baber/WOPTO huggingface dataset:
Patent GB-934788-A (GB)
Title: Electron gun for electron beam apparatus
Inventor: HAHN EBERHARD
IPC: H01J35/14
Filed: 1959-12-24
Abstract: 934,788. Electron beam apparatus. CARL ZEISS JENA VEB. Dec. 24, 1959, No. 43889/59. Class 39 (1). An electron gun system for producing a fine beam spot, particularly in electron microscopes or X-ray tubes, has a cathode filament 1, Fig. 2, surrounded by a negative control electrode 2 which with a positive electrode 3 forms a divergent lens, an anode 5, and a further tubular positive electrode 4 which has an aperture diaphragm close to and facing the anode and which with the anode forms a strongly convergent immersion lens. The aperture diameter of electrode 4 equals the spacing between electrodes 4 and 5 and the voltage applied to electrode is of the order of 1/100 to 1/10 of the anode potential. Suitable dimensions and voltages are given for producing a focal spot of 2Á diameter, and it is stated that a focal spot of 1Á diameter may be produced. In an electron microscope the focal spot may be imaged in a distant object plane by means of a weak condenser lens of 1 : 1 magnification ratio. Regulation of the size of the focal spot, e.g. from 2Á to 20Á, while its position remains practically constant may be achieved by the arrangement of Fig. 4 in which a further intermediate positive electrode 6 is introduced close to the electrode 3, these electrodes providing a field between them of controllable refractive power. More than one further intermediate electrodes 6 may be provided. A condenser lens is shown at 9, 10 and 11. The angle of incidence of the beam in the object plane 13 can be adjusted by displacing the diaphragm 9 at right angles to the axis as well as changing the field strength of the deflecting system 12. An aperture diaphragm 7 is centrable, its aperture can be altered, or the diaphragm can be entirely removed. The beam can be centred by adjustment of the diaphragm 7 and joint manipulation of diaphragm 9 and deflecting system 12. The diaphragm 6 can be displaced sideways to correct for sideward drift of the focus when the voltage of diaphragm 6 is regulated to vary the size of the focal spot. The anode 5 is also centrable. The diaphragm 11 may be adjusted as an alternative to the use of the deflecting system 12. An astigmatism corrector consisting of a plurality of annular segments is shown at 8. In Fig. 5, a magnetic lens 15 which can be disposed outside the vacuum space, is used in place of the intermediate electrode 6 of Fig. 4. The electrostatic focusing and deflecting systems of Fig. 4 may be replaced by magnetic systems.
Patent GB-1015554-A (GB)
Title: Improvements in the production of penicillin-splitting enzymes
Inventor: CARRINGTON THOMAS RONALD
IPC: C12P37/02
Filed: 1963-11-07
Abstract: Penicillin-splitting enzymes are produced by culturing penicillin-splitting bacteria e.g. Escherichia coli under aerobic conditions in a nutrient medium substantially free from fermentable carbohydrate to which ammonium phenylacetate is gradually added during the fermentation to a final concentration of 0.12 to 2.0% w/v. based on the total volume of the fermentation medium.ALSO:An enzyme preparation obtained by the aerobic cultivation of Escherichia coli (see Division C3) is used in conventional manner for splitting penicillins to produce 6-amino penicillanic acid.
Patent GB-1432840-A (GB)
Title: Spring assembly
IPC: B61G11/10
Filed: 1973-09-19
Abstract: 1432840 Ring springs STEIRISCHE GUSSSTAHLWERKE AG 19 Sept 1973 43915/73 Heading F2S A spring assembly has an axis and is adapted to take up and exert a force in the direction of said axis and comprises resilient members 1 which are axially stacked in alternation with rigid rings 3, said rings 3 having peripheral sliding surfaces 2 which have generatrices which are inclined to said axis, said resilient members 1 bearing with line contact on said sliding surfaces 2, at least one of said resilient member 1 consisting of a coiled spring which has at least two convolutions, the neighbouring convolutions being in contact at least in the finally compressed state. Each sliding surface may have a profile consisting of two straight or curved sections and may appear on an internal peripheral face 2, Fig. 1, or on an external peripheral face 5, Fig. 3 (not shown). Each resilient member may be in the form of a close or open wound flat spiral spring, Figs. 5 and 6 respectively (not shown), offset between turns, 11, Figs. 7 and 8 (not shown), or with reverse bends 14, Figs. 9 and 10 (not shown). The resilient members may be in the form of cylindrical or waisted helical springs, 21, Fig. 13, and 24, Fig. 15 respectively (not shown) or volute springs 17, Fig. 11 (not shown).
Patent GB-1359054-A (GB)
Title: Plastic sheathed cables
IPC: D07B5/00
Filed: 1972-08-29
Abstract: 1359054 Impregnating sheathed cables DEFENCE SECRETARY OF STATE FOR 29 Aug 1972 [21 Sept 1971] 43956/71 Heading D1T A cable of the type wherein a multiplicity of fine strands is encased in a plastic sheath is treated as follows to prevent the threads slipping relatively to the sheath:- 1. Connecting one end of the cable to a supply of adhesive in dilute solution; 2. Applying a pressure to the solution to force the solution between the strands and the sheath; and 3. Drying out the solvent from the solution. The adhesive to solvent ratio is preferably in the order of one to a hundred and after the solution has been forced through the full length of the cable air may be blown through to assist in the drying out of the solvent. The sheath should be thin relatively to the core diameter so that it expands under internal pressure to allow penetration of the adhesive at the interface between the strands and the sheath. The adhesive solution may be in a sealed container, the cable end connected to an outlet at the bottom of the container, and air under pressure supplied to an airspace at the top of the container. Alternatively the adhesive solution is contained in a pressure gun, an extension of the sheath being forced over a nipple of the pressure gun and pressure applied to the solution.
Patent GB-440599-A (GB)
Abstract: 440,599. Hoppers. HIRTER & CO., J., 35, Schauplatzgasse, Berne, Switzerland, and CROSSMAN, F. M., 79, Avenue des Champs-ElysÚes, Paris. March 18, 1935, No 8429. Conventior date, Aug. 28, 1934 [Class 78 (i)] [See also Groups XII, XXXV, and XXXVII] Fuel is fed from a hopper 2 by worms 10 of opposite pitel through an opening 11 to a rotary dis. tributer 9, the worn shaft 3 and the distributer shaft 8 being connected by gearing and driven by an electric motor 15.
Patent GB-1161407-A (GB)
Title: Improvements in or relating to the Repairing of Pipes
Inventor: MURPHY JOHN
IPC: F16L55/1645
Filed: 1965-10-19
Abstract: 1,161,407. Repairing pipes. J. MURPHY. 14 Nov., 1966 [19 Oct., 1965], No. 44160/65. Heading F2P. Apparatus for repairing pipes comprises spaced inflatable plugs 3 which are adapted to make sealing engagement with the pipe 2, pump means, consisting of a conical, inflatable bag 4 which is expandible progressively from one end of the space 6 between the plugs and adjacent one of the plugs to fill the pipe and form a shuttering on the inside wall of the pipe over at least part of the space 6, and conduits 7 for passage into and out of the space for grouting or other settable sealing material. After location by television apparatus of a fault 1, the plugs 3 are inflated and grouting is pumped into the space 6 after which the bag 4 is inflated to fill the fault in the pipe with grouting and to cause the latter to flow back through the conduits 7 down which water is forced to wash out excess grouting from the space 6. The plugs and bag 4 may be mounted on a central flexible core 5.
Patent GB-1441017-A (GB)
Title: Ophthalmological medicaments
IPC: A61K31/44
Filed: 1973-09-20
Abstract: 1441017 Ophthalmological medicaments SOC BFB 20 Sept 1973 [13 Oct 1972] 44226/73 Heading A5B Compositions utilisable in ophthalmology for the treatment of keratoconus, corneal injury or damage, corneal herpes, sub-epithelial viral keratitis, epidemic epithelial keratitis punctata, cicatrisation of the cornea and non-tolerance by the cornea of contact lenses and admimstrable in oral form consist of 1 to 10 parts by weight of at least one compound selected from cystine and cysteine and 1 part by weight of pyridoxine (vitamin B6) in the form of the base or a pharmeceutically acceptable salt and optionally containing also one or more excipients and water. The compositions may be in the form of coated tablets, pills or cachets.
Patent GB-1213995-A (GB)
Title: Azo colouring matters containing imide groups
Inventor: BERRIE ALISTAIR HOWARD
IPC: C09B43/34
Filed: 1967-09-29
Abstract: 1,213,995. Dyes containing cyclic imide groups. IMPERIAL CHEMICAL INDUSTRIES Ltd. 16 Sept., 1968 [29 Sept., 1967], No. 44474/67. Heading C4P. The invention comprises azo pigments free from sulphonic and carboxylic acid groups and having the general formula wherein X is a. direct link or a divalent radical, B is the residue of a coupling component and ring A may be further substituted e.g. by halogen, alkyl or alkoxy. Preferably B is the residue of a coupling component of the acetoacetarylamide, 2 - hydroxy - 3 - naphthoic acid arylamide or the 5-pyrazolone series. X may be a divalent alkylene, aralkylene or arylene radical and may contain hetero atoms and/or substituents. They are prepared by (a) reacting two molar proportions of one or more acids of the formula or the anhydride or imide thereof with a diamine H 2 N-X-NH 2 , or (b) coupling a coupling component B-H with a tetrazotized diamine of the formula The pigments colour p.v.c., polythene, polystyrene and cellulose acetate in red, yellow and orange shades.
Patent GB-1361423-A (GB)
Title: Dithiophosphoric esters
IPC: C07F9/6512
Filed: 1971-09-24
Abstract: 1361423 Pesticidal dithiophosphoric acid esters BADISCHE ANILIN- & SODA-FABRIK AG 24 Sept 1971 [26 Sept 1970] 44583/71 Heading C2P The invention comprises compounds of Formula I  where R<SP>1</SP> is C 1-4  alkyl, A is -OR<SP>4</SP>, -NHR<SP>5</SP> or -NR<SP>6</SP>R<SP>7</SP>, R<SP>5</SP>, R<SP>6</SP> and R<SP>7</SP> are C 1-4  alkyl, R<SP>4</SP> is C 1-4  alkyl or is alkoxyalkyl, B is -OR<SP>8</SP>, -NHR<SP>8</SP>, -NR<SP>9</SP>CONR<SP>10</SP>R<SP>11</SP> or -NR<SP>9</SP>COOR<SP>10</SP>, R<SP>8</SP> is alkyl, C 2-4  alkenyl or alkynyl, R<SP>9</SP>, R<SP>10</SP> and R<SP>11</SP> are hydrogen or C 1-4  alkyl, R<SP>2</SP> is hydrogen or alkoxyalkyl and R<SP>3</SP> is hydrogen, C 2-5  alkoxymethyl or -C(O)-D where B and D together are -NR<SP>9</SP>-C(O)-NR<SP>10</SP>-, other than those compounds which fall within the scope of Specification 1,298,698. The compounds of Formula I may be prepared (a) by reacting a salt of Formula II where M is a cation with a compound of Formula III III where X is halogen or (b) by reacting a compound of Formula IV  IV with compounds of Formulae V and VI V VI in one or two stages. The compounds of Formula I have insecticidal and acaricidal properties and may be used as the active ingredients in conventional pesticidal compositions.
Patent GB-1287574-A (GB)
Title: Plastics containers
IPC: B65D90/02
Filed: 1969-09-10
Abstract: 1287574 Removing static charge from vehicles DIDAK NV 10 Sept 1969 [7 Feb 1969] 44680/69 Addition to 1277595 Heading B7H A container has one or more walls of plastics material and comprises an electrically conducting screen embedded in at least one of said walls, the screen extending over substantially the whole of the wall and being combined with a sheet of reinforcing material also embedded in the wall(s). Preferably the screen comprises a network of wires which may provide additional reinforcement to the wall. The screen will be earthed in use. The reinforcement material may be woven glass fibre. Specification 1,287,575 is referred to.
Patent GB-1100888-A (GB)
Title: Arc starting system for welding
Inventor: SCIAKY ALBERT M
IPC: B23K9/067
Filed: 1965-10-22
Abstract: 1,100,888. Arc-welding supply circuits. WELDING RESEARCH Inc. 22 Oct., 1965 [26 Oct., 1964], No. 44783/65. Heading H2H. In an arc-welding system, the arc between the electrode 11 and workpiece 12 is initiated by closure of relay contacts 36 to connect charged capacitors 37, 38 to the winding 17 of a transformer 14, the voltage pulse so produced being stepped up by another winding 15 to produce a weak arc between members 11, 12, and being stepped by up a third winding 16 to fire spark gaps 23, 24 and so allow charged capacitors 26, 27, 28 to discharge through members 23, 29, 15 and thus increase the current through the arc between members 11, 12. This increase reduces the arc resistance to cause current to flow from the welding current source 10 and so produce a stable arc. After a time delay, contacts 36 are opened by the operation of a slowly-energized relay 58 having contacts 58a for such purpose and contacts 58b for causing closure of contacts 62a, 62b to short-circuit the winding 15 while the welding current is flowing.
Patent GB-1247176-A (GB)
Title: Electro-pneumatic operating system for air valves of braking systems of railway vehicles having central buffer couplings
Inventor: HERMANN JOHANNES
IPC: B61G5/08
Filed: 1968-09-20
Abstract: 1,247,176. Service line couplings for rail vehicles. GERMANY, MINISTRY OF TRANSPORT. 20 Sept., 1968, No. 44936/68. Heading B7T. [Also in Division F2] In an electro-pneumatic operating system for the air valves 19, 19a of pneumatic braking systems of a tractive railway vehicle 1 and a wagon vehicle 1a of the type having central buffer couplings carrying main (2, 2a) and service (3, 3a) air lines and electric contact connections 7, each vehicle carries a solenoidoperated air valve 12, 12a connected through a branch air line 2b, 3b for actuation of the piston and cylinder assemblies 11, 11a of the vehicles when a control switch 18 in the cab of the tractive vehicle is actuated. Manual operation of the air valves 19, 19a is achieved by actuation of a transverse rod (not shown) from either side of the vehicle which, in turn, actuates a cam (8, 8a) to close a set of electrical contacts 9, 9a and energize the solenoid operated valves 12, 12a, the valves 19, 19a being controlled by either manual control through the transverse rod (not shown) or by actuation of the piston and cylinder assemblies 11, 11a.
Patent GB-1260066-A (GB)
Title: Pocket forming device for library cards
IPC: G09F3/20
Filed: 1970-09-23
Abstract: 1,260,066. Card holder. BRO-DART INDUSTRIES Inc. 23 Sept., 1970 [3 Oct., 1969], No. 45191/70. Heading B8F. A device for application to a book surface to form a pocket for a library card comprises a sheet 10 bearing pressure-sensitive adhesive and a readily peelable cover 12 having cuts 19, 20 permitting the removal of a portion 18 of the cover to expose the adhesive and thus enable the device to be applied to the book surface. The bottom of the sheet 10 may be folded back at 13, the outside of the turned-back part bearing adhesive 15 and the facing surfaces of the turned-back part being free of adhesive as is a band 21 of the rear surface of the sheet 10 so that the lower end of the pocket is completely devoid of adhesive to ensure that the bottom of a library card will not contact adhesive. A reinforcing plastics strip may be interposed between, and adhesively secured to, the sheets 10, 12.
Patent GB-1443865-A (GB)
Title: Electrolyte for electrolytic capacitors and capacitors  including such an electrolyte
IPC: H01G9/02
Filed: 1974-10-22
Abstract: 1443865 Electrolytic capacitors INTERNATIONAL STANDARD ELECTRIC CORP 22 Oct 1974 [30 Oct 1973] 45606/74 Heading H1M In an aluminium electrolytic capacitor, the substantially anhydrous electrolyte consists of specified proportions of propylene carbonate, which may be partially replaced by ethylene carbonate, γ-butyrolactone, N-methyl acetamide or N,N-dimethylacetamide or N-methylformamide, picric acid, citric acid and tetramethylguanidine.
Patent GB-1021584-A (GB)
Title: Device for supporting drawings and like sheets
Inventor: HODSMAN JAMES ROBERT
IPC: B43L5/02
Filed: 1963-11-20
Abstract: 1,021,584. Clamps; hinges and pivots. J. HODSMAN & SON Ltd. Nov. 20, 1964 [Nov. 20, 1963], No. 45757/63. Headings E2B and E2F. A device for supporting drawings and like sheets comprises a pair of battens, laths or rails B connected by two or more clamps spaced along the battens each clamp consisting of two portions 5, 5 which are hinged together and which have coacting surfaces 6 inclined to the longitudinal direction of the battens and which have screw-threaded means 7, 8 for forcing the two surfaces together whereby an angular movement of the two portions is produced to clamp the battens together. As shown, each clamp is formed from a blank and the screw means consists of a nut 7 welded to one rolled-over part 5 of one clamp portion and engageable by a thumbscrew 8 passed through a similar part 5 on the other portion.
Patent GB-973103-A (GB)
Title: Foamable thermoplastic polymer granules,particles or beads and method of manufacture thereof
IPC: C08J9/224
Filed: 1961-12-22
Abstract: The invention comprises free flowing foamable and/or partially foamed thermoplastic polymer particles or beads which contain an aliphatic hydrogen carbon compound in which a majority of the hydrogen atoms has been replaced by fluorine atoms and which compound contains at least one group which renders the compound soluble or dispersible in water or in a mixture of a minor proportion of a water miscible organic solvent with a major proportion of water, the aliphatic fluorine-containing compound being present in or on the particles or beads in a quantity high enough to prevent clumping of the beads or particles but not high enough to substantially interfere in their ability to bond or fuse with each other when subjected to a final foaming and shaping step.  The particles may also contain additives which render them flameproof or self-extinguishing. A suitable fluorinated compound is perfluorooctanoic acid.  Suitable polymers are homo- and co-polymers of styrene, vinyltoluene, vinylxylene, isopropylstyrene, tert. butyl styrene, ethylvinylbenzene, chloro-, bromo-or fluoro-styrene, dichlorostyrene, with which minor amounts of divinylbenzene, methyl methacrylate or acrylonitrile may be copolymerized. The fluorine compounds may be applied by spraying the beads with solution in water or ethanol, methanol or petroleum ether. The amount of fluorine compound may be as little as 10 parts per million of the weight of beads, although 30 ppm. is generally used. Above 500 ppm. interference with the fusing action may occur.  In an example polystyrene beads containing about 6.5% of normal pentane are treated with aqueous perfluoro-octanoic acid solution.  After drying, prefoaming is effected at 99 DEG C. and the partially expanded beads are moulded at 110 DEG C.
Patent GB-1119050-A (GB)
Title: Improvements in or relating to the manufacture of semiconductor devices by epitaxialdeposition
Inventor: KAPPELMEYER RUDOLF
IPC: C07D417/06
Filed: 1965-11-01
Abstract: A semi conductor material, e.g. silicon, germanium, silicon carbide or an AIIIBV compound, is deposited epitaxially from the gas phase, e.g. a halide, on a monocrystalline semi-conductor wafer by placing said wafer in a recess in a horizontal support member and heating said support member by passing an electric current through it.  A supplementary heating member located beneath, but not touching the support member, supplies to said support member an amount of heat equal to that lost by radiation from the underside of said support member.  The various parts of the apparatus may be coated with SiO2, to prevent the deposition of impurities.ALSO:A semi-conductor material, e.g. silicon, germanium, silicon carbide or an AIIIBV compound, is deposited epitaxially from the gas phase, e.g. a halide, on a monocrystalline semiconductor wafer by placing said wafer in a recess in a horizontal support member and heating said support member by passing an electric current through it.  A supplementary heating member located beneath, but not touching the support member, supplies to said support member an amount of heat equal to that lost by radiation from the underside of said support member. The various parts of the apparatus may be coated with SiO2 to prevent impurities from being deposited.
Patent GB-1311238-A (GB)
Title: Electric cable sealing end
IPC: H02G15/068
Filed: 1971-10-05
Abstract: 1311238 Cable terminations INDUSTRIE PIRELLI SpA 5 Oct 1971 [7 Oct 1970] 46262/71 Heading H2E A device for sealing and completely insulating the end of a high voltage cable, when the cable end is not to be connected to other devices, has a tapered conducting member 21. One end 23 of this is large and rounded. The other end 22 is of similar cross-section to the cable core. The conducting member 21 is surrounded, except at the narrow end, by a solid insulating block 24. In use, after the insulation 12 and conductive sheath 13 of the cable have been stripped back, the projecting end of the conducting member 21 is connected to the end 14 of the cable core by a clamp 30, fresh insulation 28 and a conducting sheath 29 are applied, and the whole is then sealed in a case 31.
Patent GB-1104004-A (GB)
Title: Vent plugs for liquid receptacles
IPC: F16K24/04
Filed: 1966-10-17
Abstract: 1,104,004. Valves. GENERAL MOTORS CORPORATION. 17 Oct., 1966 [24 Oct., 1965], No. 46275/66. Heading F2V. A vent plug comprises a body 18 adapted to be mounted in a wall of a closed liquid receptacle, such as the rear axle housing 10 of a motor vehicle, a vent passage 24 which extends through the body, an outwardly-tapered valve seat 41 in the passage, and a valve member 44 movable in response to surges of liquid to close the seat. The body 18 is provided with a screwthread 12 for engagement with the housing and radially directed passageways 34 supporting a cap 36 secured by inwardly-bent tab portions 38. Downward travel of the valve is limited by a cross-bar 48 engaging a detachable conical baffle 40 in which the seat is formed.
Patent GB-1092562-A (GB)
Title: A crank type press with a hydraulically controlled movable die
IPC: B21D24/02
Filed: 1965-11-02
Abstract: 1,092,562. Forging presses. DI-DRO ENGINEERING CO. Nov. 2, 1965 [Dec. 31, 1964], No. 46312/65. Heading B3H. A crank type press which comprises a crank driven ram 12 and die 16, a fixed die 18, and a hydraulic cushion 22 operatively connected by rods 28 to a piston 26 movable in a cylinder 24, is provided with an hydraulic circuit connected with the cylinder to absorb shocks sustained by the cushion. A tank 30 supplies fluid at relatively low pressure to the cylinder 24 through conduits 32 and 36 and a one-way valve 40. Upon the die 16 striking the cushion 22, fluid is forced through a pressure relief valve 48, adjustably biased by a spring 54, and returns to the tank 30. A shock absorber 60 including a double spring-loaded piston 64 absorbs the initial shock before the valve 48 opens. Similarly, a shock absorber 80 connected to conduit 32 absorbs the shock when the flow of fluid to the cylinder 24 is suddenly halted due to the piston reaching its upper position. The pistons of the shock absorbers may be free floating with an adjustable fluid pressure exerted on their lower faces.
Patent GB-953672-A (GB)
Title: Toy balloons
IPC: A63H27/10
Filed: 1961-12-28
Abstract: A toy balloon has fixed to an exterior part opposite to the neck an elastic cord of about twenth inches relaxed length. Markings on the balloon simulate a human or animal face.  The balloon is connected to the cord by drawing part of the balloon and the cord into a rubber sleeve into which are inserted beads of a larger diameter than the interior diameter of the sleeve.
Patent GB-1486607-A (GB)
Title: Recovery of elemental sulphur from sulphur dioxide bearing waste gas
IPC: C01B17/05
Filed: 1974-10-29
Abstract: 1486607 SO 2  removal sulphur recovery US FILTER CORP 29 Oct 1974 [29 Oct 1973] 46873/74 Heading C1A SO 2  is removed from industrial waste gas streams by introducing the SO 2  bearing gas stream into absorbent contact with a solution of mixed mono-ammonium and di-ammonium phosphates to effect removal of SO 2  values, and reacting the absorbed SO 2  with H 2 S to reduce the sulphur to elemental sulphur.