baber/WOPTO huggingface dataset:
Patent GB-882093-A (GB)
Title: Synthetic polymer compositions
Inventor: SEAR DEREK WILLIAM
IPC: C08L9/00
Filed: 1957-09-21
Abstract: A synthetic polymer composition comprises an oil extended synthetic elastomeric homopolymer of a conjugated diolefine having an intrinsic viscosity greater than three and a minor proportion, based on the homo-polymer of a polyethylene of density at least 0,94.  The elastomeric polymer may be extended with, e.g. 20 to 130% of, an oil, e.g. a hydrocarbon oil containing aromatic, paraffinic and naphthenic components, and the polyethylene is preferably made by the low pressure process, and has a density from 0,95 to 0,96.  The homo-polymer may be poly-butadiene.  The composition may also comprise carbon black, zinc oxide, mineral oil, antioxidants, stearic acid, sulphur and curing agents and may be cured.
Patent GB-1521711-A (GB)
Title: Method and apparatus for filling bottles with fluid under pressure
IPC: F17C5/00
Filed: 1975-07-16
Abstract: 1521711 Metering fluent material SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 16 July 1975 [18 July 1974] 29822/75 Heading B8N [Also in Divisions GI and F4] A method of filling bottles with fluid under pressure, e.g. with liquefied gas, to produce a predetermined net weight of fluid in the bottle comprises the steps of reading the weight the bottle would have if entirely empty, measuring the initial weight of the bottle plus any fluid therein, deriving the weight of fluid to be added, measuring the density of the fluid and hence deriving the volume to be added, and adding the required volume. Bottles are weighed at 6, and at 12 data regarding the tare weight of the bottle and the date when the bottle is next to be tested are read from the bottle. A computer 10 calculates the weight and volume of fluid to be added, the density of the fluid being determined at 20. The bottle is filled at a filling station on a turntable 10, the filling station including a piston 10 and cylinder 40. The position of the piston may be detected by series Ca, Cr and Cf of pneumatic sensors, and computer 10 controls the position of valve 46, through which fluid is supplied to one or other side of the piston, and the position of valve 30, which directs fluid discharged from cylinder 38 either to the bottle 26 or to a reservoir, so that the correct volume of fluid is introduced into the bottle.
Patent GB-428121-A (GB)
Title: Improvements in devices for ascertaining the position of a liquid level in containers or the like
IPC: G01F23/292
Filed: 1934-10-18
Abstract: 428,121. Optical inspection-apparatus. AKTIESELSKABET DE DANSKE SPRITFABRIKKER, 29, Havnegade, Copenhagen. Oct. 18, 1934, No. 29866. Convention date, Oct. 20, 1933. [Class 97 (i)] To observe the level of liquid in a container 1, a scale 4<a> is provided at one end, and at the other end a telescope 2 with rotatable reflector 3 or a prism. The scale may alternatively be provided in an inclined position 4b and is illuminated by a lamp 5. In an alternative, Fig. 2, (not shown), the telescope is in such a position as to be used by an observer below, and in Fig. 3, (not shown), the mirror 3 is used to reflect the light from the lamp on to the scale, while the telescope is rotatable. In Fig. 4, (not,shown), the telescope is rotatable and the mirror is omitted.
Patent GB-875157-A (GB)
Title: Separation of solids from titanium tetrachloride gases
Inventor: CALLOW ALAN EDWARD
IPC: C22B1/08
Filed: 1957-09-23
Abstract: <PICT:0875157/III/1> In the chlorination of iron-bearing titaniferous materials in the presence of a carbonaceous reducing agent, the major portion of the normally solid constituents of the issuing gases is removed by condensation at a temperature above the dew point of the normally liquid metal chloride constituents and separating, for example by settling or cyclone separation, and the remaining portion of the solids, mainly iron chloride, is removed from the gases, before condensing the liquid constituents, by filtering through a fibrous glass fabric, the fibres being not more than 25 m  in diameter, and the fabric being such that the pressure drop across the fabric when clean never falls below 1 inch water gauge during the passage of not more than 100 cu. ft. of air per sq. ft. of surface per minute.  The fabric may be a woven, knitted, plaited or matted cloth preferably not more than 1 cm. thick, especially less than 0.3 cm.  For woven cloth, there are preferably at least 10,000 fibres/inch, especially at least 25,000 fibres/inch.  The fabric may be in the form of sheets or socks. The velocity of the gases to be filtered is preferably not more than 10 feet/minute, and the pressure drop across the fabric is preferably not more than 6 inch water gauge.  In the Figure, the titanium tetrachloride gases, containing suspended iron chloride, enter chamber 1 via conduit 2, any coarse particles being deposited in 3.  The remaining gases pass upwards through the glass filter socks 7, which are attached to plate 4 and to the device 9, by means of which the socks may be shaken continuously or intermittently to dislodge the collected iron chloride, which then drops into the base 3.  The purified gases leave via conduit 8.  Specifications 762,583, 770,908, 783,534, 806,052, 841,823 and 875,156 are referred to.
Patent GB-1189902-A (GB)
Title: A Method for Producing Gypsum Pellets
IPC: C04B22/14
Filed: 1967-06-28
Abstract: 1,189,902. Pelletizing gypsum. CENTRAL GLASS CO. Ltd. 28 June, 1967 [15 Nov., 1966], No. 29880/67. Heading C1A. Gypsum pellets are made by breaking (e.g. grinding, crushing or pulverizing) crystals of wet process calcium sulphate hemihydrate in order to expose fresh active faces thereon, and thereafter pelletizing the broken crystals while adding water to them. The water content of the hemihydrate during pelletization may be maintained at 19-30% by weight, calculated on the weight of dry hemihydrate, by adjusting the initial water content or by subsequent addition of water to the pelletizing apparatus. Broken pellets of gypsum, i.e. dihydrate or partially hydrated hemihydrate may be added during pelletization to provide seed crystals. These pellets may be recycled from the pelletization apparatus. Various substances may be added to the hemihydrate during hydration and pelletization, e.g. acids, alkalis such as milk of lime, potassium chloride, Glauber's salt, sodium carbonate, sodium phosphate, glue or lignin sodium sulphonate. Rotary cylindrical, conical or dish pelletizers may be used.
Patent GB-1496048-A (GB)
Title: Welding backing tape
IPC: C09J7/28
Filed: 1975-07-16
Abstract: 1496048 Welding by fusion MINNESOTA MINING & MFG CO 16 July 1975 [17 July 1974] 29905/75 Heading B3R In a backing tape for one-sided arc welding and comprising a flexible heat-resistant backing 11 coated with a pressure-sensitive adhesive layer 12, and a flexible refractory strip 14 adhered to the central portion of the layer 12 and formed of inorganic refractory particles bonded by flexible binder, inclusion of said refractory particles in the weld joint during workpiece pre-heating is minimized by the provision on the exposed surface of the strip 14 of a tacky layer 16 of an adhesive curable when heated to at least 150 C. Preferably, a layer 17 of inorganic particles, e.g. of glass cullet or metal oxide spheres and 0À25-1À6 mm. in size, is provided on the exposed surface of the adhesive layer 16 to protect the latter, facilitate tape rolling and unrolling, form a smooth glaze during welding, and space the tape organic materials from the weld to reduce carbon absorption in the weld metal. The backing 11 may be of metal, e.g. aluminium, foil or glass cloth. The adhesive layer 12 may be a mixture of styrene-butadiene rubber and iso-octylacrylate-acrylic acid copolymer, and the exposed parts thereof may be protected by removable strips 13 of treated crepe paper. The strip 14 refractory particles, usually 50- 4000 microns diameter, may be of glass cullet, and its binder (up to 10% volume of strip) may comprise a mixture of rubber latex, aqueous solutions of zinc dibutyldithiocarbamate and methylene bis, and ammonium nitrate (a carbon scavenger), sodium sulphonate, casein and NH 4 OH. The heat curable adhesive of the layer 16 may comprise a blend of nitrile rubber and a thermosetting resin which includes a liquid epoxy resin and may additionally include a reactive phenol or resorcinol formaldehyde resin. An example layer 16 may be formed by mixing butadiene-acrylonitrile copolymer, epichlorohydrin and bisphenol condensation product, brominated epoxy resin, fumaric acid curing agent and methyl ethyl ketone, and applying the mix to both sides of a non-woven web of rayon fibres and nitrile rubber binder.
Patent GB-1121272-A (GB)
Title: Pressure sensitive adhesive tape
IPC: C09J7/50
Filed: 1965-07-14
Abstract: Primer coating composition comprises a latex of a copolymer of chloroprene and acrylonitrile the weight ratio of chloroprene to acrylonitrile being from 75:25 to 85:15, and a natural rubber latex containing an emulsified tackifying resin, the amount of tackifying resin being 15 to 4% by weight, and of the copolymer 22 to 62% of the total solids weight.  The tackifying resin emulsion is anionic or non-ionic and may be emulsions containing petroleum hydrocarbons, terpene hydrocarbons or wood rosin derivatives.ALSO:A pressure sensitive adhesive tape for protecting metal surfaces comprises  (a) a hydrophobic film backing which is transparent and is essentially opaque to the U.V. radiation level encountered at the earth's surface.  (b) a primer composed of the dried product of a water-based latex of a copolymer of chloroprene and acrylonitrile the weight ratio of chloroprene to acrylonitrile being from 75:25 to 85:15, and a natural rubber latex containing an emulsified tackifying resin, the amount of tackifying resin being 15 to 4% by weight, and of the copolymer 22% to 62% of the total solids weight.  (c) a low tack, rubber based pressure sensitive adhesive bonded to the primer coating.  The film backing may be polyvinyl chloride, cellulose acetate, copolymers of ethylene and acrylates, polystyrene, polyester, polypropylene polyethylene, or copolymer of ethylene and propylene.  A method of preparing a chloroprene and acrylonitrile copolymer is described.  The tackifying resin emulsion is anionic or non-ionic and may be emulsions containing petroleum hydrocarbons, terpene hydrocarbons or wood rosin derivatives. The primer may be applied by spray gun, roll coating, knife coating, reverse roll coating, transfer coating or by air knife, and the primer is then dried in warm air.  The pressure sensitive adhesive may contain a water-dispersed tackifying resin.
Patent GB-331151-A (GB)
Title: Improvements relating to delivery mechanism for printing presses
IPC: B65H29/08
Filed: 1929-10-02
Abstract: 331,151. Maschinenfabrik Augsburg- N³rnberg Akt.-Ges. Nov. 22, 1928, [Convention date]. Delivery apparatus.-In delivery apparatus for cylinder printing-machines in which oscillating grippers 3 take the sheet from the impression cylinder 4 and deposit it on a flexible support 5 unrolled beneath the sheet from a spring-roller 7, the grippers 3 are moved beyond the normal upper limiting position shown in full line, to the position 3<1> in order to prevent the tail end b of the sheet dropping on to the type-bed 6. The grippers are returned to the normal position when the sheet has left the cylinder, and the support 5 then moves into position to forward it to a further tape delivery. The gripper-arm is oscillated through levers 14, 15 from a cam 12 on the cylinder shaft and its movement is controlled by a spring 16.
Patent GB-906395-A (GB)
Title: 2,3-dimethoxy-5-methyl-6-substituted-benzoquinones and hydroquinones
IPC: C07C46/06
Filed: 1959-09-02
Abstract: The invention comprises compounds of the general formulae <FORM:0906395/IV (b)/1> <FORM:0906395/IV (b)/2> (wherein n is an integer from 2 to 4), the preparation of the compounds of the first general formula by condensing 2,3 - dimethoxy-5-methylhydroquinone with an alcohol of the general formula <FORM:0906395/IV (b)/3> in the presence of an acidic condensing agent, and the preparation of the compounds of the second general formula by treating the compounds of the first general formula with a mild oxidizing agent.  The compounds of the second general formula have Coenzyme Q activity. 2,3-Dimethoxy-5-methylhydroquinone is prepared by reduction of 2,3-dimethoxy-5-methylbenzoquinone.  3,7,11,15,19 - Pentamethyl-1,6-eicosadien-3-ol (n = 2 in the third general formula above) is prepared by reaction of phytyl bromide with ethyl sodioacetoacetate followed by acid hydrolysis giving 6,10,14,18 - tetramethyl - 5 - nonadecen-2-one, followed by reaction with sodium acetylide and acid hydrolysis to form 3,7,11,15,19 - pentamethyleicosa-6-en-1-yn-3-ol, and catalytic hydrogenation of this compound until one molecular proportion of hydrogen is absorbed. 3,7,11,15,19,23 - Hexamethyl-1,6,10-tetracosatrien-3-ol (n = 3 in the third general formula above) is prepared similarly, by replacing phytyl bromide by 1-bromo-3,7,11,15,19-pentamethyl-2,6-eicosodiene, obtained by the action of phosphorus tribromide on the compound in which n = 2 in the third general formula above.  3,7,11,15,19,23,27 - Heptamethyl - 1,6,10,14 - octacosatetraen-3-o (n = 4 in the third general formula above) is prepared by further repeating the foregoing steps.
Patent GB-833553-A (GB)
Title: Improvements in counting mechanism
Inventor: ABEL WALTER
IPC: G06M3/02
Filed: 1957-09-25
Abstract: 833,553. Counting-apparatus. MEASURE-METERS CO. Ltd. Sept. 24, 1958 [Sept. 25, 1957], No. 30047/57. Class 106 (1). [Also in Group XXXVII] The numeral wheels of a mechanical counter are arranged each to drive one of a plurality of coaxially arranged wheels each of which carries a contact brush movable over a plurality of stationary contacts, to close circuits in accordance with the number registered by the counter. As shown, each numeral wheel a of a counter drives via an intermediate gear b a wheel c, all the wheels c being mounted on a spindle C. Each wheel c is integral with a bush C<SP>1</SP> to which is fixed a member D carrying a spring contact roller d<SP>1</SP>. Each roller d<SP>1</SP> moves over a series of isolated stationary contacts d<SP>2</SP> which it connects sequentially to a common contact ring d<SP>7</SP>. Individual leads d<SP>3</SP> may be taken from the contacts d<SP>2</SP> to panels of contacts (not shown) and may be arranged to operate lamps indicating the count or to provide a signal on a predetermined count being attained.
Patent GB-1448308-A (GB)
Title: Electric switches
IPC: H01H15/16
Filed: 1974-07-08
Abstract: 1448308 Slide switches SIEMENS AG 8 July 1974 [10 July 1973] 30113/74 Heading H1N A switch has a saddle-shaped sliding contact assembly 2 displaceable in a housing 3 and a protuberance 10, connected to or integral with the housing 3, projects into the space between resilient side walls 6 of the assembly 2, such that the sliding assembly 2 can be brought from one switching position to another only by deflection of at least one of said resilient walls 6. As shown projection 10 is frusto-conical and integral with the base 4 of housing 3. A projection (8, Figs. 2 to 4, not shown) extends inwardly from each wall 6 so that protuberance 10 deflects the walls 6 as assembly 2 is actuated. The moving contacts 11 each comprise two L-shaped members of spring sheet metal with ends embedded in the synthetic plastics mass of assembly 2, and their free ends bear against the inner surfaces of housing walls 7 to co-operate with fixed contacts in the form of metal plates 12 embedded to be flush therewith and having extensions 13 adapted for insertion into bores in a printed-circuit board. A cover 1, with guide slot 21 for actuating button 20 of assembly 2, has openings 19 in resilient side walls for engagement over hook-like members 18 on housing 3 and retains the assembly 2 therein. The top part 22 of assembly 2 is so formed that it keeps the guide slot 21 covered and prevents entry of foreign matter. A ledge 23 provides an appreciable gap between the cover 1 and housing 3 which prevents entry by capillary attraction.
Patent GB-723204-A (GB)
Title: New therapeutically active quaternary ammonium compounds and processes for their preparation
Inventor: BARBER HARRY JAMES
Filed: 1950-12-08
Abstract: The invention relates to hexamethylene-1 : 6-bis (dimethylethyl ammonium) salts, other than the embonate, which may be prepared by reacting a compound of the type X-(CH2)6-X with a compound of the type Y in which, when X represents the acid residue of a reactive ester, e.g. a halogen atom, Y represents dimethylethylamine and when X represents a dimethylamino or methylethylamino radical, Y represents a reactive ethyl or methyl ester.  The salts so obtained can be converted to other salts such as the phosphate or tartrate by metathesis.  Water-soluble salts may also be obtained by the method described in Specification 723,203 by treating an aqueous solution containing the hexamethylene bis quaternary ammonium cation with a water-soluble salt of embonic acid thereby forming the hexamethylene bis quaternary ammonium embonate as a precipitate; the embonate is removed and treated in hot solution with an acid whose quaternary salt is desired and the required salt is thereby formed and embonic acid precipitated.  In examples, (1) hexamethylene-1 : 6-bis dimethylamine is reacted with ethyl bromide in ethanol yielding the bis quaternary ammonium dibromide; (2) embonic acid in aqueous caustic soda is reacted with the product of (1), the resulting embonate separated, dissolved in hot water and then reacted with tartaric acid forming the bis quaternary ammonium tartrate.  The chloride, iodide, citrate and neutral sulphate salts and, in the Provisional Specification, the p-toluene sulphonate salt, are also mentioned.  The salts have ganglionic blocking activity.
Patent GB-226540-A (GB)
Title: Improvements in or relating to casting hollow bodies
IPC: B22D13/10
Filed: 1924-12-16
Abstract: 226,540. Gelsenkirchener Bergwerks- Akt.-Ges. Dec. 17, 1923. [Convention date]. Centrifugal machines. -A centrifugal mould a is adapted for casting two pipes &c. at once by inserting a movable separating ring d. To ensure a satisfactory pour of the socket k, Fig. 2, adjacent the supply, the core c is provided with a concave inner surface and perforations e, to act as inlets. This core is held in place by a spring clip g provided with lugs h, Fig. 3, for withdrawing it.
Patent GB-536645-A (GB)
Title: Improved facsimile recorder
IPC: H04N1/16
Filed: 1939-11-17
Abstract: 536,645. Copying telegraphy. FORRESTER, H. J. C. (Radio Inventions, Inc.). Nov. 17, 1939, No. 30303. [Class 40 (iii)] Relates to facsimile recorders of the kind comprising a rotatable drum fitted with a helical electrode co-operating with a stationary linear electrode substantially parallel to the axis of the drum, the electric signals applied between the electrodes producing marks by electrolytic action on a prepared strip of paper drawn between the electrodes. According to the invention, the linear electrode is transversely flexible in the form of a fine wire 9, Fig. 1, or of a thin strip, stretched between end pins 10, 11 on a bar 8. Additional blade springs 43, Fig. 3, may be provided along the length of the bar 8 to give local spring support to the wire. These blade springs may be metallic or of insulating material and may have slight indentations for engaging the wire in a definite position. In a modification, Fig. 9, the wire 9 is stretched between end supports 59, 60 on the bar 8, and is tensioned by a turn-buckle 63. The wire may be heated to improve the electrolytic action by passing an electric current therethrough, for example from a battery 80. As shown in Figs. 1 and 2, the drum 6 is driven by a motor 26 synchronized with the transmitter in known manner. The motor 26 also drives the paper feed roller 15 through gearing 33, 36 and a countershaft 35. The paper comes from a reel 3 through a lip 4 and passes in succession under a roller 67, between the electrodes, between rollers 15, 16, and over shaft 17. The roller 15 is driven from the motor through a ratchet 30, which enables the roller to be turned forward independently of the motor by a knob 21 on its spindle 20. The roller 16 is carried by arm 18' on the shaft 17, which has outer arms 19 cooperating with a hand lever 22 to lift the roller 16 out of action. The bar 8 is mounted on insulating bushings 68, 38 and provided with an arm 39 urged by a spring 40 against an adjustable screw stop 42 which controls the contact pressure between the electrodes.
Patent GB-291121-A (GB)
Title: Improvements in or relating to television apparatus
IPC: H04N5/66
Filed: 1926-11-30
Abstract: 291,121. Television, Ltd., and Baird, J. L. Nov. 30, 1926. Television.-The screen upon which a picture is reproduced is provided with means for securing persistence of the image and for obliterating elements of the image before each new signal is received. Thus a screen 10, Fig. 1, having on its surface a fluorescent material such as calcium sulphide may be activated by a beam of light from a source 12 which traverses an exploring device such as a rotating disc 11 carrying a spiral of lenses. Immediately before the line element 16 of the picture is transversed by the activating pencil, it is traversed by a beam of different wave-length from a source 13 which has the effect of obliterating the previous fluorescence. The source 13 may be an arc with an ebonite filter-screen. In a modification (Fig. 2, not shown) the obliterating beam 13<a> does not explore the picture but floods it once per revolution through a large aperture in the disc 11, so that the whole of the image is obliterated simultaneously. In a further modification a system of lamps or shutters, controlled by the incident beam through relays, may be substituted for the fluorescent screen.
Patent GB-446099-A (GB)
Title: Improvements in a method of and apparatus for the manufacture of metal tubes and other tubular metal articles
IPC: B21C1/26
Filed: 1934-10-23
Abstract: 446,099. Reducing tubes. WELLMAN SEAVER ROLLING MILL CO., Ltd., and SMITH, S., Victoria Station House, Victoria Street, Westminster. Oct. 23, 1934, No. 30361. [Classes 83 (ii) and 83 (iv)] A hollow billet 15 is reduced to tubular form by first pushing it on a mandrel 3 through a series of ring dies 5 and then pushing it at a greater speed through another series of ring dies 5. The billet is stripped by a slotted plate 8 pulled by hydraulic power 10 while the mandrel is held by its reduced end in gripping jaws 7. The billet is then reheated in a furnace 13, removed therefrom by a pusher 17 and scale removed, e.g. by tilting up the closed end and tapping it and then it is transferred by a table 14 to a position in front of the mandrel 3<1> which pushes it through the next series of dies 5<1>. The first mandrel is returned from the stripper by a runway 16. The pushers are operated by racks and pinions 1 or 1<1>. Specification 300,288, [Class 83 (iv)], is referred to.
Patent GB-520403-A (GB)
Title: Improvements in electric switchgear of the enclosed type
IPC: H01H19/635
Filed: 1938-10-20
Abstract: 520,403. Electric switchgear. ENGLISH ELECTRIC CO., Ltd., and POOLEY, A. M. Oct. 20, 1938, No. 30419. [Class 38 (v)] A movable contact unit consisting of two end plates 4 connected by rods 6, 7 which carry the actual contacts and fuses (not shown) is guided in a preferably rectilinear path by means of a projection, such as the end.of the rod 7 engaging a groove 8 on the switch casing. The switch is operated by movement of a handle connected to a shaft 1 which is linked to another shaft 2 and to the plates 4 as shown, the arrangement ensuring that the contact unit moves always parallel to itself. Snap action mechanism may be interposed. When the switch is closed a pin 19 moves a lever 18 to latch the lid 21 of the casing. When the lid is opened another latch, Figs. 6, 7 (not shown), moves to engage the pin 19 and lock the switch " off."