baber/WOPTO huggingface dataset:
Patent GB-918686-A (GB)
Title: Process and apparatus for manufacturing hollow components
IPC: B23K11/087
Filed: 1960-12-08
Abstract: 918,686. Making tubes and seams; welding by pressure; angular bending. WOGERBAUER, A. Dec. 8, 1960 [Dec. 10, 1959], No. 42345/60. Classes 83 (2) and 83 (4). In the continuous manufacture of a hollow component, e.g. a tube, a longitudinal edge of one section is brought together with a longitudinal edge of another section to form a notch and the sections are shaped by pressure exerted in the plane of the tip of the notch, the longitudinal edges are bent to be of sinusoidal form as they approach the notch to shorten the tip of the notch and the edges are heated to welding temperature in the zone where the tip of the notch is formed to weld them together. Two trough-shaped sections 1, Fig. 3, are guided by rollers 7-10 between rollers 4, 4 connected to the secondary 13, Fig. 6, of a transformer and flanges 12 on the sections are forced inwardly at the welding station by rollers 11, 11<SP>1</SP> above and below the sections to form a rectangular section tube, the notch 2 being curved and shortened. The distance a from the centre of the electrode rollers to the centre of the pressure rollers is equal to the width of the finished tube. The sections may form diamond, round or irregular cross-section tubes and the pressure rollers may be recessed as in Fig. 16, may be adjustable longitudinally and laterally of the tube and may be pivotable. The pressure rollers may be of ceramic or of insulated austenitic steel laminations. The final shaping of the tubes may be effected after welding. Specification 848,272 is referred to.
Patent GB-1069578-A (GB)
Title: Improvements in or relating to magnetic storage elements
IPC: H01F10/10
Filed: 1964-10-16
Abstract: 1,069,578. Magnetic storage devices CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. Oct. 16, 1964 [Oct. 18, 1963], No. 42345/64. Heading H1T. A magnetic memory element is formed of two thin anisotropic magnetic films 1, 2 separated by non-ferromagnetic film which is so thin (500 Š or less) that remanent magnetization in one magnetic film produces magnetization in the same direction, in the other film. The magnetic films may be of the same material or one may be of nickel iron alloy and the other (of higher coercivity) may be of iron, nickel and cobalt. The non-ferromagnetic film 3 may be of chromium, palladium, platinum, manganese, silver, indium or aluminium. The films may beformed by vacuum, electrolytic, or chemical deposition. Film 2 having the higher coercivity forms the memory element information being reeorded using write-in matrix conductors 6, 7. Film 1 forms the read-out element, interrogation and read-out conductors 8, 9 being provided. The easy axes of the films 1 and 2 need not be parallel.
Patent GB-897645-A (GB)
Title: An improved fastener
Inventor: FERNBERG ERIC BIRGER
IPC: G05G1/12
Filed: 1959-12-15
Abstract: 897,645. Retaining knobs on shafts. F.T. PRODUCTS Ltd. Nov. 1, 1960 [Dec. 15, 1959], No. 42687/59. Class 80 (2). [Also in Group XXV] A fastener 1 is formed from a single strip of resilient material bent to substantially U-shape so as to have two limbs 2, 3 joined by a web 4, in which each limb is bowed cylindrically about the longitudinal axis of the fastener and is formed with an inwardly and rearwardly directed claw 9 or 10 and wherein the two limbs are formed with aligned external annular ribs 5, 6, 7, 8 which co-operate together to preserve the cylindrical shape of the limbs. As shown, the fastener is also formed with prongs 13, 14 and in use the fastener is applied over the end of a shaft 11 so that the claws 9, 10 engage a peripheral groove 12 therein and a knob 15 is thrust over the end of the shaft bearing the fastener, so that the prongs 13, 14, bite into the bore in the knob while allowing the knob and fastener to be rotated on the shaft. In another arrangement, Fig. 5 of the Complete Specification (not shown), the free ends of the limbs are slit adjacent the ribs and are then bent inwardly to grip the shaft. Specifications 795,479 and 857,910 are referred to.
Patent GB-956304-A (GB)
Title: Embossing material
Inventor: ANDERSON JAMES DUNLAP
IPC: G09F3/02
Filed: 1961-11-30
Abstract: 956,304. Laminates. DYMO INDUSTRIES Inc. Nov. 30, 1961, No. 42810/61. Heading B5N. [Also in Division B6] An embossable material comprises a base 13, capable of embossment to provide permanently offset embossed portions thereon, having a coating 14 which is more brittle than the base so that, upon embossment of the latter, the coating at 24 will fracture at the embossed portions 22 to permit it to be removed from the base in correspondence with the embossed portions, and a removable pressure-sensitive adhesive tear strip 16 overlying the coating and secured thereto so that removal of the tear strip after embossment of the material will remove also the fractured coating in correspondence with the embossed portions. The base may be capable of cold flow embossment, may be of metal, e.g. copper or aluminium, or of plastics, and may take the form of a sheet or strip, possibly a continuous roll of strip. The coating may be provided on one surface of the base, possibly overlying substantially the whole of the surface. The coating may be thinner than the base and may be bonded thereto, the bond being broken upon embossment, in correspondence with the embossed portions, to permit removal of the coating. The coating may be of a colour which contrasts with the colour of the base and may comprise a vinyl chloride solution modified with melamine resin, or a vinyl chloride-vinyl acetate copolymer having reactive carboxyl groups of maleic acid. The remote side of the base 13 may carry a layer of adhesive 17 which may be provided with a tear-off strip 18. An embossed article is produced by applying; to one surface of a base material capable of embossment, a coating which is more brittle than the base, securing a removable pressure-sensitive adhesive tear strip over said coating, embossing the material to produce offset embossed portions thereon and to fracture the coating in correspondence with the offset embossed portions, and removing the coating in correspondence with the embossed portions by removing the tear strip.
Patent GB-1273435-A (GB)
Title: Improvements in and relating to fuel injection pumps for multi-cylinder internal combustion engines
Inventor: GARTNER HANS
IPC: F02M41/06
Filed: 1969-08-29
Abstract: 1,273,435. Fuel injection pumps. BARKAS WERKE VEB. Aug.29, 1969, No.43054/69. Heading F1A. A fuel injection pump comprises a rotary distributor 3 drivingly coupled to a drive-shaft 2, and pumping pistons 11 arranged in a bore 12 of a stationary piston carrier 10 below the shaft and distributor which are actuated by means of levers 7 actuated by a cam 4 on the drive-shaft. On the injection stroke fuel is driven from the pumping chamber 13 via pipes 19 and 20, annular groove 22, bore 24 and through a valve 25 to the outlet bores 27. Fuel enters the chamber 19 from a pump 31 via a bore 33, groove 34, and bores 35, 36 and 30, the pistons being moved apart by the pressure of pump 31. A spring 32 may be provided to aid the return stroke of the pistons. The coupling between the shaft 2 and distributor 3 is provided in a recess 14 in the cam wheel; a cruciform plate (18) Fig. 3 (not shown) having grooves (17) is disposed in the recess, opposite grooves being engaged by pins (15) on the cam and claws (16) on the distributor.
Patent GB-1323567-A (GB)
Title: Process and apparatus for detecting pinholes in dielectric webs
IPC: G01N27/92
Filed: 1970-09-09
Abstract: 1323567 Detecting pinholes in plastic sheet UNION CARBIDE CORP 9 Sept 1970 [10 Sept 1969] 43059/70 Heading G1U A system for detecting pinholes in a plastic web 11, Fig. 1, of the type in which the web is drawn over an earthed roller 12, and sparks that pass from a detector electrode 14 maintained, by a supply 19, at a high potential (e.g. 5 to 15 kv) are detected by a device 21 (e.g. a thyratron or thyristor) responsive to current surges from the supply 19, is characterized in that the web 11 is given an initial charge prior to reaching the detector electrode 14 by a primary electrode 13 maintained at a high potential (e.g. 3 to 10kv) by a supply 17. As a result since the web is charged when it reaches the detector electrode 14 only a small current flows from that electrode except when a pinhole is present. Thus the current surges in the detector electrode supply 19 as a result of pinholes are considerably larger relative to the normal detector electrode current than they would be without precharging the web as in prior systems. This enables small pinholes (e.g. 1 mil diameter) to be detected in web having a high dielectric constant even when the web is wide (e.g., 4ft). After the web has passed the detector electrode, any charge on it is removed by a third electrode 16. Preferably the detector electrode 14 is comb shaped Fig. 2, and shielded by dielectric strips 15, Fig. 4, so that the charge that flows from it is confined to a narrow strip across the web. The spark detector 21 may actuate a counter, or web marker, or the like.
Patent GB-1138037-A (GB)
Title: Control for hydroelectric generators
IPC: H02P9/00
Filed: 1967-09-22
Abstract: 1,138,037. Automatic power control systems. WESTINGHOUSE ELECTRIC CORP. Sept. 22,1967 [NOV.29, 1966], No.43183/67. Heading G3R. A control system for a turbine-driven hydroelectric generator delivering power in accordance with an assigned power signal comprises a circuit for integrating the signal; a first variable impedance for controlling the turbine when the signal does not change abruptly; a circuit for sensing an abrupt change in the signal; and a second variable impedance operative, when such an abrupt change is sensed, to control the turbine at a faster response rate than the response rate effected by the first impedance. Thus the arrangement is such that when the assigned power signal does not change abruptly, i.e. during normal operation, the response rate of the control system is relatively slow and the power output of the generator gradually changes to meet the required demand; however, should there be a sudden stepchange in the assigned power signal, as may happen during an emergency, then the control system has a fast response resulting in a correspondingly rapid change in generator output. The system may also include a circuit which ensures a very slow response should the assigned power signal fail, or when switching from a manual control to automatic control, to avoid excessive disturbance due to a wide difference in, for example, the manual power setting and the power setting dictated by the automatic control system. A suitable arrangement of integrating amplifiers and relays for obtaining the required response characteristics is described with reference to the drawing (not shown) accompanying the Specification.
Patent GB-1129227-A (GB)
Title: Solid state gating circuit
Inventor: MOORE DOUGLAS ARTHUR
IPC: H03K17/16
Filed: 1967-09-22
Abstract: 1,129,227. Transistor switching circuits. NORTHROP CORP. 22 Sept., 1967, No. 43314/67. Heading H3T. A gating circuit comprises a bi-stable circuit including two transistors 28, 29 and a Zener diode 30 connected between the base of one transistor and the collector of the other, the arrangement being such that both transistors are non-conductive in the absence of an input signal and that the input is removed from the output by a signal applied to the output. With an input signal applied at 16, transistor 29 is conductive, transistor 28 is non-conductive and the input signal passes to the output line 21. By momentarily closing switch 26 at the output, the bi-stable circuit 28, 29 is triggered to shunt the input signal to earth through transistor 28. A capacitor 35 provides a delay to prevent the triggering of circuit 28, 29 by transients. The circuit is restored by opening switch 45.
Patent GB-937545-A (GB)
Title: Photoelectric weft stop motion for ribbon looms
IPC: D03D51/34
Filed: 1961-12-04
Abstract: 937,545. Weftstop motions. J. MIYELLER. Dec. 4, 1961 [Dec. 5, 1960; Nov. 27, 1961], No. 43331/61. Class 142 (2). A photo-electric weft detector 7, wherein a beam of light 8 is reflected by a spool 9 upon depletion of weft, has an additional reflector 17, supported by the weft, which drops into the path of light, upon weft breakage, to stop the loom. The weft 11 is withdrawn over eyelets 12-15 and one of these may be used as the additional reflector. The weft spool may have reflecting surfaces of a number of configurations (Figs. 4 to 9, not shown).
Patent GB-1388321-A (GB)
Title: Voltage-dependant capacitance diodes
IPC: H01L29/93
Filed: 1972-09-19
Abstract: 1388321 Varactor diodes PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 Sept 1972 [22 Sept 1971] 43331/72 Heading H1K A varactor diode with increased capacitance variation comprises a first region extending to one surface of the body where it has a surface layer of lower doping level and surrounds a second region of the opposite conductivity type, a channel stopper region of the same conductivity type as, but more heavily doped than, the first region surrounding the second region from which it is spaced, and a field electrode contacting the channel stopped region and overlying an insulating layer situated on the surface between the channel stopper region and the second region to influence an inversion layer extending between these two regions, the first and second regions but not the field electrode being provided with external connections. As shown, Fig. 1, a P type Si body 1 doped with B is thermally oxidized to produce an oxide layer 2 and to simultaneously form an inversion layer 3 at the surface due to outdiffusion of impurities. Alternatively the inversion layer may be produced by diffusion or ion implantation of donors or by epitaxy. The density of fixed charges in the oxide layer may be increased by ion implantation. An annular window is opened using a photoresist and B is diffused-in to form a highly-doped channel stopper region 5 and a stabilizing layer 5 of pyrolytic oxide containing a high density of fixed positive charges is deposited by sputtering. A window is then opened and P is diffused-in to form an N + type diode region 7, the regions 5 and 7 are exposed, a protective layer 8 of Si3N4 is deposited, and the windows are reopened. The surface is then metallized to produce a contact 9 on diode region 7 and a field electrode 10 overlying the insulating layers and connected to channel stopper region 5. The body 1 and the diode region 7 are provided with external connections but the field electrode 10 is left floating. In modifications the field electrode 10 is combshaped with fingers extending towards electrode 9 (Fig. 3), the diode electrode 9 extends on to the oxide and has fingers extending outwards which are interdigitated with fingers of the field electrode 10 (Figs. 4 and 5), and the diode electrode is of spiral form with the field electrode spiralling between its turns. The diode region contact may have an "overlay" type structure and may extend above or below the field electrode. The electrode material may be Al or polycrystalline Si and the semiconductor material may also be Ge or a III-V compound.
Patent GB-1066759-A (GB)
Title: Method of producing hydrophilic polyurethane foam
IPC: C08G18/80
Filed: 1965-10-13
Abstract: Hydrophilic polyurethane foam is prepared by reacting (i) a polyisocyanate, at ambient temperature and in the presence of water, a catalyst for the reaction and a surface active agent, with (ii) a polyester or polyether based polyol and (iii) a monoalkoxypolyethylene glycol of the formula RO(CH2-CH2-O)nH wherein R is an alkyl radical and n is an integer from 3 to 30, or a reaction product of said monoalkoxypolyethylene glycol with a polyol or a polyisocyanate. Suitable polyols for reaction with the glycol are ethylene glycol, 1,4-butylene glycol, glycerine, 1,2,6-hexanetriol, trimethylolpropane, pentaerythritol and alpha-glucose and beta-glucose derivatives, and suitable polyisocyanates are a mixture of 2,4- and 2,6-toluylene diisocyanates, 1,5- and 1,4-naphthylene diisocyanates, 4,41-diphenylmethane diisocyanate, paraphenylene diisocyanate, hexamethylene diisocyanate, 2,4-toluylene dimer, 1,4-cyclohexane diisocyanate, 4,41, 411-triphenylmethane triisocyanate and a polymethylene polyphenylisocyanate having 3, 4 or 5 aromatic rings.  A mixture of an organo-tin compound and a tertiary amine is suitable as a catalyst and a polydimethylsiloxane is a suitable surface-active agent.  Polypropylene glycol is the polyether used in the examples.
Patent GB-1401477-A (GB)
Title: Probes for use within body cavities and devices using such probes
IPC: A61M25/00
Filed: 1972-09-20
Abstract: 1401477 Probes, pacing electrodes ELECTRO-CATHETER CORP 20 Sept 1972 [20 April 1972] 43553/72 Heading A5R An elongated tubular assembly for insertion into body cavities has at its forward end a probe 16 including spaced proximal and distal members 38, 40 and inflatable means 70 interconnecting the members for inhibiting the transfer of forces therebetween, the rearward end of the asembly being formed with means communicating with the forward end and receiving a fluid for inflating the inflatable means 70. The assembly may be used with a heart pacemaker machine, an annular electrode 54 being secured to member 38 and a cupshaped electrode 56 secured by solder 60 to distal member 40. The members 38, 40 are connected by a balloon. The probe is con nected by tubing 12 to an adaptor 14 having a branch 22 receiving electrical conductors 24, 26 for coupling to the electrode connectors 68, 62. A syringe 36 vented to atmosphere is attached to adaptor 14 and provides means for inflating the balloon 70 and the adaptor 14 includes check valves for controlling the flow of air or other fluid therethrough. The assembly may also be used to remove clots from the circulatory system.
Patent GB-1511768-A (GB)
Title: Preparation of unsaturated carboxylic acids from the corresponding aldehydes
IPC: C07B61/00
Filed: 1976-10-20
Abstract: 1511768 (Meth)acrylic acids MONTEDISON SpA 20 Oct 1976 [23 Oct 1975] 43575/76 Heading C2C [Also in Division B1] (Meth)acrylic acids are prepared by reacting (meth)acrolein in the vapour phase with molecular oxygen or an oxygen-containing gas at 200-350‹ C. in the presence of a catalyst of empirical formula in which a is 0À5 to 10, b is 0À5 to 8, c is 1-6, d is 0À1 to 3, a+b+c is at least 8À5 and e is chosen to satisfy the valencies of the other elements. Gaseous diluents, nitrogen, carbon dioxide and water-vapour may be used.
Patent GB-951330-A (GB)
Title: Improvements in aeroplanes
Inventor: BRENNAN MAURICE JOSEPH
IPC: B64C3/40
Filed: 1960-12-19
Abstract: 951,330. Aircraft. VICKERS-ARMSTRONGS (AIRCRAFT) Ltd. March 19, 1962 [Dec. 19, 1960], No. 43673/60. Headings B7G and B7W. An aeroplane comprises a body or fuselage 20 (Fig 1), main wings 21, 22 which may be pivoted about points 211, 221 into an outspread or a swept-aft position, and fore-wings 23, 24 which are capable of being moved into inoperative positions subsequent to or concurrently with the forward sweeping movement of the main wings This arrangement prevents pitching of the aircraft when the main wings are in the outspread or low-speed position As shown in Fig 1, the fore-wings comprise guide members which slide in tracks 26 arranged within the fuselage; when the main wings move into the outspread position, the fore-wings are automatically retracted by means of links 27. Means including a catch lever may be provided to enable the main wings to be folded back to a fully swept position for hangar stowage &c. In a modification, Fig 11, the fore-wings 123, 124 are hinged so as to be folded down alongside the body or into recesses, and are moved by fluid-pressure jacks 31, 32
Patent GB-1155997-A (GB)
Title: Antistatic Agents and Their Use.
Inventor: CLACHAN MARGARET LOUDON
IPC: C08J7/044
Filed: 1966-09-30
Abstract: 1,155,997. Antistatic coatings. BEXFORD Ltd. 27 Sept., 1967 [30 Sept., 1966], No. 43843/66. Heading B2E. [Also in Division G2] A film base is rendered, antistatic by coating with a layer of a Na, K or Li salt of a copolymer of (i) an α,#-unsaturated dicarboxylic acid or anhydride thereof with (ii) an ethylenically unsaturated co-monomer. Specified acids (i) are maleic, itaconic, citraconic and dimethyl maleic acids. Compounds (ii) may have the general formula CH 2 =CHR'R", a list of suitable groups R', R" being given: specified compounds are ethylene, styrene, vinyl toluene, methyl vinyl ether, ethyl acrylate, methyl methacrylate, acrylamide, vinyl chloride, acrylonitrile, vinyl acetate, isopropenyl acetate. The copolymer salt may contain 20-50 mole % of component (i), with 20-100% of the carboxylic acid functions present in salt form. The coating may be applied in amount above 0.05 mgm/dm<SP>2</SP> by dip- or air-knife coating from aqueous or aqueous/organic media wherein copolymer and an alkali metal hydroxide have been mixed. Specified wetting agents, pigments, supplementary antistatic agents and agents to improve slip characteristics may be included. The film base may be polyethylene terephthalate, polycarbonate or a cellulose ester (e.g. triacetate, secondary acetate, acetate butyrate), each of which may be coated with gelatin or specified polymers. The coated bases may be used in photography (see Division G2) and drafting.
Patent GB-1362416-A (GB)
Title: Electrical connector for insulated wire
IPC: H01R4/24
Filed: 1971-09-22
Abstract: 1362416 Terminals AMP Inc 22 Sept 1971 [27 Oct 1970] 44076/71 Heading H2E A connector for an insulated wire consists of two plates 6, 34 with slots 8, 8<1>, attached to a base 46. The plates are bowed, and resiliently held by upright supports 2, 4, 26, 28, the resiliency forcing the corners of the sides of the slots to cut through the insulation 52 and bite into the conductor 50 of a wire which is forced into the slots. The supports have their resilient characteristics modified by stiffening flanges 56, 60, 58, 62. In an alternative embodiment (Fig. 4, not shown) the connector is made from a single sheet of metal, no stiffening flanges are provided, and the edges of the slots are flared rather than stepped. In a simpler version, there is only a single plate 6.
Patent GB-1281596-A (GB)
Title: Improvements in and relating to servo motors, especially for vehicle braking systems
Inventor: WEATHERHOGG CHARLES BRIAN
IPC: B60T13/567
Filed: 1969-09-06
Abstract: 1281596 Fluid pressure brakes GIRLING Ltd 3 Sept 1970 [6 Sept 1969] 44179/69 Heading F2F [Also in Division F1] The peripheral head 38 of a rolling diaphragm 36 is clamped between an outwardly and radially directed shoulder 22 at one end portion of a generally cylindrical vacuum motor casing 10 and the rim 30 of an internal annular plate 26; the rim 30 being interposed between the head 38 and a circular row of inwardly directed dimples 24 formed in the casing adjacent the shoulder 22 thereof. The diaphragm 36 forms with the casing 10 a chamber 32 having a vacuum connection 56 and being in open communication through a spacer sleeve 58 with a chamber 46 hounded by a further rolling diaphragm 50 and an annular plate 40. The other side of diaphragm 50 forms with the casing end a chamber 48 connected by a duct 72 with a further chamber 34 bounded by diaphragm 36 and the annular plate 26. Chamber 48 and hence 34 may be connected to vacuum in chamber 46 or to atmospheric pressure according to the seating at 92, 90 of a known valve closure member 88 moved axially by a manual push rod 84. In operation and on pushing rod 84, diaphragms 36, 50 move to the left against a spring 68 and thus displace an output rod 82 which operates a brake master cylinder.