baber/WOPTO huggingface dataset:
Patent GB-1294008-A (GB)
Title: Process for filling powders into containers
IPC: B65B1/04
Filed: 1970-09-16
Abstract: 1294008 Filling containers ELI LILLY &c. CO 16 Sept 1970 [16 Sept 1969] 44231/70 Headings B8C and B8T A process for filling powders such as pharmaceutical powders into containers such as vials, ampoules, syringes, etc, which have small openings, comprises suspending the powder in an inert, voltatile, liquid diluent, having a boiling point below 100‹ C., filling the suspension into the container and evaporating the inert liquid diluent, leaving the powder in the container. Typical powders are stated to be caphalothin, potassium penicillin G, phenobarbital sodium, and secobarbital sodium, typical diluents including allcanes, halogenated hydrocarbons, expoxides, alcohols, esters, and inorganic diluents such as sulphur dioxide. The liquid diluent preferably has a boiling point below 50‹ C. and desirably below 30‹ C. at which temperature the powder can be removed by a stream of air or, a slight vacuum. The temperature must be one at which the powder remains stable during withdrawal. Diluents boiling at higher temperatures, but below 100‹ C., may require special evaporation proceedings such as passing the filled containers through a heated chamber at atmospheric, or reduced, pressure. Alternatively, the filled containers may be placed in a closed evapotion vessel in which warm air is first introduced at a temperature below the boiling point of the diluent under a positive pressure, and then periodically the vessel. Conventional liquid filling equipment, with slight modification, can be used, and the powder can be removed from the container by dissolving in a solvent such as water.
Patent GB-1137249-A (GB)
Title: Improvements in or relating to bag-filling apparatus
Inventor: GILLARD GEORGE WILLIAM
IPC: B65B67/12
Filed: 1967-09-29
Abstract: 1,137,249. Bag holder. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 29 Sept., 1967, No. 44395/67. Heading B8C. Apparatus for accommodating bags during and after a filling operation comprises an open sided base member 2 having opposite end walls 6 and a removable partition member 4 locatable within the base member so as to divide the base member into a number of separate compartments. In the embodiment shown the partition member comprises an upper open rectangular frame 10 carrying a plurality of semi-spaced dividers 12 which taper towards their lower ends and are also connected to each other by longitudinal side plates 18. The dividers may be coated with a material which does not adhere to the substance being put into the bags. In use a pairs of bags is arranged in each compartment, their mouths being held open by stapling, gluing or otherwise securing together the upper ends of the bags in adjacent compartments, and the apparatus passed beneath a dispenser. When the bags are filled the partition member is lifted from the base to leave the bags stacked on the base member.
Patent GB-916590-A (GB)
Title: Apparatus and method for analysing or detecting gas
IPC: G01N30/46
Filed: 1960-12-30
Abstract: <PICT:0916590/III/1> Apparatus for analysing gases may comprise two chromatographic columns in series with an ionization tube 14 (see Group XL(a)). As shown, a sample of gas to be analysed is mixed with a carrier gas by means of a six-port valve 24 and passed into a partition column 30 comprising dibutylphthalate or silicon oil on granular fire brick or celite.  Gases such as oxygen, argon and nitrogen migrate rapidly through column 30 or pass into an adsorption column 32 of a type employing zeolite, while other heavier gases having higher boiling points, such as propane which traverse column 30 more slowly, are reverse flushed by rotating valve 26, 90 degrees from the position shown through column 30 or out of the vent connected to valve 28.  Final analysis of the gas is effected by use of a single ionization tube 14, or a plurality of such tubes connected in parallel.  Specification 822,694 is referred to.
Patent GB-1550874-A (GB)
Title: Process for producing fluorinated copolymer having ion-exchange groups
IPC: C08J5/22
Filed: 1976-10-28
Abstract: A fluorinated copolymer having 1 to 50 mole % of a component having functional group of carboxylic acid group or a group which can be converted to carboxylic acid group, is produced by copolymerizing a fluorinated ethylenic unsaturated monomer and a functional monomer having the functional group in the presence of a polymerization initiator source in 0 to 10 mole of an inert organic solvent per 1 mole of the functional monomer under the pressure of higher than 6 kg/cm2 whereby the copolymer having high molecular weight (TQ of higher than 150 DEG  C) and an ion exchange capacity of 0.5 to 4 meq/g dry polymer is produced.
Patent GB-1237823-A (GB)
Title: Improved valve assembly
IPC: B60T8/26
Filed: 1969-09-11
Abstract: 1,237,823. Proportioning valves. KELSEYHAYES CO. 11 Sept., 1969 [17 Sept., 1968], No. 45004/69. Headings F2F and F2V. A fluid flow valve comprises a valve housing 44, a valve member 94, spring means 134 loading the valve member 66 and deformable means 144 adapted to be operatively secured in position relative to the housing and thereafter deformed to its yield point and assume a relatively permanent configuration affecting the resilient force exerted by the spring means 134. Disposed within the housing 44 is a push-rod 66 which supports an annular diaphragm 72. The outer end of the diaphragm is clamped between a washer 80 and a plug 82. A valve member 94 is formed with a plurality of projections 96 which define recesses 100 through which fluid flows. When the valve seat 118 engages the surface 110, fluid communication is blocked. At low pressures fluid flow can take place through the valve. At a preselected pressure, the force acting on side 146 pushes the rod member 66 to the right, thus blocking flow to the outlet 56. Additional pressure increases acting on valve seat 118 forces the rod to left again. The preselected amount of compression of spring 134 determined by the permanent deformation of the casing at 144 provides the desired characteristics of the fluid flow.
Patent GB-1491515-A (GB)
Title: Screw-threaded fastener
IPC: F16B23/00
Filed: 1974-10-22
Abstract: 1491515 Screw heads YAMAMOTO BYORA CO Ltd 22 Oct 1974 [29 Oct 1973] 45743/74 Heading F2H [Also in Division B3]  A screw head 12 has a recess 11 with a plurality of ribs 14 and grooves 15. The outer portion of each groove lies on a circle 17 with centre O and the cross-section of each rib is an arc of a circle 16 whose centre lies on or within the periphery of the circle 17. Preferably the centre of the circle 16 lies outside the common chord of the two circles 16, 17. The ribs are tapered with respect to the axis of the recess, the semi-angle α being between 1 and 10 degrees. A screwdriver 18 has grooves 19 and lobes 20 for engaging with the screw-head recess and is tapered with an angle # smaller than α.
Patent GB-1532796-A (GB)
Title: Filtration
IPC: B01D37/04
Filed: 1975-11-04
Abstract: In the method, conductivity measurements are carried out in a defined sequence. A first measured value is stored as a first reference value and the difference between this and subsequently determined measured values is determined. When a difference exceeding a preset tolerance value is detected, a first changeover point is established in each case. In the further course of the method, similarly, a second changeover point is established in that this difference lies beneath a preset tolerance value. The apparatus is provided with a remotely controllable 3-way valve (19), which is installed between filter outlet (13) and tank feedline (17) and upstream of which is connected a measured value sensor (24). An additional 3-way valve (31) is connected to the three-way valve (19) via a line (26), which additional three-way valve is connected to a discharge line (34). <IMAGE>
Patent GB-1360419-A (GB)
Title: Removal of polymerisation inhibitors from ethylenically 'nsatu rated monomers
IPC: C08F6/08
Filed: 1971-10-01
Abstract: 1360419 Purification of ethylenically unsaturated monomers A A GELLON and V M RIETTI 1 Oct 1971 [14 Oct 1970] 45845/71 Heading C2C [Also in Division C5] Polymerization inhibitors, e.g. tertiary butyl catechol, hydroquinone and hydroquinone monoethylether, and other impurity that reacts with alkali metal hydroxide are removed from ethylenically unsaturated monomers, e.g. acrylonitrile and methylmethacrylate, by intimately contacting the latter with an alkali metal hydroxide solution of at least 4N and separating the alkaline phase from the monomer, the monomer phase having dissolved therein at least 0À02% by weight water and the alkaline phase having, throughout the process, a concentration of at least 4N. The monomer phase preferably has a water content between 0À02% by weight and the saturation value. If the process is carried out batchwise, the amount of alkali metal hydroxide solution may be less than 1% by weight of the monomer. Intimate contact may be achieved simply by vigorous stirring together of the monomer and alkali metal hydroxide solution. Alternatively the latter may be mixed with a minor proportion of the monomer to be purified and this mixture then mixed with the remainder of the monomer, or the hydroxide may be emulsified in an organic liquid and the emulsion then mixed with the monomer. A particulate adsorbent carrying the hydroxide solution may be used to promote intimate contact between the latter and the monomer.  The purification may also be carried out continuously by passing the monomer over the alkali metal hydroxide solution which is carried on a support, e.g. a bed of particulate or fibrous material held in a vessel. Solvents specified for the alkali metal hydroxide solution are H 2 O, CH 3 OH, C 2 H 5 OH and mixtures thereof.
Patent GB-1245082-A (GB)
Title: Improvements in or relating to carburettor float chambers
Inventor: BOWNESS DONALD JOHN
IPC: F02M5/08
Filed: 1967-08-11
Abstract: 1,245,082. Spray carburetters. D.J. BOWNESS. Aug.29, 1968 [Aug.11, 1967; Oct. 9, 1967], Nos.36942/67 and 46145/67. Heading F1B. The space above the fuel in a sealed float chamber is connected to a closed chamber adapted to absorb pressure variations caused by variations of fuel level or by evaporation. In Fig. 1 the upper part of the float chamber is connected through a fitting 24 and pipe 25 to an expansion device 27 having a space 28 sealed by a diaphragm 30 the reverse side of which is connected to atmosphere. A second connection 32 from the fitting 24 is connected to a pipe 33 which terminates below the fuel level in the fuel tank 22 and serves to siphon off excess fuel if float valve 14 sticks. Alternatively the device 27 may be omitted and the float chamber vented to the top of the fuel tank. In a modification the connection 33 to the fuel tank is omitted and an indicator rod operated by the diaphragm 29 indicates when flooding has occurred. The device 27 may be replaced by a flexible plastic bag or by a closed rigid-wall reservoir e.g. a vertical tube. In a boat, Fig. 2 (not shown), the fuel conduit (37) from the carburetter (9) to the engine may be heated by an exhaust jacket (38).
Patent GB-1403603-A (GB)
Title: Disposable diaper
IPC: A61F13/15
Filed: 1972-10-06
Abstract: 1403603 Disposable diaper JOHNSON & JOHNSON 6 Oct 1972 [7 Oct 1971] 46232/72 Heading A5R [Also in Division B5] Diapers comprises a non-woven fabric facing layer 16, one or two more wettable narrower batts 14 of loosely compacted cellulosic fibres having an integral paper-like densified compacted portion 18 of higher wettability and fluid retentivity than the bulk of the batt, a water impervious sheet 12 at least as extensive as the adjacent batt, and a non-woven fabric outer layer 13 co-terminous with layer 16, the marginal portions of a layer 16 being secured to the marginal portions of sheet 12 or layer 13, layers '13 and 16 being of density less than 0.15 gm/cc and comprising mixed fibres shorter and longer than  inch, and a second batt 14 if present being larger than the batt adjacent layer 16 (see Fig 4 not shown). Layer 16 may have an inwardly-folded edge portion (Fig 3 not shown) and sheet 12 may be co-terminous with batt 14 (Fig 12 not shown). The layers 13 and 16 may comprises 75-98 wt % wood pulp fibres or cotton linters and 2-25 wt % ¢-2¢ inch rayon fibres and be bonded with a selfcross-linking acrylic emulsion, layer 16 being additionally treated with a wetting agent to render it wettable layer 13 may be thinner and lighter than layer 16 and should be waterrepellant. The batt 14 may be of short wood pulp fibres or cotton linters and the portion 18 may be formed after moistening. The sheet 12 may be polyethylene, polyvinyl chloride or polyethylene terephthalate of thickness 0.00025- 0.003 inch and may be embossed and plasticised: it is preferably bonded to layer 13, batt 14 and the marginal portion of layer 16 by adhesive bead lines, although layer 13 may be heat-sealed thereto along lines or marginal portions. The laminated constructions are folded to form diapers, the folds being secured by adhesive spots. In Fig 8 (not shown) diaper material is manufactured by applying adhesive to both sides of sheet 12 and applying the layers 13, 14, 16 from rolls, the batt material being severed into individual batts at the point of application. The assembly is pressed between rollers and severed to form individual diapers. In Fig 9 (not shown) layers 13 and 16 are split from a sheet which has been formed by plying two fibre webs in which the fibres are laid shinglefashion so that the two fibre directions are at an angle. The splitting of the sheet forms two layers with rough surfaces. Batt material in lengths is fed onto one layer and the sheet 12 is extruded into a roller nip as the fibrous materials pass therethrough.
Patent GB-1012477-A (GB)
Title: Improvements in or relating to synthetic resin cements for incandescent lamps
IPC: C09J5/00
Filed: 1961-12-27
Abstract: A heat-resistant thermosetting cement comprises a resin component consisting of a mixture of a silicone resin and an aminoplast, and a metal soap as hardening agent, together with a heat-resistant filler and a solvent and/or diluent.  Ingredients specified are: (1) siloxane resins containing methyl, ethyl or phenyl radicals; (2) aminoplasts-condensates of urea or melamine with formaldehyde, acetaldehyde or furfural, with or without further reaction with butanol; (3) metal soaps-octoates, hexoates, stearates, oleates and naphthenates of Pb, Ba, Bi, Fe, Co, Ni, Cd and Zn; (4) fillers-titania, lithopone, powdered marble, silica and calc. spar; and (5) solvents-acetone, trichloroethylene, butanol, toluene and turpentine. The preferred weight ratio of siloxane to aminoplast is from 1 : 2 to 4 : 1, the hardener being used in amount of 0.5 to 3.0% by weight of the aminoplast, and the filler in amount of 3 to 15 parts (by weight) per part of resin.  The cements harden at 180 DEG to 300 DEG  C. within 100 seconds.  Examples are given in which the aminoplast is a melamine/formaldehyde resin.  Uses: for cementing caps to bulbs in incandescent lamp manufacture.
Patent GB-1466259-A (GB)
Title: Electric circuit breakers
IPC: H01H71/74
Filed: 1973-10-04
Abstract: 1466259 Automatic circuit-breakers DORMAN SMITH SWITCHGEAR Ltd 5 Sept 1974 [4 Oct 1973] 46292/73 Heading H1N In a circuit breaker having a spring loaded pivoted armature 13 which, when short circuit current flows in a conductor 50 passing through a magnetic circuit 15, pivots from a rest position to deflect a trip bar 10 via a pull rod 16 and thus trip the circuit breaker, the load applied by the loading spring 22 is adjusted without moving the armature from its rest position by means of an eccentric circular boss 27 rotatable manually by a knob 37 accessible from outside the circuit breaker. The eccentric boss 27 is carried in a recess in the knob 34, Fig. 4, and bears on a lug 28 of a lever 25 intermediate the boss and the loading spring 22. The boss itself is adjustable by sliding it relative to a bush 38 in the knob which projects through an aperture in the boss, relative movement between knob and boss being limited by grooves and ribs 39. The knob and boss are fixed together by a bolt 42.
Patent GB-1494087-A (GB)
Title: Magnetic recording and reproducing transducers and methods of manufacture thereof
IPC: G11B5/31
Filed: 1975-10-22
Abstract: 1494087 Magnetic heads DATA RECORDING INSTRUMENT CO Ltd 22 Oct 1975 [29 Oct 1974] 46816/74 Heading G5R [Also in Division H1] A magnetic recording and reproducing head comprises a substrate 3 having a magnetic part 4 and a non-magnetic part 5, a magnetic head core 7, 19 on the non-magnetic part 5 and having a transducing gap, a coupling winding 9 formed on the substrate 3 and extending through the transducing gap, at 15, and over the magnetic part 4, at 17, and a multilayer transformer winding 23, 26, 29, 32 formed on the magnetic part 4 and inductively coupled to the head core winding 9, 15, 17. The substrate 3 may comprise a ceramic part 5 glass bonded 6 to a magnetic ferrite part 4. The head unit 1 is formed by deposition on part 5 of magnetic Ni-Fe layers 7, 19, electrically insulating layers 8, 18 and an electrically conductive layer 9. A rear part of layer 19 contacts layer 7 to form a channel receiving a part 15 of conductor layer 9 which forms a single turn head coil having the part 17 on ferrite substrate part 4 coupled to a magnetic core 11 of the transformer 2. The multilayer transformer winding is formed by successive deposition of electrically insulating layers (not shown) alternating with electrically conductive layers 23, 26, 29, 32. Each of layers 23, 26, 29, 32 is formed as a rectangular multiturn spiral around limb 12 of transformer core 11, the spirals being connected in series with one another to form the transformer winding with a centre tap. In a modification, a second substrate carries part or all of core 11, e.g. the upper bridge part and portions of each limb 12, 13, and also carries winding layers 29, 32 and is positioned face-to-face with substrate 3 with the various depositions therebetween. The core 11 may be formed by arc plasma deposition and the layers 23, 26, 29, 32 may be thin films, formed by vacuum or sputter deposition or fired-on thick films; the transducer gap forming layer 9 may be about 2 micrometers thick. A common substrate may carry a plurality of heads and associated transformers to form a multi-track assembly.
Patent GB-1569686-A (GB)
Title: Smectic display cell
IPC: G02F1/13
Filed: 1977-11-10
Abstract: A liquid-crystal display element having more than two contrasting colours has a smectic liquid-crystal (5) of positive dielectric anisotropy which is embedded between two cover plates (1, 2). The liquid-crystal molecules assume a parallel homogeneous alignment with a very large rotational angle. This rotational angle can be continuously increased by increasing an applied AC potential, as a result of which Newton colours appear during observation due to crossed polarisers. <IMAGE>
Patent GB-1137438-A (GB)
Title: Arc suppressing circuit
IPC: H01H9/54
Filed: 1966-10-20
Abstract: 1,137,438. Arcing-preventing in switches. FENWAL Inc. 20 Oct., 1966 [21 Oct., 1965], No. 46889/66. Heading H1N. An arc-suppressing circuit for a two-position changeover switch 10 includes a solid-state gatecontrolled A.C. switch 22 connected across the switch, a load 18 and an A.C. power source 20. The power terminals 24, 25, of switch 22 are connected to the movable contact 12 and a fixed contact 14 of switch 10, respectively, and the gate terminal 26 is connected to a fixed contact 16 of switch 10. A resistor 28 is connected between terminals 26 and 25 and between fixed contacts 14, 16. Thus switch 22 is conducting only when movable contact 12 is transferring between the fixed contacts 14, 16. Resistor 28 is replaceable by an auto-transformer 30 connected across the source 20. A tap 30a on the winding of the auto-transformer is connected to the gate terminal 26 of switch 22 and to fixed contact 16 of switch 10. Specification 1,137,437 is referred to.
Patent GB-1536090-A (GB)
Title: Electrically driven food preparation apparatus
IPC: A47J43/07
Filed: 1977-11-10
Abstract: 1536090 Mixing apparatus VORWERK & CO INTERHOLDING GmbH 10 Nov 1977 [10 Nov 1976] 46914/77 Heading B1C A mixing container 10 and its cover 8 are retained, Fig. 2, on a base 1 (which accommodates the motor and a heater) by the end 36 of a lever 5 pivoted to a rod 14 at 6; the other end 18 of the lever 5 is supported by engagement in a depression 19 of a roller 21 carried at one end of a lever 2 fulcrummed at 3. When the (handle) end 34 of the lever 2 is raised as shown in Fig. 1, the lid and container are released and the rod 14 is moved axially by the spring 29 to open a switch 17 in the motor and heater circuits. A prong 9 engaged in a slot 35 in a tongue 23 withdraws from contact with the container a pivoted arm 11, the tip 12 of which carries a heat sensor 13 for thermostatically controlling the heater.
Patent GB-1563839-A (GB)
Title: Stabilized erythrocytes and their use
IPC: G01N33/96
Filed: 1976-11-12
Abstract: Stable lyophilisable erythrocyte preparations are obtained by treating erythrocytes which are suspended in aqueous isotonic solutions with a lower aliphatic aldehyde and a water-soluble salt of 2- or 3-valent chromium. The treatment with aldehyde and the chromium salts can take place successively in any desired sequence or simultaneously. The treated erythrocytes are washed and, if required, lyophilised. The resulting stabilised erythrocyte preparations can be coated with antigen and antibodies too. The coated erythrocytes can be employed for haemagglutination tests.
Patent GB-1512209-A (GB)
Title: Servo pressure operated piston arrangements
IPC: F15B20/00
Filed: 1974-10-31
Abstract: 1512209 Fluid-pressure servomotor systems LUCAS INDUSTRIES Ltd 11 Aug 1975 [31 Oct 1974] 47284/74 Heading G3P A piston 12 having a valve portion 15 controlling flow from an inlet 13 to outlet 14 is positioned by an electric torque motor actuated lever 24 controlling the leak-off from chamber 17 through orifice 21. Chamber 17 is supplied with fluid from inlet 13 via a restriction 19 in piston portion 16. A second orifice 22 opposes orifice 21 and communicates with chamber 23. Should torque motor 26 fail, a biasing spring 25 urges lever 24 anti-clockwise until seal 30 closes orifice 22 so that piston 12 is locked in position. Feedback between piston 12 and lever 24 is provided by rod 27 and spring 28.
Patent GB-1014996-A (GB)
Title: Method for increasing the elasticity of threads made of plastic materials
Inventor: VODICKA VOJTECH
IPC: D02J1/22
Filed: 1962-12-18
Abstract: A method for increasing the elasticity of monofilament threads of plastics materials-for example nylon-comprises twisting a thread, flattening the twisted thread-by for example passing it through rollers-untwisting the flattened thread so that the untwisted thread will have a "screw-like" profile, twisting the thread in a direction opposite to the first twist to make the "screw turns" closer, and finally stretching the thread to stabilize the twist.  Initially the thread is only partly drawn. In an example the thread is twisted 150 turns per metre in each direction, though the number of turns may be different in one direction from the other.