baber/WOPTO huggingface dataset:
Patent GB-1397555-A (GB)
Title: Coupling circuits
IPC: H03F3/189
Filed: 1971-08-25
Abstract: 1397555 Amplifying circuits; filters MARCONI INSTRUMENTS Ltd 7 Aug 1972 [25 Aug 1971] 39801/71 Headings H3T and H3U A circuit for coupling the output of an active device 1 in the form of a current source to the input of a further active device includes a first tuned circuit comprising a first parallel combination formed by an inductor 4 and an effective shunt resistance 5, a reactance 8 having one terminal connected to a source of reference potential and a first capacitor 6 coupling the other terminal of the reactance 8 to the first parallel combination, and a second tuned circuit comprising a second parallel combination formed by a second capacitor 7 and a second effective shunt resistance 10, the reactance 8 and a second conductor 9 connected between the second parallel combination and the other terminal of the reactance 8, such that the frequency response curve is substantially symmetrical about the centre frequency. In a second embodiment (Fig. 11, not shown) the arrangement is reversed, i.e. the inductors 4, 9 are replaced by capacitors (13, 16) and the capacitors 6, 7 by inductors (14, 15).
Patent GB-1032315-A (GB)
Title: Improvements in or relating to umbrellas
IPC: A45B25/06
Filed: 1964-09-30
Abstract: 1,032,315. Umbrellas. A. FULTON. Sept. 30, 1964, No. 39829/64. Heading A4P. A runner 2, movable along a solid or tubular umbrella stick 1, comprises an outer tubular member 8 axially displaceable relatively to an inner tubular member 7, which is slidable on the stick to open and close the frame, and two pairs of rollers 9, 10, the rollers 9 being engaged in a circumferential groove 3 near the upper end of the stick to lock the frame in open position and the rollers 10 being engaged in a circumferential groove near the handle end of the stick to lock the frame in closed position. The members 7, 8 and the rollers, which taper towards their ends, are preferably of plastic. The rollers are carried rotatably in axially spaced slots in the member 7 which has an annular ridge 12 providing friction between the members 7, 8. In the upper locking position, shown in Fig. 1, the runner abuts stops 6 and the rollers 9 are displaced into the groove 3 by a wall 11. To close the umbrella frame, the member 8 is displaced downwardly relatively to the member 7, freeing the rollers 9 from the groove 3, and when a shoulder 14 engages the rollers 10 further downward movement pulls the inner sleeve downwards, the rollers 9, 10 rolling freely on the stick until the rollers 10 are thrust into the circumferential groove near the handle by the shoulder 14. Movement of the member 7 is thereby arrested but downward movement of the member 8 continues until the annular wall 18 locks the runner 10 in that groove.
Patent GB-950346-A (GB)
Title: Cationic sizing compositions
IPC: D06B23/16
Filed: 1961-11-08
Abstract: Improved solubility or dispersibility in water of solid cationic sizing agents, especially the hydrophobic waxy beater additives used in paper manufacture, is obtained by incorporation of a water-soluble cationic quaternary ammonium compound containing at least one alkyl substituent of at least 12 carbon atoms.  There may be 0.05-0.5% of such quaternary ammonium compound in the water in which the size is dispersed.  Examples are of preparing, and sizing kraft pulp with, aqueous preparations of a size obtained by reacting 1 mol of pyridine with a copolymer of 1 mol of vinyl stearate and 1 mol of vinyl chloroacetate, the solubilizing agent being N-octadecylpyridinium chloride, octadecyl trimethyl ammonium chloride, hexadecyl trimethyl ammonium chloride hexadecylpyridinium chloride, tallow trimethyl ammonium chloride, dodecyl trimethyl ammonium chloride or dioctadecylamidopropyl dimethylammonium nitrate.  Specification 864,336 and U.S.A. Specification 2,946,445 are referred to.
Patent GB-942422-A (GB)
Title: Anionic exchanger resins
Inventor: WARNECKE DIETER
IPC: C08F8/44
Filed: 1961-11-08
Abstract: Anionic exchanger resins comprise a cross-linked copolymer of a monovinyl aromatic hydrocarbon and a divinyl hydrocarbon containing a plurality of groups, namely, <FORM:0942422/C3/1> where R1-5 are the same or different and are H, alkyl or aryl, n is 1 or 2 and m is 1- 5. The resins are produced by mixing at below 10 DEG C. with a cyclic imine, namely, <FORM:0942422/C3/2> where R1-5 are as before, a copolymer of a monovinyl aromatic hydrocarbon and a divinyl hydrocarbon which contains a plurality of halogeno-alkyl radicals, and then maintaining at 10-50 DEG C. whereby amination and polymerization take place. The imine, e.g. ethylene imine, may be brought on to the halogeno-alkyl radicals dissolved in a swelling agent for the halogeno-alkylated copolymer, e.g. dioxan or acetone, or the copolymer may first be treated with a swelling agent and then with the imine, e.g. using 4-5 mol. monoimine per mol halogeno-alkyl radical. The monovinylhydrocarbons may be styrene, methyl-styrenes, chloro-styrenes, ethyl-styrenes, alkoxy-styrenes or vinyl-naphthalenes.  The divinyl hydrocarbons may be divinyl-benzene or -toluene, or butadiene. The copolymer may be halogeno-alkylated by reaction with monochlorodimethyl ether or aldehyde and hydrochloric acid in the presence of a Friedel-Crafts catalyst.
Patent GB-1136970-A (GB)
Title: Pontoons
Inventor: WISE JACK NELSON
IPC: E02B3/06
Filed: 1966-09-07
Abstract: 1,136,970. Pontoons. IMPERIAL CHEMICAL INDUSTRIES Ltd. 11 Aug., 1967 [7 Sept., 1966], No. 40034/66. Heading B7A. A pontoon comprises a deck 4 provided with at least one float 1 that has been formed from a plastics material as a closed hollow article by rotational moulding. In the embodiment shown, 2 is a length of supporting timber and each float is held between timbers and deck by a flange 5 integrally moulded around the edge of the top of the float, and through which the deck is bolted to the timber. Separate lengths of deck may be placed end to end as at 6 to form the desired structure.
Patent GB-909076-A (GB)
Title: Improvements in and relating to driving mechanisms for electric circuit breakers
IPC: H01H3/60
Filed: 1960-11-22
Abstract: 909,076. Switches held set and freed mechanically. COQ N.V. Nov. 22, 1960 [July 20, 1960], No. 40104/60. Class 38 (5). The switch operating mechanism of Specification 753,754 is modified by replacing the arm 41 and latch 42 by an hydraulic device. Also the toggle 16, 17 may similarly be replaced. The intermediate lever 10, 12 is connected to a piston 27 in a cylinder 28, the spaces on opposite sides of the piston being connected via an adjustable choke valve 32 and a check valve 33 connected by a lost-motion linkage 35, 35a with the handle 19. When the springs 9, 14 are being stressed, the valve 33 allows fluid flow only from right to left therethrough so that clockwise movement of lever 10, 12 by the springs is prevented. The valve 33 is changed over when the handle 19 is returned to the starting position shown, so that if the opening button 48 has been pressed before that, the member 10, 12 moves at a speed controlled by valve 32. In a modification, Fig. 2 (not shown), the piston is driven to the left and the member 10, 12 anti-clockwise to stress the springs by a motor-driven pump. A valve in an exhaust pipe is closed during this movement, but is opened via a snap-mechanism by the member 10, 12 just before the springs are fully strained so that the member 10, 12 can move clockwise to close the switch.
Patent GB-1196309-A (GB)
Title: Improvements in or relating to Vibration Generators
Inventor: WINDER RICHARD HENRY BRYAN
IPC: B66C1/12
Filed: 1968-09-04
Abstract: 1,196,309. Resilient slings. CEMENTATION CO. Ltd. 4 Sept., 1968 [4 Sept., 1967], No. 40272/67. Heading B8H. [Also in Division F2] Elastic cables 3, of nylon, "Terylene" (Registered Trade Mark) or rubber, and an inelastic, e.g. metal, safety cable 6 serve as a vibration isolating suspension: the cable 6 is normally slack and ineffective, but takes the load should the elastic cables break. This combination of elastic and inelastic cables is employed to suspend a vibration-generating load 1 from a crane hook 2.
Patent GB-1267284-A (GB)
Title: Three-phase transformer with tap changer
Inventor: SCHEUBECK EGON
IPC: H01F29/04
Filed: 1970-08-21
Abstract: 1,267,284. Current transformers. E. SCHEUBECK. 21 Aug., 1970 [21 Aug., 1969], No. 40380/70. Heading HIT. In a star-connected three-phase current transformer each phase consists of a primary winding 4, 5, 6, a secondary tapped winding 7, 8, 9, a tap changer 1 comprising pre-selector contact switch 10, on-load changeover switch, reversing switch 12, and an auxiliary switch 18 which connects the centre of each stage winding through a resistor 25, 25A, 25B to the star point 2 when the reversing switch is operated during tap changing. In operation when 7, 8 or 9 is to be reverse connected one pre-selector arm (e.g. arm 14) is moved to a new position, contacts 19, 20, 21 are closed, using a drive 15 through gearing 27, reversing switch 12 is operated by the drive 15, and then contacts 19, 20, 21 are opened again. The contacts of each of the switches 10, 11, 18 are arranged in a common plane and the switches are arranged substantially coaxially.
Patent GB-1086338-A (GB)
Title: Basically substituted derivatives of 5,6-dihydro-dibenzo-[b,e]-azepine-6,11-dione-11-oxime
Inventor: AICHLINGER GERD
IPC: C07D223/20
Filed: 1966-09-09
Abstract: The invention comprises compounds of the Formula I wherein each of R1 and R2 is hydrogen, C1- 4 alkyl or a basically substituted alkyl radical-AB, with the proviso that at least one of R1 and R2 is a basically substituted alkyl radical, each of R3 and R4 is hydrogen, halogen, C1- 4 alkyl or C1- 4 alkoxy, A is a straight- or branched-chain C1- 6 alkylene radical and B is a basic radical containing nitrogen in an amino or imino group or as a heteroatom in a cyclic structure; pharmacologically acceptable acid addition salts thereof; and their preparation by (a) reacting a compound of the Formula II with a hydroxylamine of the formula H2N-O-R2 or a salt thereof, or (b) reacting a compound of the Formula III with a reactive ester of an alkanol or hydroxyalkylamine of the formula X-R2, or (c) reacting a compound of the Formula IV with a reactive ester of an alkanol or hydroxyalkylamine of the formula X-R1, or (d) reacting a compound of the Formula V with a reactive ester of a hydroxyalkylamine of the formula X-A-B, wherein R1, R2. R3 and R4 are as defined above and X is the radical of a reactive ester, with the provisos that in (b) and (c) R2 may not be hydrogen and in (c) R1 may not be hydrogen. <FORM:1086338/C2/1> <FORM:1086338/C2/2> <FORM:1086338/C2/3> <FORM:1086338/C2/4> <FORM:1086338/C2/5>
Patent GB-1007553-A (GB)
Title: Method for the surface treatment of metal parts
IPC: B24B31/14
Filed: 1961-11-10
Abstract: 1,007,553. Rumbles &c. CARL KURT WALTHER, [trading as FIRMA WALTHERTECHNIK CARL KURT WALTHER]. Nov. 10, 1961 [Nov. 10, 1960], No. 40400/61. Heading B3D. A method for the removal of burrs in a finishing apparatus of the barrel, bell, vibratory or drum type using grinding or polishing elements, e.g. balls, with processing agents in solution, emulsion or paste form, includes the use with such elements of small bodies of organic or inorganic stable materials which are insoluble in the processing medium, are round or partially round, and range in size from 0À1 to 2À0 mm. diameter. The bodies may take the form of polystyrene pellets of 0À5 to 1 mm. diameter, or if of P.V.C., 0À5 to 0À8 mm. diameter, and may be of spherical, partly spherical, cylindrical, elliptical or egg-shape. The materials used for the pellets may also include rubber, natural or synthetic, or such synthetic materials as poly-acrylo compounds or celluloid.
Patent GB-960552-A (GB)
Title: Improvements in frog cushioning device for horses
IPC: A01L7/02
Filed: 1962-10-27
Abstract: 960,552. Horse shoes. J. MURRAY. Oct. 27, 1962, No. 40699/62. Heading A1M. A frog-cushioning device comprises a thin flexible base 1 approximating in shape to the plan of a horse's foot, formed with apertures 5 for ventilating and cleaning purposes, and having a pad 2, 3 of rubber or the like disposed transversely across the heel portion of the base on both sides thereof. The device is held in position with the pad 2 in contact with the frog, by a horse shoe 4 the ends of which are received in recesses in the pad 3 which projects at each end beyond the upper pad 2. The pads 2, 3 may be formed with perforations and the upper surface of pad 2 may be grooved. The pads may also decrease in thickness towards the centre of the device and may be secured to the base by an adhesive or by vulcanisation. The base 1 may be of sheet rubber, reinforced with fabric.
Patent GB-1441386-A (GB)
Title: Scanning apparatus
IPC: G01N21/89
Filed: 1972-09-02
Abstract: 1441386 Optical scanning SIRA INSTITUTE 20 Aug 1973 [2 Sept 1972] 40805/72 Heading G2J Scanning apparatus for scanning a surface 9 e.g. to detect flaws comprises a movable optical component 6 arranged to deflect the radiation to a varying extent so as to cause it to scan across the surface 9 and an astigmatic focusing device 8 incorporated between the surface 9 and the movable optical component so that the movable optical component and the surface are at conjugate foci with respect to the focusing device 8 in one plane only. In one embodiment Fig. 1 a beam 2 from laser 1 passes through a cylindrical lens 3 and a spherical lens 4 before reflection at a plane mirror 5 and a polygonal mirror 6 rotated by a motor 7. The scanning beam passes through a further cylindrical lens 8 before reaching the surface 9 to be inspected and light passing through or reflected from the surface is detected e.g. by photo-cells. The cylindrical lens 8 may be replaced by a concave cylindrical mirror Fig. 5 (not shown).
Patent GB-1441755-A (GB)
Title: Process for mass dyeing polyesters
IPC: C08J3/22
Filed: 1973-08-31
Abstract: 1441755 Process for mass dyeing polyesters EASTMAN KODAK CO 31 Aug 1973 [31 Aug 1972] 41034/73 Heading C3R A process for mass dyeing a high molecular weight linear polyester comprises mixing a powdered, meltable or softenable dye with a portion of the polyester in granular form in an amount of from 2 to 10% by weight of the portion, heating the mixture to a temperature at least high enough to soften the dye but insufficient to melt the polyester granules for sufficient time to heat-set at least 90% of the dye into the polyester granules, blending the dyed granules with the remainder of the polyester and passing the blend into a screw extruder. The example describes dyeing polyethylene terephthalate with 2-(2-quinolyl)-1,3- indandione.
Patent GB-1055881-A (GB)
Title: Improvements in or relating to methods of providing a blackened surface layer on metal substrate
IPC: C23C22/84
Filed: 1963-10-17
Abstract: A method of providing a blackened surface layer on a metal substrate comprises the steps of providing a layer on the substrate of a molybdate and/or tungstate of one or more of the elements Li, Na, K, Rb, Cs, Be, Mg, Ca, Ba and Sr and heating the substrate and the layer to a temperature of between 600 DEG  and 700 DEG C. in a reducing atmosphere whereby the molybdate and/or tungstate of the layer is reduced either to produce metallic tungsten and/or molybdenum and the oxide or hydroxide of the listed elements or less completely to produce a mixture including metallic tungsten and/or molybdenum and the oxide or compound is lithium trimolybdate Li20. 3Mo03 which may be applied e.g. to nickel, molybdenum, copper, iron or steel by spraying or rolling a solution in aqueous alcohol which may also contain a nitrocellulose binder.  In examples, coatings are applied to nickel-plated steel strip to be fashioned into anodes for electronic valves, to nickel cathodes and to grids of molybdenum and tungsten wires.  The process may also be applied to jewels and gold ornaments.
Patent GB-931393-A (GB)
Title: Process for the polymerisation of lactams
Inventor: BUCKLEY GERARD DUNSTAN
IPC: C08G69/20
Filed: 1960-11-29
Abstract: In a process for the alkaline polymerization of at least one monomeric lactam having at least six carbon atoms in the ring, wherein the lactam is maintained at a temperature above its melting point, a compound having the formula L(MT)nRP where n is an integer from 1 to 10, L and P are the same or different alkyl, aryl or aralkyl radicals containing from 1 to 7 carbon atoms, which radicals may contain one or more substituents which are inert in said polymerization reaction, M and R are the same or different radicals of the formula <FORM:0931393/IV(a)/1> in which X, Y and Z are oxygen, sulphur or the imino radical and T is a divalent hydrocarbon carbon containing from 2 to 8 carbon atoms, which radical may contain one or more substituents which are inert in said polymerization reaction, or a salt of said compound is added to said lactam, either as such or after being dissolved in a suitable solvent.  Specified lactams are S -caprolactam, enantholactam, capryllactam, dodecanolactam, a -methyl-S -caprolactam, b :d -dimethyl-S -caprolactam and b -phenyl-S -caprolactam.  Specified additives are bis - (N - phenylcarbamoyloxy) - 1 : 4 - butane, bis-N : N1-(ethoxycarbonyl) hexane-1 : 6-diamine bis-(p-ethoxycarbonyloxy) benzene, bis-(nipropoxycarbonyloxy)-1 : 2-ethane, bis-(methoxycarbonyloxy)-p-xylene, bis-(N:N1-(ethoxythiocarbonyl) butane-1 : 4-diamine, bis-(N-benzylthiocarbamoyloxy)-1 : 6-hexane, N-(2-ethoxycarbonyloxyethyl) ethyl carbamate and bis-4 : 41-(ethoxycarbonyloxymethyl)-benzyl carbonate.  The polymerization may be effected in the presence of finely divided metals, glass fibres or graphite.  In the examples, S -caprolactam is polymerized in the presence of sodium methoxide, methanol and:- (1) bis-(N-phenylcarbamoyloxy)-1 : 4-butane and (2) bis-(n-propoxycarbamoyloxy)-1 : 4-butane.
Patent GB-990179-A (GB)
Title: Improvements in or relating to shoe finishing machines
IPC: A43D95/06
Filed: 1961-11-17
Abstract: 990,179. Finishing machines. W. WENTERHOFF. Nov. 17, 1961 [Nov. 19, 1960], No. 41268/61. Heading A3B. [Also in Division F4] A shoe finishing machine comprises a blower arrangement 26 and filter device 28, 30, at least one air outlet nozzle 22, 24 and at least one air suction opening 18, 19 provided in the region of the working stations, the air outlet nozzle 24 being supplied with compressed air and being disposed below the working stations on a part of the machine facing the operator and directed approximately horizontally towards a suction opening 19 disposed in the front wall 20 of the machine. The filter unit comprises a cyclone filter 28 followed by a cloth filter 30. The air is recirculated through the system or a part is freed to the atmosphere through the cloth filter 30 by several alternative systems which are described. The air flow may be capable of regulation through ducts 23, 31, 32 and 33. The two suction channels 18, 19 are formed by an adjustable screen 17, the channels and nozzles extending across the width of the machine. The tools may be mounted on a spindle 12 or fixed to the frame of the machine, i.e. tools 13, 14.
Patent GB-965784-A (GB)
Title: Cable strapping tools
Inventor: PRICE NORMAN WILLIAM
IPC: B65B13/34
Filed: 1961-11-17
Abstract: 965,784. Strapping tools. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. Nov. 12, 1962 [Nov. 17, 1961], No. 41323/61. Heading F2G. A strapping tool for fixing a binding strap in position around a bundle of wires, cables &c. by a stud 4 passing through adjacent holes in overlapping portions 5, 6 of the strap, the holes being part of a series of holes along the length of the strap, comprises in combination a jaw 1 for positioning between the strap and the bundle, retainer means on that jaw for retaining the stud 4 in position as an anchor for one end 5 of the strap, a jaw 2 having thereon guide means for guiding the other end of the strap in overlapping relation with the anchored end of the strap, pin means 11 on the jaw 2 biased, as by a spring 9, towards the strap and adapted to engage a hole in the free end of the strap to prevent movement thereof in a direction which slackens the strap and to be retractable to allow movement of the free end of the strap in a direction which tightens the strap, the pin being positioned to engage the said hole when the latter is centred on the stud, and link means linking the jaws and adapted to allow closure thereof to force the stud in the hole centred thereupon and to retract the pin. As shown in Fig. 4, the jaws 1, 2 form part of a pair of longnosed pliers, the jaw 1 having a slot for the stud 4 which is anchored in the end 5 of the strap and the free end of the strap passing between the guide walls 8<SP>1</SP> on the jaw 2. The pin 11 holds the strap tensioned and closure of the jaws forces the stud through a pair of registered holes in the strap. In a modification, the jaw 2, Figs. 5 and 6, mounts a push rod 14, operated by a trigger 15 on the jaw 1, connected to a shuttle 17 slidable in the jaw 2 and carrying the spring-biased pin 19 for tensioning the strap; a guillotine 21 is provided for cutting the strap. In a further modification, the jaw 1, Fig. 7, has an arm 24, slidable between walls 27 on a body member 28, having fixed therein a pin 25 slidable in an inclined slot 32 in the head 33 of a thumb-operable slide 34, the head bearing against a spring-returned guillotine 21. A push-rod 14 is biased by a spring 23 against a trigger 15, and a pin 50 has an extension 51 which bears on a pawl 11 pivoted in the member 28. A stud 4 is inserted in the jaw 1 and the strap is anchored thereto by operating the thumb pad 45, the strap being passed around the bundle of wires and under the pawl 11 and the guillotine 21 so that squeezing of the trigger 15 causes the push rod 14 to move forward to tension the strap. Release of the trigger allows the push rod to ride up on the sloping face 20 thereof and is returned to the initial position by the spring 23, the pawl 11 engaging the strap to position a hole therein above the stud 4. Pressure on the pad 45 forces the slide 34 forwards and causes the pin 25 to lift the jaw 1 to force the stud into the other adjacent hole in the strap and lift the pawl 11 from that hole to release the strap; the guillotine simultaneously severs the strap.
Patent GB-944919-A (GB)
Title: Improved display container for merchandise
Inventor: CLAPP DEREK KEITH
IPC: B65D5/50
Filed: 1961-11-18
Abstract: 944,919. Display containers. MARDON, DON & HALL Ltd. Sept. 24, 1962 [Nov. 18, 1961], No.41349/61. Heading G5C. A display container for a single article comprises a tubular member of triangular crosssection, the tube being cut through panels 2, 3 dividing the tube into sections, panels on one side of each cut being scored and bent to form wedge shaped pockets to accommodate the adjacent end of the next section, the sections being bent up to embrace an article, means being provided at the apex 7 to hold the article and at the ends of the tube to interlock and maintain the container erected. Panels 18 are formed by cutting from the apex down perpendicularly to points 12 and extending the cuts obliquely to points 12<SP>1</SP>, scoring along lines 19, 20, 21 and folding down. Alternatively the cuts may extend to the panel 1 to form panels 30. Holding means may comprise apertures 35, 36 or panels formed by scoring lines 37--39. A score 27 along the length of the tube enables it to be folded flat prior to erection. Fig. 4 shows an arrangement forming a four-sided container for an Easter egg. Fig. 5 illustrates a threesided container for a bottle, in which panels 2, 3 are cut away at the tube ends to enable panel 1 to be curved round to interlock at the top.