baber/WOPTO huggingface dataset:
Patent GB-1570216-A (GB)
Title: Electrical machine operating as a generator or as an amplifier
IPC: H02K57/00
Filed: 1976-11-04
Abstract: The invention relates to an electrical machine. The stator 1 is a delay line, in the form of a low-pass filter in the example, formed by inductance 11 and capacitors 12 connected between these inductances and the common conductor 13. The rotor 2 comprises dissipating elements 22 incorporated in circuits 26, separate in the example, and having a common point 25. It is put in movement by a motor. The machine operates as a high-gain amplifier having a wide band of high-frequency signals applied to the input 14 of the stator, separated from the output 15 by the decoupling zone 30. High powers are obtainable. Application to installations for testing vibration of industrial equipment and to high-power longwave radio transmission.
Patent GB-957870-A (GB)
Title: Improvements relating to machine milking apparatus
Inventor: CORDEROY NEEL
IPC: A01J5/04
Filed: 1961-12-22
Abstract: 957,870. Flexible elbows. ALFA-LAVAL CO. Ltd. Feb. 15, 1963 [Feb. 15, 1961], No. 46054/61. Headings F2G and F2V. [Also in Division A1] A flexible elbow, situated between a container and a flexible milk tube, has two arms 21, 22 set at an angle to each other, one arm 21 fitting a nipple on the container and the other arm 22 having a rigid connector 23 secured to it. Projecting from the elbow is a tubular outlet 26 into which a drain plug 27 or a sampling valve 30 can be inserted. Valves. The valve 30 comprises a body 31 of high impact ebonite. A ring 34, which fits a recess in the body 31 carries resiliently flexible arms 33 connected to a valve ball 32. As shown (Fig. 3) the tension in the arms 33 holds the ball 32 in a sealing position but the arms are sufficiently elastic to allow the ball to be displaced to open the valve.
Patent GB-1395973-A (GB)
Title: Mounting a brush for cleaning the working rolls of a roll stand
IPC: B21B28/04
Filed: 1972-10-06
Abstract: 1395973 Rolling mills SCHLOEMANN AG 6 Oct 1972 [12 Oct 1971] 46199/72 Heading B3M Each of the work rolls 2 and 3 of a four-high mill is provided with a cleaning brush 10 or 11 pivotally carried around the necks of the adjacent backing roll 8 or 9. Each brush is supported at its ends by rings 14 (Fig. 1) surrounding the necks of a backing roll. The rings have external teeth which enable them to be rotated by pinions 19 connected by a shaft 24. The pinions are rotated by cylinders 21, to move the brushes towards or away from the work rolls. Adjustable stops (Fig. 3, not shown) limit the movement of the brushes, but the stops may be made inoperative, to allow the work rolls to be removed from the mill.
Patent GB-1029033-A (GB)
Title: Polyurethanes derived from modified phenol-aldehyde resins
IPC: C08G18/54
Filed: 1962-12-07
Abstract: A process for preparing polyurethanes comprises reacting (1) a product obtained by reacting together (A) a fusible phenol aldehyde resin, and (B) an oxirane ring compound, alkylene halohydrin, alkylene carbonate or mixtures thereof; whereby the phenolic hydroxy groups in the phenol aldehyde resin are etherified with an alkylene-hydroxy group (including a substituted alkylene hydroxy group) with (2) an organic polyisocyanate.  A polyether or polyester may be used as a coreactant with compound (1).  Many phenols and aldehydes are specified as precursors for compound (A), which may be a resole or novolak.  Many oxyalkylating agents, e.g. monoepoxines, glycidyl ethers and diepoxides are specified.  Conventional organic polyisocyanates are listed.  In Example (29) propylene oxide was reacted with the product of one mole of phenol with 3 moles of HCHO. To the resin thus produced tolylene diisocyanate, Cl3CF, and a silicone oil were added and a foam obtained. In Example (32) the reaction product of phenol, HCHO, triethanolamine and 1:2 propylene oxide was blended with a silicone emulsifier, trimethanol-butanediamine and tolylene diisocyanate and the polyurethane placed between two aluminium sheets.  In Example (34) a mixture of (A) the reaction product ethylene oxide with a phenol-formaldehyde resin and (B) the reaction product of trimethylol propane and 1,4,5,6,7,7-hexachlorobicyclo - (2,2,1) - 5 - heptene - 2,3 - dicarboxylic acid was reacted with tolylene diisocyanate in the presence of CCl3F to obtain a polyurethane foam.
Patent GB-1447875-A (GB)
Title: Four-wheel drive vehicle with drive transfer gear assembly
IPC: F16H3/04
Filed: 1973-10-04
Abstract: 1447875 Four-wheel-drive vehicles EATON CORP 4 Oct 1973 [5 Oct 1972] 46460/73 Heading B7H [Also in Division F2] In a transfer-gear assembly for a vehicle for proportioning the drive between front and rear axles, an input shaft 60 has a drive connection with a carrier 76 of which planetary pinions 82 mesh with an output ring gear 72 and with an output sun gear 74, and one of the output gears, as shown the sun 74 is connected through torque limiting means to an output shaft. The ring gear has a splined connection 90 with an output shaft 82a driving a rear axle differential 39, and the sun 74 is freely rotatable on a hub 78 of the carrier and has a splined connection with a gear ring 64 which, through an offset idler gear (63, Fig. 2, not shown) and a gear 68 drives an output shaft 66 connected to a propeller shaft (not shown) extending to a forward drop axle of the vehicle. The output shaft 66 is protected against excessive torque by a double cone clutch 67 incorporated in the gear 68 and loaded by a spring 146. The ring 64 has, e.g. 31 teeth whereas the gear 68 has 30 teeth so that during normal forward running the sun 74 rotates slightly slower than the shaft 60. This speed difference is permitted by a ratchet clutch comprising a ring 108 splined on the shaft 60 and loaded by a spring 114 so that its teeth 110 are pressed against teeth on the end face of the sun, but should the front wheels tend to overspeed, the sun is arrested by the ratchet clutch and thereby prevented from turning faster than the shaft 60. Overspeeding of the rear wheels, which is not checked by the ratchet clutch, can be prevented by engagement by the vehicle driver of a straight-toothed clutch 60 to lock the ring 64 and sun to the shaft 60.
Patent GB-938518-A (GB)
Title: Improvements in or relating to tubular filter elements
IPC: B01D29/00
Filed: 1961-12-28
Abstract: 938,518. Filters. R. JAUME. Dec. 28, 1961 [Jan. 3, 1961], No. 46507/61. Class 46. A tubular filter element 1, preferably of polyamide gauze, has an integrally-moulded thin-walled bellows sleeve 6 and is secured between a recess 9 and a bore 10 in an engine sump 8 by a threaded ring 11, through which filtrate is withdrawn. The bellows sleeve serves to permit expansion and contraction of the element proper, and, if pre-compressed, serves to ensure longitudinally-tight fitting of it.
Patent GB-1269143-A (GB)
Title: Method of mounting a heater in a tubular cathode
Inventor: LUNDVALL CARL LEONARD II
IPC: H01J29/04
Filed: 1969-09-22
Abstract: 1,269,143. Thermionic cathode constructions. RCA CORPORATION. 22 Sept., 1969 [24 Sept., 1968], No. 46544/69. Heading HID. [Also in Division G1] A longitudinal heater 26 is mounted in a tubular cathode 11, e.g. of a three gun colour cathode ray tube, by attaching a U-shaped metal tab 68 to the wire legs 28, 30 of the heater and inserting it into the open end 12 of the cathode and applying a predetermined calibrated force, Fig. 5 (not shown), to the tab to urge the heater 26 into contact with the closed end 14 of the cathode, each arm 32, 33 of the tab is then fixed to a respective support 34, 36 and the portion of the U-shaped tab which joins the arms 32, 33 is removed to electrically isolate the arms from each other except through the heater. Preferably the tab arms 32, 33 are close enough so that the wire legs 28, 30 lie within the projection of the open end of the cathode. Each heater and tab assembly is made of similar dimensions so that, for example, the three cathodes of a three gun C.R.T. operate under identical conditions for the same heater current and the three guns may be mounted such that they are electrically connected in series, Fig. 2 (not shown). The cathode 11 is supported by tubular flared member 16, 18, 19 to two glass supports 22, 24 to which also is attached the heater supports 34, 36.
Patent GB-935234-A (GB)
Title: Electrical connector
IPC: H01R12/72
Filed: 1961-12-29
Abstract: 935,234. Two-part couplings. BURNDY CORPORATION. Dec. 29, 1961 [Jan. 3, 1961], No. 46548/61. Class 38 (1). A connector comprises an insulating housing 11, 13 having contact receiving bores 17, 19 between the ends of which is disposed a resilient insulating sheet 23 having holes 25 smaller than said bores and axially aligned with said bores. Connector contacts 7 are positioned in the front part 11 of the housing in longitudinal bores 17, and project into a communicating transverse recess 15 to contact circuits on the edge of a printed circuit board. External pins 9 enter bores 19 in the rear part 13 of the housing, and are forced through holes 25 in sheet 23 to engage sockets 21 on contacts 7. The sheet 23 holds pins 9 in position by snapping back to closely surround grooves 27 in pins 9 after flanges 29 have passed through holes 25.
Patent GB-1206688-A (GB)
Title: Improvements relating to potential dividers
Inventor: SCOLES GRAHAM JOHN
IPC: G01R15/14
Filed: 1968-10-01
Abstract: 1,206,688. Voltage modifying arrangements. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 13 Aug., 1969 [1 Oct., 1968], No. 46578/68. Heading H2H. A potential divider comprises a resistor connected in series with a resistance unit which includes either a thermionic valve or a field effect transistor together with a resistive cathode or source load. In the embodiment of Fig. 1, a high-voltage D.C. input, e.g. 250 kv., is applied to terminals A, B between which are connected a D.C. source H.T., a triode V1, a cathode load RC, and a resistor R1. A tapping of, say, 250 V. is taken from output terminals C, D and, due to the presence of the triode, variations in the input voltage are attenuated to a much smaller extent than would be the case with a purely resistive potential divider. Attenuation is further reduced by including a second triode in series with the first and a third triode may be added to provide a source of constant voltage to the grid of the second triode. Identical circuits using field effect transistors, which may be either N- channel or P-channel, in place of the triodes are also described. The potential dividers disclosed are useful for stabilizing and controlling high voltages, particularly when a low-impedance output is needed, one application being in the high-voltage supply to an electron microscope.
Patent GB-1282732-A (GB)
Title: Electrically superior polyester film
IPC: C08L67/02
Filed: 1969-09-22
Abstract: 1282732 Electrically improved polyester film MINNESOTA MINING & MFG CO 22 Sept 1969 [23 Sept 1968] 46638/69 Heading B5B [Also in Divisions C3 and H1] A biaxially oriented film with improved electrical properties of uniform dielectric constant over a wide range of frequencies and temperature and a reduced dielectric dissipation factor is formed from a visually uniform blend of a major proportion of polyethylene terephthalate and a minor proportion, preferably 0À25 to 30% by weight of polystyrene, polyionomer or poly(4-methyl pentene), the minor polymer being distributed throughout the film in the form of discrete microscopic particles, preferably platelets. The minor polymer is added to the polyethylene terephthalate prepolymer and the polymerization of polyester completed. Alternatively, ground polyethylene terephthalate may be intimately mechanically mixed with minor polymer. The film may be used to improve capacitors, cable wraps, and other insulated electrical circuit components such as transformers, bases for flexible printed circuitry and tape conductor cables.
Patent GB-1077686-A (GB)
Title: Thin film printed circuits
IPC: G03G13/26
Filed: 1964-11-17
Abstract: 1,077,686. Printed circuits. XEROX CORPORATION. No. 17, 1964 [Nov. 20, 1968], No. 46845/64. Heading H1R. In a method of making a thin film circuit component, e.g. a conductor, resistor, dielectric layer, an image of the component is formed, as by xerography; this image (27, Fig. 2, not shown), is located on the adhesive surface of an adhesive tape (30) which is applied to a strippable film (174) of etchant-resist material, formed on a layer (173) of component-forming material on an insulating base (168), e.g. of ceramic or plastics. The tape (30) is then stripped off, taking with it the resist (174) except where the latter is protected from the adhesive by the image (27). The component is then formed by etching, after which the remaining resist is removed. The component material (173) may be an evaporated film of e.g. Al, Ag, Cu, or may be a chemically deposited layer, of which examples are given in the Specification involving the deposition of conductive layers of Cu and Ni, resistive layers of tin oxide and Cr and a dielectric layer of magnesium oxide.
Patent GB-1405670-A (GB)
Title: Electrolytic soldering arrangement
IPC: B23K28/00
Filed: 1972-10-12
Abstract: 1405670 Electrolyte soldering COMPAGNIE HONEYWELL BULL 12 Oct 1972 [13 Oct 1971] 47199/72 Heading C7B An electrolytic soldering arrangement comprises an electrolyte container through which electrolyte can be circulated and having at least one capillary opening to allow a drop of electrolyte to be formed and maintained at the opening during circulation of the solution. At least one anode is in contact with the electrolyte in the container. The conductors to be soldered are placed in contact with the drop and are connected as cathode. As shown container 1 forms part of an electrolyte circuit comprising pump 3 and reservoir 4. Capillary orifice 10 allows a drop 14 of electrolyte to form at the junction of conductors 9a and 9b. Anode 8 fills the crosssection of the container and is connected to a D.C. source 7 which is also connected to 9a and 9b. In a modification, Fig. 2 (not shown), the circulation inlet and outlet to the container are at different levels, the outlet being adjacent the capillary orifice. The capillary opening may be filled by a porous plug, Fig. 3 (not shown). The container 1 may be replaced by two tubes (11) and (12) the capillary opening being at the junction of the tubes, Fig. 4 (not shown). The area of electrolytic treatment may be restricted by a mash, e.g. of adhesive tape which leaves the soldering zone free.
Patent GB-1326628-A (GB)
Title: Stabilisation of polymeric materials
IPC: D06M13/487
Filed: 1970-10-06
Abstract: 1326628 Stabilisation of textile fibres COMMONWEALTH SCIENTIFIC & INDUSTRIAL RESEARCH ORGANIZATION 6 Oct 1970 [7 Oct 1969] 47535/70 Heading D1P A method, for treating a textile material to improve its resistance to and recovery from deformation comprises heating the material in an atmosphere in which the relative humidity is between 50 and 95%, preferably 65 to 90%, at a temperature of from 30‹C to 150‹C, preferably 40 to 150‹C for a period of from 5 minutes to 2 weeks, preferably 5 minutes to 3 days, thereby to improve the resistance to and recovery from wrinkling of the material; and treating the material with at least one multifunctional compound which is capable of undergoing a reaction with the material under conditions which do not deanneal the material. Preferably the temperature is from 100 to 120‹C. and the heating period is from 10 minutes to 4 hours. The term multifunctional compound refers to compounds small enough to deffuse into the fibre, which possess at least two reactive sites or groups and is capable of undergoing reaction with itself, with another such compound and directly or indirectly with the substance of the textile fibre giving new chemical linkages. The multifunctional compound may be applied to the textile material before, during or after exposure of the textile material to the annealing conditions is the elevated temperature and the increased relative humidity. Furthermore two or more multifunctional compounds or two or more reactants which together give rise to a multifunctional compound may be applied. It is possible to apply one multifunctional compound at one stage of the procedure and another compound at a subsequent stage, forming a three dimensionally cross-linked polymeric structure involving reactive sites in the textile fibres. The multifunctional compound contains at least two reactive groups selected from formyl (aldehydo), epoxy, aziridinyl, O- and N-methylol or alkylmethyl activated C-methylol, isocyanato and isothiocyanato, displaceable halogen, vinyl and activated 2-hydroxylethyl and O-derivatives thereof, sites capable of generating free radicals on irradiation, hydroxyl, amino, carbamyl, carboxyl, aliphatic and heterocyclic imino, imido and mercapto. Preferably the first reagent is a compound selected from melamine and its hydroxymethyl derivatives (particularly monomethylolmelamine), resorcinol, pyrogallol, #- resorcyl aldehyde, phloroglucinol, n-phenylenediamine and p-phenylenediamine. The second reagent is formaldehyde, either in its gaseous form or as paraformaldehyde. Preferably 1 to 10% of both reagents are used (based on the weight of the material). Materials treated by the method are cotton, wool, silk, nylon and all polymer materials which can undergo molecular rearrangement.
Patent GB-1415949-A (GB)
Title: Magnetic storage medium
IPC: C09D5/23
Filed: 1973-10-12
Abstract: 1415949 Magnetizable compositions AGFAGEVAERT AG 12 Oct 1973 [13 Oct 1972] 47663/73 Headings C3R C3P and C3B A magnetic storage medium comprises a support and a layer comprising a binder CrO 2  (preferably acicular), and as dispersant, an alkyl-aryl sulphonic acid, the alkyl radical of which contains 8 to 22 carbon atoms. In examples, binders used are a polyetherurethane mixed with a hydroxyl-group-containing copolymer of vinyl chloride and vinyl acetate (I, III-VII), a vinyl alcohol/vinyl acetal/vinyl formal copolymer (II) ; or vinylidene chloride/ acrylonitrile copolymer (VIII). The dispersant may be: dodecyl benzene sulphonic acid (I, II, V, VII, VIII) optionally mixed with mono- and di - phosphoric esters of octanol (III) or 2-ethylhexanol (V); or tetrapropylenebenzene sulphonic acid (II, IV and VI) optionally mixed with mono- and di-phosphoric esters of lauryl alcohol (IV) or C 20-22  alcohols (VI). The coating compositions may also contain stearic acid amide lubricant (I, II and VII, VIII), and a hardener, e.g. isobutylated melamine-formaldehyde (III), or a polyisocyanate (VII). Suitable solvents are given. Generally other suitable dispersants are phosphoric acid mono- or di-esters of C 8-22  alcohols or an alkoxylated phenol. Other binders mentioned are epoxy resins.
Patent GB-1193196-A (GB)
Title: Method of manufacturing beta-Ionone
IPC: C07C403/00
Filed: 1967-10-23
Abstract: 1,193,196. #-lonone. PHILIPS GLOEILAMPENFABRIEKEN N.V. 23 Oct., 1967 [26 Oct., 1966], No. 48027/67. Heading C2C. #-Ionone is prepared by cyclising pseudoionone by means of sulphuric acid in the presence of sulphur dioxide substantially at, a temperature equal to or above the boiling point of sulphur dioxide. Preferably the process is carried out at a temperature between - 10‹ C. and + 10‹ C.
Patent GB-1193095-A (GB)
Title: Improvements in or relating to Self-Starting Arc Lamps.
IPC: H01J61/98
Filed: 1967-10-24
Abstract: 1,193,095. Discharge lamps. PEK LABS Inc. 24 Oct., 1967 [24 Feb., 1967], No. 48197/67. Heading H1D. A self-starting short arc lamp of the type described in Specifications 1,080,606 and 1,042,213, comprising electrodes 16 and 18 connected by a bridgewire 50 which fuses to start the arc on the application of the normal low voltage main power supply, is characterized in that the bridgewire has a looped configuration so that its ends are pressed into resilient contact against the electrodes near the electrode arc ends. In Fig. 3, the electrodes are provided with slots 60 and 62 in which the wire 50 is a sliding fit, the ends of the wire being welded to the electrodes by means of platinum tabs 52 and 54. The distance A between the exit end of each slot and the apex of the electrode should be between one and four times the diameter of the wire, the optimum distance being two diameters. The free length of the wire should be between one and a half and five times the gap length G, the arc length of the loops correspondingly lying between 90 and 270 degrees and being 180 degrees in Fig. 3. In a modification (Fig. 5, not shown), the wire is formed into a single loop describing an arc of between 90 and 270 degrees. With this arrangement, when the electrodes are not identical the cathode slot may be closed by swaging so that the bridgewire is captured and cannot escape (Fig. 7, not shown). The looped structure of the bridgewire enables it to withstand shock such as is experienced in a missile. The electrodes may be disposed in a quartz envelope which is shrunk round the electrodes and filled with inert gas such as xenon at a pressure of 10-15 atmospheres at room temperature rising to 15-30 atmospheres at operating temperature.
Patent GB-1406348-A (GB)
Title: Method of producing a magnetic chuck
IPC: B22F7/08
Filed: 1973-10-17
Abstract: 1406348 Sintered magnetic plate K DINTER 17 Oct 1973 48304/73 Heading C7D [Also in Division H1] An electromagnetic chuck is made by placing a non-magnetic separator 5 of undulating shape in a die, filling the rest of the die with soft iron powder, pressing and sintering to form a chuck in which the separator 5 divides the two separate magnetic poles 6 and 7. The separator may be brass or non-magnetic steel or alternatively synthetic resin may be poured into a sectioned mould. Electric coils 3 are fitted into grooves 4 and a cover-plate 2 attached.
Patent GB-1001000-A (GB)
Title: Improvements in or relating to electrostatic precipitators
IPC: B03C3/68
Filed: 1963-12-06
Abstract: 1,001,000. Supply circuits for electrostatic precipitators; excess current protection. HONEYWELL Inc. Dec. 6, 1963 [Dec. 7, 1962], No. 48342/63. Addition to 999,271. Heading H2H. The electrostatic precipitator described in the parent Specification is provided with an arcquenching network 100 comprising a capacitor 101, a high value resistor 102 and a low value resistor 103, the arrangement being such that upon initiation of an arc between terminals 82, 84 due to arcing in the collector 67, the capacitor 101 is charged until the arc is extinguished and thereupon discharges through the resistor 102, this action being repetitive so that a period of abnormally low impedance in the collector 67 is characterized by cyclically repeated voltage breakdown and arc quenching at the terminals 82, 84. This is indicated at a point remote from the precipitator by oscillation in the reading of the ammeter 28 and/or periodic flashing of a light 112, members 28, 112 being energized through a transformer 104. Malfunction of the collector 67 may be indicated at the precipitator by further lights 113, 114.
Patent GB-1201337-A (GB)
Title: Vehicle braking systems
IPC: B60T13/58
Filed: 1967-10-25
Abstract: 1,201,337. Hydrodynamic brake system. A. TEVES G.m.b.H. 25 Oct., 1967 [12 Nov., 19661, No. 48547/67. Headings F2E and F2F. In a hydrodynamic braking system of the type described in Specification 1,196,639, the flow of liquid to and from the hydrodynamic brake is controlled by a valve 24 responsive to the pressure differential between on the one hand the pressure difference formed from the pedal pressure and the hydrodynamic brake pressure, and on the other hand the hydrodynamic brake pressure. The valve 24 may be electromagnetically controlled by solenoids 26, 27 connected to a pressure-sensitive switch having chambers 65, 66 connected to the master cylinder and the hydrodynamic brake and a third chamber 67. The solenoids may be actuated manually by switch 33 and heat and load-sensitive switches 69, 52 are provided to empty the brake in case of faults. The valve may be alternatively operated hydraulically.