baber/WOPTO huggingface dataset:
Patent GB-314180-A (GB)
Title: Improvements in cricket or like balls
IPC: A63B37/00
Filed: 1928-05-12
Abstract: 314,180. Hermetic Rubber Co., Ltd., (formerly Self-Sealing Rubber Co., Ltd.), and Colledge, G. F. May 12, 1928. Balls.-A cricket or the like ball has an inner core 1 of any suitable material, a wrapping 2 of non-resilient material such as fabric, leather, etc., a body part 3 of rubbered fabric and an outer cover 4 of rubber, the ball being pressed between moulds, which may be heated, both before and after the application of the outer rubber cover. The object of the non- resilient wrapping 2, which is not secured to the core, except by its being wrapped thereon, is to control the resilience of the ball.
Patent GB-1312272-A (GB)
Title: Method of separating isotopes and plant therefor
IPC: C01B4/00
Filed: 1970-03-24
Abstract: 1312272 Heavy water; hydrogen sulphide CANADIAN GENERAL ELECTRIC CO Ltd 24 March 1970 [8 April 1969] 14262/70 Heading C1A In a method of operating a two-stage isotope enrichment plant, e.g. for the separation of D 2 O from H 2 O using a H 2 O-H 2 S counterflow arrangement, feed liquid is fed into line 20 and thence to first stage towers 16, 16<SP>1</SP>, comprising cold and hot sections CT, HT, where it countercurrently contacts with H 2 S gas. Isotope enriched fluid in gaseous form is then passed from the tops of the hot sections of towers 16 to the hot bottom of second stage tower 14 and isotope fluid in liquid form is passed from the bottom of the cold sections of towers 16<SP>1</SP> to the cold top of second stage tower 14 whereupon further enrichment takes place. The first stage may comprise one tower 16 and one tower 16<SP>1</SP>.
Patent GB-848139-A (GB)
Title: Package for substances in liquid, paste or powder form and method of manufacturing same
IPC: B65D75/58
Filed: 1958-05-05
Abstract: 848,139. Packages; collapsible tubes. MORETTI, E. May 5, 1958 [May 4, 1957; Jan. 14, 1958], No. 14332/58. Classes 66, 94(1) and 94(2). A bag for liquids is formed by transversely welding a flexible tube, one weld being shaped to form a conduit 2, apertures being cut in opposite walls of the conduit one of which is used as a filling opening. The bag may be filled by a needle 2a, a tongue 12 being initially inserted as a guide. The needle may fit the conduit tightly. The apertures are closed by an eyelet 3, or a plug, Fig. 11 (not shown). A screw cap emptying nozzle 10 having a seal 11 may be fitted, or the weld may be shaped to facilitate emptying by cutting off a corner as at 7.
Patent GB-888268-A (GB)
Title: Thermoplastic polyesterurethanes
IPC: C08G18/66
Filed: 1958-05-06
Abstract: Hard, tough, thermoplastic, essentially crosslink free polyesterurethanes comprise the product of reacting one mol. equivalent of a hydroxyl polyester with 1,1 to 4 mol. equivalents of an aromatic diisocyanate and from 0,1 to 3 mol. equivalents of an aliphatic glycol, said molar amount of aromatic diisocyanate being substantially equivalent to the total molar sum of said polyester and said aliphatic glycol, the hydroxyl polyester having a molecular weight between 250 and 2,500 and being formed by reacting an aliphatic glycol containing more than 2 carbon atoms with a phthalic acid.  By "phthalic acid" is meant o-, m-, or p-benzene dicarboxylic acid or a hydrogenated acid or anhydride derived therefrom.  The glycol used in preparing the polyester need not be the same as the additional aliphatic glycol.  The preferred glycol is 2,2-dimethyl-1,3-propanediol. Others corresponding to the formula <FORM:0888268/IV (a)/1> where A is alkylene and B is hydrogen or alkyl, each alkyl or hydrogen atom containing from 1 to 5 carbon atoms are specified; m- and a p-phenylene, bibenzyl, tetrachlorophenylene, dianisidine, benzidine, naphthylene, tolylene and bitolyene diisocyanates and their dimers are specified.  In a typical Example 1 mol. of hydroxyl poly(neopentylene isophthalate), of M.W. 800 is reacted, with 0,7 mols. of neopentyl glycol and 1,7 mols. of m-phenylene diisocyanate at 100 DEG C.  The melt is poured into a container and heated at 140 DEG C. to give a flexible, mouldable product, soluble in methyl ethyl ketone.  The solution can be used in forming coatings or in bonding steel, polyvinyl chloride or cotton fabric to steel.  Other solvents are aniline, nitrobenzene, acetone, ethyl acetate, isopropyl acetate, cyclohexanone, chloroform, tetrahydrofuran, dioxane and dimethyl formamide.  Lacquers are prepared (Examples 7 and 8) from the polyesterurethane of (1) in a mixture of glycol monomethyl ether acetate, ethyl acetate and toluene, giving a clear lacquer, which in (8) is pigmented with titanium dioxide, or cadmium yellow, red or orange.
Patent GB-747735-A (GB)
Title: Method for providing ferrous articles with a lead coating
IPC: C23C18/31
Filed: 1953-05-22
Abstract: A non-electrolytic method of forming a lead coating on a ferrous article comprises treating the article with an aqueous solution of a lead salt of an aliphatic monobasic hydroxy acid, such solution having a pH less than 7 and a lead ion concentration of 50-300 grams per litre.  Lead slats of glycollic, lactic, gluconic, glyceric and erythronic acids may be used. Temperatures of 70 DEG F. to boiling point, preferably 170 DEG F.-190 DEG F., may be used.  Addition agents such as dextrose, meltose, sucrose, lactose, dextrin, starches, casein, bone glue, albumin, gelatin, zein, tannic acid, pyrogellic acid, salicylic acid, gellic acid, aldehydes, furfurals, phenols, cresols, aloin, goulac, licorice, resorcinols, naphthols, gums and amines may be employed.  The coating solution may be applied by immersion, brushing, flow-coating or spraying.  The lead coating may be chromated, oxalated, sulphated, phosphated, painted or oiled. Ferrous salts, e.g. ferrous lactate, formed during the reaction may be removed by coating the bath and decanting or filtering.  The precipitate is dissolved in hot water, treated with excess of sulphuric acid, filtered to remove lead sulphate, treated with excess of barium or calcium hydroxide and the precipitate filtered, washed and dried. The filtrate is treated with sulphuric acid to precipitate calcium sulphate; this is filtered off and the filtrate treated with lead oxide to re-form lead lactate.  An additional coating of lead may be produced by passing electric current through the bath.
Patent GB-947059-A (GB)
Title: Improvements in containers for cold fluids and methods of containing such fluids
IPC: F17C3/02
Filed: 1960-04-25
Abstract: 947,059. Carrying liquefied gases. W. J. GEBIEN. April 25, 1960 [April 30, 1959], No. 14432/60. Heading B7A. [Also in Division F4] A liquid methane storage receptacle 88 operating at substantially atmospheric pressure and constructed of balsa wood 92 lined with redwood 90 is buoyantly supported within a steel tank 86 charged with liquid, e.g. crankcase oil, crude petroleum, palm oil and the like from a reservoir and standpipe unit 96. The oil serves to seep into cracks developing in the receptacle walls and congeal therein, /thus forming a seal against the escape of liquefied gas. In a modification the ship's hull may serve as the oil storage tank and the gas storage receptacle 88a, Fig. 9 (not shown), may be rigidly supported by positioners 106, 108, 110 and 112.
Patent GB-244139-A (GB)
Title: Improvements in or relating to wireless distant control apparatus
IPC: G08C19/12
Filed: 1924-06-14
Abstract: 244,139. Fiamma, E. June 14, 1924. Selective distant control systems.-In a wireless distant control system adapted to send a limited number of signals, a number of blades C<1>, C<2>, C', corresponding with the number of signals to be sent, are kept in vibration by electromagnets D<1>, D<2>, D<3> and a battery B on the principle of the common electric bell. Each blade is tuned to vibrate at a particular frequency of its own. Correspondingly tuned blades C', C<2>, C<3> are placed close to the magnets D<1>, D<2>, D' so as to vibrate and close a circuit S, S<1> intermittently with their own special frequency. Keys T<1>, T<2>, T<3> are provided so that an operator can bring any of the blades C<1>, C<2>, C' into connection with the circuit S, S<1> which is connected with a CW radio transmitting apparatus and aerial. The interrupted wave trains thus emitted are received by an ordinary detector and amplifier, indicated diagrammatically at R, Fig. 1, and connected in series with vibrating blade devices E<1>, E<2>, E<3> tuned to synchronize with the corresponding transmitting blades. The blades E<1>, E<2>, E<3> operate the signalling devices through relays S<1>. S<2>, S<3>. The transmitting station may be equipped with rotating switches I<1>, I<2>, P, Fig. 3, in place of the tuned blades of Fig. 2, or rotary spark-gaps O<1>, O<2>, O<3>, Fig. 4, running at different fixed speeds may be used. Specifications 21565/05, 21164/06, 23319/07, 18624/09, and 159,008, [Class 82 (i), Metals, Extracting &c.], are referred to.
Patent GB-867635-A (GB)
Title: Improvements in "flash lamp"
IPC: F21K5/08
Filed: 1959-04-28
Abstract: 867,635. Photoflash lamps. GENERAL ELECTRIC CO. April 28, 1959 [June 3, 1958], No. 14482/59. Class 9(2). A photoflash lamp comprising a cylindrical glass bulb 1 containing a combustible filling has recessed ends to house electric contacts 6, 7 and so protect the ignition means from stray electrostatic charges. To make the bulb, the ends of a piece of glass tubing may be heated before pressing-in the cup-shaped contacts. Contact 7 may be secured to an electrode 4, while contact 6 has a central opening 12, through which priming 5 is applied to the electrode 4. The bulb is then filled with shredded foil or wire, before the creation of an oxygen atmosphere in the bulb. The electrode 3 attached to a sealing disc is then inserted in the contact 6 and soldered in position. The combustible filling may be aluminium, magnesium or zirconium and the primer is a porous mixture of a metallic powder such as zirconium, or zirconium mixed with magnesium, and an oxidizing agent such as potassium perchlorate, bonded by nitrocellulose. In an example 90% by weight zirconium and 10% potassium perchlorate is suspended in a solution of nitrocellulose in amylacetate.
Patent GB-734060-A (GB)
Title: Improvements in or relating to negative feedback transistor amplifier interstage coupling circuits
IPC: H03F1/34
Filed: 1953-05-22
Abstract: 734,060. Transistor amplifying circuits. MOULON, J. M. May 22, 1953 [March 10, 1953], No. 14521/53. Class 40 (6). In a two-stage negative-feedback amplifier having a transformer coupling between the stages and fed in series from a common power source, the coupling between the stages is so arranged as to reduce the phase-shifts occurring in the coupling circuit at frequencies below the pass-band of the amplifier and thus increase the stability thereof. In the circuit shown in Fig. 3, which is stated to show a known arrangement, the primary winding of the interstage transformer 13 is connected between the collector and base electrodes of the first transistor 11 in series with a condenser 53. The directcurrent path for the power supply is provided by a connection from the junction of the primary winding and the condenser 53 to a variable tapping point on a potentiometer 14 connected in series with the secondary winding of the transformer 13 between the emitter and base electrodes of the second transistor 12. To provide a low-impedance path for signal currents the potentiometer 14 is shunted by a condenser 15. The condensers shown in the circuit have large values (e.g. 25 microfarads) so as to reduce phase-shifts at low frequencies, below the pass band of the amplifier which in the example shown extends from 300 to 3000 c/s. Negative feedback is provided by a connection made from the primary winding of the output transformer 18 to the input terminal 16 through components 24, 25. (In the circuit shown the feedback connection is not completed and is terminated instead in an impedance z equal to the input impedance of the amplifier.) Fig. 4 shows the arrangement according to the invention wherein the condenser 53 is not connected directly in series with the primary winding of the transformer 13 but is connected instead to the secondary winding as shown. It is stated that by this arrangement the phase-shifts occurring at low frequencies are reduced and the stability of the amplifier is improved. The transformer 13 shown in Figs. 3 and 4 effects a phase inversion; in a modification illustrated in Fig. 6 (not shown), employing a non-phaseshifting transformer, the condenser 53 is connected to the end of the potentiometer 14 connected to the base electrode of the transistor 12 while in order that the feedback may be negative, the feedback connection is taken from a suitable point on the secondary winding of the output transformer 18.
Patent GB-1506206-A (GB)
Title: Liquid preparations of reactive dyestuffs
IPC: D06P3/82
Filed: 1975-04-09
Abstract: 1506206 Reactive dye solutions HOECHST AG 9 April 1975 [9 April 1974 (3) 20 Nov 1974] 14521/75 Addition to 1506207 Heading DIB Aqueous dyeing preparations contain 5- 35% by weight of a fibre-reactive dyestuff of formula (I), (II) or (III) and one or more substances which have a buffering effect on the preparation and which do not react chemically with a #-sulphatoethyl - sulphonyl or vinylsulphonyl group, and have a pH of 3-7, preferably 5.5-6.8. Preferred buffer substances are sodium or potassium acetate or oxalate or phosphoric acid salts or sodium borate in amount 1-5%; particularly sodium dihydrogen phosphate, disodium hydrogen phosphate and sodium borate. The preparations are used for dyeing or printing fibrous materials made of wool, silk, synthetic polyamide or natural or regenerated cellulose.
Patent GB-495068-A (GB)
Title: Improvements in or relating to rotary power-transmission means
IPC: F16D7/04
Filed: 1937-05-26
Abstract: 495,068. Rectilinear-motion bearings. HOY & CO., Ltd., A., and HOY, A. Y. May 26, 1937, No. 14663. [Class 12 (i)] [Also in Group XXIV] An axially slidable clawmember 16 of an overload slipping clutch 14, 16, is mounted on a rolling key connection, comprising balls or rollers 26, in complementary grooves 44, 42 in the claw-member 16 and in a shaft 12 which supports and drives it, and the grooves are provided with yielding means, such as a light spring or a synthetic rubber cylinder or ball 58, which is compressed by the rolling movement of the balls or rollers 26 as the claw-member moves axially in the disengaging direction. Such yielding means ensures that the balls or rollers 26 will normally be held away from the end of the groove 42, so that disengaging movement of the clawmember 16 always results in rolling of the balls or rollers 26 instead of sliding thereof. The grooves 42, 44 are of V-section, e.g. of rightangle section, to result in point-contact for balls and line-contact for rollers; giving rolling without rubbing friction. There is an appreciable clearance 46 between the slidable clawmember 16 and its shaft 12, to allow the clawmember to centre itself in the radial direction. Adjacent rollers 26 of each row are oppositely inclined to each other, to transmit torque in either direction. In the form shown in Fig. 5, there are two slidable claw-members 72, 74, connected to a hollow casing 78 by rows of balls 50 in complementary V-section grooves in the casing and claw-members. A rubber cylinder 86 or light spring opposes the inward rolling movement of the balls 50. Spacing pieces may be interposed between adjacent balls to reduce the number required in each row.
Patent GB-1037082-A (GB)
Title: A gas producer or like reactor for operation at elevated pressure and high temperatures
IPC: C10J3/78
Filed: 1963-04-11
Abstract: A gas producer for operation at high pressure has a water jacket, the inner shell of which has helical fins on the face inside the jacket to strengthen the shell.  The fins are securely attached, e.g. by welding, to the shell, and extend to within 1 to 3 mm. of the outer shell, which is capable of withstanding the operating pressure thus providing a plurality of helical chambers in the jacket.  The chambers lead to a steam chamber at the top which is connected by a pipe to a main pipe which conducts the gasifying agent to a point below a rotary grate at the bottom of the producer.ALSO:A reactor intended for operation at high temperatures and pressures comprises an outer pressure-resistant shell (1, see Figure, not illustrated) and an inner shell (2) which defines a reaction chamber.  The space between the shells is a water jacket and steam-raising chamber, and the outer face of the inner shell has helical fins (7) which define compartments in the water jacket.  A pipe connection (4) enables steam to be led from the jacket to a main pipe (5) by which steam is delivered to the bottom of the reaction chamber.
Patent GB-1508553-A (GB)
Title: Tunable resonant cavity devices
IPC: H01J23/20
Filed: 1976-04-09
Abstract: 1508553 Magnetrons; tuning cavity resonators ENGLISH ELECTRIC VALVE CO Ltd 10 Jan 1977 [9 April 1976] 14704/76 Headings H1D and H1W In a resonant cavity device tuned by a plunger 8 having sealing bellows 7, the volume 9 which is in part defined by the bellows is isolated from the remainder of the cavity device by an isolating choke 10, to prevent disturbance of the tuning by spurious resonances associated with the bellows. As described, in a magnetron tuning arrangement, the position of the plunger is varied with respect to the central conductor 4 of a coaxial line coupled to a pair A2, B2 of the magnetron cavities. In a modified arrangement (Fig. 2, not shown) the choke 10 is integral with the fixed wall 6, the plunger 8 moving through a central aperture in the choke.
Patent GB-728187-A (GB)
Title: Improved tenebrescent material and method of making the same
IPC: G03C1/725
Filed: 1953-05-27
Abstract: 728,187. Tenebrescent materials. PHILCO CORPORATION. May 27, 1953 [May 28, 1952], No. 14764/53. Class 39 (1). A tenebrescent material comprises natural or synthetic sodalite Na 3 Al 6 Si 6 O 24 .2NaCl sensitized by heating to a temperature slightly below its melting point in a reducing atmosphere and for a prolonged period and rapidly cooling to room temperature. Synthetic sodalite is prepared by heating for more than five hours at 1060 C. a mixture of NaCl, Al 2 O 3 , NaOH and SiO 2  in stoichiometric proportions. Granular crystals are formed after heating for 24-72 hours. A flux such as sodium carbonate may be added to the mixture and impurities of S, Ca, Mg, Fe, Pb, Ba, P and As in specified amounts are permissible. The synthetic sodalite or the natural mineral is sensitized by heating to 1050 C. for one hour in a reducing environment, e.g. in hydrogen or on a carbon block in zircon, and rapidly quenched to give synthetic hackmanite, a substance which darkens to magenta upon exposure to ultraviolet light (2537 ) and bleaches to a colourless substance with visible light or heat. Additions of 1 per cent cadmium oxide CdO, or 2.5 per cent yttrium oxide Y 2 O 3  and 1.7 per cent CaCo 3  at the activating step gives increased darkening rate with ultra-violet light. Copper, titanium, aluminium, nickel, molybdenum and tin, however, are stated to have a deleterious effect. Other alkali halides may be substituted for the sodium chloride in the mixture.
Patent GB-705298-A (GB)
Title: Improvements in or relating to a method and machine for producing cylinder coatings for applications to graphical industries in paper making, textile industry, mechanography and the like
IPC: B29C48/06
Filed: 1951-06-21
Abstract: 705,298. Coating cylinders by extrusion. LIEVREMONT, H. G. June 21, 1951 [June 22, 1950], No. 14811/51. Class 87 (2) In .a process for the production of cylinder coatings for graphical industries a trued metal cylindrical core provided on its surface with protrusions or recesses is held between two centres connected with each other and moving in line with each other on a table or bench, the metal core being thus caused to go through a box containing plastic coating material such as a polymerization product of vinyl chloride'which is subjected to a pressure ensuring its extrusion through an annular aperture round the core, the driving of which, with the two centres, is caused by the coating material extruded from the box and adhering to the core. The protrusions may be studs or screw threads, about onetenth of a millimetre in height. The cylinder 9 to be coated is mounted between centres 2, 3 which are connected by means (not shown) that can be adjusted to alter the distance between them. To facilitate the adherence of the plastic material a preliminary coating of collodion is applied to the cylinder from a distributer (not shown). Cellulose acetate or aceto-butyrate may also be used. One end of the cylinder is placed in the chamber 10, which has, in one wall, a hole corresponding in diameter to that of the cylinder and in the opposite wall a slightly larger hole to give the annular aperture 8b. The plastic material is placed in the hopper 6 of a machine 4 for forcing the material into the chamber 10, the machine being driven by a motor 5 Heat is applied to the end 11 of the chamber and the extrusion end is cooled at 12. The material is extruded through the aperture 8b and takes the cylinder 9, to which it adheres. with it. For larger cylinders a drive, in synchronism with the drive from the motor 5, may be applied to the movement of the centres 2, 3. The driving, heating and cooling means are controlled from a board 14.
Patent GB-1392325-A (GB)
Title: Measuring apparatus
IPC: G01B11/06
Filed: 1972-03-30
Abstract: 1392325 Digital measurement of dimensions SIEMENS AG 30 March 1972 [17 May 1971] 14969/72 Heading G1A In measuring the thickness or width of a workpiece by measuring the distance of at least one surface of the work-piece from a reference line, a laser beam is deflected in steps relative to the line by an acoustic-optical deflector to scan over the workpiece and a photo-electric detector receiving reflected light from the workpiece generates a time impulse to read the current deflection angle from which the spacing is digitally calculated. In Fig. 1 the thickness of a workpiece 32 is measured by two laser beams deflected by acousticoptical deflectors 3, 19 away from reference lines 8, 17 on to opposed surfaces of the workpiece. The detectors 7,15 having a narrow field of view defined by apertures 4, 10 and 21, 14, give a pulse when the respective laser beam steps into the small surface area which the photo-detectors are viewing. From the angles alpha and beta, distances 11 and 16 can be calculated which, when subtracted from 18, gives the thickness of the workpiece. In the arrangement of Fig.2 for measuring the width of a workpiece 30 two laser beams from a common laser 23 are directed via prisms 24, 25 to acoustic-optical deflectors 26, 27 which cause the laser beams to scan over respective edges of the workpiece. Photo-detectors 31, 32 give out a timing signal when the respective laser beam leaves or, alternatively, sweeps on to the workpiece. From the time interval between the two time impulses and the known distance b o , width B of the workpiece can be digitally calculated.