baber/WOPTO huggingface dataset:
Patent GB-258602-A (GB)
Title: Apparatus for automatically collecting and analysing alveolar air
IPC: G01N33/497
Filed: 1926-09-15
Abstract: 258,602. Regelsberger, H. Sept. 16, 1925, [Convention date]. Breath-testing appliances.-Alveolar air is collected in apparatus which is operated automatically by the flow of the respired air or by the rhythmic motion of parts of the body involved in the act of respiration, and the air so collected is automatically analyzed. As shown, a valve V<a>, forming part of an electric circuit I, delivers the expired air to a tube from which branches a sampling tube L intended for the withdrawal of the air discharged during the end of respiration. The tube L is connected to a rubber tube which is normally compressed and closed by the armature A<2> of an electromagnet M<2>, this electromagnet forming part of a circuit II comprising also a battery E<2> and a contact K<2>. The arrangement is such that when the valve V<a> is closed the circuit I is operative and the electromagnet M<1> attracts the armature A<1>. This establishes contact K<2> and energizes circuit II, with the result that the electromagnet M<2> attracts the armature A<2> whereby the sampling tube is opened. A small volume of air, dependent in amount on the depth to which the contact K<2> is immersed, is drawn into the burette before the sampling tube is automatically closed by the opening of the valve V<a>, and the collection of samples in this way is automatically repeated until the desired volume has been collected in the burette, whereafter analysis is made in an automatic apparatus of known type. To render the collecting apparatus inoperative when the desired volume has been accumulated, a circuit III is provided comprising a battery E<3>, electromagnets M<3>, M<4>, contacts o, m in the burette at the highest and the lowest level of the liquid respectively, and a permanent contact u. When the liquid in the burette sinks below the contact m, the magnet M<4> is put out of action whereby the catch S<3> is released and the contact K<1> in the circuit I is broken. The total volume of expired air then escapes through the valve V<a> into the atmosphere until the liquid has risen again to the contact o, whereafter the contact K<1> is reestablished and the collection of samples proceeds again as described above. In a modified apparatus, suitable for use with an unconscious person, the tube L is directly connected tu the nasal passage of the patient, and the valve V<a> is operated through a. tube connected to an indiarubber ball secured by a belt against the patient's chest.
Patent GB-583691-A (GB)
Title: Improvements relating to attachment devices for securing earthing wires in electrical installations
IPC: H01R4/60
Filed: 1944-11-17
Abstract: 583,691. Wire strainers. MOLE & SON, Ltd., M., and MOLE, P. A. Nov. 17, 1944, No. 22847. [Class 45] [Also in Group XXXVI] A device for securing an earthing-wire e comprises a U-shaped part b bound to a pipe d by the wire e and an inverted channel a enclosing and secured to the part b by the nuts c so as to grip the wire between the parts a, b. In a modification the part b may be made of strip carrying a laterally projecting screw or screws.
Patent GB-1498437-A (GB)
Title: Method of manufacturing cheeses
IPC: A23C19/028
Filed: 1975-05-23
Abstract: 1498437 Cheese manufacture P R LAGUILHARRE 23 May 1975 [29 May 1974 2 Nov 1974] 23006/75 Heading A2B In the manufacture of cheese in which coagulation is carried out on an aqueous solution of a protein concentrated dairy product a predetermined amount of water is added to an aqueous solution of a dairy product S, to give a solution S, having a lower percentage of lactose and mineral salts concentration; the solution S 2  is controllably concentrated on an ultrafiltration membrane to give a retained portion R 1  in which the ratio of protein to lactose or the salts assumes a desired ratio α and before and/or after coagulation of the protein, removing excess water to obtain the desired percentage of dry matter. The excess water may be removed from R, by evaporation, inverse osmosis or draining. In the process the aqueous solution S, is a retained portion R 0  obtained by ultrafiltration of the mother solution and whose protein content represents a chosen fraction of the desired final content; the amount of water added is such that α can be attained in R, with a protein content of about 10%; and ultrafiltration is conducted so that the protein content in R 0  is about 10%. Cream may be incorporated into the concentrate before coagulation.
Patent GB-1203963-A (GB)
Title: Improvements relating to aircraft engine vortex suppressors
Inventor: JAWOR ZBIGNIEW
IPC: F02C7/05
Filed: 1967-05-18
Abstract: 1,203,963. 963. Gas turbine propulsion plant. MINISTER OF TECHNOLOGY. May, 16 1968, [May, 18 1967], No.23045/67. Headings FIG and F1J. An aircraft gas turbine jet propulsion engine having an air intake duct defined by a fairing 11 has means for producing a localized suction force which acts along the underside of the fairing 11 to divert free vortices induced by air ingestion into the engine away from the intake lip 14. In the case of an engine having a front fan 10, the suction localizing means may comprise deflector plates 15, 16 hinged to opposite sides of the fairing 11. The plates 15, 16 have the effect of constraining the air-flow B induced by the fan exhaust stream A. After take-off, when suction concentration is no longer required, the plates 15, 16 can be moved by hydraulic jacks to lie against the surface of the fairing 11. The plate hinges may be capable of movement relative to the fairing 11 so that when the plates are swung outwardly they are also lowered closer to the ground. The plates 15, 16 may be extended slightly beyond the rear edge of the fairing 11 to improve suction effects. The suction may also be increased by a rearwardly directed nozzle 17 receiving air or gas from a highpressure commpressor or turbine exhaust. The nozzle may be extended a short distance around the fairing 11 to form a slot. In the case of an engine without a fan, the suction may be generated solely by such a nozzle or slot.
Patent GB-1077367-A (GB)
Title: Production of n:n'-disubstituted tetrahydrobipyridyls
Inventor: COLCHESTER JOHN EWARD
IPC: C07D211/70
Filed: 1965-05-31
Abstract: N,N1 - Disubstituted - 1,11,4,41 tetrahydro - 4,41-bipyridyls are prepared by the interaction of a solution of an alkali or alkaline earth metal in a substantially anhydrous solvent containing ammonia with a quaternary pyridinium salt.  The bipyridyls so prepared may be oxidized to bipyridylium salts by, for example, the methods described in Specifications 1,073,081 and 1,077,366.
Patent GB-655587-A (GB)
Title: A process for the smelting of ores, more especially iron ores
IPC: C21B5/00
Filed: 1948-09-01
Abstract: In a process of smelting ores, particularly iron ore, in a shaft furnace fuel with at least part of the ore in the form of briquettes, preferably egg-shaped and of not more than 100 c.c. volume, is charged to a height of 1.5 to 4 metres above tuyere level and blown by hot air blast, the tuyeres being in an opposed system and the distance apart of any pair across the furnace being not greater than 2 metres.  The briquettes may be bound with pitch alone, or sulphite waste liquor, waterglass or lime, alone or in combination with pitch. The fuel may be poorly coking coal. A cold air blast may be used, and 95 per cent. oxygen may enrich either hot or cold blast, or may replace the air blast.  The furnace may have a water-jacket and may be of rectangular cross section.
Patent GB-781590-A (GB)
Title: Improvements in or relating to devices for measuring speeds of flow of gaseous or liquid media
IPC: G01F1/20
Filed: 1954-08-09
Abstract: 781,590. Measuring fluid flow electrically. STUDIENGES. KOHLE, [formerly STUDIENUND VERWERTUNGSGES.]. Aug. 9, 1954 [Aug. 8, 1953], No. 23123/54. Class 40 (1). [Also in Group XXIX] A device for measuring fluid flow comprises a cylindrical duct with an elongated resistance member movable longitudinally in it against a spring and forming a constant constriction in the duct, and means for producing a counter-force to return the member to its initial position when fluid flow through the duct tends to displace it, the counter-force serving as a measure of the flow. The Figure shows an arrangement in which the counter-force is electromagnetic; fluid flowing as indicated by the arrows past resistance member 2 in tube 1 tends to move it downwardly against spring 3 and this is counterbalanced by adjustment of the current in a coil 12 which acts upon a ferromagnetic member 2a until the member 2, which is also ferromagnetic, is returned to its initial "no-flow" position. The position of member 2 is indicated by the current in a secondary circuit 10, the coupling of which to an A.C.-supplied primary winding 8 depends on the position of member 2; the current in coil 12 is therefore adjusted until measuring instrument 14 is returned to the "no-flow " position (this may be effected by a servo-device controlled by current in winding 10 to adjust variable resistance 13) and the current in coil 12 then gives a measure of fluid flow. Variation of the force of spring 3 due to ageing may be compensated for by adjustment of the coils 8, 10 and 12 relative to the.duct 1 by means of a fine drive 19. The variable mutual inductance arrangement for indicating the position of member 2 may be replaced by a variable capacitance arrangement, a movable plate attached beneath member 2 moving between two fixed plates outside the tube.
Patent GB-381662-A (GB)
Title: Improvement in lenses
IPC: G02B15/14
Filed: 1931-08-18
Abstract: 381,662. Lenses. WARMISHAM, A., 1625, Hinman Avenue, Evanston, Illinois, U.S.A., and KAPELLA, Ltd., 104, Stoughton Street, Leicester. Aug. 18, 1931, No. 23207 and 27304. [Class 97 (i).] Relates to lenses comprising two separately achromatized members separated by an air space S1, the length of which can be varied in order to vary the equivalent focal length of the lens. According to the invention the focal length of the front member is numerically not substantially less than four times that of the rear member. As shown both members are convergent, the front member consisting of a doublet A and the rear member consisting of two separated components B, C, of which the former is a doublet and the latter consists of a collective element I and a dispersive element II separated by an air space III in the shape of a collective lens. Specifications 180,949, 258,092, [both in Class 97 (i), Optical systems &c.], and 361,359 are referred to.
Patent GB-511816-A (GB)
Title: Improved method of obtaining photographic contrasts and photosensitive layers for use therein
IPC: G03C1/62
Filed: 1938-08-06
Abstract: 511,816. Photographic-processes. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Aug. 6, 1938. No. 23314. Convention-date, Aug. 9, 1937. [Class 98 (ii)] In producing a physically developed metal image by means of a diazonium compounds, the exposure is made on a photo-sensitive layer whose support 'is a lyophile transparent film containing a colloidally dispersed material which is substantially insoluble in the solution used for the physical development and by which local variations 'of concentration of the photo-sensitive diazonium compound are caused in the film. The colloidally dispersed material may either be introduced during the manufacture of the suoport, or formed as a colloidal precipitate thereon. In an example, a film of regenerated cellulose is soaked in a nitric solution of bismuth nitrate which is then hydrolysed by a mixture of ethanol and water. The film is then sensitised by a' solution containing 2-diazo-1-hydroxy-6-. methyl-benzene-4-sulphonic acid and mercurous nitrate or silver nitrate, the exposed film being physically developed by a solution containing metol and tartaric acid. An alternative sensitiser contains p-diethylamino-benzene-diazonium chloride-zinc chloride and silver nitrate or p-diphenylamine-diazonium sulphate and silver nitrate. Alternatively the film may be soaked in zirconium oxychloride and then sensitised. Specifications 391,677 and 439,005 are referred to.
Patent GB-1133617-A (GB)
Title: Dyeing process
Inventor: MITCHELL JOHN
IPC: D06P1/12
Filed: 1965-06-01
Abstract: 1,133,617. Dyeing process. IMPERIAL CHEMICAL INDUSTRIES Ltd. 16 May, 1966 [1 June, 1965], No. 23354/65. Heading D1B. Natural, artificial, or synthetic polymeric materials are coloured by impregnating with a solution in aqueous acid of a compound of formula in which X is an aryl or heterocyclic residue, Y is an alkyl, aryl, or substituted aryl radical, Z is an aryl or substituted aryl radical, A is a divalent aliphatic radical, R<SP>1</SP> is an alkyl, substituted alkyl, cycloalkyl, or substituted cycloalkyl radical, R<SP>11</SP> is a hydrogen atom or an alkyl, substituted alkyl, cycloalkyl or substituted cycloalkyl radical, n is an integer and heating the impregnated material to a temperature above 90‹C in presence of water or steam and an acid. The impregnation and heating regenerates the azoacytacetorylamide on the material, yellow shades are obtained in cotton and polyacrylonitrile substrates. Printing is also exemplified.
Patent GB-705908-A (GB)
Title: Pressure-sensitive adhesive tape
IPC: C09J7/21
Filed: 1950-09-25
Abstract: Non-woven fibrous material, e.g. paper, is impregnated with a composition consisting substantially wholly of a butadiene-acrylonitrile polymer admixed with a mixture of copolymers of butadiene and styrene wherein at least one copolymer is made with more than 70 per cent. of styrene.  Several composition ranges are given, embracing (1) 40-80 parts of a butadiene-acrylonitrile copolymer consisting of at least 40 per cent. butadiene and at least 30 per cent. acrylonitrile, (2) 5-50 parts of a butadiene-styrene copolymer consisting of at least 20 per cent. styrene and at least 40 per cent. butadiene, and (3) 10-40 parts of a butadiene-styrene copolymer consisting of at least 5 per cent. butadiene and at least 85 per cent. styrene. The impregnant may be applied as a 30-45 per cent. aqueous dispersion and may contain up to 10 per cent. by weight of an antioxidant or stabilizing agent, e.g. a condensation product of acetone and diphenyl amine, diparaphenyl guanidine, heptylated diphenyl amine, hydroquinone monobenzyl ether and ditertiary butyl hydroquinone.  Specification 603,109, [Group VIII], is referred to.ALSO:Adhesive compositions for application to tapes include, in varying amounts, crude and reclaim natural rubbers, a butadiene-styrene copolymer, coumarone-indene resin, dehydrogenated rosin, calcium silicate, zinc oxide, mineral oil and phenyl beta naphthylamine or other anti-oxidant.  The adhesive is applied from normal heptane solvent.  Specification 603,109, [Group VIII], is referred to.
Patent GB-1387120-A (GB)
Title: Digital type brake control device
IPC: B60T8/1763
Filed: 1971-12-23
Abstract: 1387120 Antiskid braking systems AISIN SEIKI KK 23 Dec 1971 [30 Dec 1970 (4)] 23484/74 Divided out of 1387119 Addition to 1364476 Heading F2F A digital antiskid brake control system for a vehicle hydraulic brake circuit comprises means for sensing the rotational speed of each of one or more wheels and producing a pulse signal representing that speed or the sum of those speeds, means for counting the numbers of pulses in two time periods, of which the second commences after the first, and subtracting the number of pulses in the second time period from that produced in the first to obtain the difference, means for subtracting a predetermined number from the difference to obtain a final number and means for relieving braking pressure when the final number is positive. The counting of pulses and obtaining of the difference is performed by an addition counter and a subtraction counter and the predetermined number is subtracted by supplying a pulse stream of a predetermined number of pulses, to the subtraction counter each time period, by means of a circuit including a gate circuit, input terminals of which are connected to output terminals of a control decoder. The predetermined number is varied in response to a pressure-responsive switch in the braking circuit, the number being higher for braking pressures above a set value than for those pressures below. A sensing circuit I delivers a pulse output representing the combined speeds of a pair of wheels to a circuit II including counters B1, B2 and connected to an addition/ subtraction circuit III. When the final count in the subtraction circuit is negative and is set into a flip-flop F37 no current flows through the solenoid V1 of the pressure relief circuit VII. When a slow or moderate brake action, insufficient to lock the wheels, is applied the final count is zero or negative and the pressure is not reduced but when a severe brake action is applied, the wheels being locked, the final count becomes positive and a current flows through the solenoid V1 to reduce braking pressure.
Patent GB-721930-A (GB)
Title: Worm gearing
Inventor: SHAW HARRY
IPC: F16H55/24
Filed: 1952-09-18
Abstract: 721,930. Toothed gearing. NATIONAL RESEARCH DEVELOPMENT CORPORATION Sept. 9, 1953 [Sept. 18, 1952], No. 23491/52. Class 80 (1) In order to reduce backlash in worm gearing, the worm, which is shaped to follow the curvature of the worm wheel 1, is formed in two parts 2, 3 which are urged axially towards each other by a spring 8. The part 2 is fixed to or integral with the worm shaft while the part 3 is slidable on a square portion of the shaft and is recessed to receive the spring 8, which reacts on a plate 9 secured to the shaft. The plate may be replaced by some other abutment such as an adjustable nut. In a modification, the spring is replaced by a screw arrangement which is adjusted to compensate for wear. The gearing is applicable to computing and other precision instruments, to gearcutting machines and to steering and other gear.
Patent GB-1201523-A (GB)
Title: Finely divided polyesters
Inventor: WIEJAK ALEKSANDER JERZY
IPC: C08J3/14
Filed: 1968-05-17
Abstract: 1,201,523. Finely divided polyesters. IMPERIAL CHEMICAL INDUSTRIES Ltd. 21 April, 1969 [17 May, 1968], No. 23580/68. Heading C3R. Synthetic polyesters are prepared in finelydivided form by dissolving the polyester in propylene carbonate, ethylene carbonate or a mixture thereof at an elevated temperature, admixing the hot solution formed with a diluent to cause precipitation of the polyester, and separating the polyester from the liquid mixture. The diluent is preferably water, isopropyl alcohol, acetone or a low molecular weight hydrocarbon such as toluene. The polyester may be polyethylene terephthalate, polyethylene isothalate, polyethylene orthophthalate or a copolyester of two or more of these. Preferably the polyester solution is heated for at least 30 minutes before being slowly added to the cold diluent.
Patent GB-736932-A (GB)
Title: Improvements in or relating to power take-off shaft assemblies for tractors
IPC: B62D49/00
Filed: 1953-08-27
Abstract: 736,932. Tractor power take-off mechanisms. INTERNATIONAL HARVESTER CO. Aug. 27, 1953 [Sept. 9, 1952], No. 23679/53. Class 79(2). In a tractor the power take-off shaft projecting from a housing structure 16 comprises a main portion 17 supported within the structure and having a flange 33 disposed within an open recess 23 in the structure, the flange 33 being detachably secured to a coaxial stub shaft extension 35 of the power take-off shaft. In the preferred embodiment the portion 17 is supported in a bearing 31 housed in a bore 32 in a member 22 having a flange 24 bolted to the rear wall of the tractor transmission housing 15. The member 22 has the recess 23 which shrouds the flange 33, an oil seal 34 being provided between the bore 32 and recess 23. The stub shaft extension 35 which is bolted to the flange 33 is formed with dogs 42 for driving engagement with a diametric slot 43 in the flange 33. Driving the portion 17 with the extension 35 detached diminishes the danger of catching on the clothing of persons near the tractor.
Patent GB-502071-A (GB)
Title: Improvements in or relating to processes for the production of metal-paper resistances with predetermined resistance values
IPC: H01C17/22
Filed: 1938-08-11
Abstract: 502,071. Resistance, coatings and deposits. BOSCH GES. R. Aug. 11, 1938, No. 23688. Convention date, Aug. 11, 1937. [Class 37] [Also in Group II] On a paper or other nonconductive band support, a thin metal layer is deposited so as to form two adjacent zigzag resistance portions 2, 4, Fig. 3, connected at one or both ends by a thicker metal layer 5. The resistance is constantly measured during manufacture by passing a current from a battery 20 through rollers 18 engaging the portions 2, 3 to an ammeter 22 having a pointer 21 engaging contacts 23, 30 at opposite ends of its travel. When the resistance attains the required value, allowing for the constants of the apparatus, the needle 21 engages the contact 23 and energizes a relay 26 which opens a circuit 27 and thereby interrupts the production of the resistance portions. As shown in Fig. 2, the paper band 1. which may be coated with insulating varnish on both sides or only on the side on which the metal is deposited, is drawn from a supply roll and fed through driving rollers 7, 8, a printing roller 11 and its counter roller 12, past the metal-vaporizing furnace 17, over the contact rollers 18, and through driving rollers 9, 10. The apparatus operates in a vacuum. The printing roller 11 is supplied with grease which gives off vapour in a vacuum. This is applied to the support in those places which are not required to be coated with metal. The roller 11 is carried .by levers 13 pivoted at 14 and is normally held against the band 1 by an electromagnet but is released when the circuit 27 is broken by the relay 26. At the same time a shutter 15, which normally reduces the aperture 16 of the vaporizing furnace to a narrow slit, is moved so as to widen the aperture and increase the thickness of metal deposited so as to.form the connecting portion 5. This extends across the whole width of the aperture 16 owing to the stoppage of the printing. When the thickened portion comes between the rollers 18 these are shortcircuited and the needle 21 engages the contact 30 which controls a circuit for completely closing the aperture 16 by a slide 29, so that the paper receives no further coating. After a certain amount of paper has run off, mechanism actuated by the driving rollers or otherwise again opens the slide 29 and a new section is commenced by the deposition of a thick layer 5. When this reaches the rollers 18 the needle 21 leaves the contact 23 and de-energizes the relay 26, thereby closing the circuit 27 and starting the formation of the resistance portions 2, 3. Retarding means are provided so that the slide 29 is not operated by the temporary impact of the needle 21 on the contact 30. The resistance portions 2, 3 may be used in series, a connecting portion 5 being formed only at one end or in parallel, in which case connecting portions are formed at both ends. Alternatively, the portions 2, 3 may be cut a part.
Patent GB-748367-A (GB)
Title: Improvements in and relating to razors
IPC: B26B21/08
Filed: 1953-08-27
Abstract: 748,367. Razors. PENN, B. H. Aug. 12, 1954 [Aug. 27, 1953], No. 23736/53. Class 30. A safety-razor comprises a thick-backed hollow-ground blade and a holder provided with a clamp the back of the blade being of tapering, diminishing thickness from the centre towards both ends and being provided with a central indentation or indentations to engage a projection on the clamp. As shown, a blade slid endwise into a spring steel clamp d, rivetted or welded to a handle, is centralised by a projection e on the clamp engaging a central recess in the back of the blade. The end of a screwed rod, or of a spring-loaded rod r urged by a screwed plug p, Fig. 11, may press against and increase the grip on the blade. In a modification the recess in the blade is wide enough to receive the clamp.