baber/WOPTO huggingface dataset:
Patent GB-1275769-A (GB)
Title: Improvements in television receivers
IPC: H04N5/14
Filed: 1969-09-22
Abstract: 1275769 Television receivers INTERNATIONAL STANDARD ELECTRIC CORP 22 Sept 1969 [28 Sept 1968] 46644/69 Heading H4F The size and shape of the luminous spot in the cathode ray tube of a television receiver is controllable to produce a single element of the image when elements of the video signal representing adjacent elements of the image differ by more than a predetermined amount, and to produce simultaneously a plurality of the image elements when video signal elements corresponding to adjacent image elements differ by less than the predetermined amount. In the PAL colour receiver shown electrostatic focusing lenses for the three colour guns are controlled by two outputs from a control circuit 20, so that when the outputs are equal the luminous spots are circular in shape whereas when the outputs are unequal the spots are elongated to cover also part of the line following the one being scanned. Inequality of the outputs from the circuit 20 is caused by a signal from a comparator circuit 19 produced when the luminance signal obtained from a luminance circuit 15 is almost identical with the luminance signal delayed by one line. The remainder of the circuitry is conventional. Separate comparator and control circuits 19, 20 may be provided for each colour gun, and it is not necessary to control the shapes of all three spots. Instead of elongating the spot when adjacent image elements are similar the spot may simply be de-focused so that it covers a greater area. The elements under comparison may be in the same line as one another in addition to or instead of being in adjacent lines. Alternatively they may be in adjacent lines, but also separated horizontally.
Patent GB-1127894-A (GB)
Title: A hatch and hatch cover construction
IPC: E06B3/48
Filed: 1965-11-03
Abstract: 1,127,894. Hatch-covers and hatchways. MAC GREGOR-COMARAIN. 3 Nov., 1965 [4 Nov., 1964], No. 46648/65. Heading B7S. A foldable hatch-cover comprises an even number, e.g. eight, of hinged panels or sections 1 to 8, Fig. 1, which when stowed in a space 9 adjacent one end of the hatchway are retained in a vertical attitude by skids 18 on the evennumbered panels 2, 4, 6, 8 resting upon inclined plates 19a, 19b, 19c and a curvilinear ramp 16, respectively, on either side of said space, the said plates and skids associated therewith being situated at differing horizontal distances, Fig. 5 (not shown), from a pair of ramps 12 that are aligned with a pair of rails or runways 11 on the outer sides of the hatchway coaming, which ramps and rails guide and support wheels or rollers 14, 17 on the panels 1, 2, 4, 6, 8 when the cover is moved on to, or off, the coaming. The ramps 12 guide and support rollers 15 on the odd-numbered panels 1, 3, 5, 7, while the cover is being folded or unfolded with the aid of cables 23, 25 attached to the panels 7, 8. To permit folding of the cover in the manner shown, the widths of the panels differ, hinges 21 between adjacent panels being arranged as shown. A roller 28 is mounted at the upper end of each of the ramps 12 to facilitate displacement of the panels on to, or off, the rails 11. In a second embodiment, Fig. 6, the panel 1 includes a flange that abuts an edge 32 on an end portion 31 of the coaming adjacent the space 9 when the cover is unfolded, the ramps 12 having their upper ends adjacent said edge rather than the rails 11 so that the panels can be of somewhat greater width and smaller number for any given length of hatchway.
Patent GB-1405209-A (GB)
Title: Weft thread inserters for rapier looms
IPC: D03D47/23
Filed: 1973-10-09
Abstract: 1405209 Shuttleless looms SOC ALSACIENNE DE CONSTRUCTIONS MECANIQUES DE MULHOUSE 9 Oct 1973 [17 Oct 1972] 47179/73 Heading DIE A gripper weft inserter of the rapier type has a pair of movable gripper jaws 2, 3 pivoted on a bar 8 and operable away from fixed jaws 4, 5 respectively by a lever 14 which acts on a pin 15 which in turn is loosely mounted in holes in lever 15 and the ends of jaws 2, 3. The jaws are normally urged closed by a spring 27 and are opened as the lever 14 strikes a fixed cam 35. As shown lever 14 is pivoted on bar 8 but may be pivoted on a separate bar nearer the end of inserter.
Patent GB-966685-A (GB)
Title: Improvements in or relating to vitamin k compositions
IPC: A61K31/355
Filed: 1962-12-14
Abstract: An improved Vitamin K3 composition comprises a granular Vitamin K3 alkali metal bisulphite compound the grains of which are coated with a coating substance soluble or swellable in water and soluble in at least one volatile organic solvent, e.g. polyethylene glycols polyvinyl pyrrolidones and methyl and ethyl celluloses.  The preferred Vitamin K3 compound is the sodium bisulphite compound. Prior to granulation the Vitamin K3 compound may be mixed with one or more carbohydrates, e.g. lactose, glucose, maltose, saccharose sugar alcohols, e.g. mannitol, starch or starch product.  The mixture is granulated with starch glue, aqueous gelatin solution or an alcoholic solution of polyvinyl pyrrolidone.  Optional additions are (a) antioxidants such as sodium or potassium metabisulphite and ascorbic acid and (b) non-toxic sequestering agents such as ethylene diamine tetra-acetic acid.  The granules may be added to an animal feedstuff especially a poultry feedstuff to provide a stable product, or may be incorporated in pharmaceutical compositions such as tablets and capsules.
Patent GB-1453719-A (GB)
Title: Supersensitised photographic emulsions
IPC: G03C1/29
Filed: 1973-10-12
Abstract: 1453719 Photographic silver halide emulsion CIBA-GEIGY AG 11 Oct 1974 [12 Oct 1973] 47670/73 Heading G2C A photographic silver halide emulsion is supersensitized in the red region using a supersensitizing combination of dyes comprising (i) a dye of the Formula:- where Y and Z are each S or Se; R 1  and R 3  are each alkyl or one is alkyl and the other is carboxyalkyl, carbomoylalkyl or sulphoalkyl; R 2  is H or alkyl; R 5 , R 6 , R 9  and R 10  are each H, halogen, alkyl, aryl, hydroxy or alkoxy; R 4  and R 8  are each H or together with R 5  and R 9  form a benzene ring; R 7  and R 11  are each H or together with R 9  and R 10  form a benzene ring; and X is an anion together with (ii) a dye of the formula:- where R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10  and R 11  and X have the meanings above, R 12  is alkyl, R 13  is H or alkyl and R 14  is hydroxyalkyl.
Patent GB-1267784-A (GB)
Title: Electromechanical time-delay relay
IPC: H01H43/10
Filed: 1970-10-07
Abstract: 1,267,784. Time switches. SCHLEICHER G.m.b.H. & CO. RELAISBAU K.G. 7 Oct., 1970 [24 Nov., 1969], No. 47711/70. Heading H1N. An electromechanical time-delay relay comprises a synchronous motor 7 for selectively driving via a reduction gear system 8 a time elapse wheel 11, electromagnetic means (not shown) for coupling the time elapse wheel 11 to the reduction gear system 8 and operable to effect switching of the relay in accordance with the setting of an adjuster knob 4 associated with a time elapse indicating scale 2 and continuously preselectable within one of a plurality of decadic ranges selectable by a second knob 6, each decadic range corresponding to a specific reduction ratio within the reduction gear system 8 which also comprises further reduction gears providing intermediate ranges for effecting expansion of the lower portion within each decadic range and being also selectable by said second knob 6. As shown, knob 4 controls the engagement of gears 10 with the selected reduction gear 8 and a pointer 5 co-operates with scales 2 and 3, respectively calibrated in 30 and 10 units of time and coloured in correspondence with the indications on range selector knob 6.
Patent GB-1137349-A (GB)
Title: Process for preparing polytetrafluoroethylene-containing powder
IPC: C08J3/12
Filed: 1966-10-26
Abstract: 1,137,349. Tetrafluoroethylene polymers and copolymers. FARBWERKE HOECHST A.G. 26 Oct., 1966 [26 Oct., 1965], No. 48048/66 Heading C3P. A polymer powder consisting of polytetrafluoroethylene or of a copolymer of at least 50% by weight of tetrafluoroethylene with one or more other compounds copolymerizable therewith or of a mixture of polytetrafluoroethylene with one or more of the above-mentioned copolymers or with other compounds is prepared by applying mechanical forces to the unsintered polymer powder in a dispersion consisting of water and an organic liquid which is capable of wetting polytetrafluoroethylene and is soluble in water to at most 15% by weight under the process conditions, at a temperature in the range of from 0‹ to 100‹ C. The mechanical forces may be applied by a stirrer or by shaking. The organic liquid may be an aliphatic, cycloaliphatic or aromatic hydrocarbon, an ether, an ester, an alcohol or a halogenated compound. Suitable liquids are a gasoline fraction, cyclohexane, benzene, toluene, butyl or amyl acetate, n-butanol, n-hexanol or a higher homologous alcohol, diethyl or diisopropyl ether, chloroform, perchloroethylene, chlorobenzene, n-octane, and n-hexane. Suitable comonomers are hexafluoropropylene, vinyl fluoride, vinylidene fluoride and trifluorochloroethylene.
Patent GB-1358974-A (GB)
Title: Pneumatic collision guard for motor vehicles
IPC: B60R19/20
Filed: 1972-10-19
Abstract: 1358974 Vehicle bumpers FIAT SpA and INDUSTRIE PIRELLI SpA 19 Oct 1972 [25 Oct 1971] 48244/72 Heading B7J  A pneumatic collision guard 1 for motor vehicles comprises a flexible-walled hollow body 3 of inextensible material containing air under pressure and having air discharge apertures 5 normally closed by respective brittle caps 7, and means to rapidly open the apertures 5 formed by respective percussion elements 13 carried by respective normally tensioned spring strips 12, which are released to break the caps 7 by action of an inertial mass 15 against a biasing spring 18. As shown in Fig. 1, the body 3 is a tubular core of elastomeric material, covered by reinforcing strips 4 of fabric or cord, and is enclosed by a protective casing 2 of yieldable material such as cellular polyurethane having a flexible external skin 2a. The apertures 5 lead to tubes 6 which terminate at the respective caps 7, as shown in Fig. 2. When deceleration reaches a particular value, the inertial mass 15 moves in the direction of arrow F against the action of the calibrated spring 18 so as to release the ends of spring strips 12 from a notched retaining plate 14 carried by the mass 15. The percussion elements 13 carried by the spring strips 12 break the brittle caps 7, thus allowing air to discharge from the hollow body 3 as it is deformed by a collision. The body 3 may carry on its interior, opposite to each aperture 5, respective plugs (22), Fig. 4 (not shown), of deformable material which close the apertures 5 before complete collapse of the deformed body 3 has occurred.
Patent GB-1134253-A (GB)
Title: Improvements in feedback amplifiers
IPC: H03K3/2893
Filed: 1966-10-27
Abstract: 1,134,253. Bi-stable threshold circuits. COMPAGNIE FRANCAISE THOMSON HOUSTON-HOTCHKISS BRANDT. 27 Oct., 1966 [5 Nov., 1965], No. 48290/66. Heading H3P. A threshold circuit comprises an amplifier 11 provided with a bias input S, a signal input V, and a feedback input H through respective resistances R1-R3, the feedback voltage H being derived from the output voltage Us via a limiter circuit 121 and a potential divider 122 and being stabilized against variations of temperature and power supply. With zero input the amplifier is cut off by the negative bias S; when the input voltage V rises to SR2 - the amplifier conducts and its output R1 rises rapidly to the value Us; the input voltage HR2 V must now fall by an amount - before the R3 amplifier cuts off again.
Patent GB-1018942-A (GB)
Title: Echo suppressors in transmission systems
IPC: H04B3/20
Filed: 1962-12-21
Abstract: 1,018,942. Two-way transmission. WESTERN ELECTRIC CO. Inc. Dec. 21, 1962 [Dec. 29, 1961], No. 48333/62. Heading H4R. In an echo suppressor which is located at the terminal of a 4-wire system and which allows the subscriber A thereat to break in while the distant subscriber B is still talking, that is, during intersyllabic pauses, a comparator 40 which gives an output proportional to the difference in amplitude of the signals in the two paths controls a vario-losser 38 in the W-E path but is disabled when the subscriber A breaks in under the control of a slow-release circuit SR, the latter being controlled in turn by relays 48, 52 ,  which are operative when signals are present in the E-W and W-E paths respectively. During a pause in B's speech the attenuation of 38 is reduced and relays 48, 94 fall back slowly in succession. If A intervenes before 94 is back, then relay 52 energizing operates the circuit SR to connect up relays 46, 44, the former disconnecting 38 from control by the comparator 40 and the latter inserting an impedance 72 in the W-E path to attenuate echoes. When A stops talking and B resumes the output of the comparator 40 passes to an integrator 74 which in due course operates relay 77 to short-circuit SR. Relays 46, 44 restore quickly in this case. If, however, B does not resume then SR is disconnected and 46, 44 restore with some delay. The integrator 74 must be such that relay 77 is not operated during double-talking, and in modifications, Figs. 2, 3 (not shown), a discharge circuit is provided for the capacitor 8. The inputs to the comparator 40 are controlled by a nogad (noise-operated gain-adjusting device) NC which operates vario-lossers 30, 32.
Patent GB-1506265-A (GB)
Title: Apparatus for stacking card-like information carriers
IPC: B65H29/40
Filed: 1975-11-25
Abstract: 1506265 Retarding and stacking sheets GAO GES FUR AUTOMATION UND ORGANISATION mbH 25 Nov 1975 [16 Dec 1974] 48377/75 Heading B8R Limp sheets, e.g. banknotes, are fed into individual pockets 11 defined by spiral partition walls 4 in a rotary drum, the walls being coated with material having a high coefficient of friction so that the sheets are retarded and ultimately halted by contact therewith. Each wall is interrupted midway between upper and lower cover-plates 2, 3 of the drum so as to accommodate a stripper plate 7 which, as the drum rotates, causes the sheets to slide out of the pockets 11 and into a stack 9 formed against a spring-loaded plate. The sheets are fed to the pockets by rollers 13, 14 at the end of a conveyer.
Patent GB-1332669-A (GB)
Title: Machine mountings
IPC: F16M7/00
Filed: 1970-10-13
Abstract: 1332669 Resilient mountings SULZER BROS Ltd 13 Oct 1970 [24 Nov 1969] 48619/70 Heading F2S A machine is resiliently mounted by at least one metallic helical spring 6<SP>1</SP> and at least one elastomeric spring 15 acting in parallel, the metallic spring being in contact with and therefore damped by the elastomeric spring. The helical spring is housed in recesses 17 in the elastomeric spring 15 and in the machine bass. In Fig. 1 (not shown), ten helical springs (6) are housed in recesses (5) in two elastomeric blocks (4) which are externally constrained over part of their height by retaining walls. Unstressed, the helical spring is longer and wider than the recess. The elastomeric spring may be made of silicone rubber or neoprene. The helical springs transmit between 85% and 95% of the total load supported by the mounting.
Patent GB-1059889-A (GB)
Title: Improvements in or relating to the cultivation of micro-organisms
Inventor: CHAMPAGNAT ALFRED
IPC: C12N1/02
Filed: 1962-12-31
Abstract: A micro-organism, particularly yeast, capable of growth in the presence of a feedstock consisting of or containing at least one straight-chain hydrocarbon, is cultivated in the presence of the feedstock, an aqueous nutrient medium and a gas containing free oxygen.  The feedstock may consist of or contain at least one straight chain hydrocarbon having at least 10 carbon atoms per molecule, or be a petroleum fraction containing 3-45% by weight of straight-chain hydrocarbons.  The straight-chain hydrocarbons are thereby removed from the petroleum fraction.ALSO:A micro-organism, particularly yeast, capable of growth in the presence of a feedstock consisting of or containing at least one straight chain hydrocarbon, is cultivated in the presence of the feedstock, an aqueous nutrient medium and a gas containing free oxygen, and thereafter a fraction containing the micro-organism is separated and washed by means of an aqueous solution of an edible surfactive agent.  The feedstock may consist of or contain at least one straight chain hydrocarbon having at least 10 carbon atoms per molecule, or be a petroleum fraction containing 3-45% by weight of straight chain hydrocarbons. Edible surfactive agents mentioned are sodium lauryl sulphate produced from a coconut oil fraction, sodium di-octyl sulphosuccinate and saccharide esters, for example esters of coconut fatty acids and sugars; sodium alkyl aryl sulphonates (non-edible) may be employed for a specific purpose, given below.  The cultivation broth is separated by decanting and centrifuging into fractions: (i) an oil phase containing yeast cells, (ii) an aqueous phase containing traces of oil and yeast, and (iii) a yeast "cream" consisting of yeast having a quantity of oil fixed on to the cells, together with aqueous phase.  Part of the aqueous fraction (ii) is recycled to the fermenter together with make-up quantities of the necessary nutrients.  Fraction (iii) or a blend of fractions (i) and (iii) is mixed with an aqueous solution of an edible surfactive agent and the emulsion so formed is broken down by centrifuging to obtain fractions (iv) an oil phase, (v) an aqueous phase containing surfactant, which phase is recycled for the treatment of fractions (i) and (iii), and (vi) a yeast "cream", consisting of yeast still contaminated by oil together with an aqueous surfactant phase.  If desired, fraction (iv) may be washed in the first place with a cheap non-edible surfactive agent and thereafter, with or without an intervening water wash, washed with an edible surfactive agent.  Finally the yeast may be dried under conditions suitable for its subsequent use as a foodstuff.  In the procedure of an example, cells of Candida lipolytica were washed with a 10% aqueous solution of a saccharide ester surfactive agent.
Patent GB-1472819-A (GB)
Title: Moving table
IPC: B21D1/00
Filed: 1975-12-01
Abstract: 1472819 Press-tool changing SMG SUDDEUTSCHE MASCHINENBAU GmbH I Dec 1975 [3 Dec 1974] 49234/75 Headings B3Q and B3H [Also in Division G1] A table 6 for moving tools (not shown) into a stamping &c. press (2), Fig. 1 (not shown), or into surface smoothness testing apparatus and capable of travelling along at least two sets of guide tracks (3, 4) extending at an angle to one other comprises rollers 14 swivellable about vertical axes to follow the selected track (3, 4) and movable vertically for raising or lowering the table, each roller 14 having its own drive motor 15. As shown, the rollers are raised by pistons 21 to rest the table on supports 10, and may be swivelled by a rack-piston 18 engaging teeth 17 on a carrier 13. A single fluid-pressure source on the table may supply the pistons 18, 21 and the drive motors 15.
Patent GB-1532547-A (GB)
Title: Decaffeination process
IPC: A23F3/38
Filed: 1976-11-26
Abstract: 1532547 Decaffeination SOC DES PRODUITS NESTLE SA 26 Nov 1976 [8 Dec 1975] 49402/76 Heading A2B Vegetable material is decaffeinated by (i) extracting with a water-immiscible liquid fatty material and (ii) separating the caffeine-laden fatty material, removing caffeine therefrom by vapourisation and recirculating the fatty material to (i). The regeneration in (ii) may be carried out at 50-450C, preferably 150- 250C, and 0.01-760 mm. Hg with a residence time of up to 4 hours, e.g. 0.3-20 minutes. The fatty material may be regenerated in film form, using falling film, wiped film or packed column techniques; such films may be up to 20 mm., preferably up to 3mm., thick. A carrier gas, e.g. steam or nitrogen, may be used to assist vapourisation. Decaffeination may take place in (i) at 0-150C and the fatty material may therefore be heated prior to, and cooled after, stage (ii). Although water is removed in (ii), a preliminary flash distillation of the laden fatty material is preferred. Occasional addition of fresh fatty material may be necessary; this may be treated with an adsorbent and included with the feed to stage (ii) to enable drying. 0.9-1.2% water (based on the fatty material) may be added to the regenerated fatty material prior to recirculation. The vegetable material may be solid ground or roast coffee or an aqueous extract of tea or of solid or ground coffee; solids containing 20-60% water are specified. Suitable fatty materials are safflower, soy bean, corn, peanut, coffee and olive oils, triolein and lard. Specification 1516208 is referred to.
Patent GB-1509440-A (GB)
Title: Movable formwork for building of bridge structures
IPC: E01D21/00
Filed: 1975-12-02
Abstract: 1509440 Apparatus for building a concrete bridge ING THOR FURUHOLMEN AS 2 Dec 1975 [2 Dec 1974] 49482/75 Heading E1G Apparatus for building a concrete bridge comprises an elongate formwork 3, Fig. 1A, in the form of two separable halves 3, 3', Fig. 5A, and which is horizontally movable on rolling and/or sliding units 5', mounted on a bridge column 2, and which each comprise two rolling and/or sliding supports enabling movement of the formwork in both the longitudinal and transverse directions, the supports, Fig. 6B, being in two parts joined by a vertical pivot 31, and a torsion resistor 4, Fig. 5A, having rolling and/or sliding supports 13' for mounting it on a completed portion 22 of the bridge deck and allowing transverse displacement of the formwork halves 3, 3'. The apparatus is advanced by two jacks which operate alternately. The supports, Fig. 6B, comprise a lower trolley 25, where wheels 25' run on laterally extending beams 5 connected to a bridge column 2, an upper trolley 23, pivoted to the trolley 25 about a vertical axis, whose wheels (23') support the formwork, and hydraulic jacks (24) which can raise or lower the upper trolley relative to the lower one. The beams 5 are attached to the bridge columns 2 by rods anchored in the columns and joined by connecting sleeves to secondary rods carrying the beams 5, Figs. 4A, 4B (not shown). The torsion resistor, Fig. 5A, comprises a cross beam 12 pivotable about a vertical axis 16 on a carriage 13 and transversely displaceable gantries 11 mounted on the beam and carrying the formwork halves 3, 3' which are in the form of box girders supporting shuttering 14.
Patent GB-1479146-A (GB)
Title: Filling holes by exothermic reaction
IPC: B22D7/06
Filed: 1973-10-24
Abstract: 1479146 Thermoaluminic reaction processes; ingot moulds GORICON METALLURGICAL SERVICES Ltd 6 Nov 1974 [24 Oct 1973 20 July 1974] 49494/73 and 32246/74 Headings B3V and B3F A hole in a body of ferrous metal, e.g. the base of an ingot mould, Fig. 2, is at least partly filled by introducing into the hole a heat generating composition which reacts exothermically to form a molten slag over fused metal, and also introducing into the hole a particulate refractory material which is bonded together by a solid mass of the slag on cooling. The refractory material may be introduced in admixture with the heat generating composition or added to the molten slag which bonds the refractory material forming a brick-like layer over metal deposited by the reaction. As the brick-like layer is worn it may be repaired with the composition including the refractory addition before the weld button is exposed. Suitable refractory materials are fired clay, firebrick, silicon carbide, magnesite, alumino silicates, burned dolomite, alumina and mixtures thereof. A suitable composition consists of thermite containing 60-70 weight per cent aluminium calculated as Al 2 O 3 , and 15-30% crushed fire-brick.