baber/WOPTO huggingface dataset:
Patent GB-444252-A (GB)
Title: Improvements relating to the spindles of cap-spinning machines
IPC: D01H1/06
Filed: 1934-09-17
Abstract: 444,252. Cap - spindle apparatus. BRITISH CELANESE, Ltd., 22, Hanover Square, London, and KINSELLA, E., and ADDY, C. W., c/o British Celanese, Ltd., Spondon, near Derby. Sept. 17, 1934, No. 26635. [Class 120 (ii)] Cap spindles are adjustably secured in the spindle rail by means of an internally - screwed split collet 19 engaging the screwed end of the spindle and provided with a coned surface 18 adapted to engage a corresponding surface in the spindle rail. The collet is secured by a nut 22 which, as shown, is provided with a conical surface to facilitate centring. The conical surface may extend the full length of the collet and be grooved circumferentially midway to reduce the area of contact.
Patent GB-680178-A (GB)
Title: Improvements in or relating to electrostatic generators
IPC: H02N1/08
Filed: 1950-11-01
Abstract: 680,178. Electrostatic machines. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. Nov. 1, 1950 [Nov. 9, 1949], No. 26676/50. Class 35. The output voltage of an electrostatic generator is made independent of the load current by connecting a non-linear leakage resistor between the separately excited inductor plates and the output terminal. The ratio B<SP>1</SP> between the current and voltage produced by the exciting source, and the magnitude Z of the leakage resistor, are chosen such that when the voltage across the resistor is near the sum of the output and excitation voltages, U and V respectively, its value is equal to - 1/B<SP>1</SP>, but greater, e.g. infinite for lower voltages. In the form shown, the main generator is of known form and comprises inductor plates 1 and screen plates 2 acting on charge-carrying plates 3, 4 mounted on shaft 5 and alternately connected through commutator segments 6, 7 and brushes 8, 9 to the earth 10 and the output terminal 11. The exciting unit comprises two mutually exciting auxiliary generators 20, 30, the output brush 29 of exciter 20 being connected to the inductor plates 1 at potential - V. The leakage resistor connecting the inductor plates to the output terminal to stabilize the output voltage in accordance with the invention, comprises an ordinary resistor 12 in series with a point-to-plane glow discharge device 13, 14 whose spacing is adjustable to vary the output voltage. In a modification in which the main generator is of the double transfer type, such as is described in Specification 643,660, the screen plates 2 are charged at a potential U+V from the output of one of the exciting generators whose other terminal is earthed. The terminals of the other generator are connected to the inductor and output terminal of the main machine. Both exciters thus generate a voltage U+V, instead of V as in the form shown, and an additional leakage resistor is required between the screen plates and earth, as well as between the inductor and output terminal of the main machine as before. When the output voltage is very high the leakage resistor may be connected to the terminal through a potential divider.
Patent GB-1135158-A (GB)
Title: Process for the preparation of phenol addition products
IPC: C08G63/183
Filed: 1967-06-09
Abstract: 1,135,158. Adducts of phenols with polyunsaturated compounds. HENKEL & CIE G.m.b.H. 9 June, 1967 [11 June, 1966], No. 26712/67. Heading C2C. [Also in Division C5] Phenols are reacted with compounds containing two or more unsaturated hydrocarbon radicals separated by a radical containing a polar group, at 120-230‹ C. in presence of an acid aluminium silicate. The products, which appear to be bisphenols or trisphenols, may be oxyalkylated by reaction with, e.g. ethylene or propylene oxide.
Patent GB-532987-A (GB)
Title: Improvements in hook connectors
IPC: B64D17/38
Filed: 1939-09-29
Abstract: 532,987. Hooks. QUILTER, J. R. C. Sept. 29, 1939, No. 26851. [Class 89 (ii)] A hook with jaws f, g hinged at h remote from a supporting strap and provided with complementary recesses f<1>, g<1> for engaging the load, is characterized by the movable jaw being provided with a rounded or bevelled part k, and a ferrule j being capable of sliding longitudinally to maintain the hook closed. The part k is so shaped as to force the ferrule upwardly during the closing, The ferrule is spring pressed and the construction allows of manipulating the hook with one hand when used in harness for aviators.
Patent GB-642535-A (GB)
Title: Improvement in and relating to voltage regulators
IPC: H02P9/14
Filed: 1946-09-06
Abstract: 642,535. Automatic voltage control systems. TRIGGS, W. W. (Electric Machinery Mfg. Co.). Sept. 6, 1946, No. 26881. [Class 38 (iv)] Apparatus for regulating the voltage output of an A.C. generator 11 comprises a tuned circuit 26, 27 and a rectifier 28 for controlling the exciter 17 for the field of the generator. The voltage from generator 11 is fed through a transformer 31 to the circuit 26, which comprises a tunable inductance 36 and capacity 37 forming a series resonant circuit. Thus, any increase or decrease of the output voltage produces an amplified increase or decrease 'of voltage across the capacity 37. This voltage is rectified by the rectifier 28, the rectified output developed across resistor 79 producing a voltage in a field winding circuit 20 of the exciter 17 which opposes the voltage produced by the exciter 17. Since the exciter supplies the field winding of the generator 11, any variation in A.C. output of the generator from a predetermined value results in an alteration of the voltage across the field winding 13 tending to restore the output to the predetermined value. Initial settings of the inductance 36 may be made by means of a switch 55 and screw 47, whilst the voltage across the capacity 37 may be controlled by a variable resistor 61. In a modification, a stabilizing transformer is connected to the output of the exciter to prevent hunting, Fig. 2 (not shown). In a further modification, Fig. 3 (not shown), an additional field winding may be employed for the exciter and the control voltage impressed on that winding.
Patent GB-172750-A (GB)
Title: Improvements in bumpers or guards for automobiles
IPC: B60R19/28
Filed: 1920-09-21
Abstract: 172,750. Dyer, H. W. Sept. 21, 1920. Wheel - guards, obstruction - removers, and safety appliances. - A front or rear guard for a motor vehicle comprises an impact blade spring extending transversely of the vehicle and secured to each side frame by pivoted levers which enables a blow on the guard to be transmitted to all its members. A flat blade spring 13 has its ends 25 bent back, each end being connected by bolts 23 to a lever 21 pivoted at 22 to an adjustable bracket 17 attached to an offset bar 14 on each chassis side frame. The levers 21 are connected together by means of stays 28 and link 31. A cramp 34 at the centre of the spring blade 13 carries a stem 32 which passes through a guide-hole in the link 31 and centralizes a spring 36. In a modification, the stays 28 and link 31 are dispensed with and replaced by a curved spring, and the bracket 34 and spring 36 are replaced by a semi-elliptical leaf spring, the centre of which is attached to the curved spring and the ends carried in two brackets on the blade spring 13. The front bolt 19 of the clip 17 works in an elongated slot in the bracket 14 so that the front of the guard may be adjusted :n its height from the ground.
Patent GB-1440196-A (GB)
Title: Method of producing a specified solder layer thickness in the production of semiconductor components
IPC: H05K3/34
Filed: 1973-06-06
Abstract: 1440196 Soldering LICENTIA PATENTVERWALTUNGS GmbH 6 June 1973 [13 June 1972] 27064/73 Heading B3R A method of producing a solder layer of predetermined thickness in the production of soldered semi-conductor components comprises incorporating in the solder particles of additional material which are substantially unaffected in size by the soldering operation and which are dimensioned to space the parts 1, 2 to be joined by the required solder thickness. The additional material generally forms less than about 12% by weight of the solder. Incorporation of the additional particles in the solder may be effected by mixing the particles into molten solder, rolling the particles into a foil of solder, mixing in pulverized state followed by fusing or sintering. The particles are preferably spherical or cylindrical and the outer surface thereof is such that while capable of being wetted by the solder it is substantially insoluble therein. The self spacing solder may be applied to the joint surfaces by dipping, roll plating, pressing, melting of solder foil, or placing of moulded/stamped preforms, e.g. rings or discs. Specific solders referred to include: 90% Pb 5% In 5% Ag; 60% Pb 40% Sn; 90% Pb 10% Sn; 97% Pb 3% Sn; 80% Au 20% Sn and hard solders. Specific materials of which the particles may be formed and which are referred to include: copper, silver, silver/gold alloys (e.g. 90% Ag 10% Au), tungsten and molybden or particles of these materials coated with nickel, nickel, glass, ceramics or metallized glass or ceramics.
Patent GB-1382979-A (GB)
Title: Concrete cooling tower
IPC: E04H5/12
Filed: 1973-06-06
Abstract: 1382979 Cooling towers ECODYNE CORP 6 June 1973 [30 June 1972] 27069/73 Heading F4K A cooling tower shell is built (e.g. on a foundation 11) from precast concrete elements including wall elements 17 and a louvre blade assembly 18, 19, the arrangement including also a top deck structure 15 consisting of concrete panels 70 in which openings 24 are formed to receive fan stacks 16. A topping layer (130, Figs. 24-26) of concrete is poured over the top deck panel assembly and is formed also to define kerbs (136) forming the perimeter of a basin for hot water to be cooled in the tower (e.g. from distributer pipes 14). Spray nozzle openings 35 (and 140, Fig. 22) are formed in the floor of the basin. The concrete sections are secured together by the welding together of metal plates embedded in the sections. The tower includes the usual fill assembly, drift eliminators, and fans (not shown), and the shell interior is divided by transverse and longitudinal walls 20, 22 into cells, airseal means (134, Fig. 26) preventing air movement between adjacent cells.
Patent GB-939577-A (GB)
Title: Method for manufacture of 5-chloro-2, 4-bis (methylsulfamyl)-aniline
IPC: C07C311/37
Filed: 1962-07-13
Abstract: 5-Chloro-2,4-bis(methylsulphamyl)-aniline is prepared by reacting 4,6-dichloro-1,3-bis (methylsulphamyl)-benzene with urea at a temperature of about 200 DEG C. and recovering the resultant product from the reaction mixture.  Preferably the urea is employed in a stoichiometric excess.  Specification 914,162 is referred to.
Patent GB-1449582-A (GB)
Title: Method and apparatus for producing a slide fastener stringer tape
Inventor: HENNENBERG W
IPC: D03D1/00
Filed: 1974-06-19
Abstract: 1449582 Woven zip fasteners WILLIAM PRYM-WERKE KG 19 June 1974 [29 June 1973] 27177/74 Headings DIE and D1K The disclosure is the same as Specification 1449581 but the claims are directed to a loom and a method of weaving. For Figures see next page
Patent GB-648855-A (GB)
Title: Improvements in and relating to plastic compositions
IPC: C08L91/00
Filed: 1947-10-10
Abstract: A composition to be used in filling cracks, holes, joints, or interstices in plaster, wood, metal, or other materials, is formed from a mixture of a filler, e.g. calcium carbonate, barytes, china clay, barium carbonate, silica, or slate powder, and synthetic or natural drying or semi-drying oils together with metallic driers, the composition being moulded into stick or other form while hot and the ingredients being so proportioned that, on cooling, an oxidized film will be formed on the surface to maintain the remainder in unoxidized condition.  A wax, such as beeswax or that known as "Opal wax," may be mixed with the oil, which may be polymerized or treated with zinc stearate at a temperature slightly above the melting-point of the wax, and colouring-agents may also be included.  The driers are metallic naphthenates, oleates, or resinates, and are preferably incorporated during heating.  Specification 465,203 is referred to.
Patent GB-1179963-A (GB)
Title: Improvements in or relating to Apparatus for Feeding Rod-Like Articles.
IPC: B65G65/42
Filed: 1967-06-13
Abstract: 1,179,963. Delivering cigarettes from a hopper. MOLINS MACHINE CO. Ltd. 13 June, 1967 [24 June, 1966], No. 27265/67. Heading B8S. Cigarettes in hopper 1 are stirred by pivotally reciprocating agitator b and fall down shoots c to be deposited in grooves d. They are discharged therefrom by pushers on respective endless chains f singly and are conveyed along respective tube by air introduced at at h. Each cigarette is received between horizontal plates m 1 , n 2  disposed within hollow chamber l which is contained within hopper II. The cigarettes thus positioned between the horizontal plates m 1 , m 2  are discharged left or right by pivoting pusher p 1 , p 2 , the cigarettes passing between the plates into the hopper and being discharged therefrom down shoot k. Tube G is provided with light detectors A and B. When the number of cigarettes at the downstream end of tube G exceeds the predetermined number, detector A operates magnetic clutch i to stop the operation of chain F. Likewise, detector B operates when the number of such cigarettes is less than a predetermined quantity and then stops the operation of pusher p 1 , p 2  in hopper II. Hopper II is provided with light level detectors D and C which determine the maximum and minimum levels of the cigarettes therein.
Patent GB-861971-A (GB)
Title: Improvements in or relating to polyepoxide-thermoplastic polymer compositions
IPC: C08G65/22
Filed: 1957-08-29
Abstract: Substantially insoluble, infusible resin compositions are produced by subjecting to high-energy ionizing radiation a mixture of a polyepoxide and a thermoplastic polymer of the type which is normally degraded by ionizing radiation.  Suitable polyepoxides are epoxidized oils, e.g. epoxidized safflower seed, soyabean, or linseed oil. Bisphenol epihalohydrin type condensates may also be used. Thermoplastic polymers mentioned are polyvinyl chloride, polyvinylidene chloride and cellulose nitrate.  Types of radiation which may be employed are high-energy electrons, X-rays, or g -rays. In the example, compositions of polyvinyl chloride, stabilizer, lubricant and epoxidized soyabean oil were formed into sheets and irradiated with electrons.  Compared with similar sheets having dioctyl phthalate or epoxidized acetylated monoglyceride of lard oil in place of the epoxidized soya bean oil, the sheets showed higher melting-point and increased stiffness indicative of cross-linking. If desired, some flexibility may be maintained in spite of the cross-linking by adding plasticizers, e.g. for vinyl resins, dioctyl phthalate, tricresyl phosphate, or di-isooctyl adipate. Fillers, pigments and other inert materials may also be added. Different faces of an object may be successively irradiated to aid penetration of the radiation.
Patent GB-828783-A (GB)
Title: Improvements in or relating to circuit arrangements for operating electric lamps
Inventor: DUNTHORNE DONALD
IPC: H05B39/08
Filed: 1957-08-29
Abstract: 828,783. Dimming lamps. GENERAL ELECTRIC CO. Ltd. Aug. 13, 1958 [Aug. 29, 1957], No. 27295/57. Class 38 (4). In an electric circuit arrangement for varying the brightness of one or more electric lamps comprising reverse-parallel thyratrons in series with an A.C. supply, an electronic pulse-forming circuit is arranged to control the thyratrons by means of alternate positive and negative voltage pulses the timing of which may be adjusted with respect to the phase of the supply voltage. The capacitor 14 is charged and discharged in a cyclic manner by the variable resistors 15, 22 under the control of the valve 23 and the relay 24. The triangular voltage thus obtained is amplified by the valve 25 and fed to the non-linear resistor 26 which together with the capacitor 28 forms a phase-shift circuit. The value of the resistor 26 varies in accordance with the triangular wave voltage and hence varies the phase of a current supplied from the transformer secondary 13. A corresponding phase varying voltage is fed via the transformer T2 to the cathodecoupled multivibrator 34, 35, an output of which is differentiated. The sharp pulses so formed are amplified in the valve 43 and passed to the thyratron control grids, each being connected to its own winding 49 or 50 of the transformer T3. Additional switching means may be used to interchange lamps connected to the dimming circuit with other lamps on full or zero brightness so as to give a sequence of lamps of various colours. Specification 828,784 is referred to.
Patent GB-307518-A (GB)
Title: Improvements in vaporisers for internal combustion engines
IPC: F02B19/12
Filed: 1927-10-14
Abstract: 307,518. Watson, G. W., and Martineau, R. N., Oct, 14, 1927. Vaporizers, external. - Mixture from a jacketed conduit t, on its way to a conduit u communicating with the intake manifold v, passes through a vaporizer comprising annular chambers w, x formed by a detachable member j mounted in an extension g of the detachable cylinder head a and surrounding the conical combustion chamber c. The outer surface of the combustion chamber c and the inner surface of the lower part k of the member j are provided with heat-conducting fins i, l, and fins may be provided also on the inner surface of the chamber c. The upper part m of the member j fits accurately the extension g and may be provided with packing rings. The member j is held in position against a seat n at the upper part of the combustion chamber by a sparking-plug o. To facilitate the entry of the vaporized mixture from the inlet valve e into the combustion chamber, this chamber is arranged eccentrically to the axis of the cylinder b and may be provided with a guide f. A second plug y, which may be arranged to spark simultaneously with the plug o, may be provided in the cylinder head at a point adjacent the top of the cylinder.
Patent GB-191192-A (GB)
Title: Improvements in and relating to apparatus for producing and supplying heated air
IPC: F24H3/04
Filed: 1921-10-14
Abstract: 191,192. Wake, J. F. Oct. 14, 1921. Furnace fire-places; ash-pits.-A furnace, which may be portable, for supplying heated air for softening tar macadam &c., comprises an outer casing 4 surrounding a fire-chamber 5 of refractory material and forming an air-space 9 through which air is delivered by a fan 46 to the fire-grate 10. The top of the fire-chamber is covered by refractory material 25, provided with a central hole 27 closed by a bell 32 and leading from a fuel hopper 29. A chimney 30 is formed integral with the hopper 29 and is provided with a damper 41. Heated air is led from the chimney 30 through a cock 44 and flexible pipe 43 to a nozzle 45. A conical ash-hopper 17 is formed below the grate 10, its outlet 18 being controlled by a bell 19 operated by the lever 20, which is held in position by the quadrant 24. A coal receptacle 53 is provided on the chassis 1.
Patent GB-274573-A (GB)
Abstract: 274,573. Potts, H. E., (Canada Carbide Co., Ltd.). April 24, 1926. Burners, applications of.-A burner used for introducing a gaseous hydrocarbon containing or consisting of an endothernic gas such as acetylene into a dissociation chamber comprises an easily removable tube 23, a concentric tube 24 to provide an enveloping stream of a cooling gas such as air, nitrogen or carbon dioxide and a cooling jacket 25, containing a stream of water, for example, surrounding the tube 24. The lower end of the tube 23 is preferably sharpened to a knife edge. When the endothernic gas is diluted to such an extent that the heat liberated is insufficient for complete dissociation, oxygen or air may be introduced with the hydrocarbon gases to make up the denciency by partial combustion.
Patent GB-1480979-A (GB)
Title: Caps for bottles
IPC: B65D41/18
Filed: 1975-06-30
Abstract: 1480979 Bottle caps SO BESALKOHOLNI NAPITKI I MINERALNI VODI 30 June 1975 [1 July 1974] 27587/75 Heading B8T A resilient plastics cap for closing bottles of aerated liquids comprises inner and outer annular skirts 3, 4 joined at their upper ends. The inner skirt has a step 2, inner and outer bevelled surfaces 5, 6 and is closed by a membrane 7 whose upper and lower surfaces 8, 9 are respectively co-planar with the radially inwardly projecting inner sealing edge 10 of an annular flange 11, and the bottom of the flange itself.
Patent GB-410119-A (GB)
Title: Improvements in and relating to frequency discriminating electric circuits
IPC: H03G5/06
Filed: 1932-10-04
Abstract: 410,119. Impedance networks. ELECTRIC & MUSICAL INDUSTRIES, Ltd., Blyth Road, Hayes, and OURA, H. L., St. Peters, Long Lane, Hillingdon, both in Middlesex. Oct. 4, 1932, No. 27589. [Class 40 (iii).] A network regulating tone comprises a transformer in the anode circuit of an amplifier, a condenser and variable resistances being shunted upon the whole or a part of its primary winding. Thus, part of the primary of the transformer 2, Fig. 1, may be shunted by a condenser 6, a tapped resistance 7, 10 being connected as shown. The condenser byepasses high-frequency components to an extent which depends on the setting of the wiper 8. Alternatively, the condenser 6 and resistance 7 may be across the whole of the primary coil as shown in Fig. 2, the resistance 10 being shunted across part of the coil. The tappings on the resistances are mechanically coupled. A rejector circuit 12, 13, may be inserted for eliminating an undesired frequency or for producing a cut-off effect at the upper end of the frequency range. The condenser 13 may be variable to produce a variable cut-off. In a further modification, Fig. 3, in which also the condenser 6 and part of resistance 7 are across the whole of the primary coil, the rejector circuit 12, 13 is shunted upon the resistance-condenser combination. Specification 381,540 is referred to.
Patent GB-1263545-A (GB)
Title: Composite acrylic films for coating
IPC: B32B27/00
Filed: 1969-05-30
Abstract: 1,263,545. Laminates; laminated films. TORAY INDUSTRIES Inc. 30 May, 1969 [31 May, 1968], No. 27630/69. Headings B5B and B5N.  A composite film consists of (a) an upper layer comprising a copolymer of (i) 50-90 mole per cent of methyl methacrylate and (ii) 10-50 mole per cent of at least one monomer of the formula where R 1  is hydrogen, methyl or ethyl, R 2  is an alkyl group having 1-18 carbon atoms and R 1  and R 2  are not both methyl, and (b) a lower layer comprising a copolymer of (i) 25-59 mole per cent of methyl methacrylate, (ii) 40-74 mole per cent of at least one monomer of Formula (I) and (iii) 1-10 -mole per cent of at least one vinyl monomer having a carboxyl group at an unsaturated bond carbon, or a metal salt there of, said copolymers having melt viscosities at 220 C. in a range of from 100 to 5000 poises, and at least the lower-layer being formed in a molten state on the upper layer. Many copolymers are specified for the upper and lower layers. The upper layer may also contain a pigment, filler or ultra-violet absorbent. The composite film may be laminated to a base sheet of metal, wood or plywood board or synthetic resin. The composite film may be prepared by extruding both layers through the same extrusion nozzle or by extruding the layers separately and then melt extruding them to form the composite film. The laminate may be made by pressing the composite film and base sheet together at specified temperature and pressure in either a press roller or a hot press.