baber/WOPTO huggingface dataset:
Patent GB-396997-A (GB)
Title: Improvements in chimney and ventilating shaft or the like tops or terminals
IPC: F23L17/02
Filed: 1932-12-15
Abstract: 396,997. Chimney and like tops. LUDWIG, K., 30, Liliencronstrasse, Hamburg, Germany. Dec. 15, 1932, No. 35577. [Class 25.] In a chimney or the like top in which the primary outlet b is situated within a cap-like hood c providing enveloping side passages leading to a secondary lateral outlet h between the lower open end of the hood and a lateral bounding surface, the said surface is formed by an angular or sharp-edged flat plate or disc f, Fig. 2, presenting a substantial surface to rising air currents, or by an angular edged horizontal upper portion h<1>, Fig. 1, of the primary outlet shaft. In the former modification the ground plan area of the disc is not greater than that of the hood whilst in the latter form the ground plan area of the surface h<1> may be greater than that of the hood. The hood may be attached to the outlet b bv means of brackets d or members g serving also as guide vanes. The hood and the outlet may be of square or other prismatic form and may be arranged cornerwise so that the sides of the hood may be directly attached to the corners of the outlet member b. In this case, the disc f may be of similar shape to the hood or may be circular.
Patent GB-1003047-A (GB)
Title: Apparatus for casting building components from concrete
IPC: B28B7/02
Filed: 1962-09-19
Abstract: 1,003,047. Moulding concrete panels. HEINRICH KROG, [trading as HEINRICH KROG]. Sept. 19, 1962 [Nov. 18, 1961; June 22, 1962], No. 35618/62. Heading B5A. Large concrete building panels are cast in an adjustable heatable mould which comprises a base plate 1 having stop members 2 fixedly mounted thereon, and stop members 3a, 3b, 4a, 4b, adjustably mounted thereon by means of bolts 6. Moulding bars 7 and 8, defining the edge of the panel, bear against members 2 and similar bars 9, 10 bear against members 3a, 3b and 4a, 4b respectively, the bar 9 being replaceable by a bar of different size according to the position of bar 10 to give a larger or smaller mould. In a second embodiment, shown in Fig. 5, moulding bars 11, 12 and 14 rest against three fixed stop members 18 having a shape as shown in Fig. 6. A fourth moulding bar 15 is carried by a cross-member 151 which is adjustable along the members 18 by means of bolts 10 which run in grooves 18a, to give an adjustable mould. A cavity forming frame 19 may be clapped in a required position against the base plate by means of similar movable cross-members 16. The stop members 2 and 18 may be replaced by recesses in the base plate into which the moulding bars fit (see Fig. 8, not shown), and the moulding bars may be adapted to carry hollow truncated conical elements into which the ends of reinforcing members fit (see Figs. 9 and 10, not shown). The moulding bars, clamping bars and cavity forming members may be carried by a liner resting on the base plate 1 which liner abuts stop members as in Fig. 11, not shown.
Patent GB-1356224-A (GB)
Title: Phenoxazine compounds and pressure-sensitive recording materials  containing them
IPC: B41M5/136
Filed: 1972-07-31
Abstract: 1356224 Phenoxazine compounds HODOGAYA CHEMICAL CO Ltd and FUJI PHOTO FILM CO Ltd 31 July 1972 [2 Aug 1971] 35723/72 Heading C4P The invention comprises phenoxazine compounds of the formula where R 1  and R 3  are the same or different C 1 -C 5  alkyl groups; R 2  is C 1 -C 5  alkyl or phenyl; R 4  is H or CH 3 ; and Y is an alkyl, alkenyl, styryl, benzyl, phenoxymethylene, phenyl, naphthyl, furyl thienyl, pyridyl or quinolyl group. The styryl, benzyl, phenoxymethylene, phenyl and naphthyl groups are optionally substituted by Cl, or an NO 2 , C 1 -C 5  alkyl, alkoxy, dialkylamino or OH group and the quinolyl group is optionally substituted in the 2-position by C 1 -C 5  alkyl or phenyl. The compounds may be prepared by reacting 1 mole of a leuco compound of formula with 1-5 moles of an acid halide of formula Y-CO-X where X is a halogen atom, in the presence of an acid acceptor (1-10 moles) at 30-130‹ C. in an inert organic solvent for 1-5 hours, followed by oxidation with H 2 O 2 . The compounds are used as colour formers in pressure sensitive copying paper.
Patent GB-1057313-A (GB)
Title: A method for the setting up of recuperators
IPC: F28F19/02
Filed: 1963-09-11
Abstract: 1,057,313. Furnace recuperators. INDUSTRIE - COMPANIE KLEINEWEFERS KONSTRUKTIONS - UND HANDELS G.m.b.H. Sept. 11, 1963 [Nov. 20, 1962], No. 35798/63. Heading F4S. In a method of constructing a heat recuperator of the kind in which recuperator tubes are disposed in a heating-gas duct, the tubes after being assembled in the duct and before the recuperator is put into use, are exposed to an oxidizing gas of controlled composition to cause a layer of an oxide such as chromium oxide, to be formed on the tube surfaces. The inner and outer tube surfaces may be simultaneously treated by an oxidizing gas.
Patent GB-819748-A (GB)
Title: Closure caps for petrol tanks, oil tanks, or other containers
Inventor: HEVEY JOHN
IPC: B60K15/04
Filed: 1956-11-23
Abstract: 819,748. Closure caps. WILMOTBREEDEN Ltd. Nov. 18, 1957 [Nov. 23, 1956], No. 35849/56. Class 125(3). A closure cap for vehicle fuel tanks &c. has a body part 5, with an integral flange 6, an annular ring 7 with sealing washer 8 and a disc 11 with integral projections 12 which engage bayonet fashion with the container neck, a cover part 15 being rotatably mounted on part 5 by means of an integral post 16 and retaining disc 17 connected by screws 18 and a key operable barrel lock 20 within post 16 has an eccentric peg 21 engaging a slot in a catch piece 23 with a nose engageable with ribs 25 on the body part 5 so that for one setting the cover 15 is freely rotatable on part 5 and for another lock setting the unit is rotatable as one piece to disengage the cap from the container neck. Corrugated spring washers 9, 19 are provided between flange 6 and ring 7 and between parts 15 and 5 respectively.
Patent GB-980435-A (GB)
Title: Improvements in the production of polyurethane elastomers
Inventor: WATSON JOHN WILLIAM
IPC: C08G18/73
Filed: 1960-11-03
Abstract: A process for producing a thermoplastic polyurethane elastomer comprises mixing under anydrous or substantially anhydrous conditions a reaction product of a polymeric diol with an aliphatic diisocyanate, said reaction product containing two terminal or substantially terminal groups in the molecule, each group comprising an aliphatic radical containing an isocyanate substituent, with a diol and a catalyst to accelerate chain extension of the reaction product.  Isothiocyanates, thioethers and thiols are included.  The polymeric diol is preferably linear, with a molecular weight above 500, and can be a polyether, polyester or polyesteramide. Dicyclohexylmethane diisocyanate and hexamethylene diisocyanates are specified diisocyanates. Preferably 2 to 3 moles of diisocyanate per mole of polymeric diol is used.  The diol for the chain-extension is preferably a di-primary aliphatic alcohol, though it may be secondary.  Butane diol, glycol and trimethylene glycol are mentioned.  The molar ratio of aliphatic diisocyanate to chainextending diol can be in the range 1:0.9(n - 1)/n to 1:1.1(n - 1)/n where n is the molar ratio of diisocyanate to polymeric diol. Suitable catalysts are those referred to in Specification 976,902. The reaction product of the polymeric diol can be dissolved in or prepared in solvents, e.g. acetone, methyl isopropenyl ketone and chlorobenzene.  In examples (1) a mixture of a polytetramethylene glycol/dicyclohexyl methane diisocyanate reaction product, butane-1,4-diol and dibutyl tin dilaurate is formed into thin layers and heated at 100 DEG C. to give a film; (2) a reaction product of neopentyl glycol-sebacic acid polyester and dicyclohexylmethane diisocyanate is heated with 1,4 - butane diol, dibutyl - tin - dilaurate and chlorobenzene.  The chlorobenzene is then removed under vacuum to leave a rubbery thermoplastic elastomer, soluble in methylene chloride, acetone and methyl ethyl ketone.
Patent GB-1269835-A (GB)
Title: Process for the production of multi-coloured yarns
IPC: D06B11/00
Filed: 1969-07-16
Abstract: 1,269,835. Multicolour dyeing. CIBA-GEIGY A.G. 16 July, 1969 [18 July, 1968], No. 35884/69. Headings D1B and D1L. Multicoloured yarn is made by passing a knitted fabric through a padding mangle while applying a plurality of dyestuffs from independent and regulatable supplies through nozzles which are moveable transversely to the fabric, which is unravelled following dyefixation. The nozzles may be reciprocated automatically or manually or may be preset in fixed positions for a given run. As described the dye is allowed to flow onto one roller of the mangle and is thus conveyed into the nip. Example fabrics are polyamide and polyester types and example dyestuffs are of the anthraquinone, azo (including metal complex) or phthalocyanine types. Many other fabrics and dyes are listed. The dye vehicle may be a paste of, e.g. sodium alginate or locust bean flour with sodium nitrobenzene sulphonate, pine oil, olein, KOH and water (for anthraquinone dyes) or of locust bean flour or crystal gum with urea, thiodiglycol, ammonium sulphate, water and optionally phenol (for azo or phthalocyanine dyes).
Patent GB-1241448-A (GB)
Title: Transmittance to frequency converter and method therefor
IPC: G01J1/16
Filed: 1968-07-26
Abstract: 1,241,448. Photo-electric transmissivity measurement. BECKMAN INSTRUMENTS Inc. July 26, 1968 [July 28, 1967], No.35889/68. Heading G1A. [Also in Division G4] The transmissivity of a sample is measured by photo-electrically sensing the light transmitted through a sample and through a reference standard, to obtain sample and reference currents, the time average magnitudes of which are compared by apparatus including switching means the duty cycle of which is proportional to the transmittance of the sample. Optical path Light from a source is passed through filter 12 to sample and reference cuvettes 13, 14, the transmitted light being detected by photo-tubes 15, 16 having anodes A and cathodes K. Alternatively, photo-diodes may be used. The optical system may also include lenses to focus the source on the detectors, a half-silvered mirror may split up the reference and sample beams, or a single spherical mirror or pair of mirrors may be associated with the source. Operation of the system is controlled by clock pulses Fo from a generator 24. This controls the time average value of the reference current by controlling, through flip-flop 23 and NAND gate 26, the opening and closing of a transistor switch 18 which when closed conducts the output of the reference photo-cell to earth. During such periods I s  the sample current charges an integrating capacitor 19 negatively. When the voltage Vc on the capacitor goes below the threshold of amplifier 21 the next clock pulse will cause switching of flip-flop 23 to its "1" state and opening of switch 18. Capacitor 19 now integrates the difference value between the sample and reference currents I R  until the next clock pulse which occurs directly after the level Vc goes above the amplifier threshold, when flip-flop 23 is reset and the switch 18 again opened. At this clock pulse, a pulse FOUT is obtained via NAND gate 27. This cycle of events is repeated to produce a pulse train FOUT representative of the switching frequency of flip-flop 23 (and switch 18). This frequency is then compared with the clock pulse frequency Fo to provide a measure of the transmissivity of the sample. The measurement may be obtained digitally by use of a pre-set time base accumulator (41), a NAND gate read-out accumulator and buffer, Fig. 4 (not shown). Alternatively, the output of flip-flop 23 can be filtered to obtain an analog voltage and this applied to a voltage divider circuit for comparison with Fo to obtain an analog value of the transmittance. The amplifier 21 is detailed in Fig. 3 (not shown) and includes an insulated gate field effect transistor providing circuit isolation. The capacitor 29 compensates for inter-electrode capacitance in the reference photo-tube 16.
Patent GB-1272394-A (GB)
Title: Automatic hair cleaning and dressing machine
Inventor: PARKER GORDON
IPC: A45D19/14
Filed: 1968-07-29
Abstract: 1,272,394. Automatic hair dressing apparatus. G. PARKER. 28 July, 1969 [29 July, 1968], No. 35981/68. Heading A5R. Automatic hair dressing apparatus comprises a segmented hood for covering the hair, which hood oscillates around the axis of a tube 22 containing a hood-carrier 7, a flow path attached to and partly within the hood for delivering treating liquids to the hair, means for controlling the amount of each liquid transferred to the hood, members 4 attached to the hood segments 17 for engaging the hair, and an adjustable basin 6. The hood segments 17 having edge seals 19 are pivoted one to each side of the hexagonal outer surface of a tube 3 secured to the carrier 7 and are urged towards the hair by springs 18. A plurality of the members 4 are located on each segment 17, each member 4 comprising a brush or sponge pad on one end of a tube, the tube being urged by a spring towards the hair. The hood is oscillated by linkage connected to an electric motor 29, or by pneumatic or hydraulic means. The basin 6, having a sealing lip 15 for engagement by the user's neck, may be moved towards and away from the hood by a rack and pinion. Treating liquid reaches the hair from the flow path through spraying devices 5 on the segments 17 and through a central spraying device on the carrier 7. Receptacles (31) to (34), Fig. 4 (not shown), contain treating liquids which may pass, together with heated water from a tank (37), via solenoid-controlled valves (38) to a mixing chamber (36), and via a pump (40) and a solenoid valve (41) to the hood. The type of liquid, and amount thereof required, and the operation of the motor 29 and pump (40) may be controlled by a timing system.
Patent GB-785741-A (GB)
Title: Improvements in machines for producing filter mouthpiece cigarettes and the like
IPC: A24C5/47
Filed: 1955-12-16
Abstract: 785,741. Coating webs. KÍRBER, K. Dec. 16, 1955 [April 6, 1955], No. 36116/55. Class 140. In a gumming and feeding device for connector sheets in machines for producing filter mouthpiece cigarettes in which the connector sheets are gummed, fed by a suction drum on to the cigarette mouthpiece, groups lying in the grooves of a rotary drum, and stuck down on these groups, a paper strip to form the connector sheets is supplied by means of a guide to a gumming device, the guide being arranged to withdraw the strip from the gumming device, e.g. when the machine stops. A gummed strip 3 is fed to a drum 1 holding pairs of cigarettes separated by a double length filter tip by passing the strip in contact with rollers 4 to 8, between rollers 14, 15 serving as a guide, over a gluing roller 9, between a cutting device 11 and suction drum 10 which severs the strip into lengths which are stuck on the tips. For temporary stoppage of the machine, the applicator roller 9 continues to rotate to prevent the glue drying, and the paper strip is lifted from the roller by the two rollers 14, 15. The rollers 14, 15 are mounted on a lever 16 mounted on a pivot 17 which also supports a lever 25. The lever 25 has a pin 24 which is engaged in slots in a fork 21 on the end of a core 19 of an electromagnet 18. Stopping the machine completes a circuit for the electromagnet which is energized moving a plunger 22 connected to the fork 21 and one end of an angle lever 26 from an abutment 28 on the lever 25. Further movement of the plunger depresses the lever 25 which raises the lever 16, lifting the paper strip from the gluing roller. This can also be effected by hand during operation of the machine by depressing the plunger by pressing a stop 32. The strip may be returned to the gluing roller automatically by restarting the machine which de-energizes the electromagnet and the lever 16 is returned by springs 30, 31. When the lever is displaced, a stop 34 on the lever 25 engages a recess 35 in the well of the machine to retain it in position. The lever is returned by depressing it by hand and by the action of the spring 30 when the machine continues to operate.
Patent GB-1527727-A (GB)
Title: Nematic liquid crystal compositions
IPC: G02F1/13
Filed: 1975-09-03
Abstract: 1527727 Liquid crystal compositions BECKMAN INSTRUMENTS Inc 3 Sept 1975 [3 Sept 1974 (2) 27 May 1975] 36195/75 Heading C4X A liquid crystal composition comprises a positive dielectric anisotropy (PDA) constituent comprising at least one compound of Formula I where R is alkyl or alkoxy with 1-9 carbon atoms; a negative dielectric anisotropy (NDA) constituent compatible with the PDA constituent (i.e. forms a mixture therewith having a nematic phase whatever the mixing ratio) comprising a compound of Formula II where one of R and R<SP>1</SP> is methoxy and the other is alkoxy or alkyl with 1-7 carbon atoms, and/or a compound where R and R' are each alkyl with 1-7 carbon atoms and a and b are both hydrogen or one is hydrogen and the other chlorine; and an NDA constituent not compatible with the PDA constituent and comprising a compound of Formula II where R and R' are alkyl with 1-7 carbon atoms or alkoxy with 2-7 carbon atoms. The composition may be nematic with PDA for use in twist cells, or may contain up to 10% of a chiral material, e.g. of Formula I or II where R or R' is alkyl or alkoxy with 4-9 carbon atoms and contains an optically active centre, and the other of R and R' in Formula II is alkyl or alkoxy with 2-7 carbon atoms, or cholesteryl nonanoate; dichroic dyes may also be present. It is stated that mixtures of certain of the incompatible constituents produced a smectic material.
Patent GB-305163-A (GB)
Title: A method of and apparatus for selectively discharging liquids according to their electric conductivity, particularly applicable for selecting pure water from water of condensation and returning it to boilers
IPC: F22D5/24
Filed: 1928-12-07
Abstract: 305,163. Papeteries Navarre. Feb. 1, 1928, [Convention date]. Feedwater, supplying and controlling.-In apparatus for returning to a boiler water of condensation from steam heaters used in chemical works, such as cellulose factories, valves operated by servomotors automatically control the collection and return of pure water and the rejection of water accidentally contaminated by leakages in the heating system. The valve 29 controlling the discharge of water from the collecting vessel 1 either to the boiler 45 or through the outlet 46 to waste is operated by a servomotor 18 controlled by a solenoid 37 in a circuit the current in which is shunted across plates 3, 4 when the water in the collecting vessel is impure and therefore conductive. The valve 25 controlling the entrance of water to the vessel and the discharge therefrom under steam pressure through a pipe leading to the valve 29 is operated by a servomotor 17 controlled by a solenoid 36 in a circuit containing contacts 39, which are closed when a float 8 in the vessel reaches its highest position. The valve 25 is then open to discharge, and the water is forced out of the vessel by steam admitted through a piston valve 11 operated by a rod connected to the stem of the valve 25. Oil is supplied to the servomotors by a pump 35. In case of failure of current or oil pressure, springs 26, 27 set the valve 25 at an intermediate position, and a spring 28 sets the valve 29 to open the waste outlet 46. The movements of the valve are registered by recording instruments 30, 31.
Patent GB-374408-A (GB)
Title: Improved apparatus for distributing cards and the like articles
IPC: A63F1/12
Filed: 1930-12-02
Abstract: 374,408. Dealing playing-cards &c. POOLMAN, A., 12, Parkstraat, The Hague. Dec. 2, 1930, No. 36309. Convention date, Dec. 3, 1929. Void [Published under Sect. 91 of the Acts]. [Class 132 (ii).] In an apparatus for distributing playing- cards and like articles, a distributer rotatably mounted on a base comprises a card holder and take-off roller or member driven through a mechanical connection with an axis mounted on the distributer, the axis being driven by displacement of the distributer relative to the base through the medium of an element arranged on the axis and travelling on a stationary part of the base The distributer 2 rotatable about a vertical spindle 20 supports the cards in a holder 5 provided with a slidable bevelled block 15. When the distributer is rotated by hand or by a spring motor, a roller 10 driven by a band 8 and by a crown wheel on the base, feeds the cards singly to a faster-running roller 16 which delivers the cards at four or other number of places according to the gear ratios of the apparatus. A stop 19 prevents the cards from being thrown out too far, and the cards may be further guided by an additional roller below the roller 16. Instead of the take-off roller 10 a reciprocating take-off member may be employed or the cards may be removed by suction.
Patent GB-452205-A (GB)
Title: Production of rubber goods directly from latex
IPC: C08J5/02
Filed: 1934-12-18
Abstract: A mould coated with a colloidal dehydrant capable of absorbing a large amount of water, is dipped into latex, and removed to allow the latex film to become partially dehydrated; the process is repeated until the requisite thickness of rubber is obtained, each film being dehydrated by the colloid through the moist rubber layer already deposited.  The mould may be porous or non-porous, aluminium being preferred, and it is coated by dusting or dipping in a solution or dispersion of a colloid such as gum karaya, gum arabic, gum acacia, starch, casein, ammonium alginate, carob bean gum, methyl cellulose, and colloidal clays such as bentonite, wilkenite, ardmorite. According to an example, a mould is dipped in a solution of karaya gum, dried, and dipped for two minutes into 60 per cent latex.  The mould is slowly withdrawn and exposed to the air for several minutes, and the process is repeated.
Patent GB-368734-A (GB)
Title: Improvements in extrusion apparatus
IPC: B29C48/06
Filed: 1930-12-03
Abstract: 368,734. Extruding sheathing for cables &c. WESTERN ELECTRIC CO., Ltd., Bush House, Aldwych, London.- (Trebes, B. M. A. ; 1306, Lombard Avenue, Oak Park, Illinois, U.S.A.) Dec. 3, 1930, No. 36509. Addition to 356,758. [Class 87 (ii).] Relates to extrusion dies as disclosed in the parent Specification and consists in extending the central nozzle 2 through which the core 1 emerges, so that the nozzle is in advance of the plane in which the orifices of the die are located. An extension of 2¢-3 mm. is stated to be satisfactory, when extruding insulation of 15-20 mm. diameter at a speed of about 300 metres per hour.
Patent GB-1385552-A (GB)
Title: Reinforcement of textile materials
IPC: B60N3/04
Filed: 1972-08-04
Abstract: 1385552 Reinforcing apertures in textiles MILES REDFERN Ltd 6 June 1973 [4 Aug 1972] 36600/72 Heading B5A Apertures in textile materials, e.g. tufted carpet, are reinforced around their periphery by a layer of thermoplastic material by filling a mould with the thermoplastic material in particulate or powder form, heating it to at least soften the material, and pressing the mould into contact with the textile material so that the layer is positioned around the aperture, the mould having an inner wall projecting through the aperture. As shown in Fig. 3, a tufted carpet 10 having a preformed aperture 11  is reinforced by thermoplastic material 16 applied thereto in a mould 12 having an inner wall 15 and a rim 14 so as to bond thereto and to the backing material 17 of the carpet. The mould and carpet may be placed between the platens of a press for the pressing operation. The thermoplastic material may be polyethylene or polyvinyl chloride and may be pigmented.