 1974-08-30
Abstract: 1485871 Adjustable inking apparatus MONARCH MARKING SYSTEMS Inc 30 Aug 1974 [31 Oct 1973] 38066/74 Heading B6C An inking unit which is adjustably positioned between the sidewalls of a printing machine comprises a distributing roller and a forme roller together with an ink supply device to the nip between the rollers and a container extending under the rollers the supports for the various rollers being integral in the unit, a first adjustment moving the ink distributing roller relative to the forme roller and a second adjustment altering the vertical position of the unit to change the relationship between the forme roller and the printing cylinder. The invention is particularly applicable to a label printer, Fig. 1 (not shown), including a printing cylinder 24, forme roller 60 and distributor roller 80 which together with container 100 and cover 42 form the unit, Fig. 2. Ink is fed through pipe 112 to nozzle 110, the surplus passing through outlet 104 to a recirculation system (115), Figs. 1 and 9 (not shown), Adjusting screws 49 allow for movement of the unit with respect to fixed support 44. The rollers 60, 80 are geared to the main drive, while each end of the distributor roller 80 can be adjusted with respect to roller 60 by means of screws 96, Fig. 6, co-operating with sliding plates 72 carrying the journals 78 of roller 80, the plates sliding at an angle to the vertical in recesses 71 formed in brackets (52, 54), Fig. 3 (not shown) which are part of the adiustable unit.
Patent GB-812044-A (GB)
Title: 5, 6-dihydro-1, 4-oxazine-2-ones
Filed: 1957-12-09
Abstract: The invention comprises 5,6-dihydro-1,4-oxazine-2-ones of formula <FORM:0812044/IV (b)/1> wherein R, R1, R11 and R111 represent hydrogen, alkyl, aralkyl or aryl radicals and, in the case of alkyl radicals, two of them may be carbocyclically linked inter se, and X is an alkyl, cycloalkyl or aryl radical or a 2-oxo-alkyl or cycloalkyl radical of formula <FORM:0812044/IV (b)/2> wherein Z is an alkyl, alkoxy or aryl radical and R1111 is hydrogen or an alkyl, aralkyl or aryl radical and wherein Z and R1111 may be cyclically linked to one another.  They are prepared by condensing an amino alcohol of formula <FORM:0812044/IV (b)/3> with an a -ketocarboxylic acid ester X.CO.COOY wherein Y represents C1-4 alkyl.  Specified amino alcohols are ethanolamine, 2-amino-butan - 1 - ol, cis - and trans - 2 - aminocyclohexan-1-ol, cis- and trans-2-aminocyclopentan1 - ol, 1 - phenyl - 2 - aminoethan - 1 - ol, 2-phenyl - 3 - aminopropan - 2 - ol and similar compounds which may be further substituted in the aryl radicals with halogen atoms, nitro, hydroxy, C1-4 alkyl, C1-4 alkoxy, C1-7 acyloxy or C1-7 acylamino radicals. Specified keto-esters are methyl and ethyl pyroracemate, cyclohexan - 1 - one - 2 - oxalo ethyl ester, ethyl phenylglyoxalate, ethylacetylpyroracemate and methyl and ethyl oxalacetates.  The reaction may be exothermic or heating, e.g. to 80-170 DEG  C. may be required.  Solvents may be used, e.g. alcohols or liquid hydrocarbons.  When carrying out the reaction with a -ketocarboxylic acid esters of formula Z-CO-CH2-CO-COOY, the 5,6-dihydro-1,4-oxazoline-2-one derivatives thus obtained are present in the tautomeric morpholone form (infra-red spectra).  The dihydro-oxazolone products may be hydrogenated under standard conditions to the corresponding saturated morpholones.  In examples: (1) ethanolamine is reacted with oxalacetic ester to give 2-oxo-5,6-dihydro-1,4-oxazine-3-acetic acid ethyl ester; (2) 2-aminobutan-1-ol is reacted with phenylglyoxylic acid ethyl ester to give 3-phenyl-5-ethyl-2-oxo-5,6-dihydro-1,4-oxazine together with the phenylglyoxylic acid amide of 2-aminobutan-1-ol; (3) cis- and (4) trans-2-aminocyclohexan-1-ol are reacted with phenylglyoxylic acid ester to give cis- and trans-3-phenyl-(5,6) cyclohexane-2-oxo-1,4-oxazine respectively.
Patent GB-1417578-A (GB)
Title: Rotary hydraulic machines
IPC: F03C2/30
Filed: 1972-08-17
Abstract: 1417578 Rotary positive-displacement devices G E E WARDER 15 Aug 1973 [17 Aug 1972] 38339/72 Addition to 1299181 Heading F1F The main invention is improved or modified in that the vanes 9 .. 12 engage with a cam 19 in the rotor 4 and slide axially in a stator 1, abutments 5 being fixed by e.g. dowels 20, to the rotor. The device may be adapted to drive a rock-boring tool. Inlet and outlet ports 6, 7 communicate with passages 13 .. 16 for the working fluid e.g. "mud". The stator may comprise segments held together by a corresponding length of drill pipe and secured by a screw 22, the pipe having screwthreads at each end, as shown, so that several of such devices can be connected end-to-end. Upper and lower thrust-bearing units, Figs. 4 and 5 respectively, can be screwed on to the drill pipe(s) of the device(s), the rotors 4, 23, 30 of the device(s)and thrust-bearing units being interconnected by dogs 21. The upper unit can be attached to a "drill collar" 31 through which the working fluid enters the passages 13, 14. Sleeves 18 may inter-connect the passages 13, 14 and further passages 17, but not the passages 15, 16, so as to balance end thrusts. Spent fluid may escape through a tool holder 30. A dumping valve 33 opens when the tool stalls.